1/* $OpenBSD: mips_opcode.h,v 1.9 2017/04/20 15:42:26 visa 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 * from: @(#)mips_opcode.h 8.1 (Berkeley) 6/10/93 35 */ 36 37#ifndef _MIPS64_MIPS_OPCODE_H_ 38#define _MIPS64_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 */ 48typedef union { 49 unsigned word; 50 51#if BYTE_ORDER == BIG_ENDIAN 52 struct { 53 unsigned op: 6; 54 unsigned rs: 5; 55 unsigned rt: 5; 56 unsigned imm: 16; 57 } IType; 58 59 struct { 60 unsigned op: 6; 61 unsigned target: 26; 62 } JType; 63 64 struct { 65 unsigned op: 6; 66 unsigned rs: 5; 67 unsigned rt: 5; 68 unsigned rd: 5; 69 unsigned shamt: 5; 70 unsigned func: 6; 71 } RType; 72 73 struct { 74 unsigned op: 6; /* COP1 */ 75 unsigned : 1; /* always '1' */ 76 unsigned fmt: 4; 77 unsigned ft: 5; 78 unsigned fs: 5; 79 unsigned fd: 5; 80 unsigned func: 6; 81 } FRType; 82 83 struct { 84 unsigned op: 6; /* COP1X */ 85 unsigned fr: 5; 86 unsigned ft: 5; 87 unsigned fs: 5; 88 unsigned fd: 5; 89 unsigned op4: 3; 90 unsigned fmt3: 3; 91 } FQType; 92#endif 93#if BYTE_ORDER == LITTLE_ENDIAN 94 struct { 95 unsigned imm: 16; 96 unsigned rt: 5; 97 unsigned rs: 5; 98 unsigned op: 6; 99 } IType; 100 101 struct { 102 unsigned target: 26; 103 unsigned op: 6; 104 } JType; 105 106 struct { 107 unsigned func: 6; 108 unsigned shamt: 5; 109 unsigned rd: 5; 110 unsigned rt: 5; 111 unsigned rs: 5; 112 unsigned op: 6; 113 } RType; 114 115 struct { 116 unsigned func: 6; 117 unsigned fd: 5; 118 unsigned fs: 5; 119 unsigned ft: 5; 120 unsigned fmt: 4; 121 unsigned : 1; /* always '1' */ 122 unsigned op: 6; /* COP1 */ 123 } FRType; 124 125 struct { 126 unsigned fmt3: 3; 127 unsigned op4: 3; 128 unsigned fd: 5; 129 unsigned fs: 5; 130 unsigned ft: 5; 131 unsigned fr: 5; 132 unsigned op: 6; /* COP1X */ 133 } FQType; 134#endif 135} InstFmt; 136 137/* 138 * Values for the 'op' field. 139 */ 140#define OP_SPECIAL 000 141#define OP_BCOND 001 142#define OP_J 002 143#define OP_JAL 003 144#define OP_BEQ 004 145#define OP_BNE 005 146#define OP_BLEZ 006 147#define OP_BGTZ 007 148 149#define OP_ADDI 010 150#define OP_ADDIU 011 151#define OP_SLTI 012 152#define OP_SLTIU 013 153#define OP_ANDI 014 154#define OP_ORI 015 155#define OP_XORI 016 156#define OP_LUI 017 157 158#define OP_COP0 020 159#define OP_COP1 021 160#define OP_COP2 022 161#define OP_COP3 023 162#define OP_COP1X 023 163#define OP_BEQL 024 164#define OP_BNEL 025 165#define OP_BLEZL 026 166#define OP_BGTZL 027 167 168#define OP_DADDI 030 169#define OP_DADDIU 031 170#define OP_LDL 032 171#define OP_LDR 033 172 173#define OP_SPECIAL3 037 174 175#define OP_LB 040 176#define OP_LH 041 177#define OP_LWL 042 178#define OP_LW 043 179#define OP_LBU 044 180#define OP_LHU 045 181#define OP_LWR 046 182#define OP_LWU 047 183 184#define OP_SB 050 185#define OP_SH 051 186#define OP_SWL 052 187#define OP_SW 053 188#define OP_SDL 054 189#define OP_SDR 055 190#define OP_SWR 056 191#define OP_CACHE 057 192 193#define OP_LL 060 194#define OP_LWC1 061 195#define OP_LWC2 062 196#define OP_LWC3 063 197#define OP_PREF 063 198#define OP_LLD 064 199#define OP_LDC1 065 200#define OP_LDC2 066 201#define OP_LD 067 202 203#define OP_SC 070 204#define OP_SWC1 071 205#define OP_SWC2 072 206#define OP_SWC3 073 207#define OP_SCD 074 208#define OP_SDC1 075 209#define OP_SDC2 076 210#define OP_SD 077 211 212/* 213 * Values for the 'func' field when 'op' == OP_SPECIAL. 