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