bellard | dc99065 | 2003-03-19 00:00:28 +0000 | [diff] [blame] | 1 | /* Print i386 instructions for GDB, the GNU debugger. |
| 2 | Copyright (C) 1988, 89, 91, 93, 94, 95, 96, 97, 1998 |
| 3 | Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program; if not, write to the Free Software |
| 19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ |
| 20 | |
| 21 | /* |
| 22 | * 80386 instruction printer by Pace Willisson (pace@prep.ai.mit.edu) |
| 23 | * July 1988 |
| 24 | * modified by John Hassey (hassey@dg-rtp.dg.com) |
| 25 | */ |
| 26 | |
| 27 | /* |
| 28 | * The main tables describing the instructions is essentially a copy |
| 29 | * of the "Opcode Map" chapter (Appendix A) of the Intel 80386 |
| 30 | * Programmers Manual. Usually, there is a capital letter, followed |
| 31 | * by a small letter. The capital letter tell the addressing mode, |
| 32 | * and the small letter tells about the operand size. Refer to |
| 33 | * the Intel manual for details. |
| 34 | */ |
| 35 | |
bellard | bb0ebb1 | 2003-04-10 00:02:33 +0000 | [diff] [blame] | 36 | #include <stdlib.h> |
| 37 | #include <setjmp.h> |
| 38 | |
bellard | dc99065 | 2003-03-19 00:00:28 +0000 | [diff] [blame] | 39 | #include "dis-asm.h" |
| 40 | |
| 41 | #define MAXLEN 20 |
| 42 | |
bellard | dc99065 | 2003-03-19 00:00:28 +0000 | [diff] [blame] | 43 | static int fetch_data PARAMS ((struct disassemble_info *, bfd_byte *)); |
| 44 | |
| 45 | struct dis_private |
| 46 | { |
| 47 | /* Points to first byte not fetched. */ |
| 48 | bfd_byte *max_fetched; |
| 49 | bfd_byte the_buffer[MAXLEN]; |
| 50 | bfd_vma insn_start; |
| 51 | jmp_buf bailout; |
| 52 | }; |
| 53 | |
| 54 | /* Make sure that bytes from INFO->PRIVATE_DATA->BUFFER (inclusive) |
| 55 | to ADDR (exclusive) are valid. Returns 1 for success, longjmps |
| 56 | on error. */ |
| 57 | #define FETCH_DATA(info, addr) \ |
| 58 | ((addr) <= ((struct dis_private *)(info->private_data))->max_fetched \ |
| 59 | ? 1 : fetch_data ((info), (addr))) |
| 60 | |
| 61 | static int |
| 62 | fetch_data (info, addr) |
| 63 | struct disassemble_info *info; |
| 64 | bfd_byte *addr; |
| 65 | { |
| 66 | int status; |
| 67 | struct dis_private *priv = (struct dis_private *)info->private_data; |
| 68 | bfd_vma start = priv->insn_start + (priv->max_fetched - priv->the_buffer); |
| 69 | |
| 70 | status = (*info->read_memory_func) (start, |
| 71 | priv->max_fetched, |
| 72 | addr - priv->max_fetched, |
| 73 | info); |
| 74 | if (status != 0) |
| 75 | { |
| 76 | (*info->memory_error_func) (status, start, info); |
| 77 | longjmp (priv->bailout, 1); |
| 78 | } |
| 79 | else |
| 80 | priv->max_fetched = addr; |
| 81 | return 1; |
| 82 | } |
| 83 | |
| 84 | #define Eb OP_E, b_mode |
| 85 | #define indirEb OP_indirE, b_mode |
| 86 | #define Gb OP_G, b_mode |
| 87 | #define Ev OP_E, v_mode |
| 88 | #define indirEv OP_indirE, v_mode |
| 89 | #define Ew OP_E, w_mode |
| 90 | #define Ma OP_E, v_mode |
| 91 | #define M OP_E, 0 |
| 92 | #define Mp OP_E, 0 /* ? */ |
| 93 | #define Gv OP_G, v_mode |
| 94 | #define Gw OP_G, w_mode |
| 95 | #define Rw OP_rm, w_mode |
| 96 | #define Rd OP_rm, d_mode |
| 97 | #define Ib OP_I, b_mode |
| 98 | #define sIb OP_sI, b_mode /* sign extened byte */ |
| 99 | #define Iv OP_I, v_mode |
| 100 | #define Iw OP_I, w_mode |
| 101 | #define Jb OP_J, b_mode |
| 102 | #define Jv OP_J, v_mode |
| 103 | #if 0 |
| 104 | #define ONE OP_ONE, 0 |
| 105 | #endif |
| 106 | #define Cd OP_C, d_mode |
| 107 | #define Dd OP_D, d_mode |
| 108 | #define Td OP_T, d_mode |
| 109 | |
| 110 | #define eAX OP_REG, eAX_reg |
| 111 | #define eBX OP_REG, eBX_reg |
| 112 | #define eCX OP_REG, eCX_reg |
| 113 | #define eDX OP_REG, eDX_reg |
| 114 | #define eSP OP_REG, eSP_reg |
| 115 | #define eBP OP_REG, eBP_reg |
| 116 | #define eSI OP_REG, eSI_reg |
| 117 | #define eDI OP_REG, eDI_reg |
| 118 | #define AL OP_REG, al_reg |
| 119 | #define CL OP_REG, cl_reg |
| 120 | #define DL OP_REG, dl_reg |
| 121 | #define BL OP_REG, bl_reg |
| 122 | #define AH OP_REG, ah_reg |
| 123 | #define CH OP_REG, ch_reg |
| 124 | #define DH OP_REG, dh_reg |
| 125 | #define BH OP_REG, bh_reg |
| 126 | #define AX OP_REG, ax_reg |
| 127 | #define DX OP_REG, dx_reg |
| 128 | #define indirDX OP_REG, indir_dx_reg |
| 129 | |
| 130 | #define Sw OP_SEG, w_mode |
| 131 | #define Ap OP_DIR, lptr |
| 132 | #define Av OP_DIR, v_mode |
| 133 | #define Ob OP_OFF, b_mode |
| 134 | #define Ov OP_OFF, v_mode |
| 135 | #define Xb OP_DSSI, b_mode |
| 136 | #define Xv OP_DSSI, v_mode |
| 137 | #define Yb OP_ESDI, b_mode |
| 138 | #define Yv OP_ESDI, v_mode |
| 139 | |
| 140 | #define es OP_REG, es_reg |
| 141 | #define ss OP_REG, ss_reg |
| 142 | #define cs OP_REG, cs_reg |
| 143 | #define ds OP_REG, ds_reg |
| 144 | #define fs OP_REG, fs_reg |
| 145 | #define gs OP_REG, gs_reg |
| 146 | |
| 147 | #define MX OP_MMX, 0 |
| 148 | #define EM OP_EM, v_mode |
| 149 | #define MS OP_MS, b_mode |
| 150 | |
| 151 | typedef int (*op_rtn) PARAMS ((int bytemode, int aflag, int dflag)); |
| 152 | |
| 153 | static int OP_E PARAMS ((int, int, int)); |
| 154 | static int OP_G PARAMS ((int, int, int)); |
| 155 | static int OP_I PARAMS ((int, int, int)); |
| 156 | static int OP_indirE PARAMS ((int, int, int)); |
| 157 | static int OP_sI PARAMS ((int, int, int)); |
| 158 | static int OP_REG PARAMS ((int, int, int)); |
| 159 | static int OP_J PARAMS ((int, int, int)); |
| 160 | static int OP_DIR PARAMS ((int, int, int)); |
| 161 | static int OP_OFF PARAMS ((int, int, int)); |
| 162 | static int OP_ESDI PARAMS ((int, int, int)); |
| 163 | static int OP_DSSI PARAMS ((int, int, int)); |
| 164 | static int OP_SEG PARAMS ((int, int, int)); |
| 165 | static int OP_C PARAMS ((int, int, int)); |
| 166 | static int OP_D PARAMS ((int, int, int)); |
| 167 | static int OP_T PARAMS ((int, int, int)); |
| 168 | static int OP_rm PARAMS ((int, int, int)); |
| 169 | static int OP_ST PARAMS ((int, int, int)); |
| 170 | static int OP_STi PARAMS ((int, int, int)); |
| 171 | #if 0 |
| 172 | static int OP_ONE PARAMS ((int, int, int)); |
| 173 | #endif |
| 174 | static int OP_MMX PARAMS ((int, int, int)); |
| 175 | static int OP_EM PARAMS ((int, int, int)); |
| 176 | static int OP_MS PARAMS ((int, int, int)); |
| 177 | |
| 178 | static void append_prefix PARAMS ((void)); |
| 179 | static void set_op PARAMS ((int op)); |
| 180 | static void putop PARAMS ((char *template, int aflag, int dflag)); |
| 181 | static void dofloat PARAMS ((int aflag, int dflag)); |
| 182 | static int get16 PARAMS ((void)); |
| 183 | static int get32 PARAMS ((void)); |
| 184 | static void ckprefix PARAMS ((void)); |
| 185 | |
| 186 | #define b_mode 1 |
| 187 | #define v_mode 2 |
| 188 | #define w_mode 3 |
| 189 | #define d_mode 4 |
| 190 | |
| 191 | #define es_reg 100 |
| 192 | #define cs_reg 101 |
| 193 | #define ss_reg 102 |
| 194 | #define ds_reg 103 |
| 195 | #define fs_reg 104 |
| 196 | #define gs_reg 105 |
| 197 | #define eAX_reg 107 |
| 198 | #define eCX_reg 108 |
| 199 | #define eDX_reg 109 |
| 200 | #define eBX_reg 110 |
| 201 | #define eSP_reg 111 |
| 202 | #define eBP_reg 112 |
| 203 | #define eSI_reg 113 |
| 204 | #define eDI_reg 114 |
| 205 | |
| 206 | #define lptr 115 |
| 207 | |
| 208 | #define al_reg 116 |
| 209 | #define cl_reg 117 |
| 210 | #define dl_reg 118 |
| 211 | #define bl_reg 119 |
| 212 | #define ah_reg 120 |
| 213 | #define ch_reg 121 |
| 214 | #define dh_reg 122 |
| 215 | #define bh_reg 123 |
| 216 | |
| 217 | #define ax_reg 124 |
| 218 | #define cx_reg 125 |
| 219 | #define dx_reg 126 |
| 220 | #define bx_reg 127 |
| 221 | #define sp_reg 128 |
| 222 | #define bp_reg 129 |
| 223 | #define si_reg 130 |
| 224 | #define di_reg 131 |
| 225 | |
| 226 | #define indir_dx_reg 150 |
| 227 | |
| 228 | #define GRP1b NULL, NULL, 0 |
| 229 | #define GRP1S NULL, NULL, 1 |
| 230 | #define GRP1Ss NULL, NULL, 2 |
| 231 | #define GRP2b NULL, NULL, 3 |
| 232 | #define GRP2S NULL, NULL, 4 |
| 233 | #define GRP2b_one NULL, NULL, 5 |
| 234 | #define GRP2S_one NULL, NULL, 6 |
| 235 | #define GRP2b_cl NULL, NULL, 7 |
