opcodes/m10200-opc.c

   1 /* Assemble Matsushita MN10200 instructions.
   2    Copyright (C) 1996-2019 Free Software Foundation, Inc.
   3
   4    This file is part of the GNU opcodes library.
   5
   6    This library is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3, or (at your option)
   9    any later version.
  10
  11    It is distributed in the hope that it will be useful, but WITHOUT
  12    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  14    License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program; if not, write to the Free Software
  18    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  19    MA 02110-1301, USA.  */
  20
  21 #include "sysdep.h"
  22 #include "opcode/mn10200.h"
  23
  24 \f
  25 const struct mn10200_operand mn10200_operands[] = {
  26 #define UNUSED  0
  27   {0, 0, 0},
  28
  29 /* dn register in the first register operand position.  */
  30 #define DN0      (UNUSED+1)
  31   {2, 0, MN10200_OPERAND_DREG},
  32
  33 /* dn register in the second register operand position.  */
  34 #define DN1      (DN0+1)
  35   {2, 2, MN10200_OPERAND_DREG},
  36
  37 /* dm register in the first register operand position.  */
  38 #define DM0      (DN1+1)
  39   {2, 0, MN10200_OPERAND_DREG},
  40
  41 /* dm register in the second register operand position.  */
  42 #define DM1      (DM0+1)
  43   {2, 2, MN10200_OPERAND_DREG},
  44
  45 /* an register in the first register operand position.  */
  46 #define AN0      (DM1+1)
  47   {2, 0, MN10200_OPERAND_AREG},
  48
  49 /* an register in the second register operand position.  */
  50 #define AN1      (AN0+1)
  51   {2, 2, MN10200_OPERAND_AREG},
  52
  53 /* am register in the first register operand position.  */
  54 #define AM0      (AN1+1)
  55   {2, 0, MN10200_OPERAND_AREG},
  56
  57 /* am register in the second register operand position.  */
  58 #define AM1      (AM0+1)
  59   {2, 2, MN10200_OPERAND_AREG},
  60
  61 /* 8 bit unsigned immediate which may promote to a 16bit
  62    unsigned immediate.  */
  63 #define IMM8    (AM1+1)
  64   {8, 0, MN10200_OPERAND_PROMOTE},
  65
  66 /* 16 bit unsigned immediate which may promote to a 32bit
  67    unsigned immediate.  */
  68 #define IMM16    (IMM8+1)
  69   {16, 0, MN10200_OPERAND_PROMOTE},
  70
  71 /* 16 bit pc-relative immediate which may promote to a 16bit
  72    pc-relative immediate.  */
  73 #define IMM16_PCREL    (IMM16+1)
  74   {16, 0, MN10200_OPERAND_PCREL | MN10200_OPERAND_RELAX | MN10200_OPERAND_SIGNED},
  75
  76 /* 16bit unsigned dispacement in a memory operation which
  77    may promote to a 32bit displacement.  */
  78 #define IMM16_MEM    (IMM16_PCREL+1)
  79   {16, 0, MN10200_OPERAND_PROMOTE | MN10200_OPERAND_MEMADDR},
  80
  81 /* 24 immediate, low 16 bits in the main instruction
  82    word, 8 in the extension word.  */
  83
  84 #define IMM24    (IMM16_MEM+1)
  85   {24, 0, MN10200_OPERAND_EXTENDED},
  86
  87 /* 32bit pc-relative offset.  */
  88 #define IMM24_PCREL    (IMM24+1)
  89   {24, 0, MN10200_OPERAND_EXTENDED | MN10200_OPERAND_PCREL | MN10200_OPERAND_SIGNED},
  90
  91 /* 32bit memory offset.  */
  92 #define IMM24_MEM    (IMM24_PCREL+1)
  93   {24, 0, MN10200_OPERAND_EXTENDED | MN10200_OPERAND_MEMADDR},
