Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/amd64/amd64/db_disasm.c
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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: releng/10.1/sys/amd64/amd64/db_disasm.c 255192 2013-09-03 21:21:47Z jhb $"); 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 Ri 7 /* register in instruction */ 75 #define S 8 /* segment reg, in 'reg' field */ 76 #define Si 9 /* segment reg, in instruction */ 77 #define A 10 /* accumulator */ 78 #define BX 11 /* (bx) */ 79 #define CL 12 /* cl, for shifts */ 80 #define DX 13 /* dx, for IO */ 81 #define SI 14 /* si */ 82 #define DI 15 /* di */ 83 #define CR 16 /* control register */ 84 #define DR 17 /* debug register */ 85 #define TR 18 /* test register */ 86 #define I 19 /* immediate, unsigned */ 87 #define Is 20 /* immediate, signed */ 88 #define Ib 21 /* byte immediate, unsigned */ 89 #define Ibs 22 /* byte immediate, signed */ 90 #define Iw 23 /* word immediate, unsigned */ 91 #define Ilq 24 /* long/quad immediate, unsigned */ 92 #define O 25 /* direct address */ 93 #define Db 26 /* byte displacement from EIP */ 94 #define Dl 27 /* long displacement from EIP */ 95 #define o1 28 /* constant 1 */ 96 #define o3 29 /* constant 3 */ 97 #define OS 30 /* immediate offset/segment */ 98 #define ST 31 /* FP stack top */ 99 #define STI 32 /* FP stack */ 100 #define X 33 /* extended FP op */ 101 #define XA 34 /* for 'fstcw %ax' */ 102 #define El 35 /* address, long/quad size */ 103 #define Ril 36 /* long register in instruction */ 104 #define Iba 37 /* byte immediate, don't print if 0xa */ 105 #define EL 38 /* address, explicitly long size */ 106 107 struct inst { 108 const char * i_name; /* name */ 109 short i_has_modrm; /* has regmodrm byte */ 110 short i_size; /* operand size */ 111 int i_mode; /* addressing modes */ 112 const void * i_extra; /* pointer to extra opcode table */ 113 }; 114 115 #define op1(x) (x) 116 #define op2(x,y) ((x)|((y)<<8)) 117 #define op3(x,y,z) ((x)|((y)<<8)|((z)<<16)) 118 119 struct finst { 120 const char * f_name; /* name for memory instruction */ 121 int f_size; /* size for memory instruction */ 122 int f_rrmode; /* mode for rr instruction */ 123 const void * f_rrname; /* name for rr instruction 124 (or pointer to table) */ 125 }; 126 127 static const struct inst db_inst_0f388x[] = { 128 /*80*/ { "", TRUE, SDEP, op2(E, Rq), "invept" }, 129 /*81*/ { "", TRUE, SDEP, op2(E, Rq), "invvpid" }, 130 /*82*/ { "", TRUE, SDEP, op2(E, Rq), "invpcid" }, 131 /*83*/ { "", FALSE, NONE, 0, 0 }, 132 /*84*/ { "", FALSE, NONE, 0, 0 }, 133 /*85*/ { "", FALSE, NONE, 0, 0 }, 134 /*86*/ { "", FALSE, NONE, 0, 0 }, 135 /*87*/ { "", FALSE, NONE, 0, 0 }, 136 137 /*88*/ { "", FALSE, NONE, 0, 0 }, 138 /*89*/ { "", FALSE, NONE, 0, 0 }, 139 /*8a*/ { "", FALSE, NONE, 0, 0 }, 140 /*8b*/ { "", FALSE, NONE, 0, 0 }, 141 /*8c*/ { "", FALSE, NONE, 0, 0 }, 142 /*8d*/ { "", FALSE, NONE, 0, 0 }, 143 /*8e*/ { "", FALSE, NONE, 0, 0 }, 144 /*8f*/ { "", FALSE, NONE, 0, 0 }, 145 }; 146 147 static const struct inst * const db_inst_0f38[] = { 148 0, 149 0, 150 0, 151 0, 152 0, 153 0, 154 0, 155 0, 156 db_inst_0f388x, 157 0, 158 0, 159 0, 160 0, 161 0, 162 0, 163 0 164 }; 165 166 static const char * const db_Grp6[] = { 167 "sldt", 168 "str", 169 "lldt", 170 "ltr", 171 "verr", 172 "verw", 173 "", 174 "" 175 }; 176 177 static const char * const db_Grp7[] = { 178 "sgdt", 179 "sidt", 180 "lgdt", 181 "lidt", 182 "smsw", 183 "", 184 "lmsw", 185 "invlpg" 186 }; 187 188 static const char * const db_Grp8[] = { 189 "", 190 "", 191 "", 192 "", 193 "bt", 194 "bts", 195 "btr", 196 "btc" 197 }; 198 199 static const char * const db_Grp9[] = { 200 "", 201 "cmpxchg8b", 202 "", 203 "", 204 "", 205 "", 206 "vmptrld", 207 "vmptrst" 208 }; 209 210 static const char * const db_Grp15[] = { 211 "fxsave", 212 "fxrstor", 213 "ldmxcsr", 214 "stmxcsr", 215 "xsave", 216 "xrstor", 217 "xsaveopt", 218 "clflush" 219 }; 220 221 static const char * const db_Grp15b[] = { 222 "", 223 "", 224 "", 225 "", 226 "", 227 "lfence", 228 "mfence", 229 "sfence" 230 }; 231 232 static const struct inst db_inst_0f0x[] = { 233 /*00*/ { "", TRUE, NONE, op1(Ew), db_Grp6 }, 234 /*01*/ { "", TRUE, NONE, op1(Ew), db_Grp7 }, 235 /*02*/ { "lar", TRUE, LONG, op2(E,R), 0 }, 236 /*03*/ { "lsl", TRUE, LONG, op2(E,R), 0 }, 237 /*04*/ { "", FALSE, NONE, 0, 0 }, 238 /*05*/ { "syscall",FALSE,NONE, 0, 0 }, 239 /*06*/ { "clts", FALSE, NONE, 0, 0 }, 240 /*07*/ { "sysret",FALSE, NONE, 0, 0 }, 241 242 /*08*/ { "invd", FALSE, NONE, 0, 0 }, 243 /*09*/ { "wbinvd",FALSE, NONE, 0, 0 }, 244 /*0a*/ { "", FALSE, NONE, 0, 0 }, 245 /*0b*/ { "", FALSE, NONE, 0, 0 }, 246 /*0c*/ { "", FALSE, NONE, 0, 0 }, 247 /*0d*/ { "", FALSE, NONE, 0, 0 }, 248 /*0e*/ { "", FALSE, NONE, 0, 0 }, 249 /*0f*/ { "", FALSE, NONE, 0, 0 }, 250 }; 251 252 static const struct inst db_inst_0f2x[] = { 253 /*20*/ { "mov", TRUE, LONG, op2(CR,El), 0 }, 254 /*21*/ { "mov", TRUE, LONG, op2(DR,El), 0 }, 255 /*22*/ { "mov", TRUE, LONG, op2(El,CR), 0 }, 256 /*23*/ { "mov", TRUE, LONG, op2(El,DR), 0 }, 257 /*24*/ { "mov", TRUE, LONG, op2(TR,El), 0 }, 258 /*25*/ { "", FALSE, NONE, 0, 0 }, 259 /*26*/ { "mov", TRUE, LONG, op2(El,TR), 0 }, 260 /*27*/ { "", FALSE, NONE, 0, 0 }, 261 262 /*28*/ { "", FALSE, NONE, 0, 0 }, 263 /*29*/ { "", FALSE, NONE, 0, 0 }, 264 /*2a*/ { "", FALSE, NONE, 0, 0 }, 265 /*2b*/ { "", FALSE, NONE, 0, 0 }, 266 /*2c*/ { "", FALSE, NONE, 0, 0 }, 267 /*2d*/ { "", FALSE, NONE, 0, 0 }, 268 /*2e*/ { "", FALSE, NONE, 0, 0 }, 269 /*2f*/ { "", FALSE, NONE, 0, 0 }, 270 }; 271 272 static const struct inst db_inst_0f3x[] = { 273 /*30*/ { "wrmsr", FALSE, NONE, 0, 0 }, 274 /*31*/ { "rdtsc", FALSE, NONE, 0, 0 }, 275 /*32*/ { "rdmsr", FALSE, NONE, 0, 0 }, 276 /*33*/ { "rdpmc", FALSE, NONE, 0, 0 }, 277 /*34*/ { "sysenter",FALSE,NONE, 0, 0 }, 278 /*35*/ { "sysexit",FALSE,NONE, 0, 0 }, 279 /*36*/ { "", FALSE, NONE, 0, 0 }, 280 /*37*/ { "getsec",FALSE, NONE, 0, 0 }, 281 282 /*38*/ { "", FALSE, ESC, 0, db_inst_0f38 }, 283 /*39*/ { "", FALSE, NONE, 0, 0 }, 284 /*3a*/ { "", FALSE, NONE, 0, 0 }, 285 /*3b*/ { "", FALSE, NONE, 0, 0 }, 286 /*3c*/ { "", FALSE, NONE, 0, 0 }, 287 /*3d*/ { "", FALSE, NONE, 0, 0 }, 288 /*3e*/ { "", FALSE, NONE, 0, 0 }, 289 /*3f*/ { "", FALSE, NONE, 0, 0 }, 290 }; 291 292 static const struct inst db_inst_0f4x[] = { 293 /*40*/ { "cmovo", TRUE, NONE, op2(E, R), 0 }, 294 /*41*/ { "cmovno", TRUE, NONE, op2(E, R), 0 }, 295 /*42*/ { "cmovb", TRUE, NONE, op2(E, R), 0 }, 296 /*43*/ { "cmovnb", TRUE, NONE, op2(E, R), 0 }, 297 /*44*/ { "cmovz", TRUE, NONE, op2(E, R), 0 }, 298 /*45*/ { "cmovnz", TRUE, NONE, op2(E, R), 0 }, 299 /*46*/ { "cmovbe", TRUE, NONE, op2(E, R), 0 }, 300 /*47*/ { "cmovnbe",TRUE, NONE, op2(E, R), 0 }, 301 302 /*48*/ { "cmovs", TRUE, NONE, op2(E, R), 0 }, 303 /*49*/ { "cmovns", TRUE, NONE, op2(E, R), 0 }, 304 /*4a*/ { "cmovp", TRUE, NONE, op2(E, R), 0 }, 305 /*4b*/ { "cmovnp", TRUE, NONE, op2(E, R), 0 }, 306 /*4c*/ { "cmovl", TRUE, NONE, op2(E, R), 0 }, 307 /*4d*/ { "cmovnl", TRUE, NONE, op2(E, R), 0 }, 308 /*4e*/ { "cmovle", TRUE, NONE, op2(E, R), 0 }, 309 /*4f*/ { "cmovnle",TRUE, NONE, op2(E, R), 0 }, 310 }; 311 312 static const struct inst db_inst_0f7x[] = { 313 /*70*/ { "", FALSE, NONE, 0, 0 }, 314 /*71*/ { "", FALSE, NONE, 0, 0 }, 315 /*72*/ { "", FALSE, NONE, 0, 0 }, 316 /*73*/ { "", FALSE, NONE, 0, 0 }, 317 /*74*/ { "", FALSE, NONE, 0, 0 }, 318 /*75*/ { "", FALSE, NONE, 0, 0 }, 319 /*76*/ { "", FALSE, NONE, 0, 0 }, 320 /*77*/ { "", FALSE, NONE, 0, 0 }, 321 322 /*78*/ { "vmread", TRUE, NONE, op2(Rq, E), 0 }, 323 /*79*/ { "vmwrite",TRUE, NONE, op2(E, Rq), 0 }, 324 /*7a*/ { "", FALSE, NONE, 0, 0 }, 325 /*7b*/ { "", FALSE, NONE, 0, 0 }, 326 /*7c*/ { "", FALSE, NONE, 0, 0 }, 327 /*7d*/ { "", FALSE, NONE, 0, 0 }, 328 /*7e*/ { "", FALSE, NONE, 0, 0 }, 329 /*7f*/ { "", FALSE, NONE, 0, 0 }, 330 }; 331 332 static const struct inst db_inst_0f8x[] = { 333 /*80*/ { "jo", FALSE, NONE, op1(Dl), 0 }, 334 /*81*/ { "jno", FALSE, NONE, op1(Dl), 0 }, 335 /*82*/ { "jb", FALSE, NONE, op1(Dl), 0 }, 336 /*83*/ { "jnb", FALSE, NONE, op1(Dl), 0 }, 337 /*84*/ { "jz", FALSE, NONE, op1(Dl), 0 }, 338 /*85*/ { "jnz", FALSE, NONE, op1(Dl), 0 }, 339 /*86*/ { "jbe", FALSE, NONE, op1(Dl), 0 }, 340 /*87*/ { "jnbe", FALSE, NONE, op1(Dl), 0 }, 341 342 /*88*/ { "js", FALSE, NONE, op1(Dl), 0 }, 343 /*89*/ { "jns", FALSE, NONE, op1(Dl), 0 }, 344 /*8a*/ { "jp", FALSE, NONE, op1(Dl), 0 }, 345 /*8b*/ { "jnp", FALSE, NONE, op1(Dl), 0 }, 346 /*8c*/ { "jl", FALSE, NONE, op1(Dl), 0 }, 347 /*8d*/ { "jnl", FALSE, NONE, op1(Dl), 0 }, 348 /*8e*/ { "jle", FALSE, NONE, op1(Dl), 0 }, 349 /*8f*/ { "jnle", FALSE, NONE, op1(Dl), 0 }, 350 }; 351 352 static const struct inst db_inst_0f9x[] = { 353 /*90*/ { "seto", TRUE, NONE, op1(Eb), 0 }, 354 /*91*/ { "setno", TRUE, NONE, op1(Eb), 0 }, 355 /*92*/ { "setb", TRUE, NONE, op1(Eb), 0 }, 356 /*93*/ { "setnb", TRUE, NONE, op1(Eb), 0 }, 357 /*94*/ { "setz", TRUE, NONE, op1(Eb), 0 }, 358 /*95*/ { "setnz", TRUE, NONE, op1(Eb), 0 }, 359 /*96*/ { "setbe", TRUE, NONE, op1(Eb), 0 }, 360 /*97*/ { "setnbe",TRUE, NONE, op1(Eb), 0 }, 361 362 /*98*/ { "sets", TRUE, NONE, op1(Eb), 0 }, 363 /*99*/ { "setns", TRUE, NONE, op1(Eb), 0 }, 364 /*9a*/ { "setp", TRUE, NONE, op1(Eb), 0 }, 365 /*9b*/ { "setnp", TRUE, NONE, op1(Eb), 0 }, 366 /*9c*/ { "setl", TRUE, NONE, op1(Eb), 0 }, 367 /*9d*/ { "setnl", TRUE, NONE, op1(Eb), 0 }, 368 /*9e*/ { "setle", TRUE, NONE, op1(Eb), 0 }, 369 /*9f*/ { "setnle",TRUE, NONE, op1(Eb), 0 }, 370 }; 371 372 static const struct inst db_inst_0fax[] = { 373 /*a0*/ { "push", FALSE, NONE, op1(Si), 0 }, 374 /*a1*/ { "pop", FALSE, NONE, op1(Si), 0 }, 375 /*a2*/ { "cpuid", FALSE, NONE, 0, 0 }, 376 /*a3*/ { "bt", TRUE, LONG, op2(R,E), 0 }, 377 /*a4*/ { "shld", TRUE, LONG, op3(Ib,R,E), 0 }, 378 /*a5*/ { "shld", TRUE, LONG, op3(CL,R,E), 0 }, 379 /*a6*/ { "", FALSE, NONE, 0, 0 }, 380 /*a7*/ { "", FALSE, NONE, 0, 0 }, 381 382 /*a8*/ { "push", FALSE, NONE, op1(Si), 0 }, 383 /*a9*/ { "pop", FALSE, NONE, op1(Si), 0 }, 384 /*aa*/ { "rsm", FALSE, NONE, 0, 0 }, 385 /*ab*/ { "bts", TRUE, LONG, op2(R,E), 0 }, 386 /*ac*/ { "shrd", TRUE, LONG, op3(Ib,R,E), 0 }, 387 /*ad*/ { "shrd", TRUE, LONG, op3(CL,R,E), 0 }, 388 /*ae*/ { "", TRUE, LONG, op1(E), db_Grp15 }, 389 /*af*/ { "imul", TRUE, LONG, op2(E,R), 0 }, 390 }; 391 392 static const struct inst db_inst_0fbx[] = { 393 /*b0*/ { "cmpxchg",TRUE, BYTE, op2(R, E), 0 }, 394 /*b0*/ { "cmpxchg",TRUE, LONG, op2(R, E), 0 }, 395 /*b2*/ { "lss", TRUE, LONG, op2(E, R), 0 }, 396 /*b3*/ { "btr", TRUE, LONG, op2(R, E), 0 }, 397 /*b4*/ { "lfs", TRUE, LONG, op2(E, R), 0 }, 398 /*b5*/ { "lgs", TRUE, LONG, op2(E, R), 0 }, 399 /*b6*/ { "movzb", TRUE, LONG, op2(Eb, R), 0 }, 400 /*b7*/ { "movzw", TRUE, LONG, op2(Ew, R), 0 }, 401 402 /*b8*/ { "", FALSE, NONE, 0, 0 }, 403 /*b9*/ { "", FALSE, NONE, 0, 0 }, 404 /*ba*/ { "", TRUE, LONG, op2(Ib, E), db_Grp8 }, 405 /*bb*/ { "btc", TRUE, LONG, op2(R, E), 0 }, 406 /*bc*/ { "bsf", TRUE, LONG, op2(E, R), 0 }, 407 /*bd*/ { "bsr", TRUE, LONG, op2(E, R), 0 }, 408 /*be*/ { "movsb", TRUE, LONG, op2(Eb, R), 0 }, 409 /*bf*/ { "movsw", TRUE, LONG, op2(Ew, R), 0 }, 410 }; 411 412 static const struct inst db_inst_0fcx[] = { 413 /*c0*/ { "xadd", TRUE, BYTE, op2(R, E), 0 }, 414 /*c1*/ { "xadd", TRUE, LONG, op2(R, E), 0 }, 415 /*c2*/ { "", FALSE, NONE, 0, 0 }, 416 /*c3*/ { "", FALSE, NONE, 0, 0 }, 417 /*c4*/ { "", FALSE, NONE, 0, 0 }, 418 /*c5*/ { "", FALSE, NONE, 0, 0 }, 419 /*c6*/ { "", FALSE, NONE, 0, 0 }, 420 /*c7*/ { "", TRUE, NONE, op1(E), db_Grp9 }, 421 /*c8*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 422 /*c9*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 423 /*ca*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 424 /*cb*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 425 /*cc*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 426 /*cd*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 427 /*ce*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 428 /*cf*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 429 }; 430 431 static const struct inst * const db_inst_0f[] = { 432 db_inst_0f0x, 433 0, 434 db_inst_0f2x, 435 db_inst_0f3x, 436 db_inst_0f4x, 437 0, 438 0, 439 db_inst_0f7x, 440 db_inst_0f8x, 441 db_inst_0f9x, 442 db_inst_0fax, 443 db_inst_0fbx, 444 db_inst_0fcx, 445 0, 446 0, 447 0 448 }; 449 450 static const char * const db_Esc92[] = { 451 "fnop", "", "", "", "", "", "", "" 452 }; 453 static const char * const db_Esc94[] = { 454 "fchs", "fabs", "", "", "ftst", "fxam", "", "" 455 }; 456 static const char * const db_Esc95[] = { 457 "fld1", "fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz","" 458 }; 459 static const char * const db_Esc96[] = { 460 "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp", 461 "fincstp" 462 }; 463 static const char * const db_Esc97[] = { 464 "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos" 465 }; 466 467 static const char * const db_Esca5[] = { 468 "", "fucompp","", "", "", "", "", "" 469 }; 470 471 static const char * const db_Escb4[] = { 472 "fneni","fndisi", "fnclex","fninit","fsetpm", "", "", "" 473 }; 474 475 static const char * const db_Esce3[] = { 476 "", "fcompp","", "", "", "", "", "" 477 }; 478 479 static const char * const db_Escf4[] = { 480 "fnstsw","", "", "", "", "", "", "" 481 }; 482 483 static const struct finst db_Esc8[] = { 484 /**/ { "fadd", SNGL, op2(STI,ST), 0 }, 485 /*1*/ { "fmul", SNGL, op2(STI,ST), 0 }, 486 /*2*/ { "fcom", SNGL, op2(STI,ST), 0 }, 487 /*3*/ { "fcomp", SNGL, op2(STI,ST), 0 }, 488 /*4*/ { "fsub", SNGL, op2(STI,ST), 0 }, 489 /*5*/ { "fsubr", SNGL, op2(STI,ST), 0 }, 490 /*6*/ { "fdiv", SNGL, op2(STI,ST), 0 }, 491 /*7*/ { "fdivr", SNGL, op2(STI,ST), 0 }, 492 }; 493 494 static const struct finst db_Esc9[] = { 495 /**/ { "fld", SNGL, op1(STI), 0 }, 496 /*1*/ { "", NONE, op1(STI), "fxch" }, 497 /*2*/ { "fst", SNGL, op1(X), db_Esc92 }, 498 /*3*/ { "fstp", SNGL, 0, 0 }, 499 /*4*/ { "fldenv", NONE, op1(X), db_Esc94 }, 500 /*5*/ { "fldcw", NONE, op1(X), db_Esc95 }, 501 /*6*/ { "fnstenv",NONE, op1(X), db_Esc96 }, 502 /*7*/ { "fnstcw", NONE, op1(X), db_Esc97 }, 503 }; 504 505 static const struct finst db_Esca[] = { 506 /**/ { "fiadd", LONG, 0, 0 }, 507 /*1*/ { "fimul", LONG, 0, 0 }, 508 /*2*/ { "ficom", LONG, 0, 0 }, 509 /*3*/ { "ficomp", LONG, 0, 0 }, 510 /*4*/ { "fisub", LONG, 0, 0 }, 511 /*5*/ { "fisubr", LONG, op1(X), db_Esca5 }, 512 /*6*/ { "fidiv", LONG, 0, 0 }, 513 /*7*/ { "fidivr", LONG, 0, 0 } 514 }; 515 516 static const struct finst db_Escb[] = { 517 /**/ { "fild", LONG, 0, 0 }, 518 /*1*/ { "", NONE, 0, 0 }, 519 /*2*/ { "fist", LONG, 0, 0 }, 520 /*3*/ { "fistp", LONG, 0, 0 }, 521 /*4*/ { "", WORD, op1(X), db_Escb4 }, 522 /*5*/ { "fld", EXTR, 0, 0 }, 523 /*6*/ { "", WORD, 0, 0 }, 524 /*7*/ { "fstp", EXTR, 0, 0 }, 525 }; 526 527 static const struct finst db_Escc[] = { 528 /**/ { "fadd", DBLR, op2(ST,STI), 0 }, 529 /*1*/ { "fmul", DBLR, op2(ST,STI), 0 }, 530 /*2*/ { "fcom", DBLR, 0, 0 }, 531 /*3*/ { "fcomp", DBLR, 0, 0 }, 532 /*4*/ { "fsub", DBLR, op2(ST,STI), "fsubr" }, 533 /*5*/ { "fsubr", DBLR, op2(ST,STI), "fsub" }, 534 /*6*/ { "fdiv", DBLR, op2(ST,STI), "fdivr" }, 535 /*7*/ { "fdivr", DBLR, op2(ST,STI), "fdiv" }, 536 }; 537 538 static const struct finst db_Escd[] = { 539 /**/ { "fld", DBLR, op1(STI), "ffree" }, 540 /*1*/ { "", NONE, 0, 0 }, 541 /*2*/ { "fst", DBLR, op1(STI), 0 }, 542 /*3*/ { "fstp", DBLR, op1(STI), 0 }, 543 /*4*/ { "frstor", NONE, op1(STI), "fucom" }, 544 /*5*/ { "", NONE, op1(STI), "fucomp" }, 545 /*6*/ { "fnsave", NONE, 0, 0 }, 546 /*7*/ { "fnstsw", NONE, 0, 0 }, 547 }; 548 549 static const struct finst db_Esce[] = { 550 /**/ { "fiadd", WORD, op2(ST,STI), "faddp" }, 551 /*1*/ { "fimul", WORD, op2(ST,STI), "fmulp" }, 552 /*2*/ { "ficom", WORD, 0, 0 }, 553 /*3*/ { "ficomp", WORD, op1(X), db_Esce3 }, 554 /*4*/ { "fisub", WORD, op2(ST,STI), "fsubrp" }, 555 /*5*/ { "fisubr", WORD, op2(ST,STI), "fsubp" }, 556 /*6*/ { "fidiv", WORD, op2(ST,STI), "fdivrp" }, 557 /*7*/ { "fidivr", WORD, op2(ST,STI), "fdivp" }, 558 }; 559 560 static const struct finst db_Escf[] = { 561 /**/ { "fild", WORD, 0, 0 }, 562 /*1*/ { "", NONE, 0, 0 }, 563 /*2*/ { "fist", WORD, 0, 0 }, 564 /*3*/ { "fistp", WORD, 0, 0 }, 565 /*4*/ { "fbld", NONE, op1(XA), db_Escf4 }, 566 /*5*/ { "fild", QUAD, 0, 0 }, 567 /*6*/ { "fbstp", NONE, 0, 0 }, 568 /*7*/ { "fistp", QUAD, 0, 0 }, 569 }; 570 571 static const struct finst * const db_Esc_inst[] = { 572 db_Esc8, db_Esc9, db_Esca, db_Escb, 573 db_Escc, db_Escd, db_Esce, db_Escf 574 }; 575 576 static const char * const db_Grp1[] = { 577 "add", 578 "or", 579 "adc", 580 "sbb", 581 "and", 582 "sub", 583 "xor", 584 "cmp" 585 }; 586 587 static const char * const db_Grp2[] = { 588 "rol", 589 "ror", 590 "rcl", 591 "rcr", 592 "shl", 593 "shr", 594 "shl", 595 "sar" 596 }; 597 598 static const struct inst db_Grp3[] = { 599 { "test", TRUE, NONE, op2(I,E), 0 }, 600 { "test", TRUE, NONE, op2(I,E), 0 }, 601 { "not", TRUE, NONE, op1(E), 0 }, 602 { "neg", TRUE, NONE, op1(E), 0 }, 603 { "mul", TRUE, NONE, op2(E,A), 0 }, 604 { "imul", TRUE, NONE, op2(E,A), 0 }, 605 { "div", TRUE, NONE, op2(E,A), 0 }, 606 { "idiv", TRUE, NONE, op2(E,A), 0 }, 607 }; 608 609 static const struct inst db_Grp4[] = { 610 { "inc", TRUE, BYTE, op1(E), 0 }, 611 { "dec", TRUE, BYTE, op1(E), 0 }, 612 { "", TRUE, NONE, 0, 0 }, 613 { "", TRUE, NONE, 0, 0 }, 614 { "", TRUE, NONE, 0, 0 }, 615 { "", TRUE, NONE, 0, 0 }, 616 { "", TRUE, NONE, 0, 0 }, 617 { "", TRUE, NONE, 0, 0 } 618 }; 619 620 static const struct inst db_Grp5[] = { 621 { "inc", TRUE, LONG, op1(E), 0 }, 622 { "dec", TRUE, LONG, op1(E), 0 }, 623 { "call", TRUE, LONG, op1(Eind),0 }, 624 { "lcall", TRUE, LONG, op1(Eind),0 }, 625 { "jmp", TRUE, LONG, op1(Eind),0 }, 626 { "ljmp", TRUE, LONG, op1(Eind),0 }, 627 { "push", TRUE, LONG, op1(E), 0 }, 628 { "", TRUE, NONE, 0, 0 } 629 }; 630 631 static const struct