1 /*- 2 * Mach Operating System 3 * Copyright (c) 1991,1990 Carnegie Mellon University 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify and distribute this software and its 7 * documentation is hereby granted, provided that both the copyright 8 * notice and this permission notice appear in all copies of the 9 * software, derivative works or modified versions, and any portions 10 * thereof, and that both notices appear in supporting documentation. 11 * 12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS 13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 15 * 16 * Carnegie Mellon requests users of this software to return to 17 * 18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19 * School of Computer Science 20 * Carnegie Mellon University 21 * Pittsburgh PA 15213-3890 22 * 23 * any improvements or extensions that they make and grant Carnegie the 24 * rights to redistribute these changes. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 /* 31 * Instruction disassembler. 32 */ 33 #include <sys/param.h> 34 #include <sys/libkern.h> 35 36 #include <ddb/ddb.h> 37 #include <ddb/db_access.h> 38 #include <ddb/db_sym.h> 39 40 /* 41 * Size attributes 42 */ 43 #define BYTE 0 44 #define WORD 1 45 #define LONG 2 46 #define QUAD 3 47 #define SNGL 4 48 #define DBLR 5 49 #define EXTR 6 50 #define SDEP 7 51 #define ADEP 8 52 #define ESC 9 53 #define NONE 10 54 55 /* 56 * REX prefix and bits 57 */ 58 #define REX_B 1 59 #define REX_X 2 60 #define REX_R 4 61 #define REX_W 8 62 #define REX 0x40 63 64 /* 65 * Addressing modes 66 */ 67 #define E 1 /* general effective address */ 68 #define Eind 2 /* indirect address (jump, call) */ 69 #define Ew 3 /* address, word size */ 70 #define Eb 4 /* address, byte size */ 71 #define R 5 /* register, in 'reg' field */ 72 #define Rw 6 /* word register, in 'reg' field */ 73 #define Rq 39 /* quad register, in 'reg' field */ 74 #define Rv 40 /* register in 'r/m' field */ 75 #define Ri 7 /* register in instruction */ 76 #define S 8 /* segment reg, in 'reg' field */ 77 #define Si 9 /* segment reg, in instruction */ 78 #define A 10 /* accumulator */ 79 #define BX 11 /* (bx) */ 80 #define CL 12 /* cl, for shifts */ 81 #define DX 13 /* dx, for IO */ 82 #define SI 14 /* si */ 83 #define DI 15 /* di */ 84 #define CR 16 /* control register */ 85 #define DR 17 /* debug register */ 86 #define TR 18 /* test register */ 87 #define I 19 /* immediate, unsigned */ 88 #define Is 20 /* immediate, signed */ 89 #define Ib 21 /* byte immediate, unsigned */ 90 #define Ibs 22 /* byte immediate, signed */ 91 #define Iw 23 /* word immediate, unsigned */ 92 #define Ilq 24 /* long/quad immediate, unsigned */ 93 #define O 25 /* direct address */ 94 #define Db 26 /* byte displacement from EIP */ 95 #define Dl 27 /* long displacement from EIP */ 96 #define o1 28 /* constant 1 */ 97 #define o3 29 /* constant 3 */ 98 #define OS 30 /* immediate offset/segment */ 99 #define ST 31 /* FP stack top */ 100 #define STI 32 /* FP stack */ 101 #define X 33 /* extended FP op */ 102 #define XA 34 /* for 'fstcw %ax' */ 103 #define El 35 /* address, long/quad size */ 104 #define Ril 36 /* long register in instruction */ 105 #define Iba 37 /* byte immediate, don't print if 0xa */ 106 #define EL 38 /* address, explicitly long size */ 107 108 struct inst { 109 const char * i_name; /* name */ 110 short i_has_modrm; /* has regmodrm byte */ 111 short i_size; /* operand size */ 112 int i_mode; /* addressing modes */ 113 const void * i_extra; /* pointer to extra opcode table */ 114 }; 115 116 #define op1(x) (x) 117 #define op2(x,y) ((x)|((y)<<8)) 118 #define op3(x,y,z) ((x)|((y)<<8)|((z)<<16)) 119 120 struct finst { 121 const char * f_name; /* name for memory instruction */ 122 int f_size; /* size for memory instruction */ 123 int f_rrmode; /* mode for rr instruction */ 124 const void * f_rrname; /* name for rr instruction 125 (or pointer to table) */ 126 }; 127 128 static const struct inst db_inst_0f388x[] = { 129 /*80*/ { "", TRUE, SDEP, op2(E, Rq), "invept" }, 130 /*81*/ { "", TRUE, SDEP, op2(E, Rq), "invvpid" }, 131 /*82*/ { "", TRUE, SDEP, op2(E, Rq), "invpcid" }, 132 /*83*/ { "", FALSE, NONE, 0, 0 }, 133 /*84*/ { "", FALSE, NONE, 0, 0 }, 134 /*85*/ { "", FALSE, NONE, 0, 0 }, 135 /*86*/ { "", FALSE, NONE, 0, 0 }, 136 /*87*/ { "", FALSE, NONE, 0, 0 }, 137 138 /*88*/ { "", FALSE, NONE, 0, 0 }, 139 /*89*/ { "", FALSE, NONE, 0, 0 }, 140 /*8a*/ { "", FALSE, NONE, 0, 0 }, 141 /*8b*/ { "", FALSE, NONE, 0, 0 }, 142 /*8c*/ { "", FALSE, NONE, 0, 0 }, 143 /*8d*/ { "", FALSE, NONE, 0, 0 }, 144 /*8e*/ { "", FALSE, NONE, 0, 0 }, 145 /*8f*/ { "", FALSE, NONE, 0, 0 }, 146 }; 147 148 static const struct inst * const db_inst_0f38[] = { 149 0, 150 0, 151 0, 152 0, 153 0, 154 0, 155 0, 156 0, 157 db_inst_0f388x, 158 0, 159 0, 160 0, 161 0, 162 0, 163 0, 164 0 165 }; 166 167 static const char * const db_Grp6[] = { 168 "sldt", 169 "str", 170 "lldt", 171 "ltr", 172 "verr", 173 "verw", 174 "", 175 "" 176 }; 177 178 static const char * const db_Grp7[] = { 179 "sgdt", 180 "sidt", 181 "lgdt", 182 "lidt", 183 "smsw", 184 "", 185 "lmsw", 186 "invlpg" 187 }; 188 189 static const char * const db_Grp8[] = { 190 "", 191 "", 192 "", 193 "", 194 "bt", 195 "bts", 196 "btr", 197 "btc" 198 }; 199 200 static const char * const db_Grp9[] = { 201 "", 202 "cmpxchg8b", 203 "", 204 "", 205 "", 206 "", 207 "vmptrld", 208 "vmptrst" 209 }; 210 211 static const char * const db_Grp15[] = { 212 "fxsave", 213 "fxrstor", 214 "ldmxcsr", 215 "stmxcsr", 216 "xsave", 217 "xrstor", 218 "xsaveopt", 219 "clflush" 220 }; 221 222 static const char * const db_Grp15b[] = { 223 "", 224 "", 225 "", 226 "", 227 "", 228 "lfence", 229 "mfence", 230 "sfence" 231 }; 232 233 static const struct inst db_inst_0f0x[] = { 234 /*00*/ { "", TRUE, NONE, op1(Ew), db_Grp6 }, 235 /*01*/ { "", TRUE, NONE, op1(Ew), db_Grp7 }, 236 /*02*/ { "lar", TRUE, LONG, op2(E,R), 0 }, 237 /*03*/ { "lsl", TRUE, LONG, op2(E,R), 0 }, 238 /*04*/ { "", FALSE, NONE, 0, 0 }, 239 /*05*/ { "syscall",FALSE,NONE, 0, 0 }, 240 /*06*/ { "clts", FALSE, NONE, 0, 0 }, 241 /*07*/ { "sysret",FALSE, NONE, 0, 0 }, 242 243 /*08*/ { "invd", FALSE, NONE, 0, 0 }, 244 /*09*/ { "wbinvd",FALSE, NONE, 0, 0 }, 245 /*0a*/ { "", FALSE, NONE, 0, 0 }, 246 /*0b*/ { "", FALSE, NONE, 0, 0 }, 247 /*0c*/ { "", FALSE, NONE, 0, 0 }, 248 /*0d*/ { "", FALSE, NONE, 0, 0 }, 249 /*0e*/ { "", FALSE, NONE, 0, 0 }, 250 /*0f*/ { "", FALSE, NONE, 