214 */ 215#define OP_SLL 000 216#define OP_MOVCI 001 217#define OP_SRL 002 218#define OP_SRA 003 219#define OP_SLLV 004 220#define OP_SRLV 006 221#define OP_SRAV 007 222 223#define OP_JR 010 224#define OP_JALR 011 225#define OP_MOVZ 012 226#define OP_MOVN 013 227#define OP_SYSCALL 014 228#define OP_BREAK 015 229#define OP_SYNC 017 230 231#define OP_MFHI 020 232#define OP_MTHI 021 233#define OP_MFLO 022 234#define OP_MTLO 023 235#define OP_DSLLV 024 236#define OP_DSRLV 026 237#define OP_DSRAV 027 238 239#define OP_MULT 030 240#define OP_MULTU 031 241#define OP_DIV 032 242#define OP_DIVU 033 243#define OP_DMULT 034 244#define OP_DMULTU 035 245#define OP_DDIV 036 246#define OP_DDIVU 037 247 248#define OP_ADD 040 249#define OP_ADDU 041 250#define OP_SUB 042 251#define OP_SUBU 043 252#define OP_AND 044 253#define OP_OR 045 254#define OP_XOR 046 255#define OP_NOR 047 256 257#define OP_SLT 052 258#define OP_SLTU 053 259#define OP_DADD 054 260#define OP_DADDU 055 261#define OP_DSUB 056 262#define OP_DSUBU 057 263 264#define OP_TGE 060 265#define OP_TGEU 061 266#define OP_TLT 062 267#define OP_TLTU 063 268#define OP_TEQ 064 269#define OP_TNE 066 270 271#define OP_DSLL 070 272#define OP_DSRL 072 273#define OP_DSRA 073 274#define OP_DSLL32 074 275#define OP_DSRL32 076 276#define OP_DSRA32 077 277 278/* 279 * Values for the 'rt' field when 'op' == OP_BCOND. 280 */ 281#define OP_BLTZ 000 282#define OP_BGEZ 001 283#define OP_BLTZL 002 284#define OP_BGEZL 003 285 286#define OP_TGEI 010 287#define OP_TGEIU 011 288#define OP_TLTI 012 289#define OP_TLTIU 013 290#define OP_TEQI 014 291#define OP_TNEI 016 292 293#define OP_BLTZAL 020 294#define OP_BGEZAL 021 295#define OP_BLTZALL 022 296#define OP_BGEZALL 023 297 298/* 299 * Values for the 'rs' field when 'op' == OP_COPz. 300 */ 301#define OP_MF 000 302#define OP_DMF 001 303#define OP_CF 002 304#define OP_MFH 003 305#define OP_MT 004 306#define OP_DMT 005 307#define OP_CT 006 308#define OP_MTH 007 309#define OP_BC 010 310#define OP_C0MISC 020 /* cop0 only */ 311#define OP_TFP_C0MISC 030 /* cop0 only on R8000 */ 312 313/* 314 * Values for the 'rt' field when 'op' == OP_COPz. 315 */ 316#define COPz_BC_TF_MASK 0x01 317#define COPz_BC_TRUE 0x01 318#define COPz_BC_FALSE 0x00 319#define COPz_BCL_TF_MASK 0x02 320#define COPz_BCL_TRUE 0x02 321#define COPz_BCL_FALSE 0x00 322#define COPz_BC_CC_MASK 0x1c 323#define COPz_BC_CC_SHIFT 2 324 325/* 326 * Values for the 'func' field when 'op' == OP_COP1X. 327 */ 328#define OP_LWXC1 000 329#define OP_LDXC1 001 330#define OP_SWXC1 010 331#define OP_SDXC1 011 332#define OP_PREFX 017 333 334/* 335 * Values for the 'op4' field when 'op' == OP_COP1X. 336 */ 337#define OP_MADD 04 338#define OP_MSUB 05 339#define OP_NMADD 06 340#define OP_NMSUB 07 341 342/* 343 * Values for the 'func' field when 'op' == OP_SPECIAL3. 344 */ 345#define OP_RDHWR 073 346 347#endif /* !_MIPS64_MIPS_OPCODE_H_ */ 348