mips_opcode.h revision 1.19
1 /* $NetBSD: mips_opcode.h,v 1.19 2015/06/01 22:55:13 matt 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 #ifndef _MIPS_MIPS_OPCODE_H_ 38 #define _MIPS_MIPS_OPCODE_H_ 39 40 /* 41 * Define the instruction formats and opcode values for the 42 * MIPS instruction set. 43 */ 44 45 /* 46 * Define the instruction formats. 47 */ 48 typedef union { 49 unsigned word; 50 51 #if BYTE_ORDER == LITTLE_ENDIAN 52 struct { 53 unsigned imm: 16; 54 unsigned rt: 5; 55 unsigned rs: 5; 56 unsigned op: 6; 57 } IType; 58 59 struct { 60 unsigned target: 26; 61 unsigned op: 6; 62 } JType; 63 64 struct { 65 unsigned func: 6; 66 unsigned shamt: 5; 67 unsigned rd: 5; 68 unsigned rt: 5; 69 unsigned rs: 5; 70 unsigned op: 6; 71 } RType; 72 73 struct { 74 unsigned func: 6; 75 unsigned fd: 5; 76 unsigned fs: 5; 77 unsigned ft: 5; 78 unsigned fmt: 4; 79 unsigned : 1; /* always '1' */ 80 unsigned op: 6; /* always '0x11' */ 81 } FRType; 82 #endif 83 #if BYTE_ORDER == BIG_ENDIAN 84 struct { 85 unsigned op: 6; 86 unsigned rs: 5; 87 unsigned rt: 5; 88 unsigned imm: 16; 89 } IType; 90 91 struct { 92 unsigned op: 6; 93 unsigned target: 26; 94 } JType; 95 96 struct { 97 unsigned op: 6; 98 unsigned rs: 5; 99 unsigned rt: 5; 100 unsigned rd: 5; 101 unsigned shamt: 5; 102 unsigned func: 6; 103 } RType; 104 105 struct { 106 unsigned op: 6; /* always '0x11' */ 107 unsigned : 1; /* always '1' */ 108 unsigned fmt: 4; 109 unsigned ft: 5; 110 unsigned fs: 5; 111 unsigned fd: 5; 112 unsigned func: 6; 113 } FRType; 114 #endif 115 } InstFmt; 116 117 /* 118 * Values for the 'op' field. 119 */ 120 #define OP_SPECIAL 000 121 #define OP_REGIMM 001 122 #define OP_J 002 123 #define OP_JAL 003 124 #define OP_BEQ 004 125 #define OP_BNE 005 126 #define OP_BLEZ 006 127 #define OP_BGTZ 007 128 129 #define OP_ADDI 010 130 #define OP_ADDIU 011 131 #define OP_SLTI 012 132 #define OP_SLTIU 013 133 #define OP_ANDI 014 134 #define OP_ORI 015 135 #define OP_XORI 016 136 #define OP_LUI 017 137 138 #define OP_COP0 020 139 #define OP_COP1 021 140 #define OP_COP2 022 141 #define OP_COP3 023 142 #define OP_BEQL 024 /* MIPS-II, for r4000 port */ 143 #define OP_BNEL 025 /* MIPS-II, for r4000 port */ 144 #define OP_BLEZL 026 /* MIPS-II, for r4000 port */ 145 #define OP_BGTZL 027 /* MIPS-II, for r4000 port */ 146 147 #define OP_DADDI 030 /* MIPS-II, for r4000 port */ 148 #define OP_DADDIU 031 /* MIPS-II, for r4000 port */ 149 #define OP_LDL 032 /* MIPS-II, for r4000 port */ 150 #define OP_LDR 033 /* MIPS-II, for r4000 port */ 151 152 #define OP_SPECIAL2 034 /* QED opcodes */ 153 #define OP_SPECIAL3 037 154 155 #define OP_LB 040 156 #define OP_LH 041 157 #define OP_LWL 042 158 #define OP_LW 043 159 #define OP_LBU 044 160 #define OP_LHU 045 161 #define OP_LWR 046 162 #define OP_LHU 045 163 #define OP_LWR 046 