| 236 | #define GRP2S_cl NULL, NULL, 8 |
| 237 | #define GRP3b NULL, NULL, 9 |
| 238 | #define GRP3S NULL, NULL, 10 |
| 239 | #define GRP4 NULL, NULL, 11 |
| 240 | #define GRP5 NULL, NULL, 12 |
| 241 | #define GRP6 NULL, NULL, 13 |
| 242 | #define GRP7 NULL, NULL, 14 |
| 243 | #define GRP8 NULL, NULL, 15 |
| 244 | #define GRP9 NULL, NULL, 16 |
| 245 | #define GRP10 NULL, NULL, 17 |
| 246 | #define GRP11 NULL, NULL, 18 |
| 247 | #define GRP12 NULL, NULL, 19 |
| 248 | |
| 249 | #define FLOATCODE 50 |
| 250 | #define FLOAT NULL, NULL, FLOATCODE |
| 251 | |
| 252 | struct dis386 { |
| 253 | char *name; |
| 254 | op_rtn op1; |
| 255 | int bytemode1; |
| 256 | op_rtn op2; |
| 257 | int bytemode2; |
| 258 | op_rtn op3; |
| 259 | int bytemode3; |
| 260 | }; |
| 261 | |
| 262 | static struct dis386 dis386[] = { |
| 263 | /* 00 */ |
| 264 | { "addb", Eb, Gb }, |
| 265 | { "addS", Ev, Gv }, |
| 266 | { "addb", Gb, Eb }, |
| 267 | { "addS", Gv, Ev }, |
| 268 | { "addb", AL, Ib }, |
| 269 | { "addS", eAX, Iv }, |
| 270 | { "pushS", es }, |
| 271 | { "popS", es }, |
| 272 | /* 08 */ |
| 273 | { "orb", Eb, Gb }, |
| 274 | { "orS", Ev, Gv }, |
| 275 | { "orb", Gb, Eb }, |
| 276 | { "orS", Gv, Ev }, |
| 277 | { "orb", AL, Ib }, |
| 278 | { "orS", eAX, Iv }, |
| 279 | { "pushS", cs }, |
| 280 | { "(bad)" }, /* 0x0f extended opcode escape */ |
| 281 | /* 10 */ |
| 282 | { "adcb", Eb, Gb }, |
| 283 | { "adcS", Ev, Gv }, |
| 284 | { "adcb", Gb, Eb }, |
| 285 | { "adcS", Gv, Ev }, |
| 286 | { "adcb", AL, Ib }, |
| 287 | { "adcS", eAX, Iv }, |
| 288 | { "pushS", ss }, |
| 289 | { "popS", ss }, |
| 290 | /* 18 */ |
| 291 | { "sbbb", Eb, Gb }, |
| 292 | { "sbbS", Ev, Gv }, |
| 293 | { "sbbb", Gb, Eb }, |
| 294 | { "sbbS", Gv, Ev }, |
| 295 | { "sbbb", AL, Ib }, |
| 296 | { "sbbS", eAX, Iv }, |
| 297 | { "pushS", ds }, |
| 298 | { "popS", ds }, |
| 299 | /* 20 */ |
| 300 | { "andb", Eb, Gb }, |
| 301 | { "andS", Ev, Gv }, |
| 302 | { "andb", Gb, Eb }, |
| 303 | { "andS", Gv, Ev }, |
| 304 | { "andb", AL, Ib }, |
| 305 | { "andS", eAX, Iv }, |
| 306 | { "(bad)" }, /* SEG ES prefix */ |
| 307 | { "daa" }, |
| 308 | /* 28 */ |
| 309 | { "subb", Eb, Gb }, |
| 310 | { "subS", Ev, Gv }, |
| 311 | { "subb", Gb, Eb }, |
| 312 | { "subS", Gv, Ev }, |
| 313 | { "subb", AL, Ib }, |
| 314 | { "subS", eAX, Iv }, |
| 315 | { "(bad)" }, /* SEG CS prefix */ |
| 316 | { "das" }, |
| 317 | /* 30 */ |
| 318 | { "xorb", Eb, Gb }, |
| 319 | { "xorS", Ev, Gv }, |
| 320 | { "xorb", Gb, Eb }, |
| 321 | { "xorS", Gv, Ev }, |
| 322 | { "xorb", AL, Ib }, |
| 323 | { "xorS", eAX, Iv }, |
| 324 | { "(bad)" }, /* SEG SS prefix */ |
| 325 | { "aaa" }, |
| 326 | /* 38 */ |
| 327 | { "cmpb", Eb, Gb }, |
| 328 | { "cmpS", Ev, Gv }, |
| 329 | { "cmpb", Gb, Eb }, |
| 330 | { "cmpS", Gv, Ev }, |
| 331 | { "cmpb", AL, Ib }, |
| 332 | { "cmpS", eAX, Iv }, |
| 333 | { "(bad)" }, /* SEG DS prefix */ |
| 334 | { "aas" }, |
| 335 | /* 40 */ |
| 336 | { "incS", eAX }, |
| 337 | { "incS", eCX }, |
| 338 | { "incS", eDX }, |
| 339 | { "incS", eBX }, |
| 340 | { "incS", eSP }, |
| 341 | { "incS", eBP }, |
| 342 | { "incS", eSI }, |
| 343 | { "incS", eDI }, |
| 344 | /* 48 */ |
| 345 | { "decS", eAX }, |
| 346 | { "decS", eCX }, |
| 347 | { "decS", eDX }, |
| 348 | { "decS", eBX }, |
| 349 | { "decS", eSP }, |
| 350 | { "decS", eBP }, |
| 351 | { "decS", eSI }, |
| 352 | { "decS", eDI }, |
| 353 | /* 50 */ |
| 354 | { "pushS", eAX }, |
| 355 | { "pushS", eCX }, |
| 356 | { "pushS", eDX }, |
| 357 | { "pushS", eBX }, |
| 358 | { "pushS", eSP }, |
| 359 | { "pushS", eBP }, |
| 360 | { "pushS", eSI }, |
| 361 | { "pushS", eDI }, |
| 362 | /* 58 */ |
| 363 | { "popS", eAX }, |
| 364 | { "popS", eCX }, |
| 365 | { "popS", eDX }, |
| 366 | { "popS", eBX }, |
| 367 | { "popS", eSP }, |
| 368 | { "popS", eBP }, |
| 369 | { "popS", eSI }, |
| 370 | { "popS", eDI }, |
| 371 | /* 60 */ |
| 372 | { "pusha" }, |
| 373 | { "popa" }, |
| 374 | { "boundS", Gv, Ma }, |
| 375 | { "arpl", Ew, Gw }, |
| 376 | { "(bad)" }, /* seg fs */ |
| 377 | { "(bad)" }, /* seg gs */ |
| 378 | { "(bad)" }, /* op size prefix */ |
| 379 | { "(bad)" }, /* adr size prefix */ |
| 380 | /* 68 */ |
| 381 | { "pushS", Iv }, /* 386 book wrong */ |
| 382 | { "imulS", Gv, Ev, Iv }, |
| 383 | { "pushS", sIb }, /* push of byte really pushes 2 or 4 bytes */ |
| 384 | { "imulS", Gv, Ev, Ib }, |
| 385 | { "insb", Yb, indirDX }, |
| 386 | { "insS", Yv, indirDX }, |
| 387 | { "outsb", indirDX, Xb }, |
| 388 | { "outsS", indirDX, Xv }, |
| 389 | /* 70 */ |
| 390 | { "jo", Jb }, |
| 391 | { "jno", Jb }, |
| 392 | { "jb", Jb }, |
| 393 | { "jae", Jb }, |
| 394 | { "je", Jb }, |
| 395 | { "jne", Jb }, |
| 396 | { "jbe", Jb }, |
| 397 | { "ja", Jb }, |
| 398 | /* 78 */ |
| 399 | { "js", Jb }, |
| 400 | { "jns", Jb }, |
| 401 | { "jp", Jb }, |
| 402 | { "jnp", Jb }, |
| 403 | { "jl", Jb }, |
| 404 | { "jnl", Jb }, |
| 405 | { "jle", Jb }, |
| 406 | { "jg", Jb }, |
| 407 | /* 80 */ |
| 408 | { GRP1b }, |
| 409 | { GRP1S }, |
| 410 | { "(bad)" }, |
| 411 | { GRP1Ss }, |
| 412 | { "testb", Eb, Gb }, |
| 413 | { "testS", Ev, Gv }, |
| 414 | { "xchgb", Eb, Gb }, |
| 415 | { "xchgS", Ev, Gv }, |
| 416 | /* 88 */ |
| 417 | { "movb", Eb, Gb }, |
| 418 | { "movS", Ev, Gv }, |
| 419 | { "movb", Gb, Eb }, |
| 420 | { "movS", Gv, Ev }, |
| 421 | { "movS", Ev, Sw }, |
| 422 | { "leaS", Gv, M }, |
| 423 | { "movS", Sw, Ev }, |
| 424 | { "popS", Ev }, |
| 425 | /* 90 */ |
| 426 | { "nop" }, |
| 427 | { "xchgS", eCX, eAX }, |
| 428 | { "xchgS", eDX, eAX }, |
| 429 | { "xchgS", eBX, eAX }, |
| 430 | { "xchgS", eSP, eAX }, |
| 431 | { "xchgS", eBP, eAX }, |
| 432 | { "xchgS", eSI, eAX }, |
| 433 | { "xchgS", eDI, eAX }, |
| 434 | /* 98 */ |
| 435 | { "cWtS" }, |
| 436 | { "cStd" }, |
| 437 | { "lcall", Ap }, |
| 438 | { "(bad)" }, /* fwait */ |
| 439 | { "pushf" }, |
| 440 | { "popf" }, |
| 441 | { "sahf" }, |
| 442 | { "lahf" }, |
| 443 | /* a0 */ |
| 444 | { "movb", AL, Ob }, |
| 445 | { "movS", eAX, Ov }, |
| 446 | { "movb", Ob, AL }, |
| 447 | { "movS", Ov, eAX }, |
| 448 | { "movsb", Yb, Xb }, |
| 449 | { "movsS", Yv, Xv }, |
| 450 | { "cmpsb", Yb, Xb }, |
| 451 | { "cmpsS", Yv, Xv }, |
| 452 | /* a8 */ |
| 453 | { "testb", AL, Ib }, |
| 454 | { "testS", eAX, Iv }, |
| 455 | { "stosb", Yb, AL }, |
| 456 | { "stosS", Yv, eAX }, |
| 457 | { "lodsb", AL, Xb }, |
| 458 | { "lodsS", eAX, Xv }, |
| 459 | { "scasb", AL, Yb }, |
| 460 | { "scasS", eAX, Yv }, |
| 461 | /* b0 */ |
| 462 | { "movb", AL, Ib }, |
| 463 | { "movb", CL, Ib }, |
| 464 | { "movb", DL, Ib }, |
| 465 | { "movb", BL, Ib }, |
| 466 | { "movb", AH, Ib }, |
| 467 | { "movb", CH, Ib }, |
| 468 | { "movb", DH, Ib }, |
| 469 | { "movb", BH, Ib }, |
| 470 | /* b8 */ |
| 471 | { "movS", eAX, Iv }, |
| 472 | { "movS", eCX, Iv }, |
| 473 | { "movS", eDX, Iv }, |
| 474 | { "movS", eBX, Iv }, |
| 475 | { "movS", eSP, Iv }, |
| 476 | { "movS", eBP, Iv }, |
| 477 | { "movS", eSI, Iv }, |
| 478 | { "movS", eDI, Iv }, |
| 479 | /* c0 */ |
| 480 | { GRP2b }, |
| 481 | { GRP2S }, |
| 482 | { "ret", Iw }, |
| 483 | { "ret" }, |
| 484 | { "lesS", Gv, Mp }, |
| 485 | { "ldsS", Gv, Mp }, |
| 486 | { "movb", Eb, Ib }, |
| 487 | { "movS", Ev, Iv }, |
| 488 | /* c8 */ |
| 489 | { "enter", Iw, Ib }, |
| 490 | { "leave" }, |
| 491 | { "lret", Iw }, |
| 492 | { "lret" }, |
| 493 | { "int3" }, |
| 494 | { "int", Ib }, |
| 495 | { "into" }, |
| 496 | { "iret" }, |
| 497 | /* d0 */ |
| 498 | { GRP2b_one }, |
| 499 | { GRP2S_one }, |
| 500 | { GRP2b_cl }, |
| 501 | { GRP2S_cl }, |
| 502 | { "aam", Ib }, |
| 503 | { "aad", Ib }, |
| 504 | { "(bad)" }, |
| 505 | { "xlat" }, |
| 506 | /* d8 */ |
| 507 | { FLOAT }, |
| 508 | { FLOAT }, |
| 509 | { FLOAT }, |
| 510 | { FLOAT }, |
| 511 | { FLOAT }, |
| 512 | { FLOAT }, |
| 513 | { FLOAT }, |
| 514 | { FLOAT }, |
| 515 | /* e0 */ |
| 516 | { "loopne", Jb }, |
| 517 | { "loope", Jb }, |
| 518 | { "loop", Jb }, |
| 519 | { "jCcxz", Jb }, |
| 520 | { "inb", AL, Ib }, |
| 521 | { "inS", eAX, Ib }, |
| 522 | { "outb", Ib, AL }, |
| 523 | { "outS", Ib, eAX }, |
| 524 | /* e8 */ |
