| 1 | /* $NetBSD: db_disasm.c,v 1.23 2016/03/25 10:14:43 shm Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Mach Operating System |
| 5 | * Copyright (c) 1991,1990 Carnegie Mellon University |
| 6 | * All Rights Reserved. |
| 7 | * |
| 8 | * Permission to use, copy, modify and distribute this software and its |
| 9 | * documentation is hereby granted, provided that both the copyright |
| 10 | * notice and this permission notice appear in all copies of the |
| 11 | * software, derivative works or modified versions, and any portions |
| 12 | * thereof, and that both notices appear in supporting documentation. |
| 13 | * |
| 14 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
| 15 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR |
| 16 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
| 17 | * |
| 18 | * Carnegie Mellon requests users of this software to return to |
| 19 | * |
| 20 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
| 21 | * School of Computer Science |
| 22 | * Carnegie Mellon University |
| 23 | * Pittsburgh PA 15213-3890 |
| 24 | * |
| 25 | * any improvements or extensions that they make and grant Carnegie the |
| 26 | * rights to redistribute these changes. |
| 27 | * |
| 28 | * Id: db_disasm.c,v 2.3 91/02/05 17:11:03 mrt (CMU) |
| 29 | */ |
| 30 | |
| 31 | /* |
| 32 | * Instruction disassembler. |
| 33 | */ |
| 34 | |
| 35 | #include <sys/cdefs.h> |
| 36 | __KERNEL_RCSID(0, "$NetBSD: db_disasm.c,v 1.23 2016/03/25 10:14:43 shm Exp $" ); |
| 37 | |
| 38 | #ifndef _KERNEL |
| 39 | #include <sys/types.h> |
| 40 | #include <sys/time.h> |
| 41 | #include <sys/ksyms.h> |
| 42 | #endif /* _KERNEL */ |
| 43 | |
| 44 | #include <sys/param.h> |
| 45 | #include <sys/proc.h> |
| 46 | #include <machine/db_machdep.h> |
| 47 | |
| 48 | #include <ddb/db_access.h> |
| 49 | #include <ddb/db_sym.h> |
| 50 | #include <ddb/db_output.h> |
| 51 | #include <ddb/db_interface.h> |
| 52 | |
| 53 | #ifndef _KERNEL |
| 54 | #define db_printsym(a, x, fn) fn("%lx ", (a)) |
| 55 | #endif |
| 56 | |
| 57 | /* |
| 58 | * Size attributes |
| 59 | */ |
| 60 | #define BYTE 0 |
| 61 | #define WORD 1 |
| 62 | #define LONG 2 |
| 63 | #define QUAD 3 |
| 64 | #define SNGL 4 |
| 65 | #define DBLR 5 |
| 66 | #define EXTR 6 |
| 67 | #define SDEP 7 |
| 68 | #define NONE 8 |
| 69 | |
| 70 | /* |
| 71 | * REX prefix and bits |
| 72 | */ |
| 73 | #define REX_B 1 |
| 74 | #define REX_X 2 |
| 75 | #define REX_R 4 |
| 76 | #define REX_W 8 |
| 77 | #define REX 0x40 |
| 78 | |
| 79 | /* |
| 80 | * Addressing modes |
| 81 | */ |
| 82 | #define E 1 /* general effective address */ |
| 83 | #define Eind 2 /* indirect address (jump, call) */ |
| 84 | #define Ew 3 /* address, word size */ |
| 85 | #define Eb 4 /* address, byte size */ |
| 86 | #define R 5 /* register, in 'reg' field */ |
| 87 | #define Rw 6 /* word register, in 'reg' field */ |
| 88 | #define Ri 7 /* register in instruction */ |
| 89 | #define S 8 /* segment reg, in 'reg' field */ |
| 90 | #define Si 9 /* segment reg, in instruction */ |
| 91 | #define A 10 /* accumulator */ |
| 92 | #define BX 11 /* (bx) */ |
| 93 | #define CL 12 /* cl, for shifts */ |
| 94 | #define DX 13 /* dx, for IO */ |
| 95 | #define SI 14 /* si */ |
| 96 | #define DI 15 /* di */ |
| 97 | #define CR 16 /* control register */ |
| 98 | #define DR 17 /* debug register */ |
| 99 | #define TR 18 /* test register */ |
| 100 | #define I 19 /* immediate, unsigned */ |
| 101 | #define Is 20 /* immediate, signed */ |
| 102 | #define Ib 21 /* byte immediate, unsigned */ |