  94
  95 /* Processor status word.  */
  96 #define PSW    (IMM24_MEM+1)
  97   {0, 0, MN10200_OPERAND_PSW},
  98
  99 /* MDR register.  */
 100 #define MDR    (PSW+1)
 101   {0, 0, MN10200_OPERAND_MDR},
 102
 103 /* Index register.  */
 104 #define DI (MDR+1)
 105   {2, 4, MN10200_OPERAND_DREG},
 106
 107 /* 8 bit signed displacement, may promote to 16bit signed dispacement.  */
 108 #define SD8    (DI+1)
 109   {8, 0, MN10200_OPERAND_SIGNED | MN10200_OPERAND_PROMOTE},
 110
 111 /* 16 bit signed displacement, may promote to 32bit dispacement.  */
 112 #define SD16    (SD8+1)
 113   {16, 0, MN10200_OPERAND_SIGNED | MN10200_OPERAND_PROMOTE},
 114
 115 /* 8 bit pc-relative displacement.  */
 116 #define SD8N_PCREL    (SD16+1)
 117   {8, 0, MN10200_OPERAND_SIGNED | MN10200_OPERAND_PCREL | MN10200_OPERAND_RELAX},
 118
 119 /* 8 bit signed immediate which may promote to 16bit signed immediate.  */
 120 #define SIMM8    (SD8N_PCREL+1)
 121   {8, 0, MN10200_OPERAND_SIGNED | MN10200_OPERAND_PROMOTE},
 122
 123 /* 16 bit signed immediate which may promote to 32bit  immediate.  */
 124 #define SIMM16    (SIMM8+1)
 125   {16, 0, MN10200_OPERAND_SIGNED | MN10200_OPERAND_PROMOTE},
 126
 127 /* 16 bit signed immediate which may not promote.  */
 128 #define SIMM16N    (SIMM16+1)
 129   {16, 0, MN10200_OPERAND_SIGNED | MN10200_OPERAND_NOCHECK},
 130
 131 /* Either an open paren or close paren.  */
 132 #define PAREN   (SIMM16N+1)
 133   {0, 0, MN10200_OPERAND_PAREN},
 134
 135 /* dn register that appears in the first and second register positions.  */
 136 #define DN01     (PAREN+1)
 137   {2, 0, MN10200_OPERAND_DREG | MN10200_OPERAND_REPEATED},
 138
 139 /* an register that appears in the first and second register positions.  */
 140 #define AN01     (DN01+1)
 141   {2, 0, MN10200_OPERAND_AREG | MN10200_OPERAND_REPEATED},
 142 } ;
 143
 144 #define MEM(ADDR) PAREN, ADDR, PAREN
 145 #define MEM2(ADDR1,ADDR2) PAREN, ADDR1, ADDR2, PAREN
 146 \f
 147 /* The opcode table.
 148
 149    The format of the opcode table is:
 150
 151    NAME         OPCODE          MASK            { OPERANDS }
 152
 153    NAME is the name of the instruction.
 154    OPCODE is the instruction opcode.
 155    MASK is the opcode mask; this is used to tell the disassembler
 156      which bits in the actual opcode must match OPCODE.
 157    OPERANDS is the list of operands.
 158
 159    The disassembler reads the table in order and prints the first
 160    instruction which matches, so this table is sorted to put more
 161    specific instructions before more general instructions.  It is also
 162    sorted by major opcode.  */
 163
 164 const struct mn10200_opcode mn10200_opcodes[] = {
 165 { "mov",        0x8000,         0xf000,         FMT_2, {SIMM8, DN01}},
 166 { "mov",        0x80,           0xf0,           FMT_1, {DN1, DM0}},
 167 { "mov",        0xf230,         0xfff0,         FMT_4, {DM1, AN0}},
 168 { "mov",        0xf2f0,         0xfff0,         FMT_4, {AN1, DM0}},
 169 { "mov",        0xf270,         0xfff0,         FMT_4, {AN1, AM0}},
 170 { "mov",        0xf3f0,         0xfffc,         FMT_4, {PSW, DN0}},
 171 { "mov",        0xf3d0,         0xfff3,         FMT_4, {DN1, PSW}},