| 525 | { "call", Av }, |
| 526 | { "jmp", Jv }, |
| 527 | { "ljmp", Ap }, |
| 528 | { "jmp", Jb }, |
| 529 | { "inb", AL, indirDX }, |
| 530 | { "inS", eAX, indirDX }, |
| 531 | { "outb", indirDX, AL }, |
| 532 | { "outS", indirDX, eAX }, |
| 533 | /* f0 */ |
| 534 | { "(bad)" }, /* lock prefix */ |
| 535 | { "(bad)" }, |
| 536 | { "(bad)" }, /* repne */ |
| 537 | { "(bad)" }, /* repz */ |
| 538 | { "hlt" }, |
| 539 | { "cmc" }, |
| 540 | { GRP3b }, |
| 541 | { GRP3S }, |
| 542 | /* f8 */ |
| 543 | { "clc" }, |
| 544 | { "stc" }, |
| 545 | { "cli" }, |
| 546 | { "sti" }, |
| 547 | { "cld" }, |
| 548 | { "std" }, |
| 549 | { GRP4 }, |
| 550 | { GRP5 }, |
| 551 | }; |
| 552 | |
| 553 | static struct dis386 dis386_twobyte[] = { |
| 554 | /* 00 */ |
| 555 | { GRP6 }, |
| 556 | { GRP7 }, |
| 557 | { "larS", Gv, Ew }, |
| 558 | { "lslS", Gv, Ew }, |
| 559 | { "(bad)" }, |
| 560 | { "(bad)" }, |
| 561 | { "clts" }, |
| 562 | { "(bad)" }, |
| 563 | /* 08 */ |
| 564 | { "invd" }, |
| 565 | { "wbinvd" }, |
| 566 | { "(bad)" }, { "ud2a" }, |
| 567 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 568 | /* 10 */ |
| 569 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 570 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 571 | /* 18 */ |
| 572 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 573 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 574 | /* 20 */ |
| 575 | /* these are all backward in appendix A of the intel book */ |
| 576 | { "movl", Rd, Cd }, |
| 577 | { "movl", Rd, Dd }, |
| 578 | { "movl", Cd, Rd }, |
| 579 | { "movl", Dd, Rd }, |
| 580 | { "movl", Rd, Td }, |
| 581 | { "(bad)" }, |
| 582 | { "movl", Td, Rd }, |
| 583 | { "(bad)" }, |
| 584 | /* 28 */ |
| 585 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 586 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 587 | /* 30 */ |
| 588 | { "wrmsr" }, { "rdtsc" }, { "rdmsr" }, { "rdpmc" }, |
| 589 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 590 | /* 38 */ |
| 591 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 592 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 593 | /* 40 */ |
| 594 | { "cmovo", Gv,Ev }, { "cmovno", Gv,Ev }, { "cmovb", Gv,Ev }, { "cmovae", Gv,Ev }, |
| 595 | { "cmove", Gv,Ev }, { "cmovne", Gv,Ev }, { "cmovbe", Gv,Ev }, { "cmova", Gv,Ev }, |
| 596 | /* 48 */ |
| 597 | { "cmovs", Gv,Ev }, { "cmovns", Gv,Ev }, { "cmovp", Gv,Ev }, { "cmovnp", Gv,Ev }, |
| 598 | { "cmovl", Gv,Ev }, { "cmovge", Gv,Ev }, { "cmovle", Gv,Ev }, { "cmovg", Gv,Ev }, |
| 599 | /* 50 */ |
| 600 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 601 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 602 | /* 58 */ |
| 603 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 604 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 605 | /* 60 */ |
| 606 | { "punpcklbw", MX, EM }, |
| 607 | { "punpcklwd", MX, EM }, |
| 608 | { "punpckldq", MX, EM }, |
| 609 | { "packsswb", MX, EM }, |
| 610 | { "pcmpgtb", MX, EM }, |
| 611 | { "pcmpgtw", MX, EM }, |
| 612 | { "pcmpgtd", MX, EM }, |
| 613 | { "packuswb", MX, EM }, |
| 614 | /* 68 */ |
| 615 | { "punpckhbw", MX, EM }, |
| 616 | { "punpckhwd", MX, EM }, |
| 617 | { "punpckhdq", MX, EM }, |
| 618 | { "packssdw", MX, EM }, |
| 619 | { "(bad)" }, { "(bad)" }, |
| 620 | { "movd", MX, Ev }, |
| 621 | { "movq", MX, EM }, |
| 622 | /* 70 */ |
| 623 | { "(bad)" }, |
| 624 | { GRP10 }, |
| 625 | { GRP11 }, |
| 626 | { GRP12 }, |
| 627 | { "pcmpeqb", MX, EM }, |
| 628 | { "pcmpeqw", MX, EM }, |
| 629 | { "pcmpeqd", MX, EM }, |
| 630 | { "emms" }, |
| 631 | /* 78 */ |
| 632 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
| 633 | { "(bad)" }, { "(bad)" }, |
| 634 | { "movd", Ev, MX }, |
| 635 | { "movq", EM, MX }, |
| 636 | /* 80 */ |
| 637 | { "jo", Jv }, |
| 638 | { "jno", Jv }, |
| 639 | { "jb", Jv }, |
| 640 | { "jae", Jv }, |
| 641 | { "je", Jv }, |
| 642 | { "jne", Jv }, |
| 643 | { "jbe", Jv }, |
| 644 | { "ja", Jv }, |
| 645 | /* 88 */ |
| 646 | { "js", Jv }, |
| 647 | { "jns", Jv }, |
| 648 | { "jp", Jv }, |
| 649 | { "jnp", Jv }, |
| 650 | { "jl", Jv }, |
| 651 | { "jge", Jv }, |
| 652 | { "jle", Jv }, |
| 653 | { "jg", Jv }, |
| 654 | /* 90 */ |
| 655 | { "seto", Eb }, |
| 656 | { "setno", Eb }, |
| 657 | { "setb", Eb }, |
| 658 | { "setae", Eb }, |
| 659 | { "sete", Eb }, |
| 660 | { "setne", Eb }, |
| 661 | { "setbe", Eb }, |
| 662 | { "seta", Eb }, |
| 663 | /* 98 */ |
| 664 | { "sets", Eb }, |
| 665 | { "setns", Eb }, |
| 666 | { "setp", Eb }, |
| 667 | { "setnp", Eb }, |
| 668 | { "setl", Eb }, |
| 669 | { "setge", Eb }, |
| 670 | { "setle", Eb }, |
| 671 | { "setg", Eb }, |
| 672 | /* a0 */ |
| 673 | { "pushS", fs }, |
| 674 | { "popS", fs }, |
| 675 | { "cpuid" }, |
| 676 | { "btS", Ev, Gv }, |
| 677 | { "shldS", Ev, Gv, Ib }, |
| 678 | { "shldS", Ev, Gv, CL }, |
| 679 | { "(bad)" }, |
| 680 | { "(bad)" }, |
| 681 | /* a8 */ |
| 682 | { "pushS", gs }, |
| 683 | { "popS", gs }, |
| 684 | { "rsm" }, |
| 685 | { "btsS", Ev, Gv }, |
| 686 | { "shrdS", Ev, Gv, Ib }, |
| 687 | { "shrdS", Ev, Gv, CL }, |
| 688 | { "(bad)" }, |
| 689 | { "imulS", Gv, Ev }, |
| 690 | /* b0 */ |
| 691 | { "cmpxchgb", Eb, Gb }, |
| 692 | { "cmpxchgS", Ev, Gv }, |
| 693 | { "lssS", Gv, Mp }, /* 386 lists only Mp */ |
| 694 | { "btrS", Ev, Gv }, |
| 695 | { "lfsS", Gv, Mp }, /* 386 lists only Mp */ |
| 696 | { "lgsS", Gv, Mp }, /* 386 lists only Mp */ |
| 697 | { "movzbS", Gv, Eb }, |
| 698 | { "movzwS", Gv, Ew }, |
| 699 | /* b8 */ |
| 700 | { "ud2b" }, |
| 701 | { "(bad)" }, |
| 702 | { GRP8 }, |
| 703 | { "btcS", Ev, Gv }, |
| 704 | { "bsfS", Gv, Ev }, |
| 705 | { "bsrS", Gv, Ev }, |
| 706 | { "movsbS", Gv, Eb }, |
| 707 | { "movswS", Gv, Ew }, |
| 708 | /* c0 */ |
| 709 | { "xaddb", Eb, Gb }, |
| 710 | { "xaddS", Ev, Gv }, |
| 711 | { "(bad)" }, |
| 712 | { "(bad)" }, |
| 713 | { "(bad)" }, |
| 714 | { "(bad)" }, |
| 715 | { "(bad)" }, |
| 716 | { GRP9 }, |
| 717 | /* c8 */ |
| 718 | { "bswap", eAX }, |
| 719 | { "bswap", eCX }, |
| 720 | { "bswap", eDX }, |
| 721 | { "bswap", eBX }, |
| 722 | { "bswap", eSP }, |
| 723 | { "bswap", eBP }, |
| 724 | { "bswap", eSI }, |
| 725 | { "bswap", eDI }, |
| 726 | /* d0 */ |
| 727 | { "(bad)" }, |
| 728 | { "psrlw", MX, EM }, |
| 729 | { "psrld", MX, EM }, |
| 730 | { "psrlq", MX, EM }, |
| 731 | { "(bad)" }, |
| 732 | { "pmullw", MX, EM }, |
| 733 | { "(bad)" }, { "(bad)" }, |
| 734 | /* d8 */ |
| 735 | { "psubusb", MX, EM }, |
| 736 | { "psubusw", MX, EM }, |
| 737 | { "(bad)" }, |
| 738 | { "pand", MX, EM }, |
| 739 | { "paddusb", MX, EM }, |
| 740 | { "paddusw", MX, EM }, |
| 741 | { "(bad)" }, |
| 742 | { "pandn", MX, EM }, |
| 743 | /* e0 */ |
| 744 | { "(bad)" }, |
| 745 | { "psraw", MX, EM }, |
| 746 | { "psrad", MX, EM }, |
| 747 | { "(bad)" }, |
| 748 | { "(bad)" }, |
| 749 | { "pmulhw", MX, EM }, |
| 750 | { "(bad)" }, { "(bad)" }, |
| 751 | /* e8 */ |
| 752 | { "psubsb", MX, EM }, |
| 753 | { "psubsw", MX, EM }, |
| 754 | { "(bad)" }, |
| 755 | { "por", MX, EM }, |
| 756 | { "paddsb", MX, EM }, |
| 757 | { "paddsw", MX, EM }, |
| 758 | { "(bad)" }, |
| 759 | { "pxor", MX, EM }, |
| 760 | /* f0 */ |
| 761 | { "(bad)" }, |
| 762 | { "psllw", MX, EM }, |
| 763 | { "pslld", MX, EM }, |
| 764 | { "psllq", MX, EM }, |
| 765 | { "(bad)" }, |
| 766 | { "pmaddwd", MX, EM }, |
| 767 | { "(bad)" }, { "(bad)" }, |
| 768 | /* f8 */ |
| 769 | { "psubb", MX, EM }, |
| 770 | { "psubw", MX, EM }, |
| 771 | { "psubd", MX, EM }, |
| 772 | { "(bad)" }, |
| 773 | { "paddb", MX, EM }, |
| 774 | { "paddw", MX, EM }, |
| 775 | { "paddd", MX, EM }, |
| 776 | { "(bad)" } |
| 777 | }; |
| 778 | |
| 779 | static const unsigned char onebyte_has_modrm[256] = { |
| 780 | 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, |
| 781 | 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, |
| 782 | 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, |
| 783 | 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, |
| 784 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 785 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 786 | 0,0,1,1,0,0,0,0,0,1,0,1,0,0,0,0, |