0, 0 }, 251 }; 252 253 static const struct inst db_inst_0f1x[] = { 254 /*10*/ { "", FALSE, NONE, 0, 0 }, 255 /*11*/ { "", FALSE, NONE, 0, 0 }, 256 /*12*/ { "", FALSE, NONE, 0, 0 }, 257 /*13*/ { "", FALSE, NONE, 0, 0 }, 258 /*14*/ { "", FALSE, NONE, 0, 0 }, 259 /*15*/ { "", FALSE, NONE, 0, 0 }, 260 /*16*/ { "", FALSE, NONE, 0, 0 }, 261 /*17*/ { "", FALSE, NONE, 0, 0 }, 262 263 /*18*/ { "", FALSE, NONE, 0, 0 }, 264 /*19*/ { "", FALSE, NONE, 0, 0 }, 265 /*1a*/ { "", FALSE, NONE, 0, 0 }, 266 /*1b*/ { "", FALSE, NONE, 0, 0 }, 267 /*1c*/ { "", FALSE, NONE, 0, 0 }, 268 /*1d*/ { "", FALSE, NONE, 0, 0 }, 269 /*1e*/ { "", FALSE, NONE, 0, 0 }, 270 /*1f*/ { "nopl", TRUE, SDEP, 0, "nopw" }, 271 }; 272 273 static const struct inst db_inst_0f2x[] = { 274 /*20*/ { "mov", TRUE, LONG, op2(CR,El), 0 }, 275 /*21*/ { "mov", TRUE, LONG, op2(DR,El), 0 }, 276 /*22*/ { "mov", TRUE, LONG, op2(El,CR), 0 }, 277 /*23*/ { "mov", TRUE, LONG, op2(El,DR), 0 }, 278 /*24*/ { "mov", TRUE, LONG, op2(TR,El), 0 }, 279 /*25*/ { "", FALSE, NONE, 0, 0 }, 280 /*26*/ { "mov", TRUE, LONG, op2(El,TR), 0 }, 281 /*27*/ { "", FALSE, NONE, 0, 0 }, 282 283 /*28*/ { "", FALSE, NONE, 0, 0 }, 284 /*29*/ { "", FALSE, NONE, 0, 0 }, 285 /*2a*/ { "", FALSE, NONE, 0, 0 }, 286 /*2b*/ { "", FALSE, NONE, 0, 0 }, 287 /*2c*/ { "", FALSE, NONE, 0, 0 }, 288 /*2d*/ { "", FALSE, NONE, 0, 0 }, 289 /*2e*/ { "", FALSE, NONE, 0, 0 }, 290 /*2f*/ { "", FALSE, NONE, 0, 0 }, 291 }; 292 293 static const struct inst db_inst_0f3x[] = { 294 /*30*/ { "wrmsr", FALSE, NONE, 0, 0 }, 295 /*31*/ { "rdtsc", FALSE, NONE, 0, 0 }, 296 /*32*/ { "rdmsr", FALSE, NONE, 0, 0 }, 297 /*33*/ { "rdpmc", FALSE, NONE, 0, 0 }, 298 /*34*/ { "sysenter",FALSE,NONE, 0, 0 }, 299 /*35*/ { "sysexit",FALSE,NONE, 0, 0 }, 300 /*36*/ { "", FALSE, NONE, 0, 0 }, 301 /*37*/ { "getsec",FALSE, NONE, 0, 0 }, 302 303 /*38*/ { "", FALSE, ESC, 0, db_inst_0f38 }, 304 /*39*/ { "", FALSE, NONE, 0, 0 }, 305 /*3a*/ { "", FALSE, NONE, 0, 0 }, 306 /*3b*/ { "", FALSE, NONE, 0, 0 }, 307 /*3c*/ { "", FALSE, NONE, 0, 0 }, 308 /*3d*/ { "", FALSE, NONE, 0, 0 }, 309 /*3e*/ { "", FALSE, NONE, 0, 0 }, 310 /*3f*/ { "", FALSE, NONE, 0, 0 }, 311 }; 312 313 static const struct inst db_inst_0f4x[] = { 314 /*40*/ { "cmovo", TRUE, NONE, op2(E, R), 0 }, 315 /*41*/ { "cmovno", TRUE, NONE, op2(E, R), 0 }, 316 /*42*/ { "cmovb", TRUE, NONE, op2(E, R), 0 }, 317 /*43*/ { "cmovnb", TRUE, NONE, op2(E, R), 0 }, 318 /*44*/ { "cmovz", TRUE, NONE, op2(E, R), 0 }, 319 /*45*/ { "cmovnz", TRUE, NONE, op2(E, R), 0 }, 320 /*46*/ { "cmovbe", TRUE, NONE, op2(E, R), 0 }, 321 /*47*/ { "cmovnbe",TRUE, NONE, op2(E, R), 0 }, 322 323 /*48*/ { "cmovs", TRUE, NONE, op2(E, R), 0 }, 324 /*49*/ { "cmovns", TRUE, NONE, op2(E, R), 0 }, 325 /*4a*/ { "cmovp", TRUE, NONE, op2(E, R), 0 }, 326 /*4b*/ { "cmovnp", TRUE, NONE, op2(E, R), 0 }, 327 /*4c*/ { "cmovl", TRUE, NONE, op2(E, R), 0 }, 328 /*4d*/ { "cmovnl", TRUE, NONE, op2(E, R), 0 }, 329 /*4e*/ { "cmovle", TRUE, NONE, op2(E, R), 0 }, 330 /*4f*/ { "cmovnle",TRUE, NONE, op2(E, R), 0 }, 331 }; 332 333 static const struct inst db_inst_0f7x[] = { 334 /*70*/ { "", FALSE, NONE, 0, 0 }, 335 /*71*/ { "", FALSE, NONE, 0, 0 }, 336 /*72*/ { "", FALSE, NONE, 0, 0 }, 337 /*73*/ { "", FALSE, NONE, 0, 0 }, 338 /*74*/ { "", FALSE, NONE, 0, 0 }, 339 /*75*/ { "", FALSE, NONE, 0, 0 }, 340 /*76*/ { "", FALSE, NONE, 0, 0 }, 341 /*77*/ { "", FALSE, NONE, 0, 0 }, 342 343 /*78*/ { "vmread", TRUE, NONE, op2(Rq, E), 0 }, 344 /*79*/ { "vmwrite",TRUE, NONE, op2(E, Rq), 0 }, 345 /*7a*/ { "", FALSE, NONE, 0, 0 }, 346 /*7b*/ { "", FALSE, NONE, 0, 0 }, 347 /*7c*/ { "", FALSE, NONE, 0, 0 }, 348 /*7d*/ { "", FALSE, NONE, 0, 0 }, 349 /*7e*/ { "", FALSE, NONE, 0, 0 }, 350 /*7f*/ { "", FALSE, NONE, 0, 0 }, 351 }; 352 353 static const struct inst db_inst_0f8x[] = { 354 /*80*/ { "jo", FALSE, NONE, op1(Dl), 0 }, 355 /*81*/ { "jno", FALSE, NONE, op1(Dl), 0 }, 356 /*82*/ { "jb", FALSE, NONE, op1(Dl), 0 }, 357 /*83*/ { "jnb", FALSE, NONE, op1(Dl), 0 }, 358 /*84*/ { "jz", FALSE, NONE, op1(Dl), 0 }, 359 /*85*/ { "jnz", FALSE, NONE, op1(Dl), 0 }, 360 /*86*/ { "jbe", FALSE, NONE, op1(Dl), 0 }, 361 /*87*/ { "jnbe", FALSE, NONE, op1(Dl), 0 }, 362 363 /*88*/ { "js", FALSE, NONE, op1(Dl), 0 }, 364 /*89*/ { "jns", FALSE, NONE, op1(Dl), 0 }, 365 /*8a*/ { "jp", FALSE, NONE, op1(Dl), 0 }, 366 /*8b*/ { "jnp", FALSE, NONE, op1(Dl), 0 }, 367 /*8c*/ { "jl", FALSE, NONE, op1(Dl), 0 }, 368 /*8d*/ { "jnl", FALSE, NONE, op1(Dl), 0 }, 369 /*8e*/ { "jle", FALSE, NONE, op1(Dl), 0 }, 370 /*8f*/ { "jnle", FALSE, NONE, op1(Dl), 0 }, 371 }; 372 373 static const struct inst db_inst_0f9x[] = { 374 /*90*/ { "seto", TRUE, NONE, op1(Eb), 0 }, 375 /*91*/ { "setno", TRUE, NONE, op1(Eb), 0 }, 376 /*92*/ { "setb", TRUE, NONE, op1(Eb), 0 }, 377 /*93*/ { "setnb", TRUE, NONE, op1(Eb), 0 }, 378 /*94*/ { "setz", TRUE, NONE, op1(Eb), 0 }, 379 /*95*/ { "setnz", TRUE, NONE, op1(Eb), 0 }, 380 /*96*/ { "setbe", TRUE, NONE, op1(Eb), 0 }, 381 /*97*/ { "setnbe",TRUE, NONE, op1(Eb), 0 }, 382 383 /*98*/ { "sets", TRUE, NONE, op1(Eb), 0 }, 384 /*99*/ { "setns", TRUE, NONE, op1(Eb), 0 }, 385 /*9a*/ { "setp", TRUE, NONE, op1(Eb), 0 }, 386 /*9b*/ { "setnp", TRUE, NONE, op1(Eb), 0 }, 387 /*9c*/ { "setl", TRUE, NONE, op1(Eb), 0 }, 388 /*9d*/ { "setnl", TRUE, NONE, op1(Eb), 0 }, 389 /*9e*/ { "setle", TRUE, NONE, op1(Eb), 0 }, 390 /*9f*/ { "setnle",TRUE, NONE, op1(Eb), 0 }, 391 }; 392 393 static const struct inst db_inst_0fax[] = { 394 /*a0*/ { "push", FALSE, NONE, op1(Si), 0 }, 395 /*a1*/ { "pop", FALSE, NONE, op1(Si), 0 }, 396 /*a2*/ { "cpuid", FALSE, NONE, 0, 0 }, 397 /*a3*/ { "bt", TRUE, LONG, op2(R,E), 0 }, 398 /*a4*/ { "shld", TRUE, LONG, op3(Ib,R,E), 0 }, 399 /*a5*/ { "shld", TRUE, LONG, op3(CL,R,E), 0 }, 400 /*a6*/ { "", FALSE, NONE, 0, 0 }, 401 /*a7*/ { "", FALSE, NONE, 0, 0 }, 402 403 /*a8*/ { "push", FALSE, NONE, op1(Si), 0 }, 404 /*a9*/ { "pop", FALSE, NONE, op1(Si), 0 }, 405 /*aa*/ { "rsm", FALSE, NONE, 0, 0 }, 406 /*ab*/ { "bts", TRUE, LONG, op2(R,E), 0 }, 407 /*ac*/ { "shrd", TRUE, LONG, op3(Ib,R,E), 0 }, 408 /*ad*/ { "shrd", TRUE, LONG, op3(CL,R,E), 0 }, 409 /*ae*/ { "", TRUE, LONG, op1(E), db_Grp15 }, 410 /*af*/ { "imul", TRUE, LONG, op2(E,R), 0 }, 411 }; 412 413 static const struct inst db_inst_0fbx[] = { 414 /*b0*/ { "cmpxchg",TRUE, BYTE, op2(R, E), 0 }, 415 /*b0*/ { "cmpxchg",TRUE, LONG, op2(R, E), 0 }, 416 /*b2*/ { "lss", TRUE, LONG, op2(E, R), 0 }, 417 /*b3*/ { "btr", TRUE, LONG, op2(R, E), 