| 103 | #define Ibs 22 /* byte immediate, signed */ |
| 104 | #define Iw 23 /* word immediate, unsigned */ |
| 105 | #define Il 24 /* long immediate */ |
| 106 | #define O 25 /* direct address */ |
| 107 | #define Db 26 /* byte displacement from EIP */ |
| 108 | #define Dl 27 /* long displacement from EIP */ |
| 109 | #define o1 28 /* constant 1 */ |
| 110 | #define o3 29 /* constant 3 */ |
| 111 | #define OS 30 /* immediate offset/segment */ |
| 112 | #define ST 31 /* FP stack top */ |
| 113 | #define STI 32 /* FP stack */ |
| 114 | #define X 33 /* extended FP op */ |
| 115 | #define XA 34 /* for 'fstcw %ax' */ |
| 116 | #define Ed 35 /* address, double size */ |
| 117 | #define Iq 36 /* word immediate, maybe 64bits */ |
| 118 | #define Rv 40 /* register in 'r/m' field */ |
| 119 | |
| 120 | struct inst { |
| 121 | const char *i_name; /* name */ |
| 122 | short i_has_modrm; /* has regmodrm byte */ |
| 123 | short i_size; /* operand size */ |
| 124 | int i_mode; /* addressing modes */ |
| 125 | const void *; /* pointer to extra opcode table */ |
| 126 | }; |
| 127 | |
| 128 | #define op1(x) (x) |
| 129 | #define op2(x,y) ((x)|((y)<<8)) |
| 130 | #define op3(x,y,z) ((x)|((y)<<8)|((z)<<16)) |
| 131 | |
| 132 | struct finst { |
| 133 | const char *f_name; /* name for memory instruction */ |
| 134 | int f_size; /* size for memory instruction */ |
| 135 | int f_rrmode; /* mode for rr instruction */ |
| 136 | const void *f_rrname; /* name for rr instruction |
| 137 | (or pointer to table) */ |
| 138 | }; |
| 139 | |
| 140 | const char * const db_Grp6[] = { |
| 141 | "sldt" , |
| 142 | "str" , |
| 143 | "lldt" , |
| 144 | "ltr" , |
| 145 | "verr" , |
| 146 | "verw" , |
| 147 | "" , |
| 148 | "" |
| 149 | }; |
| 150 | |
| 151 | const char * const db_Grp7[] = { |
| 152 | "sgdt" , |
| 153 | "sidt" , |
| 154 | "lgdt" , |
| 155 | "lidt" , |
| 156 | "smsw" , |
| 157 | "" , |
| 158 | "lmsw" , |
| 159 | "invlpg" |
| 160 | }; |
| 161 | |
| 162 | const char * const db_Grp8[] = { |
| 163 | "" , |
| 164 | "" , |
| 165 | "" , |
| 166 | "" , |
| 167 | "bt" , |
| 168 | "bts" , |
| 169 | "btr" , |
| 170 | "btc" |
| 171 | }; |
| 172 | |
| 173 | const char * const db_Grp9[] = { |
| 174 | "" , |
| 175 | "cmpxchg8b" , |
| 176 | "" , |
| 177 | "" , |
| 178 | "" , |
| 179 | "" , |
| 180 | "vmptrld" , |
| 181 | "vmptrst" |
| 182 | }; |
| 183 | |
| 184 | const struct inst db_Grp9b[] = { |
| 185 | { "" , true, NONE, 0, 0 }, |
| 186 | { "" , true, NONE, 0, 0 }, |
| 187 | { "" , true, NONE, 0, 0 }, |
| 188 | { "" , true, NONE, 0, 0 }, |
| 189 | { "" , true, NONE, 0, 0 }, |
| 190 | { "" , true, NONE, 0, 0 }, |
| 191 | { "rdrand" ,true, LONG, op1(Rv), 0 }, |
| 192 | { "rdseed" ,true, LONG, op1(Rv), 0 } |
| 193 | }; |
| 194 | |
| 195 | const struct inst db_inst_0f0x[] = { |
| 196 | /*00*/ { "" , true, NONE, op1(Ew), db_Grp6 }, |
| 197 | /*01*/ { "" , true, NONE, op1(Ew), db_Grp7 }, |
| 198 | /*02*/ { "lar" , true, LONG, op2(E,R), 0 }, |
| 199 | /*03*/ { "lsl" , true, LONG, op2(E,R), 0 }, |
| 200 | /*04*/ { "" , false, NONE, 0, 0 }, |
| 201 | /*05*/ { "syscall" ,false,NONE, 0, 0 }, |
| 202 | /*06*/ { "clts" , false, NONE, 0, 0 }, |
| 203 | /*07*/ { "sysret" ,false, NONE, 0, 0 }, |
| 204 | |
| 205 | /*08*/ { "invd" , false, NONE, 0, 0 }, |
| 206 | /*09*/ { "wbinvd" ,false, NONE, 0, 0 }, |
| 207 | /*0a*/ { "" , false, NONE, 0, 0 }, |
| 208 | /*0b*/ { "ud2" , false, NONE, 0, 0 }, |
| 209 | /*0c*/ { "" , false, NONE, 0, 0 }, |
| 210 | /*0d*/ { "prefetch" ,true,NONE, op2(E,R), 0 }, /* Not 'R' really */ |