| 787 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 788 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, |
| 789 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 790 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 791 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 792 | 1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,0, |
| 793 | 1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, |
| 794 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, |
| 795 | 0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1 |
| 796 | }; |
| 797 | |
| 798 | static const unsigned char twobyte_has_modrm[256] = { |
| 799 | /* 00 */ 1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */ |
| 800 | /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */ |
| 801 | /* 20 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* 2f */ |
| 802 | /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */ |
| 803 | /* 40 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4f */ |
| 804 | /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */ |
| 805 | /* 60 */ 1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1, /* 6f */ |
| 806 | /* 70 */ 0,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1, /* 7f */ |
| 807 | /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */ |
| 808 | /* 90 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 9f */ |
| 809 | /* a0 */ 0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1, /* af */ |
| 810 | /* b0 */ 1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1, /* bf */ |
| 811 | /* c0 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* cf */ |
| 812 | /* d0 */ 0,1,1,1,0,1,0,0,1,1,0,1,1,1,0,1, /* df */ |
| 813 | /* e0 */ 0,1,1,0,0,1,0,0,1,1,0,1,1,1,0,1, /* ef */ |
| 814 | /* f0 */ 0,1,1,1,0,1,0,0,1,1,1,0,1,1,1,0 /* ff */ |
| 815 | }; |
| 816 | |
| 817 | static char obuf[100]; |
| 818 | static char *obufp; |
| 819 | static char scratchbuf[100]; |
| 820 | static unsigned char *start_codep; |
| 821 | static unsigned char *codep; |
| 822 | static disassemble_info *the_info; |
| 823 | static int mod; |
| 824 | static int rm; |
| 825 | static int reg; |
| 826 | static void oappend PARAMS ((char *s)); |
| 827 | |
| 828 | static char *names32[]={ |
| 829 | "%eax","%ecx","%edx","%ebx", "%esp","%ebp","%esi","%edi", |
| 830 | }; |
| 831 | static char *names16[] = { |
| 832 | "%ax","%cx","%dx","%bx","%sp","%bp","%si","%di", |
| 833 | }; |
| 834 | static char *names8[] = { |
| 835 | "%al","%cl","%dl","%bl","%ah","%ch","%dh","%bh", |
| 836 | }; |
| 837 | static char *names_seg[] = { |
| 838 | "%es","%cs","%ss","%ds","%fs","%gs","%?","%?", |
| 839 | }; |
| 840 | static char *index16[] = { |
| 841 | "bx+si","bx+di","bp+si","bp+di","si","di","bp","bx" |
| 842 | }; |
| 843 | |
| 844 | static struct dis386 grps[][8] = { |
| 845 | /* GRP1b */ |
| 846 | { |
| 847 | { "addb", Eb, Ib }, |
| 848 | { "orb", Eb, Ib }, |
| 849 | { "adcb", Eb, Ib }, |
| 850 | { "sbbb", Eb, Ib }, |
| 851 | { "andb", Eb, Ib }, |
| 852 | { "subb", Eb, Ib }, |
| 853 | { "xorb", Eb, Ib }, |
| 854 | { "cmpb", Eb, Ib } |
| 855 | }, |
| 856 | /* GRP1S */ |
| 857 | { |
| 858 | { "addS", Ev, Iv }, |
| 859 | { "orS", Ev, Iv }, |
| 860 | { "adcS", Ev, Iv }, |
| 861 | { "sbbS", Ev, Iv }, |
| 862 | { "andS", Ev, Iv }, |
| 863 | { "subS", Ev, Iv }, |
| 864 | { "xorS", Ev, Iv }, |
| 865 | { "cmpS", Ev, Iv } |
| 866 | }, |
| 867 | /* GRP1Ss */ |
| 868 | { |
| 869 | { "addS", Ev, sIb }, |
| 870 | { "orS", Ev, sIb }, |
| 871 | { "adcS", Ev, sIb }, |
| 872 | { "sbbS", Ev, sIb }, |
| 873 | { "andS", Ev, sIb }, |
| 874 | { "subS", Ev, sIb }, |
| 875 | { "xorS", Ev, sIb }, |
| 876 | { "cmpS", Ev, sIb } |
| 877 | }, |
| 878 | /* GRP2b */ |
| 879 | { |
| 880 | { "rolb", Eb, Ib }, |
| 881 | { "rorb", Eb, Ib }, |
| 882 | { "rclb", Eb, Ib }, |
| 883 | { "rcrb", Eb, Ib }, |
| 884 | { "shlb", Eb, Ib }, |
| 885 | { "shrb", Eb, Ib }, |
| 886 | { "(bad)" }, |
| 887 | { "sarb", Eb, Ib }, |
| 888 | }, |
| 889 | /* GRP2S */ |
| 890 | { |
| 891 | { "rolS", Ev, Ib }, |
| 892 | { "rorS", Ev, Ib }, |
| 893 | { "rclS", Ev, Ib }, |
| 894 | { "rcrS", Ev, Ib }, |
| 895 | { "shlS", Ev, Ib }, |
| 896 | { "shrS", Ev, Ib }, |
| 897 | { "(bad)" }, |
| 898 | { "sarS", Ev, Ib }, |
| 899 | }, |
| 900 | /* GRP2b_one */ |
| 901 | { |
| 902 | { "rolb", Eb }, |
| 903 | { "rorb", Eb }, |
| 904 | { "rclb", Eb }, |
| 905 | { "rcrb", Eb }, |
| 906 | { "shlb", Eb }, |
| 907 | { "shrb", Eb }, |
| 908 | { "(bad)" }, |
| 909 | { "sarb", Eb }, |
| 910 | }, |
| 911 | /* GRP2S_one */ |
| 912 | { |
| 913 | { "rolS", Ev }, |
| 914 | { "rorS", Ev }, |
| 915 | { "rclS", Ev }, |
| 916 | { "rcrS", Ev }, |
| 917 | { "shlS", Ev }, |
| 918 | { "shrS", Ev }, |
| 919 | { "(bad)" }, |
| 920 | { "sarS", Ev }, |
| 921 | }, |
| 922 | /* GRP2b_cl */ |
| 923 | { |
| 924 | { "rolb", Eb, CL }, |
| 925 | { "rorb", Eb, CL }, |
| 926 | { "rclb", Eb, CL }, |
| 927 | { "rcrb", Eb, CL }, |
| 928 | { "shlb", Eb, CL }, |
| 929 | { "shrb", Eb, CL }, |
| 930 | { "(bad)" }, |
| 931 | { "sarb", Eb, CL }, |
| 932 | }, |
| 933 | /* GRP2S_cl */ |
| 934 | { |
| 935 | { "rolS", Ev, CL }, |
| 936 | { "rorS", Ev, CL }, |
| 937 | { "rclS", Ev, CL }, |
| 938 | { "rcrS", Ev, CL }, |
| 939 | { "shlS", Ev, CL }, |
| 940 | { "shrS", Ev, CL }, |
| 941 | { "(bad)" }, |
| 942 | { "sarS", Ev, CL } |
| 943 | }, |
| 944 | /* GRP3b */ |
| 945 | { |
| 946 | { "testb", Eb, Ib }, |
| 947 | { "(bad)", Eb }, |
| 948 | { "notb", Eb }, |
| 949 | { "negb", Eb }, |
| 950 | { "mulb", AL, Eb }, |
| 951 | { "imulb", AL, Eb }, |
| 952 | { "divb", AL, Eb }, |
| 953 | { "idivb", AL, Eb } |
| 954 | }, |
| 955 | /* GRP3S */ |
| 956 | { |
| 957 | { "testS", Ev, Iv }, |
| 958 | { "(bad)" }, |
| 959 | { "notS", Ev }, |
| 960 | { "negS", Ev }, |
| 961 | { "mulS", eAX, Ev }, |
| 962 | { "imulS", eAX, Ev }, |
| 963 | { "divS", eAX, Ev }, |
| 964 | { "idivS", eAX, Ev }, |
| 965 | }, |
| 966 | /* GRP4 */ |
| 967 | { |
| 968 | { "incb", Eb }, |
| 969 | { "decb", Eb }, |
| 970 | { "(bad)" }, |
| 971 | { "(bad)" }, |
| 972 | { "(bad)" }, |
| 973 | { "(bad)" }, |
| 974 | { "(bad)" }, |
| 975 | { "(bad)" }, |
| 976 | }, |
| 977 | /* GRP5 */ |
| 978 | { |
| 979 | { "incS", Ev }, |
| 980 | { "decS", Ev }, |
| 981 | { "call", indirEv }, |
| 982 | { "lcall", indirEv }, |
| 983 | { "jmp", indirEv }, |
| 984 | { "ljmp", indirEv }, |
| 985 | { "pushS", Ev }, |
| 986 | { "(bad)" }, |
| 987 | }, |
| 988 | /* GRP6 */ |
| 989 | { |
| 990 | { "sldt", Ew }, |
| 991 | { "str", Ew }, |
| 992 | { "lldt", Ew }, |
| 993 | { "ltr", Ew }, |
| 994 | { "verr", Ew }, |
| 995 | { "verw", Ew }, |
| 996 | { "(bad)" }, |
| 997 | { "(bad)" } |
| 998 | }, |
| 999 | /* GRP7 */ |
| 1000 | { |
| 1001 | { "sgdt", Ew }, |
| 1002 | { "sidt", Ew }, |
| 1003 | { "lgdt", Ew }, |
| 1004 | { "lidt", Ew }, |
| 1005 | { "smsw", Ew }, |
| 1006 | { "(bad)" }, |
| 1007 | { "lmsw", Ew }, |
| 1008 | { "invlpg", Ew }, |
| 1009 | }, |
| 1010 | /* GRP8 */ |
| 1011 | { |
| 1012 | { "(bad)" }, |
| 1013 | { "(bad)" }, |
| 1014 | { "(bad)" }, |
| 1015 | { "(bad)" }, |
| 1016 | { "btS", Ev, Ib }, |
| 1017 | { "btsS", Ev, Ib }, |
| 1018 | { "btrS", Ev, Ib }, |
| 1019 | { "btcS", Ev, Ib }, |
| 1020 | }, |
| 1021 | /* GRP9 */ |
| 1022 | { |
| 1023 | { "(bad)" }, |
| 1024 | { "cmpxchg8b", Ev }, |
| 1025 | { "(bad)" }, |
| 1026 | { "(bad)" }, |
| 1027 | { "(bad)" }, |
| 1028 | { "(bad)" }, |
| 1029 | { "(bad)" }, |
| 1030 | { "(bad)" }, |
| 1031 | }, |
| 1032 | /* GRP10 */ |
| 1033 | { |
| 1034 | { "(bad)" }, |
| 1035 | { "(bad)" }, |
| 1036 | { "psrlw", MS, Ib }, |
| 1037 | { "(bad)" }, |
| 1038 | { "psraw", MS, Ib }, |
| 1039 | { "(bad)" }, |
| 1040 | { "psllw", MS, Ib }, |
| 1041 | { "(bad)" }, |
| 1042 | }, |
| 1043 | /* GRP11 */ |
| 1044 | { |
| 1045 | { "(bad)" }, |
| 1046 | { "(bad)" }, |
| 1047 | { "psrld", MS, Ib }, |
| 1048 | { "(bad)" }, |
| 1049 | { "psrad", MS, Ib }, |
| 1050 | { "(bad)" }, |
| 1051 | { "pslld", MS, Ib }, |
| 1052 | { "(bad)" }, |
| 1053 | }, |
| 1054 | /* GRP12 */ |
| 1055 | { |
| 1056 | { "(bad)" }, |
| 1057 | { "(bad)" }, |
