Mirrors/zig
1
0
Fork 0
mirror of https://codeberg.org/ziglang/zig.git synced 2026-05-21 08:32:02 +03:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'soft-float'

Browse Source
This commit is contained in:
Andrew Kelley
2017-09-14 01:47:53 -04:00
parent bb44e4b479 14cda27b64
commit 75b1c71cb3
397 changed files with 40462 additions and 187 deletions
Download Patch File Download Diff File Expand all files Collapse all files
CMakeLists.txt
+130 -11
View File
@@ -169,12 +169,135 @@ else()
)
endif()
find_package(Threads)
include_directories(
${CMAKE_SOURCE_DIR}
${CMAKE_BINARY_DIR}
# No patches have been applied to SoftFloat-3d
set(EMBEDDED_SOFTFLOAT_SOURCES
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/8086/f128M_isSignalingNaN.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/8086/s_commonNaNToF128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/8086/s_commonNaNToF32UI.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/8086/s_commonNaNToF64UI.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/8086/s_f128MToCommonNaN.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/8086/s_f32UIToCommonNaN.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/8086/s_f64UIToCommonNaN.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/8086/s_propagateNaNF128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/8086/softfloat_raiseFlags.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_add.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_div.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_eq.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_eq_signaling.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_le.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_le_quiet.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_lt.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_lt_quiet.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_mul.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_mulAdd.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_rem.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_roundToInt.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_sqrt.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_sub.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_to_f16.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_to_f32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_to_f64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_to_i32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_to_i32_r_minMag.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_to_i64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_to_i64_r_minMag.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_to_ui32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_to_ui32_r_minMag.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_to_ui64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f128M_to_ui64_r_minMag.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f32_to_f128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/f64_to_f128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_add256M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_addCarryM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_addComplCarryM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_addF128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_addM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_addMagsF16.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_addMagsF32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_addMagsF64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_approxRecip32_1.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_approxRecipSqrt32_1.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_approxRecipSqrt_1Ks.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_approxRecip_1Ks.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_compare128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_compare96M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_countLeadingZeros16.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_countLeadingZeros32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_countLeadingZeros64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_countLeadingZeros8.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_eq128.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_invalidF128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_isNaNF128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_le128.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_lt128.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_mul128MTo256M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_mul64To128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_mulAddF128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_mulAddF16.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_mulAddF32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_mulAddF64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_negXM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_normRoundPackMToF128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_normRoundPackToF16.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_normRoundPackToF32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_normRoundPackToF64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_normSubnormalF128SigM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_normSubnormalF16Sig.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_normSubnormalF32Sig.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_normSubnormalF64Sig.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_remStepMBy32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_roundMToI64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_roundMToUI64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_roundPackMToF128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_roundPackToF16.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_roundPackToF32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_roundPackToF64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_roundToI32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_roundToI64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_roundToUI32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_roundToUI64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shiftLeftM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shiftNormSigF128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shiftRightJam256M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shiftRightJam32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shiftRightJam64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shiftRightJamM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shiftRightM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shortShiftLeft64To96M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shortShiftLeftM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shortShiftRightExtendM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shortShiftRightJam64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shortShiftRightJamM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_shortShiftRightM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_sub1XM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_sub256M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_subM.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_subMagsF16.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_subMagsF32.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_subMagsF64.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/s_tryPropagateNaNF128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/softfloat_state.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/ui32_to_f128M.c"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/ui64_to_f128M.c"
)
add_library(embedded_softfloat ${EMBEDDED_SOFTFLOAT_SOURCES})
if(MSVC)
set_target_properties(embedded_softfloat PROPERTIES
COMPILE_FLAGS "-std=c99"
)
else()
set_target_properties(embedded_softfloat PROPERTIES
COMPILE_FLAGS "-std=c99"
)
endif()
target_include_directories(embedded_softfloat PUBLIC
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d-prebuilt"
"${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/8086"
)
include_directories("${CMAKE_SOURCE_DIR}/deps/SoftFloat-3d/source/include")
set(SOFTFLOAT_LIBRARIES embedded_softfloat)
find_package(Threads)
set(ZIG_SOURCES
"${CMAKE_SOURCE_DIR}/src/analyze.cpp"
@@ -241,18 +364,14 @@ set_target_properties(zig PROPERTIES
)
target_link_libraries(zig LINK_PUBLIC
${SOFTFLOAT_LIBRARIES}
${CLANG_LIBRARIES}
${LLD_LIBRARIES}
${LLVM_LIBRARIES}
${CMAKE_THREAD_LIBS_INIT}
${PLATFORM_LIBRARIES}
)
if(MSVC)
if(MSVC OR MINGW)
target_link_libraries(zig LINK_PUBLIC version)
elseif(MINGW)
target_link_libraries(zig LINK_PUBLIC version quadmath)
else()
target_link_libraries(zig LINK_PUBLIC quadmath)
endif()
install(TARGETS zig DESTINATION bin)
ci/travis_osx_install
+2 -14
View File
@@ -2,18 +2,6 @@
set -x
brew install gcc@7
brew outdated gcc@7 || brew upgrade gcc@7
brew link --overwrite gcc@7
brew install llvm@5
brew outdated llvm@5 || brew upgrade llvm@5
SRC_DIR=$(pwd)
PREFIX_DIR=$HOME/local/llvm5
export CC=/usr/local/opt/gcc/bin/gcc-7
export CXX=/usr/local/opt/gcc/bin/g++-7
mkdir -p $HOME/local
cd $HOME/local
wget http://s3.amazonaws.com/superjoe/temp/llvm5.tar.xz
tar xfp llvm5.tar.xz
cd $SRC_DIR
ci/travis_osx_script
+1 -6
View File
@@ -2,14 +2,9 @@
set -x
PREFIX_DIR=$HOME/local/llvm5
export CC=/usr/local/opt/gcc/bin/gcc-7
export CXX=/usr/local/opt/gcc/bin/g++-7
echo $PATH
mkdir build
cd build
cmake .. -DCMAKE_PREFIX_PATH=$PREFIX_DIR -DCMAKE_INSTALL_PREFIX=$(pwd) -DZIG_LIBC_LIB_DIR=$(dirname $($CC -print-file-name=crt1.o)) -DZIG_LIBC_INCLUDE_DIR=$(echo -n | $CC -E -x c - -v 2>&1 | grep -B1 "End of search list." | head -n1 | cut -c 2- | sed "s/ .*//") -DZIG_LIBC_STATIC_LIB_DIR=$(dirname $($CC -print-file-name=crtbegin.o)) -DZIG_FORCE_EXTERNAL_LLD=ON
cmake .. -DCMAKE_PREFIX_PATH=/usr/local/opt/llvm@5/ -DCMAKE_INSTALL_PREFIX=$(pwd) -DZIG_LIBC_LIB_DIR=$(dirname $($CC -print-file-name=crt1.o)) -DZIG_LIBC_INCLUDE_DIR=$(echo -n | $CC -E -x c - -v 2>&1 | grep -B1 "End of search list." | head -n1 | cut -c 2- | sed "s/ .*//") -DZIG_LIBC_STATIC_LIB_DIR=$(dirname $($CC -print-file-name=crtbegin.o))
make VERBOSE=1
make install
./zig build --build-file ../build.zig test
deps/SoftFloat-3d-prebuilt/platform.h
Vendored
+93
View File
@@ -0,0 +1,93 @@
#ifndef ZIG_DEP_SOFTFLOAT_PLATFORM_H
#define ZIG_DEP_SOFTFLOAT_PLATFORM_H
#if defined(__BIG_ENDIAN__)
#define BIGENDIAN 1
#elif defined(__ARMEB__)
#define BIGENDIAN 1
#elif defined(__THUMBEB__)
#define BIGENDIAN 1
#elif defined(__AARCH64EB__)
#define BIGENDIAN 1
#elif defined(_MIPSEB)
#define BIGENDIAN 1
#elif defined(__MIPSEB)
#define BIGENDIAN 1
#elif defined(__MIPSEB__)
#define BIGENDIAN 1
#elif defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
#define BIGENDIAN 1
#elif defined(_BIG_ENDIAN)
#define BIGENDIAN 1
#elif defined(__sparc)
#define BIGENDIAN 1
#elif defined(__sparc__)
#define BIGENDIAN 1
#elif defined(_POWER)
#define BIGENDIAN 1
#elif defined(__powerpc__)
#define BIGENDIAN 1
#elif defined(__ppc__)
#define BIGENDIAN 1
#elif defined(__hpux)
#define BIGENDIAN 1
#elif defined(__hppa)
#define BIGENDIAN 1
#elif defined(_POWER)
#define BIGENDIAN 1
#elif defined(__s390__)
#define BIGENDIAN 1
#elif defined(__LITTLE_ENDIAN__)
#define LITTLEENDIAN 1
#elif defined(__ARMEL__)
#define LITTLEENDIAN 1
#elif defined(__THUMBEL__)
#define LITTLEENDIAN 1
#elif defined(__AARCH64EL__)
#define LITTLEENDIAN 1
#elif defined(_MIPSEL)
#define LITTLEENDIAN 1
#elif defined(__MIPSEL)
#define LITTLEENDIAN 1
#elif defined(__MIPSEL__)
#define LITTLEENDIAN 1
#elif defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
#define LITTLEENDIAN 1
#elif defined(_LITTLE_ENDIAN)
#define LITTLEENDIAN 1
#elif defined(__i386__)
#define LITTLEENDIAN 1
#elif defined(__alpha__)
#define LITTLEENDIAN 1
#elif defined(__ia64)
#define LITTLEENDIAN 1
#elif defined(__ia64__)
#define LITTLEENDIAN 1
#elif defined(_M_IX86)
#define LITTLEENDIAN 1
#elif defined(_M_IA64)
#define LITTLEENDIAN 1
#elif defined(_M_ALPHA)
#define LITTLEENDIAN 1
#elif defined(__amd64)
#define LITTLEENDIAN 1
#elif defined(__amd64__)
#define LITTLEENDIAN 1
#elif defined(_M_AMD64)
#define LITTLEENDIAN 1
#elif defined(__x86_64)
#define LITTLEENDIAN 1
#elif defined(__x86_64__)
#define LITTLEENDIAN 1
#elif defined(_M_X64)
#define LITTLEENDIAN 1
#elif defined(__bfin__)
#define LITTLEENDIAN 1
#else
#error unable to detect endianness
#endif
#define INLINE inline
#define THREAD_LOCAL __thread
#endif
deps/SoftFloat-3d/COPYING.txt
Vendored
+37
View File
@@ -0,0 +1,37 @@
License for Berkeley SoftFloat Release 3d
John R. Hauser
2017 August 10
The following applies to the whole of SoftFloat Release 3d as well as to
each source file individually.
Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions, and the following disclaimer in the
documentation and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
deps/SoftFloat-3d/README.html
Vendored
+49
View File
@@ -0,0 +1,49 @@
<HTML>
<HEAD>
<TITLE>Berkeley SoftFloat Package Overview</TITLE>
</HEAD>
<BODY>
<H1>Package Overview for Berkeley SoftFloat Release 3d</H1>
<P>
John R. Hauser<BR>
2017 August 10<BR>
</P>
<P>
Berkeley SoftFloat is a software implementation of binary floating-point that
conforms to the IEEE Standard for Floating-Point Arithmetic.
SoftFloat is distributed in the form of C source code.
Building the SoftFloat sources generates a library file (typically
<CODE>softfloat.a</CODE> or <CODE>libsoftfloat.a</CODE>) containing the
floating-point subroutines.
</P>
<P>
The SoftFloat package is documented in the following files in the
<CODE>doc</CODE> subdirectory:
<BLOCKQUOTE>
<TABLE>
<TR>
<TD><A HREF="doc/SoftFloat.html"><NOBR><CODE>SoftFloat.html</CODE></NOBR></A></TD>
<TD>Documentation for using the SoftFloat functions.</TD>
</TR>
<TR>
<TD><A HREF="doc/SoftFloat-source.html"><NOBR><CODE>SoftFloat-source.html</CODE></NOBR></A></TD>
<TD>Documentation for building SoftFloat.</TD>
</TR>
<TR>
<TD><A HREF="doc/SoftFloat-history.html"><NOBR><CODE>SoftFloat-history.html</CODE></A><CODE>&nbsp;&nbsp;&nbsp;</CODE></NOBR></TD>
<TD>History of the major changes to SoftFloat.</TD>
</TR>
</TABLE>
</BLOCKQUOTE>
Other files in the package comprise the source code for SoftFloat.
</P>
</BODY>
deps/SoftFloat-3d/README.txt
Vendored
+21
View File
@@ -0,0 +1,21 @@
Package Overview for Berkeley SoftFloat Release 3d
John R. Hauser
2017 August 10
Berkeley SoftFloat is a software implementation of binary floating-point
that conforms to the IEEE Standard for Floating-Point Arithmetic. SoftFloat
is distributed in the form of C source code. Building the SoftFloat sources
generates a library file (typically "softfloat.a" or "libsoftfloat.a")
containing the floating-point subroutines.
The SoftFloat package is documented in the following files in the "doc"
subdirectory:
SoftFloat.html Documentation for using the SoftFloat functions.
SoftFloat-source.html Documentation for building SoftFloat.
SoftFloat-history.html History of the major changes to SoftFloat.
Other files in the package comprise the source code for SoftFloat.
deps/SoftFloat-3d/doc/SoftFloat-history.html
Vendored
+215
View File
@@ -0,0 +1,215 @@
<HTML>
<HEAD>
<TITLE>Berkeley SoftFloat History</TITLE>
</HEAD>
<BODY>
<H1>History of Berkeley SoftFloat, to Release 3d</H1>
<P>
John R. Hauser<BR>
2017 August 10<BR>
</P>
<H3>Release 3d (2017 August)</H3>
<UL>
<LI>
Fixed bugs in the square root functions for <NOBR>64-bit</NOBR>
double-precision, <NOBR>80-bit</NOBR> double-extended-precision, and
<NOBR>128-bit</NOBR> quadruple-precision.
For <NOBR>64-bit</NOBR> double-precision (<CODE>f64_sqrt</CODE>), the result
could sometimes be off by <NOBR>1 unit</NOBR> in the last place
(<NOBR>1 ulp</NOBR>) from what it should be.
For the larger formats, the square root could be wrong in a large portion of
the less-significant bits.
(A bug in <CODE>f128_sqrt</CODE> was first reported by Alexei Sibidanov.)
</UL>
<H3>Release 3c (2017 February)</H3>
<UL>
<LI>
Added optional rounding mode <CODE>odd</CODE> (round to odd, also known as
<EM>jamming</EM>).
<LI>
Corrected the documentation concerning non-canonical representations in
<NOBR>80-bit</NOBR> double-extended-precision.
</UL>
<H3>Release 3b (2016 July)</H3>
<UL>
<LI>
Implemented the common <NOBR>16-bit</NOBR> &ldquo;half-precision&rdquo;
floating-point format (<CODE>float16_t</CODE>).
<LI>
Made the integer values returned on invalid conversions to integer formats
be determined by the port-specific specialization instead of being the same for
all ports.
<LI>
Added preprocessor macro <CODE>THREAD_LOCAL</CODE> to allow the floating-point
state (modes and exception flags) to be made per-thread.
<LI>
Modified the provided Makefiles to allow some options to be overridden from the
<CODE>make</CODE> command.
<LI>
Made other minor improvements.
</UL>
<H3>Release 3a (2015 October)</H3>
<UL>
<LI>
Replaced the license text supplied by the University of California, Berkeley.
</UL>
<H3>Release 3 (2015 February)</H3>
<UL>
<LI>
Complete rewrite, funded by the University of California, Berkeley, and
consequently having a different use license than earlier releases.
Major changes included renaming most types and functions, upgrading some
algorithms, restructuring the source files, and making SoftFloat into a true
library.
<LI>
Added functions to convert between floating-point and unsigned integers, both
<NOBR>32-bit</NOBR> and <NOBR>64-bit</NOBR> (<CODE>uint32_t</CODE> and
<CODE>uint64_t</CODE>).
<LI>
Added functions for fused multiply-add, for all supported floating-point
formats except <NOBR>80-bit</NOBR> double-extended-precision.
<LI>
Added support for a fifth rounding mode, <CODE>near_maxMag</CODE> (round to
nearest, with ties to maximum magnitude, away from zero).
<LI>
Dropped the <CODE>timesoftfloat</CODE> program (now part of the Berkeley
TestFloat package).
</UL>
<H3>Release 2c (2015 January)</H3>
<UL>
<LI>
Fixed mistakes affecting some <NOBR>64-bit</NOBR> processors.
<LI>
Further improved the documentation and the wording for the legal restrictions
on using SoftFloat releases <NOBR>through 2c</NOBR> (not applicable to
<NOBR>Release 3</NOBR> or later).
</UL>
<H3>Release 2b (2002 May)</H3>
<UL>
<LI>
Made minor updates to the documentation, including improved wording for the
legal restrictions on using SoftFloat.
</UL>
<H3>Release 2a (1998 December)</H3>
<UL>
<LI>
Added functions to convert between <NOBR>64-bit</NOBR> integers
(<CODE>int64</CODE>) and all supported floating-point formats.
<LI>
Fixed a bug in all <NOBR>64-bit</NOBR>-version square root functions except
<CODE>float32_sqrt</CODE> that caused the result sometimes to be off by
<NOBR>1 unit</NOBR> in the last place (<NOBR>1 ulp</NOBR>) from what it should
be.
(Bug discovered by Paul Donahue.)
<LI>
Improved the Makefiles.
</UL>
<H3>Release 2 (1997 June)</H3>
<UL>
<LI>
Created the <NOBR>64-bit</NOBR> (<CODE>bits64</CODE>) version, adding the
<CODE>floatx80</CODE> and <CODE>float128</CODE> formats.
<LI>
Changed the source directory structure, splitting the sources into a
<CODE>bits32</CODE> and a <CODE>bits64</CODE> version.
Renamed <CODE>environment.h</CODE> to <CODE>milieu.h</CODE> to avoid confusion
with environment variables.
<LI>
Fixed a small error that caused <CODE>float64_round_to_int</CODE> often to
round the wrong way in nearest/even mode when the operand was between
2<SUP>20</SUP> and 2<SUP>21</SUP> and halfway between two integers.
</UL>
<H3>Release 1a (1996 July)</H3>
<UL>
<LI>
Corrected a mistake that caused borderline underflow cases not to raise the
underflow flag when they should have.
(Problem reported by Doug Priest.)
<LI>
Added the <CODE>float_detect_tininess</CODE> variable to control whether
tininess is detected before or after rounding.
</UL>
<H3>Release 1 (1996 July)</H3>
<UL>
<LI>
Original release, based on work done for the International Computer Science
Institute (ICSI) in Berkeley, California.
</UL>
</BODY>
deps/SoftFloat-3d/doc/SoftFloat-source.html
Vendored
+633
View File
@@ -0,0 +1,633 @@
<HTML>
<HEAD>
<TITLE>Berkeley SoftFloat Source Documentation</TITLE>
</HEAD>
<BODY>
<H1>Berkeley SoftFloat Release 3d: Source Documentation</H1>
<P>
John R. Hauser<BR>
2017 August 10<BR>
</P>
<H2>Contents</H2>
<BLOCKQUOTE>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0>
<COL WIDTH=25>
<COL WIDTH=*>
<TR><TD COLSPAN=2>1. Introduction</TD></TR>
<TR><TD COLSPAN=2>2. Limitations</TD></TR>
<TR><TD COLSPAN=2>3. Acknowledgments and License</TD></TR>
<TR><TD COLSPAN=2>4. SoftFloat Package Directory Structure</TD></TR>
<TR><TD COLSPAN=2>5. Issues for Porting SoftFloat to a New Target</TD></TR>
<TR>
<TD></TD>
<TD>5.1. Standard Headers <CODE>&lt;stdbool.h&gt;</CODE> and
<CODE>&lt;stdint.h&gt;</CODE></TD>
</TR>
<TR><TD></TD><TD>5.2. Specializing Floating-Point Behavior</TD></TR>
<TR><TD></TD><TD>5.3. Macros for Build Options</TD></TR>
<TR><TD></TD><TD>5.4. Adapting a Template Target Directory</TD></TR>
<TR>
<TD></TD><TD>5.5. Target-Specific Optimization of Primitive Functions</TD>
</TR>
<TR><TD COLSPAN=2>6. Testing SoftFloat</TD></TR>
<TR>
<TD COLSPAN=2>7. Providing SoftFloat as a Common Library for Applications</TD>
</TR>
<TR><TD COLSPAN=2>8. Contact Information</TD></TR>
</TABLE>
</BLOCKQUOTE>
<H2>1. Introduction</H2>
<P>
This document gives information needed for compiling and/or porting Berkeley
SoftFloat, a library of C functions implementing binary floating-point
conforming to the IEEE Standard for Floating-Point Arithmetic.
For basic documentation about SoftFloat refer to
<A HREF="SoftFloat.html"><NOBR><CODE>SoftFloat.html</CODE></NOBR></A>.
</P>
<P>
The source code for SoftFloat is intended to be relatively machine-independent
and should be compilable with any ISO-Standard C compiler that also supports
<NOBR>64-bit</NOBR> integers.
SoftFloat has been successfully compiled with the GNU C Compiler
(<CODE>gcc</CODE>) for several platforms.
</P>
<P>
<NOBR>Release 3</NOBR> of SoftFloat was a complete rewrite relative to
<NOBR>Release 2</NOBR> or earlier.
Changes to the interface of SoftFloat functions are documented in
<A HREF="SoftFloat.html"><NOBR><CODE>SoftFloat.html</CODE></NOBR></A>.
The current version of SoftFloat is <NOBR>Release 3d</NOBR>.
</P>
<H2>2. Limitations</H2>
<P>
SoftFloat assumes the computer has an addressable byte size of either 8 or
<NOBR>16 bits</NOBR>.
(Nearly all computers in use today have <NOBR>8-bit</NOBR> bytes.)
</P>
<P>
SoftFloat is written in C and is designed to work with other C code.
The C compiler used must conform at a minimum to the 1989 ANSI standard for the
C language (same as the 1990 ISO standard) and must in addition support basic
arithmetic on <NOBR>64-bit</NOBR> integers.
Earlier releases of SoftFloat included implementations of <NOBR>32-bit</NOBR>
single-precision and <NOBR>64-bit</NOBR> double-precision floating-point that
did not require <NOBR>64-bit</NOBR> integers, but this option is not supported
starting with <NOBR>Release 3</NOBR>.
Since 1999, ISO standards for C have mandated compiler support for
<NOBR>64-bit</NOBR> integers.
A compiler conforming to the 1999 C Standard or later is recommended but not
strictly required.
</P>
<P>
<NOBR>C Standard</NOBR> header files <CODE>&lt;stdbool.h&gt;</CODE> and
<CODE>&lt;stdint.h&gt;</CODE> are required for defining standard Boolean and
integer types.
If these headers are not supplied with the C compiler, minimal substitutes must
be provided.
SoftFloat&rsquo;s dependence on these headers is detailed later in
<NOBR>section 5.1</NOBR>, <I>Standard Headers <CODE>&lt;stdbool.h&gt;</CODE>
and <CODE>&lt;stdint.h&gt;</CODE></I>.
</P>
<H2>3. Acknowledgments and License</H2>
<P>
The SoftFloat package was written by me, <NOBR>John R.</NOBR> Hauser.
<NOBR>Release 3</NOBR> of SoftFloat was a completely new implementation
supplanting earlier releases.
The project to create <NOBR>Release 3</NOBR> (now <NOBR>through 3d</NOBR>) was
done in the employ of the University of California, Berkeley, within the
Department of Electrical Engineering and Computer Sciences, first for the
Parallel Computing Laboratory (Par Lab) and then for the ASPIRE Lab.
The work was officially overseen by Prof. Krste Asanovic, with funding provided
by these sources:
<BLOCKQUOTE>
<TABLE>
<COL>
<COL WIDTH=10>
<COL>
<TR>
<TD VALIGN=TOP><NOBR>Par Lab:</NOBR></TD>
<TD></TD>
<TD>
Microsoft (Award #024263), Intel (Award #024894), and U.C. Discovery
(Award #DIG07-10227), with additional support from Par Lab affiliates Nokia,
NVIDIA, Oracle, and Samsung.
</TD>
</TR>
<TR>
<TD VALIGN=TOP><NOBR>ASPIRE Lab:</NOBR></TD>
<TD></TD>
<TD>
DARPA PERFECT program (Award #HR0011-12-2-0016), with additional support from
ASPIRE industrial sponsor Intel and ASPIRE affiliates Google, Nokia, NVIDIA,
Oracle, and Samsung.
</TD>
</TR>
</TABLE>
</BLOCKQUOTE>
</P>
<P>
The following applies to the whole of SoftFloat <NOBR>Release 3d</NOBR> as well
as to each source file individually.
</P>
<P>
Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
University of California.
All rights reserved.
</P>
<P>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
<OL>
<LI>
<P>
Redistributions of source code must retain the above copyright notice, this
list of conditions, and the following disclaimer.
</P>
<LI>
<P>
Redistributions in binary form must reproduce the above copyright notice, this
list of conditions, and the following disclaimer in the documentation and/or
other materials provided with the distribution.
</P>
<LI>
<P>
Neither the name of the University nor the names of its contributors may be
used to endorse or promote products derived from this software without specific
prior written permission.
</P>
</OL>
</P>
<P>
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS &ldquo;AS IS&rdquo;,
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED.
IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
</P>
<H2>4. SoftFloat Package Directory Structure</H2>
<P>
Because SoftFloat is targeted to multiple platforms, its source code is
slightly scattered between target-specific and target-independent directories
and files.
The supplied directory structure is as follows:
<BLOCKQUOTE>
<PRE>
doc
source
include
8086
8086-SSE
build
template-FAST_INT64
template-not-FAST_INT64
Linux-386-GCC
Linux-386-SSE2-GCC
Linux-x86_64-GCC
Win32-MinGW
Win32-SSE2-MinGW
Win64-MinGW-w64
</PRE>
</BLOCKQUOTE>
The majority of the SoftFloat sources are provided in the <CODE>source</CODE>
directory.
The <CODE>include</CODE> subdirectory of <CODE>source</CODE> contains several
header files (unsurprisingly), while the <CODE>8086</CODE> and
<NOBR><CODE>8086-SSE</CODE></NOBR> subdirectories contain source files that
specialize the floating-point behavior to match the Intel x86 line of
processors.
The files in directory <CODE>8086</CODE> give floating-point behavior
consistent solely with Intel&rsquo;s older, 8087-derived floating-point, while
those in <NOBR><CODE>8086-SSE</CODE></NOBR> update the behavior of the
non-extended formats (<CODE>float16_t</CODE>, <CODE>float32_t</CODE>,
<CODE>float64_t</CODE>, and <CODE>float128_t</CODE>) to mirror Intel&rsquo;s
more recent Streaming SIMD Extensions (SSE) and other compatible extensions.
If other specializations are attempted, these would be expected to be other
subdirectories of <CODE>source</CODE> alongside <CODE>8086</CODE> and
<NOBR><CODE>8086-SSE</CODE></NOBR>.
Specialization is covered later, in <NOBR>section 5.2</NOBR>, <I>Specializing
Floating-Point Behavior</I>.
</P>
<P>
The <CODE>build</CODE> directory is intended to contain a subdirectory for each
target platform for which a build of the SoftFloat library may be created.
For each build target, the target&rsquo;s subdirectory is where all derived
object files and the completed SoftFloat library (typically
<CODE>softfloat.a</CODE> or <CODE>libsoftfloat.a</CODE>) are created.
The two <CODE>template</CODE> subdirectories are not actual build targets but
contain sample files for creating new target directories.
(The meaning of <CODE>FAST_INT64</CODE> will be explained later.)
</P>
<P>
Ignoring the <CODE>template</CODE> directories, the supplied target directories
are intended to follow a naming system of
<NOBR><CODE>&lt;<I>execution-environment</I>&gt;-&lt;<I>compiler</I>&gt;</CODE></NOBR>.
For the example targets,
<NOBR><CODE>&lt;<I>execution-environment</I>&gt;</CODE></NOBR> is
<NOBR><CODE>Linux-386</CODE></NOBR>, <NOBR><CODE>Linux-386-SSE2</CODE></NOBR>,
<NOBR><CODE>Linux-x86_64</CODE></NOBR>, <CODE>Win32</CODE>,
<NOBR><CODE>Win32-SSE2</CODE></NOBR>, or <CODE>Win64</CODE>, and
<NOBR><CODE>&lt;<I>compiler</I>&gt;</CODE></NOBR> is <CODE>GCC</CODE>,
<CODE>MinGW</CODE>, or <NOBR><CODE>MinGW-w64</CODE></NOBR>.
</P>
<P>
At the current time, all of the supplied target directories are merely examples
that may or may not be correct for compiling on any particular system.
Despite requests, there are currently no plans to include and maintain in the
SoftFloat package the build files needed for a great many users&rsquo;
compilation environments, which after all can span a broad range of operating
systems, compilers, and other tools.
</P>
<P>
As supplied, each target directory contains two files:
<BLOCKQUOTE>
<PRE>
Makefile
platform.h
</PRE>
</BLOCKQUOTE>
The provided <CODE>Makefile</CODE> is written for GNU <CODE>make</CODE>.
A build of SoftFloat for the specific target is begun by executing the
<CODE>make</CODE> command with the target directory as the current directory.
A completely different build tool can be used if an appropriate
<CODE>Makefile</CODE> equivalent is created.
</P>
<P>
The <CODE>platform.h</CODE> header file exists to provide a location for
additional C declarations specific to the build target.
Every C source file of SoftFloat contains a <CODE>#include</CODE> for
<CODE>platform.h</CODE>.
In many cases, the contents of <CODE>platform.h</CODE> can be as simple as one
or two lines of code.
At the other extreme, to get maximal performance from SoftFloat, it may be
desirable to include in header <CODE>platform.h</CODE> (directly or via
<CODE>#include</CODE>) declarations for numerous target-specific optimizations.
Such possibilities are discussed in the next section, <I>Issues for Porting
SoftFloat to a New Target</I>.
If the target&rsquo;s compiler or library has bugs or other shortcomings,
workarounds for these issues may also be possible with target-specific
declarations in <CODE>platform.h</CODE>, avoiding the need to modify the main
SoftFloat sources.
</P>
<H2>5. Issues for Porting SoftFloat to a New Target</H2>
<H3>5.1. Standard Headers <CODE>&lt;stdbool.h&gt;</CODE> and <CODE>&lt;stdint.h&gt;</CODE></H3>
<P>
The SoftFloat sources make use of standard headers
<CODE>&lt;stdbool.h&gt;</CODE> and <CODE>&lt;stdint.h&gt;</CODE>, which have
been part of the ISO C Standard Library since 1999.
With any recent compiler, these standard headers are likely to be supported,
even if the compiler does not claim complete conformance to the latest ISO C
Standard.
For older or nonstandard compilers, substitutes for
<CODE>&lt;stdbool.h&gt;</CODE> and <CODE>&lt;stdint.h&gt;</CODE> may need to be
created.
SoftFloat depends on these names from <CODE>&lt;stdbool.h&gt;</CODE>:
<BLOCKQUOTE>
<PRE>
bool
true
false
</PRE>
</BLOCKQUOTE>
and on these names from <CODE>&lt;stdint.h&gt;</CODE>:
<BLOCKQUOTE>
<PRE>
uint16_t
uint32_t
uint64_t
int32_t
int64_t
UINT64_C
INT64_C
uint_least8_t
uint_fast8_t
uint_fast16_t
uint_fast32_t
uint_fast64_t
int_fast8_t
int_fast16_t
int_fast32_t
int_fast64_t
</PRE>
</BLOCKQUOTE>
</P>
<H3>5.2. Specializing Floating-Point Behavior</H3>
<P>
The IEEE Floating-Point Standard allows for some flexibility in a conforming
implementation, particularly concerning NaNs.