| 211 | /*0e*/ { "" , false, NONE, 0, 0 }, /* FEMMS (3DNow) */ |
| 212 | /*0f*/ { "" , false, NONE, 0, 0 }, /* 3DNow */ |
| 213 | }; |
| 214 | |
| 215 | const struct inst db_inst_0f1x[] = { |
| 216 | /*10*/ { "" , false, NONE, 0, 0 }, |
| 217 | /*11*/ { "" , false, NONE, 0, 0 }, |
| 218 | /*12*/ { "" , false, NONE, 0, 0 }, |
| 219 | /*13*/ { "" , false, NONE, 0, 0 }, |
| 220 | /*14*/ { "" , false, NONE, 0, 0 }, |
| 221 | /*15*/ { "" , false, NONE, 0, 0 }, |
| 222 | /*16*/ { "" , false, NONE, 0, 0 }, |
| 223 | /*17*/ { "" , false, NONE, 0, 0 }, |
| 224 | |
| 225 | /*18*/ { "" , false, NONE, 0, 0 }, |
| 226 | /*19*/ { "" , false, NONE, 0, 0 }, |
| 227 | /*1a*/ { "" , false, NONE, 0, 0 }, |
| 228 | /*1b*/ { "" , false, NONE, 0, 0 }, |
| 229 | /*1c*/ { "" , false, NONE, 0, 0 }, |
| 230 | /*1d*/ { "" , false, NONE, 0, 0 }, |
| 231 | /*1e*/ { "" , false, NONE, 0, 0 }, |
| 232 | /*1f*/ { "nopl" , true, SDEP, 0, "nopw" }, |
| 233 | }; |
| 234 | |
| 235 | const struct inst db_inst_0f2x[] = { |
| 236 | /*20*/ { "mov" , true, LONG, op2(CR,E), 0 }, /* use E for reg */ |
| 237 | /*21*/ { "mov" , true, LONG, op2(DR,E), 0 }, /* since mod == 11 */ |
| 238 | /*22*/ { "mov" , true, LONG, op2(E,CR), 0 }, |
| 239 | /*23*/ { "mov" , true, LONG, op2(E,DR), 0 }, |
| 240 | /*24*/ { "mov" , true, LONG, op2(TR,E), 0 }, |
| 241 | /*25*/ { "" , false, NONE, 0, 0 }, |
| 242 | /*26*/ { "mov" , true, LONG, op2(E,TR), 0 }, |
| 243 | /*27*/ { "" , false, NONE, 0, 0 }, |
| 244 | |
| 245 | /*28*/ { "" , false, NONE, 0, 0 }, |
| 246 | /*29*/ { "" , false, NONE, 0, 0 }, |
| 247 | /*2a*/ { "" , false, NONE, 0, 0 }, |
| 248 | /*2b*/ { "" , false, NONE, 0, 0 }, |
| 249 | /*2c*/ { "" , false, NONE, 0, 0 }, |
| 250 | /*2d*/ { "" , false, NONE, 0, 0 }, |
| 251 | /*2e*/ { "" , false, NONE, 0, 0 }, |
| 252 | /*2f*/ { "" , false, NONE, 0, 0 }, |
| 253 | }; |
| 254 | |
| 255 | const struct inst db_inst_0f3x[] = { |
| 256 | /*30*/ { "wrmsr" , false, NONE, 0, 0 }, |
| 257 | /*31*/ { "rdtsc" , false, NONE, 0, 0 }, |
| 258 | /*32*/ { "rdmsr" , false, NONE, 0, 0 }, |
| 259 | /*33*/ { "rdpmc" , false, NONE, 0, 0 }, |
| 260 | /*34*/ { "sysenter" ,false,NONE, 0, 0 }, |
| 261 | /*35*/ { "sysexit" ,false, NONE, 0, 0 }, |
| 262 | /*36*/ { "" , false, NONE, 0, 0 }, |
| 263 | /*37*/ { "getsec" ,false, NONE, 0, 0 }, |
| 264 | |
| 265 | /*38*/ { "" , false, NONE, 0, 0 }, |
| 266 | /*39*/ { "" , false, NONE, 0, 0 }, |
| 267 | /*3a*/ { "" , false, NONE, 0, 0 }, |
| 268 | /*3b*/ { "" , false, NONE, 0, 0 }, |
| 269 | /*3c*/ { "" , false, NONE, 0, 0 }, |
| 270 | /*3d*/ { "" , false, NONE, 0, 0 }, |
| 271 | /*3e*/ { "" , false, NONE, 0, 0 }, |
| 272 | /*3f*/ { "" , false, NONE, 0, 0 }, |
| 273 | }; |
| 274 | |
| 275 | const struct inst db_inst_0f4x[] = { |
| 276 | /*40*/ { "cmovo" , true, LONG, op2(E,R), 0 }, |
| 277 | /*41*/ { "cmovno" , true, LONG, op2(E,R), 0 }, |
| 278 | /*42*/ { "cmovc" , true, LONG, op2(E,R), 0 }, |
| 279 | /*43*/ { "cmovnc" , true, LONG, op2(E,R), 0 }, |
| 280 | /*44*/ { "cmovz" , true, LONG, op2(E,R), 0 }, |
| 281 | /*45*/ { "cmovnz" , true, LONG, op2(E,R), 0 }, |
| 282 | /*46*/ { "cmovbe" , true, LONG, op2(E,R), 0 }, |
| 283 | /*47*/ { "cmovmbe" ,true, LONG, op2(E,R), 0 }, |
| 284 | /*48*/ { "cmovs" , true, LONG, op2(E,R), 0 }, |
| 285 | /*49*/ { "cmovns" , true, LONG, op2(E,R), 0 }, |
| 286 | /*4a*/ { "cmovp" , true, LONG, op2(E,R), 0 }, |
| 287 | /*4b*/ { "cmovnp" , true, LONG, op2(E,R), 0 }, |
| 288 | /*4c*/ { "cmovl" , true, LONG, op2(E,R), 0 }, |
