Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/amd64/amd64/db_disasm.c
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
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 35 #include <ddb/ddb.h> 36 #include <ddb/db_access.h> 37 #include <ddb/db_sym.h> 38 39 /* 40 * Size attributes 41 */ 42 #define BYTE 0 43 #define WORD 1 44 #define LONG 2 45 #define QUAD 3 46 #define SNGL 4 47 #define DBLR 5 48 #define EXTR 6 49 #define SDEP 7 50 #define NONE 8 51 52 /* 53 * REX prefix and bits 54 */ 55 #define REX_B 1 56 #define REX_X 2 57 #define REX_R 4 58 #define REX_W 8 59 #define REX 0x40 60 61 /* 62 * Addressing modes 63 */ 64 #define E 1 /* general effective address */ 65 #define Eind 2 /* indirect address (jump, call) */ 66 #define Ew 3 /* address, word size */ 67 #define Eb 4 /* address, byte size */ 68 #define R 5 /* register, in 'reg' field */ 69 #define Rw 6 /* word register, in 'reg' field */ 70 #define Ri 7 /* register in instruction */ 71 #define S 8 /* segment reg, in 'reg' field */ 72 #define Si 9 /* segment reg, in instruction */ 73 #define A 10 /* accumulator */ 74 #define BX 11 /* (bx) */ 75 #define CL 12 /* cl, for shifts */ 76 #define DX 13 /* dx, for IO */ 77 #define SI 14 /* si */ 78 #define DI 15 /* di */ 79 #define CR 16 /* control register */ 80 #define DR 17 /* debug register */ 81 #define TR 18 /* test register */ 82 #define I 19 /* immediate, unsigned */ 83 #define Is 20 /* immediate, signed */ 84 #define Ib 21 /* byte immediate, unsigned */ 85 #define Ibs 22 /* byte immediate, signed */ 86 #define Iw 23 /* word immediate, unsigned */ 87 #define Ilq 24 /* long/quad immediate, unsigned */ 88 #define O 25 /* direct address */ 89 #define Db 26 /* byte displacement from EIP */ 90 #define Dl 27 /* long displacement from EIP */ 91 #define o1 28 /* constant 1 */ 92 #define o3 29 /* constant 3 */ 93 #define OS 30 /* immediate offset/segment */ 94 #define ST 31 /* FP stack top */ 95 #define STI 32 /* FP stack */ 96 #define X 33 /* extended FP op */ 97 #define XA 34 /* for 'fstcw %ax' */ 98 #define El 35 /* address, long/quad size */ 99 #define Ril 36 /* long register in instruction */ 100 #define Iba 37 /* byte immediate, don't print if 0xa */ 101 #define EL 38 /* address, explicitly long size */ 102 103 struct inst { 104 const char * i_name; /* name */ 105 short i_has_modrm; /* has regmodrm byte */ 106 short i_size; /* operand size */ 107 int i_mode; /* addressing modes */ 108 const void * i_extra; /* pointer to extra opcode table */ 109 }; 110 111 #define op1(x) (x) 112 #define op2(x,y) ((x)|((y)<<8)) 113 #define op3(x,y,z) ((x)|((y)<<8)|((z)<<16)) 114 115 struct finst { 116 const char * f_name; /* name for memory instruction */ 117 int f_size; /* size for memory instruction */ 118 int f_rrmode; /* mode for rr instruction */ 119 const void * f_rrname; /* name for rr instruction 120 (or pointer to table) */ 121 }; 122 123 static const char * const db_Grp6[] = { 124 "sldt", 125 "str", 126 "lldt", 127 "ltr", 128 "verr", 129 "verw", 130 "", 131 "" 132 }; 133 134 static const char * const db_Grp7[] = { 135 "sgdt", 136 "sidt", 137 "lgdt", 138 "lidt", 139 "smsw", 140 "", 141 "lmsw", 142 "invlpg" 143 }; 144 145 static const char * const db_Grp8[] = { 146 "", 147 "", 148 "", 149 "", 150 "bt", 151 "bts", 152 "btr", 153 "btc" 154 }; 155 156 static const char * const db_Grp9[] = { 157 "", 158 "cmpxchg8b", 159 "", 160 "", 161 "", 162 "", 163 "", 164 "" 165 }; 166 167 static const struct inst db_inst_0f0x[] = { 168 /*00*/ { "", TRUE, NONE, op1(Ew), db_Grp6 }, 169 /*01*/ { "", TRUE, NONE, op1(Ew), db_Grp7 }, 170 /*02*/ { "lar", TRUE, LONG, op2(E,R), 0 }, 171 /*03*/ { "lsl", TRUE, LONG, op2(E,R), 0 }, 172 /*04*/ { "", FALSE, NONE, 0, 0 }, 173 /*05*/ { "", FALSE, NONE, 0, 0 }, 174 /*06*/ { "clts", FALSE, NONE, 0, 0 }, 175 /*07*/ { "", FALSE, NONE, 0, 0 }, 176 177 /*08*/ { "invd", FALSE, NONE, 0, 0 }, 178 /*09*/ { "wbinvd",FALSE, NONE, 0, 0 }, 179 /*0a*/ { "", FALSE, NONE, 0, 0 }, 180 /*0b*/ { "", FALSE, NONE, 0, 0 }, 181 /*0c*/ { "", FALSE, NONE, 0, 0 }, 182 /*0d*/ { "", FALSE, NONE, 0, 0 }, 183 /*0e*/ { "", FALSE, NONE, 0, 0 }, 184 /*0f*/ { "", FALSE, NONE, 0, 0 }, 185 }; 186 187 static const struct inst db_inst_0f2x[] = { 188 /*20*/ { "mov", TRUE, LONG, op2(CR,El), 0 }, 189 /*21*/ { "mov", TRUE, LONG, op2(DR,El), 0 }, 190 /*22*/ { "mov", TRUE, LONG, op2(El,CR), 0 }, 191 /*23*/ { "mov", TRUE, LONG, op2(El,DR), 0 }, 192 /*24*/ { "mov", TRUE, LONG, op2(TR,El), 0 }, 193 /*25*/ { "", FALSE, NONE, 0, 0 }, 194 /*26*/ { "mov", TRUE, LONG, op2(El,TR), 0 }, 195 /*27*/ { "", FALSE, NONE, 0, 0 }, 196 197 /*28*/ { "", FALSE, NONE, 0, 0 }, 198 /*29*/ { "", FALSE, NONE, 0, 0 }, 199 /*2a*/ { "", FALSE, NONE, 0, 0 }, 200 /*2b*/ { "", FALSE, NONE, 0, 0 }, 201 /*2c*/ { "", FALSE, NONE, 0, 0 }, 202 /*2d*/ { "", FALSE, NONE, 0, 0 }, 203 /*2e*/ { "", FALSE, NONE, 0, 0 }, 204 /*2f*/ { "", FALSE, NONE, 0, 0 }, 205 }; 206 207 static const struct inst db_inst_0f3x[] = { 208 /*30*/ { "wrmsr", FALSE, NONE, 0, 0 }, 209 /*31*/ { "rdtsc", FALSE, NONE, 0, 0 }, 210 /*32*/ { "rdmsr", FALSE, NONE, 0, 0 }, 211 /*33*/ { "rdpmc", FALSE, NONE, 0, 0 }, 212 /*34*/ { "", FALSE, NONE, 0, 0 }, 213 /*35*/ { "", FALSE, NONE, 0, 0 }, 214 /*36*/ { "", FALSE, NONE, 0, 0 }, 215 /*37*/ { "", FALSE, NONE, 0, 0 }, 216 217 /*38*/ { "", FALSE, NONE, 0, 0 }, 218 /*39*/ { "", FALSE, NONE, 0, 0 }, 219 /*3a*/ { "", FALSE, NONE, 0, 0 }, 220 /*3b*/ { "", FALSE, NONE, 0, 0 }, 221 /*3c*/ { "", FALSE, NONE, 0, 0 }, 222 /*3d*/ { "", FALSE, NONE, 0, 0 }, 223 /*3e*/ { "", FALSE, NONE, 0, 0 }, 224 /*3f*/ { "", FALSE, NONE, 0, 0 }, 225 }; 226 227 static const struct inst db_inst_0f4x[] = { 228 /*40*/ { "cmovo", TRUE, NONE, op2(E, R), 0 }, 229 /*41*/ { "cmovno", TRUE, NONE, op2(E, R), 0 }, 230 /*42*/ { "cmovb", TRUE, NONE, op2(E, R), 0 }, 231 /*43*/ { "cmovnb", TRUE, NONE, op2(E, R), 0 }, 232 /*44*/ { "cmovz", TRUE, NONE, op2(E, R), 0 }, 233 /*45*/ { "cmovnz", TRUE, NONE, op2(E, R), 0 }, 234 /*46*/ { "cmovbe", TRUE, NONE, op2(E, R), 0 }, 235 /*47*/ { "cmovnbe",TRUE, NONE, op2(E, R), 0 }, 236 237 /*48*/ { "cmovs", TRUE, NONE, op2(E, R), 0 }, 238 /*49*/ { "cmovns", TRUE, NONE, op2(E, R), 0 }, 239 /*4a*/ { "cmovp", TRUE, NONE, op2(E, R), 0 }, 240 /*4b*/ { "cmovnp", TRUE, NONE, op2(E, R), 0 }, 241 /*4c*/ { "cmovl", TRUE, NONE, op2(E, R), 0 }, 242 /*4d*/ { "cmovnl", TRUE, NONE, op2(E, R), 0 }, 243 /*4e*/ { "cmovle", TRUE, NONE, op2(E, R), 0 }, 244 /*4f*/ { "cmovnle",TRUE, NONE, op2(E, R), 0 }, 245 }; 246 247 static const struct inst db_inst_0f8x[] = { 248 /*80*/ { "jo", FALSE, NONE, op1(Dl), 0 }, 249 /*81*/ { "jno", FALSE, NONE, op1(Dl), 0 }, 250 /*82*/ { "jb", FALSE, NONE, op1(Dl), 0 }, 251 /*83*/ { "jnb", FALSE, NONE, op1(Dl), 0 }, 252 /*84*/ { "jz", FALSE, NONE, op1(Dl), 0 }, 253 /*85*/ { "jnz", FALSE, NONE, op1(Dl), 0 }, 254 /*86*/ { "jbe", FALSE, NONE, op1(Dl), 0 }, 255 /*87*/ { "jnbe", FALSE, NONE, op1(Dl), 0 }, 256 257 /*88*/ { "js", FALSE, NONE, op1(Dl), 0 }, 258 /*89*/ { "jns", FALSE, NONE, op1(Dl), 0 }, 259 /*8a*/ { "jp", FALSE, NONE, op1(Dl), 0 }, 260 /*8b*/ { "jnp", FALSE, NONE, op1(Dl), 0 }, 261 /*8c*/ { "jl", FALSE, NONE, op1(Dl), 0 }, 262 /*8d*/ { "jnl", FALSE, NONE, op1(Dl), 0 }, 263 /*8e*/ { "jle", FALSE, NONE, op1(Dl), 0 }, 264 /*8f*/ { "jnle", FALSE, NONE, op1(Dl), 0 }, 265 }; 266 267 static const struct inst db_inst_0f9x[] = { 268 /*90*/ { "seto", TRUE, NONE, op1(Eb), 0 }, 269 /*91*/ { "setno", TRUE, NONE, op1(Eb), 0 }, 270 /*92*/ { "setb", TRUE, NONE, op1(Eb), 0 }, 271 /*93*/ { "setnb", TRUE, NONE, op1(Eb), 0 }, 272 /*94*/ { "setz", TRUE, NONE, op1(Eb), 0 }, 273 /*95*/ { "setnz", TRUE, NONE, op1(Eb), 0 }, 274 /*96*/ { "setbe", TRUE, NONE, op1(Eb), 0 }, 275 /*97*/ { "setnbe",TRUE, NONE, op1(Eb), 0 }, 276 277 /*98*/ { "sets", TRUE, NONE, op1(Eb), 0 }, 278 /*99*/ { "setns", TRUE, NONE, op1(Eb), 0 }, 279 /*9a*/ { "setp", TRUE, NONE, op1(Eb), 0 }, 280 /*9b*/ { "setnp", TRUE, NONE, op1(Eb), 0 }, 281 /*9c*/ { "setl", TRUE, NONE, op1(Eb), 0 }, 282 /*9d*/ { "setnl", TRUE, NONE, op1(Eb), 0 }, 283 /*9e*/ { "setle", TRUE, NONE, op1(Eb), 0 }, 284 /*9f*/ { "setnle",TRUE, NONE, op1(Eb), 0 }, 285 }; 286 287 static const struct inst db_inst_0fax[] = { 288 /*a0*/ { "push", FALSE, NONE, op1(Si), 0 }, 289 /*a1*/ { "pop", FALSE, NONE, op1(Si), 0 }, 290 /*a2*/ { "cpuid", FALSE, NONE, 0, 0 }, 291 /*a3*/ { "bt", TRUE, LONG, op2(R,E), 0 }, 292 /*a4*/ { "shld", TRUE, LONG, op3(Ib,R,E), 0 }, 293 /*a5*/ { "shld", TRUE, LONG, op3(CL,R,E), 0 }, 294 /*a6*/ { "", FALSE, NONE, 0, 0 }, 295 /*a7*/ { "", FALSE, NONE, 0, 0 }, 296 297 /*a8*/ { "push", FALSE, NONE, op1(Si), 0 }, 298 /*a9*/ { "pop", FALSE, NONE, op1(Si), 0 }, 299 /*aa*/ { "rsm", FALSE, NONE, 0, 0 }, 300 /*ab*/ { "bts", TRUE, LONG, op2(R,E), 0 }, 301 /*ac*/ { "shrd", TRUE, LONG, op3(Ib,R,E), 0 }, 302 /*ad*/ { "shrd", TRUE, LONG, op3(CL,R,E), 0 }, 303 /*a6*/ { "", FALSE, NONE, 0, 0 }, 304 /*a7*/ { "imul", TRUE, LONG, op2(E,R), 0 }, 305 }; 306 307 static const struct inst db_inst_0fbx[] = { 308 /*b0*/ { "cmpxchg",TRUE, BYTE, op2(R, E), 0 }, 309 /*b0*/ { "cmpxchg",TRUE, LONG, op2(R, E), 0 }, 310 /*b2*/ { "lss", TRUE, LONG, op2(E, R), 0 }, 311 /*b3*/ { "btr", TRUE, LONG, op2(R, E), 0 }, 312 /*b4*/ { "lfs", TRUE, LONG, op2(E, R), 0 }, 313 /*b5*/ { "lgs", TRUE, LONG, op2(E, R), 0 }, 314 /*b6*/ { "movzb", TRUE, LONG, op2(Eb, R), 0 }, 315 /*b7*/ { "movzw", TRUE, LONG, op2(Ew, R), 0 }, 316 317 /*b8*/ { "", FALSE, NONE, 0, 0 }, 318 /*b9*/ { "", FALSE, NONE, 0, 0 }, 319 /*ba*/ { "", TRUE, LONG, op2(Ib, E), db_Grp8 }, 320 /*bb*/ { "btc", TRUE, LONG, op2(R, E), 0 }, 321 /*bc*/ { "bsf", TRUE, LONG, op2(E, R), 0 }, 322 /*bd*/ { "bsr", TRUE, LONG, op2(E, R), 0 }, 323 /*be*/ { "movsb", TRUE, LONG, op2(Eb, R), 0 }, 324 /*bf*/ { "movsw", TRUE, LONG, op2(Ew, R), 0 }, 325 }; 326 327 static const struct inst db_inst_0fcx[] = { 328 /*c0*/ { "xadd", TRUE, BYTE, op2(R, E), 0 }, 329 /*c1*/ { "xadd", TRUE, LONG, op2(R, E), 0 }, 330 /*c2*/ { "", FALSE, NONE, 0, 0 }, 331 /*c3*/ { "", FALSE, NONE, 0, 0 }, 332 /*c4*/ { "", FALSE, NONE, 0, 0 }, 333 /*c5*/ { "", FALSE, NONE, 0, 0 }, 334 /*c6*/ { "", FALSE, NONE, 0, 0 }, 335 /*c7*/ { "", TRUE, NONE, op1(E), db_Grp9 }, 336 /*c8*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 337 /*c9*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 338 /*ca*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 339 /*cb*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 340 /*cc*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 341 /*cd*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 342 /*ce*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 343 /*cf*/ { "bswap", FALSE, LONG, op1(Ril), 0 }, 344 }; 345 346 static const struct inst * const db_inst_0f[] = { 347 db_inst_0f0x, 348 0, 349 db_inst_0f2x, 350 db_inst_0f3x, 351 db_inst_0f4x, 352 0, 353 0, 354 0, 355 db_inst_0f8x, 356 db_inst_0f9x, 357 db_inst_0fax, 358 db_inst_0fbx, 359 db_inst_0fcx, 360 0, 361 0, 362 0 363 }; 364 365 static const char * const db_Esc92[] = { 