0 }, 418 /*b4*/ { "lfs", TRUE, LONG, op2(E, R), 0 }, 419 /*b5*/ { "lgs", TRUE, LONG, op2(E, R), 0 }, 420 /*b6*/ { "movzb", TRUE, LONG, op2(Eb, R), 0 }, 421 /*b7*/ { "movzw", TRUE, LONG, op2(Ew, R), 0 }, 422 423 /*b8*/ { "", FALSE, NONE, 0, 0 }, 424 /*b9*/ { "", FALSE, NONE, 0, 0 }, 425 /*ba*/ { "", TRUE, LONG, op2(Ib, E), db_Grp8 }, 426 /*bb*/ { "btc", TRUE, LONG, op2(R, E), 0 }, 427 /*bc*/ { "bsf", TRUE, LONG, op2(E, R), 0 }, 428 /*bd*/ { "bsr", TRUE, LONG, op2(E, R), 0 }, 429 /*be*/ { "movsb", TRUE, LONG, op2(Eb, R), 0 }, 430 /*bf*/ { "movsw", TRUE, LONG, op2(Ew, R), 0 }, 431 }; 432 433 static const struct inst db_inst_0fcx[] = { 434 /*c0*/ { "xadd", TRUE, BYTE, op2(R, E), 0 }, 435 /*c1*/ { "xadd", TRUE, LONG, op2(R, E), 0 }, 436 /*c2*/ { "", FALSE, NONE, 0, 0 }, 437 /*c3*/ { "", FALSE, NONE, 0, 0 }, 438 /*c4*/ { "", FALSE, NONE, 0, 0 }, 439 /*c5*/ { "", FALSE, NONE, 0, 0 }, 440 /*c6*/ { "", FALSE, NONE, 0, 0 }, 441 /*c7*/ { "", TRUE, NONE, op1(E), db_Grp9 }, 442 /*c8*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 443 /*c9*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 444 /*ca*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 445 /*cb*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 446 /*cc*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 447 /*cd*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 448 /*ce*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 449 /*cf*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 450 }; 451 452 static const struct inst * const db_inst_0f[] = { 453 db_inst_0f0x, 454 db_inst_0f1x, 455 db_inst_0f2x, 456 db_inst_0f3x, 457 db_inst_0f4x, 458 0, 459 0, 460 db_inst_0f7x, 461 db_inst_0f8x, 462 db_inst_0f9x, 463 db_inst_0fax, 464 db_inst_0fbx, 465 db_inst_0fcx, 466 0, 467 0, 468 0 469 }; 470 471 static const char * const db_Esc92[] = { 472 "fnop", "", "", "", "", "", "", "" 473 }; 474 static const char * const db_Esc94[] = { 475 "fchs", "fabs", "", "", "ftst", "fxam", "", "" 476 }; 477 static const char * const db_Esc95[] = { 478 "fld1", "fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz","" 479 }; 480 static const char * const db_Esc96[] = { 481 "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp", 482 "fincstp" 483 }; 484 static const char * const db_Esc97[] = { 485 "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos" 486 }; 487 488 static const char * const db_Esca5[] = { 489 "", "fucompp","", "", "", "", "", "" 490 }; 491 492 static const char * const db_Escb4[] = { 493 "fneni","fndisi", "fnclex","fninit","fsetpm", "", "", "" 494 }; 495 496 static const char * const db_Esce3[] = { 497 "", "fcompp","", "", "", "", "", "" 498 }; 499 500 static const char * const db_Escf4[] = { 501 "fnstsw","", "", "", "", "", "", "" 502 }; 503 504 static const struct finst db_Esc8[] = { 505 /*0*/ { "fadd", SNGL, op2(STI,ST), 0 }, 506 /*1*/ { "fmul", SNGL, op2(STI,ST), 0 }, 507 /*2*/ { "fcom", SNGL, op2(STI,ST), 0 }, 508 /*3*/ { "fcomp", SNGL, op2(STI,ST), 0 }, 509 /*4*/ { "fsub", SNGL, op2(STI,ST), 0 }, 510 /*5*/ { "fsubr", SNGL, op2(STI,ST), 0 }, 511 /*6*/ { "fdiv", SNGL, op2(STI,ST), 0 }, 512 /*7*/ { "fdivr", SNGL, op2(STI,ST), 0 }, 513 }; 514 515 static const struct finst db_Esc9[] = { 516 /*0*/ { "fld", SNGL, op1(STI), 0 }, 517 /*1*/ { "", NONE, op1(STI), "fxch" }, 518 /*2*/ { "fst", SNGL, op1(X), db_Esc92 }, 519 /*3*/ { "fstp", SNGL, 0, 0 }, 520 /*4*/ { "fldenv", NONE, op1(X), db_Esc94 }, 521 /*5*/ { "fldcw", NONE, op1(X), db_Esc95 }, 522 /*6*/ { "fnstenv",NONE, op1(X), db_Esc96 }, 523 /*7*/ { "fnstcw", NONE, op1(X), db_Esc97 }, 524 }; 525 526 static const struct finst db_Esca[] = { 527 /*0*/ { "fiadd", LONG, 0, 0 }, 528 /*1*/ { "fimul", LONG, 0, 0 }, 529 /*2*/ { "ficom", LONG, 0, 0 }, 530 /*3*/ { "ficomp", LONG, 0, 0 }, 531 /*4*/ { "fisub", LONG, 0, 0 }, 532 /*5*/ { "fisubr", LONG, op1(X), db_Esca5 }, 533 /*6*/ { "fidiv", LONG, 0, 0 }, 534 /*7*/ { "fidivr", LONG, 0, 0 } 535 }; 536 537 static const struct finst db_Escb[] = { 538 /*0*/ { "fild", LONG, 0, 0 }, 539 /*1*/ { "", NONE, 0, 0 }, 540 /*2*/ { "fist", LONG, 0, 0 }, 541 /*3*/ { "fistp", LONG, 0, 0 }, 542 /*4*/ { "", WORD, op1(X), db_Escb4 }, 543 /*5*/ { "fld", EXTR, 0, 0 }, 544 /*6*/ { "", WORD, 0, 0 }, 545 /*7*/ { "fstp", EXTR, 0, 0 }, 546 }; 547 548 static const struct finst db_Escc[] = { 549 /*0*/ { "fadd", DBLR, op2(ST,STI), 0 }, 550 /*1*/ { "fmul", DBLR, op2(ST,STI), 0 }, 551 /*2*/ { "fcom", DBLR, 0, 0 }, 552 /*3*/ { "fcomp", DBLR, 0, 0 }, 553 /*4*/ { "fsub", DBLR, op2(ST,STI), "fsubr" }, 554 /*5*/ { "fsubr", DBLR, op2(ST,STI), "fsub" }, 555 /*6*/ { "fdiv", DBLR, op2(ST,STI), "fdivr" }, 556 /*7*/ { "fdivr", DBLR, op2(ST,STI), "fdiv" }, 557 }; 558 559 static const struct finst db_Escd[] = { 560 /*0*/ { "fld", DBLR, op1(STI), "ffree" }, 561 /*1*/ { "", NONE, 0, 0 }, 562 /*2*/ { "fst", DBLR, op1(STI), 0 }, 563 /*3*/ { "fstp", DBLR, op1(STI), 0 }, 564 /*4*/ { "frstor", NONE, op1(STI), "fucom" }, 565 /*5*/ { "", NONE, op1(STI), "fucomp" }, 566 /*6*/ { "fnsave", NONE, 0, 0 }, 567 /*7*/ { "fnstsw", NONE, 0, 0 }, 568 }; 569 570 static const struct finst db_Esce[] = { 571 /*0*/ { "fiadd", WORD, op2(ST,STI), "faddp" }, 572 /*1*/ { "fimul", WORD, op2(ST,STI), "fmulp" }, 573 /*2*/ { "ficom", WORD, 0, 0 }, 574 /*3*/ { "ficomp", WORD, op1(X), db_Esce3 }, 575 /*4*/ { "fisub", WORD, op2(ST,STI), "fsubrp" }, 576 /*5*/ { "fisubr", WORD, op2(ST,STI), "fsubp" }, 577 /*6*/ { "fidiv", WORD, op2(ST,STI), "fdivrp" }, 578 /*7*/ { "fidivr", WORD, op2(ST,STI), "fdivp" }, 579 }; 580 581 static const struct finst db_Escf[] = { 582 /*0*/ { "fild", WORD, 0, 0 }, 583 /*1*/ { "", NONE, 0, 0 }, 584 /*2*/ { "fist", WORD, 0, 0 }, 585 /*3*/ { "fistp", WORD, 0, 0 }, 586 /*4*/ { "fbld", NONE, op1(XA), db_Escf4 }, 587 /*5*/ { "fild", QUAD, 0, 0 }, 588 /*6*/ { "fbstp", NONE, 0, 0 }, 589 /*7*/ { "fistp", QUAD, 0, 0 }, 590 }; 591 592 static const struct finst * const db_Esc_inst[] = { 593 db_Esc8, db_Esc9, db_Esca, db_Escb, 594 db_Escc, db_Escd, db_Esce, db_Escf 595 }; 596 597 static const char * const db_Grp1[] = { 598 "add", 599 "or", 600 "adc", 601 "sbb", 602 "and", 603 "sub", 604 "xor", 605 "cmp" 606 }; 607 608 static const char * const db_Grp2[] = { 609 "rol", 610 "ror", 611 "rcl", 612 "rcr", 613 "shl", 614 "shr", 615 "shl", 616 "sar" 617 }; 618 619 static const struct inst db_Grp3[] = { 620 { "test", TRUE, NONE, op2(I,E), 0 }, 621 { "test", TRUE, NONE, op2(I,E), 0 }, 622 { "not", TRUE, NONE, op1(E), 