| 1058 | { "psrlq", MS, Ib }, |
| 1059 | { "(bad)" }, |
| 1060 | { "(bad)" }, |
| 1061 | { "(bad)" }, |
| 1062 | { "psllq", MS, Ib }, |
| 1063 | { "(bad)" }, |
| 1064 | } |
| 1065 | }; |
| 1066 | |
| 1067 | #define PREFIX_REPZ 1 |
| 1068 | #define PREFIX_REPNZ 2 |
| 1069 | #define PREFIX_LOCK 4 |
| 1070 | #define PREFIX_CS 8 |
| 1071 | #define PREFIX_SS 0x10 |
| 1072 | #define PREFIX_DS 0x20 |
| 1073 | #define PREFIX_ES 0x40 |
| 1074 | #define PREFIX_FS 0x80 |
| 1075 | #define PREFIX_GS 0x100 |
| 1076 | #define PREFIX_DATA 0x200 |
| 1077 | #define PREFIX_ADR 0x400 |
| 1078 | #define PREFIX_FWAIT 0x800 |
| 1079 | |
| 1080 | static int prefixes; |
| 1081 | |
| 1082 | static void |
| 1083 | ckprefix () |
| 1084 | { |
| 1085 | prefixes = 0; |
| 1086 | while (1) |
| 1087 | { |
| 1088 | FETCH_DATA (the_info, codep + 1); |
| 1089 | switch (*codep) |
| 1090 | { |
| 1091 | case 0xf3: |
| 1092 | prefixes |= PREFIX_REPZ; |
| 1093 | break; |
| 1094 | case 0xf2: |
| 1095 | prefixes |= PREFIX_REPNZ; |
| 1096 | break; |
| 1097 | case 0xf0: |
| 1098 | prefixes |= PREFIX_LOCK; |
| 1099 | break; |
| 1100 | case 0x2e: |
| 1101 | prefixes |= PREFIX_CS; |
| 1102 | break; |
| 1103 | case 0x36: |
| 1104 | prefixes |= PREFIX_SS; |
| 1105 | break; |
| 1106 | case 0x3e: |
| 1107 | prefixes |= PREFIX_DS; |
| 1108 | break; |
| 1109 | case 0x26: |
| 1110 | prefixes |= PREFIX_ES; |
| 1111 | break; |
| 1112 | case 0x64: |
| 1113 | prefixes |= PREFIX_FS; |
| 1114 | break; |
| 1115 | case 0x65: |
| 1116 | prefixes |= PREFIX_GS; |
| 1117 | break; |
| 1118 | case 0x66: |
| 1119 | prefixes |= PREFIX_DATA; |
| 1120 | break; |
| 1121 | case 0x67: |
| 1122 | prefixes |= PREFIX_ADR; |
| 1123 | break; |
| 1124 | case 0x9b: |
| 1125 | prefixes |= PREFIX_FWAIT; |
| 1126 | break; |
| 1127 | default: |
| 1128 | return; |
| 1129 | } |
| 1130 | codep++; |
| 1131 | } |
| 1132 | } |
| 1133 | |
| 1134 | static char op1out[100], op2out[100], op3out[100]; |
| 1135 | static int op_address[3], op_ad, op_index[3]; |
| 1136 | static int start_pc; |
| 1137 | |
| 1138 | |
| 1139 | /* |
| 1140 | * On the 386's of 1988, the maximum length of an instruction is 15 bytes. |
| 1141 | * (see topic "Redundant prefixes" in the "Differences from 8086" |
| 1142 | * section of the "Virtual 8086 Mode" chapter.) |
| 1143 | * 'pc' should be the address of this instruction, it will |
| 1144 | * be used to print the target address if this is a relative jump or call |
| 1145 | * The function returns the length of this instruction in bytes. |
| 1146 | */ |
| 1147 | |
| 1148 | int print_insn_x86 PARAMS ((bfd_vma pc, disassemble_info *info, int aflag, |
| 1149 | int dflag)); |
| 1150 | int |
| 1151 | print_insn_i386 (pc, info) |
| 1152 | bfd_vma pc; |
| 1153 | disassemble_info *info; |
| 1154 | { |
| 1155 | if (info->mach == bfd_mach_i386_i386) |
| 1156 | return print_insn_x86 (pc, info, 1, 1); |
| 1157 | else if (info->mach == bfd_mach_i386_i8086) |
| 1158 | return print_insn_x86 (pc, info, 0, 0); |
| 1159 | else |
| 1160 | abort (); |
| 1161 | } |
| 1162 | |
| 1163 | int |
| 1164 | print_insn_x86 (pc, info, aflag, dflag) |
| 1165 | bfd_vma pc; |
| 1166 | disassemble_info *info; |
bellard | aa0aa4f | 2003-06-09 15:23:31 +0000 | [diff] [blame] | 1167 | int volatile aflag; |
| 1168 | int volatile dflag; |
bellard | dc99065 | 2003-03-19 00:00:28 +0000 | [diff] [blame] | 1169 | { |
| 1170 | struct dis386 *dp; |
| 1171 | int i; |
| 1172 | int enter_instruction; |
| 1173 | char *first, *second, *third; |
| 1174 | int needcomma; |
| 1175 | unsigned char need_modrm; |
| 1176 | |
| 1177 | struct dis_private priv; |
| 1178 | bfd_byte *inbuf = priv.the_buffer; |
| 1179 | |
| 1180 | /* The output looks better if we put 5 bytes on a line, since that |
| 1181 | puts long word instructions on a single line. */ |
| 1182 | info->bytes_per_line = 5; |
| 1183 | |
| 1184 | info->private_data = (PTR) &priv; |
| 1185 | priv.max_fetched = priv.the_buffer; |
| 1186 | priv.insn_start = pc; |
| 1187 | if (setjmp (priv.bailout) != 0) |
| 1188 | /* Error return. */ |
| 1189 | return -1; |
| 1190 | |
| 1191 | obuf[0] = 0; |
| 1192 | op1out[0] = 0; |
| 1193 | op2out[0] = 0; |
| 1194 | op3out[0] = 0; |
| 1195 | |
| 1196 | op_index[0] = op_index[1] = op_index[2] = -1; |
| 1197 | |
| 1198 | the_info = info; |
| 1199 | start_pc = pc; |
| 1200 | start_codep = inbuf; |
| 1201 | codep = inbuf; |
| 1202 | |
| 1203 | ckprefix (); |
| 1204 | |
| 1205 | FETCH_DATA (info, codep + 1); |
| 1206 | if (*codep == 0xc8) |
| 1207 | enter_instruction = 1; |
| 1208 | else |
| 1209 | enter_instruction = 0; |
| 1210 | |
| 1211 | obufp = obuf; |
| 1212 | |
| 1213 | if (prefixes & PREFIX_REPZ) |
| 1214 | oappend ("repz "); |
| 1215 | if (prefixes & PREFIX_REPNZ) |
| 1216 | oappend ("repnz "); |
| 1217 | if (prefixes & PREFIX_LOCK) |
| 1218 | oappend ("lock "); |
| 1219 | |
| 1220 | if ((prefixes & PREFIX_FWAIT) |
| 1221 | && ((*codep < 0xd8) || (*codep > 0xdf))) |
| 1222 | { |
| 1223 | /* fwait not followed by floating point instruction */ |
| 1224 | (*info->fprintf_func) (info->stream, "fwait"); |
| 1225 | return (1); |
| 1226 | } |
| 1227 | |
| 1228 | if (prefixes & PREFIX_DATA) |
| 1229 | dflag ^= 1; |
| 1230 | |
| 1231 | if (prefixes & PREFIX_ADR) |
| 1232 | { |
| 1233 | aflag ^= 1; |
| 1234 | if (aflag) |
| 1235 | oappend ("addr32 "); |
| 1236 | else |
| 1237 | oappend ("addr16 "); |
| 1238 | } |
| 1239 | |
| 1240 | if (*codep == 0x0f) |
| 1241 | { |
| 1242 | FETCH_DATA (info, codep + 2); |
| 1243 | dp = &dis386_twobyte[*++codep]; |
| 1244 | need_modrm = twobyte_has_modrm[*codep]; |
| 1245 | } |
| 1246 | else |
| 1247 | { |
| 1248 | dp = &dis386[*codep]; |
| 1249 | need_modrm = onebyte_has_modrm[*codep]; |
| 1250 | } |
| 1251 | codep++; |
| 1252 | |
| 1253 | if (need_modrm) |
| 1254 | { |
| 1255 | FETCH_DATA (info, codep + 1); |
| 1256 | mod = (*codep >> 6) & 3; |
| 1257 | reg = (*codep >> 3) & 7; |
| 1258 | rm = *codep & 7; |
| 1259 | } |
| 1260 | |
| 1261 | if (dp->name == NULL && dp->bytemode1 == FLOATCODE) |
| 1262 | { |
| 1263 | dofloat (aflag, dflag); |
| 1264 | } |
| 1265 | else |
| 1266 | { |
| 1267 | if (dp->name == NULL) |
| 1268 | dp = &grps[dp->bytemode1][reg]; |
| 1269 | |
| 1270 | putop (dp->name, aflag, dflag); |
| 1271 | |
| 1272 | obufp = op1out; |
| 1273 | op_ad = 2; |
| 1274 | if (dp->op1) |
| 1275 | (*dp->op1)(dp->bytemode1, aflag, dflag); |
| 1276 | |
| 1277 | obufp = op2out; |
| 1278 | op_ad = 1; |
| 1279 | if (dp->op2) |
| 1280 | (*dp->op2)(dp->bytemode2, aflag, dflag); |
| 1281 | |
| 1282 | obufp = op3out; |
| 1283 | op_ad = 0; |
| 1284 | if (dp->op3) |
| 1285 | (*dp->op3)(dp->bytemode3, aflag, dflag); |
| 1286 | } |
| 1287 | |
| 1288 | obufp = obuf + strlen (obuf); |
| 1289 | for (i = strlen (obuf); i < 6; i++) |
| 1290 | oappend (" "); |
| 1291 | oappend (" "); |
| 1292 | (*info->fprintf_func) (info->stream, "%s", obuf); |
| 1293 | |
| 1294 | /* enter instruction is printed with operands in the |
| 1295 | * same order as the intel book; everything else |
| 1296 | * is printed in reverse order |
| 1297 | */ |
| 1298 | if (enter_instruction) |
| 1299 | { |
| 1300 | first = op1out; |
| 1301 | second = op2out; |
| 1302 | third = op3out; |
| 1303 | op_ad = op_index[0]; |
| 1304 | op_index[0] = op_index[2]; |
| 1305 | op_index[2] = op_ad; |
| 1306 | } |
| 1307 | else |
| 1308 | { |
| 1309 | first = op3out; |
| 1310 | second = op2out; |
| 1311 | third = op1out; |
| 1312 | } |
| 1313 | needcomma = 0; |
| 1314 | if (*first) |
| 1315 | { |
| 1316 | if (op_index[0] != -1) |
| 1317 | (*info->print_address_func) (op_address[op_index[0]], info); |
| 1318 | else |
| 1319 | (*info->fprintf_func) (info->stream, "%s", first); |
| 1320 | needcomma = 1; |
| 1321 | } |
| 1322 | if (*second) |
| 1323 | { |
| 1324 | if (needcomma) |
| 1325 | (*info->fprintf_func) (info->stream, ","); |
| 1326 | if (op_index[1] != -1) |
| 1327 | (*info->print_address_func) (op_address[op_index[1]], info); |
| 1328 | else |
| 1329 | (*info->fprintf_func) (info->stream, "%s", second); |
| 1330 | needcomma = 1; |
| 1331 | } |
| 1332 | if (*third) |