366 "fnop", "", "", "", "", "", "", "" 367 }; 368 static const char * const db_Esc94[] = { 369 "fchs", "fabs", "", "", "ftst", "fxam", "", "" 370 }; 371 static const char * const db_Esc95[] = { 372 "fld1", "fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz","" 373 }; 374 static const char * const db_Esc96[] = { 375 "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp", 376 "fincstp" 377 }; 378 static const char * const db_Esc97[] = { 379 "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos" 380 }; 381 382 static const char * const db_Esca5[] = { 383 "", "fucompp","", "", "", "", "", "" 384 }; 385 386 static const char * const db_Escb4[] = { 387 "fneni","fndisi", "fnclex","fninit","fsetpm", "", "", "" 388 }; 389 390 static const char * const db_Esce3[] = { 391 "", "fcompp","", "", "", "", "", "" 392 }; 393 394 static const char * const db_Escf4[] = { 395 "fnstsw","", "", "", "", "", "", "" 396 }; 397 398 static const struct finst db_Esc8[] = { 399 /**/ { "fadd", SNGL, op2(STI,ST), 0 }, 400 /*1*/ { "fmul", SNGL, op2(STI,ST), 0 }, 401 /*2*/ { "fcom", SNGL, op2(STI,ST), 0 }, 402 /*3*/ { "fcomp", SNGL, op2(STI,ST), 0 }, 403 /*4*/ { "fsub", SNGL, op2(STI,ST), 0 }, 404 /*5*/ { "fsubr", SNGL, op2(STI,ST), 0 }, 405 /*6*/ { "fdiv", SNGL, op2(STI,ST), 0 }, 406 /*7*/ { "fdivr", SNGL, op2(STI,ST), 0 }, 407 }; 408 409 static const struct finst db_Esc9[] = { 410 /**/ { "fld", SNGL, op1(STI), 0 }, 411 /*1*/ { "", NONE, op1(STI), "fxch" }, 412 /*2*/ { "fst", SNGL, op1(X), db_Esc92 }, 413 /*3*/ { "fstp", SNGL, 0, 0 }, 414 /*4*/ { "fldenv", NONE, op1(X), db_Esc94 }, 415 /*5*/ { "fldcw", NONE, op1(X), db_Esc95 }, 416 /*6*/ { "fnstenv",NONE, op1(X), db_Esc96 }, 417 /*7*/ { "fnstcw", NONE, op1(X), db_Esc97 }, 418 }; 419 420 static const struct finst db_Esca[] = { 421 /**/ { "fiadd", LONG, 0, 0 }, 422 /*1*/ { "fimul", LONG, 0, 0 }, 423 /*2*/ { "ficom", LONG, 0, 0 }, 424 /*3*/ { "ficomp", LONG, 0, 0 }, 425 /*4*/ { "fisub", LONG, 0, 0 }, 426 /*5*/ { "fisubr", LONG, op1(X), db_Esca5 }, 427 /*6*/ { "fidiv", LONG, 0, 0 }, 428 /*7*/ { "fidivr", LONG, 0, 0 } 429 }; 430 431 static const struct finst db_Escb[] = { 432 /**/ { "fild", LONG, 0, 0 }, 433 /*1*/ { "", NONE, 0, 0 }, 434 /*2*/ { "fist", LONG, 0, 0 }, 435 /*3*/ { "fistp", LONG, 0, 0 }, 436 /*4*/ { "", WORD, op1(X), db_Escb4 }, 437 /*5*/ { "fld", EXTR, 0, 0 }, 438 /*6*/ { "", WORD, 0, 0 }, 439 /*7*/ { "fstp", EXTR, 0, 0 }, 440 }; 441 442 static const struct finst db_Escc[] = { 443 /**/ { "fadd", DBLR, op2(ST,STI), 0 }, 444 /*1*/ { "fmul", DBLR, op2(ST,STI), 0 }, 445 /*2*/ { "fcom", DBLR, 0, 0 }, 446 /*3*/ { "fcomp", DBLR, 0, 0 }, 447 /*4*/ { "fsub", DBLR, op2(ST,STI), "fsubr" }, 448 /*5*/ { "fsubr", DBLR, op2(ST,STI), "fsub" }, 449 /*6*/ { "fdiv", DBLR, op2(ST,STI), "fdivr" }, 450 /*7*/ { "fdivr", DBLR, op2(ST,STI), "fdiv" }, 451 }; 452 453 static const struct finst db_Escd[] = { 454 /**/ { "fld", DBLR, op1(STI), "ffree" }, 455 /*1*/ { "", NONE, 0, 0 }, 456 /*2*/ { "fst", DBLR, op1(STI), 0 }, 457 /*3*/ { "fstp", DBLR, op1(STI), 0 }, 458 /*4*/ { "frstor", NONE, op1(STI), "fucom" }, 459 /*5*/ { "", NONE, op1(STI), "fucomp" }, 460 /*6*/ { "fnsave", NONE, 0, 0 }, 461 /*7*/ { "fnstsw", NONE, 0, 0 }, 462 }; 463 464 static const struct finst db_Esce[] = { 465 /**/ { "fiadd", WORD, op2(ST,STI), "faddp" }, 466 /*1*/ { "fimul", WORD, op2(ST,STI), "fmulp" }, 467 /*2*/ { "ficom", WORD, 0, 0 }, 468 /*3*/ { "ficomp", WORD, op1(X), db_Esce3 }, 469 /*4*/ { "fisub", WORD, op2(ST,STI), "fsubrp" }, 470 /*5*/ { "fisubr", WORD, op2(ST,STI), "fsubp" }, 471 /*6*/ { "fidiv", WORD, op2(ST,STI), "fdivrp" }, 472 /*7*/ { "fidivr", WORD, op2(ST,STI), "fdivp" }, 473 }; 474 475 static const struct finst db_Escf[] = { 476 /**/ { "fild", WORD, 0, 0 }, 477 /*1*/ { "", NONE, 0, 0 }, 478 /*2*/ { "fist", WORD, 0, 0 }, 479 /*3*/ { "fistp", WORD, 0, 0 }, 480 /*4*/ { "fbld", NONE, op1(XA), db_Escf4 }, 481 /*5*/ { "fild", QUAD, 0, 0 }, 482 /*6*/ { "fbstp", NONE, 0, 0 }, 483 /*7*/ { "fistp", QUAD, 0, 0 }, 484 }; 485 486 static const struct finst * const db_Esc_inst[] = { 487 db_Esc8, db_Esc9, db_Esca, db_Escb, 488 db_Escc, db_Escd, db_Esce, db_Escf 489 }; 490 491 static const char * const db_Grp1[] = { 492 "add", 493 "or", 494 "adc", 495 "sbb", 496 "and", 497 "sub", 498 "xor", 499 "cmp" 500 }; 501 502 static const char * const db_Grp2[] = { 503 "rol", 504 "ror", 505 "rcl", 506 "rcr", 507 "shl", 508 "shr", 509 "shl", 510 "sar" 511 }; 512 513 static const struct inst db_Grp3[] = { 514 { "test", TRUE, NONE, op2(I,E), 0 }, 515 { "test", TRUE, NONE, op2(I,E), 0 }, 516 { "not", TRUE, NONE, op1(E), 0 }, 517 { "neg", TRUE, NONE, op1(E), 0 }, 518 { "mul", TRUE, NONE, op2(E,A), 0 }, 519 { "imul", TRUE, NONE, op2(E,A), 0 }, 520 { "div", TRUE, NONE, op2(E,A), 0 }, 521 { "idiv", TRUE, NONE, op2(E,A), 0 }, 522 }; 523 524 static const struct inst db_Grp4[] = { 525 { "inc", TRUE, BYTE, op1(E), 0 }, 526 { "dec", TRUE, BYTE, op1(E), 0 }, 527 { "", TRUE, NONE, 0, 0 }, 528 { "", TRUE, NONE, 0, 0 }, 529 { "", TRUE, NONE, 0, 0 }, 530 { "", TRUE, NONE, 0, 0 }, 531 { "", TRUE, NONE, 0, 0 }, 532 { "", TRUE, NONE, 0, 0 } 533 }; 534 535 static const struct inst db_Grp5[] = { 536 { "inc", TRUE, LONG, op1(E), 0 }, 537 { "dec", TRUE, LONG, op1(E), 0 }, 538 { "call", TRUE, LONG, op1(Eind),0 }, 539 { "lcall", TRUE, LONG, op1(Eind),0 }, 540 { "jmp", TRUE, LONG, op1(Eind),0 }, 541 { "ljmp", TRUE, LONG, op1(Eind),0 }, 542 { "push", TRUE, LONG, op1(E), 0 }, 543 { "", TRUE, NONE, 0, 0 } 544 }; 545 546 