inst db_inst_table[256] = { 632 /*00*/ { "add", TRUE, BYTE, op2(R, E), 0 }, 633 /*01*/ { "add", TRUE, LONG, op2(R, E), 0 }, 634 /*02*/ { "add", TRUE, BYTE, op2(E, R), 0 }, 635 /*03*/ { "add", TRUE, LONG, op2(E, R), 0 }, 636 /*04*/ { "add", FALSE, BYTE, op2(I, A), 0 }, 637 /*05*/ { "add", FALSE, LONG, op2(Is, A), 0 }, 638 /*06*/ { "push", FALSE, NONE, op1(Si), 0 }, 639 /*07*/ { "pop", FALSE, NONE, op1(Si), 0 }, 640 641 /*08*/ { "or", TRUE, BYTE, op2(R, E), 0 }, 642 /*09*/ { "or", TRUE, LONG, op2(R, E), 0 }, 643 /*0a*/ { "or", TRUE, BYTE, op2(E, R), 0 }, 644 /*0b*/ { "or", TRUE, LONG, op2(E, R), 0 }, 645 /*0c*/ { "or", FALSE, BYTE, op2(I, A), 0 }, 646 /*0d*/ { "or", FALSE, LONG, op2(I, A), 0 }, 647 /*0e*/ { "push", FALSE, NONE, op1(Si), 0 }, 648 /*0f*/ { "", FALSE, ESC, 0, db_inst_0f }, 649 650 /*10*/ { "adc", TRUE, BYTE, op2(R, E), 0 }, 651 /*11*/ { "adc", TRUE, LONG, op2(R, E), 0 }, 652 /*12*/ { "adc", TRUE, BYTE, op2(E, R), 0 }, 653 /*13*/ { "adc", TRUE, LONG, op2(E, R), 0 }, 654 /*14*/ { "adc", FALSE, BYTE, op2(I, A), 0 }, 655 /*15*/ { "adc", FALSE, LONG, op2(Is, A), 0 }, 656 /*16*/ { "push", FALSE, NONE, op1(Si), 0 }, 657 /*17*/ { "pop", FALSE, NONE, op1(Si), 0 }, 658 659 /*18*/ { "sbb", TRUE, BYTE, op2(R, E), 0 }, 660 /*19*/ { "sbb", TRUE, LONG, op2(R, E), 0 }, 661 /*1a*/ { "sbb", TRUE, BYTE, op2(E, R), 0 }, 662 /*1b*/ { "sbb", TRUE, LONG, op2(E, R), 0 }, 663 /*1c*/ { "sbb", FALSE, BYTE, op2(I, A), 0 }, 664 /*1d*/ { "sbb", FALSE, LONG, op2(Is, A), 0 }, 665 /*1e*/ { "push", FALSE, NONE, op1(Si), 0 }, 666 /*1f*/ { "pop", FALSE, NONE, op1(Si), 0 }, 667 668 /*20*/ { "and", TRUE, BYTE, op2(R, E), 0 }, 669 /*21*/ { "and", TRUE, LONG, op2(R, E), 0 }, 670 /*22*/ { "and", TRUE, BYTE, op2(E, R), 0 }, 671 /*23*/ { "and", TRUE, LONG, op2(E, R), 0 }, 672 /*24*/ { "and", FALSE, BYTE, op2(I, A), 0 }, 673 /*25*/ { "and", FALSE, LONG, op2(I, A), 0 }, 674 /*26*/ { "", FALSE, NONE, 0, 0 }, 675 /*27*/ { "daa", FALSE, NONE, 0, 0 }, 676 677 /*28*/ { "sub", TRUE, BYTE, op2(R, E), 0 }, 678 /*29*/ { "sub", TRUE, LONG, op2(R, E), 0 }, 679 /*2a*/ { "sub", TRUE, BYTE, op2(E, R), 0 }, 680 /*2b*/ { "sub", TRUE, LONG, op2(E, R), 0 }, 681 /*2c*/ { "sub", FALSE, BYTE, op2(I, A), 0 }, 682 /*2d*/ { "sub", FALSE, LONG, op2(Is, A), 0 }, 683 /*2e*/ { "", FALSE, NONE, 0, 0 }, 684 /*2f*/ { "das", FALSE, NONE, 0, 0 }, 685 686 /*30*/ { "xor", TRUE, BYTE, op2(R, E), 0 }, 687 /*31*/ { "xor", TRUE, LONG, op2(R, E), 0 }, 688 /*32*/ { "xor", TRUE, BYTE, op2(E, R), 0 }, 689 /*33*/ { "xor", TRUE, LONG, op2(E, R), 0 }, 690 /*34*/ { "xor", FALSE, BYTE, op2(I, A), 0 }, 691 /*35*/ { "xor", FALSE, LONG, op2(I, A), 0 }, 692 /*36*/ { "", FALSE, NONE, 0, 0 }, 693 /*37*/ { "aaa", FALSE, NONE, 0, 0 }, 694 695 /*38*/ { "cmp", TRUE, BYTE, op2(R, E), 0 }, 696 /*39*/ { "cmp", TRUE, LONG, op2(R, E), 0 }, 697 /*3a*/ { "cmp", TRUE, BYTE, op2(E, R), 0 }, 698 /*3b*/ { "cmp", TRUE, LONG, op2(E, R), 0 }, 699 /*3c*/ { "cmp", FALSE, BYTE, op2(I, A), 0 }, 700 /*3d*/ { "cmp", FALSE, LONG, op2(Is, A), 0 }, 701 /*3e*/ { "", FALSE, NONE, 0, 0 }, 702 /*3f*/ { "aas", FALSE, NONE, 0, 0 }, 703 704 /*40*/ { "rex", FALSE, NONE, 0, 0 }, 705 /*41*/ { "rex.b", FALSE, NONE, 0, 0 }, 706 /*42*/ { "rex.x", FALSE, NONE, 0, 0 }, 707 /*43*/ { "rex.xb", FALSE, NONE, 0, 0 }, 708 /*44*/ { "rex.r", FALSE, NONE, 0, 0 }, 709 /*45*/ { "rex.rb", FALSE, NONE, 0, 0 }, 710 /*46*/ { "rex.rx", FALSE, NONE, 0, 0 }, 711 /*47*/ { "rex.rxb", FALSE, NONE, 0, 0 }, 712 713 /*48*/ { "rex.w", FALSE, NONE, 0, 0 }, 714 /*49*/ { "rex.wb", FALSE, NONE, 0, 0 }, 715 /*4a*/ { "rex.wx", FALSE, NONE, 0, 0 }, 716 /*4b*/ { "rex.wxb", FALSE, NONE, 0, 0 }, 717 /*4c*/ { "rex.wr", FALSE, NONE, 0, 0 }, 718 /*4d*/ { "rex.wrb", FALSE, NONE, 0, 0 }, 719 /*4e*/ { "rex.wrx", FALSE, NONE, 0, 0 }, 720 /*4f*/ { "rex.wrxb", FALSE, NONE, 0, 0 }, 721 722 /*50*/ { "push", FALSE, LONG, op1(Ri), 0 }, 723 /*51*/ { "push", FALSE, LONG, op1(Ri), 0 }, 724 /*52*/ { "push", FALSE, LONG, op1(Ri), 0 }, 725 /*53*/ { "push", FALSE, LONG, op1(Ri), 0 }, 726 /*54*/ { "push", FALSE, LONG, op1(Ri), 0 }, 727 /*55*/ { "push", FALSE, LONG, op1(Ri), 0 }, 728 /*56*/ { "push", FALSE, LONG, op1(Ri), 0 }, 729 /*57*/ { "push", FALSE, LONG, op1(Ri), 0 }, 730 731 /*58*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 732 /*59*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 733 /*5a*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 734 /*5b*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 735 /*5c*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 736 /*5d*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 737 /*5e*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 738 /*5f*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 739 740 /*60*/ { "pusha", FALSE, LONG, 0, 0 }, 741 /*61*/ { "popa", FALSE, LONG, 0, 0 }, 742 /*62*/ { "bound", TRUE, LONG, op2(E, R), 0 }, 743 /*63*/ { "movslq", TRUE, NONE, op2(EL,R), 0 }, 744 745 /*64*/ { "", FALSE, NONE, 0, 0 }, 746 /*65*/ { "", FALSE, NONE, 0, 0 }, 747 /*66*/ { "", FALSE, NONE, 0, 0 }, 748 /*67*/ { "", FALSE, NONE, 0, 0 }, 749 750 /*68*/ { "push", FALSE, LONG, op1(I), 0 }, 751 /*69*/ { "imul", TRUE, LONG, op3(I,E,R), 0 }, 752 /*6a*/ { "push", FALSE, LONG, op1(Ibs), 0 }, 753 /*6b*/ { "imul", TRUE, LONG, op3(Ibs,E,R),0 }, 754 /*6c*/ { "ins", FALSE, BYTE, op2(DX, DI), 0 }, 755 /*6d*/ { "ins", FALSE, LONG, op2(DX, DI), 0 }, 756 /*6e*/ { "outs", FALSE, BYTE, op2(SI, DX), 0 }, 757 /*6f*/ { "outs", FALSE, LONG, op2(SI, DX), 0 }, 758 759 /*70*/ { "jo", FALSE, NONE, op1(Db), 0 }, 760 /*71*/ { "jno", FALSE, NONE, op1(Db), 0 }, 761 /*72*/ { "jb", FALSE, NONE, op1(Db), 0 }, 762 /*73*/ { "jnb", FALSE, NONE, op1(Db), 0 }, 763 /*74*/ { "jz", FALSE, NONE, op1(Db), 0 }, 764 /*75*/ { "jnz", FALSE, NONE, op1(Db), 0 }, 765 /*76*/ { "jbe", FALSE, NONE, op1(Db), 0 }, 766 /*77*/ { "jnbe", FALSE, NONE, op1(Db), 0 }, 767 768 /*78*/ { "js", FALSE, NONE, op1(Db), 0 }, 769 /*79*/ { "jns", FALSE, NONE, op1(Db), 0 }, 770 /*7a*/ { "jp", FALSE, NONE, op1(Db), 