The SoftFloat <CODE>source</CODE> directory is supplied with some
<I>specialization</I> subdirectories containing possible definitions for this
implementation-specific behavior.
For example, the <CODE>8086</CODE> and <NOBR><CODE>8086-SSE</CODE></NOBR>
subdirectories have source files that specialize SoftFloat&rsquo;s behavior to
match that of Intel&rsquo;s x86 line of processors.
The files in a specialization subdirectory must determine:
<UL>
<LI>
whether tininess for underflow is detected before or after rounding by default;
<LI>
how signaling NaNs are distinguished from quiet NaNs;
<LI>
what (if anything) special happens when exceptions are raised;
<LI>
the default generated quiet NaNs;
<LI>
how NaNs are propagated from function inputs to output; and
<LI>
the integer results returned when conversions to integer type raise the
<I>invalid</I> exception.
</UL>
</P>
<P>
As provided, the build process for a target expects to involve exactly
<EM>one</EM> specialization directory that defines <EM>all</EM> of these
implementation-specific details for the target.
A specialization directory such as <CODE>8086</CODE> is expected to contain a
header file called <CODE>specialize.h</CODE>, together with whatever other
source files are needed to complete the specialization.
</P>
<P>
A new build target may use an existing specialization, such as the ones
provided by the <CODE>8086</CODE> and <NOBR><CODE>8086-SSE</CODE></NOBR>
subdirectories.
If a build target needs a new specialization, different from any existing ones,
it is recommended that a new specialization subdirectory be created in the
<CODE>source</CODE> directory for this purpose.
The <CODE>specialize.h</CODE> header file from any of the provided
specialization subdirectories can be used as a model for what definitions are
needed.
</P>
<H3>5.3. Macros for Build Options</H3>
<P>
The SoftFloat source files adapt the floating-point implementation according to
several C preprocessor macros:
<BLOCKQUOTE>
<DL>
<DT><CODE>LITTLEENDIAN</CODE>
<DD>
Must be defined for little-endian machines; must not be defined for big-endian
machines.
<DT><CODE>INLINE</CODE>
<DD>
Specifies the sequence of tokens used to indicate that a C function should be
inlined.
If macro <CODE>INLINE_LEVEL</CODE> is defined with a value of 1 or higher, this
macro must be defined; otherwise, this macro is ignored and need not be
defined.
For compilers that conform to the C Standard&rsquo;s rules for inline
functions, this macro can be defined as the single keyword <CODE>inline</CODE>.
For other compilers that follow a convention pre-dating the standardization of
<CODE>inline</CODE>, this macro may need to be defined to <CODE>extern</CODE>
<CODE>inline</CODE>.
<DT><CODE>THREAD_LOCAL</CODE>
<DD>
Can be defined to a sequence of tokens that, when appearing at the start of a
variable declaration, indicates to the C compiler that the variable is
<I>per-thread</I>, meaning that each execution thread gets its own separate
instance of the variable.
This macro is used in header <CODE>softfloat.h</CODE> in the declarations of
variables <CODE>softfloat_roundingMode</CODE>,
<CODE>softfloat_detectTininess</CODE>, <CODE>extF80_roundingPrecision</CODE>,
and <CODE>softfloat_exceptionFlags</CODE>.
If macro <CODE>THREAD_LOCAL</CODE> is left undefined, these variables will
default to being ordinary global variables.
Depending on the compiler, possible valid definitions of this macro include
<CODE>_Thread_local</CODE> and <CODE>__thread</CODE>.
</DL>
<DL>
<DT><CODE>SOFTFLOAT_ROUND_ODD</CODE>
<DD>
Can be defined to enable support for optional rounding mode
<CODE>softfloat_round_odd</CODE>.
</DL>
<DL>
<DT><CODE>INLINE_LEVEL</CODE>
<DD>
Can be defined to an integer to determine the degree of inlining requested of
the compiler.
Larger numbers request that more inlining be done.
If this macro is not defined or is defined to a value less <NOBR>than 1</NOBR>
(zero or negative), no inlining is requested.
The maximum effective value is no higher <NOBR>than 5</NOBR>.
Defining this macro to a value greater than 5 is the same as defining it
<NOBR>to 5</NOBR>.
<DT><CODE>SOFTFLOAT_FAST_INT64</CODE>
<DD>
Can be defined to indicate that the build target&rsquo;s implementation of
<NOBR>64-bit</NOBR> arithmetic is efficient.
For newer <NOBR>64-bit</NOBR> processors, this macro should usually be defined.
For very small microprocessors whose buses and registers are <NOBR>8-bit</NOBR>
or <NOBR>16-bit</NOBR> in size, this macro should usually not be defined.
Whether this macro should be defined for a <NOBR>32-bit</NOBR> processor may
depend on the target machine and the applications that will use SoftFloat.
<DT><CODE>SOFTFLOAT_FAST_DIV32TO16</CODE>
<DD>
Can be defined to indicate that the target&rsquo;s division operator
<NOBR>in C</NOBR> (written as <CODE>/</CODE>) is reasonably efficient for
dividing a <NOBR>32-bit</NOBR> unsigned integer by a <NOBR>16-bit</NOBR>
unsigned integer.
Setting this macro may affect the performance of function <CODE>f16_div</CODE>.
<DT><CODE>SOFTFLOAT_FAST_DIV64TO32</CODE>
<DD>
Can be defined to indicate that the target&rsquo;s division operator
<NOBR>in C</NOBR> (written as <CODE>/</CODE>) is reasonably efficient for
dividing a <NOBR>64-bit</NOBR> unsigned integer by a <NOBR>32-bit</NOBR>
unsigned integer.
Setting this macro may affect the performance of division, remainder, and
square root operations other than <CODE>f16_div</CODE>.
</DL>
</BLOCKQUOTE>
</P>
<P>
Following the usual custom <NOBR>for C</NOBR>, for most of these macros (all
except <CODE>INLINE</CODE>, <CODE>THREAD_LOCAL</CODE>, and
<CODE>INLINE_LEVEL</CODE>), the content of any definition is irrelevant;
what matters is a macro&rsquo;s effect on <CODE>#ifdef</CODE> directives.
</P>
<P>
It is recommended that any definitions of macros <CODE>LITTLEENDIAN</CODE>,
<CODE>INLINE</CODE>, and <CODE>THREAD_LOCAL</CODE> be made in a build
target&rsquo;s <CODE>platform.h</CODE> header file, because these macros are
expected to be determined inflexibly by the target machine and compiler.
The other five macros select options and control optimization, and thus might
be better located in the target&rsquo;s Makefile (or its equivalent).
</P>
<H3>5.4. Adapting a Template Target Directory</H3>
<P>
In the <CODE>build</CODE> directory, two <CODE>template</CODE> subdirectories
provide models for new target directories.
Two different templates exist because different functions are needed in the
SoftFloat library depending on whether macro <CODE>SOFTFLOAT_FAST_INT64</CODE>
is defined.
If macro <CODE>SOFTFLOAT_FAST_INT64</CODE> will be defined,
<NOBR><CODE>template-FAST_INT64</CODE></NOBR> is the template to use;
otherwise, <NOBR><CODE>template-not-FAST_INT64</CODE></NOBR> is the appropriate
template.
A new target directory can be created by copying the correct template directory
and editing the files inside.
To avoid confusion, it would be wise to refrain from editing the files within a
template directory directly.
</P>
<H3>5.5. Target-Specific Optimization of Primitive Functions</H3>
<P>
Header file <CODE>primitives.h</CODE> (in directory
<CODE>source/include</CODE>) declares macros and functions for numerous
underlying arithmetic operations upon which many of SoftFloat&rsquo;s
floating-point functions are ultimately built.
The SoftFloat sources include implementations of all of these functions/macros,
written as standard C code, so a complete and correct SoftFloat library can be
created using only the supplied code for all functions.
However, for many targets, SoftFloat&rsquo;s performance can be improved by
substituting target-specific implementations of some of the functions/macros
declared in <CODE>primitives.h</CODE>.
</P>
<P>
For example, <CODE>primitives.h</CODE> declares a function called
<CODE>softfloat_countLeadingZeros32</CODE> that takes an unsigned
<NOBR>32-bit</NOBR> integer as an argument and returns the number of the
integer&rsquo;s most-significant bits that are zeros.
While the SoftFloat sources include an implementation of this function written
in <NOBR>standard C</NOBR>, many processors can perform this same function
directly in only one or two machine instructions.
An alternative, target-specific implementation that maps to those instructions
is likely to be more efficient than the generic C code from the SoftFloat
package.
</P>
<P>
A build target can replace the supplied version of any function or macro of
<CODE>primitives.h</CODE> by defining a macro with the same name in the
target&rsquo;s <CODE>platform.h</CODE> header file.
For this purpose, it may be helpful for <CODE>platform.h</CODE> to
<CODE>#include</CODE> header file <CODE>primitiveTypes.h</CODE>, which defines
types used for arguments and results of functions declared in
<CODE>primitives.h</CODE>.
When a desired replacement implementation is a function, not a macro, it is
sufficient for <CODE>platform.h</CODE> to include the line
<BLOCKQUOTE>
<PRE>
#define &lt;<I>function-name</I>&gt; &lt;<I>function-name</I>&gt;
</PRE>
</BLOCKQUOTE>
where <NOBR><CODE>&lt;<I>function-name</I>&gt;</CODE></NOBR> is the name of the
function.
This technically defines <NOBR><CODE>&lt;<I>function-name</I>&gt;</CODE></NOBR>
as a macro, but one that resolves to the same name, which may then be a
function.
(A preprocessor that conforms to the C Standard must limit recursive macro
expansion from being applied more than once.)
</P>
<H2>6. Testing SoftFloat</H2>
<P>
SoftFloat can be tested using the <CODE>testsoftfloat</CODE> program by the
same author.
This program is part of the Berkeley TestFloat package available at the Web
page
<A HREF="http://www.jhauser.us/arithmetic/TestFloat.html"><NOBR><CODE>http://www.jhauser.us/arithmetic/TestFloat.html</CODE></NOBR></A>.
The TestFloat package also has a program called <CODE>timesoftfloat</CODE> that
measures the speed of SoftFloat&rsquo;s floating-point functions.
</P>
<H2>7. Providing SoftFloat as a Common Library for Applications</H2>
<P>
Header file <CODE>softfloat.h</CODE> defines the SoftFloat interface as seen by
clients.
If the SoftFloat library will be made a common library for programs on a
system, the supplied <CODE>softfloat.h</CODE> has a couple of deficiencies for
this purpose:
<UL>
<LI>
As supplied, <CODE>softfloat.h</CODE> depends on another header,
<CODE>softfloat_types.h</CODE>, that is not intended for public use but which
must also be visible to the programmer&rsquo;s compiler.
<LI>
More troubling, at the time <CODE>softfloat.h</CODE> is included in a C source
file, macros <CODE>SOFTFLOAT_FAST_INT64</CODE> and <CODE>THREAD_LOCAL</CODE>
must be defined, or not defined, consistent with how these macro were defined
when the SoftFloat library was built.
</UL>
In the situation that new programs may regularly <CODE>#include</CODE> header
file <CODE>softfloat.h</CODE>, it is recommended that a custom, self-contained
version of this header file be created that eliminates these issues.
</P>
<H2>8. Contact Information</H2>
<P>
At the time of this writing, the most up-to-date information about SoftFloat
and the latest release can be found at the Web page
<A HREF="http://www.jhauser.us/arithmetic/SoftFloat.html"><NOBR><CODE>http://www.jhauser.us/arithmetic/SoftFloat.html</CODE></NOBR></A>.
</P>
</BODY>
deps/SoftFloat-3d/doc/SoftFloat.html
Vendored
+1538
View File
@@ -0,0 +1,1538 @@
<HTML>
<HEAD>
<TITLE>Berkeley SoftFloat Library Interface</TITLE>
</HEAD>
<BODY>
<H1>Berkeley SoftFloat Release 3d: Library Interface</H1>
<P>
John R. Hauser<BR>
2017 August 10<BR>
</P>
<H2>Contents</H2>
<BLOCKQUOTE>
<TABLE BORDER=0 CELLSPACING=0 CELLPADDING=0>
<COL WIDTH=25>
<COL WIDTH=*>
<TR><TD COLSPAN=2>1. Introduction</TD></TR>
<TR><TD COLSPAN=2>2. Limitations</TD></TR>
<TR><TD COLSPAN=2>3. Acknowledgments and License</TD></TR>
<TR><TD COLSPAN=2>4. Types and Functions</TD></TR>
<TR><TD></TD><TD>4.1. Boolean and Integer Types</TD></TR>
<TR><TD></TD><TD>4.2. Floating-Point Types</TD></TR>
<TR><TD></TD><TD>4.3. Supported Floating-Point Functions</TD></TR>
<TR>
<TD></TD>
<TD>4.4. Non-canonical Representations in <CODE>extFloat80_t</CODE></TD>
</TR>
<TR><TD></TD><TD>4.5. Conventions for Passing Arguments and Results</TD></TR>
<TR><TD COLSPAN=2>5. Reserved Names</TD></TR>
<TR><TD COLSPAN=2>6. Mode Variables</TD></TR>
<TR><TD></TD><TD>6.1. Rounding Mode</TD></TR>
<TR><TD></TD><TD>6.2. Underflow Detection</TD></TR>
<TR>
<TD></TD>
<TD>6.3. Rounding Precision for the <NOBR>80-Bit</NOBR> Extended Format</TD>
</TR>
<TR><TD COLSPAN=2>7. Exceptions and Exception Flags</TD></TR>
<TR><TD COLSPAN=2>8. Function Details</TD></TR>
<TR><TD></TD><TD>8.1. Conversions from Integer to Floating-Point</TD></TR>
<TR><TD></TD><TD>8.2. Conversions from Floating-Point to Integer</TD></TR>
<TR><TD></TD><TD>8.3. Conversions Among Floating-Point Types</TD></TR>
<TR><TD></TD><TD>8.4. Basic Arithmetic Functions</TD></TR>
<TR><TD></TD><TD>8.5. Fused Multiply-Add Functions</TD></TR>
<TR><TD></TD><TD>8.6. Remainder Functions</TD></TR>
<TR><TD></TD><TD>8.7. Round-to-Integer Functions</TD></TR>
<TR><TD></TD><TD>8.8. Comparison Functions</TD></TR>
<TR><TD></TD><TD>8.9. Signaling NaN Test Functions</TD></TR>
<TR><TD></TD><TD>8.10. Raise-Exception Function</TD></TR>
<TR><TD COLSPAN=2>9. Changes from SoftFloat <NOBR>Release 2</NOBR></TD></TR>
<TR><TD></TD><TD>9.1. Name Changes</TD></TR>
<TR><TD></TD><TD>9.2. Changes to Function Arguments</TD></TR>
<TR><TD></TD><TD>9.3. Added Capabilities</TD></TR>
<TR><TD></TD><TD>9.4. Better Compatibility with the C Language</TD></TR>
<TR><TD></TD><TD>9.5. New Organization as a Library</TD></TR>
<TR><TD></TD><TD>9.6. Optimization Gains (and Losses)</TD></TR>
<TR><TD COLSPAN=2>10. Future Directions</TD></TR>
<TR><TD COLSPAN=2>11. Contact Information</TD></TR>
</TABLE>
</BLOCKQUOTE>
<H2>1. Introduction</H2>
<P>
Berkeley SoftFloat is a software implementation of binary floating-point that
conforms to the IEEE Standard for Floating-Point Arithmetic.
The current release supports five binary formats: <NOBR>16-bit</NOBR>
half-precision, <NOBR>32-bit</NOBR> single-precision, <NOBR>64-bit</NOBR>
double-precision, <NOBR>80-bit</NOBR> double-extended-precision, and
<NOBR>128-bit</NOBR> quadruple-precision.
The following functions are supported for each format:
<UL>
<LI>
addition, subtraction, multiplication, division, and square root;
<LI>
fused multiply-add as defined by the IEEE Standard, except for
<NOBR>80-bit</NOBR> double-extended-precision;
<LI>
remainder as defined by the IEEE Standard;
<LI>
round to integral value;
<LI>
comparisons;
<LI>
conversions to/from other supported formats; and
<LI>
conversions to/from <NOBR>32-bit</NOBR> and <NOBR>64-bit</NOBR> integers,
signed and unsigned.
</UL>
All operations required by the original 1985 version of the IEEE Floating-Point
Standard are implemented, except for conversions to and from decimal.
</P>
<P>
This document gives information about the types defined and the routines
implemented by SoftFloat.
It does not attempt to define or explain the IEEE Floating-Point Standard.
Information about the standard is available elsewhere.
</P>
<P>
The current version of SoftFloat is <NOBR>Release 3d</NOBR>.
This release fixes bugs that were found in the square root functions for the
<NOBR>64-bit</NOBR>, <NOBR>80-bit</NOBR>, and <NOBR>128-bit</NOBR>
floating-point formats.
(Thanks to Alexei Sibidanov at the University of Victoria for reporting an
incorrect result.)
The bugs affected all prior <NOBR>Release-3</NOBR> versions of SoftFloat.
The flaw in the <NOBR>64-bit</NOBR> floating-point square root function was of
very minor impact, causing a <NOBR>1-ulp</NOBR> error (<NOBR>1 unit</NOBR> in
the last place) a few times out of a billion.
The bugs in the <NOBR>80-bit</NOBR> and <NOBR>128-bit</NOBR> square root
functions were more serious.
Although incorrect results again occurred only a few times out of a billion,
when they did occur a large portion of the less-significant bits could be
wrong.
</P>
<P>
<NOBR>Release 3d</NOBR> makes no changes to the SoftFloat library interface
compared to the previous <NOBR>Release 3c</NOBR>.
Since the original <NOBR>Release 3</NOBR>, the main changes to the interface
have been that <NOBR>Release 3b</NOBR> added support for the
<NOBR>16-bit</NOBR> half-precision format, and <NOBR>Release 3c</NOBR> added
optional support for a rarely used rounding mode, <I>round to odd</I>, also
known as <I>jamming</I>.
For more about the evolution of SoftFloat releases, see
<A HREF="SoftFloat-history.html"><NOBR><CODE>SoftFloat-history.html</CODE></NOBR></A>.
</P>
<P>
The functional interface of SoftFloat <NOBR>Release 3</NOBR> and later differs
in many details from the releases that came before.
For specifics of these differences, see <NOBR>section 9</NOBR> below,
<I>Changes from SoftFloat <NOBR>Release 2</NOBR></I>.
</P>
<H2>2. Limitations</H2>
<P>
SoftFloat assumes the computer has an addressable byte size of 8 or
<NOBR>16 bits</NOBR>.
(Nearly all computers in use today have <NOBR>8-bit</NOBR> bytes.)
</P>
<P>
SoftFloat is written in C and is designed to work with other C code.
The C compiler used must conform at a minimum to the 1989 ANSI standard for the
C language (same as the 1990 ISO standard) and must in addition support basic
arithmetic on <NOBR>64-bit</NOBR> integers.
Earlier releases of SoftFloat included implementations of <NOBR>32-bit</NOBR>
single-precision and <NOBR>64-bit</NOBR> double-precision floating-point that
did not require <NOBR>64-bit</NOBR> integers, but this option is not supported
starting with <NOBR>Release 3</NOBR>.
Since 1999, ISO standards for C have mandated compiler support for
<NOBR>64-bit</NOBR> integers.
A compiler conforming to the 1999 C Standard or later is recommended but not
strictly required.
</P>
<P>
Most operations not required by the original 1985 version of the IEEE
Floating-Point Standard but added in the 2008 version are not yet supported in
SoftFloat <NOBR>Release 3d</NOBR>.
</P>
<H2>3. Acknowledgments and License</H2>
<P>
The SoftFloat package was written by me, <NOBR>John R.</NOBR> Hauser.
<NOBR>Release 3</NOBR> of SoftFloat was a completely new implementation
supplanting earlier releases.
The project to create <NOBR>Release 3</NOBR> (now <NOBR>through 3d</NOBR>) was
done in the employ of the University of California, Berkeley, within the
Department of Electrical Engineering and Computer Sciences, first for the
Parallel Computing Laboratory (Par Lab) and then for the ASPIRE Lab.
The work was officially overseen by Prof. Krste Asanovic, with funding provided
by these sources:
<BLOCKQUOTE>
<TABLE>
<COL>
<COL WIDTH=10>
<COL>
<TR>
<TD VALIGN=TOP><NOBR>Par Lab:</NOBR></TD>
<TD></TD>
<TD>
Microsoft (Award #024263), Intel (Award #024894), and U.C. Discovery
(Award #DIG07-10227), with additional support from Par Lab affiliates Nokia,
NVIDIA, Oracle, and Samsung.
</TD>
</TR>
<TR>
<TD VALIGN=TOP><NOBR>ASPIRE Lab:</NOBR></TD>
<TD></TD>
<TD>
DARPA PERFECT program (Award #HR0011-12-2-0016), with additional support from
ASPIRE industrial sponsor Intel and ASPIRE affiliates Google, Nokia, NVIDIA,
Oracle, and Samsung.
</TD>
</TR>
</TABLE>
</BLOCKQUOTE>
</P>
<P>
The following applies to the whole of SoftFloat <NOBR>Release 3d</NOBR> as well
as to each source file individually.
</P>
<P>
Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
University of California.
All rights reserved.
</P>
<P>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
<OL>
<LI>
<P>
Redistributions of source code must retain the above copyright notice, this
list of conditions, and the following disclaimer.
</P>
<LI>
<P>
Redistributions in binary form must reproduce the above copyright notice, this
list of conditions, and the following disclaimer in the documentation and/or
other materials provided with the distribution.
</P>
<LI>
<P>
Neither the name of the University nor the names of its contributors may be
used to endorse or promote products derived from this software without specific
prior written permission.
</P>
</OL>
</P>
<P>
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS &ldquo;AS IS&rdquo;,
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED.
IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
</P>
<H2>4. Types and Functions</H2>
<P>
The types and functions of SoftFloat are declared in header file
<CODE>softfloat.h</CODE>.
</P>
<H3>4.1. Boolean and Integer Types</H3>
<P>
Header file <CODE>softfloat.h</CODE> depends on standard headers
<CODE>&lt;stdbool.h&gt;</CODE> and <CODE>&lt;stdint.h&gt;</CODE> to define type
<CODE>bool</CODE> and several integer types.
These standard headers have been part of the ISO C Standard Library since 1999.
With any recent compiler, they are likely to be supported, even if the compiler
does not claim complete conformance to the latest ISO C Standard.
For older or nonstandard compilers, a port of SoftFloat may have substitutes
for these headers.
Header <CODE>softfloat.h</CODE> depends only on the name <CODE>bool</CODE> from
<CODE>&lt;stdbool.h&gt;</CODE> and on these type names from
<CODE>&lt;stdint.h&gt;</CODE>:
<BLOCKQUOTE>
<PRE>
uint16_t
uint32_t
uint64_t
int32_t
int64_t
uint_fast8_t
uint_fast32_t
uint_fast64_t
int_fast32_t
int_fast64_t
</PRE>
</BLOCKQUOTE>
</P>
<H3>4.2. Floating-Point Types</H3>
<P>
The <CODE>softfloat.h</CODE> header defines five floating-point types:
<BLOCKQUOTE>
<TABLE CELLSPACING=0 CELLPADDING=0>
<TR>
<TD><CODE>float16_t</CODE></TD>
<TD><NOBR>16-bit</NOBR> half-precision binary format</TD>
</TR>
<TR>
<TD><CODE>float32_t</CODE></TD>
<TD><NOBR>32-bit</NOBR> single-precision binary format</TD>
</TR>
<TR>
<TD><CODE>float64_t</CODE></TD>
<TD><NOBR>64-bit</NOBR> double-precision binary format</TD>
</TR>
<TR>
<TD><CODE>extFloat80_t&nbsp;&nbsp;&nbsp;</CODE></TD>
<TD><NOBR>80-bit</NOBR> double-extended-precision binary format (old Intel or
Motorola format)</TD>
</TR>
<TR>
<TD><CODE>float128_t</CODE></TD>
<TD><NOBR>128-bit</NOBR> quadruple-precision binary format</TD>
</TR>
</TABLE>
</BLOCKQUOTE>
The non-extended types are each exactly the size specified:
<NOBR>16 bits</NOBR> for <CODE>float16_t</CODE>, <NOBR>32 bits</NOBR> for
<CODE>float32_t</CODE>, <NOBR>64 bits</NOBR> for <CODE>float64_t</CODE>, and
<NOBR>128 bits</NOBR> for <CODE>float128_t</CODE>.
Aside from these size requirements, the definitions of all these types may
differ for different ports of SoftFloat to specific systems.
A given port of SoftFloat may or may not define some of the floating-point
types as aliases for the C standard types <CODE>float</CODE>,
<CODE>double</CODE>, and <CODE>long</CODE> <CODE>double</CODE>.
</P>
<P>
Header file <CODE>softfloat.h</CODE> also defines a structure,
<CODE>struct</CODE> <CODE>extFloat80M</CODE>, for the representation of
<NOBR>80-bit</NOBR> double-extended-precision floating-point values in memory.
This structure is the same size as type <CODE>extFloat80_t</CODE> and contains
at least these two fields (not necessarily in this order):
<BLOCKQUOTE>
<PRE>
uint16_t signExp;
uint64_t signif;
</PRE>
</BLOCKQUOTE>
Field <CODE>signExp</CODE> contains the sign and exponent of the floating-point
value, with the sign in the most significant bit (<NOBR>bit 15</NOBR>) and the
encoded exponent in the other <NOBR>15 bits</NOBR>.
Field <CODE>signif</CODE> is the complete <NOBR>64-bit</NOBR> significand of
the floating-point value.
(In the usual encoding for <NOBR>80-bit</NOBR> extended floating-point, the
leading <NOBR>1 bit</NOBR> of normalized numbers is not implicit but is stored
in the most significant bit of the significand.)
</P>
<H3>4.3. Supported Floating-Point Functions</H3>
<P>
SoftFloat implements these arithmetic operations for its floating-point types:
<UL>
<LI>
conversions between any two floating-point formats;
<LI>
for each floating-point format, conversions to and from signed and unsigned
<NOBR>32-bit</NOBR> and <NOBR>64-bit</NOBR> integers;
<LI>
for each format, the usual addition, subtraction, multiplication, division, and
square root operations;
<LI>
for each format except <CODE>extFloat80_t</CODE>, the fused multiply-add
operation defined by the IEEE Standard;
<LI>
for each format, the floating-point remainder operation defined by the IEEE
Standard;
<LI>
for each format, a &ldquo;round to integer&rdquo; operation that rounds to the
nearest integer value in the same format; and
<LI>
comparisons between two values in the same floating-point format.
</UL>
</P>
<P>
The following operations required by the 2008 IEEE Floating-Point Standard are
not supported in SoftFloat <NOBR>Release 3d</NOBR>:
<UL>
<LI>
<B>nextUp</B>, <B>nextDown</B>, <B>minNum</B>, <B>maxNum</B>, <B>minNumMag</B>,
<B>maxNumMag</B>, <B>scaleB</B>, and <B>logB</B>;
<LI>
conversions between floating-point formats and decimal or hexadecimal character
sequences;
<LI>
all &ldquo;quiet-computation&rdquo; operations (<B>copy</B>, <B>negate</B>,
<B>abs</B>, and <B>copySign</B>, which all involve only simple copying and/or
manipulation of the floating-point sign bit); and
<LI>
all &ldquo;non-computational&rdquo; operations other than <B>isSignaling</B>
(which is supported).
</UL>
</P>
<H3>4.4. Non-canonical Representations in <CODE>extFloat80_t</CODE></H3>
<P>
Because the <NOBR>80-bit</NOBR> double-extended-precision format,
<CODE>extFloat80_t</CODE>, stores an explicit leading significand bit, many
finite floating-point numbers are encodable in this type in multiple equivalent
forms.
Of these multiple encodings, there is always a unique one with the least
encoded exponent value, and this encoding is considered the <I>canonical</I>
representation of the floating-point number.
Any other equivalent representations (having a higher encoded exponent value)
are <I>non-canonical</I>.
For a value in the subnormal range (including zero), the canonical
representation always has an encoded exponent of zero and a leading significand
bit <NOBR>of 0</NOBR>.
For finite values outside the subnormal range, the canonical representation
always has an encoded exponent that is nonzero and a leading significand bit
<NOBR>of 1</NOBR>.
</P>
<P>
For an infinity or NaN, the leading significand bit is similarly expected to
<NOBR>be 1</NOBR>.
An infinity or NaN with a leading significand bit <NOBR>of 0</NOBR> is again
considered non-canonical.
Hence, altogether, to be canonical, a value of type <CODE>extFloat80_t</CODE>
must have a leading significand bit <NOBR>of 1</NOBR>, unless the value is
subnormal or zero, in which case the leading significand bit and the encoded
exponent must both be zero.
</P>
<P>
SoftFloat's functions are not guaranteed to operate as expected when inputs of
type <CODE>extFloat80_t</CODE> are non-canonical.
Assuming all of a function&rsquo;s <CODE>extFloat80_t</CODE> inputs (if any)
are canonical, function outputs of type <CODE>extFloat80_t</CODE> will always
be canonical.
</P>
<H3>4.5. Conventions for Passing Arguments and Results</H3>
<P>
Values that are at most <NOBR>64 bits</NOBR> in size (i.e., not the
<NOBR>80-bit</NOBR> or <NOBR>128-bit</NOBR> floating-point formats) are in all
cases passed as function arguments by value.
Likewise, when an output of a function is no more than <NOBR>64 bits</NOBR>, it
is always returned directly as the function result.
Thus, for example, the SoftFloat function for adding two <NOBR>64-bit</NOBR>
floating-point values has this simple signature:
<BLOCKQUOTE>
<CODE>float64_t f64_add( float64_t, float64_t );</CODE>
</BLOCKQUOTE>
</P>
<P>
The story is more complex when function inputs and outputs are
<NOBR>80-bit</NOBR> and <NOBR>128-bit</NOBR> floating-point.
For these types, SoftFloat always provides a function that passes these larger
values into or out of the function indirectly, via pointers.
For example, for adding two <NOBR>128-bit</NOBR> floating-point values,
SoftFloat supplies this function:
<BLOCKQUOTE>
<CODE>void f128M_add( const float128_t *, const float128_t *, float128_t * );</CODE>
</BLOCKQUOTE>
The first two arguments point to the values to be added, and the last argument
points to the location where the sum will be stored.
The <CODE>M</CODE> in the name <CODE>f128M_add</CODE> is mnemonic for the fact
that the <NOBR>128-bit</NOBR> inputs and outputs are &ldquo;in memory&rdquo;,
pointed to by pointer arguments.
</P>
<P>
All ports of SoftFloat implement these <I>pass-by-pointer</I> functions for
types <CODE>extFloat80_t</CODE> and <CODE>float128_t</CODE>.
At the same time, SoftFloat ports may also implement alternate versions of
these same functions that pass <CODE>extFloat80_t</CODE> and
<CODE>float128_t</CODE> by value, like the smaller formats.
Thus, besides the function with name <CODE>f128M_add</CODE> shown above, a
SoftFloat port may also supply an equivalent function with this signature:
<BLOCKQUOTE>
<CODE>float128_t f128_add( float128_t, float128_t );</CODE>
</BLOCKQUOTE>
</P>
<P>
As a general rule, on computers where the machine word size is
<NOBR>32 bits</NOBR> or smaller, only the pass-by-pointer versions of functions
(e.g., <CODE>f128M_add</CODE>) are provided for types <CODE>extFloat80_t</CODE>
and <CODE>float128_t</CODE>, because passing such large types directly can have
significant extra cost.