static const struct inst db_inst_table[256] = { 547 /*00*/ { "add", TRUE, BYTE, op2(R, E), 0 }, 548 /*01*/ { "add", TRUE, LONG, op2(R, E), 0 }, 549 /*02*/ { "add", TRUE, BYTE, op2(E, R), 0 }, 550 /*03*/ { "add", TRUE, LONG, op2(E, R), 0 }, 551 /*04*/ { "add", FALSE, BYTE, op2(I, A), 0 }, 552 /*05*/ { "add", FALSE, LONG, op2(Is, A), 0 }, 553 /*06*/ { "push", FALSE, NONE, op1(Si), 0 }, 554 /*07*/ { "pop", FALSE, NONE, op1(Si), 0 }, 555 556 /*08*/ { "or", TRUE, BYTE, op2(R, E), 0 }, 557 /*09*/ { "or", TRUE, LONG, op2(R, E), 0 }, 558 /*0a*/ { "or", TRUE, BYTE, op2(E, R), 0 }, 559 /*0b*/ { "or", TRUE, LONG, op2(E, R), 0 }, 560 /*0c*/ { "or", FALSE, BYTE, op2(I, A), 0 }, 561 /*0d*/ { "or", FALSE, LONG, op2(I, A), 0 }, 562 /*0e*/ { "push", FALSE, NONE, op1(Si), 0 }, 563 /*0f*/ { "", FALSE, NONE, 0, 0 }, 564 565 /*10*/ { "adc", TRUE, BYTE, op2(R, E), 0 }, 566 /*11*/ { "adc", TRUE, LONG, op2(R, E), 0 }, 567 /*12*/ { "adc", TRUE, BYTE, op2(E, R), 0 }, 568 /*13*/ { "adc", TRUE, LONG, op2(E, R), 0 }, 569 /*14*/ { "adc", FALSE, BYTE, op2(I, A), 0 }, 570 /*15*/ { "adc", FALSE, LONG, op2(Is, A), 0 }, 571 /*16*/ { "push", FALSE, NONE, op1(Si), 0 }, 572 /*17*/ { "pop", FALSE, NONE, op1(Si), 0 }, 573 574 /*18*/ { "sbb", TRUE, BYTE, op2(R, E), 0 }, 575 /*19*/ { "sbb", TRUE, LONG, op2(R, E), 0 }, 576 /*1a*/ { "sbb", TRUE, BYTE, op2(E, R), 0 }, 577 /*1b*/ { "sbb", TRUE, LONG, op2(E, R), 0 }, 578 /*1c*/ { "sbb", FALSE, BYTE, op2(I, A), 0 }, 579 /*1d*/ { "sbb", FALSE, LONG, op2(Is, A), 0 }, 580 /*1e*/ { "push", FALSE, NONE, op1(Si), 0 }, 581 /*1f*/ { "pop", FALSE, NONE, op1(Si), 0 }, 582 583 /*20*/ { "and", TRUE, BYTE, op2(R, E), 0 }, 584 /*21*/ { "and", TRUE, LONG, op2(R, E), 0 }, 585 /*22*/ { "and", TRUE, BYTE, op2(E, R), 0 }, 586 /*23*/ { "and", TRUE, LONG, op2(E, R), 0 }, 587 /*24*/ { "and", FALSE, BYTE, op2(I, A), 0 }, 588 /*25*/ { "and", FALSE, LONG, op2(I, A), 0 }, 589 /*26*/ { "", FALSE, NONE, 0, 0 }, 590 /*27*/ { "daa", FALSE, NONE, 0, 0 }, 591 592 /*28*/ { "sub", TRUE, BYTE, op2(R, E), 0 }, 593 /*29*/ { "sub", TRUE, LONG, op2(R, E), 0 }, 594 /*2a*/ { "sub", TRUE, BYTE, op2(E, R), 0 }, 595 /*2b*/ { "sub", TRUE, LONG, op2(E, R), 0 }, 596 /*2c*/ { "sub", FALSE, BYTE, op2(I, A), 0 }, 597 /*2d*/ { "sub", FALSE, LONG, op2(Is, A), 0 }, 598 /*2e*/ { "", FALSE, NONE, 0, 0 }, 599 /*2f*/ { "das", FALSE, NONE, 0, 0 }, 600 601 /*30*/ { "xor", TRUE, BYTE, op2(R, E), 0 }, 602 /*31*/ { "xor", TRUE, LONG, op2(R, E), 0 }, 603 /*32*/ { "xor", TRUE, BYTE, op2(E, R), 0 }, 604 /*33*/ { "xor", TRUE, LONG, op2(E, R), 0 }, 605 /*34*/ { "xor", FALSE, BYTE, op2(I, A), 0 }, 606 /*35*/ { "xor", FALSE, LONG, op2(I, A), 0 }, 607 /*36*/ { "", FALSE, NONE, 0, 0 }, 608 /*37*/ { "aaa", FALSE, NONE, 0, 0 }, 609 610 /*38*/ { "cmp", TRUE, BYTE, op2(R, E), 0 }, 611 /*39*/ { "cmp", TRUE, LONG, op2(R, E), 0 }, 612 /*3a*/ { "cmp", TRUE, BYTE, op2(E, R), 0 }, 613 /*3b*/ { "cmp", TRUE, LONG, op2(E, R), 0 }, 614 /*3c*/ { "cmp", FALSE, BYTE, op2(I, A), 0 }, 615 /*3d*/ { "cmp", FALSE, LONG, op2(Is, A), 0 }, 616 /*3e*/ { "", FALSE, NONE, 0, 0 }, 617 /*3f*/ { "aas", FALSE, NONE, 0, 0 }, 618 619 /*40*/ { "rex", FALSE, NONE, 0, 0 }, 620 /*41*/ { "rex.b", FALSE, NONE, 0, 0 }, 621 /*42*/ { "rex.x", FALSE, NONE, 0, 0 }, 622 /*43*/ { "rex.xb", FALSE, NONE, 0, 0 }, 623 /*44*/ { "rex.r", FALSE, NONE, 0, 0 }, 624 /*45*/ { "rex.rb", FALSE, NONE, 0, 0 }, 625 /*46*/ { "rex.rx", FALSE, NONE, 0, 0 }, 626 /*47*/ { "rex.rxb", FALSE, NONE, 0, 0 }, 627 628 /*48*/ { "rex.w", FALSE, NONE, 0, 0 }, 629 /*49*/ { "rex.wb", FALSE, NONE, 0, 0 }, 630 /*4a*/ { "rex.wx", FALSE, NONE, 0, 0 }, 631 /*4b*/ { "rex.wxb", FALSE, NONE, 0, 0 }, 632 /*4c*/ { "rex.wr", FALSE, NONE, 0, 0 }, 633 /*4d*/ { "rex.wrb", FALSE, NONE, 0, 0 }, 634 /*4e*/ { "rex.wrx", FALSE, NONE, 0, 0 }, 635 /*4f*/ { "rex.wrxb", FALSE, NONE, 0, 0 }, 636 637 /*50*/ { "push", FALSE, LONG, op1(Ri), 0 }, 638 /*51*/ { "push", FALSE, LONG, op1(Ri), 0 }, 639 /*52*/ { "push", FALSE, LONG, op1(Ri), 0 }, 640 /*53*/ { "push", FALSE, LONG, op1(Ri), 0 }, 641 /*54*/ { "push", FALSE, LONG, op1(Ri), 0 }, 642 /*55*/ { "push", FALSE, LONG, op1(Ri), 0 }, 643 /*56*/ { "push", FALSE, LONG, op1(Ri), 0 }, 644 /*57*/ { "push", FALSE, LONG, op1(Ri), 0 }, 645 646 /*58*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 647 /*59*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 648 /*5a*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 649 /*5b*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 650 /*5c*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 651 /*5d*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 652 /*5e*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 653 /*5f*/ { "pop", FALSE, LONG, op1(Ri), 0 }, 654 655 /*60*/ { "pusha", FALSE, LONG, 0, 0 }, 656 /*61*/ { "popa", FALSE, LONG, 0, 0 }, 657 /*62*/ { "bound", TRUE, LONG, op2(E, R), 0 }, 658 /*63*/ { "movslq", TRUE, NONE, op2(EL,R), 0 }, 659 660 /*64*/ { "", FALSE, NONE, 0, 0 }, 661 /*65*/ { "", FALSE, NONE, 0, 0 }, 662 /*66*/ { "", FALSE, NONE, 0, 0 }, 663 /*67*/ { "", FALSE, NONE, 0, 0 }, 664 665 /*68*/ { "push", FALSE, LONG, op1(I), 0 }, 666 /*69*/ { "imul", TRUE, LONG, op3(I,E,R), 0 }, 667 /*6a*/ { "push", FALSE, LONG, op1(Ibs), 0 }, 668 /*6b*/ { "imul", TRUE, LONG, op3(Ibs,E,R),0 }, 669 /*6c*/ { "ins", FALSE, BYTE, op2(DX, DI), 0 }, 670 /*6d*/ { "ins", FALSE, LONG, op2(DX, DI), 0 }, 671 /*6e*/ { "outs", FALSE, BYTE, op2(SI, DX), 0 }, 672 /*6f*/ { "outs", FALSE, LONG, op2(SI, DX), 0 }, 673 674 /*70*/ { "jo", FALSE, NONE, op1(Db), 