| 1333 | { |
| 1334 | if (needcomma) |
| 1335 | (*info->fprintf_func) (info->stream, ","); |
| 1336 | if (op_index[2] != -1) |
| 1337 | (*info->print_address_func) (op_address[op_index[2]], info); |
| 1338 | else |
| 1339 | (*info->fprintf_func) (info->stream, "%s", third); |
| 1340 | } |
| 1341 | return (codep - inbuf); |
| 1342 | } |
| 1343 | |
| 1344 | static char *float_mem[] = { |
| 1345 | /* d8 */ |
| 1346 | "fadds", |
| 1347 | "fmuls", |
| 1348 | "fcoms", |
| 1349 | "fcomps", |
| 1350 | "fsubs", |
| 1351 | "fsubrs", |
| 1352 | "fdivs", |
| 1353 | "fdivrs", |
| 1354 | /* d9 */ |
| 1355 | "flds", |
| 1356 | "(bad)", |
| 1357 | "fsts", |
| 1358 | "fstps", |
| 1359 | "fldenv", |
| 1360 | "fldcw", |
| 1361 | "fNstenv", |
| 1362 | "fNstcw", |
| 1363 | /* da */ |
| 1364 | "fiaddl", |
| 1365 | "fimull", |
| 1366 | "ficoml", |
| 1367 | "ficompl", |
| 1368 | "fisubl", |
| 1369 | "fisubrl", |
| 1370 | "fidivl", |
| 1371 | "fidivrl", |
| 1372 | /* db */ |
| 1373 | "fildl", |
| 1374 | "(bad)", |
| 1375 | "fistl", |
| 1376 | "fistpl", |
| 1377 | "(bad)", |
| 1378 | "fldt", |
| 1379 | "(bad)", |
| 1380 | "fstpt", |
| 1381 | /* dc */ |
| 1382 | "faddl", |
| 1383 | "fmull", |
| 1384 | "fcoml", |
| 1385 | "fcompl", |
| 1386 | "fsubl", |
| 1387 | "fsubrl", |
| 1388 | "fdivl", |
| 1389 | "fdivrl", |
| 1390 | /* dd */ |
| 1391 | "fldl", |
| 1392 | "(bad)", |
| 1393 | "fstl", |
| 1394 | "fstpl", |
| 1395 | "frstor", |
| 1396 | "(bad)", |
| 1397 | "fNsave", |
| 1398 | "fNstsw", |
| 1399 | /* de */ |
| 1400 | "fiadd", |
| 1401 | "fimul", |
| 1402 | "ficom", |
| 1403 | "ficomp", |
| 1404 | "fisub", |
| 1405 | "fisubr", |
| 1406 | "fidiv", |
| 1407 | "fidivr", |
| 1408 | /* df */ |
| 1409 | "fild", |
| 1410 | "(bad)", |
| 1411 | "fist", |
| 1412 | "fistp", |
| 1413 | "fbld", |
| 1414 | "fildll", |
| 1415 | "fbstp", |
| 1416 | "fistpll", |
| 1417 | }; |
| 1418 | |
| 1419 | #define ST OP_ST, 0 |
| 1420 | #define STi OP_STi, 0 |
| 1421 | |
| 1422 | #define FGRPd9_2 NULL, NULL, 0 |
| 1423 | #define FGRPd9_4 NULL, NULL, 1 |
| 1424 | #define FGRPd9_5 NULL, NULL, 2 |
| 1425 | #define FGRPd9_6 NULL, NULL, 3 |
| 1426 | #define FGRPd9_7 NULL, NULL, 4 |
| 1427 | #define FGRPda_5 NULL, NULL, 5 |
| 1428 | #define FGRPdb_4 NULL, NULL, 6 |
| 1429 | #define FGRPde_3 NULL, NULL, 7 |
| 1430 | #define FGRPdf_4 NULL, NULL, 8 |
| 1431 | |
| 1432 | static struct dis386 float_reg[][8] = { |
| 1433 | /* d8 */ |
| 1434 | { |
| 1435 | { "fadd", ST, STi }, |
| 1436 | { "fmul", ST, STi }, |
| 1437 | { "fcom", STi }, |
| 1438 | { "fcomp", STi }, |
| 1439 | { "fsub", ST, STi }, |
| 1440 | { "fsubr", ST, STi }, |
| 1441 | { "fdiv", ST, STi }, |
| 1442 | { "fdivr", ST, STi }, |
| 1443 | }, |
| 1444 | /* d9 */ |
| 1445 | { |
| 1446 | { "fld", STi }, |
| 1447 | { "fxch", STi }, |
| 1448 | { FGRPd9_2 }, |
| 1449 | { "(bad)" }, |
| 1450 | { FGRPd9_4 }, |
| 1451 | { FGRPd9_5 }, |
| 1452 | { FGRPd9_6 }, |
| 1453 | { FGRPd9_7 }, |
| 1454 | }, |
| 1455 | /* da */ |
| 1456 | { |
| 1457 | { "fcmovb", ST, STi }, |
| 1458 | { "fcmove", ST, STi }, |
| 1459 | { "fcmovbe",ST, STi }, |
| 1460 | { "fcmovu", ST, STi }, |
| 1461 | { "(bad)" }, |
| 1462 | { FGRPda_5 }, |
| 1463 | { "(bad)" }, |
| 1464 | { "(bad)" }, |
| 1465 | }, |
| 1466 | /* db */ |
| 1467 | { |
| 1468 | { "fcmovnb",ST, STi }, |
| 1469 | { "fcmovne",ST, STi }, |
| 1470 | { "fcmovnbe",ST, STi }, |
| 1471 | { "fcmovnu",ST, STi }, |
| 1472 | { FGRPdb_4 }, |
| 1473 | { "fucomi", ST, STi }, |
| 1474 | { "fcomi", ST, STi }, |
| 1475 | { "(bad)" }, |
| 1476 | }, |
| 1477 | /* dc */ |
| 1478 | { |
| 1479 | { "fadd", STi, ST }, |
| 1480 | { "fmul", STi, ST }, |
| 1481 | { "(bad)" }, |
| 1482 | { "(bad)" }, |
| 1483 | { "fsub", STi, ST }, |
| 1484 | { "fsubr", STi, ST }, |
| 1485 | { "fdiv", STi, ST }, |
| 1486 | { "fdivr", STi, ST }, |
| 1487 | }, |
| 1488 | /* dd */ |
| 1489 | { |
| 1490 | { "ffree", STi }, |
| 1491 | { "(bad)" }, |
| 1492 | { "fst", STi }, |
| 1493 | { "fstp", STi }, |
| 1494 | { "fucom", STi }, |
| 1495 | { "fucomp", STi }, |
| 1496 | { "(bad)" }, |
| 1497 | { "(bad)" }, |
| 1498 | }, |
| 1499 | /* de */ |
| 1500 | { |
| 1501 | { "faddp", STi, ST }, |
| 1502 | { "fmulp", STi, ST }, |
| 1503 | { "(bad)" }, |
| 1504 | { FGRPde_3 }, |
| 1505 | { "fsubp", STi, ST }, |
| 1506 | { "fsubrp", STi, ST }, |
| 1507 | { "fdivp", STi, ST }, |
| 1508 | { "fdivrp", STi, ST }, |
| 1509 | }, |
| 1510 | /* df */ |
| 1511 | { |
| 1512 | { "(bad)" }, |
| 1513 | { "(bad)" }, |
| 1514 | { "(bad)" }, |
| 1515 | { "(bad)" }, |
| 1516 | { FGRPdf_4 }, |
| 1517 | { "fucomip",ST, STi }, |
| 1518 | { "fcomip", ST, STi }, |
| 1519 | { "(bad)" }, |
| 1520 | }, |
| 1521 | }; |
| 1522 | |
| 1523 | |
| 1524 | static char *fgrps[][8] = { |
| 1525 | /* d9_2 0 */ |
| 1526 | { |
| 1527 | "fnop","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", |
| 1528 | }, |
| 1529 | |
| 1530 | /* d9_4 1 */ |
| 1531 | { |
| 1532 | "fchs","fabs","(bad)","(bad)","ftst","fxam","(bad)","(bad)", |
| 1533 | }, |
| 1534 | |
| 1535 | /* d9_5 2 */ |
| 1536 | { |
| 1537 | "fld1","fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz","(bad)", |
| 1538 | }, |
| 1539 | |
| 1540 | /* d9_6 3 */ |
| 1541 | { |
| 1542 | "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp","fincstp", |
| 1543 | }, |
| 1544 | |
| 1545 | /* d9_7 4 */ |
| 1546 | { |
| 1547 | "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos", |
| 1548 | }, |
| 1549 | |
| 1550 | /* da_5 5 */ |
| 1551 | { |
| 1552 | "(bad)","fucompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", |
| 1553 | }, |
| 1554 | |
| 1555 | /* db_4 6 */ |
| 1556 | { |
| 1557 | "feni(287 only)","fdisi(287 only)","fNclex","fNinit", |
| 1558 | "fNsetpm(287 only)","(bad)","(bad)","(bad)", |
| 1559 | }, |
| 1560 | |
| 1561 | /* de_3 7 */ |
| 1562 | { |
| 1563 | "(bad)","fcompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", |
| 1564 | }, |
| 1565 | |
| 1566 | /* df_4 8 */ |
| 1567 | { |
| 1568 | "fNstsw","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", |
| 1569 | }, |
| 1570 | }; |
| 1571 | |
| 1572 | static void |
| 1573 | dofloat (aflag, dflag) |
| 1574 | int aflag; |
| 1575 | int dflag; |
| 1576 | { |
| 1577 | struct dis386 *dp; |
| 1578 | unsigned char floatop; |
| 1579 | |
| 1580 | floatop = codep[-1]; |
| 1581 | |
| 1582 | if (mod != 3) |
| 1583 | { |
| 1584 | putop (float_mem[(floatop - 0xd8) * 8 + reg], aflag, dflag); |
| 1585 | obufp = op1out; |
| 1586 | OP_E (v_mode, aflag, dflag); |
| 1587 | return; |
| 1588 | } |
| 1589 | codep++; |
| 1590 | |
| 1591 | dp = &float_reg[floatop - 0xd8][reg]; |
| 1592 | if (dp->name == NULL) |
| 1593 | { |
| 1594 | putop (fgrps[dp->bytemode1][rm], aflag, dflag); |
| 1595 | /* instruction fnstsw is only one with strange arg */ |
| 1596 | if (floatop == 0xdf |
| 1597 | && FETCH_DATA (the_info, codep + 1) |
| 1598 | && *codep == 0xe0) |
| 1599 | strcpy (op1out, "%eax"); |
| 1600 | } |
| 1601 | else |
| 1602 | { |
| 1603 | putop (dp->name, aflag, dflag); |
| 1604 | obufp = op1out; |
| 1605 | if (dp->op1) |
| 1606 | (*dp->op1)(dp->bytemode1, aflag, dflag); |
| 1607 | obufp = op2out; |
| 1608 | if (dp->op2) |
| 1609 | (*dp->op2)(dp->bytemode2, aflag, dflag); |
| 1610 | } |
| 1611 | } |
| 1612 | |
| 1613 | /* ARGSUSED */ |
| 1614 | static int |
| 1615 | OP_ST (ignore, aflag, dflag) |
| 1616 | int ignore; |
| 1617 | int aflag; |
| 1618 | int dflag; |
| 1619 | { |
| 1620 | oappend ("%st"); |
| 1621 | return (0); |
| 1622 | } |
| 1623 | |
| 1624 | /* ARGSUSED */ |
| 1625 | static int |
| 1626 | OP_STi (ignore, aflag, dflag) |
| 1627 | int ignore; |
| 1628 | int aflag; |
| 1629 | int dflag; |
| 1630 | { |
| 1631 | sprintf (scratchbuf, "%%st(%d)", rm); |
| 1632 | oappend (scratchbuf); |
| 1633 | return (0); |
| 1634 | } |
| 1635 | |
| 1636 | |
| 1637 | /* capital letters in template are macros */ |
| 1638 | static void |
| 1639 | putop (template, aflag, dflag) |
| 1640 | char *template; |
| 1641 | int aflag; |
| 1642 | int dflag; |
| 1643 | { |
| 1644 | char *p; |
| 1645 | |
| 1646 | for (p = template; *p; p++) |
| 1647 | { |
| 1648 | switch (*p) |
| 1649 | { |