On computers where the word size is <NOBR>64 bits</NOBR> or larger, both
function versions (<CODE>f128M_add</CODE> and <CODE>f128_add</CODE>) are
provided, because the cost of passing by value is then more reasonable.
Applications that must be portable accross both classes of computers must use
the pointer-based functions, as these are always implemented.
However, if it is known that SoftFloat includes the by-value functions for all
platforms of interest, programmers can use whichever version they prefer.
</P>
<H2>5. Reserved Names</H2>
<P>
In addition to the variables and functions documented here, SoftFloat defines
some symbol names for its own private use.
These private names always begin with the prefix
&lsquo;<CODE>softfloat_</CODE>&rsquo;.
When a program includes header <CODE>softfloat.h</CODE> or links with the
SoftFloat library, all names with prefix &lsquo;<CODE>softfloat_</CODE>&rsquo;
are reserved for possible use by SoftFloat.
Applications that use SoftFloat should not define their own names with this
prefix, and should reference only such names as are documented.
</P>
<H2>6. Mode Variables</H2>
<P>
The following global variables control rounding mode, underflow detection, and
the <NOBR>80-bit</NOBR> extended format&rsquo;s rounding precision:
<BLOCKQUOTE>
<CODE>softfloat_roundingMode</CODE><BR>
<CODE>softfloat_detectTininess</CODE><BR>
<CODE>extF80_roundingPrecision</CODE>
</BLOCKQUOTE>
These mode variables are covered in the next several subsections.
For some SoftFloat ports, these variables may be <I>per-thread</I> (declared
<CODE>thread_local</CODE>), meaning that different execution threads have their
own separate copies of the variables.
</P>
<H3>6.1. Rounding Mode</H3>
<P>
All five rounding modes defined by the 2008 IEEE Floating-Point Standard are
implemented for all operations that require rounding.
Some ports of SoftFloat may also implement the <I>round-to-odd</I> mode.
</P>
<P>
The rounding mode is selected by the global variable
<BLOCKQUOTE>
<CODE>uint_fast8_t softfloat_roundingMode;</CODE>
</BLOCKQUOTE>
This variable may be set to one of the values
<BLOCKQUOTE>
<TABLE CELLSPACING=0 CELLPADDING=0>
<TR>
<TD><CODE>softfloat_round_near_even</CODE></TD>
<TD>round to nearest, with ties to even</TD>
</TR>
<TR>
<TD><CODE>softfloat_round_near_maxMag&nbsp;&nbsp;</CODE></TD>
<TD>round to nearest, with ties to maximum magnitude (away from zero)</TD>
</TR>
<TR>
<TD><CODE>softfloat_round_minMag</CODE></TD>
<TD>round to minimum magnitude (toward zero)</TD>
</TR>
<TR>
<TD><CODE>softfloat_round_min</CODE></TD>
<TD>round to minimum (down)</TD>
</TR>
<TR>
<TD><CODE>softfloat_round_max</CODE></TD>
<TD>round to maximum (up)</TD>
</TR>
<TR>
<TD><CODE>softfloat_round_odd</CODE></TD>
<TD>round to odd (jamming), if supported by the SoftFloat port</TD>
</TR>
</TABLE>
</BLOCKQUOTE>
Variable <CODE>softfloat_roundingMode</CODE> is initialized to
<CODE>softfloat_round_near_even</CODE>.
</P>
<P>
If supported, mode <CODE>softfloat_round_odd</CODE> first rounds a
floating-point result to minimum magnitude, the same as
<CODE>softfloat_round_minMag</CODE>, and then, if the result is inexact, the
least-significant bit of the result is set <NOBR>to 1</NOBR>.
This rounding mode is also known as <EM>jamming</EM>.
As a special case, when <CODE>softfloat_round_odd</CODE> is the rounding mode
for a function that rounds to an integer value (either conversion to an integer
format or a &lsquo;<CODE>roundToInt</CODE>&rsquo; function), rounding is the
same as <CODE>softfloat_round_minMag</CODE>, without any change to the
least-significant integer bit.
</P>
<H3>6.2. Underflow Detection</H3>
<P>
In the terminology of the IEEE Standard, SoftFloat can detect tininess for
underflow either before or after rounding.
The choice is made by the global variable
<BLOCKQUOTE>
<CODE>uint_fast8_t softfloat_detectTininess;</CODE>
</BLOCKQUOTE>
which can be set to either
<BLOCKQUOTE>
<CODE>softfloat_tininess_beforeRounding</CODE><BR>
<CODE>softfloat_tininess_afterRounding</CODE>
</BLOCKQUOTE>
Detecting tininess after rounding is usually better because it results in fewer
spurious underflow signals.
The other option is provided for compatibility with some systems.
Like most systems (and as required by the newer 2008 IEEE Standard), SoftFloat
always detects loss of accuracy for underflow as an inexact result.
</P>
<H3>6.3. Rounding Precision for the <NOBR>80-Bit</NOBR> Extended Format</H3>
<P>
For <CODE>extFloat80_t</CODE> only, the rounding precision of the basic
arithmetic operations is controlled by the global variable
<BLOCKQUOTE>
<CODE>uint_fast8_t extF80_roundingPrecision;</CODE>
</BLOCKQUOTE>
The operations affected are:
<BLOCKQUOTE>
<CODE>extF80_add</CODE><BR>
<CODE>extF80_sub</CODE><BR>
<CODE>extF80_mul</CODE><BR>
<CODE>extF80_div</CODE><BR>
<CODE>extF80_sqrt</CODE>
</BLOCKQUOTE>
When <CODE>extF80_roundingPrecision</CODE> is set to its default value of 80,
these operations are rounded to the full precision of the <NOBR>80-bit</NOBR>
double-extended-precision format, like occurs for other formats.
Setting <CODE>extF80_roundingPrecision</CODE> to 32 or to 64 causes the
operations listed to be rounded to <NOBR>32-bit</NOBR> precision (equivalent to
<CODE>float32_t</CODE>) or to <NOBR>64-bit</NOBR> precision (equivalent to
<CODE>float64_t</CODE>), respectively.
When rounding to reduced precision, additional bits in the result significand
beyond the rounding point are set to zero.
The consequences of setting <CODE>extF80_roundingPrecision</CODE> to a value
other than 32, 64, or 80 is not specified.
Operations other than the ones listed above are not affected by
<CODE>extF80_roundingPrecision</CODE>.
</P>
<H2>7. Exceptions and Exception Flags</H2>
<P>
All five exception flags required by the IEEE Floating-Point Standard are
implemented.
Each flag is stored as a separate bit in the global variable
<BLOCKQUOTE>
<CODE>uint_fast8_t softfloat_exceptionFlags;</CODE>
</BLOCKQUOTE>
The positions of the exception flag bits within this variable are determined by
the bit masks
<BLOCKQUOTE>
<CODE>softfloat_flag_inexact</CODE><BR>
<CODE>softfloat_flag_underflow</CODE><BR>
<CODE>softfloat_flag_overflow</CODE><BR>
<CODE>softfloat_flag_infinite</CODE><BR>
<CODE>softfloat_flag_invalid</CODE>
</BLOCKQUOTE>
Variable <CODE>softfloat_exceptionFlags</CODE> is initialized to all zeros,
meaning no exceptions.
</P>
<P>
For some SoftFloat ports, <CODE>softfloat_exceptionFlags</CODE> may be
<I>per-thread</I> (declared <CODE>thread_local</CODE>), meaning that different
execution threads have their own separate instances of it.
</P>
<P>
An individual exception flag can be cleared with the statement
<BLOCKQUOTE>
<CODE>softfloat_exceptionFlags &= ~softfloat_flag_&lt;<I>exception</I>&gt;;</CODE>
</BLOCKQUOTE>
where <CODE>&lt;<I>exception</I>&gt;</CODE> is the appropriate name.
To raise a floating-point exception, function <CODE>softfloat_raiseFlags</CODE>
should normally be used.
</P>
<P>
When SoftFloat detects an exception other than <I>inexact</I>, it calls
<CODE>softfloat_raiseFlags</CODE>.
The default version of this function simply raises the corresponding exception
flags.
Particular ports of SoftFloat may support alternate behavior, such as exception
traps, by modifying the default <CODE>softfloat_raiseFlags</CODE>.
A program may also supply its own <CODE>softfloat_raiseFlags</CODE> function to
override the one from the SoftFloat library.
</P>
<P>
Because inexact results occur frequently under most circumstances (and thus are
hardly exceptional), SoftFloat does not ordinarily call
<CODE>softfloat_raiseFlags</CODE> for <I>inexact</I> exceptions.
It does always raise the <I>inexact</I> exception flag as required.
</P>
<H2>8. Function Details</H2>
<P>
In this section, <CODE>&lt;<I>float</I>&gt;</CODE> appears in function names as
a substitute for one of these abbreviations:
<BLOCKQUOTE>
<TABLE CELLSPACING=0 CELLPADDING=0>
<TR>
<TD><CODE>f16</CODE></TD>
<TD>indicates <CODE>float16_t</CODE>, passed by value</TD>
</TR>
<TR>
<TD><CODE>f32</CODE></TD>
<TD>indicates <CODE>float32_t</CODE>, passed by value</TD>
</TR>
<TR>
<TD><CODE>f64</CODE></TD>
<TD>indicates <CODE>float64_t</CODE>, passed by value</TD>
</TR>
<TR>
<TD><CODE>extF80M&nbsp;&nbsp;&nbsp;</CODE></TD>
<TD>indicates <CODE>extFloat80_t</CODE>, passed indirectly via pointers</TD>
</TR>
<TR>
<TD><CODE>extF80</CODE></TD>
<TD>indicates <CODE>extFloat80_t</CODE>, passed by value</TD>
</TR>
<TR>
<TD><CODE>f128M</CODE></TD>
<TD>indicates <CODE>float128_t</CODE>, passed indirectly via pointers</TD>
</TR>
<TR>
<TD><CODE>f128</CODE></TD>
<TD>indicates <CODE>float128_t</CODE>, passed by value</TD>
</TR>
</TABLE>
</BLOCKQUOTE>
The circumstances under which values of floating-point types
<CODE>extFloat80_t</CODE> and <CODE>float128_t</CODE> may be passed either by
value or indirectly via pointers was discussed earlier in
<NOBR>section 4.5</NOBR>, <I>Conventions for Passing Arguments and Results</I>.
</P>
<H3>8.1. Conversions from Integer to Floating-Point</H3>
<P>
All conversions from a <NOBR>32-bit</NOBR> or <NOBR>64-bit</NOBR> integer,
signed or unsigned, to a floating-point format are supported.
Functions performing these conversions have these names:
<BLOCKQUOTE>
<CODE>ui32_to_&lt;<I>float</I>&gt;</CODE><BR>
<CODE>ui64_to_&lt;<I>float</I>&gt;</CODE><BR>
<CODE>i32_to_&lt;<I>float</I>&gt;</CODE><BR>
<CODE>i64_to_&lt;<I>float</I>&gt;</CODE>
</BLOCKQUOTE>
Conversions from <NOBR>32-bit</NOBR> integers to <NOBR>64-bit</NOBR>
double-precision and larger formats are always exact, and likewise conversions
from <NOBR>64-bit</NOBR> integers to <NOBR>80-bit</NOBR>
double-extended-precision and <NOBR>128-bit</NOBR> quadruple-precision are also
always exact.
</P>
<P>
Each conversion function takes one input of the appropriate type and generates
one output.
The following illustrates the signatures of these functions in cases when the
floating-point result is passed either by value or via pointers:
<BLOCKQUOTE>
<PRE>
float64_t i32_to_f64( int32_t <I>a</I> );
</PRE>
<PRE>
void i32_to_f128M( int32_t <I>a</I>, float128_t *<I>destPtr</I> );
</PRE>
</BLOCKQUOTE>
</P>
<H3>8.2. Conversions from Floating-Point to Integer</H3>
<P>
Conversions from a floating-point format to a <NOBR>32-bit</NOBR> or
<NOBR>64-bit</NOBR> integer, signed or unsigned, are supported with these
functions:
<BLOCKQUOTE>
<CODE>&lt;<I>float</I>&gt;_to_ui32</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_to_ui64</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_to_i32</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_to_i64</CODE>
</BLOCKQUOTE>
The functions have signatures as follows, depending on whether the
floating-point input is passed by value or via pointers:
<BLOCKQUOTE>
<PRE>
int_fast32_t f64_to_i32( float64_t <I>a</I>, uint_fast8_t <I>roundingMode</I>, bool <I>exact</I> );
</PRE>
<PRE>
int_fast32_t
f128M_to_i32( const float128_t *<I>aPtr</I>, uint_fast8_t <I>roundingMode</I>, bool <I>exact</I> );
</PRE>
</BLOCKQUOTE>
</P>
<P>
The <CODE><I>roundingMode</I></CODE> argument specifies the rounding mode for
the conversion.
The variable that usually indicates rounding mode,
<CODE>softfloat_roundingMode</CODE>, is ignored.
If <CODE><I>roundingMode</I></CODE> is <CODE>softfloat_round_odd</CODE>,
rounding is to minimum magnitude, the same as
<CODE>softfloat_round_minMag</CODE>, rather than to an odd integer.
</P>
<P>
Argument <CODE><I>exact</I></CODE> determines whether the <I>inexact</I>
exception flag is raised if the conversion is not exact.
If <CODE><I>exact</I></CODE> is <CODE>true</CODE>, the <I>inexact</I> flag may
be raised;
otherwise, it will not be, even if the conversion is inexact.
</P>
<P>
A conversion from floating-point to integer format raises the <I>invalid</I>
exception if the source value cannot be rounded to a representable integer of
the desired size (32 or 64 bits).
In such circumstances, the integer result returned is determined by the
particular port of SoftFloat, although typically this value will be either the
maximum or minimum value of the integer format.
The functions that convert to integer types never raise the floating-point
<I>overflow</I> exception.
</P>
<P>
Because languages such <NOBR>as C</NOBR> require that conversions to integers
be rounded toward zero, the following functions are provided for improved speed
and convenience:
<BLOCKQUOTE>
<CODE>&lt;<I>float</I>&gt;_to_ui32_r_minMag</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_to_ui64_r_minMag</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_to_i32_r_minMag</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_to_i64_r_minMag</CODE>
</BLOCKQUOTE>
These functions round only toward zero (to minimum magnitude).
The signatures for these functions are the same as above without the redundant
<CODE><I>roundingMode</I></CODE> argument:
<BLOCKQUOTE>
<PRE>
int_fast32_t f64_to_i32_r_minMag( float64_t <I>a</I>, bool <I>exact</I> );
</PRE>
<PRE>
int_fast32_t f128M_to_i32_r_minMag( const float128_t *<I>aPtr</I>, bool <I>exact</I> );
</PRE>
</BLOCKQUOTE>
</P>
<H3>8.3. Conversions Among Floating-Point Types</H3>
<P>
Conversions between floating-point formats are done by functions with these
names:
<BLOCKQUOTE>
<CODE>&lt;<I>float</I>&gt;_to_&lt;<I>float</I>&gt;</CODE>
</BLOCKQUOTE>
All combinations of source and result type are supported where the source and
result are different formats.
There are four different styles of signature for these functions, depending on
whether the input and the output floating-point values are passed by value or
via pointers:
<BLOCKQUOTE>
<PRE>
float32_t f64_to_f32( float64_t <I>a</I> );
</PRE>
<PRE>
float32_t f128M_to_f32( const float128_t *<I>aPtr</I> );
</PRE>
<PRE>
void f32_to_f128M( float32_t <I>a</I>, float128_t *<I>destPtr</I> );
</PRE>
<PRE>
void extF80M_to_f128M( const extFloat80_t *<I>aPtr</I>, float128_t *<I>destPtr</I> );
</PRE>
</BLOCKQUOTE>
</P>
<P>
Conversions from a smaller to a larger floating-point format are always exact
and so require no rounding.
</P>
<H3>8.4. Basic Arithmetic Functions</H3>
<P>
The following basic arithmetic functions are provided:
<BLOCKQUOTE>
<CODE>&lt;<I>float</I>&gt;_add</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_sub</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_mul</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_div</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_sqrt</CODE>
</BLOCKQUOTE>
Each floating-point operation takes two operands, except for <CODE>sqrt</CODE>
(square root) which takes only one.
The operands and result are all of the same floating-point format.
Signatures for these functions take the following forms:
<BLOCKQUOTE>
<PRE>
float64_t f64_add( float64_t <I>a</I>, float64_t <I>b</I> );
</PRE>
<PRE>
void
f128M_add(
const float128_t *<I>aPtr</I>, const float128_t *<I>bPtr</I>, float128_t *<I>destPtr</I> );
</PRE>
<PRE>
float64_t f64_sqrt( float64_t <I>a</I> );
</PRE>
<PRE>
void f128M_sqrt( const float128_t *<I>aPtr</I>, float128_t *<I>destPtr</I> );
</PRE>
</BLOCKQUOTE>
When floating-point values are passed indirectly through pointers, arguments
<CODE><I>aPtr</I></CODE> and <CODE><I>bPtr</I></CODE> point to the input
operands, and the last argument, <CODE><I>destPtr</I></CODE>, points to the
location where the result is stored.
</P>
<P>
Rounding of the <NOBR>80-bit</NOBR> double-extended-precision
(<CODE>extFloat80_t</CODE>) functions is affected by variable
<CODE>extF80_roundingPrecision</CODE>, as explained earlier in
<NOBR>section 6.3</NOBR>,
<I>Rounding Precision for the <NOBR>80-Bit</NOBR> Extended Format</I>.
</P>
<H3>8.5. Fused Multiply-Add Functions</H3>
<P>
The 2008 version of the IEEE Floating-Point Standard defines a <I>fused
multiply-add</I> operation that does a combined multiplication and addition
with only a single rounding.
SoftFloat implements fused multiply-add with functions
<BLOCKQUOTE>
<CODE>&lt;<I>float</I>&gt;_mulAdd</CODE>
</BLOCKQUOTE>
Unlike other operations, fused multiple-add is not supported for the
<NOBR>80-bit</NOBR> double-extended-precision format,
<CODE>extFloat80_t</CODE>.
</P>
<P>
Depending on whether floating-point values are passed by value or via pointers,
the fused multiply-add functions have signatures of these forms:
<BLOCKQUOTE>
<PRE>
float64_t f64_mulAdd( float64_t <I>a</I>, float64_t <I>b</I>, float64_t <I>c</I> );
</PRE>
<PRE>
void
f128M_mulAdd(
const float128_t *<I>aPtr</I>,
const float128_t *<I>bPtr</I>,
const float128_t *<I>cPtr</I>,
float128_t *<I>destPtr</I>
);
</PRE>
</BLOCKQUOTE>
The functions compute
<NOBR>(<CODE><I>a</I></CODE> &times; <CODE><I>b</I></CODE>)
+ <CODE><I>c</I></CODE></NOBR>
with a single rounding.
When floating-point values are passed indirectly through pointers, arguments
<CODE><I>aPtr</I></CODE>, <CODE><I>bPtr</I></CODE>, and
<CODE><I>cPtr</I></CODE> point to operands <CODE><I>a</I></CODE>,
<CODE><I>b</I></CODE>, and <CODE><I>c</I></CODE> respectively, and
<CODE><I>destPtr</I></CODE> points to the location where the result is stored.
</P>
<P>
If one of the multiplication operands <CODE><I>a</I></CODE> and
<CODE><I>b</I></CODE> is infinite and the other is zero, these functions raise
the invalid exception even if operand <CODE><I>c</I></CODE> is a quiet NaN.
</P>
<H3>8.6. Remainder Functions</H3>
<P>
For each format, SoftFloat implements the remainder operation defined by the
IEEE Floating-Point Standard.
The remainder functions have names
<BLOCKQUOTE>
<CODE>&lt;<I>float</I>&gt;_rem</CODE>
</BLOCKQUOTE>
Each remainder operation takes two floating-point operands of the same format
and returns a result in the same format.
Depending on whether floating-point values are passed by value or via pointers,
the remainder functions have signatures of these forms:
<BLOCKQUOTE>
<PRE>
float64_t f64_rem( float64_t <I>a</I>, float64_t <I>b</I> );
</PRE>
<PRE>
void
f128M_rem(
const float128_t *<I>aPtr</I>, const float128_t *<I>bPtr</I>, float128_t *<I>destPtr</I> );
</PRE>
</BLOCKQUOTE>
When floating-point values are passed indirectly through pointers, arguments
<CODE><I>aPtr</I></CODE> and <CODE><I>bPtr</I></CODE> point to operands
<CODE><I>a</I></CODE> and <CODE><I>b</I></CODE> respectively, and
<CODE><I>destPtr</I></CODE> points to the location where the result is stored.
</P>
<P>
The IEEE Standard remainder operation computes the value
<NOBR><CODE><I>a</I></CODE>
&minus; <I>n</I> &times; <CODE><I>b</I></CODE></NOBR>,
where <I>n</I> is the integer closest to
<NOBR><CODE><I>a</I></CODE> &divide; <CODE><I>b</I></CODE></NOBR>.
If <NOBR><CODE><I>a</I></CODE> &divide; <CODE><I>b</I></CODE></NOBR> is exactly
halfway between two integers, <I>n</I> is the <EM>even</EM> integer closest to
<NOBR><CODE><I>a</I></CODE> &divide; <CODE><I>b</I></CODE></NOBR>.
The IEEE Standard&rsquo;s remainder operation is always exact and so requires
no rounding.
</P>
<P>
Depending on the relative magnitudes of the operands, the remainder
functions can take considerably longer to execute than the other SoftFloat
functions.
This is an inherent characteristic of the remainder operation itself and is not
a flaw in the SoftFloat implementation.
</P>
<H3>8.7. Round-to-Integer Functions</H3>
<P>
For each format, SoftFloat implements the round-to-integer operation specified
by the IEEE Floating-Point Standard.
These functions are named
<BLOCKQUOTE>
<CODE>&lt;<I>float</I>&gt;_roundToInt</CODE>
</BLOCKQUOTE>
Each round-to-integer operation takes a single floating-point operand.
This operand is rounded to an integer according to a specified rounding mode,
and the resulting integer value is returned in the same floating-point format.
(Note that the result is not an integer type.)
</P>
<P>
The signatures of the round-to-integer functions are similar to those for
conversions to an integer type:
<BLOCKQUOTE>
<PRE>
float64_t f64_roundToInt( float64_t <I>a</I>, uint_fast8_t <I>roundingMode</I>, bool <I>exact</I> );
</PRE>
<PRE>
void
f128M_roundToInt(
const float128_t *<I>aPtr</I>,
uint_fast8_t <I>roundingMode</I>,
bool <I>exact</I>,
float128_t *<I>destPtr</I>
);
</PRE>
</BLOCKQUOTE>
When floating-point values are passed indirectly through pointers,
<CODE><I>aPtr</I></CODE> points to the input operand and
<CODE><I>destPtr</I></CODE> points to the location where the result is stored.
</P>
<P>
The <CODE><I>roundingMode</I></CODE> argument specifies the rounding mode to
apply.
The variable that usually indicates rounding mode,
<CODE>softfloat_roundingMode</CODE>, is ignored.
If <CODE><I>roundingMode</I></CODE> is <CODE>softfloat_round_odd</CODE>,
rounding is to minimum magnitude, the same as
<CODE>softfloat_round_minMag</CODE>, rather than to an odd integer value.
</P>
<P>
Argument <CODE><I>exact</I></CODE> determines whether the <I>inexact</I>
exception flag is raised if the conversion is not exact.
If <CODE><I>exact</I></CODE> is <CODE>true</CODE>, the <I>inexact</I> flag may
be raised;
otherwise, it will not be, even if the conversion is inexact.
</P>
<H3>8.8. Comparison Functions</H3>
<P>
For each format, the following floating-point comparison functions are
provided:
<BLOCKQUOTE>
<CODE>&lt;<I>float</I>&gt;_eq</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_le</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_lt</CODE>
</BLOCKQUOTE>
Each comparison takes two operands of the same type and returns a Boolean.
The abbreviation <CODE>eq</CODE> stands for &ldquo;equal&rdquo; (=);
<CODE>le</CODE> stands for &ldquo;less than or equal&rdquo; (&le;);
and <CODE>lt</CODE> stands for &ldquo;less than&rdquo; (&lt;).
Depending on whether the floating-point operands are passed by value or via
pointers, the comparison functions have signatures of these forms:
<BLOCKQUOTE>
<PRE>
bool f64_eq( float64_t <I>a</I>, float64_t <I>b</I> );
</PRE>
<PRE>
bool f128M_eq( const float128_t *<I>aPtr</I>, const float128_t *<I>bPtr</I> );
</PRE>
</BLOCKQUOTE>
</P>
<P>
The usual greater-than (&gt;), greater-than-or-equal (&ge;), and not-equal
(&ne;) comparisons are easily obtained from the functions provided.
The not-equal function is just the logical complement of the equal function.
The greater-than-or-equal function is identical to the less-than-or-equal
function with the arguments in reverse order, and likewise the greater-than
function is identical to the less-than function with the arguments reversed.
</P>
<P>
The IEEE Floating-Point Standard specifies that the less-than-or-equal and
less-than comparisons by default raise the <I>invalid</I> exception if either
operand is any kind of NaN.
Equality comparisons, on the other hand, are defined by default to raise the
<I>invalid</I> exception only for signaling NaNs, not quiet NaNs.
For completeness, SoftFloat provides these complementary functions:
<BLOCKQUOTE>
<CODE>&lt;<I>float</I>&gt;_eq_signaling</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_le_quiet</CODE><BR>
<CODE>&lt;<I>float</I>&gt;_lt_quiet</CODE>
</BLOCKQUOTE>
The <CODE>signaling</CODE> equality comparisons are identical to the default
equality comparisons except that the <I>invalid</I> exception is raised for any
NaN input, not just for signaling NaNs.
Similarly, the <CODE>quiet</CODE> comparison functions are identical to their
default counterparts except that the <I>invalid</I> exception is not raised for
quiet NaNs.
</P>
<H3>8.9. Signaling NaN Test Functions</H3>
<P>
Functions for testing whether a floating-point value is a signaling NaN are
provided with these names:
<BLOCKQUOTE>
<CODE>&lt;<I>float</I>&gt;_isSignalingNaN</CODE>
</BLOCKQUOTE>
The functions take one floating-point operand and return a Boolean indicating
whether the operand is a signaling NaN.
Accordingly, the functions have the forms
<BLOCKQUOTE>
<PRE>
bool f64_isSignalingNaN( float64_t <I>a</I> );
</PRE>
<PRE>
bool f128M_isSignalingNaN( const float128_t *<I>aPtr</I> );
</PRE>
</BLOCKQUOTE>
</P>
<H3>8.10. Raise-Exception Function</H3>
<P>
SoftFloat provides a single function for raising floating-point exceptions:
<BLOCKQUOTE>
<PRE>
void softfloat_raiseFlags( uint_fast8_t <I>exceptions</I> );
</PRE>
</BLOCKQUOTE>
The <CODE><I>exceptions</I></CODE> argument is a mask indicating the set of
exceptions to raise.
(See earlier section 7, <I>Exceptions and Exception Flags</I>.)
In addition to setting the specified exception flags in variable
<CODE>softfloat_exceptionFlags</CODE>, the <CODE>softfloat_raiseFlags</CODE>
function may cause a trap or abort appropriate for the current system.
</P>
<H2>9. Changes from SoftFloat <NOBR>Release 2</NOBR></H2>
<P>
Apart from a change in the legal use license, <NOBR>Release 3</NOBR> of
SoftFloat introduced numerous technical differences compared to earlier
releases.
</P>
<H3>9.1. Name Changes</H3>
<P>
The most obvious and pervasive difference compared to <NOBR>Release 2</NOBR>
is that the names of most functions and variables have changed, even when the
behavior has not.
First, the floating-point types, the mode variables, the exception flags
variable, the function to raise exceptions, and various associated constants
have been renamed as follows:
<BLOCKQUOTE>
<TABLE>
<TR>
<TD>old name, Release 2:</TD>
<TD>new name, Release 3:</TD>
</TR>
<TR>
<TD><CODE>float32</CODE></TD>
<TD><CODE>float32_t</CODE></TD>
</TR>
<TR>
<TD><CODE>float64</CODE></TD>
<TD><CODE>float64_t</CODE></TD>
</TR>
<TR>
<TD><CODE>floatx80</CODE></TD>
<TD><CODE>extFloat80_t</CODE></TD>
</TR>
<TR>
<TD><CODE>float128</CODE></TD>
<TD><CODE>float128_t</CODE></TD>
</TR>
<TR>
<TD><CODE>float_rounding_mode</CODE></TD>
<TD><CODE>softfloat_roundingMode</CODE></TD>
</TR>
<TR>
<TD><CODE>float_round_nearest_even</CODE></TD>
<TD><CODE>softfloat_round_near_even</CODE></TD>
</TR>
<TR>
<TD><CODE>float_round_to_zero</CODE></TD>
<TD><CODE>softfloat_round_minMag</CODE></TD>
</TR>
<TR>
<TD><CODE>float_round_down</CODE></TD>
<TD><CODE>softfloat_round_min</CODE></TD>
</TR>
<TR>
<TD><CODE>float_round_up</CODE></TD>
<TD><CODE>softfloat_round_max</CODE></TD>
</TR>
<TR>
<TD><CODE>float_detect_tininess</CODE></TD>
<TD><CODE>softfloat_detectTininess</CODE></TD>
</TR>
<TR>
<TD><CODE>float_tininess_before_rounding&nbsp;&nbsp;&nbsp;&nbsp;</CODE></TD>
<TD><CODE>softfloat_tininess_beforeRounding</CODE></TD>
</TR>
<TR>
<TD><CODE>float_tininess_after_rounding</CODE></TD>
<TD><CODE>softfloat_tininess_afterRounding</CODE></TD>
</TR>
<TR>
<TD><CODE>floatx80_rounding_precision</CODE></TD>
<TD><CODE>extF80_roundingPrecision</CODE></TD>
</TR>
<TR>
<TD><CODE>float_exception_flags</CODE></TD>
<TD><CODE>softfloat_exceptionFlags</CODE></TD>
</TR>
<TR>
<TD><CODE>float_flag_inexact</CODE></TD>
<TD><CODE>softfloat_flag_inexact</CODE></TD>
</TR>
<TR>
<TD><CODE>float_flag_underflow</CODE></TD>
<TD><CODE>softfloat_flag_underflow</CODE></TD>
</TR>
<TR>
<TD><CODE>float_flag_overflow</CODE></TD>
<TD><CODE>softfloat_flag_overflow</CODE></TD>
</TR>
<TR>
<TD><CODE>float_flag_divbyzero</CODE></TD>
<TD><CODE>softfloat_flag_infinite</CODE></TD>
</TR>
<TR>
<TD><CODE>float_flag_invalid</CODE></TD>
<TD><CODE>softfloat_flag_invalid</CODE></TD>
</TR>
<TR>
<TD><CODE>float_raise</CODE></TD>
<TD><CODE>softfloat_raiseFlags</CODE></TD>
</TR>
</TABLE>
</BLOCKQUOTE>
</P>
<P>
Furthermore, <NOBR>Release 3</NOBR> adopted the following new abbreviations for
function names:
<BLOCKQUOTE>
<TABLE>
<TR>
<TD>used in names in Release 2:<CODE>&nbsp;&nbsp;&nbsp;&nbsp;</CODE></TD>
<TD>used in names in Release 3:</TD>
</TR>
<TR> <TD><CODE>int32</CODE></TD> <TD><CODE>i32</CODE></TD> </TR>
<TR> <TD><CODE>int64</CODE></TD> <TD><CODE>i64</CODE></TD> </TR>
<TR> <TD><CODE>float32</CODE></TD> <TD><CODE>f32</CODE></TD> </TR>
<TR> <TD><CODE>float64</CODE></TD> <TD><CODE>f64</CODE></TD> </TR>
<TR> <TD><CODE>floatx80</CODE></TD> <TD><CODE>extF80</CODE></TD> </TR>
<TR> <TD><CODE>float128</CODE></TD> <TD><CODE>f128</CODE></TD> </TR>
</TABLE>
</BLOCKQUOTE>
Thus, for example, the function to add two <NOBR>32-bit</NOBR> floating-point
numbers, previously called <CODE>float32_add</CODE> in <NOBR>Release 2</NOBR>,
is now <CODE>f32_add</CODE>.