| 289 | /*4d*/ { "cmovnl" , true, LONG, op2(E,R), 0 }, |
| 290 | /*4e*/ { "cmovle" , true, LONG, op2(E,R), 0 }, |
| 291 | /*4f*/ { "cmovnle" ,true, LONG, op2(E,R), 0 }, |
| 292 | }; |
| 293 | |
| 294 | const struct inst db_inst_0f8x[] = { |
| 295 | /*80*/ { "jo" , false, NONE, op1(Dl), 0 }, |
| 296 | /*81*/ { "jno" , false, NONE, op1(Dl), 0 }, |
| 297 | /*82*/ { "jb" , false, NONE, op1(Dl), 0 }, |
| 298 | /*83*/ { "jnb" , false, NONE, op1(Dl), 0 }, |
| 299 | /*84*/ { "jz" , false, NONE, op1(Dl), 0 }, |
| 300 | /*85*/ { "jnz" , false, NONE, op1(Dl), 0 }, |
| 301 | /*86*/ { "jbe" , false, NONE, op1(Dl), 0 }, |
| 302 | /*87*/ { "jnbe" , false, NONE, op1(Dl), 0 }, |
| 303 | |
| 304 | /*88*/ { "js" , false, NONE, op1(Dl), 0 }, |
| 305 | /*89*/ { "jns" , false, NONE, op1(Dl), 0 }, |
| 306 | /*8a*/ { "jp" , false, NONE, op1(Dl), 0 }, |
| 307 | /*8b*/ { "jnp" , false, NONE, op1(Dl), 0 }, |
| 308 | /*8c*/ { "jl" , false, NONE, op1(Dl), 0 }, |
| 309 | /*8d*/ { "jnl" , false, NONE, op1(Dl), 0 }, |
| 310 | /*8e*/ { "jle" , false, NONE, op1(Dl), 0 }, |
| 311 | /*8f*/ { "jnle" , false, NONE, op1(Dl), 0 }, |
| 312 | }; |
| 313 | |
| 314 | const struct inst db_inst_0f9x[] = { |
| 315 | /*90*/ { "seto" , true, NONE, op1(Eb), 0 }, |
| 316 | /*91*/ { "setno" , true, NONE, op1(Eb), 0 }, |
| 317 | /*92*/ { "setb" , true, NONE, op1(Eb), 0 }, |
| 318 | /*93*/ { "setnb" , true, NONE, op1(Eb), 0 }, |
| 319 | /*94*/ { "setz" , true, NONE, op1(Eb), 0 }, |
| 320 | /*95*/ { "setnz" , true, NONE, op1(Eb), 0 }, |
| 321 | /*96*/ { "setbe" , true, NONE, op1(Eb), 0 }, |
| 322 | /*97*/ { "setnbe" ,true, NONE, op1(Eb), 0 }, |
| 323 | |
| 324 | /*98*/ { "sets" , true, NONE, op1(Eb), 0 }, |
| 325 | /*99*/ { "setns" , true, NONE, op1(Eb), 0 }, |
| 326 | /*9a*/ { "setp" , true, NONE, op1(Eb), 0 }, |
| 327 | /*9b*/ { "setnp" , true, NONE, op1(Eb), 0 }, |
| 328 | /*9c*/ { "setl" , true, NONE, op1(Eb), 0 }, |
| 329 | /*9d*/ { "setnl" , true, NONE, op1(Eb), 0 }, |
| 330 | /*9e*/ { "setle" , true, NONE, op1(Eb), 0 }, |
| 331 | /*9f*/ { "setnle" ,true, NONE, op1(Eb), 0 }, |
| 332 | }; |
| 333 | |
| 334 | const struct inst db_inst_0fax[] = { |
| 335 | /*a0*/ { "push" , false, NONE, op1(Si), 0 }, |
| 336 | /*a1*/ { "pop" , false, NONE, op1(Si), 0 }, |
| 337 | /*a2*/ { "cpuid" , false, NONE, 0, 0 }, |
| 338 | /*a3*/ { "bt" , true, LONG, op2(R,E), 0 }, |
| 339 | /*a4*/ { "shld" , true, LONG, op3(Ib,R,E), 0 }, |
| 340 | /*a5*/ { "shld" , true, LONG, op3(CL,R,E), 0 }, |
| 341 | /*a6*/ { "" , false, NONE, 0, 0 }, |
| 342 | /*a7*/ { "" , false, NONE, 0, 0 }, |
| 343 | |
| 344 | /*a8*/ { "push" , false, NONE, op1(Si), 0 }, |
| 345 | /*a9*/ { "pop" , false, NONE, op1(Si), 0 }, |
| 346 | /*aa*/ { "rsm" , false, NONE, 0, 0 }, |
| 347 | /*ab*/ { "bts" , true, LONG, op2(R,E), 0 }, |
| 348 | /*ac*/ { "shrd" , true, LONG, op3(Ib,R,E), 0 }, |
| 349 | /*ad*/ { "shrd" , true, LONG, op3(CL,R,E), 0 }, |
| 350 | /*ae*/ { "fxsave" ,true, LONG, 0, 0 }, |
| 351 | /*af*/ { "imul" , true, LONG, op2(E,R), 0 }, |
| 352 | }; |
| 353 | |
| 354 | const struct inst db_inst_0fbx[] = { |
| 355 | /*b0*/ { "cmpxchg" ,true, BYTE, op2(R, E), 0 }, |
| 356 | /*b1*/ { "cmpxchg" ,true, LONG, op2(R, E), 0 }, |
| 357 | /*b2*/ { "lss" , true, LONG, op2(E, R), 0 }, |
| 358 | /*b3*/ { "btr" , true, LONG, op2(R, E), 0 }, |
| 359 | /*b4*/ { "lfs" , true, LONG, op2(E, R), 0 }, |
| 360 | /*b5*/ { "lgs" , true, LONG, op2(E, R), 0 }, |
| 361 | /*b6*/ { "movzb" , true, LONG, op2(E, R), 0 }, |
| 362 | /*b7*/ { "movzw" , true, LONG, op2(E, R), 0 }, |
| 363 | |
