1 /* $NetBSD: mips_opcode.h,v 1.12 2005/12/11 12:18:09 christos 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. Neither the name of the University nor the names of its contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)mips_opcode.h 8.1 (Berkeley) 6/10/93 35 */ 36 37 /* 38 * Define the instruction formats and opcode values for the 39 * MIPS instruction set. 40 */ 41 42 #include <endian.h> 43 44 /* 45 * Define the instruction formats. 46 */ 47 typedef union { 48 unsigned word; 49 50 #if BYTE_ORDER == LITTLE_ENDIAN 51 struct { 52 unsigned imm: 16; 53 unsigned rt: 5; 54 unsigned rs: 5; 55 unsigned op: 6; 56 } IType; 57 58 struct { 59 unsigned target: 26; 60 unsigned op: 6; 61 } JType; 62 63 struct { 64 unsigned func: 6; 65 unsigned shamt: 5; 66 unsigned rd: 5; 67 unsigned rt: 5; 68 unsigned rs: 5; 69 unsigned op: 6; 70 } RType; 71 72 struct { 73 unsigned func: 6; 74 unsigned fd: 5; 75 unsigned fs: 5; 76 unsigned ft: 5; 77 unsigned fmt: 4; 78 unsigned : 1; /* always '1' */ 79 unsigned op: 6; /* always '0x11' */ 80 } FRType; 81 #endif 82 #if BYTE_ORDER == BIG_ENDIAN 83 struct { 84 unsigned op: 6; 85 unsigned rs: 5; 86 unsigned rt: 5; 87 unsigned imm: 16; 88 } IType; 89 90 struct { 91 unsigned op: 6; 92 unsigned target: 26; 93 } JType; 94 95 struct { 96 unsigned op: 6; 97 unsigned rs: 5; 98 unsigned rt: 5; 99 unsigned rd: 5; 100 unsigned shamt: 5; 101 unsigned func: 6; 102 } RType; 103 104 struct { 105 unsigned op: 6; /* always '0x11' */ 106 unsigned : 1; /* always '1' */ 107 unsigned fmt: 4; 108 unsigned ft: 5; 109 unsigned fs: 5; 110 unsigned fd: 5; 111 unsigned func: 6; 112 } FRType; 113 #endif 114 } InstFmt; 115 116 /* 117 * Values for the 'op' field. 118 */ 119 #define OP_SPECIAL 000 120 #define OP_BCOND 001 121 #define OP_J 002 122 #define OP_JAL 003 123 #define OP_BEQ 004 124 #define OP_BNE 005 125 #define OP_BLEZ 006 126 #define OP_BGTZ 007 127 128 #define OP_ADDI 010 129 #define OP_ADDIU 011 130 #define OP_SLTI 012 131 #define OP_SLTIU 013 132 #define OP_ANDI 014 133 #define OP_ORI 015 134 #define OP_XORI 016 135 #define OP_LUI 017 136 137 #define OP_COP0 020 138 #define OP_COP1 021 139 #define OP_COP2 022 140 #define OP_COP3 023 141 #define OP_BEQL 024 /* MIPS-II, for r4000 port */ 142 #define OP_BNEL 025 /* MIPS-II, for r4000 port */ 143 #define OP_BLEZL 026 /* MIPS-II, for r4000 port */ 144 #define OP_BGTZL 027 /* MIPS-II, for r4000 port */ 145 146 #define OP_DADDI 030 /* MIPS-II, for r4000 port */ 147 #define OP_DADDIU 031 /* MIPS-II, for r4000 port */ 148 #define OP_LDL 032 /* MIPS-II, for r4000 port */ 149 #define OP_LDR 033 /* MIPS-II, for r4000 port */ 150 151 #define OP_SPECIAL2 034 /* QED opcodes */ 152 #define OP_SPECIAL3 037 /* mips32r2 opcodes */ 153 154 #define OP_LB 040 155 #define OP_LH 041 156 #define OP_LWL 042 157 #define OP_LW 043 158 #define OP_LBU 044 159 #define OP_LHU 045 160 #define OP_LWR 046 161 #define OP_LHU 045 162 #define OP_LWR 046 163 #define OP_LWU 047 /* MIPS-II, for r4000 port */ 164 165 #define OP_SB 050 166 #define OP_SH 051 167 #define OP_SWL 052 168 #define OP_SW 053 169 #define OP_SDL 054 /* MIPS-II, for r4000 port */ 170 #define OP_SDR 055 /* MIPS-II, for r4000 port */ 171 #define OP_SWR 056 172 #define OP_CACHE 057 /* MIPS-II, for r4000 port */ 173 174 #define OP_LL 060 175 #define OP_LWC0 OP_LL /* backwards source compatibility */ 176 #define OP_LWC1 061 177 #define OP_LWC2 062 178 #define OP_LWC3 063 179 #define OP_LLD 064 /* MIPS-II, for r4000 port */ 180 #define OP_LDC1 065 181 #define OP_LD 067 /* MIPS-II, for r4000 port */ 182 183 #define OP_SC 070 184 #define OP_SWC0 OP_SC /* backwards source compatibility */ 185 #define OP_SWC1 071 186 #define OP_SWC2 072 187 #define OP_SWC3 073 188 #define OP_SCD 074 /* MIPS-II, for r4000 port */ 189 #define OP_SDC1 075 190 #define OP_SD 077 /* MIPS-II, for r4000 port */ 191 192 /* 193 * Values for the 'func' field when 'op' == OP_SPECIAL. 