Lastly, there have been a few other changes to function names:
<BLOCKQUOTE>
<TABLE>
<TR>
<TD>used in names in Release 2:<CODE>&nbsp;&nbsp;&nbsp;</CODE></TD>
<TD>used in names in Release 3:<CODE>&nbsp;&nbsp;&nbsp;</CODE></TD>
<TD>relevant functions:</TD>
</TR>
<TR>
<TD><CODE>_round_to_zero</CODE></TD>
<TD><CODE>_r_minMag</CODE></TD>
<TD>conversions from floating-point to integer (<NOBR>section 8.2</NOBR>)</TD>
</TR>
<TR>
<TD><CODE>round_to_int</CODE></TD>
<TD><CODE>roundToInt</CODE></TD>
<TD>round-to-integer functions (<NOBR>section 8.7</NOBR>)</TD>
</TR>
<TR>
<TD><CODE>is_signaling_nan&nbsp;&nbsp;&nbsp;&nbsp;</CODE></TD>
<TD><CODE>isSignalingNaN</CODE></TD>
<TD>signaling NaN test functions (<NOBR>section 8.9</NOBR>)</TD>
</TR>
</TABLE>
</BLOCKQUOTE>
</P>
<H3>9.2. Changes to Function Arguments</H3>
<P>
Besides simple name changes, some operations were given a different interface
in <NOBR>Release 3</NOBR> than they had in <NOBR>Release 2</NOBR>:
<UL>
<LI>
<P>
Since <NOBR>Release 3</NOBR>, integer arguments and results of functions have
standard types from header <CODE>&lt;stdint.h&gt;</CODE>, such as
<CODE>uint32_t</CODE>, whereas previously their types could be defined
differently for each port of SoftFloat, usually using traditional C types such
as <CODE>unsigned</CODE> <CODE>int</CODE>.
Likewise, functions in <NOBR>Release 3</NOBR> and later pass Booleans as
standard type <CODE>bool</CODE> from <CODE>&lt;stdbool.h&gt;</CODE>, whereas
previously these were again passed as a port-specific type (usually
<CODE>int</CODE>).
</P>
<LI>
<P>
As explained earlier in <NOBR>section 4.5</NOBR>, <I>Conventions for Passing
Arguments and Results</I>, SoftFloat functions in <NOBR>Release 3</NOBR> and
later may pass <NOBR>80-bit</NOBR> and <NOBR>128-bit</NOBR> floating-point
values through pointers, meaning that functions take pointer arguments and then
read or write floating-point values at the locations indicated by the pointers.
In <NOBR>Release 2</NOBR>, floating-point arguments and results were always
passed by value, regardless of their size.
</P>
<LI>
<P>
Functions that round to an integer have additional
<CODE><I>roundingMode</I></CODE> and <CODE><I>exact</I></CODE> arguments that
they did not have in <NOBR>Release 2</NOBR>.
Refer to sections 8.2 <NOBR>and 8.7</NOBR> for descriptions of these functions
since <NOBR>Release 3</NOBR>.
For <NOBR>Release 2</NOBR>, the rounding mode, when needed, was taken from the
same global variable that affects the basic arithmetic operations (now called
<CODE>softfloat_roundingMode</CODE> but previously known as
<CODE>float_rounding_mode</CODE>).
Also, for <NOBR>Release 2</NOBR>, if the original floating-point input was not
an exact integer value, and if the <I>invalid</I> exception was not raised by
the function, the <I>inexact</I> exception was always raised.
<NOBR>Release 2</NOBR> had no option to suppress raising <I>inexact</I> in this
case.
Applications using SoftFloat <NOBR>Release 3</NOBR> or later can get the same
effect as <NOBR>Release 2</NOBR> by passing variable
<CODE>softfloat_roundingMode</CODE> for argument
<CODE><I>roundingMode</I></CODE> and <CODE>true</CODE> for argument
<CODE><I>exact</I></CODE>.
</P>
</UL>
</P>
<H3>9.3. Added Capabilities</H3>
<P>
With <NOBR>Release 3</NOBR>, some new features have been added that were not
present in <NOBR>Release 2</NOBR>:
<UL>
<LI>
<P>
A port of SoftFloat can now define any of the floating-point types
<CODE>float32_t</CODE>, <CODE>float64_t</CODE>, <CODE>extFloat80_t</CODE>, and
<CODE>float128_t</CODE> as aliases for C&rsquo;s standard floating-point types
<CODE>float</CODE>, <CODE>double</CODE>, and <CODE>long</CODE>
<CODE>double</CODE>, using either <CODE>#define</CODE> or <CODE>typedef</CODE>.
This potential convenience was not supported under <NOBR>Release 2</NOBR>.
</P>
<P>
(Note, however, that there may be a performance cost to defining
SoftFloat&rsquo;s floating-point types this way, depending on the platform and
the applications using SoftFloat.
Ports of SoftFloat may choose to forgo the convenience in favor of better
speed.)
</P>
<P>
<LI>
As of <NOBR>Release 3b</NOBR>, <NOBR>16-bit</NOBR> half-precision,
<CODE>float16_t</CODE>, is supported.
</P>
<P>
<LI>
Functions have been added for converting between the floating-point types and
unsigned integers.
<NOBR>Release 2</NOBR> supported only signed integers, not unsigned.
</P>
<P>
<LI>
Fused multiply-add functions have been added for all floating-point formats
except <NOBR>80-bit</NOBR> double-extended-precision,
<CODE>extFloat80_t</CODE>.
</P>
<P>
<LI>
New rounding modes are supported:
<CODE>softfloat_round_near_maxMag</CODE> (round to nearest, with ties to
maximum magnitude, away from zero), and, as of <NOBR>Release 3c</NOBR>,
optional <CODE>softfloat_round_odd</CODE> (round to odd, also known as
jamming).
</P>
</UL>
</P>
<H3>9.4. Better Compatibility with the C Language</H3>
<P>
<NOBR>Release 3</NOBR> of SoftFloat was written to conform better to the ISO C
Standard&rsquo;s rules for portability.
For example, older releases of SoftFloat employed type conversions in ways
that, while commonly practiced, are not fully defined by the C Standard.
Such problematic type conversions have generally been replaced by the use of
unions, the behavior around which is more strictly regulated these days.
</P>
<H3>9.5. New Organization as a Library</H3>
<P>
Starting with <NOBR>Release 3</NOBR>, SoftFloat now builds as a library.
Previously, SoftFloat compiled into a single, monolithic object file containing
all the SoftFloat functions, with the consequence that a program linking with
SoftFloat would get every SoftFloat function in its binary file even if only a
few functions were actually used.
With SoftFloat in the form of a library, a program that is linked by a standard
linker will include only those functions of SoftFloat that it needs and no
others.
</P>
<H3>9.6. Optimization Gains (and Losses)</H3>
<P>
Individual SoftFloat functions have been variously improved in
<NOBR>Release 3</NOBR> compared to earlier releases.
In particular, better, faster algorithms have been deployed for the operations
of division, square root, and remainder.
For functions operating on the larger <NOBR>80-bit</NOBR> and
<NOBR>128-bit</NOBR> formats, <CODE>extFloat80_t</CODE> and
<CODE>float128_t</CODE>, code size has also generally been reduced.
</P>
<P>
However, because <NOBR>Release 2</NOBR> compiled all of SoftFloat together as a
single object file, compilers could make optimizations across function calls
when one SoftFloat function calls another.
Now that the functions of SoftFloat are compiled separately and only afterward
linked together into a program, there is not usually the same opportunity to
optimize across function calls.
Some loss of speed has been observed due to this change.
</P>
<H2>10. Future Directions</H2>
<P>
The following improvements are anticipated for future releases of SoftFloat:
<UL>
<LI>
more functions from the 2008 version of the IEEE Floating-Point Standard;
<LI>
consistent, defined behavior for non-canonical representations of extended
format <CODE>extFloat80_t</CODE> (discussed in <NOBR>section 4.4</NOBR>,
<I>Non-canonical Representations in <CODE>extFloat80_t</CODE></I>).
</UL>
</P>
<H2>11. Contact Information</H2>
<P>
At the time of this writing, the most up-to-date information about SoftFloat
and the latest release can be found at the Web page
<A HREF="http://www.jhauser.us/arithmetic/SoftFloat.html"><NOBR><CODE>http://www.jhauser.us/arithmetic/SoftFloat.html</CODE></NOBR></A>.
</P>
</BODY>
deps/SoftFloat-3d/source/8086-SSE/extF80M_isSignalingNaN.c
Vendored
+57
View File
@@ -0,0 +1,57 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
*----------------------------------------------------------------------------*/
bool extF80M_isSignalingNaN( const extFloat80_t *aPtr )
{
const struct extFloat80M *aSPtr;
uint64_t uiA0;
aSPtr = (const struct extFloat80M *) aPtr;
if ( (aSPtr->signExp & 0x7FFF) != 0x7FFF ) return false;
uiA0 = aSPtr->signif;
return
! (uiA0 & UINT64_C( 0x4000000000000000 ))
&& (uiA0 & UINT64_C( 0x3FFFFFFFFFFFFFFF));
}
deps/SoftFloat-3d/source/8086-SSE/f128M_isSignalingNaN.c
Vendored
+60
View File
@@ -0,0 +1,60 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
*----------------------------------------------------------------------------*/
bool f128M_isSignalingNaN( const float128_t *aPtr )
{
const uint32_t *aWPtr;
uint32_t uiA96;
aWPtr = (const uint32_t *) aPtr;
uiA96 = aWPtr[indexWordHi( 4 )];
if ( (uiA96 & 0x7FFF8000) != 0x7FFF0000 ) return false;
return
((uiA96 & 0x00007FFF) != 0)
|| ((aWPtr[indexWord( 4, 2 )] | aWPtr[indexWord( 4, 1 )]
| aWPtr[indexWord( 4, 0 )])
!= 0);
}
deps/SoftFloat-3d/source/8086-SSE/s_commonNaNToExtF80M.c
Vendored
+56
View File
@@ -0,0 +1,56 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
| floating-point NaN, and stores this NaN at the location pointed to by
| `zSPtr'.
*----------------------------------------------------------------------------*/
void
softfloat_commonNaNToExtF80M(
const struct commonNaN *aPtr, struct extFloat80M *zSPtr )
{
zSPtr->signExp = packToExtF80UI64( aPtr->sign, 0x7FFF );
zSPtr->signif = UINT64_C( 0xC000000000000000 ) | aPtr->v64>>1;
}
deps/SoftFloat-3d/source/8086-SSE/s_commonNaNToExtF80UI.c
Vendored
+56
View File
@@ -0,0 +1,56 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
| floating-point NaN, and returns the bit pattern of this value as an unsigned
| integer.
*----------------------------------------------------------------------------*/
struct uint128 softfloat_commonNaNToExtF80UI( const struct commonNaN *aPtr )
{
struct uint128 uiZ;
uiZ.v64 = (uint_fast16_t) aPtr->sign<<15 | 0x7FFF;
uiZ.v0 = UINT64_C( 0xC000000000000000 ) | aPtr->v64>>1;
return uiZ;
}
deps/SoftFloat-3d/source/8086-SSE/s_commonNaNToF128M.c
Vendored
+56
View File
@@ -0,0 +1,56 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
| NaN, and stores this NaN at the location pointed to by `zWPtr'. Argument
| `zWPtr' points to an array of four 32-bit elements that concatenate in the
| platform's normal endian order to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_commonNaNToF128M( const struct commonNaN *aPtr, uint32_t *zWPtr )
{
softfloat_shortShiftRight128M( (const uint32_t *) &aPtr->v0, 16, zWPtr );
zWPtr[indexWordHi( 4 )] |= (uint32_t) aPtr->sign<<31 | 0x7FFF8000;
}
deps/SoftFloat-3d/source/8086-SSE/s_commonNaNToF128UI.c
Vendored
+55
View File
@@ -0,0 +1,55 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
struct uint128 softfloat_commonNaNToF128UI( const struct commonNaN *aPtr )
{
struct uint128 uiZ;
uiZ = softfloat_shortShiftRight128( aPtr->v64, aPtr->v0, 16 );
uiZ.v64 |= (uint_fast64_t) aPtr->sign<<63 | UINT64_C( 0x7FFF800000000000 );
return uiZ;
}
deps/SoftFloat-3d/source/8086-SSE/s_commonNaNToF16UI.c
Vendored
+51
View File
@@ -0,0 +1,51 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 16-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast16_t softfloat_commonNaNToF16UI( const struct commonNaN *aPtr )
{
return (uint_fast16_t) aPtr->sign<<15 | 0x7E00 | aPtr->v64>>54;
}
deps/SoftFloat-3d/source/8086-SSE/s_commonNaNToF32UI.c
Vendored
+51
View File
@@ -0,0 +1,51 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 32-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast32_t softfloat_commonNaNToF32UI( const struct commonNaN *aPtr )
{
return (uint_fast32_t) aPtr->sign<<31 | 0x7FC00000 | aPtr->v64>>41;
}
deps/SoftFloat-3d/source/8086-SSE/s_commonNaNToF64UI.c
Vendored
+53
View File
@@ -0,0 +1,53 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 64-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast64_t softfloat_commonNaNToF64UI( const struct commonNaN *aPtr )
{
return
(uint_fast64_t) aPtr->sign<<63 | UINT64_C( 0x7FF8000000000000 )
| aPtr->v64>>12;
}
deps/SoftFloat-3d/source/8086-SSE/s_extF80MToCommonNaN.c
Vendored
+62
View File
@@ -0,0 +1,62 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming the 80-bit extended floating-point value pointed to by `aSPtr' is
| a NaN, converts this NaN to the common NaN form, and stores the resulting
| common NaN at the location pointed to by `zPtr'. If the NaN is a signaling
| NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_extF80MToCommonNaN(
const struct extFloat80M *aSPtr, struct commonNaN *zPtr )
{
if ( extF80M_isSignalingNaN( (const extFloat80_t *) aSPtr ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = signExtF80UI64( aSPtr->signExp );
zPtr->v64 = aSPtr->signif<<1;
zPtr->v0 = 0;
}
deps/SoftFloat-3d/source/8086-SSE/s_extF80UIToCommonNaN.c
Vendored
+62
View File
@@ -0,0 +1,62 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming the unsigned integer formed from concatenating `uiA64' and `uiA0'
| has the bit pattern of an 80-bit extended floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_extF80UIToCommonNaN(
uint_fast16_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr )
{
if ( softfloat_isSigNaNExtF80UI( uiA64, uiA0 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = uiA64>>15;
zPtr->v64 = uiA0<<1;
zPtr->v0 = 0;
}
deps/SoftFloat-3d/source/8086-SSE/s_f128MToCommonNaN.c
Vendored
+62
View File
@@ -0,0 +1,62 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming the 128-bit floating-point value pointed to by `aWPtr' is a NaN,
| converts this NaN to the common NaN form, and stores the resulting common
| NaN at the location pointed to by `zPtr'. If the NaN is a signaling NaN,
| the invalid exception is raised. Argument `aWPtr' points to an array of
| four 32-bit elements that concatenate in the platform's normal endian order
| to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_f128MToCommonNaN( const uint32_t *aWPtr, struct commonNaN *zPtr )
{
if ( f128M_isSignalingNaN( (const float128_t *) aWPtr ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = aWPtr[indexWordHi( 4 )]>>31;
softfloat_shortShiftLeft128M( aWPtr, 16, (uint32_t *) &zPtr->v0 );
}
deps/SoftFloat-3d/source/8086-SSE/s_f128UIToCommonNaN.c
Vendored
+65
View File
@@ -0,0 +1,65 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming the unsigned integer formed from concatenating `uiA64' and `uiA0'
| has the bit pattern of a 128-bit floating-point NaN, converts this NaN to
| the common NaN form, and stores the resulting common NaN at the location
| pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid exception
| is raised.
*----------------------------------------------------------------------------*/
void
softfloat_f128UIToCommonNaN(
uint_fast64_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr )
{
struct uint128 NaNSig;
if ( softfloat_isSigNaNF128UI( uiA64, uiA0 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
NaNSig = softfloat_shortShiftLeft128( uiA64, uiA0, 16 );
zPtr->sign = uiA64>>63;
zPtr->v64 = NaNSig.v64;
zPtr->v0 = NaNSig.v0;
}
deps/SoftFloat-3d/source/8086-SSE/s_f16UIToCommonNaN.c
Vendored
+59
View File
@@ -0,0 +1,59 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 16-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f16UIToCommonNaN( uint_fast16_t uiA, struct commonNaN *zPtr )
{
if ( softfloat_isSigNaNF16UI( uiA ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = uiA>>15;
zPtr->v64 = (uint_fast64_t) uiA<<54;
zPtr->v0 = 0;
}
deps/SoftFloat-3d/source/8086-SSE/s_f32UIToCommonNaN.c
Vendored
+59
View File
@@ -0,0 +1,59 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 32-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f32UIToCommonNaN( uint_fast32_t uiA, struct commonNaN *zPtr )
{
if ( softfloat_isSigNaNF32UI( uiA ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = uiA>>31;
zPtr->v64 = (uint_fast64_t) uiA<<41;
zPtr->v0 = 0;
}
deps/SoftFloat-3d/source/8086-SSE/s_f64UIToCommonNaN.c
Vendored
+59
View File
@@ -0,0 +1,59 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 64-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f64UIToCommonNaN( uint_fast64_t uiA, struct commonNaN *zPtr )
{
if ( softfloat_isSigNaNF64UI( uiA ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = uiA>>63;
zPtr->v64 = uiA<<12;
zPtr->v0 = 0;
}
deps/SoftFloat-3d/source/8086-SSE/s_propagateNaNExtF80M.c
Vendored
+107
View File
@@ -0,0 +1,107 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming at least one of the two 80-bit extended floating-point values
| pointed to by `aSPtr' and `bSPtr' is a NaN, stores the combined NaN result
| at the location pointed to by `zSPtr'. If either original floating-point
| value is a signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_propagateNaNExtF80M(
const struct extFloat80M *aSPtr,
const struct extFloat80M *bSPtr,
struct extFloat80M *zSPtr
)
{
bool isSigNaNA;
const struct extFloat80M *sPtr;
bool isSigNaNB;
uint_fast16_t uiB64;
uint64_t uiB0;
uint_fast16_t uiA64;
uint64_t uiA0;
uint_fast16_t uiMagA64, uiMagB64;
isSigNaNA = extF80M_isSignalingNaN( (const extFloat80_t *) aSPtr );
sPtr = aSPtr;
if ( ! bSPtr ) {
if ( isSigNaNA ) softfloat_raiseFlags( softfloat_flag_invalid );
goto copy;
}
isSigNaNB = extF80M_isSignalingNaN( (const extFloat80_t *) bSPtr );
if ( isSigNaNA | isSigNaNB ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) {
uiB64 = bSPtr->signExp;
if ( isSigNaNB ) goto returnLargerUIMag;
uiB0 = bSPtr->signif;
if ( isNaNExtF80UI( uiB64, uiB0 ) ) goto copyB;
goto copy;
} else {
uiA64 = aSPtr->signExp;
uiA0 = aSPtr->signif;
if ( isNaNExtF80UI( uiA64, uiA0 ) ) goto copy;
goto copyB;
}
}
uiB64 = bSPtr->signExp;
returnLargerUIMag:
uiA64 = aSPtr->signExp;
uiMagA64 = uiA64 & 0x7FFF;
uiMagB64 = uiB64 & 0x7FFF;
if ( uiMagA64 < uiMagB64 ) goto copyB;
if ( uiMagB64 < uiMagA64 ) goto copy;
uiA0 = aSPtr->signif;
uiB0 = bSPtr->signif;
if ( uiA0 < uiB0 ) goto copyB;
if ( uiB0 < uiA0 ) goto copy;
if ( uiA64 < uiB64 ) goto copy;
copyB:
sPtr = bSPtr;
copy:
zSPtr->signExp = sPtr->signExp;
zSPtr->signif = sPtr->signif | UINT64_C( 0xC000000000000000 );
}
deps/SoftFloat-3d/source/8086-SSE/s_propagateNaNExtF80UI.c
Vendored
+106
View File
@@ -0,0 +1,106 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Interpreting the unsigned integer formed from concatenating `uiA64' and
| `uiA0' as an 80-bit extended floating-point value, and likewise interpreting
| the unsigned integer formed from concatenating `uiB64' and `uiB0' as another
| 80-bit extended floating-point value, and assuming at least on of these
| floating-point values is a NaN, returns the bit pattern of the combined NaN
| result. If either original floating-point value is a signaling NaN, the
| invalid exception is raised.
*----------------------------------------------------------------------------*/
struct uint128
softfloat_propagateNaNExtF80UI(
uint_fast16_t uiA64,
uint_fast64_t uiA0,
uint_fast16_t uiB64,
uint_fast64_t uiB0
)
{
bool isSigNaNA, isSigNaNB;
uint_fast64_t uiNonsigA0, uiNonsigB0;
uint_fast16_t uiMagA64, uiMagB64;
struct uint128 uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
isSigNaNA = softfloat_isSigNaNExtF80UI( uiA64, uiA0 );
isSigNaNB = softfloat_isSigNaNExtF80UI( uiB64, uiB0 );
/*------------------------------------------------------------------------
| Make NaNs non-signaling.
*------------------------------------------------------------------------*/
uiNonsigA0 = uiA0 | UINT64_C( 0xC000000000000000 );
uiNonsigB0 = uiB0 | UINT64_C( 0xC000000000000000 );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isSigNaNA | isSigNaNB ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) {
if ( isSigNaNB ) goto returnLargerMag;
if ( isNaNExtF80UI( uiB64, uiB0 ) ) goto returnB;
goto returnA;
} else {
if ( isNaNExtF80UI( uiA64, uiA0 ) ) goto returnA;
goto returnB;
}
}
returnLargerMag:
uiMagA64 = uiA64 & 0x7FFF;
uiMagB64 = uiB64 & 0x7FFF;
if ( uiMagA64 < uiMagB64 ) goto returnB;
if ( uiMagB64 < uiMagA64 ) goto returnA;
if ( uiNonsigA0 < uiNonsigB0 ) goto returnB;
if ( uiNonsigB0 < uiNonsigA0 ) goto returnA;
if ( uiA64 < uiB64 ) goto returnA;
returnB:
uiZ.v64 = uiB64;
uiZ.v0 = uiNonsigB0;
return uiZ;
returnA:
uiZ.v64 = uiA64;
uiZ.v0 = uiNonsigA0;
return uiZ;
}
deps/SoftFloat-3d/source/8086-SSE/s_propagateNaNF128M.c
Vendored
+76
View File
@@ -0,0 +1,76 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming at least one of the two 128-bit floating-point values pointed to by
| `aWPtr' and `bWPtr' is a NaN, stores the combined NaN result at the location
| pointed to by `zWPtr'. If either original floating-point value is a
| signaling NaN, the invalid exception is raised. Each of `aWPtr', `bWPtr',
| and `zWPtr' points to an array of four 32-bit elements that concatenate in
| the platform's normal endian order to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_propagateNaNF128M(
const uint32_t *aWPtr, const uint32_t *bWPtr, uint32_t *zWPtr )
{
bool isSigNaNA;
const uint32_t *ptr;
ptr = aWPtr;
isSigNaNA = f128M_isSignalingNaN( (const float128_t *) aWPtr );
if (
isSigNaNA
|| (bWPtr && f128M_isSignalingNaN( (const float128_t *) bWPtr ))
) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) goto copy;
}
if ( ! softfloat_isNaNF128M( aWPtr ) ) ptr = bWPtr;
copy:
zWPtr[indexWordHi( 4 )] = ptr[indexWordHi( 4 )] | 0x00008000;
zWPtr[indexWord( 4, 2 )] = ptr[indexWord( 4, 2 )];
zWPtr[indexWord( 4, 1 )] = ptr[indexWord( 4, 1 )];
zWPtr[indexWord( 4, 0 )] = ptr[indexWord( 4, 0 )];
}
deps/SoftFloat-3d/source/8086-SSE/s_propagateNaNF128UI.c
Vendored
+81
View File
@@ -0,0 +1,81 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Interpreting the unsigned integer formed from concatenating `uiA64' and
| `uiA0' as a 128-bit floating-point value, and likewise interpreting the
| unsigned integer formed from concatenating `uiB64' and `uiB0' as another
| 128-bit floating-point value, and assuming at least on of these floating-
| point values is a NaN, returns the bit pattern of the combined NaN result.
| If either original floating-point value is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
struct uint128
softfloat_propagateNaNF128UI(
uint_fast64_t uiA64,
uint_fast64_t uiA0,
uint_fast64_t uiB64,
uint_fast64_t uiB0
)
{
bool isSigNaNA;
struct uint128 uiZ;
isSigNaNA = softfloat_isSigNaNF128UI( uiA64, uiA0 );
if ( isSigNaNA || softfloat_isSigNaNF128UI( uiB64, uiB0 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) goto returnNonsigA;
}
if ( isNaNF128UI( uiA64, uiA0 ) ) {
returnNonsigA:
uiZ.v64 = uiA64;
uiZ.v0 = uiA0;
} else {
uiZ.v64 = uiB64;
uiZ.v0 = uiB0;
}
uiZ.v64 |= UINT64_C( 0x0000800000000000 );
return uiZ;
}
deps/SoftFloat-3d/source/8086-SSE/s_propagateNaNF16UI.c
Vendored
+63
View File
@@ -0,0 +1,63 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 16-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast16_t
softfloat_propagateNaNF16UI( uint_fast16_t uiA, uint_fast16_t uiB )
{
bool isSigNaNA;
isSigNaNA = softfloat_isSigNaNF16UI( uiA );
if ( isSigNaNA || softfloat_isSigNaNF16UI( uiB ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) return uiA | 0x0200;
}
return (isNaNF16UI( uiA ) ? uiA : uiB) | 0x0200;
}
deps/SoftFloat-3d/source/8086-SSE/s_propagateNaNF32UI.c
Vendored
+63
View File
@@ -0,0 +1,63 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 32-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast32_t
softfloat_propagateNaNF32UI( uint_fast32_t uiA, uint_fast32_t uiB )
{
bool isSigNaNA;
isSigNaNA = softfloat_isSigNaNF32UI( uiA );
if ( isSigNaNA || softfloat_isSigNaNF32UI( uiB ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) return uiA | 0x00400000;
}
return (isNaNF32UI( uiA ) ? uiA : uiB) | 0x00400000;
}
deps/SoftFloat-3d/source/8086-SSE/s_propagateNaNF64UI.c
Vendored
+63
View File
@@ -0,0 +1,63 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 64-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast64_t
softfloat_propagateNaNF64UI( uint_fast64_t uiA, uint_fast64_t uiB )
{
bool isSigNaNA;
isSigNaNA = softfloat_isSigNaNF64UI( uiA );
if ( isSigNaNA || softfloat_isSigNaNF64UI( uiB ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) return uiA | UINT64_C( 0x0008000000000000 );
}
return (isNaNF64UI( uiA ) ? uiA : uiB) | UINT64_C( 0x0008000000000000 );
}
deps/SoftFloat-3d/source/8086-SSE/softfloat_raiseFlags.c
Vendored
+52
View File
@@ -0,0 +1,52 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include "platform.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Raises the exceptions specified by `flags'. Floating-point traps can be
| defined here if desired. It is currently not possible for such a trap
| to substitute a result value. If traps are not implemented, this routine
| should be simply `softfloat_exceptionFlags |= flags;'.
*----------------------------------------------------------------------------*/
void softfloat_raiseFlags( uint_fast8_t flags )
{
softfloat_exceptionFlags |= flags;
}
deps/SoftFloat-3d/source/8086-SSE/specialize.h
Vendored
+375
View File
@@ -0,0 +1,375 @@
/*============================================================================
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#ifndef specialize_h
#define specialize_h 1
#include <stdbool.h>
#include <stdint.h>
#include "softfloat_types.h"
/*----------------------------------------------------------------------------
| Default value for `softfloat_detectTininess'.
*----------------------------------------------------------------------------*/
#define init_detectTininess softfloat_tininess_afterRounding
/*----------------------------------------------------------------------------
| The values to return on conversions to 32-bit integer formats that raise an
| invalid exception.
*----------------------------------------------------------------------------*/
#define ui32_fromPosOverflow 0xFFFFFFFF
#define ui32_fromNegOverflow 0
#define ui32_fromNaN 0xFFFFFFFF
#define i32_fromPosOverflow 0x7FFFFFFF
#define i32_fromNegOverflow (-0x7FFFFFFF - 1)
#define i32_fromNaN 0x7FFFFFFF
/*----------------------------------------------------------------------------
| The values to return on conversions to 64-bit integer formats that raise an
| invalid exception.
*----------------------------------------------------------------------------*/
#define ui64_fromPosOverflow UINT64_C( 0xFFFFFFFFFFFFFFFF )
#define ui64_fromNegOverflow 0
#define ui64_fromNaN UINT64_C( 0xFFFFFFFFFFFFFFFF )
#define i64_fromPosOverflow UINT64_C( 0x7FFFFFFFFFFFFFFF )
#define i64_fromNegOverflow (-UINT64_C( 0x7FFFFFFFFFFFFFFF ) - 1)
#define i64_fromNaN UINT64_C( 0x7FFFFFFFFFFFFFFF )
/*----------------------------------------------------------------------------
| "Common NaN" structure, used to transfer NaN representations from one format
| to another.
*----------------------------------------------------------------------------*/
struct commonNaN {
bool sign;
#ifdef LITTLEENDIAN
uint64_t v0, v64;
#else
uint64_t v64, v0;
#endif
};
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 16-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF16UI 0xFE00
/*----------------------------------------------------------------------------
| Returns true when 16-bit unsigned integer `uiA' has the bit pattern of a
| 16-bit floating-point signaling NaN.
| Note: This macro evaluates its argument more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNF16UI( uiA ) ((((uiA) & 0x7E00) == 0x7C00) && ((uiA) & 0x01FF))
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 16-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f16UIToCommonNaN( uint_fast16_t uiA, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 16-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast16_t softfloat_commonNaNToF16UI( const struct commonNaN *aPtr );
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 16-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast16_t
softfloat_propagateNaNF16UI( uint_fast16_t uiA, uint_fast16_t uiB );
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 32-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF32UI 0xFFC00000
/*----------------------------------------------------------------------------
| Returns true when 32-bit unsigned integer `uiA' has the bit pattern of a
| 32-bit floating-point signaling NaN.
| Note: This macro evaluates its argument more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNF32UI( uiA ) ((((uiA) & 0x7FC00000) == 0x7F800000) && ((uiA) & 0x003FFFFF))
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 32-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f32UIToCommonNaN( uint_fast32_t uiA, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 32-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast32_t softfloat_commonNaNToF32UI( const struct commonNaN *aPtr );
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 32-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast32_t
softfloat_propagateNaNF32UI( uint_fast32_t uiA, uint_fast32_t uiB );
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 64-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF64UI UINT64_C( 0xFFF8000000000000 )
/*----------------------------------------------------------------------------
| Returns true when 64-bit unsigned integer `uiA' has the bit pattern of a
| 64-bit floating-point signaling NaN.
| Note: This macro evaluates its argument more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNF64UI( uiA ) ((((uiA) & UINT64_C( 0x7FF8000000000000 )) == UINT64_C( 0x7FF0000000000000 )) && ((uiA) & UINT64_C( 0x0007FFFFFFFFFFFF )))
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 64-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f64UIToCommonNaN( uint_fast64_t uiA, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 64-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast64_t softfloat_commonNaNToF64UI( const struct commonNaN *aPtr );
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 64-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast64_t
softfloat_propagateNaNF64UI( uint_fast64_t uiA, uint_fast64_t uiB );
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 80-bit extended floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNExtF80UI64 0xFFFF
#define defaultNaNExtF80UI0 UINT64_C( 0xC000000000000000 )
/*----------------------------------------------------------------------------
| Returns true when the 80-bit unsigned integer formed from concatenating
| 16-bit `uiA64' and 64-bit `uiA0' has the bit pattern of an 80-bit extended
| floating-point signaling NaN.
| Note: This macro evaluates its arguments more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNExtF80UI( uiA64, uiA0 ) ((((uiA64) & 0x7FFF) == 0x7FFF) && ! ((uiA0) & UINT64_C( 0x4000000000000000 )) && ((uiA0) & UINT64_C( 0x3FFFFFFFFFFFFFFF )))
#ifdef SOFTFLOAT_FAST_INT64
/*----------------------------------------------------------------------------
| The following functions are needed only when `SOFTFLOAT_FAST_INT64' is
| defined.