| 364 | /*b8*/ { "" , false, NONE, 0, 0 }, |
| 365 | /*b9*/ { "" , false, NONE, 0, 0 }, |
| 366 | /*ba*/ { "" , true, LONG, op2(Ib, E), db_Grp8 }, |
| 367 | /*bb*/ { "btc" , true, LONG, op2(R, E), 0 }, |
| 368 | /*bc*/ { "bsf" , true, LONG, op2(E, R), 0 }, |
| 369 | /*bd*/ { "bsr" , true, LONG, op2(E, R), 0 }, |
| 370 | /*be*/ { "movsb" , true, LONG, op2(E, R), 0 }, |
| 371 | /*bf*/ { "movsw" , true, LONG, op2(E, R), 0 }, |
| 372 | }; |
| 373 | |
| 374 | const struct inst db_inst_0fcx[] = { |
| 375 | /*c0*/ { "xadd" , true, BYTE, op2(R, E), 0 }, |
| 376 | /*c1*/ { "xadd" , true, LONG, op2(R, E), 0 }, |
| 377 | /*c2*/ { "" , false, NONE, 0, 0 }, |
| 378 | /*c3*/ { "" , false, NONE, 0, 0 }, |
| 379 | /*c4*/ { "" , false, NONE, 0, 0 }, |
| 380 | /*c5*/ { "" , false, NONE, 0, 0 }, |
| 381 | /*c6*/ { "" , false, NONE, 0, 0 }, |
| 382 | /*c7*/ { "" , true, NONE, op1(E), db_Grp9 }, |
| 383 | |
| 384 | /*c8*/ { "bswap" , false, LONG, op1(Ri), 0 }, |
| 385 | /*c9*/ { "bswap" , false, LONG, op1(Ri), 0 }, |
| 386 | /*ca*/ { "bswap" , false, LONG, op1(Ri), 0 }, |
| 387 | /*cb*/ { "bswap" , false, LONG, op1(Ri), 0 }, |
| 388 | /*cc*/ { "bswap" , false, LONG, op1(Ri), 0 }, |
| 389 | /*cd*/ { "bswap" , false, LONG, op1(Ri), 0 }, |
| 390 | /*ce*/ { "bswap" , false, LONG, op1(Ri), 0 }, |
| 391 | /*cf*/ { "bswap" , false, LONG, op1(Ri), 0 }, |
| 392 | }; |
| 393 | |
| 394 | const struct inst * const db_inst_0f[] = { |
| 395 | db_inst_0f0x, |
| 396 | db_inst_0f1x, |
| 397 | db_inst_0f2x, |
| 398 | db_inst_0f3x, |
| 399 | db_inst_0f4x, |
| 400 | NULL, |
| 401 | NULL, |
| 402 | NULL, |
| 403 | db_inst_0f8x, |
| 404 | db_inst_0f9x, |
| 405 | db_inst_0fax, |
| 406 | db_inst_0fbx, |
| 407 | db_inst_0fcx, |
| 408 | NULL, |
| 409 | NULL, |
| 410 | NULL |
| 411 | }; |
| 412 | |
| 413 | const char * const db_Esc92[] = { |
| 414 | "fnop" , "" , "" , "" , "" , "" , "" , "" |
| 415 | }; |
| 416 | const char * const db_Esc93[] = { |
| 417 | "" , "" , "" , "" , "" , "" , "" , "" |
| 418 | }; |
| 419 | const char * const db_Esc94[] = { |
| 420 | "fchs" , "fabs" , "" , "" , "ftst" , "fxam" , "" , "" |
| 421 | }; |
| 422 | const char * const db_Esc95[] = { |
| 423 | "fld1" , "fldl2t" ,"fldl2e" ,"fldpi" ,"fldlg2" ,"fldln2" ,"fldz" ,"" |
| 424 | }; |
| 425 | const char * const db_Esc96[] = { |
| 426 | "f2xm1" ,"fyl2x" ,"fptan" ,"fpatan" ,"fxtract" ,"fprem1" ,"fdecstp" , |
| 427 | "fincstp" |
| 428 | }; |
| 429 | const char * const db_Esc97[] = { |
| 430 | "fprem" ,"fyl2xp1" ,"fsqrt" ,"fsincos" ,"frndint" ,"fscale" ,"fsin" ,"fcos" |
| 431 | }; |
| 432 | |
| 433 | const char * const db_Esca4[] = { |
| 434 | "" , "fucompp" ,"" , "" , "" , "" , "" , "" |
| 435 | }; |
| 436 | |
| 437 | const char * const db_Escb4[] = { |
| 438 | "" , "" , "fnclex" ,"fninit" ,"" , "" , "" , "" |
| 439 | }; |
| 440 | |
| 441 | const char * const db_Esce3[] = { |
| 442 | "" , "fcompp" ,"" , "" , "" , "" , "" , "" |
| 443 | }; |
| 444 | |
| 445 | const char * const db_Escf4[] = { |
| 446 | "fnstsw" ,"" , "" , "" , "" , "" , "" , "" |
| 447 | }; |
| 448 | |
| 449 | const struct finst db_Esc8[] = { |
| 450 | /*0*/ { "fadd" , SNGL, op2(STI,ST), 0 }, |
| 451 | /*1*/ { "fmul" , SNGL, op2(STI,ST), 0 }, |
| 452 | /*2*/ { "fcom" , SNGL, op2(STI,ST), 0 }, |
| 453 | /*3*/ { "fcomp" , SNGL, op2(STI,ST), 0 }, |
| 454 | /*4*/ { "fsub" , SNGL, op2(STI,ST), 0 }, |
| 455 | /*5*/ { "fsubr" , SNGL, op2(STI,ST), 0 }, |
| 456 | /*6*/ { "fdiv" , SNGL, op2(STI,ST), 0 }, |
| 457 | /*7*/ { "fdivr" , SNGL, op2(STI,ST), 0 }, |
| 458 | }; |
| 459 | |