 172 { "mov",        0xf3e0,         0xfffc,         FMT_4, {MDR, DN0}},
 173 { "mov",        0xf3c0,         0xfff3,         FMT_4, {DN1, MDR}},
 174 { "mov",        0x20,           0xf0,           FMT_1, {MEM(AN1), DM0}},
 175 { "mov",        0x6000,         0xf000,         FMT_2, {MEM2(SD8, AN1), DM0}},
 176 { "mov",        0xf7c00000,     0xfff00000,     FMT_6, {MEM2(SD16, AN1), DM0}},
 177 { "mov",        0xf4800000,     0xfff00000,     FMT_7, {MEM2(IMM24,AN1), DM0}},
 178 { "mov",        0xf140,         0xffc0,         FMT_4, {MEM2(DI, AN1), DM0}},
 179 { "mov",        0xc80000,       0xfc0000,       FMT_3, {MEM(IMM16_MEM), DN0}},
 180 { "mov",        0xf4c00000,     0xfffc0000,     FMT_7, {MEM(IMM24_MEM), DN0}},
 181 { "mov",        0x7000,         0xf000,         FMT_2, {MEM2(SD8,AN1), AM0}},
 182 { "mov",        0x7000,         0xf000,         FMT_2, {MEM(AN1), AM0}},
 183 { "mov",        0xf7b00000,     0xfff00000,     FMT_6, {MEM2(SD16, AN1), AM0}},
 184 { "mov",        0xf4f00000,     0xfff00000,     FMT_7, {MEM2(IMM24,AN1), AM0}},
 185 { "mov",        0xf100,         0xffc0,         FMT_4, {MEM2(DI, AN1), AM0}},
 186 { "mov",        0xf7300000,     0xfffc0000,     FMT_6, {MEM(IMM16_MEM), AN0}},
 187 { "mov",        0xf4d00000,     0xfffc0000,     FMT_7, {MEM(IMM24_MEM), AN0}},
 188 { "mov",        0x00,           0xf0,           FMT_1, {DM0, MEM(AN1)}},
 189 { "mov",        0x4000,         0xf000,         FMT_2, {DM0, MEM2(SD8, AN1)}},
 190 { "mov",        0xf7800000,     0xfff00000,     FMT_6, {DM0, MEM2(SD16, AN1)}},
 191 { "mov",        0xf4000000,     0xfff00000,     FMT_7, {DM0, MEM2(IMM24, AN1)}},
 192 { "mov",        0xf1c0,         0xffc0,         FMT_4, {DM0, MEM2(DI, AN1)}},
 193 { "mov",        0xc00000,       0xfc0000,       FMT_3, {DN0, MEM(IMM16_MEM)}},
 194 { "mov",        0xf4400000,     0xfffc0000,     FMT_7, {DN0, MEM(IMM24_MEM)}},
 195 { "mov",        0x5000,         0xf000,         FMT_2, {AM0, MEM2(SD8, AN1)}},
 196 { "mov",        0x5000,         0xf000,         FMT_2, {AM0, MEM(AN1)}},
 197 { "mov",        0xf7a00000,     0xfff00000,     FMT_6, {AM0, MEM2(SD16, AN1)}},
 198 { "mov",        0xf4100000,     0xfff00000,     FMT_7, {AM0, MEM2(IMM24,AN1)}},
 199 { "mov",        0xf180,         0xffc0,         FMT_4, {AM0, MEM2(DI, AN1)}},
 200 { "mov",        0xf7200000,     0xfffc0000,     FMT_6, {AN0, MEM(IMM16_MEM)}},
 201 { "mov",        0xf4500000,     0xfffc0000,     FMT_7, {AN0, MEM(IMM24_MEM)}},
 202 { "mov",        0xf80000,       0xfc0000,       FMT_3, {SIMM16, DN0}},
 203 { "mov",        0xf4700000,     0xfffc0000,     FMT_7, {IMM24, DN0}},
 204 { "mov",        0xdc0000,       0xfc0000,       FMT_3, {IMM16, AN0}},
 205 { "mov",        0xf4740000,     0xfffc0000,     FMT_7, {IMM24, AN0}},
 206
 207 { "movx",       0xf57000,       0xfff000,       FMT_5, {MEM2(SD8, AN1), DM0}},
 208 { "movx",       0xf7700000,     0xfff00000,     FMT_6, {MEM2(SD16, AN1), DM0}},
 209 { "movx",       0xf4b00000,     0xfff00000,     FMT_7, {MEM2(IMM24,AN1), DM0}},
 210 { "movx",       0xf55000,       0xfff000,       FMT_5, {DM0, MEM2(SD8, AN1)}},
 211 { "movx",       0xf7600000,     0xfff00000,     FMT_6, {DM0, MEM2(SD16, AN1)}},