0 }, 675 /*71*/ { "jno", FALSE, NONE, op1(Db), 0 }, 676 /*72*/ { "jb", FALSE, NONE, op1(Db), 0 }, 677 /*73*/ { "jnb", FALSE, NONE, op1(Db), 0 }, 678 /*74*/ { "jz", FALSE, NONE, op1(Db), 0 }, 679 /*75*/ { "jnz", FALSE, NONE, op1(Db), 0 }, 680 /*76*/ { "jbe", FALSE, NONE, op1(Db), 0 }, 681 /*77*/ { "jnbe", FALSE, NONE, op1(Db), 0 }, 682 683 /*78*/ { "js", FALSE, NONE, op1(Db), 0 }, 684 /*79*/ { "jns", FALSE, NONE, op1(Db), 0 }, 685 /*7a*/ { "jp", FALSE, NONE, op1(Db), 0 }, 686 /*7b*/ { "jnp", FALSE, NONE, op1(Db), 0 }, 687 /*7c*/ { "jl", FALSE, NONE, op1(Db), 0 }, 688 /*7d*/ { "jnl", FALSE, NONE, op1(Db), 0 }, 689 /*7e*/ { "jle", FALSE, NONE, op1(Db), 0 }, 690 /*7f*/ { "jnle", FALSE, NONE, op1(Db), 0 }, 691 692 /*80*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 }, 693 /*81*/ { "", TRUE, LONG, op2(I, E), db_Grp1 }, 694 /*82*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 }, 695 /*83*/ { "", TRUE, LONG, op2(Ibs,E), db_Grp1 }, 696 /*84*/ { "test", TRUE, BYTE, op2(R, E), 0 }, 697 /*85*/ { "test", TRUE, LONG, op2(R, E), 0 }, 698 /*86*/ { "xchg", TRUE, BYTE, op2(R, E), 0 }, 699 /*87*/ { "xchg", TRUE, LONG, op2(R, E), 0 }, 700 701 /*88*/ { "mov", TRUE, BYTE, op2(R, E), 0 }, 702 /*89*/ { "mov", TRUE, LONG, op2(R, E), 0 }, 703 /*8a*/ { "mov", TRUE, BYTE, op2(E, R), 0 }, 704 /*8b*/ { "mov", TRUE, LONG, op2(E, R), 0 }, 705 /*8c*/ { "mov", TRUE, NONE, op2(S, Ew), 0 }, 706 /*8d*/ { "lea", TRUE, LONG, op2(E, R), 0 }, 707 /*8e*/ { "mov", TRUE, NONE, op2(Ew, S), 0 }, 708 /*8f*/ { "pop", TRUE, LONG, op1(E), 0 }, 709 710 /*90*/ { "nop", FALSE, NONE, 0, 0 }, 711 /*91*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 712 /*92*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 713 /*93*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 714 /*94*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 715 /*95*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 716 /*96*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 717 /*97*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 }, 718 719 /*98*/ { "cbw", FALSE, SDEP, 0, "cwde" }, /* cbw/cwde */ 720 /*99*/ { "cwd", FALSE, SDEP, 0, "cdq" }, /* cwd/cdq */ 721 /*9a*/ { "lcall", FALSE, NONE, op1(OS), 0 }, 722 /*9b*/ { "wait", FALSE, NONE, 0, 0 }, 723 /*9c*/ { "pushf", FALSE, LONG, 0, 0 }, 724 /*9d*/ { "popf", FALSE, LONG, 0, 0 }, 725 /*9e*/ { "sahf", FALSE, NONE, 0, 0 }, 726 /*9f*/ { "lahf", FALSE, NONE, 0, 0 }, 727 728 /*a0*/ { "mov", FALSE, BYTE, op2(O, A), 0 }, 729 /*a1*/ { "mov", FALSE, LONG, op2(O, A), 0 }, 730 /*a2*/ { "mov", FALSE, BYTE, op2(A, O), 0 }, 731 /*a3*/ { "mov", FALSE, LONG, op2(A, O), 0 }, 732 /*a4*/ { "movs", FALSE, BYTE, op2(SI,DI), 0 }, 733 /*a5*/ { "movs", FALSE, LONG, op2(SI,DI), 0 }, 734 /*a6*/ { "cmps", FALSE, BYTE, op2(SI,DI), 0 }, 735 /*a7*/ { "cmps", FALSE, LONG, op2(SI,DI), 0 }, 736 737 /*a8*/ { "test", FALSE, BYTE, op2(I, A), 0 }, 738 /*a9*/ { "test", FALSE, LONG, op2(I, A), 0 }, 739 /*aa*/ { "stos", FALSE, BYTE, op1(DI), 0 }, 740 /*ab*/ { "stos", FALSE, LONG, op1(DI), 0 }, 741 /*ac*/ { "lods", FALSE, BYTE, op1(SI), 0 }, 742 /*ad*/ { "lods", FALSE, LONG, op1(SI), 0 }, 743 /*ae*/ { "scas", FALSE, BYTE, op1(SI), 0 }, 744 /*af*/ { "scas", FALSE, LONG, op1(SI), 0 }, 745 746 /*b0*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 747 /*b1*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 748 /*b2*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 749 /*b3*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 750 /*b4*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 751 /*b5*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 752 /*b6*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 753 /*b7*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 }, 754 755 /*b8*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 756 /*b9*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 757 /*ba*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 758 /*bb*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 759 /*bc*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 760 /*bd*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 761 /*be*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 762 /*bf*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 }, 763 764 /*c0*/ { "", TRUE, BYTE, op2(Ib, E), db_Grp2 }, 765 /*c1*/ { "", TRUE, LONG, op2(Ib, E), db_Grp2 }, 766 /*c2*/ { "ret", FALSE, NONE, op1(Iw), 0 }, 767 /*c3*/ { "ret", FALSE, NONE, 0, 0 }, 768 /*c4*/ { "les", TRUE, LONG, op2(E, R), 0 }, 769 /*c5*/ { "lds", TRUE, LONG, op2(E, R), 0 }, 770 /*c6*/ { "mov", TRUE, BYTE, op2(I, E), 0 }, 771 /*c7*/ { "mov", TRUE, LONG, op2(I, E), 0 }, 772 773 /*c8*/ { "enter", FALSE, NONE, op2(Iw, Ib), 0 }, 774 /*c9*/ { "leave", FALSE, NONE, 0, 0 }, 775 /*ca*/ { "lret", FALSE, NONE, op1(Iw), 0 }, 776 /*cb*/ { "lret", FALSE, NONE, 0, 0 }, 777 /*cc*/ { "int", FALSE, NONE, op1(o3), 0 }, 778 /*cd*/ { "int", FALSE, NONE, op1(Ib), 0 }, 779 /*ce*/ { "into", FALSE, NONE, 0, 0 }, 780 /*cf*/ { "iret", FALSE, NONE, 0, 0 }, 781 782 /*d0*/ { "", TRUE, BYTE, op2(o1, E), db_Grp2 }, 783 /*d1*/ { "", TRUE, LONG, op2(o1, E), db_Grp2 }, 784 /*d2*/ { "", TRUE, BYTE, op2(CL, E), db_Grp2 }, 785 /*d3*/ { "", TRUE, LONG, op2(CL, E), db_Grp2 }, 786 /*d4*/ { "aam", FALSE, NONE, op1(Iba), 0 }, 787 /*d5*/ { "aad", FALSE, NONE, op1(Iba), 0 }, 788 /*d6*/ { ".byte\t0xd6", FALSE, NONE, 0, 0 }, 789 /*d7*/ { "xlat", FALSE, BYTE, op1(BX), 0 }, 790 791 /*d8*/ { "", TRUE, NONE, 0, db_Esc8 }, 792 /*d9*/ { "", TRUE, NONE, 