*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
| Assuming the unsigned integer formed from concatenating `uiA64' and `uiA0'
| has the bit pattern of an 80-bit extended floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_extF80UIToCommonNaN(
uint_fast16_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
| floating-point NaN, and returns the bit pattern of this value as an unsigned
| integer.
*----------------------------------------------------------------------------*/
struct uint128 softfloat_commonNaNToExtF80UI( const struct commonNaN *aPtr );
/*----------------------------------------------------------------------------
| Interpreting the unsigned integer formed from concatenating `uiA64' and
| `uiA0' as an 80-bit extended floating-point value, and likewise interpreting
| the unsigned integer formed from concatenating `uiB64' and `uiB0' as another
| 80-bit extended floating-point value, and assuming at least on of these
| floating-point values is a NaN, returns the bit pattern of the combined NaN
| result. If either original floating-point value is a signaling NaN, the
| invalid exception is raised.
*----------------------------------------------------------------------------*/
struct uint128
softfloat_propagateNaNExtF80UI(
uint_fast16_t uiA64,
uint_fast64_t uiA0,
uint_fast16_t uiB64,
uint_fast64_t uiB0
);
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 128-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF128UI64 UINT64_C( 0xFFFF800000000000 )
#define defaultNaNF128UI0 UINT64_C( 0 )
/*----------------------------------------------------------------------------
| Returns true when the 128-bit unsigned integer formed from concatenating
| 64-bit `uiA64' and 64-bit `uiA0' has the bit pattern of a 128-bit floating-
| point signaling NaN.
| Note: This macro evaluates its arguments more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNF128UI( uiA64, uiA0 ) ((((uiA64) & UINT64_C( 0x7FFF800000000000 )) == UINT64_C( 0x7FFF000000000000 )) && ((uiA0) || ((uiA64) & UINT64_C( 0x00007FFFFFFFFFFF ))))
/*----------------------------------------------------------------------------
| Assuming the unsigned integer formed from concatenating `uiA64' and `uiA0'
| has the bit pattern of a 128-bit floating-point NaN, converts this NaN to
| the common NaN form, and stores the resulting common NaN at the location
| pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid exception
| is raised.
*----------------------------------------------------------------------------*/
void
softfloat_f128UIToCommonNaN(
uint_fast64_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
struct uint128 softfloat_commonNaNToF128UI( const struct commonNaN * );
/*----------------------------------------------------------------------------
| Interpreting the unsigned integer formed from concatenating `uiA64' and
| `uiA0' as a 128-bit floating-point value, and likewise interpreting the
| unsigned integer formed from concatenating `uiB64' and `uiB0' as another
| 128-bit floating-point value, and assuming at least on of these floating-
| point values is a NaN, returns the bit pattern of the combined NaN result.
| If either original floating-point value is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
struct uint128
softfloat_propagateNaNF128UI(
uint_fast64_t uiA64,
uint_fast64_t uiA0,
uint_fast64_t uiB64,
uint_fast64_t uiB0
);
#else
/*----------------------------------------------------------------------------
| The following functions are needed only when `SOFTFLOAT_FAST_INT64' is not
| defined.
*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
| Assuming the 80-bit extended floating-point value pointed to by `aSPtr' is
| a NaN, converts this NaN to the common NaN form, and stores the resulting
| common NaN at the location pointed to by `zPtr'. If the NaN is a signaling
| NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_extF80MToCommonNaN(
const struct extFloat80M *aSPtr, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
| floating-point NaN, and stores this NaN at the location pointed to by
| `zSPtr'.
*----------------------------------------------------------------------------*/
void
softfloat_commonNaNToExtF80M(
const struct commonNaN *aPtr, struct extFloat80M *zSPtr );
/*----------------------------------------------------------------------------
| Assuming at least one of the two 80-bit extended floating-point values
| pointed to by `aSPtr' and `bSPtr' is a NaN, stores the combined NaN result
| at the location pointed to by `zSPtr'. If either original floating-point
| value is a signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_propagateNaNExtF80M(
const struct extFloat80M *aSPtr,
const struct extFloat80M *bSPtr,
struct extFloat80M *zSPtr
);
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 128-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF128UI96 0xFFFF8000
#define defaultNaNF128UI64 0
#define defaultNaNF128UI32 0
#define defaultNaNF128UI0 0
/*----------------------------------------------------------------------------
| Assuming the 128-bit floating-point value pointed to by `aWPtr' is a NaN,
| converts this NaN to the common NaN form, and stores the resulting common
| NaN at the location pointed to by `zPtr'. If the NaN is a signaling NaN,
| the invalid exception is raised. Argument `aWPtr' points to an array of
| four 32-bit elements that concatenate in the platform's normal endian order
| to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_f128MToCommonNaN( const uint32_t *aWPtr, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
| NaN, and stores this NaN at the location pointed to by `zWPtr'. Argument
| `zWPtr' points to an array of four 32-bit elements that concatenate in the
| platform's normal endian order to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_commonNaNToF128M( const struct commonNaN *aPtr, uint32_t *zWPtr );
/*----------------------------------------------------------------------------
| Assuming at least one of the two 128-bit floating-point values pointed to by
| `aWPtr' and `bWPtr' is a NaN, stores the combined NaN result at the location
| pointed to by `zWPtr'. If either original floating-point value is a
| signaling NaN, the invalid exception is raised. Each of `aWPtr', `bWPtr',
| and `zWPtr' points to an array of four 32-bit elements that concatenate in
| the platform's normal endian order to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_propagateNaNF128M(
const uint32_t *aWPtr, const uint32_t *bWPtr, uint32_t *zWPtr );
#endif
#endif
deps/SoftFloat-3d/source/8086/extF80M_isSignalingNaN.c
Vendored
+57
View File
@@ -0,0 +1,57 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
*----------------------------------------------------------------------------*/
bool extF80M_isSignalingNaN( const extFloat80_t *aPtr )
{
const struct extFloat80M *aSPtr;
uint64_t uiA0;
aSPtr = (const struct extFloat80M *) aPtr;
if ( (aSPtr->signExp & 0x7FFF) != 0x7FFF ) return false;
uiA0 = aSPtr->signif;
return
! (uiA0 & UINT64_C( 0x4000000000000000 ))
&& (uiA0 & UINT64_C( 0x3FFFFFFFFFFFFFFF));
}
deps/SoftFloat-3d/source/8086/f128M_isSignalingNaN.c
Vendored
+60
View File
@@ -0,0 +1,60 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
*----------------------------------------------------------------------------*/
bool f128M_isSignalingNaN( const float128_t *aPtr )
{
const uint32_t *aWPtr;
uint32_t uiA96;
aWPtr = (const uint32_t *) aPtr;
uiA96 = aWPtr[indexWordHi( 4 )];
if ( (uiA96 & 0x7FFF8000) != 0x7FFF0000 ) return false;
return
((uiA96 & 0x00007FFF) != 0)
|| ((aWPtr[indexWord( 4, 2 )] | aWPtr[indexWord( 4, 1 )]
| aWPtr[indexWord( 4, 0 )])
!= 0);
}
deps/SoftFloat-3d/source/8086/s_commonNaNToExtF80M.c
Vendored
+56
View File
@@ -0,0 +1,56 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
| floating-point NaN, and stores this NaN at the location pointed to by
| `zSPtr'.
*----------------------------------------------------------------------------*/
void
softfloat_commonNaNToExtF80M(
const struct commonNaN *aPtr, struct extFloat80M *zSPtr )
{
zSPtr->signExp = packToExtF80UI64( aPtr->sign, 0x7FFF );
zSPtr->signif = UINT64_C( 0xC000000000000000 ) | aPtr->v64>>1;
}
deps/SoftFloat-3d/source/8086/s_commonNaNToExtF80UI.c
Vendored
+56
View File
@@ -0,0 +1,56 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
| floating-point NaN, and returns the bit pattern of this value as an unsigned
| integer.
*----------------------------------------------------------------------------*/
struct uint128 softfloat_commonNaNToExtF80UI( const struct commonNaN *aPtr )
{
struct uint128 uiZ;
uiZ.v64 = (uint_fast16_t) aPtr->sign<<15 | 0x7FFF;
uiZ.v0 = UINT64_C( 0xC000000000000000 ) | aPtr->v64>>1;
return uiZ;
}
deps/SoftFloat-3d/source/8086/s_commonNaNToF128M.c
Vendored
+56
View File
@@ -0,0 +1,56 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
| NaN, and stores this NaN at the location pointed to by `zWPtr'. Argument
| `zWPtr' points to an array of four 32-bit elements that concatenate in the
| platform's normal endian order to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_commonNaNToF128M( const struct commonNaN *aPtr, uint32_t *zWPtr )
{
softfloat_shortShiftRight128M( (const uint32_t *) &aPtr->v0, 16, zWPtr );
zWPtr[indexWordHi( 4 )] |= (uint32_t) aPtr->sign<<31 | 0x7FFF8000;
}
deps/SoftFloat-3d/source/8086/s_commonNaNToF128UI.c
Vendored
+55
View File
@@ -0,0 +1,55 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
struct uint128 softfloat_commonNaNToF128UI( const struct commonNaN *aPtr )
{
struct uint128 uiZ;
uiZ = softfloat_shortShiftRight128( aPtr->v64, aPtr->v0, 16 );
uiZ.v64 |= (uint_fast64_t) aPtr->sign<<63 | UINT64_C( 0x7FFF800000000000 );
return uiZ;
}
deps/SoftFloat-3d/source/8086/s_commonNaNToF16UI.c
Vendored
+51
View File
@@ -0,0 +1,51 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 16-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast16_t softfloat_commonNaNToF16UI( const struct commonNaN *aPtr )
{
return (uint_fast16_t) aPtr->sign<<15 | 0x7E00 | aPtr->v64>>54;
}
deps/SoftFloat-3d/source/8086/s_commonNaNToF32UI.c
Vendored
+51
View File
@@ -0,0 +1,51 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 32-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast32_t softfloat_commonNaNToF32UI( const struct commonNaN *aPtr )
{
return (uint_fast32_t) aPtr->sign<<31 | 0x7FC00000 | aPtr->v64>>41;
}
deps/SoftFloat-3d/source/8086/s_commonNaNToF64UI.c
Vendored
+53
View File
@@ -0,0 +1,53 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 64-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast64_t softfloat_commonNaNToF64UI( const struct commonNaN *aPtr )
{
return
(uint_fast64_t) aPtr->sign<<63 | UINT64_C( 0x7FF8000000000000 )
| aPtr->v64>>12;
}
deps/SoftFloat-3d/source/8086/s_extF80MToCommonNaN.c
Vendored
+62
View File
@@ -0,0 +1,62 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming the 80-bit extended floating-point value pointed to by `aSPtr' is
| a NaN, converts this NaN to the common NaN form, and stores the resulting
| common NaN at the location pointed to by `zPtr'. If the NaN is a signaling
| NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_extF80MToCommonNaN(
const struct extFloat80M *aSPtr, struct commonNaN *zPtr )
{
if ( extF80M_isSignalingNaN( (const extFloat80_t *) aSPtr ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = signExtF80UI64( aSPtr->signExp );
zPtr->v64 = aSPtr->signif<<1;
zPtr->v0 = 0;
}
deps/SoftFloat-3d/source/8086/s_extF80UIToCommonNaN.c
Vendored
+62
View File
@@ -0,0 +1,62 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming the unsigned integer formed from concatenating `uiA64' and `uiA0'
| has the bit pattern of an 80-bit extended floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_extF80UIToCommonNaN(
uint_fast16_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr )
{
if ( softfloat_isSigNaNExtF80UI( uiA64, uiA0 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = uiA64>>15;
zPtr->v64 = uiA0<<1;
zPtr->v0 = 0;
}
deps/SoftFloat-3d/source/8086/s_f128MToCommonNaN.c
Vendored
+62
View File
@@ -0,0 +1,62 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming the 128-bit floating-point value pointed to by `aWPtr' is a NaN,
| converts this NaN to the common NaN form, and stores the resulting common
| NaN at the location pointed to by `zPtr'. If the NaN is a signaling NaN,
| the invalid exception is raised. Argument `aWPtr' points to an array of
| four 32-bit elements that concatenate in the platform's normal endian order
| to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_f128MToCommonNaN( const uint32_t *aWPtr, struct commonNaN *zPtr )
{
if ( f128M_isSignalingNaN( (const float128_t *) aWPtr ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = aWPtr[indexWordHi( 4 )]>>31;
softfloat_shortShiftLeft128M( aWPtr, 16, (uint32_t *) &zPtr->v0 );
}
deps/SoftFloat-3d/source/8086/s_f128UIToCommonNaN.c
Vendored
+65
View File
@@ -0,0 +1,65 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "primitives.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming the unsigned integer formed from concatenating `uiA64' and `uiA0'
| has the bit pattern of a 128-bit floating-point NaN, converts this NaN to
| the common NaN form, and stores the resulting common NaN at the location
| pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid exception
| is raised.
*----------------------------------------------------------------------------*/
void
softfloat_f128UIToCommonNaN(
uint_fast64_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr )
{
struct uint128 NaNSig;
if ( softfloat_isSigNaNF128UI( uiA64, uiA0 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
NaNSig = softfloat_shortShiftLeft128( uiA64, uiA0, 16 );
zPtr->sign = uiA64>>63;
zPtr->v64 = NaNSig.v64;
zPtr->v0 = NaNSig.v0;
}
deps/SoftFloat-3d/source/8086/s_f16UIToCommonNaN.c
Vendored
+59
View File
@@ -0,0 +1,59 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 16-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f16UIToCommonNaN( uint_fast16_t uiA, struct commonNaN *zPtr )
{
if ( softfloat_isSigNaNF16UI( uiA ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = uiA>>15;
zPtr->v64 = (uint_fast64_t) uiA<<54;
zPtr->v0 = 0;
}
deps/SoftFloat-3d/source/8086/s_f32UIToCommonNaN.c
Vendored
+59
View File
@@ -0,0 +1,59 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 32-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f32UIToCommonNaN( uint_fast32_t uiA, struct commonNaN *zPtr )
{
if ( softfloat_isSigNaNF32UI( uiA ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = uiA>>31;
zPtr->v64 = (uint_fast64_t) uiA<<41;
zPtr->v0 = 0;
}
deps/SoftFloat-3d/source/8086/s_f64UIToCommonNaN.c
Vendored
+59
View File
@@ -0,0 +1,59 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdint.h>
#include "platform.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 64-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f64UIToCommonNaN( uint_fast64_t uiA, struct commonNaN *zPtr )
{
if ( softfloat_isSigNaNF64UI( uiA ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
zPtr->sign = uiA>>63;
zPtr->v64 = uiA<<12;
zPtr->v0 = 0;
}
deps/SoftFloat-3d/source/8086/s_propagateNaNExtF80M.c
Vendored
+107
View File
@@ -0,0 +1,107 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming at least one of the two 80-bit extended floating-point values
| pointed to by `aSPtr' and `bSPtr' is a NaN, stores the combined NaN result
| at the location pointed to by `zSPtr'. If either original floating-point
| value is a signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_propagateNaNExtF80M(
const struct extFloat80M *aSPtr,
const struct extFloat80M *bSPtr,
struct extFloat80M *zSPtr
)
{
bool isSigNaNA;
const struct extFloat80M *sPtr;
bool isSigNaNB;
uint_fast16_t uiB64;
uint64_t uiB0;
uint_fast16_t uiA64;
uint64_t uiA0;
uint_fast16_t uiMagA64, uiMagB64;
isSigNaNA = extF80M_isSignalingNaN( (const extFloat80_t *) aSPtr );
sPtr = aSPtr;
if ( ! bSPtr ) {
if ( isSigNaNA ) softfloat_raiseFlags( softfloat_flag_invalid );
goto copy;
}
isSigNaNB = extF80M_isSignalingNaN( (const extFloat80_t *) bSPtr );
if ( isSigNaNA | isSigNaNB ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) {
uiB64 = bSPtr->signExp;
if ( isSigNaNB ) goto returnLargerUIMag;
uiB0 = bSPtr->signif;
if ( isNaNExtF80UI( uiB64, uiB0 ) ) goto copyB;
goto copy;
} else {
uiA64 = aSPtr->signExp;
uiA0 = aSPtr->signif;
if ( isNaNExtF80UI( uiA64, uiA0 ) ) goto copy;
goto copyB;
}
}
uiB64 = bSPtr->signExp;
returnLargerUIMag:
uiA64 = aSPtr->signExp;
uiMagA64 = uiA64 & 0x7FFF;
uiMagB64 = uiB64 & 0x7FFF;
if ( uiMagA64 < uiMagB64 ) goto copyB;
if ( uiMagB64 < uiMagA64 ) goto copy;
uiA0 = aSPtr->signif;
uiB0 = bSPtr->signif;
if ( uiA0 < uiB0 ) goto copyB;
if ( uiB0 < uiA0 ) goto copy;
if ( uiA64 < uiB64 ) goto copy;
copyB:
sPtr = bSPtr;
copy:
zSPtr->signExp = sPtr->signExp;
zSPtr->signif = sPtr->signif | UINT64_C( 0xC000000000000000 );
}
deps/SoftFloat-3d/source/8086/s_propagateNaNExtF80UI.c
Vendored
+106
View File
@@ -0,0 +1,106 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Interpreting the unsigned integer formed from concatenating `uiA64' and
| `uiA0' as an 80-bit extended floating-point value, and likewise interpreting
| the unsigned integer formed from concatenating `uiB64' and `uiB0' as another
| 80-bit extended floating-point value, and assuming at least on of these
| floating-point values is a NaN, returns the bit pattern of the combined NaN
| result. If either original floating-point value is a signaling NaN, the
| invalid exception is raised.
*----------------------------------------------------------------------------*/
struct uint128
softfloat_propagateNaNExtF80UI(
uint_fast16_t uiA64,
uint_fast64_t uiA0,
uint_fast16_t uiB64,
uint_fast64_t uiB0
)
{
bool isSigNaNA, isSigNaNB;
uint_fast64_t uiNonsigA0, uiNonsigB0;
uint_fast16_t uiMagA64, uiMagB64;
struct uint128 uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
isSigNaNA = softfloat_isSigNaNExtF80UI( uiA64, uiA0 );
isSigNaNB = softfloat_isSigNaNExtF80UI( uiB64, uiB0 );
/*------------------------------------------------------------------------
| Make NaNs non-signaling.
*------------------------------------------------------------------------*/
uiNonsigA0 = uiA0 | UINT64_C( 0xC000000000000000 );
uiNonsigB0 = uiB0 | UINT64_C( 0xC000000000000000 );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isSigNaNA | isSigNaNB ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) {
if ( isSigNaNB ) goto returnLargerMag;
if ( isNaNExtF80UI( uiB64, uiB0 ) ) goto returnB;
goto returnA;
} else {
if ( isNaNExtF80UI( uiA64, uiA0 ) ) goto returnA;
goto returnB;
}
}
returnLargerMag:
uiMagA64 = uiA64 & 0x7FFF;
uiMagB64 = uiB64 & 0x7FFF;
if ( uiMagA64 < uiMagB64 ) goto returnB;
if ( uiMagB64 < uiMagA64 ) goto returnA;
if ( uiNonsigA0 < uiNonsigB0 ) goto returnB;
if ( uiNonsigB0 < uiNonsigA0 ) goto returnA;
if ( uiA64 < uiB64 ) goto returnA;
returnB:
uiZ.v64 = uiB64;
uiZ.v0 = uiNonsigB0;
return uiZ;
returnA:
uiZ.v64 = uiA64;
uiZ.v0 = uiNonsigA0;
return uiZ;
}
deps/SoftFloat-3d/source/8086/s_propagateNaNF128M.c
Vendored
+108
View File
@@ -0,0 +1,108 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Assuming at least one of the two 128-bit floating-point values pointed to by
| `aWPtr' and `bWPtr' is a NaN, stores the combined NaN result at the location
| pointed to by `zWPtr'. If either original floating-point value is a
| signaling NaN, the invalid exception is raised. Each of `aWPtr', `bWPtr',
| and `zWPtr' points to an array of four 32-bit elements that concatenate in
| the platform's normal endian order to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_propagateNaNF128M(
const uint32_t *aWPtr, const uint32_t *bWPtr, uint32_t *zWPtr )
{
bool isSigNaNA;
const uint32_t *ptr;
bool isSigNaNB;
uint32_t uiA96, uiB96, wordMagA, wordMagB;
isSigNaNA = f128M_isSignalingNaN( (const float128_t *) aWPtr );
ptr = aWPtr;
if ( ! bWPtr ) {
if ( isSigNaNA ) softfloat_raiseFlags( softfloat_flag_invalid );
goto copy;
}
isSigNaNB = f128M_isSignalingNaN( (const float128_t *) bWPtr );
if ( isSigNaNA | isSigNaNB ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) {
if ( isSigNaNB ) goto returnLargerUIMag;
if ( softfloat_isNaNF128M( bWPtr ) ) goto copyB;
goto copy;
} else {
if ( softfloat_isNaNF128M( aWPtr ) ) goto copy;
goto copyB;
}
}
returnLargerUIMag:
uiA96 = aWPtr[indexWordHi( 4 )];
uiB96 = bWPtr[indexWordHi( 4 )];
wordMagA = uiA96 & 0x7FFFFFFF;
wordMagB = uiB96 & 0x7FFFFFFF;
if ( wordMagA < wordMagB ) goto copyB;
if ( wordMagB < wordMagA ) goto copy;
wordMagA = aWPtr[indexWord( 4, 2 )];
wordMagB = bWPtr[indexWord( 4, 2 )];
if ( wordMagA < wordMagB ) goto copyB;
if ( wordMagB < wordMagA ) goto copy;
wordMagA = aWPtr[indexWord( 4, 1 )];
wordMagB = bWPtr[indexWord( 4, 1 )];
if ( wordMagA < wordMagB ) goto copyB;
if ( wordMagB < wordMagA ) goto copy;
wordMagA = aWPtr[indexWord( 4, 0 )];
wordMagB = bWPtr[indexWord( 4, 0 )];
if ( wordMagA < wordMagB ) goto copyB;
if ( wordMagB < wordMagA ) goto copy;
if ( uiA96 < uiB96 ) goto copy;
copyB:
ptr = bWPtr;
copy:
zWPtr[indexWordHi( 4 )] = ptr[indexWordHi( 4 )] | 0x00008000;
zWPtr[indexWord( 4, 2 )] = ptr[indexWord( 4, 2 )];
zWPtr[indexWord( 4, 1 )] = ptr[indexWord( 4, 1 )];
zWPtr[indexWord( 4, 0 )] = ptr[indexWord( 4, 0 )];
}
deps/SoftFloat-3d/source/8086/s_propagateNaNF128UI.c
Vendored
+105
View File
@@ -0,0 +1,105 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Interpreting the unsigned integer formed from concatenating `uiA64' and
| `uiA0' as a 128-bit floating-point value, and likewise interpreting the
| unsigned integer formed from concatenating `uiB64' and `uiB0' as another
| 128-bit floating-point value, and assuming at least on of these floating-
| point values is a NaN, returns the bit pattern of the combined NaN result.
| If either original floating-point value is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
struct uint128
softfloat_propagateNaNF128UI(
uint_fast64_t uiA64,
uint_fast64_t uiA0,
uint_fast64_t uiB64,
uint_fast64_t uiB0
)
{
bool isSigNaNA, isSigNaNB;
uint_fast64_t uiNonsigA64, uiNonsigB64, uiMagA64, uiMagB64;
struct uint128 uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
isSigNaNA = softfloat_isSigNaNF128UI( uiA64, uiA0 );
isSigNaNB = softfloat_isSigNaNF128UI( uiB64, uiB0 );
/*------------------------------------------------------------------------
| Make NaNs non-signaling.
*------------------------------------------------------------------------*/
uiNonsigA64 = uiA64 | UINT64_C( 0x0000800000000000 );
uiNonsigB64 = uiB64 | UINT64_C( 0x0000800000000000 );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isSigNaNA | isSigNaNB ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) {
if ( isSigNaNB ) goto returnLargerMag;
if ( isNaNF128UI( uiB64, uiB0 ) ) goto returnB;
goto returnA;
} else {
if ( isNaNF128UI( uiA64, uiA0 ) ) goto returnA;
goto returnB;
}
}
returnLargerMag:
uiMagA64 = uiNonsigA64 & UINT64_C( 0x7FFFFFFFFFFFFFFF );
uiMagB64 = uiNonsigB64 & UINT64_C( 0x7FFFFFFFFFFFFFFF );
if ( uiMagA64 < uiMagB64 ) goto returnB;
if ( uiMagB64 < uiMagA64 ) goto returnA;
if ( uiA0 < uiB0 ) goto returnB;
if ( uiB0 < uiA0 ) goto returnA;
if ( uiNonsigA64 < uiNonsigB64 ) goto returnA;
returnB:
uiZ.v64 = uiNonsigB64;
uiZ.v0 = uiB0;
return uiZ;
returnA:
uiZ.v64 = uiNonsigA64;
uiZ.v0 = uiA0;
return uiZ;
}
deps/SoftFloat-3d/source/8086/s_propagateNaNF16UI.c
Vendored
+84
View File
@@ -0,0 +1,84 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 16-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast16_t
softfloat_propagateNaNF16UI( uint_fast16_t uiA, uint_fast16_t uiB )
{
bool isSigNaNA, isSigNaNB;
uint_fast16_t uiNonsigA, uiNonsigB, uiMagA, uiMagB;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
isSigNaNA = softfloat_isSigNaNF16UI( uiA );
isSigNaNB = softfloat_isSigNaNF16UI( uiB );
/*------------------------------------------------------------------------
| Make NaNs non-signaling.
*------------------------------------------------------------------------*/
uiNonsigA = uiA | 0x0200;
uiNonsigB = uiB | 0x0200;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isSigNaNA | isSigNaNB ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) {
if ( isSigNaNB ) goto returnLargerMag;
return isNaNF16UI( uiB ) ? uiNonsigB : uiNonsigA;
} else {
return isNaNF16UI( uiA ) ? uiNonsigA : uiNonsigB;
}
}
returnLargerMag:
uiMagA = uiNonsigA & 0x7FFF;
uiMagB = uiNonsigB & 0x7FFF;
if ( uiMagA < uiMagB ) return uiNonsigB;
if ( uiMagB < uiMagA ) return uiNonsigA;
return (uiNonsigA < uiNonsigB) ? uiNonsigA : uiNonsigB;
}
deps/SoftFloat-3d/source/8086/s_propagateNaNF32UI.c
Vendored
+84
View File
@@ -0,0 +1,84 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 32-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast32_t
softfloat_propagateNaNF32UI( uint_fast32_t uiA, uint_fast32_t uiB )
{
bool isSigNaNA, isSigNaNB;
uint_fast32_t uiNonsigA, uiNonsigB, uiMagA, uiMagB;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
isSigNaNA = softfloat_isSigNaNF32UI( uiA );
isSigNaNB = softfloat_isSigNaNF32UI( uiB );
/*------------------------------------------------------------------------
| Make NaNs non-signaling.
*------------------------------------------------------------------------*/
uiNonsigA = uiA | 0x00400000;
uiNonsigB = uiB | 0x00400000;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isSigNaNA | isSigNaNB ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) {
if ( isSigNaNB ) goto returnLargerMag;
return isNaNF32UI( uiB ) ? uiNonsigB : uiNonsigA;
} else {
return isNaNF32UI( uiA ) ? uiNonsigA : uiNonsigB;
}
}
returnLargerMag:
uiMagA = uiNonsigA & 0x7FFFFFFF;
uiMagB = uiNonsigB & 0x7FFFFFFF;
if ( uiMagA < uiMagB ) return uiNonsigB;
if ( uiMagB < uiMagA ) return uiNonsigA;
return (uiNonsigA < uiNonsigB) ? uiNonsigA : uiNonsigB;
}
deps/SoftFloat-3d/source/8086/s_propagateNaNF64UI.c
Vendored
+84
View File
@@ -0,0 +1,84 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 64-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast64_t
softfloat_propagateNaNF64UI( uint_fast64_t uiA, uint_fast64_t uiB )
{
bool isSigNaNA, isSigNaNB;
uint_fast64_t uiNonsigA, uiNonsigB, uiMagA, uiMagB;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
isSigNaNA = softfloat_isSigNaNF64UI( uiA );
isSigNaNB = softfloat_isSigNaNF64UI( uiB );
/*------------------------------------------------------------------------
| Make NaNs non-signaling.
*------------------------------------------------------------------------*/
uiNonsigA = uiA | UINT64_C( 0x0008000000000000 );
uiNonsigB = uiB | UINT64_C( 0x0008000000000000 );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isSigNaNA | isSigNaNB ) {
softfloat_raiseFlags( softfloat_flag_invalid );
if ( isSigNaNA ) {
if ( isSigNaNB ) goto returnLargerMag;
return isNaNF64UI( uiB ) ? uiNonsigB : uiNonsigA;
} else {
return isNaNF64UI( uiA ) ? uiNonsigA : uiNonsigB;
}
}
returnLargerMag:
uiMagA = uiNonsigA & UINT64_C( 0x7FFFFFFFFFFFFFFF );
uiMagB = uiNonsigB & UINT64_C( 0x7FFFFFFFFFFFFFFF );
if ( uiMagA < uiMagB ) return uiNonsigB;
if ( uiMagB < uiMagA ) return uiNonsigA;
return (uiNonsigA < uiNonsigB) ? uiNonsigA : uiNonsigB;
}
deps/SoftFloat-3d/source/8086/softfloat_raiseFlags.c
Vendored
+52
View File
@@ -0,0 +1,52 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include "platform.h"
#include "softfloat.h"
/*----------------------------------------------------------------------------
| Raises the exceptions specified by `flags'. Floating-point traps can be
| defined here if desired. It is currently not possible for such a trap
| to substitute a result value. If traps are not implemented, this routine
| should be simply `softfloat_exceptionFlags |= flags;'.
*----------------------------------------------------------------------------*/
void softfloat_raiseFlags( uint_fast8_t flags )
{
softfloat_exceptionFlags |= flags;
}
deps/SoftFloat-3d/source/8086/specialize.h
Vendored
+375
View File
@@ -0,0 +1,375 @@
/*============================================================================
This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#ifndef specialize_h
#define specialize_h 1
#include <stdbool.h>
#include <stdint.h>
#include "softfloat_types.h"
/*----------------------------------------------------------------------------
| Default value for `softfloat_detectTininess'.