| 1650 | default: |
| 1651 | *obufp++ = *p; |
| 1652 | break; |
| 1653 | case 'C': /* For jcxz/jecxz */ |
| 1654 | if (aflag) |
| 1655 | *obufp++ = 'e'; |
| 1656 | break; |
| 1657 | case 'N': |
| 1658 | if ((prefixes & PREFIX_FWAIT) == 0) |
| 1659 | *obufp++ = 'n'; |
| 1660 | break; |
| 1661 | case 'S': |
| 1662 | /* operand size flag */ |
| 1663 | if (dflag) |
| 1664 | *obufp++ = 'l'; |
| 1665 | else |
| 1666 | *obufp++ = 'w'; |
| 1667 | break; |
| 1668 | case 'W': |
| 1669 | /* operand size flag for cwtl, cbtw */ |
| 1670 | if (dflag) |
| 1671 | *obufp++ = 'w'; |
| 1672 | else |
| 1673 | *obufp++ = 'b'; |
| 1674 | break; |
| 1675 | } |
| 1676 | } |
| 1677 | *obufp = 0; |
| 1678 | } |
| 1679 | |
| 1680 | static void |
| 1681 | oappend (s) |
| 1682 | char *s; |
| 1683 | { |
| 1684 | strcpy (obufp, s); |
| 1685 | obufp += strlen (s); |
| 1686 | *obufp = 0; |
| 1687 | } |
| 1688 | |
| 1689 | static void |
| 1690 | append_prefix () |
| 1691 | { |
| 1692 | if (prefixes & PREFIX_CS) |
| 1693 | oappend ("%cs:"); |
| 1694 | if (prefixes & PREFIX_DS) |
| 1695 | oappend ("%ds:"); |
| 1696 | if (prefixes & PREFIX_SS) |
| 1697 | oappend ("%ss:"); |
| 1698 | if (prefixes & PREFIX_ES) |
| 1699 | oappend ("%es:"); |
| 1700 | if (prefixes & PREFIX_FS) |
| 1701 | oappend ("%fs:"); |
| 1702 | if (prefixes & PREFIX_GS) |
| 1703 | oappend ("%gs:"); |
| 1704 | } |
| 1705 | |
| 1706 | static int |
| 1707 | OP_indirE (bytemode, aflag, dflag) |
| 1708 | int bytemode; |
| 1709 | int aflag; |
| 1710 | int dflag; |
| 1711 | { |
| 1712 | oappend ("*"); |
| 1713 | return OP_E (bytemode, aflag, dflag); |
| 1714 | } |
| 1715 | |
| 1716 | static int |
| 1717 | OP_E (bytemode, aflag, dflag) |
| 1718 | int bytemode; |
| 1719 | int aflag; |
| 1720 | int dflag; |
| 1721 | { |
| 1722 | int disp; |
| 1723 | |
| 1724 | /* skip mod/rm byte */ |
| 1725 | codep++; |
| 1726 | |
| 1727 | if (mod == 3) |
| 1728 | { |
| 1729 | switch (bytemode) |
| 1730 | { |
| 1731 | case b_mode: |
| 1732 | oappend (names8[rm]); |
| 1733 | break; |
| 1734 | case w_mode: |
| 1735 | oappend (names16[rm]); |
| 1736 | break; |
| 1737 | case v_mode: |
| 1738 | if (dflag) |
| 1739 | oappend (names32[rm]); |
| 1740 | else |
| 1741 | oappend (names16[rm]); |
| 1742 | break; |
| 1743 | default: |
| 1744 | oappend ("<bad dis table>"); |
| 1745 | break; |
| 1746 | } |
| 1747 | return 0; |
| 1748 | } |
| 1749 | |
| 1750 | disp = 0; |
| 1751 | append_prefix (); |
| 1752 | |
| 1753 | if (aflag) /* 32 bit address mode */ |
| 1754 | { |
| 1755 | int havesib; |
| 1756 | int havebase; |
| 1757 | int base; |
| 1758 | int index = 0; |
| 1759 | int scale = 0; |
| 1760 | |
| 1761 | havesib = 0; |
| 1762 | havebase = 1; |
| 1763 | base = rm; |
| 1764 | |
| 1765 | if (base == 4) |
| 1766 | { |
| 1767 | havesib = 1; |
| 1768 | FETCH_DATA (the_info, codep + 1); |
| 1769 | scale = (*codep >> 6) & 3; |
| 1770 | index = (*codep >> 3) & 7; |
| 1771 | base = *codep & 7; |
| 1772 | codep++; |
| 1773 | } |
| 1774 | |
| 1775 | switch (mod) |
| 1776 | { |
| 1777 | case 0: |
| 1778 | if (base == 5) |
| 1779 | { |
| 1780 | havebase = 0; |
| 1781 | disp = get32 (); |
| 1782 | } |
| 1783 | break; |
| 1784 | case 1: |
| 1785 | FETCH_DATA (the_info, codep + 1); |
| 1786 | disp = *codep++; |
| 1787 | if ((disp & 0x80) != 0) |
| 1788 | disp -= 0x100; |
| 1789 | break; |
| 1790 | case 2: |
| 1791 | disp = get32 (); |
| 1792 | break; |
| 1793 | } |
| 1794 | |
| 1795 | if (mod != 0 || base == 5) |
| 1796 | { |
| 1797 | sprintf (scratchbuf, "0x%x", disp); |
| 1798 | oappend (scratchbuf); |
| 1799 | } |
| 1800 | |
| 1801 | if (havebase || (havesib && (index != 4 || scale != 0))) |
| 1802 | { |
| 1803 | oappend ("("); |
| 1804 | if (havebase) |
| 1805 | oappend (names32[base]); |
| 1806 | if (havesib) |
| 1807 | { |
| 1808 | if (index != 4) |
| 1809 | { |
| 1810 | sprintf (scratchbuf, ",%s", names32[index]); |
| 1811 | oappend (scratchbuf); |
| 1812 | } |
| 1813 | sprintf (scratchbuf, ",%d", 1 << scale); |
| 1814 | oappend (scratchbuf); |
| 1815 | } |
| 1816 | oappend (")"); |
| 1817 | } |
| 1818 | } |
| 1819 | else |
| 1820 | { /* 16 bit address mode */ |
| 1821 | switch (mod) |
| 1822 | { |
| 1823 | case 0: |
| 1824 | if (rm == 6) |
| 1825 | { |
| 1826 | disp = get16 (); |
| 1827 | if ((disp & 0x8000) != 0) |
| 1828 | disp -= 0x10000; |
| 1829 | } |
| 1830 | break; |
| 1831 | case 1: |
| 1832 | FETCH_DATA (the_info, codep + 1); |
| 1833 | disp = *codep++; |
| 1834 | if ((disp & 0x80) != 0) |
| 1835 | disp -= 0x100; |
| 1836 | break; |
| 1837 | case 2: |
| 1838 | disp = get16 (); |
| 1839 | if ((disp & 0x8000) != 0) |
| 1840 | disp -= 0x10000; |
| 1841 | break; |
| 1842 | } |
| 1843 | |
| 1844 | if (mod != 0 || rm == 6) |
| 1845 | { |
| 1846 | sprintf (scratchbuf, "0x%x", disp); |
| 1847 | oappend (scratchbuf); |
| 1848 | } |
| 1849 | |
| 1850 | if (mod != 0 || rm != 6) |
| 1851 | { |
| 1852 | oappend ("("); |
| 1853 | oappend (index16[rm]); |
| 1854 | oappend (")"); |
| 1855 | } |
| 1856 | } |
| 1857 | return 0; |
| 1858 | } |
| 1859 | |
| 1860 | static int |
| 1861 | OP_G (bytemode, aflag, dflag) |
| 1862 | int bytemode; |
| 1863 | int aflag; |
| 1864 | int dflag; |
| 1865 | { |
| 1866 | switch (bytemode) |
| 1867 | { |
| 1868 | case b_mode: |
| 1869 | oappend (names8[reg]); |
| 1870 | break; |
| 1871 | case w_mode: |
| 1872 | oappend (names16[reg]); |
| 1873 | break; |
| 1874 | case d_mode: |
| 1875 | oappend (names32[reg]); |
| 1876 | break; |
| 1877 | case v_mode: |
| 1878 | if (dflag) |
| 1879 | oappend (names32[reg]); |
| 1880 | else |
| 1881 | oappend (names16[reg]); |
| 1882 | break; |
| 1883 | default: |
| 1884 | oappend ("<internal disassembler error>"); |
| 1885 | break; |
| 1886 | } |
| 1887 | return (0); |
| 1888 | } |
| 1889 | |
| 1890 | static int |
| 1891 | get32 () |
| 1892 | { |
| 1893 | int x = 0; |
| 1894 | |
| 1895 | FETCH_DATA (the_info, codep + 4); |
| 1896 | x = *codep++ & 0xff; |
| 1897 | x |= (*codep++ & 0xff) << 8; |
| 1898 | x |= (*codep++ & 0xff) << 16; |
| 1899 | x |= (*codep++ & 0xff) << 24; |
| 1900 | return (x); |
| 1901 | } |
| 1902 | |
| 1903 | static int |
| 1904 | get16 () |
| 1905 | { |
| 1906 | int x = 0; |
| 1907 | |
| 1908 | FETCH_DATA (the_info, codep + 2); |
| 1909 | x = *codep++ & 0xff; |
| 1910 | x |= (*codep++ & 0xff) << 8; |
| 1911 | return (x); |
| 1912 | } |
| 1913 | |
| 1914 | static void |
| 1915 | set_op (op) |
| 1916 | int op; |
| 1917 | { |
| 1918 | op_index[op_ad] = op_ad; |
| 1919 | op_address[op_ad] = op; |
| 1920 | } |
| 1921 | |
| 1922 | static int |
| 1923 | OP_REG (code, aflag, dflag) |
| 1924 | int code; |
| 1925 | int aflag; |
| 1926 | int dflag; |
| 1927 | { |
| 1928 | char *s; |
| 1929 | |
| 1930 | switch (code) |
| 1931 | { |
| 1932 | case indir_dx_reg: s = "(%dx)"; break; |
| 1933 | case ax_reg: case cx_reg: case dx_reg: case bx_reg: |
| 1934 | case sp_reg: case bp_reg: case si_reg: case di_reg: |
| 1935 | s = names16[code - ax_reg]; |
| 1936 | break; |
| 1937 | case es_reg: case ss_reg: case cs_reg: |
| 1938 | case ds_reg: case fs_reg: case gs_reg: |
| 1939 | s = names_seg[code - es_reg]; |
| 1940 | break; |
| 1941 | case al_reg: case ah_reg: case cl_reg: case ch_reg: |
| 1942 | case dl_reg: case dh_reg: case bl_reg: case bh_reg: |
| 1943 | s = names8[code - al_reg]; |
| 1944 | break; |
| 1945 | case eAX_reg: case eCX_reg: case eDX_reg: case eBX_reg: |
| 1946 | case eSP_reg: case eBP_reg: case eSI_reg: case eDI_reg: |
| 1947 | if (dflag) |
| 1948 | s = names32[code - eAX_reg]; |
| 1949 | else |
| 1950 | s = names16[code - eAX_reg]; |
| 1951 | break; |
| 1952 | default: |
| 1953 | s = "<internal disassembler error>"; |
| 1954 | break; |
| 1955 | } |
| 1956 | oappend (s); |
| 1957 | return (0); |
| 1958 | } |
| 1959 | |
| 1960 | static int |
| 1961 | OP_I (bytemode, aflag, dflag) |
| 1962 | int bytemode; |
| 1963 | int aflag; |
| 1964 | int dflag; |
| 1965 | { |
| 1966 | int op; |
| 1967 | |
| 1968 | switch (bytemode) |
| 1969 | { |
| 1970 | case b_mode: |
| 1971 | FETCH_DATA (the_info, codep + 1); |
| 1972 | op = *codep++ & 0xff; |