0 }, 623 { "neg", TRUE, NONE, op1(E), 0 }, 624 { "mul", TRUE, NONE, op2(E,A), 0 }, 625 { "imul", TRUE, NONE, op2(E,A), 0 }, 626 { "div", TRUE, NONE, op2(E,A), 0 }, 627 { "idiv", TRUE, NONE, op2(E,A), 0 }, 628 }; 629 630 static const struct inst db_Grp4[] = { 631 { "inc", TRUE, BYTE, op1(E), 0 }, 632 { "dec", TRUE, BYTE, op1(E), 0 }, 633 { "", TRUE, NONE, 0, 0 }, 634 { "", TRUE, NONE, 0, 0 }, 635 { "", TRUE, NONE, 0, 0 }, 636 { "", TRUE, NONE, 0, 0 }, 637 { "", TRUE, NONE, 0, 0 }, 638 { "", TRUE, NONE, 0, 0 } 639 }; 640 641 static const struct inst db_Grp5[] = { 642 { "inc", TRUE, LONG, op1(E), 0 }, 643 { "dec", TRUE, LONG, op1(E), 0 }, 644 { "call", TRUE, LONG, op1(Eind),0 }, 645 { "lcall", TRUE, LONG, op1(Eind),0 }, 646 { "jmp", TRUE, LONG, op1(Eind),0 }, 647 { "ljmp", TRUE, LONG, op1(Eind),0 }, 648 { "push", TRUE, LONG, op1(E), 0 }, 649 { "", TRUE, NONE, 0, 0 } 650 }; 651 652 static const struct inst db_Grp9b[] = { 653 { "", TRUE, NONE, 0, 0 }, 654 { "", TRUE, NONE, 0, 0 }, 655 { "", TRUE, NONE, 0, 0 }, 656 { "", TRUE, NONE, 0, 0 }, 657 { "", TRUE, NONE, 0, 0 }, 658 { "", TRUE, NONE, 0, 0 }, 659 { "rdrand",TRUE, LONG, op1(Rv), 0 }, 660 { "rdseed",TRUE, LONG, op1(Rv), 0 } 661 }; 662 663 static const struct inst db_inst_table[256] = { 664 /*00*/ { "add", TRUE, BYTE, op2(R, E), 0 }, 665 /*01*/ { "add", TRUE, LONG, op2(R, E), 0 }, 666 /*02*/ { "add", TRUE, BYTE, op2(E, R), 0 }, 667 /*03*/ { "add", TRUE, LONG, op2(E, R), 0 }, 668 /*04*/ { "add", FALSE, BYTE, op2(I, A), 0 }, 669 /*05*/ { "add", FALSE, LONG, op2(Is, A), 0 }, 670 /*06*/ { "push", FALSE, NONE, op1(Si), 0 }, 671 /*07*/ { "pop", FALSE, NONE, op1(Si), 0 }, 672 673 /*08*/ { "or", TRUE, BYTE, op2(R, E), 0 }, 674 /*09*/ { "or", TRUE, LONG, op2(R, E), 0 }, 675 /*0a*/ { "or", TRUE, BYTE, op2(E, R), 0 }, 676 /*0b*/ { "or", TRUE, LONG, op2(E, R), 0 }, 677 /*0c*/ { "or", FALSE, BYTE, op2(I, A), 0 }, 678 /*0d*/ { "or", FALSE, LONG, op2(I, A), 0 }, 679 /*0e*/ { "push", FALSE, NONE, op1(Si), 0 }, 680 /*0f*/ { "", FALSE, ESC, 0, db_inst_0f }, 681 682 /*10*/ { "adc", TRUE, BYTE, op2(R, E), 0 }, 683 /*11*/ { "adc", TRUE, LONG, op2(R, E), 0 }, 684 /*12*/ { "adc", TRUE, BYTE, op2(E, R), 0 }, 685 /*13*/ { "adc", TRUE, LONG, op2(E, R), 0 }, 686 /*14*/ { "adc", FALSE, BYTE, op2(I, A), 0 }, 687 /*15*/ { "adc", FALSE, LONG, op2(Is, A), 0 }, 688 /*16*/ { "push", FALSE, NONE, op1(Si), 0 }, 689 /*17*/ { "pop", FALSE, NONE, op1(Si), 0 }, 690 691 /*18*/ { "sbb", TRUE, BYTE, op2(R, E), 0 }, 692 /*19*/ { "sbb", TRUE, LONG, op2(R, E), 0 }, 693 /*1a*/ { "sbb", TRUE, BYTE, op2(E, R), 0 }, 694 /*1b*/ { "sbb", TRUE, LONG, op2(E, R), 0 }, 695 /*1c*/ { "sbb", FALSE, BYTE, op2(I, A), 0 }, 696 /*1d*/ { "sbb", FALSE, LONG, op2(Is, A), 0 }, 697 /*1e*/ { "push", FALSE, NONE, op1(Si), 0 }, 698 /*1f*/ { "pop", FALSE, NONE, op1(Si), 0 }, 699 700 /*20*/ { "and", TRUE, BYTE, op2(R, E), 0 }, 701 /*21*/ { "and", TRUE, LONG, op2(R, E), 0 }, 702 /*22*/ { "and", TRUE, BYTE, op2(E, R), 0 }, 703 /*23*/ { "and", TRUE, LONG, op2(E, R), 0 }, 704 /*24*/ { "and", FALSE, BYTE, op2(I, A), 0 }, 705 /*25*/ { "and", FALSE, LONG, op2(I, A), 0 }, 706 /*26*/ { "", FALSE, NONE, 0, 0 }, 707 /*27*/ { "daa", FALSE, NONE, 0, 0 }, 708 709 /*28*/ { "sub", TRUE, BYTE, op2(R, E), 0 }, 710 /*29*/ { "sub", TRUE, LONG, op2(R, E), 0 }, 711 /*2a*/ { "sub", TRUE, BYTE, op2(E, R), 0 }, 712 /*2b*/ { "sub", TRUE, LONG, op2(E, R), 0 }, 713 /*2c*/ { "sub", FALSE, BYTE, op2(I, A), 0 }, 714 /*2d*/ { "sub", FALSE, LONG, op2(Is, A), 0 }, 715 /*2e*/ { "", FALSE, NONE, 0, 0 }, 716 /*2f*/ { "das", FALSE, NONE, 0, 0 }, 717 718 /*30*/ { "xor", TRUE, BYTE, op2(R, E), 0 }, 719 /*31*/ { "xor", TRUE, LONG, op2(R, E), 0 }, 720 /*32*/ { "xor", TRUE, BYTE, op2(E, R), 0 }, 721 /*33*/ { "xor", TRUE, LONG, op2(E, R), 0 }, 722 /*34*/ { "xor", FALSE, BYTE, op2(I, A), 0 }, 723 /*35*/ { "xor", FALSE, LONG, op2(I, A), 0 }, 724 /*36*/ { "", FALSE, NONE, 0, 0 }, 725 /*37*/ { "aaa", FALSE, NONE, 0, 0 }, 726 727 /*38*/ { "cmp", TRUE, BYTE, op2(R, E), 0 }, 728 /*39*/ { "cmp", TRUE, LONG, op2(R, E), 0 }, 729 /*3a*/ { "cmp", TRUE, BYTE, op2(E, R), 0 }, 730 /*3b*/ { "cmp", TRUE, LONG, op2(E, R), 0 }, 731 /*3c*/ { "cmp", FALSE, BYTE, op2(I, A), 0 }, 732 /*3d*/ { "cmp", FALSE, LONG, op2(Is, A), 0 }, 733 /*3e*/ { "", FALSE, NONE, 0, 0 }, 734 /*3f*/ { "aas", FALSE, NONE, 0, 0 }, 735 736 /*40*/ { "rex", FALSE, NONE, 0, 0 }, 737 /*41*/ { "rex.b", FALSE, NONE, 0, 0 }, 738 /*42*/ { "rex.x", FALSE, NONE, 0, 0 }, 739 /*43*/ { "rex.xb", FALSE, NONE, 0, 0 }, 740 /*44*/ { "rex.r", FALSE, NONE, 0, 0 }, 741 /*45*/ { "rex.rb", FALSE, NONE, 0, 0 }, 742 /*46*/ { "rex.rx", FALSE, NONE, 0, 0 }, 743 /*47*/ { "rex.rxb", FALSE, NONE, 0, 0 }, 744 745 /*48*/ { "rex.w", FALSE, NONE, 0, 0 }, 746 /*49*/ { "rex.wb", FALSE, NONE, 0, 0 }, 747 /*4a*/ { "rex.wx", FALSE, NONE, 0, 0 }, 748 /*4b*/ { "rex.wxb", FALSE, NONE, 0, 0 }, 749 /*4c*/ { "rex.wr", FALSE, NONE, 0, 0 }, 750 /*4d*/ { "rex.wrb", FALSE, NONE, 0, 0 }, 751 /*4e*/ { "rex.wrx", FALSE, NONE, 0, 0 }, 752 /*4f*/ { "rex.wrxb", FALSE, NONE, 0, 0 }, 753 754 /*50*/ { "push", FALSE, LONG, op1(Ri), 0 }, 755 /*51*/ { "push", FALSE, LONG, op1(Ri), 0 }, 756 /*52*/ { "push", FALSE, LONG, op1(Ri), 0 }, 757 /*53*/ { "push", FALSE, LONG, op1(Ri), 0 }, 758 /*54*/ { "push", FALSE, LONG, op1(Ri), 0 }, 759 /*55*/ { "push", FALSE, LONG, op1(Ri), 0 }, 760 /*56*/ { "push", FALSE, LONG, op1(Ri), 0 }, 761 /*57*/ { "push", FALSE, LONG, op1(Ri), 0 }, 762 763 /*58*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 764 /*59*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 765 /*5a*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 766 /*5b*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 767 /*5c*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 768 /*5d*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 769 /*5e*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 770 /*5f*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 771 772 /*60*/ { "pusha", FALSE, LONG, 0, 0 }, 773 /*61*/ { "popa", FALSE, LONG, 0, 0 }, 774 /*62*/ { "bound", TRUE, LONG, op2(E, R), 0 }, 775 /*63*/ { "movslq", TRUE, NONE, op2(EL,R), 0 }, 776 777 /*64*/ { "", FALSE, NONE, 0, 0 }, 778 /*65*/ { "", FALSE, NONE, 0, 0 }, 779 /*66*/ { "", FALSE, NONE, 0, 0 }, 780 /*67*/ { "", FALSE, NONE, 0, 0 }, 781 782 /*68*/ { "push", FALSE, LONG, op1(I), 0 }, 783 /*69*/ { "imul", TRUE, LONG, op3(I,E,R), 0 }, 784 /*6a*/ { "push", FALSE, LONG, op1(Ibs), 0 }, 785 /*6b*/ { "imul", TRUE, LONG, op3(Ibs,E,R),0 }, 786 /*6c*/ { "ins", FALSE, BYTE, op2(DX, DI), 0 }, 787 /*6d*/ { "ins", FALSE, LONG, op2(DX, DI), 0 }, 788 /*6e*/ { "outs", FALSE, BYTE, op2(SI, DX), 0 }, 789 /*6f*/ { "outs", FALSE, LONG, op2(SI, DX), 0 }, 790 791 /*70*/ { "jo", FALSE, NONE, op1(Db), 0 }, 792 /*71*/ { "jno", FALSE, NONE, op1(Db), 0 }, 793 /*72*/ { "jb", FALSE, NONE, op1(Db), 0 }, 794 /*73*/ { "jnb", FALSE, NONE, op1(Db), 0 }, 795 /*74*/ { "jz", FALSE, NONE, op1(Db), 0 }, 796 /*75*/ { "jnz", FALSE, NONE, op1(Db), 0 }, 797 /*76*/ { "jbe", FALSE, NONE, op1(Db), 0 }, 798 /*77*/ { "jnbe", FALSE, NONE, op1(Db), 0 }, 799 800 /*78*/ { "js", FALSE, NONE, op1(Db), 0 }, 801 /*79*/ { "jns", FALSE, NONE, op1(Db), 0 }, 802 /*7a*/ { "jp", FALSE, NONE, op1(Db), 0 }, 803 /*7b*/ { "jnp", FALSE, NONE, op1(Db), 0 }, 804 /*7c*/ { "jl", FALSE, NONE, op1(Db), 0 }, 805 /*7d*/ { "jnl", FALSE, NONE, op1(Db), 0 }, 806 /*7e*/ { "jle", FALSE, NONE, op1(Db), 0 }, 807 /*7f*/ { "jnle", FALSE, NONE, op1(Db), 0 }, 808 809 /*80*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 }, 810 /*81*/ { "", TRUE, LONG, op2(I, E), db_Grp1 }, 811 /*82*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 }, 812 /*83*/ { "", TRUE, LONG, op2(Ibs,E), db_Grp1 }, 813 /*84*/ { "test", TRUE, BYTE, op2(R, E), 0 }, 814 /*85*/ { "test", TRUE, LONG, op2(R, E), 0 }, 815 /*86*/ { "xchg", TRUE, BYTE, op2(R, E), 0 }, 816 /*87*/ { "xchg", TRUE, LONG, op2(R, E), 0 }, 817 818 /*88*/ { "mov", TRUE, BYTE, op2(R, E), 0 }, 819 /*89*/ { "mov", TRUE, LONG, op2(R, E), 0 }, 820 /*8a*/ { "mov", TRUE, BYTE, op2(E, R), 0 }, 821 /*8b*/ { "mov", TRUE, LONG, op2(E, R), 0 }, 822 /*8c*/ { "mov", TRUE, NONE, op2(S, Ew), 0 }, 823 /*8d*/ { "lea", TRUE, LONG, op2(E, R), 0 }, 824 /*8e*/ { "mov", TRUE, NONE, op2(Ew, S), 0 }, 825 /*8f*/ { "pop", TRUE, LONG, op1(E), 0 }, 826 827 /*90*/ { "nop", FALSE, NONE, 0, 0 }, 828 /*91*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 829 /*92*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 830 /*93*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 831 /*94*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 832 /*95*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 833 /*96*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 834 /*97*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 835 836 /*98*/ { "cwde", FALSE, SDEP, 0, "cbw" }, 837 /*99*/ { "cdq", FALSE, SDEP, 0, "cwd" }, 838 /*9a*/ { "lcall", FALSE, NONE, op1(OS), 0 }, 839 /*9b*/ { "wait", FALSE, NONE, 0, 0 }, 840 /*9c*/ { "pushf", FALSE, LONG, 0, 0 }, 841 /*9d*/ { "popf", FALSE, LONG, 0, 0 }, 842 /*9e*/ { "sahf", FALSE, NONE, 0, 0 }, 843 /*9f*/ { "lahf", FALSE, NONE, 0, 0 }, 844 845 /*a0*/ { "mov", FALSE, BYTE, op2(O, A), 0 }, 846 /*a1*/ { "mov", FALSE, LONG, op2(O, A), 0 }, 847 /*a2*/ { "mov", FALSE, BYTE, op2(A, O), 0 }, 848 /*a3*/ { "mov", FALSE, LONG, op2(A, O), 0 }, 849 /*a4*/ { "movs", FALSE, BYTE, op2(SI,DI), 0 }, 850 /*a5*/ { "movs", FALSE, LONG, op2(SI,DI), 0 }, 851 /*a6*/ { "cmps", FALSE, BYTE, op2(SI,DI), 0 }, 852 /*a7*/ { "cmps", FALSE, LONG, op2(SI,DI), 0 }, 853 854 /*a8*/ { "test", FALSE, BYTE, op2(I, A), 0 }, 855 /*a9*/ { "test", FALSE, LONG, op2(I, A), 0 }, 856 /*aa*/ { "stos", FALSE, BYTE, op1(DI), 0 }, 857 /*ab*/ { "stos", FALSE, LONG, op1(DI), 0 }, 858 /*ac*/ { "lods", FALSE, BYTE, op1(SI), 0 }, 859 /*ad*/ { "lods", FALSE, LONG, op1(SI), 0 }, 860 /*ae*/ { "scas", FALSE, BYTE, op1(SI), 0 }, 861 /*af*/ { "scas", FALSE, LONG, op1(SI), 0 }, 862 863 /*b0*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 864 /*b1*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 865 /*b2*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 866 /*b3*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 867 /*b4*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 868 /*b5*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 869 /*b6*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 870 /*b7*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 871 872 /*b8*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 873 /*b9*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 874 /*ba*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 875 /*bb*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 876 /*bc*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 877 /*bd*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 878 /*be*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 879 /*bf*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 880 881 /*c0*/ { "", TRUE, BYTE, op2(Ib, E), db_Grp2 }, 882 /*c1*/ { "", TRUE, LONG, op2(Ib, E), db_Grp2 }, 883 /*c2*/ { "ret", FALSE, NONE, op1(Iw), 0 }, 884 /*c3*/ { "ret", FALSE, NONE, 0, 0 }, 885 /*c4*/ { "les", TRUE, LONG, op2(E, R), 0 }, 886 /*c5*/ { "lds", TRUE, LONG, op2(E, R), 0 }, 887 /*c6*/ { "mov", TRUE, BYTE, op2(I, E), 0 }, 888 /*c7*/ { "mov", TRUE, LONG, op2(I, E), 0 }, 889 890 /*c8*/ { "enter", FALSE, NONE, op2(Iw, Ib), 0 }, 891 /*c9*/ { "leave", FALSE, NONE, 0, 0 }, 892 /*ca*/ { "lret", FALSE, NONE, op1(Iw), 0 }, 893 /*cb*/ { "lret", FALSE, NONE, 0, 0 }, 894 /*cc*/ { "int", FALSE, NONE, op1(o3), 0 }, 895 /*cd*/ { "int", FALSE, NONE, op1(Ib), 0 }, 896 /*ce*/ { "into", FALSE, NONE, 0, 0 }, 897 /*cf*/ { "iret", FALSE, NONE, 0, 0 }, 898 899 /*d0*/ { "", TRUE, BYTE, op2(o1, E), db_Grp2 }, 900 /*d1*/ { "", TRUE, LONG, op2(o1, E), db_Grp2 }, 901 /*d2*/ { "", TRUE, BYTE, op2(CL, E), db_Grp2 }, 902 /*d3*/ { "", TRUE, LONG, op2(CL, E), db_Grp2 }, 903 /*d4*/ { "aam", FALSE, NONE, op1(Iba), 0 }, 904 /*d5*/ { "aad", FALSE, NONE, op1(Iba), 0 }, 905 /*d6*/ { ".byte\t0xd6", FALSE, NONE, 0, 0 }, 906 /*d7*/ { "xlat", FALSE, BYTE, op1(BX), 0 }, 907 908 /*d8*/ { "", TRUE, NONE, 0, db_Esc8 }, 909 /*d9*/ { "", TRUE, NONE, 0, db_Esc9 }, 910 /*da*/ { "", TRUE, NONE, 0, db_Esca }, 911 /*db*/ { "", TRUE, NONE, 0, db_Escb }, 912 /*dc*/ { "", TRUE, NONE, 0, db_Escc }, 913 /*dd*/ { "", TRUE, NONE, 0, db_Escd }, 914 /*de*/ { "", TRUE, NONE, 0, db_Esce }, 915 /*df*/ { "", TRUE, NONE, 0, db_Escf }, 916 917 /*e0*/ { "loopne",FALSE, NONE, op1(Db), 0 }, 918 /*e1*/ { "loope", FALSE, NONE, op1(Db), 0 }, 919 /*e2*/ { "loop", FALSE, NONE, op1(Db), 0 }, 920 /*e3*/ { "jrcxz", FALSE, ADEP, op1(Db), "jecxz" }, 921 /*e4*/ { "in", FALSE, BYTE, op2(Ib, A), 0 }, 922 /*e5*/ { "in", FALSE, LONG, op2(Ib, A) , 0 }, 923 /*e6*/ { "out", FALSE, BYTE, op2(A, Ib), 0 }, 924 /*e7*/ { "out", FALSE, LONG, op2(A, Ib) , 0 }, 925 926 /*e8*/ { "call", FALSE, NONE, op1(Dl), 0 }, 927 /*e9*/ { "jmp", FALSE, NONE, op1(Dl), 0 }, 928 /*ea*/ { "ljmp", FALSE, NONE, op1(OS), 0 }, 929 /*eb*/ { "jmp", FALSE, NONE, op1(Db), 0 }, 930 /*ec*/ { "in", FALSE, BYTE, op2(DX, A), 0 }, 931 /*ed*/ { "in", FALSE, LONG, op2(DX, A) , 0 }, 932 /*ee*/ { "out", FALSE, BYTE, op2(A, DX), 0 }, 933 /*ef*/ { "out", FALSE, LONG, op2(A, DX) , 0 }, 934 935 /*f0*/ { "", FALSE, NONE, 0, 0 }, 936 /*f1*/ { ".byte\t0xf1", FALSE, NONE, 0, 0 }, 937 /*f2*/ { "", FALSE, NONE, 0, 0 }, 938 /*f3*/ { "", FALSE, NONE, 0, 0 }, 939 /*f4*/ { "hlt", FALSE, NONE, 0, 0 }, 940 /*f5*/ { "cmc", FALSE, NONE, 0, 0 }, 941 /*f6*/ { "", TRUE, BYTE, 0, db_Grp3 }, 942 /*f7*/ { "", TRUE, LONG, 0, db_Grp3 }, 943 944 /*f8*/ { "clc", FALSE, NONE, 0, 0 }, 945 /*f9*/ { "stc", FALSE, NONE, 0, 0 }, 946 /*fa*/ { "cli", FALSE, NONE, 0, 0 }, 947 /*fb*/ { "sti", FALSE, NONE, 0, 0 }, 948 /*fc*/ { "cld", FALSE, NONE, 0, 0 }, 949 /*fd*/ { "std", FALSE, NONE, 0, 0 }, 950 /*fe*/ { "", TRUE, NONE, 0, db_Grp4 }, 951 /*ff*/ { "", TRUE, NONE, 0, db_Grp5 }, 952 }; 953 954 static const struct inst db_bad_inst = 955 { "???", FALSE, NONE, 0, 0 } 956 ; 957 958 #define f_mod(rex, byte) ((byte)>>6) 959 #define f_reg(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_R ? 0x8 : 0x0)) 960 #define f_rm(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0)) 961 962 #define sib_ss(rex, byte) ((byte)>>6) 963 #define sib_index(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_X ? 0x8 : 0x0)) 964 #define sib_base(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0)) 965 966 struct i_addr { 967 int is_reg; /* if reg, reg number is in 'disp' */ 968 int disp; 969 const char * base; 970 const char * index; 971 int ss; 972 }; 973 974 static const char * const db_reg[2][4][16] = { 975 976 {{"%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh", 977 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" }, 978 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di", 979 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" }, 980 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi", 981 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" }, 982 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi", 983 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }}, 984 985 {{"%al", "%cl", "%dl", "%bl", "%spl", "%bpl", "%sil", "%dil", 986 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" }, 987 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di", 988 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" }, 989 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi", 990 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" }, 991 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi", 992 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }} 993 }; 994 995 static const char * const db_seg_reg[8] = { 996 "%es", "%cs", "%ss", "%ds", "%fs", "%gs", "", "" 997 }; 998 999 /* 1000 * lengths for size attributes 1001 */ 1002 static const int db_lengths[] = { 1003 1, /* BYTE */ 1004 2, /* WORD */ 1005 4, /* LONG */ 1006 8, /* QUAD */ 1007 4, /* SNGL */ 1008 8, /* DBLR */ 1009 10, /* EXTR */ 1010 }; 1011 1012 #define get_value_inc(result, loc, size, is_signed) \ 1013 result = db_get_value((loc), (size), (is_signed)); \ 1014 (loc) += (size); 1015 1016 static db_addr_t 1017 db_disasm_esc(db_addr_t loc, int inst, int rex, int short_addr, 1018 int size, const char *seg); 1019 static void db_print_address(const char *seg, int size, int rex, 1020 struct i_addr *addrp); 1021 static db_addr_t 1022 db_read_address(db_addr_t loc, int short_addr, int rex, int regmodrm, 1023 struct i_addr *addrp); 1024 1025 /* 1026 * Read address at location and return updated location. 1027 */ 1028 static db_addr_t 1029 db_read_address(loc, short_addr, rex, regmodrm, addrp) 1030 db_addr_t loc; 1031 int short_addr; 1032 int rex; 1033 int regmodrm; 1034 struct i_addr * addrp; /* out */ 1035 { 1036 int mod, rm, sib, index, disp, size, have_sib; 1037 1038 mod = f_mod(rex, regmodrm); 1039 rm = f_rm(rex, regmodrm); 1040 1041 if (mod == 3) { 1042 addrp->is_reg = TRUE; 1043 addrp->disp = rm; 1044 return (loc); 1045 } 1046 addrp->is_reg = FALSE; 1047 addrp->index = NULL; 1048 1049 if (short_addr) 1050 size = LONG; 1051 else 1052 size = QUAD; 1053 1054 if ((rm & 0x7) == 4) { 1055 get_value_inc(sib, loc, 1, FALSE); 1056 rm = sib_base(rex, sib); 1057 index = sib_index(rex, sib); 1058 if (index != 4) 1059 addrp->index = db_reg[1][size][index]; 1060 addrp->ss = sib_ss(rex, sib); 1061 have_sib = 1; 1062 } else 1063 have_sib = 0; 1064 1065 switch (mod) { 1066 case 0: 1067 if (rm == 5) { 1068 get_value_inc(addrp->disp, loc, 4, FALSE); 1069 if (have_sib) 1070 addrp->base = NULL; 1071 else if (short_addr) 1072 addrp->base = "%eip"; 1073 else 1074 addrp->base = "%rip"; 1075 } else { 1076 addrp->disp = 0; 1077 addrp->base = db_reg[1][size][rm]; 1078 } 1079 break; 1080 1081 case 1: 1082 get_value_inc(disp, loc, 1, TRUE); 1083 addrp->disp = disp; 1084 addrp->base = db_reg[1][size][rm]; 1085 break; 1086 1087 case 2: 1088 get_value_inc(disp, loc, 4, FALSE); 1089 addrp->disp = disp; 1090 addrp->base = db_reg[1][size][rm]; 1091 break; 1092 } 1093 return (loc); 1094 } 1095 1096 static void 1097 db_print_address(seg, size, rex, addrp) 1098 const char * seg; 1099 int size; 1100 int rex; 1101 struct i_addr * addrp; 1102 { 1103 if (addrp->is_reg) { 1104 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][addrp->disp]); 1105 return; 1106 } 1107 1108 if (seg) { 1109 db_printf("%s:", seg); 1110 } 1111 1112 if (addrp->disp != 0 || (addrp->base == NULL && addrp->index == NULL)) 1113 db_printsym((db_addr_t)addrp->disp, DB_STGY_ANY); 1114 if (addrp->base != NULL || addrp->index != NULL) { 1115 db_printf("("); 1116 if (addrp->base) 1117 db_printf("%s", addrp->base); 1118 if (addrp->index) 1119 db_printf(",%s,%d", addrp->index, 1<<addrp->ss); 1120 db_printf(")"); 1121 } 1122 } 1123 1124 /* 1125 * Disassemble floating-point ("escape") instruction 1126 * and return updated location. 1127 */ 1128 static db_addr_t 1129 db_disasm_esc(loc, inst, rex, short_addr, size, seg) 1130 db_addr_t loc; 1131 int inst; 1132 int rex; 1133 int short_addr; 1134 int size; 1135 const char * seg; 1136 { 1137 int regmodrm; 1138 const struct finst * fp; 1139 int mod; 1140 struct i_addr address; 1141 const char * name; 1142 1143 get_value_inc(regmodrm, loc, 1, FALSE); 1144 fp = &db_Esc_inst[inst - 0xd8][f_reg(rex, regmodrm)]; 1145 mod = f_mod(rex, regmodrm); 1146 if (mod != 3) { 1147 if (*fp->f_name == '\0') { 1148 db_printf("<bad instruction>"); 1149 return (loc); 1150 } 1151 /* 1152 * Normal address modes. 