0, db_Esc9 }, 793 /*da*/ { "", TRUE, NONE, 0, db_Esca }, 794 /*db*/ { "", TRUE, NONE, 0, db_Escb }, 795 /*dc*/ { "", TRUE, NONE, 0, db_Escc }, 796 /*dd*/ { "", TRUE, NONE, 0, db_Escd }, 797 /*de*/ { "", TRUE, NONE, 0, db_Esce }, 798 /*df*/ { "", TRUE, NONE, 0, db_Escf }, 799 800 /*e0*/ { "loopne",FALSE, NONE, op1(Db), 0 }, 801 /*e1*/ { "loope", FALSE, NONE, op1(Db), 0 }, 802 /*e2*/ { "loop", FALSE, NONE, op1(Db), 0 }, 803 /*e3*/ { "jcxz", FALSE, SDEP, op1(Db), "jecxz" }, 804 /*e4*/ { "in", FALSE, BYTE, op2(Ib, A), 0 }, 805 /*e5*/ { "in", FALSE, LONG, op2(Ib, A) , 0 }, 806 /*e6*/ { "out", FALSE, BYTE, op2(A, Ib), 0 }, 807 /*e7*/ { "out", FALSE, LONG, op2(A, Ib) , 0 }, 808 809 /*e8*/ { "call", FALSE, NONE, op1(Dl), 0 }, 810 /*e9*/ { "jmp", FALSE, NONE, op1(Dl), 0 }, 811 /*ea*/ { "ljmp", FALSE, NONE, op1(OS), 0 }, 812 /*eb*/ { "jmp", FALSE, NONE, op1(Db), 0 }, 813 /*ec*/ { "in", FALSE, BYTE, op2(DX, A), 0 }, 814 /*ed*/ { "in", FALSE, LONG, op2(DX, A) , 0 }, 815 /*ee*/ { "out", FALSE, BYTE, op2(A, DX), 0 }, 816 /*ef*/ { "out", FALSE, LONG, op2(A, DX) , 0 }, 817 818 /*f0*/ { "", FALSE, NONE, 0, 0 }, 819 /*f1*/ { ".byte\t0xf1", FALSE, NONE, 0, 0 }, 820 /*f2*/ { "", FALSE, NONE, 0, 0 }, 821 /*f3*/ { "", FALSE, NONE, 0, 0 }, 822 /*f4*/ { "hlt", FALSE, NONE, 0, 0 }, 823 /*f5*/ { "cmc", FALSE, NONE, 0, 0 }, 824 /*f6*/ { "", TRUE, BYTE, 0, db_Grp3 }, 825 /*f7*/ { "", TRUE, LONG, 0, db_Grp3 }, 826 827 /*f8*/ { "clc", FALSE, NONE, 0, 0 }, 828 /*f9*/ { "stc", FALSE, NONE, 0, 0 }, 829 /*fa*/ { "cli", FALSE, NONE, 0, 0 }, 830 /*fb*/ { "sti", FALSE, NONE, 0, 0 }, 831 /*fc*/ { "cld", FALSE, NONE, 0, 0 }, 832 /*fd*/ { "std", FALSE, NONE, 0, 0 }, 833 /*fe*/ { "", TRUE, NONE, 0, db_Grp4 }, 834 /*ff*/ { "", TRUE, NONE, 0, db_Grp5 }, 835 }; 836 837 static const struct inst db_bad_inst = 838 { "???", FALSE, NONE, 0, 0 } 839 ; 840 841 #define f_mod(rex, byte) ((byte)>>6) 842 #define f_reg(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_R ? 0x8 : 0x0)) 843 #define f_rm(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0)) 844 845 #define sib_ss(rex, byte) ((byte)>>6) 846 #define sib_index(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_X ? 0x8 : 0x0)) 847 #define sib_base(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0)) 848 849 struct i_addr { 850 int is_reg; /* if reg, reg number is in 'disp' */ 851 int disp; 852 const char * base; 853 const char * index; 854 int ss; 855 }; 856 857 static const char * const db_reg[2][4][16] = { 858 859 {{"%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh", 860 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" }, 861 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di", 862 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" }, 863 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi", 864 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" }, 865 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi", 866 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }}, 867 868 {{"%al", "%cl", "%dl", "%bl", "%spl", "%bpl", "%sil", "%dil", 869 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" }, 870 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di", 871 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" }, 872 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi", 873 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" }, 874 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi", 875 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }} 876 }; 877 878 static const char * const db_seg_reg[8] = { 879 "%es", "%cs", "%ss", "%ds", "%fs", "%gs", "", "" 880 }; 881 882 /* 883 * lengths for size attributes 884 */ 885 static const int db_lengths[] = { 886 1, /* BYTE */ 887 2, /* WORD */ 888 4, /* LONG */ 889 8, /* QUAD */ 890 4, /* SNGL */ 891 8, /* DBLR */ 892 10, /* EXTR */ 893 }; 894 895 #define get_value_inc(result, loc, size, is_signed) \ 896 result = db_get_value((loc), (size), (is_signed)); \ 897 (loc) += (size); 898 899 static db_addr_t 900 db_disasm_esc(db_addr_t loc, int inst, int rex, int short_addr, 901 int size, const char *seg); 902 static void db_print_address(const char *seg, int size, int rex, 903 struct i_addr *addrp); 904 static db_addr_t 905 db_read_address(db_addr_t loc, int short_addr, int rex, int regmodrm, 906 struct i_addr *addrp); 907 908 /* 909 * Read address at location and return updated location. 910 */ 911 static db_addr_t 912 db_read_address(loc, short_addr, rex, regmodrm, addrp) 913 db_addr_t loc; 914 int short_addr; 915 int rex; 916 int regmodrm; 917 struct i_addr * addrp; /* out */ 918 { 919 int mod, rm, sib, index, disp, size, have_sib; 920 921 mod = f_mod(rex, regmodrm); 922 rm = f_rm(rex, regmodrm); 923 924 if (mod == 3) { 925 addrp->is_reg = TRUE; 926 addrp->disp = rm; 927 return (loc); 928 } 929 addrp->is_reg = FALSE; 930 addrp->index = 0; 931 932 if (short_addr) 933 size = LONG; 934 else 935 size = QUAD; 936 937 if ((rm & 0x7) == 4) { 938 get_value_inc(sib, loc, 1, FALSE); 939 rm = sib_base(rex, sib); 940 index = sib_index(rex, sib); 941 if (index != 4) 942 addrp->index = db_reg[1][size][index]; 943 addrp->ss = sib_ss(rex, sib); 944 have_sib = 1; 945 } else 946 have_sib = 0; 947 948 switch (mod) { 949 case 0: 950 if (rm == 5) { 951 get_value_inc(addrp->disp, loc, 4, FALSE); 952 if (have_sib) 953 addrp->base = 0; 954 else if (short_addr) 955 addrp->base = "%eip"; 956 else 957 addrp->base = "%rip"; 958 } else { 959 addrp->disp = 0; 960 addrp->base = db_reg[1][size][rm]; 