| 460 | const struct finst db_Esc9[] = { |
| 461 | /*0*/ { "fld" , SNGL, op1(STI), 0 }, |
| 462 | /*1*/ { "" , NONE, op1(STI), "fxch" }, |
| 463 | /*2*/ { "fst" , SNGL, op1(X), db_Esc92 }, |
| 464 | /*3*/ { "fstp" , SNGL, op1(X), db_Esc93 }, |
| 465 | /*4*/ { "fldenv" , NONE, op1(X), db_Esc94 }, |
| 466 | /*5*/ { "fldcw" , NONE, op1(X), db_Esc95 }, |
| 467 | /*6*/ { "fnstenv" ,NONE, op1(X), db_Esc96 }, |
| 468 | /*7*/ { "fnstcw" , NONE, op1(X), db_Esc97 }, |
| 469 | }; |
| 470 | |
| 471 | const struct finst db_Esca[] = { |
| 472 | /*0*/ { "fiadd" , WORD, 0, 0 }, |
| 473 | /*1*/ { "fimul" , WORD, 0, 0 }, |
| 474 | /*2*/ { "ficom" , WORD, 0, 0 }, |
| 475 | /*3*/ { "ficomp" , WORD, 0, 0 }, |
| 476 | /*4*/ { "fisub" , WORD, op1(X), db_Esca4 }, |
| 477 | /*5*/ { "fisubr" , WORD, 0, 0 }, |
| 478 | /*6*/ { "fidiv" , WORD, 0, 0 }, |
| 479 | /*7*/ { "fidivr" , WORD, 0, 0 } |
| 480 | }; |
| 481 | |
| 482 | const struct finst db_Escb[] = { |
| 483 | /*0*/ { "fild" , WORD, 0, 0 }, |
| 484 | /*1*/ { "" , NONE, 0, 0 }, |
| 485 | /*2*/ { "fist" , WORD, 0, 0 }, |
| 486 | /*3*/ { "fistp" , WORD, 0, 0 }, |
| 487 | /*4*/ { "" , WORD, op1(X), db_Escb4 }, |
| 488 | /*5*/ { "fld" , EXTR, 0, 0 }, |
| 489 | /*6*/ { "" , WORD, 0, 0 }, |
| 490 | /*7*/ { "fstp" , EXTR, 0, 0 }, |
| 491 | }; |
| 492 | |
| 493 | const struct finst db_Escc[] = { |
| 494 | /*0*/ { "fadd" , DBLR, op2(ST,STI), 0 }, |
| 495 | /*1*/ { "fmul" , DBLR, op2(ST,STI), 0 }, |
| 496 | /*2*/ { "fcom" , DBLR, op2(ST,STI), 0 }, |
| 497 | /*3*/ { "fcomp" , DBLR, op2(ST,STI), 0 }, |
| 498 | /*4*/ { "fsub" , DBLR, op2(ST,STI), "fsubr" }, |
| 499 | /*5*/ { "fsubr" , DBLR, op2(ST,STI), "fsub" }, |
| 500 | /*6*/ { "fdiv" , DBLR, op2(ST,STI), "fdivr" }, |
| 501 | /*7*/ { "fdivr" , DBLR, op2(ST,STI), "fdiv" }, |
| 502 | }; |
| 503 | |
| 504 | const struct finst db_Escd[] = { |
| 505 | /*0*/ { "fld" , DBLR, op1(STI), "ffree" }, |
| 506 | /*1*/ { "" , NONE, 0, 0 }, |
| 507 | /*2*/ { "fst" , DBLR, op1(STI), 0 }, |
| 508 | /*3*/ { "fstp" , DBLR, op1(STI), 0 }, |
| 509 | /*4*/ { "frstor" , NONE, op1(STI), "fucom" }, |
| 510 | /*5*/ { "" , NONE, op1(STI), "fucomp" }, |
| 511 | /*6*/ { "fnsave" , NONE, 0, 0 }, |
| 512 | /*7*/ { "fnstsw" , NONE, 0, 0 }, |
| 513 | }; |
| 514 | |
| 515 | const struct finst db_Esce[] = { |
| 516 | /*0*/ { "fiadd" , LONG, op2(ST,STI), "faddp" }, |
| 517 | /*1*/ { "fimul" , LONG, op2(ST,STI), "fmulp" }, |
| 518 | /*2*/ { "ficom" , LONG, 0, 0 }, |
| 519 | /*3*/ { "ficomp" , LONG, op1(X), db_Esce3 }, |
| 520 | /*4*/ { "fisub" , LONG, op2(ST,STI), "fsubrp" }, |
| 521 | /*5*/ { "fisubr" , LONG, op2(ST,STI), "fsubp" }, |
| 522 | /*6*/ { "fidiv" , LONG, op2(ST,STI), "fdivrp" }, |
| 523 | /*7*/ { "fidivr" , LONG, op2(ST,STI), "fdivp" }, |
| 524 | }; |
| 525 | |
| 526 | const struct finst db_Escf[] = { |
| 527 | /*0*/ { "fild" , LONG, 0, 0 }, |
| 528 | /*1*/ { "" , LONG, 0, 0 }, |
| 529 | /*2*/ { "fist" , LONG, 0, 0 }, |
| 530 | /*3*/ { "fistp" , LONG, 0, 0 }, |
| 531 | /*4*/ { "fbld" , NONE, op1(XA), db_Escf4 }, |
| 532 | /*5*/ { "fld" , QUAD, 0, 0 }, |
| 533 | /*6*/ { "fbstp" , NONE, 0, 0 }, |
| 534 | /*7*/ { "fstp" , QUAD, 0, 0 }, |
| 535 | }; |
| 536 | |
| 537 | const struct finst * const db_Esc_inst[] = { |
| 538 | db_Esc8, db_Esc9, db_Esca, db_Escb, |
| 539 | db_Escc, db_Escd, db_Esce, db_Escf |
| 540 | }; |
| 541 | |
| 542 | const char * const db_Grp1[] = { |
| 543 | "add" , |
| 544 | "or" , |
| 545 | "adc" , |
| 546 | "sbb" , |
| 547 | "and" , |
| 548 | "sub" , |
| 549 | "xor" , |
| 550 | "cmp" |
| 551 | }; |
| 552 | |