0 }, 771 /*7b*/ { "jnp", FALSE, NONE, op1(Db), 0 }, 772 /*7c*/ { "jl", FALSE, NONE, op1(Db), 0 }, 773 /*7d*/ { "jnl", FALSE, NONE, op1(Db), 0 }, 774 /*7e*/ { "jle", FALSE, NONE, op1(Db), 0 }, 775 /*7f*/ { "jnle", FALSE, NONE, op1(Db), 0 }, 776 777 /*80*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 }, 778 /*81*/ { "", TRUE, LONG, op2(I, E), db_Grp1 }, 779 /*82*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 }, 780 /*83*/ { "", TRUE, LONG, op2(Ibs,E), db_Grp1 }, 781 /*84*/ { "test", TRUE, BYTE, op2(R, E), 0 }, 782 /*85*/ { "test", TRUE, LONG, op2(R, E), 0 }, 783 /*86*/ { "xchg", TRUE, BYTE, op2(R, E), 0 }, 784 /*87*/ { "xchg", TRUE, LONG, op2(R, E), 0 }, 785 786 /*88*/ { "mov", TRUE, BYTE, op2(R, E), 0 }, 787 /*89*/ { "mov", TRUE, LONG, op2(R, E), 0 }, 788 /*8a*/ { "mov", TRUE, BYTE, op2(E, R), 0 }, 789 /*8b*/ { "mov", TRUE, LONG, op2(E, R), 0 }, 790 /*8c*/ { "mov", TRUE, NONE, op2(S, Ew), 0 }, 791 /*8d*/ { "lea", TRUE, LONG, op2(E, R), 0 }, 792 /*8e*/ { "mov", TRUE, NONE, op2(Ew, S), 0 }, 793 /*8f*/ { "pop", TRUE, LONG, op1(E), 0 }, 794 795 /*90*/ { "nop", FALSE, NONE, 0, 0 }, 796 /*91*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 797 /*92*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 798 /*93*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 799 /*94*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 800 /*95*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 801 /*96*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 802 /*97*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 803 804 /*98*/ { "cwde", FALSE, SDEP, 0, "cbw" }, 805 /*99*/ { "cdq", FALSE, SDEP, 0, "cwd" }, 806 /*9a*/ { "lcall", FALSE, NONE, op1(OS), 0 }, 807 /*9b*/ { "wait", FALSE, NONE, 0, 0 }, 808 /*9c*/ { "pushf", FALSE, LONG, 0, 0 }, 809 /*9d*/ { "popf", FALSE, LONG, 0, 0 }, 810 /*9e*/ { "sahf", FALSE, NONE, 0, 0 }, 811 /*9f*/ { "lahf", FALSE, NONE, 0, 0 }, 812 813 /*a0*/ { "mov", FALSE, BYTE, op2(O, A), 0 }, 814 /*a1*/ { "mov", FALSE, LONG, op2(O, A), 0 }, 815 /*a2*/ { "mov", FALSE, BYTE, op2(A, O), 0 }, 816 /*a3*/ { "mov", FALSE, LONG, op2(A, O), 0 }, 817 /*a4*/ { "movs", FALSE, BYTE, op2(SI,DI), 0 }, 818 /*a5*/ { "movs", FALSE, LONG, op2(SI,DI), 0 }, 819 /*a6*/ { "cmps", FALSE, BYTE, op2(SI,DI), 0 }, 820 /*a7*/ { "cmps", FALSE, LONG, op2(SI,DI), 0 }, 821 822 /*a8*/ { "test", FALSE, BYTE, op2(I, A), 0 }, 823 /*a9*/ { "test", FALSE, LONG, op2(I, A), 0 }, 824 /*aa*/ { "stos", FALSE, BYTE, op1(DI), 0 }, 825 /*ab*/ { "stos", FALSE, LONG, op1(DI), 0 }, 826 /*ac*/ { "lods", FALSE, BYTE, op1(SI), 0 }, 827 /*ad*/ { "lods", FALSE, LONG, op1(SI), 0 }, 828 /*ae*/ { "scas", FALSE, BYTE, op1(SI), 0 }, 829 /*af*/ { "scas", FALSE, LONG, op1(SI), 0 }, 830 831 /*b0*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 832 /*b1*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 833 /*b2*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 834 /*b3*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 835 /*b4*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 836 /*b5*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 837 /*b6*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 838 /*b7*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 839 840 /*b8*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 841 /*b9*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 842 /*ba*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 843 /*bb*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 844 /*bc*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 845 /*bd*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 846 /*be*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 847 /*bf*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 848 849 /*c0*/ { "", TRUE, BYTE, op2(Ib, E), db_Grp2 }, 850 /*c1*/ { "", TRUE, LONG, op2(Ib, E), db_Grp2 }, 851 /*c2*/ { "ret", FALSE, NONE, op1(Iw), 0 }, 852 /*c3*/ { "ret", FALSE, NONE, 0, 0 }, 853 /*c4*/ { "les", TRUE, LONG, op2(E, R), 0 }, 854 /*c5*/ { "lds", TRUE, LONG, op2(E, R), 0 }, 855 /*c6*/ { "mov", TRUE, BYTE, op2(I, E), 0 }, 856 /*c7*/ { "mov", TRUE, LONG, op2(I, E), 0 }, 857 858 /*c8*/ { "enter", FALSE, NONE, op2(Iw, Ib), 0 }, 859 /*c9*/ { "leave", FALSE, NONE, 0, 0 }, 860 /*ca*/ { "lret", FALSE, NONE, op1(Iw), 0 }, 861 /*cb*/ { "lret", FALSE, NONE, 0, 0 }, 862 /*cc*/ { "int", FALSE, NONE, op1(o3), 0 }, 863 /*cd*/ { "int", FALSE, NONE, op1(Ib), 0 }, 864 /*ce*/ { "into", FALSE, NONE, 0, 0 }, 865 /*cf*/ { "iret", FALSE, NONE, 0, 0 }, 866 867 /*d0*/ { "", TRUE, BYTE, op2(o1, E), db_Grp2 }, 868 /*d1*/ { "", TRUE, LONG, op2(o1, E), db_Grp2 }, 869 /*d2*/ { "", TRUE, BYTE, op2(CL, E), db_Grp2 }, 870 /*d3*/ { "", TRUE, LONG, op2(CL, E), db_Grp2 }, 871 /*d4*/ { "aam", FALSE, NONE, op1(Iba), 0 }, 872 /*d5*/ { "aad", FALSE, NONE, op1(Iba), 0 }, 873 /*d6*/ { ".byte\t0xd6", FALSE, NONE, 0, 0 }, 874 /*d7*/ { "xlat", FALSE, BYTE, op1(BX), 0 }, 875 876 /*d8*/ { "", TRUE, NONE, 0, db_Esc8 }, 877 /*d9*/ { "", TRUE, NONE, 0, db_Esc9 }, 878 /*da*/ { "", TRUE, NONE, 0, db_Esca }, 879 /*db*/ { "", TRUE, NONE, 0, db_Escb }, 880 /*dc*/ { "", TRUE, NONE, 0, db_Escc }, 881 /*dd*/ { "", TRUE, NONE, 0, db_Escd }, 882 /*de*/ { "", TRUE, NONE, 0, db_Esce }, 883 /*df*/ { "", TRUE, NONE, 0, db_Escf }, 884 885 /*e0*/ { "loopne",FALSE, NONE, op1(Db), 0 }, 886 /*e1*/ { "loope", FALSE, NONE, op1(Db), 0 }, 887 /*e2*/ { "loop", FALSE, NONE, op1(Db), 0 }, 888 /*e3*/ { "jrcxz", FALSE, ADEP, op1(Db), "jecxz" }, 889 /*e4*/ { "in", FALSE, BYTE, op2(Ib, A), 0 }, 890 /*e5*/ { "in", FALSE, LONG, op2(Ib, A) , 0 }, 891 /*e6*/ { "out", FALSE, BYTE, op2(A, Ib), 0 }, 892 /*e7*/ { "out", FALSE, LONG, op2(A, Ib) , 0 }, 893 894 /*e8*/ { "call", FALSE, NONE, op1(Dl), 0 }, 895 /*e9*/ { "jmp", FALSE, NONE, op1(Dl), 0 }, 896 /*ea*/ { "ljmp", FALSE, NONE, op1(OS), 0 }, 897 /*eb*/ { "jmp", FALSE, NONE, op1(Db), 0 }, 898 /*ec*/ { "in", FALSE, BYTE, op2(DX, A), 0 }, 899 /*ed*/ { "in", FALSE, LONG, op2(DX, A) , 0 }, 900 /*ee*/ { "out", FALSE, BYTE, op2(A, DX), 0 }, 901 /*ef*/ { "out", FALSE, LONG, op2(A, DX) , 0 }, 902 903 /*f0*/ { "", FALSE, NONE, 0, 0 }, 904 /*f1*/ { ".byte\t0xf1", FALSE, NONE, 0, 0 }, 905 /*f2*/ { "", FALSE, NONE, 0, 0 }, 906 /*f3*/ { "", FALSE, NONE, 0, 0 }, 907 /*f4*/ { "hlt", FALSE, NONE, 0, 0 }, 908 /*f5*/ { "cmc", FALSE, NONE, 0, 0 }, 909 /*f6*/ { "", TRUE, BYTE, 0, db_Grp3 }, 910 /*f7*/ { "", TRUE, LONG, 0, db_Grp3 }, 911 912 /*f8*/ { "clc", FALSE, NONE, 0, 0 }, 913 /*f9*/ { "stc", FALSE, NONE, 0, 0 }, 914 /*fa*/ { "cli", FALSE, NONE, 0, 0 }, 915 /*fb*/ { "sti", FALSE, NONE, 0, 0 }, 916 /*fc*/ { "cld", FALSE, NONE, 0, 0 }, 917 /*fd*/ { "std", FALSE, NONE, 0, 0 }, 918 /*fe*/ { "", TRUE, NONE, 0, db_Grp4 }, 919 /*ff*/ { "", TRUE, NONE, 0, db_Grp5 }, 920 }; 921 922 static const struct inst db_bad_inst = 923 { "???", FALSE, NONE, 0, 0 } 924 ; 925 926 #define f_mod(rex, byte) ((byte)>>6) 927 #define f_reg(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_R ? 0x8 : 0x0)) 928 #define f_rm(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0)) 929 930 #define sib_ss(rex, byte) ((byte)>>6) 931 #define sib_index(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_X ? 0x8 : 0x0)) 932 #define sib_base(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0)) 933 934 struct i_addr { 935 int is_reg; /* if reg, reg number is in 'disp' */ 936 int disp; 937 const char * base; 938 const char * index; 939 int ss; 940 }; 941 942 static const char * const db_reg[2][4][16] = { 943 944 {{"%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh", 945 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" }, 946 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di", 947 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" }, 948 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi", 949 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" }, 950 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi", 951 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }}, 952 953 {{"%al", "%cl", "%dl", "%bl", "%spl", "%bpl", "%sil", "%dil", 954 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" }, 955 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di", 956 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" }, 957 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi", 958 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" }, 959 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi", 960 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }} 961 }; 962 963 static const char * const db_seg_reg[8] = { 964 "%es", "%cs", "%ss", "%ds", "%fs", "%gs", "", "" 965 }; 966 967 /* 968 * lengths for size attributes 969 */ 970 static const int db_lengths[] = { 971 1, /* BYTE */ 972 2, /* WORD */ 973 4, /* LONG */ 974 8, /* QUAD */ 975 4, /* SNGL */ 976 8, /* DBLR */ 977 10, /* EXTR */ 978 }; 979 980 #define get_value_inc(result, loc, size, is_signed) \ 981 result = db_get_value((loc), (size), (is_signed)); \ 982 (loc) += (size); 983 984 static db_addr_t 985 db_disasm_esc(db_addr_t loc, int inst, int rex, int short_addr, 986 int size, const char *seg); 987 static void db_print_address(const char *seg, int size, int rex, 988 struct i_addr *addrp); 989 static db_addr_t 990 db_read_address(db_addr_t loc, int short_addr, int rex, int regmodrm, 991 struct i_addr *addrp); 992 993 /* 994 * Read address at location and return updated location. 995 */ 996 static db_addr_t 997 db_read_address(loc, short_addr, rex, regmodrm, addrp) 998 db_addr_t loc; 999 int short_addr; 1000 int rex; 1001 int regmodrm; 1002 struct i_addr * addrp; /* out */ 1003 { 1004 int mod, rm, sib, index, disp, size, have_sib; 1005 1006 mod = f_mod(rex, regmodrm); 1007 rm = f_rm(rex, regmodrm); 1008 1009 if (mod == 3) { 1010 addrp->is_reg = TRUE; 1011 addrp->disp = rm; 1012 return (loc); 1013 } 1014 addrp->is_reg = FALSE; 1015 addrp->index = 0; 1016 1017 if (short_addr) 1018 size = LONG; 1019 else 1020 size = QUAD; 1021 1022 if ((rm & 0x7) == 4) { 1023 get_value_inc(sib, loc, 1, FALSE); 1024 rm = sib_base(rex, sib); 1025 index = sib_index(rex, sib); 1026 if (index != 4) 1027 addrp->index = db_reg[1][size][index]; 1028 addrp->ss = sib_ss(rex, sib); 1029 have_sib = 1; 1030 } else 1031 have_sib = 0; 1032 1033 switch (mod) { 1034 case 0: 1035 if (rm == 5) { 1036 get_value_inc(addrp->disp, loc, 4, FALSE); 1037 if (have_sib) 1038 addrp->base = 0; 1039 else if (short_addr) 1040 addrp->base = "%eip"; 1041 else 1042 addrp->base = "%rip"; 1043 } else { 1044 addrp->disp = 0; 1045 addrp->base = db_reg[1][size][rm]; 1046 } 1047 break; 1048 1049 case 1: 1050 get_value_inc(disp, loc, 1, TRUE); 1051 addrp->disp = disp; 1052 addrp->base = db_reg[1][size][rm]; 1053 break; 1054 1055 case 2: 1056 get_value_inc(disp, loc, 4, FALSE); 1057 addrp->disp = disp; 1058 addrp->base = db_reg[1][size][rm]; 1059 break; 1060 } 1061 return (loc); 1062 } 1063 1064 static void 1065 db_print_address(seg, size, rex, addrp) 1066 const char * seg; 1067 int size; 1068 int rex; 1069 struct i_addr * addrp; 1070 { 1071 if (addrp->is_reg) { 1072 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][addrp->disp]); 1073 return; 1074 } 1075 1076 if (seg) { 1077 db_printf("%s:", seg); 1078 } 1079 1080 if (addrp->disp != 0 || (addrp->base == 0 && addrp->index == 0)) 1081 db_printsym((db_addr_t)addrp->disp, DB_STGY_ANY); 1082 if (addrp->base != 0 || addrp->index != 0) { 1083 db_printf("("); 1084 if (addrp->base) 1085 db_printf("%s", addrp->base); 1086 if (addrp->index) 1087 db_printf(",%s,%d", addrp->index, 1<<addrp->ss); 1088 db_printf(")"); 1089 } 1090 } 1091 1092 /* 1093 * Disassemble floating-point ("escape") instruction 1094 * and return updated location. 