961 } 962 break; 963 964 case 1: 965 get_value_inc(disp, loc, 1, TRUE); 966 addrp->disp = disp; 967 addrp->base = db_reg[1][size][rm]; 968 break; 969 970 case 2: 971 get_value_inc(disp, loc, 4, FALSE); 972 addrp->disp = disp; 973 addrp->base = db_reg[1][size][rm]; 974 break; 975 } 976 return (loc); 977 } 978 979 static void 980 db_print_address(seg, size, rex, addrp) 981 const char * seg; 982 int size; 983 int rex; 984 struct i_addr * addrp; 985 { 986 if (addrp->is_reg) { 987 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][addrp->disp]); 988 return; 989 } 990 991 if (seg) { 992 db_printf("%s:", seg); 993 } 994 995 if (addrp->disp != 0 || (addrp->base == 0 && addrp->index == 0)) 996 db_printsym((db_addr_t)addrp->disp, DB_STGY_ANY); 997 if (addrp->base != 0 || addrp->index != 0) { 998 db_printf("("); 999 if (addrp->base) 1000 db_printf("%s", addrp->base); 1001 if (addrp->index) 1002 db_printf(",%s,%d", addrp->index, 1<<addrp->ss); 1003 db_printf(")"); 1004 } 1005 } 1006 1007 /* 1008 * Disassemble floating-point ("escape") instruction 1009 * and return updated location. 1010 */ 1011 static db_addr_t 1012 db_disasm_esc(loc, inst, rex, short_addr, size, seg) 1013 db_addr_t loc; 1014 int inst; 1015 int rex; 1016 int short_addr; 1017 int size; 1018 const char * seg; 1019 { 1020 int regmodrm; 1021 const struct finst * fp; 1022 int mod; 1023 struct i_addr address; 1024 const char * name; 1025 1026 get_value_inc(regmodrm, loc, 1, FALSE); 1027 fp = &db_Esc_inst[inst - 0xd8][f_reg(rex, regmodrm)]; 1028 mod = f_mod(rex, regmodrm); 1029 if (mod != 3) { 1030 if (*fp->f_name == '\0') { 1031 db_printf("<bad instruction>"); 1032 return (loc); 1033 } 1034 /* 1035 * Normal address modes. 1036 */ 1037 loc = db_read_address(loc, short_addr, rex, regmodrm, &address); 1038 db_printf("%s", fp->f_name); 1039 switch(fp->f_size) { 1040 case SNGL: 1041 db_printf("s"); 1042 break; 1043 case DBLR: 1044 db_printf("l"); 1045 break; 1046 case EXTR: 1047 db_printf("t"); 1048 break; 1049 case WORD: 1050 db_printf("s"); 1051 break; 1052 case LONG: 1053 db_printf("l"); 1054 break; 1055 case QUAD: 1056 db_printf("q"); 1057 break; 1058 default: 1059 break; 1060 } 1061 db_printf("\t"); 1062 db_print_address(seg, BYTE, rex, &address); 1063 } 1064 else { 1065 /* 1066 * 'reg-reg' - special formats 1067 */ 1068 switch (fp->f_rrmode) { 1069 case op2(ST,STI): 1070 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; 1071 db_printf("%s\t%%st,%%st(%d)",name,f_rm(rex, regmodrm)); 1072 break; 1073 case op2(STI,ST): 1074 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; 1075 db_printf("%s\t%%st(%d),%%st",name, f_rm(rex, regmodrm)); 1076 break; 1077 case op1(STI): 1078 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; 1079 db_printf("%s\t%%st(%d)",name, f_rm(rex, regmodrm)); 1080 break; 1081 case op1(X): 1082 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)]; 1083 if (*name == '\0') 1084 goto bad; 1085 db_printf("%s", name); 1086 break; 1087 case op1(XA): 1088 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)]; 1089 if (*name == '\0') 1090 goto bad; 1091 db_printf("%s\t%%ax", name); 1092 break; 1093 default: 1094 bad: 1095 db_printf("<bad instruction>"); 1096 break; 1097 } 1098 } 1099 1100 return (loc); 1101 } 1102 1103 /* 1104 * Disassemble instruction at 'loc'. 'altfmt' specifies an 1105 * (optional) alternate format. Return address of start of 1106 * next instruction. 1107 */ 1108 db_addr_t 1109 db_disasm(loc, altfmt) 1110 db_addr_t loc; 1111 boolean_t altfmt; 1112 { 1113 int inst; 1114 int size; 1115 int short_addr; 1116 const char * seg; 1117 const struct inst * ip; 1118 const char * i_name; 1119 int i_size; 1120 int i_mode; 1121 int rex = 0; 1122 int regmodrm = 0; 1123 boolean_t first; 1124 int displ; 1125 int prefix; 1126 int imm; 1127 int imm2; 1128 long imm64; 1129 int len; 1130 struct i_addr address; 1131 1132 get_value_inc(inst, loc, 1, FALSE); 1133 short_addr = FALSE; 1134 size = LONG; 1135 seg = 0; 1136 1137 /* 1138 * Get prefixes 1139 */ 1140 prefix = TRUE; 1141 do { 1142 switch (inst) { 1143 case 0x66: /* data16 */ 1144 size = WORD; 1145 break; 1146 case 0x67: 1147 short_addr = TRUE; 1148 break; 1149 case 0x26: 1150 seg = "%es"; 1151 break; 1152 case 0x36: 1153 seg = "%ss"; 1154 break; 1155 case 0x2e: 1156 seg = "%cs"; 1157 break; 1158 case 0x3e: 1159 seg = "%ds"; 1160 break; 1161 case 0x64: 1162 seg = "%fs"; 1163 break; 1164 case 0x65: 1165 seg = "%gs"; 1166 break; 1167 case 0xf0: 1168 db_printf("lock "); 1169 break; 1170 case 0xf2: 1171 db_printf("repne "); 1172 break; 1173 case 0xf3: 1174 db_printf("repe "); /* XXX repe VS rep */ 1175 break; 1176 default: 1177 prefix = FALSE; 1178 break; 1179 } 1180 if (inst >= 0x40 && inst < 0x50) { 1181 rex = inst; 1182 prefix = TRUE; 1183 } 1184 if (prefix) { 1185 get_value_inc(inst, loc, 1, FALSE); 1186 } 1187 } while (prefix); 1188 1189 if (inst >= 0xd8 && inst <= 0xdf) { 1190 loc = db_disasm_esc(loc, inst, rex, short_addr, size, seg); 1191 db_printf("\n"); 1192 return (loc); 1193 } 1194 1195 if (inst == 0x0f) { 1196 get_value_inc(inst, loc, 1, FALSE); 1197 ip = db_inst_0f[inst>>4]; 1198 if (ip == 0) { 1199 ip = &db_bad_inst; 1200 } 1201 else { 1202 ip = &ip[inst&0xf]; 1203 } 1204 } 1205 else 1206 ip = &db_inst_table[inst]; 1207 1208 if (ip->i_has_modrm) { 1209 get_value_inc(regmodrm, loc, 1, FALSE); 1210 loc = db_read_address(loc, short_addr, rex, regmodrm, &address); 1211 } 1212 1213 i_name = ip->i_name; 1214 i_size = ip->i_size; 