sys/arch/mips/include/mips_opcode.h

   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 /*
  43  * Define the instruction formats.
  44  */
  45 typedef union {
  46         unsigned word;
  47
  48 #if BYTE_ORDER == LITTLE_ENDIAN
  49         struct {
  50                 unsigned imm: 16;
  51                 unsigned rt: 5;
  52                 unsigned rs: 5;
  53                 unsigned op: 6;
  54         } IType;
  55
  56         struct {
  57                 unsigned target: 26;
  58                 unsigned op: 6;
  59         } JType;
  60
  61         struct {
  62                 unsigned func: 6;
  63                 unsigned shamt: 5;
  64                 unsigned rd: 5;
  65                 unsigned rt: 5;
  66                 unsigned rs: 5;
  67                 unsigned op: 6;
  68         } RType;
  69
  70         struct {
  71                 unsigned func: 6;
  72                 unsigned fd: 5;
  73                 unsigned fs: 5;
  74                 unsigned ft: 5;
  75                 unsigned fmt: 4;
  76                 unsigned : 1;           /* always '1' */
  77                 unsigned op: 6;         /* always '0x11' */
  78         } FRType;
  79 #endif
  80 #if BYTE_ORDER == BIG_ENDIAN
  81         struct {
  82                 unsigned op: 6;
  83                 unsigned rs: 5;
  84                 unsigned rt: 5;
  85                 unsigned imm: 16;
  86         } IType;
  87
  88         struct {
  89                 unsigned op: 6;
  90                 unsigned target: 26;
  91         } JType;
  92
  93         struct {
  94                 unsigned op: 6;
  95                 unsigned rs: 5;
  96                 unsigned rt: 5;
  97                 unsigned rd: 5;
  98                 unsigned shamt: 5;
  99                 unsigned func: 6;
 100         } RType;
 101
 102         struct {
 103                 unsigned op: 6;         /* always '0x11' */
 104                 unsigned : 1;           /* always '1' */
 105                 unsigned fmt: 4;
 106                 unsigned ft: 5;
 107                 unsigned fs: 5;
 108                 unsigned fd: 5;
 109                 unsigned func: 6;
 110         } FRType;
 111 #endif
 112 } InstFmt;
 113
 114 /*
 115  * Values for the 'op' field.
 116  */
 117 #define OP_SPECIAL      000
 118 #define OP_BCOND        001
 119 #define OP_J            002
 120 #define OP_JAL          003
 121 #define OP_BEQ          004
 122 #define OP_BNE          005
 123 #define OP_BLEZ         006
 124 #define OP_BGTZ         007
 125
 126 #define OP_ADDI         010
 127 #define OP_ADDIU        011
 128 #define OP_SLTI         012
 129 #define OP_SLTIU        013
 130 #define OP_ANDI         014
 131 #define OP_ORI          015
 132 #define OP_XORI         016
 133 #define OP_LUI          017
 134
 135 #define OP_COP0         020
 136 #define OP_COP1         021
 137 #define OP_COP2         022
 138 #define OP_COP3         023
 139 #define OP_BEQL         024             /* MIPS-II, for r4000 port */
 140 #define OP_BNEL         025             /* MIPS-II, for r4000 port */
 141 #define OP_BLEZL        026             /* MIPS-II, for r4000 port */
 142 #define OP_BGTZL        027             /* MIPS-II, for r4000 port */
 143
 144 #define OP_DADDI        030             /* MIPS-II, for r4000 port */
 145 #define OP_DADDIU       031             /* MIPS-II, for r4000 port */
 146 #define OP_LDL          032             /* MIPS-II, for r4000 port */
 147 #define OP_LDR          033             /* MIPS-II, for r4000 port */
 148
 149 #define OP_SPECIAL2     034             /* QED opcodes */
 150
 151 #define OP_LB           040
 152 #define OP_LH           041
 153 #define OP_LWL          042
 154 #define OP_LW           043
 155 #define OP_LBU          044
 156 #define OP_LHU          045
 157 #define OP_LWR          046
 158 #define OP_LHU          045
 159 #define OP_LWR          046
 160 #define OP_LWU          047             /* MIPS-II, for r4000 port */
 161
 162 #define OP_SB           050
 163 #define OP_SH           051
 164 #define OP_SWL          052
 165 #define OP_SW           053
 166 #define OP_SDL          054             /* MIPS-II, for r4000 port */
 167 #define OP_SDR          055             /* MIPS-II, for r4000 port */
 168 #define OP_SWR          056
 169 #define OP_CACHE        057             /* MIPS-II, for r4000 port */
 170
 171 #define OP_LL           060
 172 #define OP_LWC0         OP_LL   /* backwards source compatibility */
 173 #define OP_LWC1         061
 174 #define OP_LWC2         062
 175 #define OP_LWC3         063
 176 #define OP_LLD          064             /* MIPS-II, for r4000 port */
 177 #define OP_LDC1         065
 178 #define OP_LD           067             /* MIPS-II, for r4000 port */
 179
 180 #define OP_SC           070
 181 #define OP_SWC0         OP_SC   /* backwards source compatibility */
 182 #define OP_SWC1         071
 183 #define OP_SWC2         072
 184 #define OP_SWC3         073
 185 #define OP_SCD          074             /* MIPS-II, for r4000 port */
 186 #define OP_SDC1         075
 187 #define OP_SD           077             /* MIPS-II, for r4000 port */
 188
 189 /*
 190  * Values for the 'func' field when 'op' == OP_SPECIAL.
