1/*	$NetBSD: asm.h,v 1.29 2000/12/14 21:29:51 jeffs Exp $	*/
2
3/*
4 * SPDX-License-Identifier: BSD-3-Clause
5 *
6 * Copyright (c) 1992, 1993
7 *	The Regents of the University of California.  All rights reserved.
8 *
9 * This code is derived from software contributed to Berkeley by
10 * Ralph Campbell.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 *    may be used to endorse or promote products derived from this software
22 *    without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 *
36 *	@(#)machAsmDefs.h	8.1 (Berkeley) 6/10/93
37 *	JNPR: asm.h,v 1.10 2007/08/09 11:23:32 katta
38 * $FreeBSD$
39 */
40
41/*
42 * machAsmDefs.h --
43 *
44 *	Macros used when writing assembler programs.
45 *
46 *	Copyright (C) 1989 Digital Equipment Corporation.
47 *	Permission to use, copy, modify, and distribute this software and
48 *	its documentation for any purpose and without fee is hereby granted,
49 *	provided that the above copyright notice appears in all copies.
50 *	Digital Equipment Corporation makes no representations about the
51 *	suitability of this software for any purpose.  It is provided "as is"
52 *	without express or implied warranty.
53 *
54 * from: Header: /sprite/src/kernel/mach/ds3100.md/RCS/machAsmDefs.h,
55 *	v 1.2 89/08/15 18:28:24 rab Exp  SPRITE (DECWRL)
56 */
57
58#ifndef _MACHINE_ABI_H_
59#define	_MACHINE_ABI_H_
60
61#if defined(__mips_o32)
62#define	SZREG	4
63#else
64#define	SZREG	8
65#endif
66
67#if defined(__mips_o32) || defined(__mips_o64)
68#define	STACK_ALIGN	8
69#else
70#define	STACK_ALIGN	16
71#endif
72
73/*
74 *  standard callframe {
75 *	register_t cf_pad[N];		o32/64 (N=0), n32 (N=1) n64 (N=1)
76 *  	register_t cf_args[4];		arg0 - arg3 (only on o32 and o64)
77 *  	register_t cf_gp;		global pointer (only on n32 and n64)
78 *  	register_t cf_sp;		frame pointer
79 *  	register_t cf_ra;		return address
80 *  };
81 */
82#if defined(__mips_o32) || defined(__mips_o64)
83#define	CALLFRAME_SIZ	(SZREG * (4 + 2))
84#define	CALLFRAME_S0	0
85#elif defined(__mips_n32) || defined(__mips_n64)
86#define	CALLFRAME_SIZ	(SZREG * 4)
87#define	CALLFRAME_S0	(CALLFRAME_SIZ - 4 * SZREG)
88#endif
89#ifndef _KERNEL
90#define	CALLFRAME_GP	(CALLFRAME_SIZ - 3 * SZREG)
91#endif
92#define	CALLFRAME_SP	(CALLFRAME_SIZ - 2 * SZREG)
93#define	CALLFRAME_RA	(CALLFRAME_SIZ - 1 * SZREG)
94
95#endif /* !_MACHINE_ABI_H_ */
96