194 */ 195 #define OP_SLL 000 196 #define OP_SRL 002 197 #define OP_SRA 003 198 #define OP_SLLV 004 199 #define OP_SRLV 006 200 #define OP_SRAV 007 201 202 #define OP_JR 010 203 #define OP_JALR 011 204 #define OP_SYSCALL 014 205 #define OP_BREAK 015 206 #define OP_SYNC 017 /* MIPS-II, for r4000 port */ 207 208 #define OP_MFHI 020 209 #define OP_MTHI 021 210 #define OP_MFLO 022 211 #define OP_MTLO 023 212 #define OP_DSLLV 024 /* MIPS-II, for r4000 port */ 213 #define OP_DSRLV 026 /* MIPS-II, for r4000 port */ 214 #define OP_DSRAV 027 /* MIPS-II, for r4000 port */ 215 216 #define OP_MULT 030 217 #define OP_MULTU 031 218 #define OP_DIV 032 219 #define OP_DIVU 033 220 #define OP_DMULT 034 /* MIPS-II, for r4000 port */ 221 #define OP_DMULTU 035 /* MIPS-II, for r4000 port */ 222 #define OP_DDIV 036 /* MIPS-II, for r4000 port */ 223 #define OP_DDIVU 037 /* MIPS-II, for r4000 port */ 224 225 #define OP_ADD 040 226 #define OP_ADDU 041 227 #define OP_SUB 042 228 #define OP_SUBU 043 229 #define OP_AND 044 230 #define OP_OR 045 231 #define OP_XOR 046 232 #define OP_NOR 047 233 234 #define OP_SLT 052 235 #define OP_SLTU 053 236 #define OP_DADD 054 /* MIPS-II, for r4000 port */ 237 #define OP_DADDU 055 /* MIPS-II, for r4000 port */ 238 #define OP_DSUB 056 /* MIPS-II, for r4000 port */ 239 #define OP_DSUBU 057 /* MIPS-II, for r4000 port */ 240 241 #define OP_TGE 060 /* MIPS-II, for r4000 port */ 242 #define OP_TGEU 061 /* MIPS-II, for r4000 port */ 243 #define OP_TLT 062 /* MIPS-II, for r4000 port */ 244 #define OP_TLTU 063 /* MIPS-II, for r4000 port */ 245 #define OP_TEQ 064 /* MIPS-II, for r4000 port */ 246 #define OP_TNE 066 /* MIPS-II, for r4000 port */ 247 248 #define OP_DSLL 070 /* MIPS-II, for r4000 port */ 249 #define OP_DSRL 072 /* MIPS-II, for r4000 port */ 250 #define OP_DSRA 073 /* MIPS-II, for r4000 port */ 251 #define OP_DSLL32 074 /* MIPS-II, for r4000 port */ 252 #define OP_DSRL32 076 /* MIPS-II, for r4000 port */ 253 #define OP_DSRA32 077 /* MIPS-II, for r4000 port */ 254 255 /* 256 * Values for the 'func' field when 'op' == OP_SPECIAL2. 257 */ 258 #define OP_MAD 000 /* QED */ 259 #define OP_MADU 001 /* QED */ 260 #define OP_MUL 002 /* QED */ 261 262 /* 263 * Values for the 'func' field when 'op' == OP_SPECIAL3. 264 */ 265 #define OP_EXT 000 266 #define OP_INS 004 267 #define OP_BSHFL 040 268 269 /* 270 * Values for the 'shamt' field when OP_SPECIAL3 && func OP_BSHFL. 271 */ 272 #define OP_WSBH 002 273 #define OP_SEB 020 274 #define OP_SEH 030 275 276 /* 277 * Values for the 'func' field when 'op' == OP_BCOND. 278 */ 279 #define OP_BLTZ 000 280 #define OP_BGEZ 001 281 #define OP_BLTZL 002 /* MIPS-II, for r4000 port */ 282 #define OP_BGEZL 003 /* MIPS-II, for r4000 port */ 283 284 #define OP_TGEI 010 /* MIPS-II, for r4000 port */ 285 #define OP_TGEIU 011 /* MIPS-II, for r4000 port */ 286 #define OP_TLTI 012 /* MIPS-II, for r4000 port */ 287 #define OP_TLTIU 013 /* MIPS-II, for r4000 port */ 288 #define OP_TEQI 014 /* MIPS-II, for r4000 port */ 289 #define OP_TNEI 016 /* MIPS-II, for r4000 port */ 290 291 #define OP_BLTZAL 020 /* MIPS-II, for r4000 port */ 292 #define OP_BGEZAL 021 293 #define OP_BLTZALL 022 294 #define OP_BGEZALL 023 295 296 /* 297 * Values for the 'rs' field when 'op' == OP_COPz. 298 */ 299 #define OP_MF 000 300 #define OP_DMF 001 /* MIPS-II, for r4000 port */ 301 #define OP_MT 004 302 #define OP_DMT 005 /* MIPS-II, for r4000 port */ 303 #define OP_BCx 010 304 #define OP_BCy 014 305 #define OP_CF 002 306 #define OP_CT 006 307 308 /* 309 * Values for the 'rt' field when 'op' == OP_COPz. 310 */ 311 #define COPz_BC_TF_MASK 0x01 312 #define COPz_BC_TRUE 0x01 313 #define COPz_BC_FALSE 0x00 314 #define COPz_BCL_TF_MASK 0x02 /* MIPS-II, for r4000 port */ 315 #define COPz_BCL_TRUE 0x02 /* MIPS-II, for r4000 port */ 316 #define COPz_BCL_FALSE 0x00 /* MIPS-II, for r4000 port */ 317