1095 */ 1096 static db_addr_t 1097 db_disasm_esc(loc, inst, rex, short_addr, size, seg) 1098 db_addr_t loc; 1099 int inst; 1100 int rex; 1101 int short_addr; 1102 int size; 1103 const char * seg; 1104 { 1105 int regmodrm; 1106 const struct finst * fp; 1107 int mod; 1108 struct i_addr address; 1109 const char * name; 1110 1111 get_value_inc(regmodrm, loc, 1, FALSE); 1112 fp = &db_Esc_inst[inst - 0xd8][f_reg(rex, regmodrm)]; 1113 mod = f_mod(rex, regmodrm); 1114 if (mod != 3) { 1115 if (*fp->f_name == '\0') { 1116 db_printf("<bad instruction>"); 1117 return (loc); 1118 } 1119 /* 1120 * Normal address modes. 1121 */ 1122 loc = db_read_address(loc, short_addr, rex, regmodrm, &address); 1123 db_printf("%s", fp->f_name); 1124 switch(fp->f_size) { 1125 case SNGL: 1126 db_printf("s"); 1127 break; 1128 case DBLR: 1129 db_printf("l"); 1130 break; 1131 case EXTR: 1132 db_printf("t"); 1133 break; 1134 case WORD: 1135 db_printf("s"); 1136 break; 1137 case LONG: 1138 db_printf("l"); 1139 break; 1140 case QUAD: 1141 db_printf("q"); 1142 break; 1143 default: 1144 break; 1145 } 1146 db_printf("\t"); 1147 db_print_address(seg, BYTE, rex, &address); 1148 } 1149 else { 1150 /* 1151 * 'reg-reg' - special formats 1152 */ 1153 switch (fp->f_rrmode) { 1154 case op2(ST,STI): 1155 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; 1156 db_printf("%s\t%%st,%%st(%d)",name,f_rm(rex, regmodrm)); 1157 break; 1158 case op2(STI,ST): 1159 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; 1160 db_printf("%s\t%%st(%d),%%st",name, f_rm(rex, regmodrm)); 1161 break; 1162 case op1(STI): 1163 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; 1164 db_printf("%s\t%%st(%d)",name, f_rm(rex, regmodrm)); 1165 break; 1166 case op1(X): 1167 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)]; 1168 if (*name == '\0') 1169 goto bad; 1170 db_printf("%s", name); 1171 break; 1172 case op1(XA): 1173 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)]; 1174 if (*name == '\0') 1175 goto bad; 1176 db_printf("%s\t%%ax", name); 1177 break; 1178 default: 1179 bad: 1180 db_printf("<bad instruction>"); 1181 break; 1182 } 1183 } 1184 1185 return (loc); 1186 } 1187 1188 /* 1189 * Disassemble instruction at 'loc'. 'altfmt' specifies an 1190 * (optional) alternate format. Return address of start of 1191 * next instruction. 1192 */ 1193 db_addr_t 1194 db_disasm(loc, altfmt) 1195 db_addr_t loc; 1196 boolean_t altfmt; 1197 { 1198 int inst; 1199 int size; 1200 int short_addr; 1201 const char * seg; 1202 const struct inst * ip; 1203 const char * i_name; 1204 int i_size; 1205 int i_mode; 1206 int rex = 0; 1207 int regmodrm = 0; 1208 boolean_t first; 1209 int displ; 1210 int prefix; 1211 int rep; 1212 int imm; 1213 int imm2; 1214 long imm64; 1215 int len; 1216 struct i_addr address; 1217 1218 get_value_inc(inst, loc, 1, FALSE); 1219 short_addr = FALSE; 1220 size = LONG; 1221 seg = 0; 1222 1223 /* 1224 * Get prefixes 1225 */ 1226 rep = FALSE; 1227 prefix = TRUE; 1228 do { 1229 switch (inst) { 1230 case 0x66: /* data16 */ 1231 size = WORD; 1232 break; 1233 case 0x67: 1234 short_addr = TRUE; 1235 break; 1236 case 0x26: 1237 seg = "%es"; 1238 break; 1239 case 0x36: 1240 seg = "%ss"; 1241 break; 1242 case 0x2e: 1243 seg = "%cs"; 1244 break; 1245 case 0x3e: 1246 seg = "%ds"; 1247 break; 1248 case 0x64: 1249 seg = "%fs"; 1250 break; 1251 case 0x65: 1252 seg = "%gs"; 1253 break; 1254 case 0xf0: 1255 db_printf("lock "); 1256 break; 1257 case 0xf2: 1258 db_printf("repne "); 1259 break; 1260 case 0xf3: 1261 rep = TRUE; 1262 break; 1263 default: 1264 prefix = FALSE; 1265 break; 1266 } 1267 if (inst >= 0x40 && inst < 0x50) { 1268 rex = inst; 1269 prefix = TRUE; 1270 } 1271 if (prefix) { 1272 get_value_inc(inst, loc, 1, FALSE); 1273 } 1274 } while (prefix); 1275 1276 if (inst >= 0xd8 && inst <= 0xdf) { 1277 loc = db_disasm_esc(loc, inst, rex, short_addr, size, seg); 1278 db_printf("\n"); 1279 return (loc); 1280 } 1281 1282 ip = &db_inst_table[inst]; 1283 while (ip->i_size == ESC) { 1284 get_value_inc(inst, loc, 1, FALSE); 1285 ip = ((const struct inst * const *)ip->i_extra)[inst>>4]; 1286 if (ip == 0) { 1287 ip = &db_bad_inst; 1288 } 1289 else { 1290 ip = &ip[inst&0xf]; 1291 } 1292 } 1293 1294 if (ip->i_has_modrm) { 1295 get_value_inc(regmodrm, loc, 1, FALSE); 1296 loc = db_read_address(loc, short_addr, rex, regmodrm, &address); 1297 } 1298 1299 i_name = ip->i_name; 1300 i_size = ip->i_size; 1301 i_mode = ip->i_mode; 1302 1303 if (ip->i_extra == db_Grp1 || ip->i_extra == db_Grp2 || 1304 ip->i_extra == db_Grp6 || ip->i_extra == db_Grp7 || 1305 ip->i_extra == db_Grp8 || ip->i_extra == db_Grp9 || 1306 ip->i_extra == db_Grp15) { 1307 i_name = ((const char * const *)ip->i_extra)[f_reg(rex, regmodrm)]; 1308 } 1309 else if (ip->i_extra == db_Grp3) { 1310 ip = ip->i_extra; 1311 ip = &ip[f_reg(rex, regmodrm)]; 1312 i_name = ip->i_name; 1313 i_mode = ip->i_mode; 1314 } 1315 else if (ip->i_extra == db_Grp4 || ip->i_extra == db_Grp5) { 1316 ip = ip->i_extra; 1317 ip = &ip[f_reg(rex, regmodrm)]; 1318 i_name = ip->i_name; 1319 i_mode = ip->i_mode; 1320 i_size = ip->i_size; 1321 } 1322 1323 /* Special cases that don't fit well in the tables. */ 1324 if (ip->i_extra == db_Grp7 && f_mod(rex, regmodrm) == 3) { 1325 switch (regmodrm) { 1326 case 0xc1: 1327 i_name = "vmcall"; 1328 i_size = NONE; 1329 i_mode = 0; 1330 break; 1331 case 0xc2: 1332 i_name = "vmlaunch"; 1333 i_size = NONE; 1334 i_mode = 0; 1335 break; 1336 case 0xc3: 1337 i_name = "vmresume"; 1338 i_size = NONE; 1339 i_mode = 0; 1340 break; 1341 case 0xc4: 1342 i_name = "vmxoff"; 1343 i_size = NONE; 1344 i_mode = 0; 1345 break; 1346 case 0xc8: 1347 i_name = "monitor"; 1348 i_size = NONE; 1349 i_mode = 0; 1350 break; 1351 case 0xc9: 1352 i_name = "mwait"; 1353 i_size = NONE; 1354 i_mode = 0; 1355 break; 1356 case 0xd0: 1357 i_name = "xgetbv"; 1358 i_size = NONE; 1359 i_mode = 0; 1360 break; 1361 case 0xd1: 1362 i_name = "xsetbv"; 1363 i_size = NONE; 1364 i_mode = 0; 1365 break; 1366 case 0xf8: 1367 i_name = "swapgs"; 1368 i_size = NONE; 1369 i_mode = 0; 1370 break; 1371 case 0xf9: 1372 i_name = "rdtscp"; 1373 i_size = NONE; 1374 i_mode = 0; 1375 break; 1376 } 1377 } 1378 if (ip->i_extra == db_Grp15 && f_mod(rex, regmodrm) == 