| 553 | const char * const db_Grp2[] = { |
| 554 | "rol" , |
| 555 | "ror" , |
| 556 | "rcl" , |
| 557 | "rcr" , |
| 558 | "shl" , |
| 559 | "shr" , |
| 560 | "shl" , |
| 561 | "sar" |
| 562 | }; |
| 563 | |
| 564 | const struct inst db_Grp3[] = { |
| 565 | { "test" , true, NONE, op2(I,E), 0 }, |
| 566 | { "test" , true, NONE, op2(I,E), 0 }, |
| 567 | { "not" , true, NONE, op1(E), 0 }, |
| 568 | { "neg" , true, NONE, op1(E), 0 }, |
| 569 | { "mul" , true, NONE, op2(E,A), 0 }, |
| 570 | { "imul" , true, NONE, op2(E,A), 0 }, |
| 571 | { "div" , true, NONE, op2(E,A), 0 }, |
| 572 | { "idiv" , true, NONE, op2(E,A), 0 }, |
| 573 | }; |
| 574 | |
| 575 | const struct inst db_Grp4[] = { |
| 576 | { "inc" , true, BYTE, op1(E), 0 }, |
| 577 | { "dec" , true, BYTE, op1(E), 0 }, |
| 578 | { "" , true, NONE, 0, 0 }, |
| 579 | { "" , true, NONE, 0, 0 }, |
| 580 | { "" , true, NONE, 0, 0 }, |
| 581 | { "" , true, NONE, 0, 0 }, |
| 582 | { "" , true, NONE, 0, 0 }, |
| 583 | { "" , true, NONE, 0, 0 } |
| 584 | }; |
| 585 | |
| 586 | const struct inst db_Grp5[] = { |
| 587 | { "inc" , true, LONG, op1(E), 0 }, |
| 588 | { "dec" , true, LONG, op1(E), 0 }, |
| 589 | { "call" , true, NONE, op1(Eind),0 }, |
| 590 | { "lcall" , true, NONE, op1(Eind),0 }, |
| 591 | { "jmp" , true, NONE, op1(Eind),0 }, |
| 592 | { "ljmp" , true, NONE, op1(Eind),0 }, |
| 593 | { "push" , true, LONG, op1(E), 0 }, |
| 594 | { "" , true, NONE, 0, 0 } |
| 595 | }; |
| 596 | |
| 597 | const struct inst db_inst_table[256] = { |
| 598 | /*00*/ { "add" , true, BYTE, op2(R, E), 0 }, |
| 599 | /*01*/ { "add" , true, LONG, op2(R, E), 0 }, |
| 600 | /*02*/ { "add" , true, BYTE, op2(E, R), 0 }, |
| 601 | /*03*/ { "add" , true, LONG, op2(E, R), 0 }, |
| 602 | /*04*/ { "add" , false, BYTE, op2(Is, A), 0 }, |
| 603 | /*05*/ { "add" , false, LONG, op2(Is, A), 0 }, |
| 604 | /*06*/ { "push" , false, NONE, op1(Si), 0 }, |
| 605 | /*07*/ { "pop" , false, NONE, op1(Si), 0 }, |
| 606 | |
| 607 | /*08*/ { "or" , true, BYTE, op2(R, E), 0 }, |
| 608 | /*09*/ { "or" , true, LONG, op2(R, E), 0 }, |
| 609 | /*0a*/ { "or" , true, BYTE, op2(E, R), 0 }, |
| 610 | /*0b*/ { "or" , true, LONG, op2(E, R), 0 }, |
| 611 | /*0c*/ { "or" , false, BYTE, op2(I, A), 0 }, |
| 612 | /*0d*/ { "or" , false, LONG, op2(I, A), 0 }, |
| 613 | /*0e*/ { "push" , false, NONE, op1(Si), 0 }, |
| 614 | /*0f*/ { "" , false, NONE, 0, 0 }, |
| 615 | |
| 616 | /*10*/ { "adc" , true, BYTE, op2(R, E), 0 }, |
| 617 | /*11*/ { "adc" , true, LONG, op2(R, E), 0 }, |
| 618 | /*12*/ { "adc" , true, BYTE, op2(E, R), 0 }, |
| 619 | /*13*/ { "adc" , true, LONG, op2(E, R), 0 }, |
| 620 | /*14*/ { "adc" , false, BYTE, op2(Is, A), 0 }, |
| 621 | /*15*/ { "adc" , false, LONG, op2(Is, A), 0 }, |
| 622 | /*16*/ { "push" , false, NONE, op1(Si), 0 }, |
| 623 | /*17*/ { "pop" , false, NONE, op1(Si), 0 }, |
| 624 | |
| 625 | /*18*/ { "sbb" , true, BYTE, op2(R, E), 0 }, |
| 626 | /*19*/ { "sbb" , true, LONG, op2(R, E), 0 }, |
| 627 | /*1a*/ { "sbb" , true, BYTE, op2(E, R), 0 }, |
| 628 | /*1b*/ { "sbb" , true, LONG, op2(E, R), 0 }, |
| 629 | /*1c*/ { "sbb" , false, BYTE, op2(Is, A), 0 }, |
| 630 | /*1d*/ { "sbb" , false, LONG, op2(Is, A), 0 }, |
| 631 | /*1e*/ { "push" , false, NONE, op1(Si), 0 }, |
| 632 | /*1f*/ { "pop" , false, NONE, op1(Si), 0 }, |
| 633 | |
| 634 | /*20*/ { "and" , true, BYTE, op2(R, E), 0 }, |
| 635 | /*21*/ { "and" , true, LONG, op2(R, E), 0 }, |
| 636 | /*22*/ { "and" , true, BYTE, op2(E, R), 0 }, |
| 637 | /*23*/ { "and" , true, LONG, op2(E, R), 0 }, |
