asm.h revision 1.1.1.2
1 /* $OpenBSD: asm.h,v 1.6 1997/05/11 16:23:42 pefo Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Ralph Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * Copyright (C) 1989 Digital Equipment Corporation. 39 * Permission to use, copy, modify, and distribute this software and 40 * its documentation for any purpose and without fee is hereby granted, 41 * provided that the above copyright notice appears in all copies. 42 * Digital Equipment Corporation makes no representations about the 43 * suitability of this software for any purpose. It is provided "as is" 44 * without express or implied warranty. 45 */ 46 47 #ifndef _MACHASMDEFS 48 #define _MACHASMDEFS 49 50 #include <machine/regdef.h> 51 52 #ifndef ABICALLS 53 #define ABICALLS .abicalls 54 #endif 55 56 #if defined(ABICALLS) && !defined(_KERNEL) 57 ABICALLS 58 #endif 59 60 #define RCSID(x) 61 62 #define _C_LABEL(x) x 63 64 /* 65 * Define how to access unaligned data word 66 */ 67 #ifdef MIPSEL 68 #define LWLO lwl 69 #define LWHI lwr 70 #define SWLO swl 71 #define SWHI swr 72 #endif 73 #ifdef MIPSEB 74 #define LWLO lwr 75 #define LWHI lwl 76 #define SWLO swr 77 #define SWHI swl 78 #endif 79 80 /* 81 * Code for setting gp reg if abicalls are used. 82 */ 83 #if defined(ABICALLS) && !defined(_KERNEL) 84 #define ABISETUP \ 85 .set noreorder; \ 86 .cpload t9; \ 87 .set reorder; 88 #else 89 #define ABISETUP 90 #endif 91 92 /* 93 * Define -pg profile entry code. 94 */ 95 #if defined(GPROF) || defined(PROF) 96 #define MCOUNT \ 97 subu sp, sp, 32; \ 98 .cprestore 16; \ 99 sw ra, 28(sp); \ 100 sw gp, 24(sp); \ 101 .set noat; \ 102 .set noreorder; \ 103 move AT, ra; \ 104 jal _mcount; \ 105 subu sp, sp, 8; \ 106 lw ra, 28(sp); \ 107 addu sp, sp, 32; \ 108 .set reorder; \ 109 .set at; 110 #else 111 #define MCOUNT 112 #endif 113 114 /* 115 * LEAF(x) 116 * 117 * Declare a leaf routine. 118 */ 119 #define LEAF(x) \ 120 .align 3; \ 121 .globl x; \ 122 .ent x, 0; \ 123 x: ; \ 124 .frame sp, 0, ra; \ 125 ABISETUP \ 126 MCOUNT 127 128 #define ALEAF(x) \ 129 .globl x; \ 130 x: 131 132 /* 133 * NLEAF(x) 134 * 135 * Declare a non-profiled leaf routine. 136 */ 137 #define NLEAF(x) \ 138 .align 3; \ 139 .globl x; \ 140 .ent x, 0; \ 141 x: ; \ 142 .frame sp, 0, ra; \ 143 ABISETUP 144 145 /* 146 * NON_LEAF(x) 147 * 148 * Declare a non-leaf routine (a routine that makes other C calls). 149 */ 150 #define NON_LEAF(x, fsize, retpc) \ 151 .align 3; \ 152 .globl x; \ 153 .ent x, 0; \ 154 x: ; \ 155 .frame sp, fsize, retpc; \ 156 ABISETUP \ 157 MCOUNT 158 159 /* 160 * NNON_LEAF(x) 161 * 162 * Declare a non-profiled non-leaf routine 163 * (a routine that makes other C calls). 164 */ 165 #define NNON_LEAF(x, fsize, retpc) \ 166 .align 3; \ 167 .globl x; \ 168 .ent x, 0; \ 169 x: ; \ 170 .frame sp, fsize, retpc \ 171 ABISETUP 172 173 /* 174 * END(x) 175 * 176 * Mark end of a procedure. 177 */ 178 #define END(x) \ 179 .end x 180 181 #define STAND_FRAME_SIZE 24 182 #define STAND_RA_OFFSET 20 183 184 /* 185 * Macros to panic and printf from assembly language. 186 */ 187 #define PANIC(msg) \ 188 la a0, 9f; \ 189 jal panic; \ 190 MSG(msg) 191 192 #define PRINTF(msg) \ 193 la a0, 9f; \ 194 jal printf; \ 195 MSG(msg) 196 197 #define MSG(msg) \ 198 .rdata; \ 199 9: .asciiz msg; \ 200 .text 201 202 #define ASMSTR(str) \ 203 .asciiz str; \ 204 .align 3 205 206 #endif /* _MACHASMDEFS */ 207
Indexes created Sat Oct 11 19:10:01 GMT 2025