164 #define OP_LWU 047 /* MIPS-II, for r4000 port */ 165 166 #define OP_SB 050 167 #define OP_SH 051 168 #define OP_SWL 052 169 #define OP_SW 053 170 #define OP_SDL 054 /* MIPS-II, for r4000 port */ 171 #define OP_SDR 055 /* MIPS-II, for r4000 port */ 172 #define OP_SWR 056 173 #define OP_CACHE 057 /* MIPS-II, for r4000 port */ 174 175 #define OP_LL 060 176 #define OP_LWC0 OP_LL /* backwards source compatibility */ 177 #define OP_LWC1 061 178 #define OP_LWC2 062 179 #define OP_PREF 063 180 #define OP_LLD 064 /* MIPS-II, for r4000 port */ 181 #define OP_LDC1 065 182 #define OP_LD 067 /* MIPS-II, for r4000 port */ 183 184 #define OP_SC 070 185 #define OP_SWC0 OP_SC /* backwards source compatibility */ 186 #define OP_SWC1 071 187 #define OP_SWC2 072 188 #define OP_RSVD073 073 189 #define OP_SCD 074 /* MIPS-II, for r4000 port */ 190 #define OP_SDC1 075 191 #define OP_SD 077 /* MIPS-II, for r4000 port */ 192 193 /* 194 * Values for the 'func' field when 'op' == OP_SPECIAL. 195 */ 196 #define OP_SLL 000 197 #define OP_SRL 002 198 #define OP_SRA 003 199 #define OP_SLLV 004 200 #define OP_SRLV 006 201 #define OP_SRAV 007 202 203 #define OP_JR 010 204 #define OP_JALR 011 205 #define OP_SYSCALL 014 206 #define OP_BREAK 015 207 #define OP_SYNC 017 /* MIPS-II, for r4000 port */ 208 209 #define OP_MFHI 020 210 #define OP_MTHI 021 211 #define OP_MFLO 022 212 #define OP_MTLO 023 213 #define OP_DSLLV 024 /* MIPS-II, for r4000 port */ 214 #define OP_DSRLV 026 /* MIPS-II, for r4000 port */ 215 #define OP_DSRAV 027 /* MIPS-II, for r4000 port */ 216 217 #define OP_MULT 030 218 #define OP_MULTU 031 219 #define OP_DIV 032 220 #define OP_DIVU 033 221 #define OP_DMULT 034 /* MIPS-II, for r4000 port */ 222 #define OP_DMULTU 035 /* MIPS-II, for r4000 port */ 223 #define OP_DDIV 036 /* MIPS-II, for r4000 port */ 224 #define OP_DDIVU 037 /* MIPS-II, for r4000 port */ 225 226 #define OP_ADD 040 227 #define OP_ADDU 041 228 #define OP_SUB 042 229 #define OP_SUBU 043 230 #define OP_AND 044 231 #define OP_OR 045 232 #define OP_XOR 046 233 #define OP_NOR 047 234 235 #define OP_SLT 052 236 #define OP_SLTU 053 237 #define OP_DADD 054 /* MIPS-II, for r4000 port */ 238 #define OP_DADDU 055 /* MIPS-II, for r4000 port */ 239 #define OP_DSUB 056 /* MIPS-II, for r4000 port */ 240 #define OP_DSUBU 057 /* MIPS-II, for r4000 port */ 241 242 #define OP_TGE 060 /* MIPS-II, for r4000 port */ 243 #define OP_TGEU 061 /* MIPS-II, for r4000 port */ 244 #define OP_TLT 062 /* MIPS-II, for r4000 port */ 245 #define OP_TLTU 063 /* MIPS-II, for r4000 port */ 246 #define OP_TEQ 064 /* MIPS-II, for r4000 port */ 247 #define OP_TNE 066 /* MIPS-II, for r4000 port */ 248 249 #define OP_DSLL 070 /* MIPS-II, for r4000 port */ 250 #define OP_DSRL 072 /* MIPS-II, for r4000 port */ 251 #define OP_DSRA 073 /* MIPS-II, for r4000 port */ 252 #define OP_DSLL32 074 /* MIPS-II, for r4000 port */ 253 #define OP_DSRL32 076 /* MIPS-II, for r4000 port */ 254 #define OP_DSRA32 077 /* MIPS-II, for r4000 port */ 255 256 /* 257 * Values for the 'func' field when 'op' == OP_SPECIAL2. 