 212 { "movx",       0xf4300000,     0xfff00000,     FMT_7, {DM0, MEM2(IMM24, AN1)}},
 213
 214 { "movb",       0xf52000,       0xfff000,       FMT_5, {MEM2(SD8, AN1), DM0}},
 215 { "movb",       0xf7d00000,     0xfff00000,     FMT_6, {MEM2(SD16, AN1), DM0}},
 216 { "movb",       0xf4a00000,     0xfff00000,     FMT_7, {MEM2(IMM24,AN1), DM0}},
 217 { "movb",       0xf040,         0xffc0,         FMT_4, {MEM2(DI, AN1), DM0}},
 218 { "movb",       0xf4c40000,     0xfffc0000,     FMT_7, {MEM(IMM24_MEM), DN0}},
 219 { "movb",       0x10,           0xf0,           FMT_1, {DM0, MEM(AN1)}},
 220 { "movb",       0xf51000,       0xfff000,       FMT_5, {DM0, MEM2(SD8, AN1)}},
 221 { "movb",       0xf7900000,     0xfff00000,     FMT_6, {DM0, MEM2(SD16, AN1)}},
 222 { "movb",       0xf4200000,     0xfff00000,     FMT_7, {DM0, MEM2(IMM24, AN1)}},
 223 { "movb",       0xf0c0,         0xffc0,         FMT_4, {DM0, MEM2(DI, AN1)}},
 224 { "movb",       0xc40000,       0xfc0000,       FMT_3, {DN0, MEM(IMM16_MEM)}},
 225 { "movb",       0xf4440000,     0xfffc0000,     FMT_7, {DN0, MEM(IMM24_MEM)}},
 226
 227 { "movbu",      0x30,           0xf0,           FMT_1, {MEM(AN1), DM0}},
 228 { "movbu",      0xf53000,       0xfff000,       FMT_5, {MEM2(SD8, AN1), DM0}},
 229 { "movbu",      0xf7500000,     0xfff00000,     FMT_6, {MEM2(SD16, AN1), DM0}},
 230 { "movbu",      0xf4900000,     0xfff00000,     FMT_7, {MEM2(IMM24,AN1), DM0}},
 231 { "movbu",      0xf080,         0xffc0,         FMT_4, {MEM2(DI, AN1), DM0}},
 232 { "movbu",      0xcc0000,       0xfc0000,       FMT_3, {MEM(IMM16_MEM), DN0}},
 233 { "movbu",      0xf4c80000,     0xfffc0000,     FMT_7, {MEM(IMM24_MEM), DN0}},
 234
 235 { "ext",        0xf3c1,         0xfff3,         FMT_4, {DN1}},
 236 { "extx",       0xb0,           0xfc,           FMT_1, {DN0}},
 237 { "extxu",      0xb4,           0xfc,           FMT_1, {DN0}},
 238 { "extxb",      0xb8,           0xfc,           FMT_1, {DN0}},
 239 { "extxbu",     0xbc,           0xfc,           FMT_1, {DN0}},
 240
 241 { "add",        0x90,           0xf0,           FMT_1, {DN1, DM0}},
 242 { "add",        0xf200,         0xfff0,         FMT_4, {DM1, AN0}},
 243 { "add",        0xf2c0,         0xfff0,         FMT_4, {AN1, DM0}},
 244 { "add",        0xf240,         0xfff0,         FMT_4, {AN1, AM0}},
 245 { "add",        0xd400,         0xfc00,         FMT_2, {SIMM8, DN0}},
 246 { "add",        0xf7180000,     0xfffc0000,     FMT_6, {SIMM16, DN0}},
 247 { "add",        0xf4600000,     0xfffc0000,     FMT_7, {IMM24, DN0}},
 248 { "add",        0xd000,         0xfc00,         FMT_2, {SIMM8, AN0}},
 249 { "add",        0xf7080000,     0xfffc0000,     FMT_6, {SIMM16, AN0}},
 250 { "add",        0xf4640000,     0xfffc0000,     FMT_7, {IMM24, AN0}},
 251 { "addc",       0xf280,         0xfff0,         FMT_4, {DN1, DM0}},
 252 { "addnf",      0xf50c00,       0xfffc00,       FMT_5, {SIMM8, AN0}},
 253
 254 { "sub",        0xa0,           0xf0,           FMT_1, {DN1, DM0}},
 255 { "sub",        0xf210,         0xfff0,         FMT_4, {DN1, AN0}},
 256 { "sub",        0xf2d0,         0xfff0,         FMT_4, {AN1, DM0}},
 257 { "sub",        0xf250,         0xfff0,         FMT_4, {AN1, AM0}},