| 1973 | break; |
| 1974 | case v_mode: |
| 1975 | if (dflag) |
| 1976 | op = get32 (); |
| 1977 | else |
| 1978 | op = get16 (); |
| 1979 | break; |
| 1980 | case w_mode: |
| 1981 | op = get16 (); |
| 1982 | break; |
| 1983 | default: |
| 1984 | oappend ("<internal disassembler error>"); |
| 1985 | return (0); |
| 1986 | } |
| 1987 | sprintf (scratchbuf, "$0x%x", op); |
| 1988 | oappend (scratchbuf); |
| 1989 | return (0); |
| 1990 | } |
| 1991 | |
| 1992 | static int |
| 1993 | OP_sI (bytemode, aflag, dflag) |
| 1994 | int bytemode; |
| 1995 | int aflag; |
| 1996 | int dflag; |
| 1997 | { |
| 1998 | int op; |
| 1999 | |
| 2000 | switch (bytemode) |
| 2001 | { |
| 2002 | case b_mode: |
| 2003 | FETCH_DATA (the_info, codep + 1); |
| 2004 | op = *codep++; |
| 2005 | if ((op & 0x80) != 0) |
| 2006 | op -= 0x100; |
| 2007 | break; |
| 2008 | case v_mode: |
| 2009 | if (dflag) |
| 2010 | op = get32 (); |
| 2011 | else |
| 2012 | { |
| 2013 | op = get16(); |
| 2014 | if ((op & 0x8000) != 0) |
| 2015 | op -= 0x10000; |
| 2016 | } |
| 2017 | break; |
| 2018 | case w_mode: |
| 2019 | op = get16 (); |
| 2020 | if ((op & 0x8000) != 0) |
| 2021 | op -= 0x10000; |
| 2022 | break; |
| 2023 | default: |
| 2024 | oappend ("<internal disassembler error>"); |
| 2025 | return (0); |
| 2026 | } |
| 2027 | sprintf (scratchbuf, "$0x%x", op); |
| 2028 | oappend (scratchbuf); |
| 2029 | return (0); |
| 2030 | } |
| 2031 | |
| 2032 | static int |
| 2033 | OP_J (bytemode, aflag, dflag) |
| 2034 | int bytemode; |
| 2035 | int aflag; |
| 2036 | int dflag; |
| 2037 | { |
| 2038 | int disp; |
| 2039 | int mask = -1; |
| 2040 | |
| 2041 | switch (bytemode) |
| 2042 | { |
| 2043 | case b_mode: |
| 2044 | FETCH_DATA (the_info, codep + 1); |
| 2045 | disp = *codep++; |
| 2046 | if ((disp & 0x80) != 0) |
| 2047 | disp -= 0x100; |
| 2048 | break; |
| 2049 | case v_mode: |
| 2050 | if (dflag) |
| 2051 | disp = get32 (); |
| 2052 | else |
| 2053 | { |
| 2054 | disp = get16 (); |
| 2055 | if ((disp & 0x8000) != 0) |
| 2056 | disp -= 0x10000; |
| 2057 | /* for some reason, a data16 prefix on a jump instruction |
| 2058 | means that the pc is masked to 16 bits after the |
| 2059 | displacement is added! */ |
| 2060 | mask = 0xffff; |
| 2061 | } |
| 2062 | break; |
| 2063 | default: |
| 2064 | oappend ("<internal disassembler error>"); |
| 2065 | return (0); |
| 2066 | } |
| 2067 | disp = (start_pc + codep - start_codep + disp) & mask; |
| 2068 | set_op (disp); |
| 2069 | sprintf (scratchbuf, "0x%x", disp); |
| 2070 | oappend (scratchbuf); |
| 2071 | return (0); |
| 2072 | } |
| 2073 | |
| 2074 | /* ARGSUSED */ |
| 2075 | static int |
| 2076 | OP_SEG (dummy, aflag, dflag) |
| 2077 | int dummy; |
| 2078 | int aflag; |
| 2079 | int dflag; |
| 2080 | { |
| 2081 | static char *sreg[] = { |
| 2082 | "%es","%cs","%ss","%ds","%fs","%gs","%?","%?", |
| 2083 | }; |
| 2084 | |
| 2085 | oappend (sreg[reg]); |
| 2086 | return (0); |
| 2087 | } |
| 2088 | |
| 2089 | static int |
| 2090 | OP_DIR (size, aflag, dflag) |
| 2091 | int size; |
| 2092 | int aflag; |
| 2093 | int dflag; |
| 2094 | { |
| 2095 | int seg, offset; |
| 2096 | |
| 2097 | switch (size) |
| 2098 | { |
| 2099 | case lptr: |
| 2100 | if (aflag) |
| 2101 | { |
| 2102 | offset = get32 (); |
| 2103 | seg = get16 (); |
| 2104 | } |
| 2105 | else |
| 2106 | { |
| 2107 | offset = get16 (); |
| 2108 | seg = get16 (); |
| 2109 | } |
| 2110 | sprintf (scratchbuf, "0x%x,0x%x", seg, offset); |
| 2111 | oappend (scratchbuf); |
| 2112 | break; |
| 2113 | case v_mode: |
| 2114 | if (aflag) |
| 2115 | offset = get32 (); |
| 2116 | else |
| 2117 | { |
| 2118 | offset = get16 (); |
| 2119 | if ((offset & 0x8000) != 0) |
| 2120 | offset -= 0x10000; |
| 2121 | } |
| 2122 | |
| 2123 | offset = start_pc + codep - start_codep + offset; |
| 2124 | set_op (offset); |
| 2125 | sprintf (scratchbuf, "0x%x", offset); |
| 2126 | oappend (scratchbuf); |
| 2127 | break; |
| 2128 | default: |
| 2129 | oappend ("<internal disassembler error>"); |
| 2130 | break; |
| 2131 | } |
| 2132 | return (0); |
| 2133 | } |
| 2134 | |
| 2135 | /* ARGSUSED */ |
| 2136 | static int |
| 2137 | OP_OFF (bytemode, aflag, dflag) |
| 2138 | int bytemode; |
| 2139 | int aflag; |
| 2140 | int dflag; |
| 2141 | { |
| 2142 | int off; |
| 2143 | |
| 2144 | append_prefix (); |
| 2145 | |
| 2146 | if (aflag) |
| 2147 | off = get32 (); |
| 2148 | else |
| 2149 | off = get16 (); |
| 2150 | |
| 2151 | sprintf (scratchbuf, "0x%x", off); |
| 2152 | oappend (scratchbuf); |
| 2153 | return (0); |
| 2154 | } |
| 2155 | |
| 2156 | /* ARGSUSED */ |
| 2157 | static int |
| 2158 | OP_ESDI (dummy, aflag, dflag) |
| 2159 | int dummy; |
| 2160 | int aflag; |
| 2161 | int dflag; |
| 2162 | { |
| 2163 | oappend ("%es:("); |
| 2164 | oappend (aflag ? "%edi" : "%di"); |
| 2165 | oappend (")"); |
| 2166 | return (0); |
| 2167 | } |
| 2168 | |
| 2169 | /* ARGSUSED */ |
| 2170 | static int |
| 2171 | OP_DSSI (dummy, aflag, dflag) |
| 2172 | int dummy; |
| 2173 | int aflag; |
| 2174 | int dflag; |
| 2175 | { |
| 2176 | if ((prefixes |
| 2177 | & (PREFIX_CS |
| 2178 | | PREFIX_DS |
| 2179 | | PREFIX_SS |
| 2180 | | PREFIX_ES |
| 2181 | | PREFIX_FS |
| 2182 | | PREFIX_GS)) == 0) |
| 2183 | prefixes |= PREFIX_DS; |
| 2184 | append_prefix (); |
| 2185 | oappend ("("); |
| 2186 | oappend (aflag ? "%esi" : "%si"); |
| 2187 | oappend (")"); |
| 2188 | return (0); |
| 2189 | } |
| 2190 | |
| 2191 | #if 0 |
| 2192 | /* Not used. */ |
| 2193 | |
| 2194 | /* ARGSUSED */ |
| 2195 | static int |
| 2196 | OP_ONE (dummy, aflag, dflag) |
| 2197 | int dummy; |
| 2198 | int aflag; |
| 2199 | int dflag; |
| 2200 | { |
| 2201 | oappend ("1"); |
| 2202 | return (0); |
| 2203 | } |
| 2204 | |
| 2205 | #endif |
| 2206 | |
| 2207 | /* ARGSUSED */ |
| 2208 | static int |
| 2209 | OP_C (dummy, aflag, dflag) |
| 2210 | int dummy; |
| 2211 | int aflag; |
| 2212 | int dflag; |
| 2213 | { |
| 2214 | codep++; /* skip mod/rm */ |
| 2215 | sprintf (scratchbuf, "%%cr%d", reg); |
| 2216 | oappend (scratchbuf); |
| 2217 | return (0); |
| 2218 | } |
| 2219 | |
| 2220 | /* ARGSUSED */ |
| 2221 | static int |
| 2222 | OP_D (dummy, aflag, dflag) |
| 2223 | int dummy; |
| 2224 | int aflag; |
| 2225 | int dflag; |
| 2226 | { |
| 2227 | codep++; /* skip mod/rm */ |
| 2228 | sprintf (scratchbuf, "%%db%d", reg); |
| 2229 | oappend (scratchbuf); |
| 2230 | return (0); |
| 2231 | } |
| 2232 | |
| 2233 | /* ARGSUSED */ |
| 2234 | static int |
| 2235 | OP_T (dummy, aflag, dflag) |
| 2236 | int dummy; |
| 2237 | int aflag; |
| 2238 | int dflag; |
| 2239 | { |
| 2240 | codep++; /* skip mod/rm */ |
| 2241 | sprintf (scratchbuf, "%%tr%d", reg); |
| 2242 | oappend (scratchbuf); |
| 2243 | return (0); |
| 2244 | } |
| 2245 | |
| 2246 | static int |
| 2247 | OP_rm (bytemode, aflag, dflag) |
| 2248 | int bytemode; |
| 2249 | int aflag; |
| 2250 | int dflag; |
| 2251 | { |
| 2252 | switch (bytemode) |
| 2253 | { |
| 2254 | case d_mode: |
| 2255 | oappend (names32[rm]); |
| 2256 | break; |
| 2257 | case w_mode: |
| 2258 | oappend (names16[rm]); |
| 2259 | break; |
| 2260 | } |
| 2261 | return (0); |
| 2262 | } |
| 2263 | |
| 2264 | static int |
| 2265 | OP_MMX (bytemode, aflag, dflag) |
| 2266 | int bytemode; |
| 2267 | int aflag; |
| 2268 | int dflag; |
| 2269 | { |
| 2270 | sprintf (scratchbuf, "%%mm%d", reg); |
| 2271 | oappend (scratchbuf); |
| 2272 | return 0; |
| 2273 | } |
| 2274 | |
| 2275 | static int |
| 2276 | OP_EM (bytemode, aflag, dflag) |
| 2277 | int bytemode; |
| 2278 | int aflag; |
| 2279 | int dflag; |
| 2280 | { |
| 2281 | if (mod != 3) |
| 2282 | return OP_E (bytemode, aflag, dflag); |
| 2283 | |
| 2284 | codep++; |
| 2285 | sprintf (scratchbuf, "%%mm%d", rm); |
| 2286 | oappend (scratchbuf); |
| 2287 | return 0; |
| 2288 | } |
| 2289 | |
| 2290 | static int |
| 2291 | OP_MS (bytemode, aflag, dflag) |
| 2292 | int bytemode; |
| 2293 | int aflag; |
| 2294 | int dflag; |
| 2295 | { |
| 2296 | ++codep; |
| 2297 | sprintf (scratchbuf, "%%mm%d", rm); |
| 2298 | oappend (scratchbuf); |
| 2299 | return 0; |
| 2300 | } |