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zig/lib/libc/include/sparc64-openbsd-none/machine/reg.h
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Alex Rønne Petersen 66d97267c7 libc: add openbsd 7.8 headers
This excludes all headers in /usr/include/dev because that directory is bonkers
huge (18M). We can add these on an as-needed basis.
2026-01-05 14:52:48 +01:00

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/* $OpenBSD: reg.h,v 1.9 2024/03/29 21:14:31 miod Exp $ */
/* $NetBSD: reg.h,v 1.8 2001/06/19 12:59:16 wiz Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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.
*
* @(#)reg.h 8.1 (Berkeley) 6/11/93
*/
#ifndef _MACHINE_REG_H_
#define _MACHINE_REG_H_
/*
* The v9 register window. Each stack pointer (%o6 aka %sp) in each window
* must ALWAYS point to some place at which it is safe to scribble on
* 64 bytes. (If not, your process gets mangled.) Furthermore, each
* stack pointer should be aligned on a 16-byte boundary (plus the BIAS)
* for v9 stacks (the kernel as currently coded allows arbitrary alignment,
* but with a hefty performance penalty).
*/
struct rwindow {
int64_t rw_local[8]; /* %l0..%l7 */
int64_t rw_in[8]; /* %i0..%i7 */
};
struct reg {
int64_t r_tstate; /* tstate register */
int64_t r_pc; /* return pc */
int64_t r_npc; /* return npc */
int r_y; /* %y register -- 32-bits */
int64_t r_global[8]; /* %g* registers in trap's caller */
int64_t r_out[8]; /* %o* registers in trap's caller */
int64_t r_local[8]; /* %l* registers in trap's caller */
int64_t r_in[8]; /* %i* registers in trap's caller */
};
/*
* FP coprocessor registers.
*/
struct fpstate {
u_int fs_regs[64]; /* our view is 64 32-bit registers */
int64_t fs_fsr; /* %fsr */
int fs_gsr; /* graphics state reg */
};
/*
* The actual FP registers are made accessible (c.f. ptrace(2)) through
* a `struct fpreg'; <arch/sparc64/sparc64/process_machdep.c> relies on the
* fact that `fpreg' is a prefix of `fpstate'.
*/
struct fpreg {
u_int fr_regs[64]; /* our view is 64 32-bit registers */
int64_t fr_fsr; /* %fsr */
int fr_gsr; /* graphics state reg */
};
#endif /* _MACHINE_REG_H_ */