258 */ 259 #define OP_MAD 000 /* QED */ 260 #define OP_MADU 001 /* QED */ 261 #define OP_MUL 002 /* QED */ 262 #define OP_MSUB 004 /* MIPS32/64 */ 263 #define OP_MSUBU 005 /* MIPS32/64 */ 264 #define OP_CLZ 040 /* MIPS32/64 */ 265 #define OP_CLO 041 /* MIPS32/64 */ 266 #define OP_DCLZ 044 /* MIPS32/64 */ 267 #define OP_DCLO 045 /* MIPS32/64 */ 268 269 /* 270 * Values for the 'func' field when 'op' == OP_SPECIAL3. 271 */ 272 #define OP_LX 012 /* DSP */ 273 #define OP_RDHWR 073 /* MIPS32/64 r2 */ 274 275 #define OP_LX_LWX 0 /* lwx */ 276 #define OP_LX_LHX 4 /* lhx */ 277 #define OP_LX_LBUX 6 /* lbux */ 278 #define OP_LX_LDX 8 /* ldx */ 279 280 /* 281 * Values for the 'func' field when 'op' == OP_REGIMM. 282 */ 283 #define OP_BLTZ 000 284 #define OP_BGEZ 001 285 #define OP_BLTZL 002 /* MIPS-II, for r4000 port */ 286 #define OP_BGEZL 003 /* MIPS-II, for r4000 port */ 287 288 #define OP_TGEI 010 /* MIPS-II, for r4000 port */ 289 #define OP_TGEIU 011 /* MIPS-II, for r4000 port */ 290 #define OP_TLTI 012 /* MIPS-II, for r4000 port */ 291 #define OP_TLTIU 013 /* MIPS-II, for r4000 port */ 292 #define OP_TEQI 014 /* MIPS-II, for r4000 port */ 293 #define OP_TNEI 016 /* MIPS-II, for r4000 port */ 294 295 #define OP_BLTZAL 020 /* MIPS-II, for r4000 port */ 296 #define OP_BGEZAL 021 297 #define OP_BLTZALL 022 298 #define OP_BGEZALL 023 299 300 /* 301 * Values for the 'rs' field when 'op' == OP_COPz. 302 */ 303 #define OP_MF 000 304 #define OP_DMF 001 /* MIPS-II, for r4000 port */ 305 #define OP_CF 002 306 #define OP_MFH 003 307 #define OP_MT 004 308 #define OP_DMT 005 /* MIPS-II, for r4000 port */ 309 #define OP_CT 006 310 #define OP_MTH 007 311 #define OP_BCx 010 312 #define OP_BCy 014 313 314 /* 315 * Values for the 'rt' field when 'op' == OP_COPz. 316 */ 317 #define COPz_BC_TF_MASK 0x01 318 #define COPz_BC_TRUE 0x01 319 #define COPz_BC_FALSE 0x00 320 #define COPz_BCL_TF_MASK 0x02 /* MIPS-II, for r4000 port */ 321 #define COPz_BCL_TRUE 0x02 /* MIPS-II, for r4000 port */ 322 #define COPz_BCL_FALSE 0x00 /* MIPS-II, for r4000 port */ 323 324 #define INSN_LUI_P(insn) (((insn) >> 26) == OP_LUI) 325 #define INSN_LW_P(insn) (((insn) >> 26) == OP_LW) 326 #define INSN_SW_P(insn) (((insn) >> 26) == OP_SW) 327 #define INSN_LD_P(insn) (((insn) >> 26) == OP_LD) 328 #define INSN_SD_P(insn) (((insn) >> 26) == OP_SD) 329 330 #define INSN_LOAD_P(insn) (INSN_LD_P(insn) || INSN_LW_P(insn)) 331 #define INSN_STORE_P(insn) (INSN_SD_P(insn) || INSN_SW_P(insn)) 332 333 #endif /* _MIPS_MIPS_OPCODE_H_ */ 334
Indexes created Tue Sep 30 20:09:53 GMT 2025