 258 { "sub",        0xf71c0000,     0xfffc0000,     FMT_6, {IMM16, DN0}},
 259 { "sub",        0xf4680000,     0xfffc0000,     FMT_7, {IMM24, DN0}},
 260 { "sub",        0xf70c0000,     0xfffc0000,     FMT_6, {IMM16, AN0}},
 261 { "sub",        0xf46c0000,     0xfffc0000,     FMT_7, {IMM24, AN0}},
 262 { "subc",       0xf290,         0xfff0,         FMT_4, {DN1, DM0}},
 263
 264 { "mul",        0xf340,         0xfff0,         FMT_4, {DN1, DM0}},
 265 { "mulu",       0xf350,         0xfff0,         FMT_4, {DN1, DM0}},
 266
 267 { "divu",       0xf360,         0xfff0,         FMT_4, {DN1, DM0}},
 268
 269 { "cmp",        0xf390,         0xfff0,         FMT_4, {DN1, DM0}},
 270 { "cmp",        0xf220,         0xfff0,         FMT_4, {DM1, AN0}},
 271 { "cmp",        0xf2e0,         0xfff0,         FMT_4, {AN1, DM0}},
 272 { "cmp",        0xf260,         0xfff0,         FMT_4, {AN1, AM0}},
 273 { "cmp",        0xd800,         0xfc00,         FMT_2, {SIMM8, DN0}},
 274 { "cmp",        0xf7480000,     0xfffc0000,     FMT_6, {SIMM16, DN0}},
 275 { "cmp",        0xf4780000,     0xfffc0000,     FMT_7, {IMM24, DN0}},
 276 { "cmp",        0xec0000,       0xfc0000,       FMT_3, {IMM16, AN0}},
 277 { "cmp",        0xf47c0000,     0xfffc0000,     FMT_7, {IMM24, AN0}},
 278
 279 { "and",        0xf300,         0xfff0,         FMT_4, {DN1, DM0}},
 280 { "and",        0xf50000,       0xfffc00,       FMT_5, {IMM8, DN0}},
 281 { "and",        0xf7000000,     0xfffc0000,     FMT_6, {SIMM16N, DN0}},
 282 { "and",        0xf7100000,     0xffff0000,     FMT_6, {SIMM16N, PSW}},
 283 { "or",         0xf310,         0xfff0,         FMT_4, {DN1, DM0}},
 284 { "or",         0xf50800,       0xfffc00,       FMT_5, {IMM8, DN0}},
 285 { "or",         0xf7400000,     0xfffc0000,     FMT_6, {SIMM16N, DN0}},
 286 { "or",         0xf7140000,     0xffff0000,     FMT_6, {SIMM16N, PSW}},
 287 { "xor",        0xf320,         0xfff0,         FMT_4, {DN1, DM0}},
 288 { "xor",        0xf74c0000,     0xfffc0000,     FMT_6, {SIMM16N, DN0}},
 289 { "not",        0xf3e4,         0xfffc,         FMT_4, {DN0}},
 290
 291 { "asr",        0xf338,         0xfffc,         FMT_4, {DN0}},
 292 { "lsr",        0xf33c,         0xfffc,         FMT_4, {DN0}},
 293 { "ror",        0xf334,         0xfffc,         FMT_4, {DN0}},
 294 { "rol",        0xf330,         0xfffc,         FMT_4, {DN0}},
 295
 296 { "btst",       0xf50400,       0xfffc00,       FMT_5, {IMM8, DN0}},
 297 { "btst",       0xf7040000,     0xfffc0000,     FMT_6, {SIMM16N, DN0}},
 298 { "bset",       0xf020,         0xfff0,         FMT_4, {DM0, MEM(AN1)}},
 299 { "bclr",       0xf030,         0xfff0,         FMT_4, {DM0, MEM(AN1)}},
 300
 301 { "beq",        0xe800,         0xff00,         FMT_2, {SD8N_PCREL}},
 302 { "bne",        0xe900,         0xff00,         FMT_2, {SD8N_PCREL}},
 303 { "blt",        0xe000,         0xff00,         FMT_2, {SD8N_PCREL}},
 304 { "ble",        0xe300,         0xff00,         FMT_2, {SD8N_PCREL}},
 305 { "bge",        0xe200,         0xff00,         FMT_2, {SD8N_PCREL}},
 306 { "bgt",        0xe100,         0xff00,         FMT_2, {SD8N_PCREL}},
 307 { "bcs",        0xe400,         0xff00,         FMT_2, {SD8N_PCREL}},