 191  */
 192 #define OP_SLL          000
 193 #define OP_SRL          002
 194 #define OP_SRA          003
 195 #define OP_SLLV         004
 196 #define OP_SRLV         006
 197 #define OP_SRAV         007
 198
 199 #define OP_JR           010
 200 #define OP_JALR         011
 201 #define OP_SYSCALL      014
 202 #define OP_BREAK        015
 203 #define OP_SYNC         017             /* MIPS-II, for r4000 port */
 204
 205 #define OP_MFHI         020
 206 #define OP_MTHI         021
 207 #define OP_MFLO         022
 208 #define OP_MTLO         023
 209 #define OP_DSLLV        024             /* MIPS-II, for r4000 port */
 210 #define OP_DSRLV        026             /* MIPS-II, for r4000 port */
 211 #define OP_DSRAV        027             /* MIPS-II, for r4000 port */
 212
 213 #define OP_MULT         030
 214 #define OP_MULTU        031
 215 #define OP_DIV          032
 216 #define OP_DIVU         033
 217 #define OP_DMULT        034             /* MIPS-II, for r4000 port */
 218 #define OP_DMULTU       035             /* MIPS-II, for r4000 port */
 219 #define OP_DDIV         036             /* MIPS-II, for r4000 port */
 220 #define OP_DDIVU        037             /* MIPS-II, for r4000 port */
 221
 222 #define OP_ADD          040
 223 #define OP_ADDU         041
 224 #define OP_SUB          042
 225 #define OP_SUBU         043
 226 #define OP_AND          044
 227 #define OP_OR           045
 228 #define OP_XOR          046
 229 #define OP_NOR          047
 230
 231 #define OP_SLT          052
 232 #define OP_SLTU         053
 233 #define OP_DADD         054             /* MIPS-II, for r4000 port */
 234 #define OP_DADDU        055             /* MIPS-II, for r4000 port */
 235 #define OP_DSUB         056             /* MIPS-II, for r4000 port */
 236 #define OP_DSUBU        057             /* MIPS-II, for r4000 port */
 237
 238 #define OP_TGE          060             /* MIPS-II, for r4000 port */
 239 #define OP_TGEU         061             /* MIPS-II, for r4000 port */
 240 #define OP_TLT          062             /* MIPS-II, for r4000 port */
 241 #define OP_TLTU         063             /* MIPS-II, for r4000 port */
 242 #define OP_TEQ          064             /* MIPS-II, for r4000 port */
 243 #define OP_TNE          066             /* MIPS-II, for r4000 port */
 244
 245 #define OP_DSLL         070             /* MIPS-II, for r4000 port */
 246 #define OP_DSRL         072             /* MIPS-II, for r4000 port */
 247 #define OP_DSRA         073             /* MIPS-II, for r4000 port */
 248 #define OP_DSLL32       074             /* MIPS-II, for r4000 port */
 249 #define OP_DSRL32       076             /* MIPS-II, for r4000 port */
 250 #define OP_DSRA32       077             /* MIPS-II, for r4000 port */
 251
 252 /*
 253  * Values for the 'func' field when 'op' == OP_SPECIAL2.
 254  */
 255 #define OP_MAD          000             /* QED */
 256 #define OP_MADU         001             /* QED */
 257 #define OP_MUL          002             /* QED */
 258
 259 /*
 260  * Values for the 'func' field when 'op' == OP_BCOND.
 261  */
 262 #define OP_BLTZ         000
 263 #define OP_BGEZ         001
 264 #define OP_BLTZL        002             /* MIPS-II, for r4000 port */
 265 #define OP_BGEZL        003             /* MIPS-II, for r4000 port */
 266
 267 #define OP_TGEI         010             /* MIPS-II, for r4000 port */
 268 #define OP_TGEIU        011             /* MIPS-II, for r4000 port */
 269 #define OP_TLTI         012             /* MIPS-II, for r4000 port */
 270 #define OP_TLTIU        013             /* MIPS-II, for r4000 port */
 271 #define OP_TEQI         014             /* MIPS-II, for r4000 port */
 272 #define OP_TNEI         016             /* MIPS-II, for r4000 port */
 273
 274 #define OP_BLTZAL       020             /* MIPS-II, for r4000 port */
 275 #define OP_BGEZAL       021
 276 #define OP_BLTZALL      022
 277 #define OP_BGEZALL      023
 278
 279 /*
 280  * Values for the 'rs' field when 'op' == OP_COPz.
 281  */
 282 #define OP_MF           000
 283 #define OP_DMF          001             /* MIPS-II, for r4000 port */
 284 #define OP_CF           002
 285 #define OP_MFH          003
 286 #define OP_MT           004
 287 #define OP_DMT          005             /* MIPS-II, for r4000 port */
 288 #define OP_CT           006
 289 #define OP_MTH          007
 290 #define OP_BCx          010
 291 #define OP_BCy          014
 292
 293 /*
 294  * Values for the 'rt' field when 'op' == OP_COPz.
 295  */
 296 #define COPz_BC_TF_MASK 0x01
 297 #define COPz_BC_TRUE    0x01
 298 #define COPz_BC_FALSE   0x00
 299 #define COPz_BCL_TF_MASK        0x02            /* MIPS-II, for r4000 port */
 300 #define COPz_BCL_TRUE   0x02            /* MIPS-II, for r4000 port */
 301 #define COPz_BCL_FALSE  0x00            /* MIPS-II, for r4000 port */