1153 */ 1154 loc = db_read_address(loc, short_addr, rex, regmodrm, &address); 1155 db_printf("%s", fp->f_name); 1156 switch(fp->f_size) { 1157 case SNGL: 1158 db_printf("s"); 1159 break; 1160 case DBLR: 1161 db_printf("l"); 1162 break; 1163 case EXTR: 1164 db_printf("t"); 1165 break; 1166 case WORD: 1167 db_printf("s"); 1168 break; 1169 case LONG: 1170 db_printf("l"); 1171 break; 1172 case QUAD: 1173 db_printf("q"); 1174 break; 1175 default: 1176 break; 1177 } 1178 db_printf("\t"); 1179 db_print_address(seg, BYTE, rex, &address); 1180 } 1181 else { 1182 /* 1183 * 'reg-reg' - special formats 1184 */ 1185 switch (fp->f_rrmode) { 1186 case op2(ST,STI): 1187 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; 1188 db_printf("%s\t%%st,%%st(%d)",name,f_rm(rex, regmodrm)); 1189 break; 1190 case op2(STI,ST): 1191 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; 1192 db_printf("%s\t%%st(%d),%%st",name, f_rm(rex, regmodrm)); 1193 break; 1194 case op1(STI): 1195 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; 1196 db_printf("%s\t%%st(%d)",name, f_rm(rex, regmodrm)); 1197 break; 1198 case op1(X): 1199 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)]; 1200 if (*name == '\0') 1201 goto bad; 1202 db_printf("%s", name); 1203 break; 1204 case op1(XA): 1205 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)]; 1206 if (*name == '\0') 1207 goto bad; 1208 db_printf("%s\t%%ax", name); 1209 break; 1210 default: 1211 bad: 1212 db_printf("<bad instruction>"); 1213 break; 1214 } 1215 } 1216 1217 return (loc); 1218 } 1219 1220 /* 1221 * Disassemble instruction at 'loc'. 'altfmt' specifies an 1222 * (optional) alternate format. Return address of start of 1223 * next instruction. 1224 */ 1225 db_addr_t 1226 db_disasm(db_addr_t loc, bool altfmt) 1227 { 1228 int inst; 1229 int size; 1230 int short_addr; 1231 const char * seg; 1232 const struct inst * ip; 1233 const char * i_name; 1234 int i_size; 1235 int i_mode; 1236 int rex = 0; 1237 int regmodrm = 0; 1238 boolean_t first; 1239 int displ; 1240 int prefix; 1241 int rep; 1242 int imm; 1243 int imm2; 1244 long imm64; 1245 int len; 1246 struct i_addr address; 1247 1248 get_value_inc(inst, loc, 1, FALSE); 1249 short_addr = FALSE; 1250 size = LONG; 1251 seg = NULL; 1252 1253 /* 1254 * Get prefixes 1255 */ 1256 rep = FALSE; 1257 prefix = TRUE; 1258 do { 1259 switch (inst) { 1260 case 0x66: /* data16 */ 1261 size = WORD; 1262 break; 1263 case 0x67: 1264 short_addr = TRUE; 1265 break; 1266 case 0x26: 1267 seg = "%es"; 1268 break; 1269 case 0x36: 1270 seg = "%ss"; 1271 break; 1272 case 0x2e: 1273 seg = "%cs"; 1274 break; 1275 case 0x3e: 1276 seg = "%ds"; 1277 break; 1278 case 0x64: 1279 seg = "%fs"; 1280 break; 1281 case 0x65: 1282 seg = "%gs"; 1283 break; 1284 case 0xf0: 1285 db_printf("lock "); 1286 break; 1287 case 0xf2: 1288 db_printf("repne "); 1289 break; 1290 case 0xf3: 1291 rep = TRUE; 1292 break; 1293 default: 1294 prefix = FALSE; 1295 break; 1296 } 1297 if (inst >= 0x40 && inst < 0x50) { 1298 rex = inst; 1299 prefix = TRUE; 1300 } 1301 if (prefix) { 1302 get_value_inc(inst, loc, 1, FALSE); 1303 } 1304 } while (prefix); 1305 1306 if (inst >= 0xd8 && inst <= 0xdf) { 1307 loc = db_disasm_esc(loc, inst, rex, short_addr, size, seg); 1308 db_printf("\n"); 1309 return (loc); 1310 } 1311 1312 ip = &db_inst_table[inst]; 1313 while (ip->i_size == ESC) { 1314 get_value_inc(inst, loc, 1, FALSE); 1315 ip = ((const struct inst * const *)ip->i_extra)[inst>>4]; 1316 if (ip == NULL) { 1317 ip = &db_bad_inst; 1318 } 1319 else { 1320 ip = &ip[inst&0xf]; 1321 } 1322 } 1323 1324 if (ip->i_has_modrm) { 1325 get_value_inc(regmodrm, loc, 1, FALSE); 1326 loc = db_read_address(loc, short_addr, rex, regmodrm, &address); 1327 } 1328 1329 i_name = ip->i_name; 1330 i_size = ip->i_size; 1331 i_mode = ip->i_mode; 1332 1333 if (ip->i_extra == db_Grp9 && f_mod(rex, regmodrm) == 3) { 1334 ip = &db_Grp9b[f_reg(rex, regmodrm)]; 1335 i_name = ip->i_name; 1336 i_size = ip->i_size; 1337 i_mode = ip->i_mode; 1338 } 1339 else if (ip->i_extra == db_Grp1 || ip->i_extra == db_Grp2 || 1340 ip->i_extra == db_Grp6 || ip->i_extra == db_Grp7 || 1341 ip->i_extra == db_Grp8 || ip->i_extra == db_Grp9 || 1342 ip->i_extra == db_Grp15) { 1343 i_name = ((const char * const *)ip->i_extra)[f_reg(rex, regmodrm)]; 1344 } 1345 else if (ip->i_extra == db_Grp3) { 1346 ip = ip->i_extra; 1347 ip = &ip[f_reg(rex, regmodrm)]; 1348 i_name = ip->i_name; 1349 i_mode = ip->i_mode; 1350 } 1351 else if (ip->i_extra == db_Grp4 || ip->i_extra == db_Grp5) { 1352 ip = ip->i_extra; 1353 ip = &ip[f_reg(rex, regmodrm)]; 1354 i_name = ip->i_name; 1355 i_mode = ip->i_mode; 1356 i_size = ip->i_size; 1357 } 1358 1359 /* Special cases that don't fit well in the tables. */ 1360 if (ip->i_extra == db_Grp7 && f_mod(rex, regmodrm) == 3) { 1361 switch (regmodrm) { 1362 case 0xc1: 1363 i_name = "vmcall"; 1364 i_size = NONE; 1365 i_mode = 0; 1366 break; 1367 case 0xc2: 1368 i_name = "vmlaunch"; 1369 i_size = NONE; 1370 i_mode = 0; 1371 break; 1372 case 0xc3: 1373 i_name = "vmresume"; 1374 i_size = NONE; 1375 i_mode = 0; 1376 break; 1377 case 0xc4: 1378 i_name = "vmxoff"; 1379 i_size = NONE; 1380 i_mode = 0; 1381 break; 1382 case 0xc8: 1383 i_name = "monitor"; 1384 i_size = NONE; 1385 i_mode = 0; 1386 break; 1387 case 0xc9: 1388 i_name = "mwait"; 1389 i_size = NONE; 1390 i_mode = 0; 1391 break; 1392 case 0xca: 1393 i_name = "clac"; 1394 i_size = NONE; 1395 i_mode = 0; 1396 break; 1397 case 0xcb: 1398 i_name = "stac"; 1399 i_size = NONE; 1400 i_mode = 0; 1401 break; 1402 case 0xd0: 1403 i_name = "xgetbv"; 1404 i_size = NONE; 1405 i_mode = 0; 1406 break; 1407 case 0xd1: 1408 i_name = "xsetbv"; 1409 i_size = NONE; 1410 i_mode = 0; 1411 break; 1412 case 0xd8: 1413 i_name = "vmrun"; 1414 i_size = NONE; 1415 i_mode = 0; 1416 break; 1417 case 0xd9: 1418 i_name = "vmmcall"; 1419 i_size = NONE; 1420 i_mode = 0; 1421 break; 1422 case 0xda: 1423 i_name = "vmload"; 1424 i_size = NONE; 1425 i_mode = 0; 1426 break; 1427 case 0xdb: 1428 i_name = "vmsave"; 1429 i_size = NONE; 1430 i_mode = 0; 1431 break; 1432 case 0xdc: 1433 i_name = "stgi"; 1434 i_size = NONE; 1435 i_mode = 0; 1436 break; 1437 case 0xdd: 1438 i_name = "clgi"; 1439 i_size = NONE; 