*----------------------------------------------------------------------------*/
#define init_detectTininess softfloat_tininess_afterRounding
/*----------------------------------------------------------------------------
| The values to return on conversions to 32-bit integer formats that raise an
| invalid exception.
*----------------------------------------------------------------------------*/
#define ui32_fromPosOverflow 0xFFFFFFFF
#define ui32_fromNegOverflow 0
#define ui32_fromNaN 0xFFFFFFFF
#define i32_fromPosOverflow 0x7FFFFFFF
#define i32_fromNegOverflow (-0x7FFFFFFF - 1)
#define i32_fromNaN 0x7FFFFFFF
/*----------------------------------------------------------------------------
| The values to return on conversions to 64-bit integer formats that raise an
| invalid exception.
*----------------------------------------------------------------------------*/
#define ui64_fromPosOverflow UINT64_C( 0xFFFFFFFFFFFFFFFF )
#define ui64_fromNegOverflow 0
#define ui64_fromNaN UINT64_C( 0xFFFFFFFFFFFFFFFF )
#define i64_fromPosOverflow UINT64_C( 0x7FFFFFFFFFFFFFFF )
#define i64_fromNegOverflow (-UINT64_C( 0x7FFFFFFFFFFFFFFF ) - 1)
#define i64_fromNaN UINT64_C( 0x7FFFFFFFFFFFFFFF )
/*----------------------------------------------------------------------------
| "Common NaN" structure, used to transfer NaN representations from one format
| to another.
*----------------------------------------------------------------------------*/
struct commonNaN {
bool sign;
#ifdef LITTLEENDIAN
uint64_t v0, v64;
#else
uint64_t v64, v0;
#endif
};
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 16-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF16UI 0xFE00
/*----------------------------------------------------------------------------
| Returns true when 16-bit unsigned integer `uiA' has the bit pattern of a
| 16-bit floating-point signaling NaN.
| Note: This macro evaluates its argument more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNF16UI( uiA ) ((((uiA) & 0x7E00) == 0x7C00) && ((uiA) & 0x01FF))
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 16-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f16UIToCommonNaN( uint_fast16_t uiA, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 16-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast16_t softfloat_commonNaNToF16UI( const struct commonNaN *aPtr );
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 16-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast16_t
softfloat_propagateNaNF16UI( uint_fast16_t uiA, uint_fast16_t uiB );
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 32-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF32UI 0xFFC00000
/*----------------------------------------------------------------------------
| Returns true when 32-bit unsigned integer `uiA' has the bit pattern of a
| 32-bit floating-point signaling NaN.
| Note: This macro evaluates its argument more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNF32UI( uiA ) ((((uiA) & 0x7FC00000) == 0x7F800000) && ((uiA) & 0x003FFFFF))
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 32-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f32UIToCommonNaN( uint_fast32_t uiA, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 32-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast32_t softfloat_commonNaNToF32UI( const struct commonNaN *aPtr );
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 32-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast32_t
softfloat_propagateNaNF32UI( uint_fast32_t uiA, uint_fast32_t uiB );
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 64-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF64UI UINT64_C( 0xFFF8000000000000 )
/*----------------------------------------------------------------------------
| Returns true when 64-bit unsigned integer `uiA' has the bit pattern of a
| 64-bit floating-point signaling NaN.
| Note: This macro evaluates its argument more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNF64UI( uiA ) ((((uiA) & UINT64_C( 0x7FF8000000000000 )) == UINT64_C( 0x7FF0000000000000 )) && ((uiA) & UINT64_C( 0x0007FFFFFFFFFFFF )))
/*----------------------------------------------------------------------------
| Assuming `uiA' has the bit pattern of a 64-bit floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void softfloat_f64UIToCommonNaN( uint_fast64_t uiA, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 64-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
uint_fast64_t softfloat_commonNaNToF64UI( const struct commonNaN *aPtr );
/*----------------------------------------------------------------------------
| Interpreting `uiA' and `uiB' as the bit patterns of two 64-bit floating-
| point values, at least one of which is a NaN, returns the bit pattern of
| the combined NaN result. If either `uiA' or `uiB' has the pattern of a
| signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
uint_fast64_t
softfloat_propagateNaNF64UI( uint_fast64_t uiA, uint_fast64_t uiB );
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 80-bit extended floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNExtF80UI64 0xFFFF
#define defaultNaNExtF80UI0 UINT64_C( 0xC000000000000000 )
/*----------------------------------------------------------------------------
| Returns true when the 80-bit unsigned integer formed from concatenating
| 16-bit `uiA64' and 64-bit `uiA0' has the bit pattern of an 80-bit extended
| floating-point signaling NaN.
| Note: This macro evaluates its arguments more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNExtF80UI( uiA64, uiA0 ) ((((uiA64) & 0x7FFF) == 0x7FFF) && ! ((uiA0) & UINT64_C( 0x4000000000000000 )) && ((uiA0) & UINT64_C( 0x3FFFFFFFFFFFFFFF )))
#ifdef SOFTFLOAT_FAST_INT64
/*----------------------------------------------------------------------------
| The following functions are needed only when `SOFTFLOAT_FAST_INT64' is
| defined.
*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
| Assuming the unsigned integer formed from concatenating `uiA64' and `uiA0'
| has the bit pattern of an 80-bit extended floating-point NaN, converts
| this NaN to the common NaN form, and stores the resulting common NaN at the
| location pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_extF80UIToCommonNaN(
uint_fast16_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
| floating-point NaN, and returns the bit pattern of this value as an unsigned
| integer.
*----------------------------------------------------------------------------*/
struct uint128 softfloat_commonNaNToExtF80UI( const struct commonNaN *aPtr );
/*----------------------------------------------------------------------------
| Interpreting the unsigned integer formed from concatenating `uiA64' and
| `uiA0' as an 80-bit extended floating-point value, and likewise interpreting
| the unsigned integer formed from concatenating `uiB64' and `uiB0' as another
| 80-bit extended floating-point value, and assuming at least on of these
| floating-point values is a NaN, returns the bit pattern of the combined NaN
| result. If either original floating-point value is a signaling NaN, the
| invalid exception is raised.
*----------------------------------------------------------------------------*/
struct uint128
softfloat_propagateNaNExtF80UI(
uint_fast16_t uiA64,
uint_fast64_t uiA0,
uint_fast16_t uiB64,
uint_fast64_t uiB0
);
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 128-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF128UI64 UINT64_C( 0xFFFF800000000000 )
#define defaultNaNF128UI0 UINT64_C( 0 )
/*----------------------------------------------------------------------------
| Returns true when the 128-bit unsigned integer formed from concatenating
| 64-bit `uiA64' and 64-bit `uiA0' has the bit pattern of a 128-bit floating-
| point signaling NaN.
| Note: This macro evaluates its arguments more than once.
*----------------------------------------------------------------------------*/
#define softfloat_isSigNaNF128UI( uiA64, uiA0 ) ((((uiA64) & UINT64_C( 0x7FFF800000000000 )) == UINT64_C( 0x7FFF000000000000 )) && ((uiA0) || ((uiA64) & UINT64_C( 0x00007FFFFFFFFFFF ))))
/*----------------------------------------------------------------------------
| Assuming the unsigned integer formed from concatenating `uiA64' and `uiA0'
| has the bit pattern of a 128-bit floating-point NaN, converts this NaN to
| the common NaN form, and stores the resulting common NaN at the location
| pointed to by `zPtr'. If the NaN is a signaling NaN, the invalid exception
| is raised.
*----------------------------------------------------------------------------*/
void
softfloat_f128UIToCommonNaN(
uint_fast64_t uiA64, uint_fast64_t uiA0, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
| NaN, and returns the bit pattern of this value as an unsigned integer.
*----------------------------------------------------------------------------*/
struct uint128 softfloat_commonNaNToF128UI( const struct commonNaN * );
/*----------------------------------------------------------------------------
| Interpreting the unsigned integer formed from concatenating `uiA64' and
| `uiA0' as a 128-bit floating-point value, and likewise interpreting the
| unsigned integer formed from concatenating `uiB64' and `uiB0' as another
| 128-bit floating-point value, and assuming at least on of these floating-
| point values is a NaN, returns the bit pattern of the combined NaN result.
| If either original floating-point value is a signaling NaN, the invalid
| exception is raised.
*----------------------------------------------------------------------------*/
struct uint128
softfloat_propagateNaNF128UI(
uint_fast64_t uiA64,
uint_fast64_t uiA0,
uint_fast64_t uiB64,
uint_fast64_t uiB0
);
#else
/*----------------------------------------------------------------------------
| The following functions are needed only when `SOFTFLOAT_FAST_INT64' is not
| defined.
*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------
| Assuming the 80-bit extended floating-point value pointed to by `aSPtr' is
| a NaN, converts this NaN to the common NaN form, and stores the resulting
| common NaN at the location pointed to by `zPtr'. If the NaN is a signaling
| NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_extF80MToCommonNaN(
const struct extFloat80M *aSPtr, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
| floating-point NaN, and stores this NaN at the location pointed to by
| `zSPtr'.
*----------------------------------------------------------------------------*/
void
softfloat_commonNaNToExtF80M(
const struct commonNaN *aPtr, struct extFloat80M *zSPtr );
/*----------------------------------------------------------------------------
| Assuming at least one of the two 80-bit extended floating-point values
| pointed to by `aSPtr' and `bSPtr' is a NaN, stores the combined NaN result
| at the location pointed to by `zSPtr'. If either original floating-point
| value is a signaling NaN, the invalid exception is raised.
*----------------------------------------------------------------------------*/
void
softfloat_propagateNaNExtF80M(
const struct extFloat80M *aSPtr,
const struct extFloat80M *bSPtr,
struct extFloat80M *zSPtr
);
/*----------------------------------------------------------------------------
| The bit pattern for a default generated 128-bit floating-point NaN.
*----------------------------------------------------------------------------*/
#define defaultNaNF128UI96 0xFFFF8000
#define defaultNaNF128UI64 0
#define defaultNaNF128UI32 0
#define defaultNaNF128UI0 0
/*----------------------------------------------------------------------------
| Assuming the 128-bit floating-point value pointed to by `aWPtr' is a NaN,
| converts this NaN to the common NaN form, and stores the resulting common
| NaN at the location pointed to by `zPtr'. If the NaN is a signaling NaN,
| the invalid exception is raised. Argument `aWPtr' points to an array of
| four 32-bit elements that concatenate in the platform's normal endian order
| to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_f128MToCommonNaN( const uint32_t *aWPtr, struct commonNaN *zPtr );
/*----------------------------------------------------------------------------
| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
| NaN, and stores this NaN at the location pointed to by `zWPtr'. Argument
| `zWPtr' points to an array of four 32-bit elements that concatenate in the
| platform's normal endian order to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_commonNaNToF128M( const struct commonNaN *aPtr, uint32_t *zWPtr );
/*----------------------------------------------------------------------------
| Assuming at least one of the two 128-bit floating-point values pointed to by
| `aWPtr' and `bWPtr' is a NaN, stores the combined NaN result at the location
| pointed to by `zWPtr'. If either original floating-point value is a
| signaling NaN, the invalid exception is raised. Each of `aWPtr', `bWPtr',
| and `zWPtr' points to an array of four 32-bit elements that concatenate in
| the platform's normal endian order to form a 128-bit floating-point value.
*----------------------------------------------------------------------------*/
void
softfloat_propagateNaNF128M(
const uint32_t *aWPtr, const uint32_t *bWPtr, uint32_t *zWPtr );
#endif
#endif
deps/SoftFloat-3d/source/extF80M_add.c
Vendored
+100
View File
@@ -0,0 +1,100 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include "platform.h"
#include "internals.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
void
extF80M_add(
const extFloat80_t *aPtr, const extFloat80_t *bPtr, extFloat80_t *zPtr )
{
const struct extFloat80M *aSPtr, *bSPtr;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
bool signA;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
bool signB;
#if ! defined INLINE_LEVEL || (INLINE_LEVEL < 2)
extFloat80_t
(*magsFuncPtr)(
uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );
#endif
aSPtr = (const struct extFloat80M *) aPtr;
bSPtr = (const struct extFloat80M *) bPtr;
uiA64 = aSPtr->signExp;
uiA0 = aSPtr->signif;
signA = signExtF80UI64( uiA64 );
uiB64 = bSPtr->signExp;
uiB0 = bSPtr->signif;
signB = signExtF80UI64( uiB64 );
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
if ( signA == signB ) {
*zPtr = softfloat_addMagsExtF80( uiA64, uiA0, uiB64, uiB0, signA );
} else {
*zPtr = softfloat_subMagsExtF80( uiA64, uiA0, uiB64, uiB0, signA );
}
#else
magsFuncPtr =
(signA == signB) ? softfloat_addMagsExtF80 : softfloat_subMagsExtF80;
*zPtr = (*magsFuncPtr)( uiA64, uiA0, uiB64, uiB0, signA );
#endif
}
#else
void
extF80M_add(
const extFloat80_t *aPtr, const extFloat80_t *bPtr, extFloat80_t *zPtr )
{
softfloat_addExtF80M(
(const struct extFloat80M *) aPtr,
(const struct extFloat80M *) bPtr,
(struct extFloat80M *) zPtr,
false
);
}
#endif
deps/SoftFloat-3d/source/extF80M_div.c
Vendored
+194
View File
@@ -0,0 +1,194 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
void
extF80M_div(
const extFloat80_t *aPtr, const extFloat80_t *bPtr, extFloat80_t *zPtr )
{
*zPtr = extF80_div( *aPtr, *bPtr );
}
#else
void
extF80M_div(
const extFloat80_t *aPtr, const extFloat80_t *bPtr, extFloat80_t *zPtr )
{
const struct extFloat80M *aSPtr, *bSPtr;
struct extFloat80M *zSPtr;
uint_fast16_t uiA64;
int32_t expA;
uint_fast16_t uiB64;
int32_t expB;
bool signZ;
uint64_t sigA, x64;
int32_t expZ;
int shiftDist;
uint32_t y[3], recip32, sigB[3];
int ix;
uint32_t q, qs[2];
uint_fast16_t uiZ64;
uint64_t uiZ0;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
bSPtr = (const struct extFloat80M *) bPtr;
zSPtr = (struct extFloat80M *) zPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
expA = expExtF80UI64( uiA64 );
uiB64 = bSPtr->signExp;
expB = expExtF80UI64( uiB64 );
signZ = signExtF80UI64( uiA64 ) ^ signExtF80UI64( uiB64 );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( (expA == 0x7FFF) || (expB == 0x7FFF) ) {
if ( softfloat_tryPropagateNaNExtF80M( aSPtr, bSPtr, zSPtr ) ) return;
if ( expA == 0x7FFF ) {
if ( expB == 0x7FFF ) goto invalid;
goto infinity;
}
goto zero;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
sigA = aSPtr->signif;
x64 = bSPtr->signif;
if ( ! expB ) expB = 1;
if ( ! (x64 & UINT64_C( 0x8000000000000000 )) ) {
if ( ! x64 ) {
if ( ! sigA ) goto invalid;
softfloat_raiseFlags( softfloat_flag_infinite );
goto infinity;
}
expB += softfloat_normExtF80SigM( &x64 );
}
if ( ! expA ) expA = 1;
if ( ! (sigA & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sigA ) goto zero;
expA += softfloat_normExtF80SigM( &sigA );
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
expZ = expA - expB + 0x3FFF;
shiftDist = 29;
if ( sigA < x64 ) {
--expZ;
shiftDist = 30;
}
softfloat_shortShiftLeft64To96M( sigA, shiftDist, y );
recip32 = softfloat_approxRecip32_1( x64>>32 );
sigB[indexWord( 3, 0 )] = (uint32_t) x64<<30;
x64 >>= 2;
sigB[indexWord( 3, 2 )] = x64>>32;
sigB[indexWord( 3, 1 )] = x64;
ix = 2;
for (;;) {
x64 = (uint64_t) y[indexWordHi( 3 )] * recip32;
q = (x64 + 0x80000000)>>32;
--ix;
if ( ix < 0 ) break;
softfloat_remStep96MBy32( y, 29, sigB, q, y );
if ( y[indexWordHi( 3 )] & 0x80000000 ) {
--q;
softfloat_add96M( y, sigB, y );
}
qs[ix] = q;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ((q + 1) & 0x3FFFFF) < 2 ) {
softfloat_remStep96MBy32( y, 29, sigB, q, y );
if ( y[indexWordHi( 3 )] & 0x80000000 ) {
--q;
softfloat_add96M( y, sigB, y );
} else if ( softfloat_compare96M( sigB, y ) <= 0 ) {
++q;
softfloat_sub96M( y, sigB, y );
}
if (
y[indexWordLo( 3 )] || y[indexWord( 3, 1 )] || y[indexWord( 3, 2 )]
) {
q |= 1;
}
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
x64 = (uint64_t) q<<9;
y[indexWord( 3, 0 )] = x64;
x64 = ((uint64_t) qs[0]<<6) + (x64>>32);
y[indexWord( 3, 1 )] = x64;
y[indexWord( 3, 2 )] = (qs[1]<<3) + (x64>>32);
softfloat_roundPackMToExtF80M(
signZ, expZ, y, extF80_roundingPrecision, zSPtr );
return;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_invalidExtF80M( zSPtr );
return;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
infinity:
uiZ64 = packToExtF80UI64( signZ, 0x7FFF );
uiZ0 = UINT64_C( 0x8000000000000000 );
goto uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zero:
uiZ64 = packToExtF80UI64( signZ, 0 );
uiZ0 = 0;
uiZ:
zSPtr->signExp = uiZ64;
zSPtr->signif = uiZ0;
}
#endif
deps/SoftFloat-3d/source/extF80M_eq.c
Vendored
+98
View File
@@ -0,0 +1,98 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
bool extF80M_eq( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
return extF80_eq( *aPtr, *bPtr );
}
#else
bool extF80M_eq( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
const struct extFloat80M *aSPtr, *bSPtr;
uint_fast16_t uiA64;
uint64_t uiA0;
uint_fast16_t uiB64;
uint64_t uiB0;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
bSPtr = (const struct extFloat80M *) bPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
uiA0 = aSPtr->signif;
uiB64 = bSPtr->signExp;
uiB0 = bSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
if (
softfloat_isSigNaNExtF80UI( uiA64, uiA0 )
|| softfloat_isSigNaNExtF80UI( uiB64, uiB0 )
) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
return false;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( uiA0 == uiB0 ) {
return (uiA64 == uiB64) || ! uiA0;
} else {
if ( ! ((uiA0 & uiB0) & UINT64_C( 0x8000000000000000 )) ) {
return ! softfloat_compareNonnormExtF80M( aSPtr, bSPtr );
}
return false;
}
}
#endif
deps/SoftFloat-3d/source/extF80M_eq_signaling.c
Vendored
+92
View File
@@ -0,0 +1,92 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
bool extF80M_eq_signaling( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
return extF80_eq_signaling( *aPtr, *bPtr );
}
#else
bool extF80M_eq_signaling( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
const struct extFloat80M *aSPtr, *bSPtr;
uint_fast16_t uiA64;
uint64_t uiA0;
uint_fast16_t uiB64;
uint64_t uiB0;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
bSPtr = (const struct extFloat80M *) bPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
uiA0 = aSPtr->signif;
uiB64 = bSPtr->signExp;
uiB0 = bSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
return false;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( uiA0 == uiB0 ) {
return (uiA64 == uiB64) || ! uiA0;
} else {
if ( ! ((uiA0 & uiB0) & UINT64_C( 0x8000000000000000 )) ) {
return ! softfloat_compareNonnormExtF80M( aSPtr, bSPtr );
}
return false;
}
}
#endif
deps/SoftFloat-3d/source/extF80M_le.c
Vendored
+106
View File
@@ -0,0 +1,106 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
bool extF80M_le( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
return extF80_le( *aPtr, *bPtr );
}
#else
bool extF80M_le( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
const struct extFloat80M *aSPtr, *bSPtr;
uint_fast16_t uiA64;
uint64_t uiA0;
uint_fast16_t uiB64;
uint64_t uiB0;
bool signA, ltMags;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
bSPtr = (const struct extFloat80M *) bPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
uiA0 = aSPtr->signif;
uiB64 = bSPtr->signExp;
uiB0 = bSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
return false;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
signA = signExtF80UI64( uiA64 );
if ( (uiA64 ^ uiB64) & 0x8000 ) {
/*--------------------------------------------------------------------
| Signs are different.
*--------------------------------------------------------------------*/
return signA || ! (uiA0 | uiB0);
} else {
/*--------------------------------------------------------------------
| Signs are the same.
*--------------------------------------------------------------------*/
if ( ! ((uiA0 & uiB0) & UINT64_C( 0x8000000000000000 )) ) {
return (softfloat_compareNonnormExtF80M( aSPtr, bSPtr ) <= 0);
}
if ( uiA64 == uiB64 ) {
if ( uiA0 == uiB0 ) return true;
ltMags = (uiA0 < uiB0);
} else {
ltMags = (uiA64 < uiB64);
}
return signA ^ ltMags;
}
}
#endif
deps/SoftFloat-3d/source/extF80M_le_quiet.c
Vendored
+112
View File
@@ -0,0 +1,112 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
bool extF80M_le_quiet( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
return extF80_le_quiet( *aPtr, *bPtr );
}
#else
bool extF80M_le_quiet( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
const struct extFloat80M *aSPtr, *bSPtr;
uint_fast16_t uiA64;
uint64_t uiA0;
uint_fast16_t uiB64;
uint64_t uiB0;
bool signA, ltMags;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
bSPtr = (const struct extFloat80M *) bPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
uiA0 = aSPtr->signif;
uiB64 = bSPtr->signExp;
uiB0 = bSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
if (
softfloat_isSigNaNExtF80UI( uiA64, uiA0 )
|| softfloat_isSigNaNExtF80UI( uiB64, uiB0 )
) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
return false;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
signA = signExtF80UI64( uiA64 );
if ( (uiA64 ^ uiB64) & 0x8000 ) {
/*--------------------------------------------------------------------
| Signs are different.
*--------------------------------------------------------------------*/
return signA || ! (uiA0 | uiB0);
} else {
/*--------------------------------------------------------------------
| Signs are the same.
*--------------------------------------------------------------------*/
if ( ! ((uiA0 & uiB0) & UINT64_C( 0x8000000000000000 )) ) {
return (softfloat_compareNonnormExtF80M( aSPtr, bSPtr ) <= 0);
}
if ( uiA64 == uiB64 ) {
if ( uiA0 == uiB0 ) return true;
ltMags = (uiA0 < uiB0);
} else {
ltMags = (uiA64 < uiB64);
}
return signA ^ ltMags;
}
}
#endif
deps/SoftFloat-3d/source/extF80M_lt.c
Vendored
+106
View File
@@ -0,0 +1,106 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
bool extF80M_lt( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
return extF80_lt( *aPtr, *bPtr );
}
#else
bool extF80M_lt( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
const struct extFloat80M *aSPtr, *bSPtr;
uint_fast16_t uiA64;
uint64_t uiA0;
uint_fast16_t uiB64;
uint64_t uiB0;
bool signA, ltMags;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
bSPtr = (const struct extFloat80M *) bPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
uiA0 = aSPtr->signif;
uiB64 = bSPtr->signExp;
uiB0 = bSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
return false;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
signA = signExtF80UI64( uiA64 );
if ( (uiA64 ^ uiB64) & 0x8000 ) {
/*--------------------------------------------------------------------
| Signs are different.
*--------------------------------------------------------------------*/
return signA && ((uiA0 | uiB0) != 0);
} else {
/*--------------------------------------------------------------------
| Signs are the same.
*--------------------------------------------------------------------*/
if ( ! ((uiA0 & uiB0) & UINT64_C( 0x8000000000000000 )) ) {
return (softfloat_compareNonnormExtF80M( aSPtr, bSPtr ) < 0);
}
if ( uiA64 == uiB64 ) {
if ( uiA0 == uiB0 ) return false;
ltMags = (uiA0 < uiB0);
} else {
ltMags = (uiA64 < uiB64);
}
return signA ^ ltMags;
}
}
#endif
deps/SoftFloat-3d/source/extF80M_lt_quiet.c
Vendored
+112
View File
@@ -0,0 +1,112 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
bool extF80M_lt_quiet( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
return extF80_lt_quiet( *aPtr, *bPtr );
}
#else
bool extF80M_lt_quiet( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
{
const struct extFloat80M *aSPtr, *bSPtr;
uint_fast16_t uiA64;
uint64_t uiA0;
uint_fast16_t uiB64;
uint64_t uiB0;
bool signA, ltMags;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
bSPtr = (const struct extFloat80M *) bPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
uiA0 = aSPtr->signif;
uiB64 = bSPtr->signExp;
uiB0 = bSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
if (
softfloat_isSigNaNExtF80UI( uiA64, uiA0 )
|| softfloat_isSigNaNExtF80UI( uiB64, uiB0 )
) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
return false;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
signA = signExtF80UI64( uiA64 );
if ( (uiA64 ^ uiB64) & 0x8000 ) {
/*--------------------------------------------------------------------
| Signs are different.
*--------------------------------------------------------------------*/
return signA && ((uiA0 | uiB0) != 0);
} else {
/*--------------------------------------------------------------------
| Signs are the same.
*--------------------------------------------------------------------*/
if ( ! ((uiA0 & uiB0) & UINT64_C( 0x8000000000000000 )) ) {
return (softfloat_compareNonnormExtF80M( aSPtr, bSPtr ) < 0);
}
if ( uiA64 == uiB64 ) {
if ( uiA0 == uiB0 ) return false;
ltMags = (uiA0 < uiB0);
} else {
ltMags = (uiA64 < uiB64);
}
return signA ^ ltMags;
}
}
#endif
deps/SoftFloat-3d/source/extF80M_mul.c
Vendored
+139
View File
@@ -0,0 +1,139 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
void
extF80M_mul(
const extFloat80_t *aPtr, const extFloat80_t *bPtr, extFloat80_t *zPtr )
{
*zPtr = extF80_mul( *aPtr, *bPtr );
}
#else
void
extF80M_mul(
const extFloat80_t *aPtr, const extFloat80_t *bPtr, extFloat80_t *zPtr )
{
const struct extFloat80M *aSPtr, *bSPtr;
struct extFloat80M *zSPtr;
uint_fast16_t uiA64;
int32_t expA;
uint_fast16_t uiB64;
int32_t expB;
bool signZ;
uint_fast16_t exp, uiZ64;
uint64_t uiZ0, sigA, sigB;
int32_t expZ;
uint32_t sigProd[4], *extSigZPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
bSPtr = (const struct extFloat80M *) bPtr;
zSPtr = (struct extFloat80M *) zPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
expA = expExtF80UI64( uiA64 );
uiB64 = bSPtr->signExp;
expB = expExtF80UI64( uiB64 );
signZ = signExtF80UI64( uiA64 ) ^ signExtF80UI64( uiB64 );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( (expA == 0x7FFF) || (expB == 0x7FFF) ) {
if ( softfloat_tryPropagateNaNExtF80M( aSPtr, bSPtr, zSPtr ) ) return;
if (
(! aSPtr->signif && (expA != 0x7FFF))
|| (! bSPtr->signif && (expB != 0x7FFF))
) {
softfloat_invalidExtF80M( zSPtr );
return;
}
uiZ64 = packToExtF80UI64( signZ, 0x7FFF );
uiZ0 = UINT64_C( 0x8000000000000000 );
goto uiZ;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! expA ) expA = 1;
sigA = aSPtr->signif;
if ( ! (sigA & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sigA ) goto zero;
expA += softfloat_normExtF80SigM( &sigA );
}
if ( ! expB ) expB = 1;
sigB = bSPtr->signif;
if ( ! (sigB & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sigB ) goto zero;
expB += softfloat_normExtF80SigM( &sigB );
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
expZ = expA + expB - 0x3FFE;
softfloat_mul64To128M( sigA, sigB, sigProd );
if ( sigProd[indexWordLo( 4 )] ) sigProd[indexWord( 4, 1 )] |= 1;
extSigZPtr = &sigProd[indexMultiwordHi( 4, 3 )];
if ( sigProd[indexWordHi( 4 )] < 0x80000000 ) {
--expZ;
softfloat_add96M( extSigZPtr, extSigZPtr, extSigZPtr );
}
softfloat_roundPackMToExtF80M(
signZ, expZ, extSigZPtr, extF80_roundingPrecision, zSPtr );
return;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zero:
uiZ64 = packToExtF80UI64( signZ, 0 );
uiZ0 = 0;
uiZ:
zSPtr->signExp = uiZ64;
zSPtr->signif = uiZ0;
}
#endif
deps/SoftFloat-3d/source/extF80M_rem.c
Vendored
+204
View File
@@ -0,0 +1,204 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
void
extF80M_rem(
const extFloat80_t *aPtr, const extFloat80_t *bPtr, extFloat80_t *zPtr )
{
*zPtr = extF80_rem( *aPtr, *bPtr );
}
#else
void
extF80M_rem(
const extFloat80_t *aPtr, const extFloat80_t *bPtr, extFloat80_t *zPtr )
{
const struct extFloat80M *aSPtr, *bSPtr;
struct extFloat80M *zSPtr;
uint_fast16_t uiA64;
int32_t expA, expB;
uint64_t x64;
bool signRem;
uint64_t sigA;
int32_t expDiff;
uint32_t rem[3], x[3], sig32B, q, recip32, rem2[3], *remPtr, *altRemPtr;
uint32_t *newRemPtr, wordMeanRem;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
bSPtr = (const struct extFloat80M *) bPtr;
zSPtr = (struct extFloat80M *) zPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
expA = expExtF80UI64( uiA64 );
expB = expExtF80UI64( bSPtr->signExp );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( (expA == 0x7FFF) || (expB == 0x7FFF) ) {
if ( softfloat_tryPropagateNaNExtF80M( aSPtr, bSPtr, zSPtr ) ) return;
if ( expA == 0x7FFF ) goto invalid;
/*--------------------------------------------------------------------
| If we get here, then argument b is an infinity and `expB' is 0x7FFF;
| Doubling `expB' is an easy way to ensure that `expDiff' later is
| less than -1, which will result in returning a canonicalized version
| of argument a.
*--------------------------------------------------------------------*/
expB += expB;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! expB ) expB = 1;
x64 = bSPtr->signif;
if ( ! (x64 & UINT64_C( 0x8000000000000000 )) ) {
if ( ! x64 ) goto invalid;
expB += softfloat_normExtF80SigM( &x64 );
}
signRem = signExtF80UI64( uiA64 );
if ( ! expA ) expA = 1;
sigA = aSPtr->signif;
if ( ! (sigA & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sigA ) {
expA = 0;
goto copyA;
}
expA += softfloat_normExtF80SigM( &sigA );
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
expDiff = expA - expB;
if ( expDiff < -1 ) goto copyA;
rem[indexWord( 3, 2 )] = sigA>>34;
rem[indexWord( 3, 1 )] = sigA>>2;
rem[indexWord( 3, 0 )] = (uint32_t) sigA<<30;
x[indexWord( 3, 0 )] = (uint32_t) x64<<30;
sig32B = x64>>32;
x64 >>= 2;
x[indexWord( 3, 2 )] = x64>>32;
x[indexWord( 3, 1 )] = x64;
if ( expDiff < 1 ) {
if ( expDiff ) {
--expB;
softfloat_add96M( x, x, x );
q = 0;
} else {
q = (softfloat_compare96M( x, rem ) <= 0);
if ( q ) softfloat_sub96M( rem, x, rem );
}
} else {
recip32 = softfloat_approxRecip32_1( sig32B );
expDiff -= 30;
for (;;) {
x64 = (uint64_t) rem[indexWordHi( 3 )] * recip32;
if ( expDiff < 0 ) break;
q = (x64 + 0x80000000)>>32;
softfloat_remStep96MBy32( rem, 29, x, q, rem );
if ( rem[indexWordHi( 3 )] & 0x80000000 ) {
softfloat_add96M( rem, x, rem );
}
expDiff -= 29;
}
/*--------------------------------------------------------------------
| (`expDiff' cannot be less than -29 here.)