3) { 1379 i_name = db_Grp15b[f_reg(rex, regmodrm)]; 1380 i_size = NONE; 1381 i_mode = 0; 1382 } 1383 1384 /* Handle instructions identified by mandatory prefixes. */ 1385 if (rep == TRUE) { 1386 if (inst == 0x90) { 1387 i_name = "pause"; 1388 i_size = NONE; 1389 i_mode = 0; 1390 rep = FALSE; 1391 } else if (ip->i_extra == db_Grp9 && f_mod(rex, regmodrm) != 3 && 1392 f_reg(rex, regmodrm) == 0x6) { 1393 i_name = "vmxon"; 1394 rep = FALSE; 1395 } 1396 } 1397 if (size == WORD) { 1398 if (ip->i_extra == db_Grp9 && f_mod(rex, regmodrm) != 3 && 1399 f_reg(rex, regmodrm) == 0x6) { 1400 i_name = "vmclear"; 1401 } 1402 } 1403 if (rex & REX_W) { 1404 if (strcmp(i_name, "cwde") == 0) 1405 i_name = "cdqe"; 1406 else if (strcmp(i_name, "cmpxchg8b") == 0) 1407 i_name = "cmpxchg16b"; 1408 } 1409 1410 if (rep == TRUE) 1411 db_printf("repe "); /* XXX repe VS rep */ 1412 1413 if (i_size == SDEP) { 1414 if (size == LONG) 1415 db_printf("%s", i_name); 1416 else 1417 db_printf("%s", (const char *)ip->i_extra); 1418 } else if (i_size == ADEP) { 1419 if (short_addr == FALSE) 1420 db_printf("%s", i_name); 1421 else 1422 db_printf("%s", (const char *)ip->i_extra); 1423 } 1424 else { 1425 db_printf("%s", i_name); 1426 if ((inst >= 0x50 && inst <= 0x5f) || inst == 0x68 || inst == 0x6a) { 1427 i_size = NONE; 1428 db_printf("q"); 1429 } 1430 if (i_size != NONE) { 1431 if (i_size == BYTE) { 1432 db_printf("b"); 1433 size = BYTE; 1434 } 1435 else if (i_size == WORD) { 1436 db_printf("w"); 1437 size = WORD; 1438 } 1439 else if (size == WORD) 1440 db_printf("w"); 1441 else { 1442 if (rex & REX_W) 1443 db_printf("q"); 1444 else 1445 db_printf("l"); 1446 } 1447 } 1448 } 1449 db_printf("\t"); 1450 for (first = TRUE; 1451 i_mode != 0; 1452 i_mode >>= 8, first = FALSE) 1453 { 1454 if (!first) 1455 db_printf(","); 1456 1457 switch (i_mode & 0xFF) { 1458 1459 case E: 1460 db_print_address(seg, size, rex, &address); 1461 break; 1462 1463 case Eind: 1464 db_printf("*"); 1465 db_print_address(seg, size, rex, &address); 1466 break; 1467 1468 case El: 1469 db_print_address(seg, (rex & REX_W) ? QUAD : LONG, rex, &address); 1470 break; 1471 1472 case EL: 1473 db_print_address(seg, LONG, 0, &address); 1474 break; 1475 1476 case Ew: 1477 db_print_address(seg, WORD, rex, &address); 1478 break; 1479 1480 case Eb: 1481 db_print_address(seg, BYTE, rex, &address); 1482 break; 1483 1484 case R: 1485 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][f_reg(rex, regmodrm)]); 1486 break; 1487 1488 case Rw: 1489 db_printf("%s", db_reg[rex != 0 ? 1 : 0][WORD][f_reg(rex, regmodrm)]); 1490 break; 1491 1492 case Rq: 1493 db_printf("%s", db_reg[rex != 0 ? 1 : 0][QUAD][f_reg(rex, regmodrm)]); 1494 break; 1495 1496 case Ri: 1497 db_printf("%s", db_reg[0][QUAD][f_rm(rex, inst)]); 1498 break; 1499 1500 case Ril: 1501 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(rex & REX_R) ? QUAD : LONG][f_rm(rex, inst)]); 1502 break; 1503 1504 case S: 1505 db_printf("%s", db_seg_reg[f_reg(rex, regmodrm)]); 1506 break; 1507 1508 case Si: 1509 db_printf("%s", db_seg_reg[f_reg(rex, inst)]); 1510 break; 1511 1512 case A: 1513 db_printf("%s", db_reg[rex != 0 ? 1 : 0][size][0]); /* acc */ 1514 break; 1515 1516 case BX: 1517 if (seg) 1518 db_printf("%s:", seg); 1519 db_printf("(%s)", short_addr ? "%bx" : "%ebx"); 1520 break; 1521 1522 case CL: 1523 db_printf("%%cl"); 1524 break; 1525 1526 case DX: 1527 db_printf("%%dx"); 1528 break; 1529 1530 case SI: 1531 if (seg) 1532 db_printf("%s:", seg); 1533 db_printf("(%s)", short_addr ? "%si" : "%rsi"); 1534 break; 1535 1536 case DI: 1537 db_printf("%%es:(%s)", short_addr ? "%di" : "%rdi"); 1538 break; 1539 1540 case CR: 1541 db_printf("%%cr%d", f_reg(rex, regmodrm)); 1542 break; 1543 1544 case DR: 1545 db_printf("%%dr%d", f_reg(rex, regmodrm)); 1546 break; 1547 1548 case TR: 1549 db_printf("%%tr%d", f_reg(rex, regmodrm)); 1550 break; 1551 1552 case I: 1553 len = db_lengths[size]; 1554 get_value_inc(imm, loc, len, FALSE); 1555 db_printf("$%#r", imm); 1556 break; 1557 1558 case Is: 1559 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size]; 1560 get_value_inc(imm, loc, len, FALSE); 1561 db_printf("$%+#r", imm); 1562 break; 1563 1564 case Ib: 1565 get_value_inc(imm, loc, 1, FALSE); 1566 db_printf("$%#r", imm); 1567 break; 1568 1569 case Iba: 1570 get_value_inc(imm, loc, 1, FALSE); 1571 if (imm != 0x0a) 1572 db_printf("$%#r", imm); 1573 break; 1574 1575 case Ibs: 1576 get_value_inc(imm, loc, 1, TRUE); 1577 if (size == WORD) 1578 imm &= 0xFFFF; 1579 db_printf("$%+#r", imm); 1580 break; 1581 1582 case Iw: 1583 get_value_inc(imm, loc, 2, FALSE); 1584 db_printf("$%#r", imm); 1585 break; 1586 1587 case Ilq: 1588 len = db_lengths[rex & REX_W ? QUAD : LONG]; 1589 get_value_inc(imm64, loc, len, FALSE); 1590 db_printf("$%#lr", imm64); 1591 break; 1592 1593 case O: 1594 len = (short_addr ? 2 : 4); 1595 get_value_inc(displ, loc, len, FALSE); 1596 if (seg) 1597 db_printf("%s:%+#r",seg, displ); 1598 else 1599 db_printsym((db_addr_t)displ, DB_STGY_ANY); 1600 break; 1601 1602 case Db: 1603 get_value_inc(displ, loc, 1, TRUE); 1604 displ += loc; 1605 if (size == WORD) 1606 displ &= 0xFFFF; 1607 db_printsym((db_addr_t)displ, DB_STGY_XTRN); 1608 break; 1609 1610 case Dl: 1611 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size]; 1612 get_value_inc(displ, loc, len, FALSE); 1613 displ += loc; 1614 if (size == WORD) 1615 displ &= 0xFFFF; 1616 db_printsym((db_addr_t)displ, DB_STGY_XTRN); 1617 break; 1618 1619 case o1: 1620 db_printf("$1"); 1621 break; 1622 1623 case o3: 1624 db_printf("$3"); 1625 break; 1626 1627 case OS: 1628 len = db_lengths[size]; 1629 get_value_inc(imm, loc, len, FALSE); /* offset */ 1630 get_value_inc(imm2, loc, 2, FALSE); /* segment */ 1631 db_printf("$%#r,%#r", imm2, imm); 1632 break; 1633 } 1634 } 1635 db_printf("\n"); 1636 return (loc); 1637 }
Cache object: e2f4cb59788d511aa6dc22d81a257925
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