1440 i_mode = 0; 1441 break; 1442 case 0xde: 1443 i_name = "skinit"; 1444 i_size = NONE; 1445 i_mode = 0; 1446 break; 1447 case 0xdf: 1448 i_name = "invlpga"; 1449 i_size = NONE; 1450 i_mode = 0; 1451 break; 1452 case 0xf8: 1453 i_name = "swapgs"; 1454 i_size = NONE; 1455 i_mode = 0; 1456 break; 1457 case 0xf9: 1458 i_name = "rdtscp"; 1459 i_size = NONE; 1460 i_mode = 0; 1461 break; 1462 } 1463 } 1464 if (ip->i_extra == db_Grp15 && f_mod(rex, regmodrm) == 3) { 1465 i_name = db_Grp15b[f_reg(rex, regmodrm)]; 1466 i_size = NONE; 1467 i_mode = 0; 1468 } 1469 1470 /* Handle instructions identified by mandatory prefixes. */ 1471 if (rep == TRUE) { 1472 if (inst == 0x90) { 1473 i_name = "pause"; 1474 i_size = NONE; 1475 i_mode = 0; 1476 rep = FALSE; 1477 } else if (ip->i_extra == db_Grp9 && f_mod(rex, regmodrm) != 3 && 1478 f_reg(rex, regmodrm) == 0x6) { 1479 i_name = "vmxon"; 1480 rep = FALSE; 1481 } 1482 } 1483 if (size == WORD) { 1484 if (ip->i_extra == db_Grp9 && f_mod(rex, regmodrm) != 3 && 1485 f_reg(rex, regmodrm) == 0x6) { 1486 i_name = "vmclear"; 1487 } 1488 } 1489 if (rex & REX_W) { 1490 if (strcmp(i_name, "cwde") == 0) 1491 i_name = "cdqe"; 1492 else if (strcmp(i_name, "cmpxchg8b") == 0) 1493 i_name = "cmpxchg16b"; 1494 } 1495 1496 if (rep == TRUE) 1497 db_printf("repe "); /* XXX repe VS rep */ 1498 1499 if (i_size == SDEP) { 1500 if (size == LONG) 1501 db_printf("%s", i_name); 1502 else 1503 db_printf("%s", (const char *)ip->i_extra); 1504 } else if (i_size == ADEP) { 1505 if (short_addr == FALSE) 1506 db_printf("%s", i_name); 1507 else 1508 db_printf("%s", (const char *)ip->i_extra); 1509 } 1510 else { 1511 db_printf("%s", i_name); 1512 if ((inst >= 0x50 && inst <= 0x5f) || inst == 0x68 || inst == 0x6a) { 1513 i_size = NONE; 1514 db_printf("q"); 1515 } 1516 if (i_size != NONE) { 1517 if (i_size == BYTE) { 1518 db_printf("b"); 1519 size = BYTE; 1520 } 1521 else if (i_size == WORD) { 1522 db_printf("w"); 1523 size = WORD; 1524 } 1525 else if (size == WORD) 1526 db_printf("w"); 1527 else { 1528 if (rex & REX_W) 1529 db_printf("q"); 1530 else 1531 db_printf("l"); 1532 } 1533 } 1534 } 1535 db_printf("\t"); 1536 for (first = TRUE; 1537 i_mode != 0; 1538 i_mode >>= 8, first = FALSE) 1539 { 1540 if (!first) 1541 db_printf(","); 1542 1543 switch (i_mode & 0xFF) { 1544 1545 case E: 1546 db_print_address(seg, size, rex, &address); 1547 break; 1548 1549 case Eind: 1550 db_printf("*"); 1551 db_print_address(seg, size, rex, &address); 1552 break; 1553 1554 case El: 1555 db_print_address(seg, (rex & REX_W) ? QUAD : LONG, rex, &address); 1556 break; 1557 1558 case EL: 1559 db_print_address(seg, LONG, 0, &address); 1560 break; 1561 1562 case Ew: 1563 db_print_address(seg, WORD, rex, &address); 1564 break; 1565 1566 case Eb: 1567 db_print_address(seg, BYTE, rex, &address); 1568 break; 1569 1570 case R: 1571 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][f_reg(rex, regmodrm)]); 1572 break; 1573 1574 case Rw: 1575 db_printf("%s", db_reg[rex != 0 ? 1 : 0][WORD][f_reg(rex, regmodrm)]); 1576 break; 1577 1578 case Rq: 1579 db_printf("%s", db_reg[rex != 0 ? 1 : 0][QUAD][f_reg(rex, regmodrm)]); 1580 break; 1581 1582 case Ri: 1583 db_printf("%s", db_reg[0][QUAD][f_rm(rex, inst)]); 1584 break; 1585 1586 case Ril: 1587 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(rex & REX_R) ? QUAD : LONG][f_rm(rex, inst)]); 1588 break; 1589 1590 case Rv: 1591 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][f_rm(rex, regmodrm)]); 1592 break; 1593 1594 case S: 1595 db_printf("%s", db_seg_reg[f_reg(rex, regmodrm)]); 1596 break; 1597 1598 case Si: 1599 db_printf("%s", db_seg_reg[f_reg(rex, inst)]); 1600 break; 1601 1602 case A: 1603 db_printf("%s", db_reg[rex != 0 ? 1 : 0][size][0]); /* acc */ 1604 break; 1605 1606 case BX: 1607 if (seg) 1608 db_printf("%s:", seg); 1609 db_printf("(%s)", short_addr ? "%bx" : "%ebx"); 1610 break; 1611 1612 case CL: 1613 db_printf("%%cl"); 1614 break; 1615 1616 case DX: 1617 db_printf("%%dx"); 1618 break; 1619 1620 case SI: 1621 if (seg) 1622 db_printf("%s:", seg); 1623 db_printf("(%s)", short_addr ? "%si" : "%rsi"); 1624 break; 1625 1626 case DI: 1627 db_printf("%%es:(%s)", short_addr ? "%di" : "%rdi"); 1628 break; 1629 1630 case CR: 1631 db_printf("%%cr%d", f_reg(rex, regmodrm)); 1632 break; 1633 1634 case DR: 1635 db_printf("%%dr%d", f_reg(rex, regmodrm)); 1636 break; 1637 1638 case TR: 1639 db_printf("%%tr%d", f_reg(rex, regmodrm)); 1640 break; 1641 1642 case I: 1643 len = db_lengths[size]; 1644 get_value_inc(imm, loc, len, FALSE); 1645 db_printf("$%#r", imm); 1646 break; 1647 1648 case Is: 1649 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size]; 1650 get_value_inc(imm, loc, len, FALSE); 1651 db_printf("$%+#r", imm); 1652 break; 1653 1654 case Ib: 1655 get_value_inc(imm, loc, 1, FALSE); 1656 db_printf("$%#r", imm); 1657 break; 1658 1659 case Iba: 1660 get_value_inc(imm, loc, 1, FALSE); 1661 if (imm != 0x0a) 1662 db_printf("$%#r", imm); 1663 break; 1664 1665 case Ibs: 1666 get_value_inc(imm, loc, 1, TRUE); 1667 if (size == WORD) 1668 imm &= 0xFFFF; 1669 db_printf("$%+#r", imm); 1670 break; 1671 1672 case Iw: 1673 get_value_inc(imm, loc, 2, FALSE); 1674 db_printf("$%#r", imm); 1675 break; 1676 1677 case Ilq: 1678 len = db_lengths[rex & REX_W ? QUAD : LONG]; 1679 get_value_inc(imm64, loc, len, FALSE); 1680 db_printf("$%#lr", imm64); 1681 break; 1682 1683 case O: 1684 len = (short_addr ? 2 : 4); 1685 get_value_inc(displ, loc, len, FALSE); 1686 if (seg) 1687 db_printf("%s:%+#r",seg, displ); 1688 else 1689 db_printsym((db_addr_t)displ, DB_STGY_ANY); 1690 break; 1691 1692 case Db: 1693 get_value_inc(displ, loc, 1, TRUE); 1694 displ += loc; 1695 if (size == WORD) 1696 displ &= 0xFFFF; 1697 db_printsym((db_addr_t)displ, DB_STGY_XTRN); 1698 break; 1699 1700 case Dl: 1701 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size]; 1702 get_value_inc(displ, loc, len, FALSE); 1703 displ += loc; 1704 if (size == WORD) 1705 displ &= 0xFFFF; 1706 db_printsym((db_addr_t)displ, DB_STGY_XTRN); 1707 break; 1708 1709 case o1: 1710 db_printf("$1"); 1711 break; 1712 1713 case o3: 1714 db_printf("$3"); 1715 break; 1716 1717 case OS: 1718 len = db_lengths[size]; 1719 get_value_inc(imm, loc, len, FALSE); /* offset */ 1720 get_value_inc(imm2, loc, 2, FALSE); /* segment */ 1721 db_printf("$%#r,%#r", imm2, imm); 1722 break; 1723 } 1724 } 1725 db_printf("\n"); 1726 return (loc); 1727 } 1728