1215 i_mode = ip->i_mode; 1216 1217 if (ip->i_extra == db_Grp1 || ip->i_extra == db_Grp2 || 1218 ip->i_extra == db_Grp6 || ip->i_extra == db_Grp7 || 1219 ip->i_extra == db_Grp8 || ip->i_extra == db_Grp9) { 1220 i_name = ((const char * const *)ip->i_extra)[f_reg(rex, regmodrm)]; 1221 } 1222 else if (ip->i_extra == db_Grp3) { 1223 ip = ip->i_extra; 1224 ip = &ip[f_reg(rex, regmodrm)]; 1225 i_name = ip->i_name; 1226 i_mode = ip->i_mode; 1227 } 1228 else if (ip->i_extra == db_Grp4 || ip->i_extra == db_Grp5) { 1229 ip = ip->i_extra; 1230 ip = &ip[f_reg(rex, regmodrm)]; 1231 i_name = ip->i_name; 1232 i_mode = ip->i_mode; 1233 i_size = ip->i_size; 1234 } 1235 1236 if (i_size == SDEP) { 1237 if (size == WORD) 1238 db_printf("%s", i_name); 1239 else 1240 db_printf("%s", (const char *)ip->i_extra); 1241 } 1242 else { 1243 db_printf("%s", i_name); 1244 if ((inst >= 0x50 && inst <= 0x5f) || inst == 0x68 || inst == 0x6a) { 1245 i_size = NONE; 1246 db_printf("q"); 1247 } 1248 if (i_size != NONE) { 1249 if (i_size == BYTE) { 1250 db_printf("b"); 1251 size = BYTE; 1252 } 1253 else if (i_size == WORD) { 1254 db_printf("w"); 1255 size = WORD; 1256 } 1257 else if (size == WORD) 1258 db_printf("w"); 1259 else { 1260 if (rex & REX_W) 1261 db_printf("q"); 1262 else 1263 db_printf("l"); 1264 } 1265 } 1266 } 1267 db_printf("\t"); 1268 for (first = TRUE; 1269 i_mode != 0; 1270 i_mode >>= 8, first = FALSE) 1271 { 1272 if (!first) 1273 db_printf(","); 1274 1275 switch (i_mode & 0xFF) { 1276 1277 case E: 1278 db_print_address(seg, size, rex, &address); 1279 break; 1280 1281 case Eind: 1282 db_printf("*"); 1283 db_print_address(seg, size, rex, &address); 1284 break; 1285 1286 case El: 1287 db_print_address(seg, (rex & REX_W) ? QUAD : LONG, rex, &address); 1288 break; 1289 1290 case EL: 1291 db_print_address(seg, LONG, 0, &address); 1292 break; 1293 1294 case Ew: 1295 db_print_address(seg, WORD, rex, &address); 1296 break; 1297 1298 case Eb: 1299 db_print_address(seg, BYTE, rex, &address); 1300 break; 1301 1302 case R: 1303 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][f_reg(rex, regmodrm)]); 1304 break; 1305 1306 case Rw: 1307 db_printf("%s", db_reg[rex != 0 ? 1 : 0][WORD][f_reg(rex, regmodrm)]); 1308 break; 1309 1310 case Ri: 1311 db_printf("%s", db_reg[0][QUAD][f_rm(rex, inst)]); 1312 break; 1313 1314 case Ril: 1315 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(rex & REX_R) ? QUAD : LONG][f_rm(rex, inst)]); 1316 break; 1317 1318 case S: 1319 db_printf("%s", db_seg_reg[f_reg(rex, regmodrm)]); 1320 break; 1321 1322 case Si: 1323 db_printf("%s", db_seg_reg[f_reg(rex, inst)]); 1324 break; 1325 1326 case A: 1327 db_printf("%s", db_reg[rex != 0 ? 1 : 0][size][0]); /* acc */ 1328 break; 1329 1330 case BX: 1331 if (seg) 1332 db_printf("%s:", seg); 1333 db_printf("(%s)", short_addr ? "%bx" : "%ebx"); 1334 break; 1335 1336 case CL: 1337 db_printf("%%cl"); 1338 break; 1339 1340 case DX: 1341 db_printf("%%dx"); 1342 break; 1343 1344 case SI: 1345 if (seg) 1346 db_printf("%s:", seg); 1347 db_printf("(%s)", short_addr ? "%si" : "%rsi"); 1348 break; 1349 1350 case DI: 1351 db_printf("%%es:(%s)", short_addr ? "%di" : "%rdi"); 1352 break; 1353 1354 case CR: 1355 db_printf("%%cr%d", f_reg(rex, regmodrm)); 1356 break; 1357 1358 case DR: 1359 db_printf("%%dr%d", f_reg(rex, regmodrm)); 1360 break; 1361 1362 case TR: 1363 db_printf("%%tr%d", f_reg(rex, regmodrm)); 1364 break; 1365 1366 case I: 1367 len = db_lengths[size]; 1368 get_value_inc(imm, loc, len, FALSE); 1369 db_printf("$%#r", imm); 1370 break; 1371 1372 case Is: 1373 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size]; 1374 get_value_inc(imm, loc, len, FALSE); 1375 db_printf("$%+#r", imm); 1376 break; 1377 1378 case Ib: 1379 get_value_inc(imm, loc, 1, FALSE); 1380 db_printf("$%#r", imm); 1381 break; 1382 1383 case Iba: 1384 get_value_inc(imm, loc, 1, FALSE); 1385 if (imm != 0x0a) 1386 db_printf("$%#r", imm); 1387 break; 1388 1389 case Ibs: 1390 get_value_inc(imm, loc, 1, TRUE); 1391 if (size == WORD) 1392 imm &= 0xFFFF; 1393 db_printf("$%+#r", imm); 1394 break; 1395 1396 case Iw: 1397 get_value_inc(imm, loc, 2, FALSE); 1398 db_printf("$%#r", imm); 1399 break; 1400 1401 case Ilq: 1402 len = db_lengths[rex & REX_W ? QUAD : LONG]; 1403 get_value_inc(imm64, loc, len, FALSE); 1404 db_printf("$%#lr", imm64); 1405 break; 1406 1407 case O: 1408 len = (short_addr ? 2 : 4); 1409 get_value_inc(displ, loc, len, FALSE); 1410 if (seg) 1411 db_printf("%s:%+#r",seg, displ); 1412 else 1413 db_printsym((db_addr_t)displ, DB_STGY_ANY); 1414 break; 1415 1416 case Db: 1417 get_value_inc(displ, loc, 1, TRUE); 1418 displ += loc; 1419 if (size == WORD) 1420 displ &= 0xFFFF; 1421 db_printsym((db_addr_t)displ, DB_STGY_XTRN); 1422 break; 1423 1424 case Dl: 1425 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size]; 1426 get_value_inc(displ, loc, len, FALSE); 1427 displ += loc; 1428 if (size == WORD) 1429 displ &= 0xFFFF; 1430 db_printsym((db_addr_t)displ, DB_STGY_XTRN); 1431 break; 1432 1433 case o1: 1434 db_printf("$1"); 1435 break; 1436 1437 case o3: 1438 db_printf("$3"); 1439 break; 1440 1441 case OS: 1442 len = db_lengths[size]; 1443 get_value_inc(imm, loc, len, FALSE); /* offset */ 1444 get_value_inc(imm2, loc, 2, FALSE); /* segment */ 1445 db_printf("$%#r,%#r", imm2, imm); 1446 break; 1447 } 1448 } 1449 db_printf("\n"); 1450 return (loc); 1451 }
Cache object: 954694ede333e500253efdae03237471
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]