*--------------------------------------------------------------------*/
q = (uint32_t) (x64>>32)>>(~expDiff & 31);
softfloat_remStep96MBy32( rem, expDiff + 30, x, q, rem );
if ( rem[indexWordHi( 3 )] & 0x80000000 ) {
remPtr = rem;
altRemPtr = rem2;
softfloat_add96M( remPtr, x, altRemPtr );
goto selectRem;
}
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
remPtr = rem;
altRemPtr = rem2;
do {
++q;
newRemPtr = altRemPtr;
softfloat_sub96M( remPtr, x, newRemPtr );
altRemPtr = remPtr;
remPtr = newRemPtr;
} while ( ! (remPtr[indexWordHi( 3 )] & 0x80000000) );
selectRem:
softfloat_add96M( remPtr, altRemPtr, x );
wordMeanRem = x[indexWordHi( 3 )];
if (
(wordMeanRem & 0x80000000)
|| (! wordMeanRem && (q & 1) && ! x[indexWord( 3, 0 )]
&& ! x[indexWord( 3, 1 )])
) {
remPtr = altRemPtr;
}
if ( remPtr[indexWordHi( 3 )] & 0x80000000 ) {
signRem = ! signRem;
softfloat_negX96M( remPtr );
}
softfloat_normRoundPackMToExtF80M( signRem, expB + 2, remPtr, 80, zSPtr );
return;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_invalidExtF80M( zSPtr );
return;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
copyA:
if ( expA < 1 ) {
sigA >>= 1 - expA;
expA = 0;
}
zSPtr->signExp = packToExtF80UI64( signRem, expA );
zSPtr->signif = sigA;
}
#endif
deps/SoftFloat-3d/source/extF80M_roundToInt.c
Vendored
+169
View File
@@ -0,0 +1,169 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2017 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
void
extF80M_roundToInt(
const extFloat80_t *aPtr,
uint_fast8_t roundingMode,
bool exact,
extFloat80_t *zPtr
)
{
*zPtr = extF80_roundToInt( *aPtr, roundingMode, exact );
}
#else
void
extF80M_roundToInt(
const extFloat80_t *aPtr,
uint_fast8_t roundingMode,
bool exact,
extFloat80_t *zPtr
)
{
const struct extFloat80M *aSPtr;
struct extFloat80M *zSPtr;
uint_fast16_t uiA64, signUI64;
int32_t exp;
uint64_t sigA;
uint_fast16_t uiZ64;
uint64_t sigZ, lastBitMask, roundBitsMask;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
zSPtr = (struct extFloat80M *) zPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
signUI64 = uiA64 & packToExtF80UI64( 1, 0 );
exp = expExtF80UI64( uiA64 );
sigA = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! (sigA & UINT64_C( 0x8000000000000000 )) && (exp != 0x7FFF) ) {
if ( ! sigA ) {
uiZ64 = signUI64;
sigZ = 0;
goto uiZ;
}
exp += softfloat_normExtF80SigM( &sigA );
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( exp <= 0x3FFE ) {
if ( exact ) softfloat_exceptionFlags |= softfloat_flag_inexact;
switch ( roundingMode ) {
case softfloat_round_near_even:
if ( ! (sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF )) ) break;
case softfloat_round_near_maxMag:
if ( exp == 0x3FFE ) goto mag1;
break;
case softfloat_round_min:
if ( signUI64 ) goto mag1;
break;
case softfloat_round_max:
if ( ! signUI64 ) goto mag1;
break;
}
uiZ64 = signUI64;
sigZ = 0;
goto uiZ;
mag1:
uiZ64 = signUI64 | 0x3FFF;
sigZ = UINT64_C( 0x8000000000000000 );
goto uiZ;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( 0x403E <= exp ) {
if ( exp == 0x7FFF ) {
if ( sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
softfloat_propagateNaNExtF80M( aSPtr, 0, zSPtr );
return;
}
sigZ = UINT64_C( 0x8000000000000000 );
} else {
sigZ = sigA;
}
uiZ64 = signUI64 | exp;
goto uiZ;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiZ64 = signUI64 | exp;
lastBitMask = (uint64_t) 1<<(0x403E - exp);
roundBitsMask = lastBitMask - 1;
sigZ = sigA;
if ( roundingMode == softfloat_round_near_maxMag ) {
sigZ += lastBitMask>>1;
} else if ( roundingMode == softfloat_round_near_even ) {
sigZ += lastBitMask>>1;
if ( ! (sigZ & roundBitsMask) ) sigZ &= ~lastBitMask;
} else if (
roundingMode == (signUI64 ? softfloat_round_min : softfloat_round_max)
) {
sigZ += roundBitsMask;
}
sigZ &= ~roundBitsMask;
if ( ! sigZ ) {
++uiZ64;
sigZ = UINT64_C( 0x8000000000000000 );
}
if ( exact && (sigZ != sigA) ) {
softfloat_exceptionFlags |= softfloat_flag_inexact;
}
uiZ:
zSPtr->signExp = uiZ64;
zSPtr->signif = sigZ;
return;
}
#endif
deps/SoftFloat-3d/source/extF80M_sqrt.c
Vendored
+180
View File
@@ -0,0 +1,180 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2017 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
void extF80M_sqrt( const extFloat80_t *aPtr, extFloat80_t *zPtr )
{
*zPtr = extF80_sqrt( *aPtr );
}
#else
void extF80M_sqrt( const extFloat80_t *aPtr, extFloat80_t *zPtr )
{
const struct extFloat80M *aSPtr;
struct extFloat80M *zSPtr;
uint_fast16_t uiA64, signUI64;
int32_t expA;
uint64_t rem64;
int32_t expZ;
uint32_t rem96[3], sig32A, recipSqrt32, sig32Z, q;
uint64_t sig64Z, x64;
uint32_t rem32, term[4], rem[4], extSigZ[3];
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
zSPtr = (struct extFloat80M *) zPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
signUI64 = uiA64 & packToExtF80UI64( 1, 0 );
expA = expExtF80UI64( uiA64 );
rem64 = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( expA == 0x7FFF ) {
if ( rem64 & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
softfloat_propagateNaNExtF80M( aSPtr, 0, zSPtr );
return;
}
if ( signUI64 ) goto invalid;
rem64 = UINT64_C( 0x8000000000000000 );
goto copyA;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! expA ) expA = 1;
if ( ! (rem64 & UINT64_C( 0x8000000000000000 )) ) {
if ( ! rem64 ) {
uiA64 = signUI64;
goto copyA;
}
expA += softfloat_normExtF80SigM( &rem64 );
}
if ( signUI64 ) goto invalid;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
expZ = ((expA - 0x3FFF)>>1) + 0x3FFF;
expA &= 1;
softfloat_shortShiftLeft64To96M( rem64, 30 - expA, rem96 );
sig32A = rem64>>32;
recipSqrt32 = softfloat_approxRecipSqrt32_1( expA, sig32A );
sig32Z = ((uint64_t) sig32A * recipSqrt32)>>32;
if ( expA ) sig32Z >>= 1;
rem64 =
((uint64_t) rem96[indexWord( 3, 2 )]<<32 | rem96[indexWord( 3, 1 )])
- (uint64_t) sig32Z * sig32Z;
rem96[indexWord( 3, 2 )] = rem64>>32;
rem96[indexWord( 3, 1 )] = rem64;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
q = ((uint32_t) (rem64>>2) * (uint64_t) recipSqrt32)>>32;
sig64Z = ((uint64_t) sig32Z<<32) + ((uint64_t) q<<3);
term[indexWord( 3, 2 )] = 0;
/*------------------------------------------------------------------------
| (Repeating this loop is a rare occurrence.)
*------------------------------------------------------------------------*/
for (;;) {
x64 = ((uint64_t) sig32Z<<32) + sig64Z;
term[indexWord( 3, 1 )] = x64>>32;
term[indexWord( 3, 0 )] = x64;
softfloat_remStep96MBy32(
rem96, 29, term, q, &rem[indexMultiwordHi( 4, 3 )] );
rem32 = rem[indexWord( 4, 3 )];
if ( ! (rem32 & 0x80000000) ) break;
--q;
sig64Z -= 1<<3;
}
rem64 = (uint64_t) rem32<<32 | rem[indexWord( 4, 2 )];
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
q = (((uint32_t) (rem64>>2) * (uint64_t) recipSqrt32)>>32) + 2;
if ( rem64>>34 ) q += recipSqrt32;
x64 = (uint64_t) q<<7;
extSigZ[indexWord( 3, 0 )] = x64;
x64 = (sig64Z<<1) + (x64>>32);
extSigZ[indexWord( 3, 2 )] = x64>>32;
extSigZ[indexWord( 3, 1 )] = x64;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( (q & 0xFFFFFF) <= 2 ) {
q &= ~(uint32_t) 0xFFFF;
extSigZ[indexWordLo( 3 )] = q<<7;
x64 = sig64Z + (q>>27);
term[indexWord( 4, 3 )] = 0;
term[indexWord( 4, 2 )] = x64>>32;
term[indexWord( 4, 1 )] = x64;
term[indexWord( 4, 0 )] = q<<5;
rem[indexWord( 4, 0 )] = 0;
softfloat_remStep128MBy32( rem, 28, term, q, rem );
q = rem[indexWordHi( 4 )];
if ( q & 0x80000000 ) {
softfloat_sub1X96M( extSigZ );
} else {
if ( q || rem[indexWord( 4, 1 )] || rem[indexWord( 4, 2 )] ) {
extSigZ[indexWordLo( 3 )] |= 1;
}
}
}
softfloat_roundPackMToExtF80M(
0, expZ, extSigZ, extF80_roundingPrecision, zSPtr );
return;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_invalidExtF80M( zSPtr );
return;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
copyA:
zSPtr->signExp = uiA64;
zSPtr->signif = rem64;
}
#endif
deps/SoftFloat-3d/source/extF80M_sub.c
Vendored
+100
View File
@@ -0,0 +1,100 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include "platform.h"
#include "internals.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
void
extF80M_sub(
const extFloat80_t *aPtr, const extFloat80_t *bPtr, extFloat80_t *zPtr )
{
const struct extFloat80M *aSPtr, *bSPtr;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
bool signA;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
bool signB;
#if ! defined INLINE_LEVEL || (INLINE_LEVEL < 2)
extFloat80_t
(*magsFuncPtr)(
uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );
#endif
aSPtr = (const struct extFloat80M *) aPtr;
bSPtr = (const struct extFloat80M *) bPtr;
uiA64 = aSPtr->signExp;
uiA0 = aSPtr->signif;
signA = signExtF80UI64( uiA64 );
uiB64 = bSPtr->signExp;
uiB0 = bSPtr->signif;
signB = signExtF80UI64( uiB64 );
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
if ( signA == signB ) {
*zPtr = softfloat_subMagsExtF80( uiA64, uiA0, uiB64, uiB0, signA );
} else {
*zPtr = softfloat_addMagsExtF80( uiA64, uiA0, uiB64, uiB0, signA );
}
#else
magsFuncPtr =
(signA == signB) ? softfloat_subMagsExtF80 : softfloat_addMagsExtF80;
*zPtr = (*magsFuncPtr)( uiA64, uiA0, uiB64, uiB0, signA );
#endif
}
#else
void
extF80M_sub(
const extFloat80_t *aPtr, const extFloat80_t *bPtr, extFloat80_t *zPtr )
{
softfloat_addExtF80M(
(const struct extFloat80M *) aPtr,
(const struct extFloat80M *) bPtr,
(struct extFloat80M *) zPtr,
true
);
}
#endif
deps/SoftFloat-3d/source/extF80M_to_f128M.c
Vendored
+125
View File
@@ -0,0 +1,125 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
void extF80M_to_f128M( const extFloat80_t *aPtr, float128_t *zPtr )
{
*zPtr = extF80_to_f128( *aPtr );
}
#else
void extF80M_to_f128M( const extFloat80_t *aPtr, float128_t *zPtr )
{
const struct extFloat80M *aSPtr;
uint32_t *zWPtr;
uint_fast16_t uiA64;
bool sign;
int32_t exp;
uint64_t sig;
struct commonNaN commonNaN;
uint32_t uiZ96;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
zWPtr = (uint32_t *) zPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
sign = signExtF80UI64( uiA64 );
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zWPtr[indexWord( 4, 0 )] = 0;
if ( exp == 0x7FFF ) {
if ( sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
softfloat_extF80MToCommonNaN( aSPtr, &commonNaN );
softfloat_commonNaNToF128M( &commonNaN, zWPtr );
return;
}
uiZ96 = packToF128UI96( sign, 0x7FFF, 0 );
goto uiZ;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( exp ) --exp;
if ( ! (sig & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sig ) {
uiZ96 = packToF128UI96( sign, 0, 0 );
goto uiZ;
}
exp += softfloat_normExtF80SigM( &sig );
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zWPtr[indexWord( 4, 1 )] = (uint32_t) sig<<17;
sig >>= 15;
zWPtr[indexWord( 4, 2 )] = sig;
if ( exp < 0 ) {
zWPtr[indexWordHi( 4 )] = sig>>32;
softfloat_shiftRight96M(
&zWPtr[indexMultiwordHi( 4, 3 )],
-exp,
&zWPtr[indexMultiwordHi( 4, 3 )]
);
exp = 0;
sig = (uint64_t) zWPtr[indexWordHi( 4 )]<<32;
}
zWPtr[indexWordHi( 4 )] = packToF128UI96( sign, exp, sig>>32 );
return;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiZ:
zWPtr[indexWord( 4, 3 )] = uiZ96;
zWPtr[indexWord( 4, 2 )] = 0;
zWPtr[indexWord( 4, 1 )] = 0;
}
#endif
deps/SoftFloat-3d/source/extF80M_to_f16.c
Vendored
+112
View File
@@ -0,0 +1,112 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
float16_t extF80M_to_f16( const extFloat80_t *aPtr )
{
return extF80_to_f16( *aPtr );
}
#else
float16_t extF80M_to_f16( const extFloat80_t *aPtr )
{
const struct extFloat80M *aSPtr;
uint_fast16_t uiA64;
bool sign;
int32_t exp;
uint64_t sig;
struct commonNaN commonNaN;
uint16_t uiZ, sig16;
union ui16_f16 uZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
sign = signExtF80UI64( uiA64 );
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( exp == 0x7FFF ) {
if ( sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
softfloat_extF80MToCommonNaN( aSPtr, &commonNaN );
uiZ = softfloat_commonNaNToF16UI( &commonNaN );
} else {
uiZ = packToF16UI( sign, 0x1F, 0 );
}
goto uiZ;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! (sig & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sig ) {
uiZ = packToF16UI( sign, 0, 0 );
goto uiZ;
}
exp += softfloat_normExtF80SigM( &sig );
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
sig16 = softfloat_shortShiftRightJam64( sig, 49 );
exp -= 0x3FF1;
if ( sizeof (int_fast16_t) < sizeof (int32_t) ) {
if ( exp < -0x40 ) exp = -0x40;
}
return softfloat_roundPackToF16( sign, exp, sig16 );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiZ:
uZ.ui = uiZ;
return uZ.f;
}
#endif
deps/SoftFloat-3d/source/extF80M_to_f32.c
Vendored
+112
View File
@@ -0,0 +1,112 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
float32_t extF80M_to_f32( const extFloat80_t *aPtr )
{
return extF80_to_f32( *aPtr );
}
#else
float32_t extF80M_to_f32( const extFloat80_t *aPtr )
{
const struct extFloat80M *aSPtr;
uint_fast16_t uiA64;
bool sign;
int32_t exp;
uint64_t sig;
struct commonNaN commonNaN;
uint32_t uiZ, sig32;
union ui32_f32 uZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
sign = signExtF80UI64( uiA64 );
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( exp == 0x7FFF ) {
if ( sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
softfloat_extF80MToCommonNaN( aSPtr, &commonNaN );
uiZ = softfloat_commonNaNToF32UI( &commonNaN );
} else {
uiZ = packToF32UI( sign, 0xFF, 0 );
}
goto uiZ;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! (sig & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sig ) {
uiZ = packToF32UI( sign, 0, 0 );
goto uiZ;
}
exp += softfloat_normExtF80SigM( &sig );
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
sig32 = softfloat_shortShiftRightJam64( sig, 33 );
exp -= 0x3F81;
if ( sizeof (int_fast16_t) < sizeof (int32_t) ) {
if ( exp < -0x1000 ) exp = -0x1000;
}
return softfloat_roundPackToF32( sign, exp, sig32 );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiZ:
uZ.ui = uiZ;
return uZ.f;
}
#endif
deps/SoftFloat-3d/source/extF80M_to_f64.c
Vendored
+112
View File
@@ -0,0 +1,112 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
float64_t extF80M_to_f64( const extFloat80_t *aPtr )
{
return extF80_to_f64( *aPtr );
}
#else
float64_t extF80M_to_f64( const extFloat80_t *aPtr )
{
const struct extFloat80M *aSPtr;
uint_fast16_t uiA64;
bool sign;
int32_t exp;
uint64_t sig;
struct commonNaN commonNaN;
uint64_t uiZ;
union ui64_f64 uZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiA64 = aSPtr->signExp;
sign = signExtF80UI64( uiA64 );
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( exp == 0x7FFF ) {
if ( sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
softfloat_extF80MToCommonNaN( aSPtr, &commonNaN );
uiZ = softfloat_commonNaNToF64UI( &commonNaN );
} else {
uiZ = packToF64UI( sign, 0x7FF, 0 );
}
goto uiZ;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! (sig & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sig ) {
uiZ = packToF64UI( sign, 0, 0 );
goto uiZ;
}
exp += softfloat_normExtF80SigM( &sig );
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
sig = softfloat_shortShiftRightJam64( sig, 1 );
exp -= 0x3C01;
if ( sizeof (int_fast16_t) < sizeof (int32_t) ) {
if ( exp < -0x1000 ) exp = -0x1000;
}
return softfloat_roundPackToF64( sign, exp, sig );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiZ:
uZ.ui = uiZ;
return uZ.f;
}
#endif
deps/SoftFloat-3d/source/extF80M_to_i32.c
Vendored
+100
View File
@@ -0,0 +1,100 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
int_fast32_t
extF80M_to_i32(
const extFloat80_t *aPtr, uint_fast8_t roundingMode, bool exact )
{
return extF80_to_i32( *aPtr, roundingMode, exact );
}
#else
int_fast32_t
extF80M_to_i32(
const extFloat80_t *aPtr, uint_fast8_t roundingMode, bool exact )
{
const struct extFloat80M *aSPtr;
uint_fast16_t uiA64;
bool sign;
int32_t exp;
uint64_t sig;
int32_t shiftDist;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
uiA64 = aSPtr->signExp;
sign = signExtF80UI64( uiA64 );
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
shiftDist = 0x4032 - exp;
if ( shiftDist <= 0 ) {
if ( sig>>32 ) goto invalid;
if ( -32 < shiftDist ) {
sig <<= -shiftDist;
} else {
if ( (uint32_t) sig ) goto invalid;
}
} else {
sig = softfloat_shiftRightJam64( sig, shiftDist );
}
return softfloat_roundToI32( sign, sig, roundingMode, exact );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_raiseFlags( softfloat_flag_invalid );
return
(exp == 0x7FFF) && (sig & UINT64_C( 0x7FFFFFFFFFFFFFFF )) ? i32_fromNaN
: sign ? i32_fromNegOverflow : i32_fromPosOverflow;
}
#endif
deps/SoftFloat-3d/source/extF80M_to_i32_r_minMag.c
Vendored
+120
View File
@@ -0,0 +1,120 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
int_fast32_t extF80M_to_i32_r_minMag( const extFloat80_t *aPtr, bool exact )
{
return extF80_to_i32_r_minMag( *aPtr, exact );
}
#else
int_fast32_t extF80M_to_i32_r_minMag( const extFloat80_t *aPtr, bool exact )
{
const struct extFloat80M *aSPtr;
uint_fast16_t uiA64;
int32_t exp;
uint64_t sig;
int32_t shiftDist;
bool sign, raiseInexact;
int32_t z;
uint64_t shiftedSig;
uint32_t absZ;
union { uint32_t ui; int32_t i; } u;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
uiA64 = aSPtr->signExp;
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! sig && (exp != 0x7FFF) ) return 0;
shiftDist = 0x403E - exp;
if ( 64 <= shiftDist ) {
raiseInexact = exact;
z = 0;
} else {
sign = signExtF80UI64( uiA64 );
raiseInexact = false;
if ( shiftDist < 0 ) {
if ( sig>>32 || (shiftDist <= -31) ) goto invalid;
shiftedSig = (uint64_t) (uint32_t) sig<<-shiftDist;
if ( shiftedSig>>32 ) goto invalid;
absZ = shiftedSig;
} else {
shiftedSig = sig;
if ( shiftDist ) shiftedSig >>= shiftDist;
if ( shiftedSig>>32 ) goto invalid;
absZ = shiftedSig;
if ( exact && shiftDist ) {
raiseInexact = ((uint64_t) absZ<<shiftDist != sig);
}
}
if ( sign ) {
if ( 0x80000000 < absZ ) goto invalid;
u.ui = -absZ;
z = u.i;
} else {
if ( 0x80000000 <= absZ ) goto invalid;
z = absZ;
}
}
if ( raiseInexact ) softfloat_exceptionFlags |= softfloat_flag_inexact;
return z;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_raiseFlags( softfloat_flag_invalid );
return
(exp == 0x7FFF) && (sig & UINT64_C( 0x7FFFFFFFFFFFFFFF )) ? i32_fromNaN
: sign ? i32_fromNegOverflow : i32_fromPosOverflow;
}
#endif
deps/SoftFloat-3d/source/extF80M_to_i64.c
Vendored
+97
View File
@@ -0,0 +1,97 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
int_fast64_t
extF80M_to_i64(
const extFloat80_t *aPtr, uint_fast8_t roundingMode, bool exact )
{
return extF80_to_i64( *aPtr, roundingMode, exact );
}
#else
int_fast64_t
extF80M_to_i64(
const extFloat80_t *aPtr, uint_fast8_t roundingMode, bool exact )
{
const struct extFloat80M *aSPtr;
uint_fast16_t uiA64;
bool sign;
int32_t exp;
uint64_t sig;
int32_t shiftDist;
uint32_t extSig[3];
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
uiA64 = aSPtr->signExp;
sign = signExtF80UI64( uiA64 );
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
shiftDist = 0x403E - exp;
if ( shiftDist < 0 ) {
softfloat_raiseFlags( softfloat_flag_invalid );
return
(exp == 0x7FFF) && (sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
? i64_fromNaN
: sign ? i64_fromNegOverflow : i64_fromPosOverflow;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
extSig[indexWord( 3, 2 )] = sig>>32;
extSig[indexWord( 3, 1 )] = sig;
extSig[indexWord( 3, 0 )] = 0;
if ( shiftDist ) softfloat_shiftRightJam96M( extSig, shiftDist, extSig );
return softfloat_roundMToI64( sign, extSig, roundingMode, exact );
}
#endif
deps/SoftFloat-3d/source/extF80M_to_i64_r_minMag.c
Vendored
+115
View File
@@ -0,0 +1,115 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
int_fast64_t extF80M_to_i64_r_minMag( const extFloat80_t *aPtr, bool exact )
{
return extF80_to_i64_r_minMag( *aPtr, exact );
}
#else
int_fast64_t extF80M_to_i64_r_minMag( const extFloat80_t *aPtr, bool exact )
{
const struct extFloat80M *aSPtr;
uint_fast16_t uiA64;
int32_t exp;
uint64_t sig;
int32_t shiftDist;
bool sign, raiseInexact;
int64_t z;
uint64_t absZ;
union { uint64_t ui; int64_t i; } u;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
uiA64 = aSPtr->signExp;
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! sig && (exp != 0x7FFF) ) return 0;
shiftDist = 0x403E - exp;
if ( 64 <= shiftDist ) {
raiseInexact = exact;
z = 0;
} else {
sign = signExtF80UI64( uiA64 );
raiseInexact = false;
if ( shiftDist < 0 ) {
if ( shiftDist <= -63 ) goto invalid;
shiftDist = -shiftDist;
absZ = sig<<shiftDist;
if ( absZ>>shiftDist != sig ) goto invalid;
} else {
absZ = sig;
if ( shiftDist ) absZ >>= shiftDist;
if ( exact && shiftDist ) raiseInexact = (absZ<<shiftDist != sig);
}
if ( sign ) {
if ( UINT64_C( 0x8000000000000000 ) < absZ ) goto invalid;
u.ui = -absZ;
z = u.i;
} else {
if ( UINT64_C( 0x8000000000000000 ) <= absZ ) goto invalid;
z = absZ;
}
}
if ( raiseInexact ) softfloat_exceptionFlags |= softfloat_flag_inexact;
return z;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_raiseFlags( softfloat_flag_invalid );
return
(exp == 0x7FFF) && (sig & UINT64_C( 0x7FFFFFFFFFFFFFFF )) ? i64_fromNaN
: sign ? i64_fromNegOverflow : i64_fromPosOverflow;
}
#endif
deps/SoftFloat-3d/source/extF80M_to_ui32.c
Vendored
+101
View File
@@ -0,0 +1,101 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
uint_fast32_t
extF80M_to_ui32(
const extFloat80_t *aPtr, uint_fast8_t roundingMode, bool exact )
{
return extF80_to_ui32( *aPtr, roundingMode, exact );
}
#else
uint_fast32_t
extF80M_to_ui32(
const extFloat80_t *aPtr, uint_fast8_t roundingMode, bool exact )
{
const struct extFloat80M *aSPtr;
uint_fast16_t uiA64;
bool sign;
int32_t exp;
uint64_t sig;
int32_t shiftDist;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
uiA64 = aSPtr->signExp;
sign = signExtF80UI64( uiA64 );
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
shiftDist = 0x4032 - exp;
if ( shiftDist <= 0 ) {
if ( sig>>32 ) goto invalid;
if ( -32 < shiftDist ) {
sig <<= -shiftDist;
} else {
if ( (uint32_t) sig ) goto invalid;
}
} else {
sig = softfloat_shiftRightJam64( sig, shiftDist );
}
return softfloat_roundToUI32( sign, sig, roundingMode, exact );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_raiseFlags( softfloat_flag_invalid );
return
(exp == 0x7FFF) && (sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
? ui32_fromNaN
: sign ? ui32_fromNegOverflow : ui32_fromPosOverflow;
}
#endif
deps/SoftFloat-3d/source/extF80M_to_ui32_r_minMag.c
Vendored
+111
View File
@@ -0,0 +1,111 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
uint_fast32_t extF80M_to_ui32_r_minMag( const extFloat80_t *aPtr, bool exact )
{
return extF80_to_ui32_r_minMag( *aPtr, exact );
}
#else
uint_fast32_t extF80M_to_ui32_r_minMag( const extFloat80_t *aPtr, bool exact )
{
const struct extFloat80M *aSPtr;
uint_fast16_t uiA64;
int32_t exp;
uint64_t sig;
int32_t shiftDist;
bool sign;
uint64_t shiftedSig;
uint32_t z;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
uiA64 = aSPtr->signExp;
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! sig && (exp != 0x7FFF) ) return 0;
shiftDist = 0x403E - exp;
if ( 64 <= shiftDist ) {
if ( exact ) softfloat_exceptionFlags |= softfloat_flag_inexact;
return 0;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
sign = signExtF80UI64( uiA64 );
if ( shiftDist < 0 ) {
if ( sign || sig>>32 || (shiftDist <= -31) ) goto invalid;
shiftedSig = (uint64_t) (uint32_t) sig<<-shiftDist;
if ( shiftedSig>>32 ) goto invalid;
z = shiftedSig;
} else {
shiftedSig = sig;
if ( shiftDist ) shiftedSig >>= shiftDist;
if ( shiftedSig>>32 ) goto invalid;
z = shiftedSig;
if ( sign && z ) goto invalid;
if ( exact && shiftDist && ((uint64_t) z<<shiftDist != sig) ) {
softfloat_exceptionFlags |= softfloat_flag_inexact;
}
}
return z;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_raiseFlags( softfloat_flag_invalid );
return
(exp == 0x7FFF) && (sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
? ui32_fromNaN
: sign ? ui32_fromNegOverflow : ui32_fromPosOverflow;
}
#endif
deps/SoftFloat-3d/source/extF80M_to_ui64.c
Vendored
+97
View File
@@ -0,0 +1,97 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
uint_fast64_t
extF80M_to_ui64(
const extFloat80_t *aPtr, uint_fast8_t roundingMode, bool exact )
{
return extF80_to_ui64( *aPtr, roundingMode, exact );
}
#else
uint_fast64_t
extF80M_to_ui64(
const extFloat80_t *aPtr, uint_fast8_t roundingMode, bool exact )
{
const struct extFloat80M *aSPtr;
uint_fast16_t uiA64;
bool sign;
int32_t exp;
uint64_t sig;
int32_t shiftDist;
uint32_t extSig[3];
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
uiA64 = aSPtr->signExp;
sign = signExtF80UI64( uiA64 );
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
shiftDist = 0x403E - exp;
if ( shiftDist < 0 ) {
softfloat_raiseFlags( softfloat_flag_invalid );
return
(exp == 0x7FFF) && (sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
? ui64_fromNaN
: sign ? ui64_fromNegOverflow : ui64_fromPosOverflow;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
extSig[indexWord( 3, 2 )] = sig>>32;
extSig[indexWord( 3, 1 )] = sig;
extSig[indexWord( 3, 0 )] = 0;
if ( shiftDist ) softfloat_shiftRightJam96M( extSig, shiftDist, extSig );
return softfloat_roundMToUI64( sign, extSig, roundingMode, exact );
}
#endif
deps/SoftFloat-3d/source/extF80M_to_ui64_r_minMag.c
Vendored
+108
View File
@@ -0,0 +1,108 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
#ifdef SOFTFLOAT_FAST_INT64
uint_fast64_t extF80M_to_ui64_r_minMag( const extFloat80_t *aPtr, bool exact )
{
return extF80_to_ui64_r_minMag( *aPtr, exact );
}
#else
uint_fast64_t extF80M_to_ui64_r_minMag( const extFloat80_t *aPtr, bool exact )
{
const struct extFloat80M *aSPtr;
uint_fast16_t uiA64;
int32_t exp;
uint64_t sig;
int32_t shiftDist;
bool sign;
uint64_t z;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
aSPtr = (const struct extFloat80M *) aPtr;
uiA64 = aSPtr->signExp;
exp = expExtF80UI64( uiA64 );
sig = aSPtr->signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! sig && (exp != 0x7FFF) ) return 0;
shiftDist = 0x403E - exp;
if ( 64 <= shiftDist ) {
if ( exact ) softfloat_exceptionFlags |= softfloat_flag_inexact;
return 0;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
sign = signExtF80UI64( uiA64 );
if ( shiftDist < 0 ) {
if ( sign || (shiftDist <= -63) ) goto invalid;
shiftDist = -shiftDist;
z = sig<<shiftDist;
if ( z>>shiftDist != sig ) goto invalid;
} else {
z = sig;
if ( shiftDist ) z >>= shiftDist;
if ( sign && z ) goto invalid;
if ( exact && shiftDist && (z<<shiftDist != sig) ) {
softfloat_exceptionFlags |= softfloat_flag_inexact;
}
}
return z;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_raiseFlags( softfloat_flag_invalid );
return
(exp == 0x7FFF) && (sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
? ui64_fromNaN
: sign ? ui64_fromNegOverflow : ui64_fromPosOverflow;
}
#endif
deps/SoftFloat-3d/source/extF80_add.c
Vendored
+80
View File
@@ -0,0 +1,80 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "softfloat.h"
extFloat80_t extF80_add( extFloat80_t a, extFloat80_t b )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
bool signA;
union { struct extFloat80M s; extFloat80_t f; } uB;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
bool signB;
#if ! defined INLINE_LEVEL || (INLINE_LEVEL < 2)
extFloat80_t
(*magsFuncPtr)(
uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );
#endif
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
signA = signExtF80UI64( uiA64 );
uB.f = b;
uiB64 = uB.s.signExp;
uiB0 = uB.s.signif;
signB = signExtF80UI64( uiB64 );
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
if ( signA == signB ) {
return softfloat_addMagsExtF80( uiA64, uiA0, uiB64, uiB0, signA );
} else {
return softfloat_subMagsExtF80( uiA64, uiA0, uiB64, uiB0, signA );
}
#else
magsFuncPtr =
(signA == signB) ? softfloat_addMagsExtF80 : softfloat_subMagsExtF80;
return (*magsFuncPtr)( uiA64, uiA0, uiB64, uiB0, signA );
#endif
}
deps/SoftFloat-3d/source/extF80_div.c
Vendored
+203
View File
@@ -0,0 +1,203 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
extFloat80_t extF80_div( extFloat80_t a, extFloat80_t b )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
bool signA;
int_fast32_t expA;
uint_fast64_t sigA;
union { struct extFloat80M s; extFloat80_t f; } uB;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
bool signB;
int_fast32_t expB;
uint_fast64_t sigB;
bool signZ;
struct exp32_sig64 normExpSig;
int_fast32_t expZ;
struct uint128 rem;
uint_fast32_t recip32;
uint_fast64_t sigZ;
int ix;
uint_fast64_t q64;
uint_fast32_t q;
struct uint128 term;
uint_fast64_t sigZExtra;
struct uint128 uiZ;
uint_fast16_t uiZ64;
uint_fast64_t uiZ0;
union { struct extFloat80M s; extFloat80_t f; } uZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
signA = signExtF80UI64( uiA64 );
expA = expExtF80UI64( uiA64 );
sigA = uiA0;
uB.f = b;
uiB64 = uB.s.signExp;
uiB0 = uB.s.signif;
signB = signExtF80UI64( uiB64 );
expB = expExtF80UI64( uiB64 );
sigB = uiB0;
signZ = signA ^ signB;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( expA == 0x7FFF ) {
if ( sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) goto propagateNaN;
if ( expB == 0x7FFF ) {
if ( sigB & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) goto propagateNaN;
goto invalid;
}
goto infinity;
}
if ( expB == 0x7FFF ) {
if ( sigB & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) goto propagateNaN;
goto zero;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! expB ) expB = 1;
if ( ! (sigB & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sigB ) {
if ( ! sigA ) goto invalid;
softfloat_raiseFlags( softfloat_flag_infinite );
goto infinity;
}
normExpSig = softfloat_normSubnormalExtF80Sig( sigB );
expB += normExpSig.exp;
sigB = normExpSig.sig;
}
if ( ! expA ) expA = 1;
if ( ! (sigA & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sigA ) goto zero;
normExpSig = softfloat_normSubnormalExtF80Sig( sigA );
expA += normExpSig.exp;
sigA = normExpSig.sig;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
expZ = expA - expB + 0x3FFF;
if ( sigA < sigB ) {
--expZ;
rem = softfloat_shortShiftLeft128( 0, sigA, 32 );
} else {
rem = softfloat_shortShiftLeft128( 0, sigA, 31 );
}
recip32 = softfloat_approxRecip32_1( sigB>>32 );
sigZ = 0;
ix = 2;
for (;;) {
q64 = (uint_fast64_t) (uint32_t) (rem.v64>>2) * recip32;
q = (q64 + 0x80000000)>>32;
--ix;
if ( ix < 0 ) break;
rem = softfloat_shortShiftLeft128( rem.v64, rem.v0, 29 );
term = softfloat_mul64ByShifted32To128( sigB, q );
rem = softfloat_sub128( rem.v64, rem.v0, term.v64, term.v0 );
if ( rem.v64 & UINT64_C( 0x8000000000000000 ) ) {
--q;
rem = softfloat_add128( rem.v64, rem.v0, sigB>>32, sigB<<32 );
}
sigZ = (sigZ<<29) + q;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ((q + 1) & 0x3FFFFF) < 2 ) {
rem = softfloat_shortShiftLeft128( rem.v64, rem.v0, 29 );
term = softfloat_mul64ByShifted32To128( sigB, q );
rem = softfloat_sub128( rem.v64, rem.v0, term.v64, term.v0 );
term = softfloat_shortShiftLeft128( 0, sigB, 32 );
if ( rem.v64 & UINT64_C( 0x8000000000000000 ) ) {
--q;
rem = softfloat_add128( rem.v64, rem.v0, term.v64, term.v0 );
} else if ( softfloat_le128( term.v64, term.v0, rem.v64, rem.v0 ) ) {
++q;
rem = softfloat_sub128( rem.v64, rem.v0, term.v64, term.v0 );
}
if ( rem.v64 | rem.v0 ) q |= 1;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
sigZ = (sigZ<<6) + (q>>23);
sigZExtra = (uint64_t) ((uint_fast64_t) q<<41);
return
softfloat_roundPackToExtF80(
signZ, expZ, sigZ, sigZExtra, extF80_roundingPrecision );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
propagateNaN:
uiZ = softfloat_propagateNaNExtF80UI( uiA64, uiA0, uiB64, uiB0 );
uiZ64 = uiZ.v64;
uiZ0 = uiZ.v0;
goto uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_raiseFlags( softfloat_flag_invalid );
uiZ64 = defaultNaNExtF80UI64;
uiZ0 = defaultNaNExtF80UI0;
goto uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
infinity:
uiZ64 = packToExtF80UI64( signZ, 0x7FFF );
uiZ0 = UINT64_C( 0x8000000000000000 );
goto uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zero:
uiZ64 = packToExtF80UI64( signZ, 0 );
uiZ0 = 0;
uiZ:
uZ.s.signExp = uiZ64;
uZ.s.signif = uiZ0;
return uZ.f;
}
deps/SoftFloat-3d/source/extF80_eq.c
Vendored
+73
View File
@@ -0,0 +1,73 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
bool extF80_eq( extFloat80_t a, extFloat80_t b )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
union { struct extFloat80M s; extFloat80_t f; } uB;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
uB.f = b;
uiB64 = uB.s.signExp;
uiB0 = uB.s.signif;
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
if (
softfloat_isSigNaNExtF80UI( uiA64, uiA0 )
|| softfloat_isSigNaNExtF80UI( uiB64, uiB0 )
) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
return false;
}
return
(uiA0 == uiB0)
&& ((uiA64 == uiB64) || (! uiA0 && ! ((uiA64 | uiB64) & 0x7FFF)));
}
deps/SoftFloat-3d/source/extF80_eq_signaling.c
Vendored
+67
View File
@@ -0,0 +1,67 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "softfloat.h"
bool extF80_eq_signaling( extFloat80_t a, extFloat80_t b )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
union { struct extFloat80M s; extFloat80_t f; } uB;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
uB.f = b;
uiB64 = uB.s.signExp;
uiB0 = uB.s.signif;
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
return false;
}
return
(uiA0 == uiB0)
&& ((uiA64 == uiB64) || (! uiA0 && ! ((uiA64 | uiB64) & 0x7FFF)));
}
deps/SoftFloat-3d/source/extF80_isSignalingNaN.c
Vendored
+51
View File
@@ -0,0 +1,51 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
bool extF80_isSignalingNaN( extFloat80_t a )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uA.f = a;
return softfloat_isSigNaNExtF80UI( uA.s.signExp, uA.s.signif );
}
deps/SoftFloat-3d/source/extF80_le.c
Vendored
+73
View File
@@ -0,0 +1,73 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
bool extF80_le( extFloat80_t a, extFloat80_t b )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
union { struct extFloat80M s; extFloat80_t f; } uB;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
bool signA, signB;
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
uB.f = b;
uiB64 = uB.s.signExp;
uiB0 = uB.s.signif;
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
return false;
}
signA = signExtF80UI64( uiA64 );
signB = signExtF80UI64( uiB64 );
return
(signA != signB)
? signA || ! (((uiA64 | uiB64) & 0x7FFF) | uiA0 | uiB0)
: ((uiA64 == uiB64) && (uiA0 == uiB0))
|| (signA ^ softfloat_lt128( uiA64, uiA0, uiB64, uiB0 ));
}
deps/SoftFloat-3d/source/extF80_le_quiet.c
Vendored
+78
View File
@@ -0,0 +1,78 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
bool extF80_le_quiet( extFloat80_t a, extFloat80_t b )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
union { struct extFloat80M s; extFloat80_t f; } uB;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
bool signA, signB;
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
uB.f = b;
uiB64 = uB.s.signExp;
uiB0 = uB.s.signif;
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
if (
softfloat_isSigNaNExtF80UI( uiA64, uiA0 )
|| softfloat_isSigNaNExtF80UI( uiB64, uiB0 )
) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
return false;
}
signA = signExtF80UI64( uiA64 );
signB = signExtF80UI64( uiB64 );
return
(signA != signB)
? signA || ! (((uiA64 | uiB64) & 0x7FFF) | uiA0 | uiB0)
: ((uiA64 == uiB64) && (uiA0 == uiB0))
|| (signA ^ softfloat_lt128( uiA64, uiA0, uiB64, uiB0 ));
}
deps/SoftFloat-3d/source/extF80_lt.c
Vendored
+73
View File
@@ -0,0 +1,73 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
bool extF80_lt( extFloat80_t a, extFloat80_t b )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
union { struct extFloat80M s; extFloat80_t f; } uB;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
bool signA, signB;
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
uB.f = b;
uiB64 = uB.s.signExp;
uiB0 = uB.s.signif;
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
softfloat_raiseFlags( softfloat_flag_invalid );
return false;
}
signA = signExtF80UI64( uiA64 );
signB = signExtF80UI64( uiB64 );
return
(signA != signB)
? signA && (((uiA64 | uiB64) & 0x7FFF) | uiA0 | uiB0)
: ((uiA64 != uiB64) || (uiA0 != uiB0))
&& (signA ^ softfloat_lt128( uiA64, uiA0, uiB64, uiB0 ));
}
deps/SoftFloat-3d/source/extF80_lt_quiet.c
Vendored
+78
View File
@@ -0,0 +1,78 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
bool extF80_lt_quiet( extFloat80_t a, extFloat80_t b )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
union { struct extFloat80M s; extFloat80_t f; } uB;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
bool signA, signB;
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
uB.f = b;
uiB64 = uB.s.signExp;
uiB0 = uB.s.signif;
if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
if (
softfloat_isSigNaNExtF80UI( uiA64, uiA0 )
|| softfloat_isSigNaNExtF80UI( uiB64, uiB0 )
) {
softfloat_raiseFlags( softfloat_flag_invalid );
}
return false;
}
signA = signExtF80UI64( uiA64 );
signB = signExtF80UI64( uiB64 );
return
(signA != signB)
? signA && (((uiA64 | uiB64) & 0x7FFF) | uiA0 | uiB0)
: ((uiA64 != uiB64) || (uiA0 != uiB0))
&& (signA ^ softfloat_lt128( uiA64, uiA0, uiB64, uiB0 ));
}
deps/SoftFloat-3d/source/extF80_mul.c
Vendored
+158
View File
@@ -0,0 +1,158 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
extFloat80_t extF80_mul( extFloat80_t a, extFloat80_t b )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
bool signA;
int_fast32_t expA;
uint_fast64_t sigA;
union { struct extFloat80M s; extFloat80_t f; } uB;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
bool signB;
int_fast32_t expB;
uint_fast64_t sigB;
bool signZ;
uint_fast64_t magBits;
struct exp32_sig64 normExpSig;
int_fast32_t expZ;
struct uint128 sig128Z, uiZ;
uint_fast16_t uiZ64;
uint_fast64_t uiZ0;
union { struct extFloat80M s; extFloat80_t f; } uZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
signA = signExtF80UI64( uiA64 );
expA = expExtF80UI64( uiA64 );
sigA = uiA0;
uB.f = b;
uiB64 = uB.s.signExp;
uiB0 = uB.s.signif;
signB = signExtF80UI64( uiB64 );
expB = expExtF80UI64( uiB64 );
sigB = uiB0;
signZ = signA ^ signB;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( expA == 0x7FFF ) {
if (
(sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
|| ((expB == 0x7FFF) && (sigB & UINT64_C( 0x7FFFFFFFFFFFFFFF )))
) {
goto propagateNaN;
}
magBits = expB | sigB;
goto infArg;
}
if ( expB == 0x7FFF ) {
if ( sigB & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) goto propagateNaN;
magBits = expA | sigA;
goto infArg;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! expA ) expA = 1;
if ( ! (sigA & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sigA ) goto zero;
normExpSig = softfloat_normSubnormalExtF80Sig( sigA );
expA += normExpSig.exp;
sigA = normExpSig.sig;
}
if ( ! expB ) expB = 1;
if ( ! (sigB & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sigB ) goto zero;
normExpSig = softfloat_normSubnormalExtF80Sig( sigB );
expB += normExpSig.exp;
sigB = normExpSig.sig;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
expZ = expA + expB - 0x3FFE;
sig128Z = softfloat_mul64To128( sigA, sigB );
if ( sig128Z.v64 < UINT64_C( 0x8000000000000000 ) ) {
--expZ;
sig128Z =
softfloat_add128(
sig128Z.v64, sig128Z.v0, sig128Z.v64, sig128Z.v0 );
}
return
softfloat_roundPackToExtF80(
signZ, expZ, sig128Z.v64, sig128Z.v0, extF80_roundingPrecision );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
propagateNaN:
uiZ = softfloat_propagateNaNExtF80UI( uiA64, uiA0, uiB64, uiB0 );
uiZ64 = uiZ.v64;
uiZ0 = uiZ.v0;
goto uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
infArg:
if ( ! magBits ) {
softfloat_raiseFlags( softfloat_flag_invalid );
uiZ64 = defaultNaNExtF80UI64;
uiZ0 = defaultNaNExtF80UI0;
} else {
uiZ64 = packToExtF80UI64( signZ, 0x7FFF );
uiZ0 = UINT64_C( 0x8000000000000000 );
}
goto uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zero:
uiZ64 = packToExtF80UI64( signZ, 0 );
uiZ0 = 0;
uiZ:
uZ.s.signExp = uiZ64;
uZ.s.signif = uiZ0;
return uZ.f;
}
deps/SoftFloat-3d/source/extF80_rem.c
Vendored
+225
View File
@@ -0,0 +1,225 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
extFloat80_t extF80_rem( extFloat80_t a, extFloat80_t b )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
bool signA;
int_fast32_t expA;
uint_fast64_t sigA;
union { struct extFloat80M s; extFloat80_t f; } uB;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
int_fast32_t expB;
uint_fast64_t sigB;
struct exp32_sig64 normExpSig;
int_fast32_t expDiff;
struct uint128 rem, shiftedSigB;
uint_fast32_t q, recip32;
uint_fast64_t q64;
struct uint128 term, altRem, meanRem;
bool signRem;
struct uint128 uiZ;
uint_fast16_t uiZ64;
uint_fast64_t uiZ0;
union { struct extFloat80M s; extFloat80_t f; } uZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
signA = signExtF80UI64( uiA64 );
expA = expExtF80UI64( uiA64 );
sigA = uiA0;
uB.f = b;
uiB64 = uB.s.signExp;
uiB0 = uB.s.signif;
expB = expExtF80UI64( uiB64 );
sigB = uiB0;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( expA == 0x7FFF ) {
if (
(sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF ))
|| ((expB == 0x7FFF) && (sigB & UINT64_C( 0x7FFFFFFFFFFFFFFF )))
) {
goto propagateNaN;
}
goto invalid;
}
if ( expB == 0x7FFF ) {
if ( sigB & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) goto propagateNaN;
/*--------------------------------------------------------------------
| Argument b is an infinity. Doubling `expB' is an easy way to ensure
| that `expDiff' later is less than -1, which will result in returning
| a canonicalized version of argument a.
*--------------------------------------------------------------------*/
expB += expB;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! expB ) expB = 1;
if ( ! (sigB & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sigB ) goto invalid;
normExpSig = softfloat_normSubnormalExtF80Sig( sigB );
expB += normExpSig.exp;
sigB = normExpSig.sig;
}
if ( ! expA ) expA = 1;
if ( ! (sigA & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sigA ) {
expA = 0;
goto copyA;
}
normExpSig = softfloat_normSubnormalExtF80Sig( sigA );
expA += normExpSig.exp;
sigA = normExpSig.sig;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
expDiff = expA - expB;
if ( expDiff < -1 ) goto copyA;
rem = softfloat_shortShiftLeft128( 0, sigA, 32 );
shiftedSigB = softfloat_shortShiftLeft128( 0, sigB, 32 );
if ( expDiff < 1 ) {
if ( expDiff ) {
--expB;
shiftedSigB = softfloat_shortShiftLeft128( 0, sigB, 33 );
q = 0;
} else {
q = (sigB <= sigA);
if ( q ) {
rem =
softfloat_sub128(
rem.v64, rem.v0, shiftedSigB.v64, shiftedSigB.v0 );
}
}
} else {
recip32 = softfloat_approxRecip32_1( sigB>>32 );
expDiff -= 30;
for (;;) {
q64 = (uint_fast64_t) (uint32_t) (rem.v64>>2) * recip32;
if ( expDiff < 0 ) break;
q = (q64 + 0x80000000)>>32;
rem = softfloat_shortShiftLeft128( rem.v64, rem.v0, 29 );
term = softfloat_mul64ByShifted32To128( sigB, q );
rem = softfloat_sub128( rem.v64, rem.v0, term.v64, term.v0 );
if ( rem.v64 & UINT64_C( 0x8000000000000000 ) ) {
rem =
softfloat_add128(
rem.v64, rem.v0, shiftedSigB.v64, shiftedSigB.v0 );
}
expDiff -= 29;
}
/*--------------------------------------------------------------------
| (`expDiff' cannot be less than -29 here.)
*--------------------------------------------------------------------*/
q = (uint32_t) (q64>>32)>>(~expDiff & 31);
rem = softfloat_shortShiftLeft128( rem.v64, rem.v0, expDiff + 30 );
term = softfloat_mul64ByShifted32To128( sigB, q );
rem = softfloat_sub128( rem.v64, rem.v0, term.v64, term.v0 );
if ( rem.v64 & UINT64_C( 0x8000000000000000 ) ) {
altRem =
softfloat_add128(
rem.v64, rem.v0, shiftedSigB.v64, shiftedSigB.v0 );
goto selectRem;
}
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
do {
altRem = rem;
++q;
rem =
softfloat_sub128(
rem.v64, rem.v0, shiftedSigB.v64, shiftedSigB.v0 );
} while ( ! (rem.v64 & UINT64_C( 0x8000000000000000 )) );
selectRem:
meanRem = softfloat_add128( rem.v64, rem.v0, altRem.v64, altRem.v0 );
if (
(meanRem.v64 & UINT64_C( 0x8000000000000000 ))
|| (! (meanRem.v64 | meanRem.v0) && (q & 1))
) {
rem = altRem;
}
signRem = signA;
if ( rem.v64 & UINT64_C( 0x8000000000000000 ) ) {
signRem = ! signRem;
rem = softfloat_sub128( 0, 0, rem.v64, rem.v0 );
}
return
softfloat_normRoundPackToExtF80(
signRem, rem.v64 | rem.v0 ? expB + 32 : 0, rem.v64, rem.v0, 80 );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
propagateNaN:
uiZ = softfloat_propagateNaNExtF80UI( uiA64, uiA0, uiB64, uiB0 );
uiZ64 = uiZ.v64;
uiZ0 = uiZ.v0;
goto uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_raiseFlags( softfloat_flag_invalid );
uiZ64 = defaultNaNExtF80UI64;
uiZ0 = defaultNaNExtF80UI0;
goto uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
copyA:
if ( expA < 1 ) {
sigA >>= 1 - expA;
expA = 0;
}
uiZ64 = packToExtF80UI64( signA, expA );
uiZ0 = sigA;
uiZ:
uZ.s.signExp = uiZ64;
uZ.s.signif = uiZ0;
return uZ.f;
}
deps/SoftFloat-3d/source/extF80_roundToInt.c
Vendored
+147
View File
@@ -0,0 +1,147 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2017 The Regents of the University of
California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
extFloat80_t
extF80_roundToInt( extFloat80_t a, uint_fast8_t roundingMode, bool exact )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64, signUI64;
int_fast32_t exp;
uint_fast64_t sigA;
uint_fast16_t uiZ64;
uint_fast64_t sigZ;
struct exp32_sig64 normExpSig;
struct uint128 uiZ;
uint_fast64_t lastBitMask, roundBitsMask;
union { struct extFloat80M s; extFloat80_t f; } uZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uA.f = a;
uiA64 = uA.s.signExp;
signUI64 = uiA64 & packToExtF80UI64( 1, 0 );
exp = expExtF80UI64( uiA64 );
sigA = uA.s.signif;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! (sigA & UINT64_C( 0x8000000000000000 )) && (exp != 0x7FFF) ) {
if ( ! sigA ) {
uiZ64 = signUI64;
sigZ = 0;
goto uiZ;
}
normExpSig = softfloat_normSubnormalExtF80Sig( sigA );
exp += normExpSig.exp;
sigA = normExpSig.sig;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( 0x403E <= exp ) {
if ( exp == 0x7FFF ) {
if ( sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
uiZ = softfloat_propagateNaNExtF80UI( uiA64, sigA, 0, 0 );
uiZ64 = uiZ.v64;
sigZ = uiZ.v0;
goto uiZ;
}
sigZ = UINT64_C( 0x8000000000000000 );
} else {
sigZ = sigA;
}
uiZ64 = signUI64 | exp;
goto uiZ;
}
if ( exp <= 0x3FFE ) {
if ( exact ) softfloat_exceptionFlags |= softfloat_flag_inexact;
switch ( roundingMode ) {
case softfloat_round_near_even:
if ( ! (sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF )) ) break;
case softfloat_round_near_maxMag:
if ( exp == 0x3FFE ) goto mag1;
break;
case softfloat_round_min:
if ( signUI64 ) goto mag1;
break;
case softfloat_round_max:
if ( ! signUI64 ) goto mag1;
break;
}
uiZ64 = signUI64;
sigZ = 0;
goto uiZ;
mag1:
uiZ64 = signUI64 | 0x3FFF;
sigZ = UINT64_C( 0x8000000000000000 );
goto uiZ;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uiZ64 = signUI64 | exp;
lastBitMask = (uint_fast64_t) 1<<(0x403E - exp);
roundBitsMask = lastBitMask - 1;
sigZ = sigA;
if ( roundingMode == softfloat_round_near_maxMag ) {
sigZ += lastBitMask>>1;
} else if ( roundingMode == softfloat_round_near_even ) {
sigZ += lastBitMask>>1;
if ( ! (sigZ & roundBitsMask) ) sigZ &= ~lastBitMask;
} else if (
roundingMode == (signUI64 ? softfloat_round_min : softfloat_round_max)
) {
sigZ += roundBitsMask;
}
sigZ &= ~roundBitsMask;
if ( ! sigZ ) {
++uiZ64;
sigZ = UINT64_C( 0x8000000000000000 );
}
if ( exact && (sigZ != sigA) ) {
softfloat_exceptionFlags |= softfloat_flag_inexact;
}
uiZ:
uZ.s.signExp = uiZ64;
uZ.s.signif = sigZ;
return uZ.f;
}
deps/SoftFloat-3d/source/extF80_sqrt.c
Vendored
+176
View File
@@ -0,0 +1,176 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014, 2015, 2016, 2017 The Regents of the
University of California. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
extFloat80_t extF80_sqrt( extFloat80_t a )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
bool signA;
int_fast32_t expA;
uint_fast64_t sigA;
struct uint128 uiZ;
uint_fast16_t uiZ64;
uint_fast64_t uiZ0;
struct exp32_sig64 normExpSig;
int_fast32_t expZ;
uint_fast32_t sig32A, recipSqrt32, sig32Z;
struct uint128 rem;
uint_fast64_t q, x64, sigZ;
struct uint128 y, term;
uint_fast64_t sigZExtra;
union { struct extFloat80M s; extFloat80_t f; } uZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
signA = signExtF80UI64( uiA64 );
expA = expExtF80UI64( uiA64 );
sigA = uiA0;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( expA == 0x7FFF ) {
if ( sigA & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
uiZ = softfloat_propagateNaNExtF80UI( uiA64, uiA0, 0, 0 );
uiZ64 = uiZ.v64;
uiZ0 = uiZ.v0;
goto uiZ;
}
if ( ! signA ) return a;
goto invalid;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( signA ) {
if ( ! sigA ) goto zero;
goto invalid;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( ! expA ) expA = 1;
if ( ! (sigA & UINT64_C( 0x8000000000000000 )) ) {
if ( ! sigA ) goto zero;
normExpSig = softfloat_normSubnormalExtF80Sig( sigA );
expA += normExpSig.exp;
sigA = normExpSig.sig;
}
/*------------------------------------------------------------------------
| (`sig32Z' is guaranteed to be a lower bound on the square root of
| `sig32A', which makes `sig32Z' also a lower bound on the square root of
| `sigA'.)
*------------------------------------------------------------------------*/
expZ = ((expA - 0x3FFF)>>1) + 0x3FFF;
expA &= 1;
sig32A = sigA>>32;
recipSqrt32 = softfloat_approxRecipSqrt32_1( expA, sig32A );
sig32Z = ((uint_fast64_t) sig32A * recipSqrt32)>>32;
if ( expA ) {
sig32Z >>= 1;
rem = softfloat_shortShiftLeft128( 0, sigA, 61 );
} else {
rem = softfloat_shortShiftLeft128( 0, sigA, 62 );
}
rem.v64 -= (uint_fast64_t) sig32Z * sig32Z;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
q = ((uint32_t) (rem.v64>>2) * (uint_fast64_t) recipSqrt32)>>32;
x64 = (uint_fast64_t) sig32Z<<32;
sigZ = x64 + (q<<3);
y = softfloat_shortShiftLeft128( rem.v64, rem.v0, 29 );
/*------------------------------------------------------------------------
| (Repeating this loop is a rare occurrence.)
*------------------------------------------------------------------------*/
for (;;) {
term = softfloat_mul64ByShifted32To128( x64 + sigZ, q );
rem = softfloat_sub128( y.v64, y.v0, term.v64, term.v0 );
if ( ! (rem.v64 & UINT64_C( 0x8000000000000000 )) ) break;
--q;
sigZ -= 1<<3;
}
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
q = (((rem.v64>>2) * recipSqrt32)>>32) + 2;
x64 = sigZ;
sigZ = (sigZ<<1) + (q>>25);
sigZExtra = (uint64_t) (q<<39);
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
if ( (q & 0xFFFFFF) <= 2 ) {
q &= ~(uint_fast64_t) 0xFFFF;
sigZExtra = (uint64_t) (q<<39);
term = softfloat_mul64ByShifted32To128( x64 + (q>>27), q );
x64 = (uint32_t) (q<<5) * (uint_fast64_t) (uint32_t) q;
term = softfloat_add128( term.v64, term.v0, 0, x64 );
rem = softfloat_shortShiftLeft128( rem.v64, rem.v0, 28 );
rem = softfloat_sub128( rem.v64, rem.v0, term.v64, term.v0 );
if ( rem.v64 & UINT64_C( 0x8000000000000000 ) ) {
if ( ! sigZExtra ) --sigZ;
--sigZExtra;
} else {
if ( rem.v64 | rem.v0 ) sigZExtra |= 1;
}
}
return
softfloat_roundPackToExtF80(
0, expZ, sigZ, sigZExtra, extF80_roundingPrecision );
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
invalid:
softfloat_raiseFlags( softfloat_flag_invalid );
uiZ64 = defaultNaNExtF80UI64;
uiZ0 = defaultNaNExtF80UI0;
goto uiZ;
/*------------------------------------------------------------------------
*------------------------------------------------------------------------*/
zero:
uiZ64 = packToExtF80UI64( signA, 0 );
uiZ0 = 0;
uiZ:
uZ.s.signExp = uiZ64;
uZ.s.signif = uiZ0;
return uZ.f;
}
deps/SoftFloat-3d/source/extF80_sub.c
Vendored
+80
View File
@@ -0,0 +1,80 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "softfloat.h"
extFloat80_t extF80_sub( extFloat80_t a, extFloat80_t b )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
bool signA;
union { struct extFloat80M s; extFloat80_t f; } uB;
uint_fast16_t uiB64;
uint_fast64_t uiB0;
bool signB;
#if ! defined INLINE_LEVEL || (INLINE_LEVEL < 2)
extFloat80_t
(*magsFuncPtr)(
uint_fast16_t, uint_fast64_t, uint_fast16_t, uint_fast64_t, bool );
#endif
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
signA = signExtF80UI64( uiA64 );
uB.f = b;
uiB64 = uB.s.signExp;
uiB0 = uB.s.signif;
signB = signExtF80UI64( uiB64 );
#if defined INLINE_LEVEL && (2 <= INLINE_LEVEL)
if ( signA == signB ) {
return softfloat_subMagsExtF80( uiA64, uiA0, uiB64, uiB0, signA );
} else {
return softfloat_addMagsExtF80( uiA64, uiA0, uiB64, uiB0, signA );
}
#else
magsFuncPtr =
(signA == signB) ? softfloat_subMagsExtF80 : softfloat_addMagsExtF80;
return (*magsFuncPtr)( uiA64, uiA0, uiB64, uiB0, signA );
#endif
}
deps/SoftFloat-3d/source/extF80_to_f128.c
Vendored
+75
View File
@@ -0,0 +1,75 @@
/*============================================================================
This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
Package, Release 3d, by John R. Hauser.
Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions, and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions, and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the University nor the names of its contributors may
be used to endorse or promote products derived from this software without
specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
=============================================================================*/
#include <stdbool.h>
#include <stdint.h>
#include "platform.h"
#include "internals.h"
#include "specialize.h"
#include "softfloat.h"
float128_t extF80_to_f128( extFloat80_t a )
{
union { struct extFloat80M s; extFloat80_t f; } uA;
uint_fast16_t uiA64;
uint_fast64_t uiA0;
uint_fast16_t exp;
uint_fast64_t frac;
struct commonNaN commonNaN;
struct uint128 uiZ;
bool sign;
struct uint128 frac128;
union ui128_f128 uZ;
uA.f = a;
uiA64 = uA.s.signExp;
uiA0 = uA.s.signif;
exp = expExtF80UI64( uiA64 );
frac = uiA0 & UINT64_C( 0x7FFFFFFFFFFFFFFF );
if ( (exp == 0x7FFF) && frac ) {
softfloat_extF80UIToCommonNaN( uiA64, uiA0, &commonNaN );
uiZ = softfloat_commonNaNToF128UI( &commonNaN );
} else {
sign = signExtF80UI64( uiA64 );
frac128 = softfloat_shortShiftLeft128( 0, frac, 49 );
uiZ.v64 = packToF128UI64( sign, exp, frac128.v64 );
uiZ.v0 = frac128.v0;
}
uZ.ui = uiZ;
return uZ.f;
}

Some files were not shown because too many files have changed in this diff Show More