 308 { "bls",        0xe700,         0xff00,         FMT_2, {SD8N_PCREL}},
 309 { "bcc",        0xe600,         0xff00,         FMT_2, {SD8N_PCREL}},
 310 { "bhi",        0xe500,         0xff00,         FMT_2, {SD8N_PCREL}},
 311 { "bvc",        0xf5fc00,       0xffff00,       FMT_5, {SD8N_PCREL}},
 312 { "bvs",        0xf5fd00,       0xffff00,       FMT_5, {SD8N_PCREL}},
 313 { "bnc",        0xf5fe00,       0xffff00,       FMT_5, {SD8N_PCREL}},
 314 { "bns",        0xf5ff00,       0xffff00,       FMT_5, {SD8N_PCREL}},
 315 { "bra",        0xea00,         0xff00,         FMT_2, {SD8N_PCREL}},
 316
 317 { "beqx",       0xf5e800,       0xffff00,       FMT_5, {SD8N_PCREL}},
 318 { "bnex",       0xf5e900,       0xffff00,       FMT_5, {SD8N_PCREL}},
 319 { "bltx",       0xf5e000,       0xffff00,       FMT_5, {SD8N_PCREL}},
 320 { "blex",       0xf5e300,       0xffff00,       FMT_5, {SD8N_PCREL}},
 321 { "bgex",       0xf5e200,       0xffff00,       FMT_5, {SD8N_PCREL}},
 322 { "bgtx",       0xf5e100,       0xffff00,       FMT_5, {SD8N_PCREL}},
 323 { "bcsx",       0xf5e400,       0xffff00,       FMT_5, {SD8N_PCREL}},
 324 { "blsx",       0xf5e700,       0xffff00,       FMT_5, {SD8N_PCREL}},
 325 { "bccx",       0xf5e600,       0xffff00,       FMT_5, {SD8N_PCREL}},
 326 { "bhix",       0xf5e500,       0xffff00,       FMT_5, {SD8N_PCREL}},
 327 { "bvcx",       0xf5ec00,       0xffff00,       FMT_5, {SD8N_PCREL}},
 328 { "bvsx",       0xf5ed00,       0xffff00,       FMT_5, {SD8N_PCREL}},
 329 { "bncx",       0xf5ee00,       0xffff00,       FMT_5, {SD8N_PCREL}},
 330 { "bnsx",       0xf5ef00,       0xffff00,       FMT_5, {SD8N_PCREL}},
 331
 332 { "jmp",        0xfc0000,       0xff0000,       FMT_3, {IMM16_PCREL}},
 333 { "jmp",        0xf4e00000,     0xffff0000,     FMT_7, {IMM24_PCREL}},
 334 { "jmp",        0xf000,         0xfff3,         FMT_4, {PAREN,AN1,PAREN}},
 335 { "jsr",        0xfd0000,       0xff0000,       FMT_3, {IMM16_PCREL}},
 336 { "jsr",        0xf4e10000,     0xffff0000,     FMT_7, {IMM24_PCREL}},
 337 { "jsr",        0xf001,         0xfff3,         FMT_4, {PAREN,AN1,PAREN}},
 338
 339 { "nop",        0xf6,           0xff,           FMT_1, {UNUSED}},
 340
 341 { "rts",        0xfe,           0xff,           FMT_1, {UNUSED}},
 342 { "rti",        0xeb,           0xff,           FMT_1, {UNUSED}},
 343
 344 /* Extension.  We need some instruction to trigger "emulated syscalls"
 345    for our simulator.  */
 346 { "syscall",    0xf010,         0xffff,         FMT_4, {UNUSED}},
 347
 348 /* Extension.  When talking to the simulator, gdb requires some instruction
 349    that will trigger a "breakpoint" (really just an instruction that isn't
 350    otherwise used by the tools.  This instruction must be the same size
 351    as the smallest instruction on the target machine.  In the case of the
 352    mn10x00 the "break" instruction must be one byte.  0xff is available on
 353    both mn10x00 architectures.  */
 354 { "break",      0xff,           0xff,           FMT_1, {UNUSED}},
 355
 356 { 0, 0, 0, 0, {0}},
 357
 358 } ;
 359
 360 const int mn10200_num_opcodes =
 361   sizeof (mn10200_opcodes) / sizeof (mn10200_opcodes[0]);
 362
 363 \f