| 638 | /*24*/ { "and" , false, BYTE, op2(I, A), 0 }, |
| 639 | /*25*/ { "and" , false, LONG, op2(I, A), 0 }, |
| 640 | /*26*/ { "" , false, NONE, 0, 0 }, |
| 641 | /*27*/ { "daa" , false, NONE, 0, 0 }, |
| 642 | |
| 643 | /*28*/ { "sub" , true, BYTE, op2(R, E), 0 }, |
| 644 | /*29*/ { "sub" , true, LONG, op2(R, E), 0 }, |
| 645 | /*2a*/ { "sub" , true, BYTE, op2(E, R), 0 }, |
| 646 | /*2b*/ { "sub" , true, LONG, op2(E, R), 0 }, |
| 647 | /*2c*/ { "sub" , false, BYTE, op2(Is, A), 0 }, |
| 648 | /*2d*/ { "sub" , false, LONG, op2(Is, A), 0 }, |
| 649 | /*2e*/ { "" , false, NONE, 0, 0 }, |
| 650 | /*2f*/ { "das" , false, NONE, 0, 0 }, |
| 651 | |
| 652 | /*30*/ { "xor" , true, BYTE, op2(R, E), 0 }, |
| 653 | /*31*/ { "xor" , true, LONG, op2(R, E), 0 }, |
| 654 | /*32*/ { "xor" , true, BYTE, op2(E, R), 0 }, |
| 655 | /*33*/ { "xor" , true, LONG, op2(E, R), 0 }, |
| 656 | /*34*/ { "xor" , false, BYTE, op2(I, A), 0 }, |
| 657 | /*35*/ { "xor" , false, LONG, op2(I, A), 0 }, |
| 658 | /*36*/ { "" , false, NONE, 0, 0 }, |
| 659 | /*37*/ { "aaa" , false, NONE, 0, 0 }, |
| 660 | |
| 661 | /*38*/ { "cmp" , true, BYTE, op2(R, E), 0 }, |
| 662 | /*39*/ { "cmp" , true, LONG, op2(R, E), 0 }, |
| 663 | /*3a*/ { "cmp" , true, BYTE, op2(E, R), 0 }, |
| 664 | /*3b*/ { "cmp" , true, LONG, op2(E, R), 0 }, |
| 665 | /*3c*/ { "cmp" , false, BYTE, op2(Is, A), 0 }, |
| 666 | /*3d*/ { "cmp" , false, LONG, op2(Is, A), 0 }, |
| 667 | /*3e*/ { "" , false, NONE, 0, 0 }, |
| 668 | /*3f*/ { "aas" , false, NONE, 0, 0 }, |
| 669 | |
| 670 | /*40*/ { "inc" , false, LONG, op1(Ri), 0 }, |
| 671 | /*41*/ { "inc" , false, LONG, op1(Ri), 0 }, |
| 672 | /*42*/ { "inc" , false, LONG, op1(Ri), 0 }, |
| 673 | /*43*/ { "inc" , false, LONG, op1(Ri), 0 }, |
| 674 | /*44*/ { "inc" , false, LONG, op1(Ri), 0 }, |
| 675 | /*45*/ { "inc" , false, LONG, op1(Ri), 0 }, |
| 676 | /*46*/ { "inc" , false, LONG, op1(Ri), 0 }, |
| 677 | /*47*/ { "inc" , false, LONG, op1(Ri), 0 }, |
| 678 | |
| 679 | /*48*/ { "dec" , false, LONG, op1(Ri), 0 }, |
| 680 | /*49*/ { "dec" , false, LONG, op1(Ri), 0 }, |
| 681 | /*4a*/ { "dec" , false, LONG, op1(Ri), 0 }, |
| 682 | /*4b*/ { "dec" , false, LONG, op1(Ri), 0 }, |
| 683 | /*4c*/ { "dec" , false, LONG, op1(Ri), 0 }, |
| 684 | /*4d*/ { "dec" , false, LONG, op1(Ri), 0 }, |
| 685 | /*4e*/ { "dec" , false, LONG, op1(Ri), 0 }, |
| 686 | /*4f*/ { "dec" , false, LONG, op1(Ri), 0 }, |
| 687 | |
| 688 | /*50*/ { "push" , false, QUAD, op1(Ri), 0 }, |
| 689 | /*51*/ { "push" , false, QUAD, op1(Ri), 0 }, |
| 690 | /*52*/ { "push" , false, QUAD, op1(Ri), 0 }, |
| 691 | /*53*/ { "push" , false, QUAD, op1(Ri), 0 }, |
| 692 | /*54*/ { "push" , false, QUAD, op1(Ri), 0 }, |
| 693 | /*55*/ { "push" , false, QUAD, op1(Ri), 0 }, |
| 694 | /*56*/ { "push" , false, QUAD, op1(Ri), 0 }, |
| 695 | /*57*/ { "push" , false, QUAD, op1(Ri), 0 }, |
| 696 | |
| 697 | /*58*/ { "pop" , false, QUAD, op1(Ri), 0 }, |
| 698 | /*59*/ { "pop" , false, QUAD, op1(Ri), 0 }, |
| 699 | /*5a*/ { "pop" , false, QUAD, op1(Ri), 0 }, |
| 700 | /*5b*/ { "pop" , false, QUAD, op1(Ri), 0 }, |
| 701 | /*5c*/ { "pop" , false, QUAD, op1(Ri), 0 }, |
| 702 | /*5d*/ { "pop" , false, QUAD, op1(Ri), 0 }, |
| 703 | /*5e*/ { "pop" , false, QUAD, op1(Ri), 0 }, |
| 704 | /*5f*/ { "pop" , false, QUAD, op1(Ri), 0 }, |
| 705 | |
| 706 | /*60*/ { "pusha" , false, LONG, 0, 0 }, |
| 707 | /*61*/ { "popa" , false, LONG, 0, 0 }, |
| 708 | /*62*/ { "bound" , true, LONG, op2(E, R), 0 }, |
| 709 | #if 0 |
| 710 | /*63*/ { "arpl" , true, NONE, op2(Ew,Rw), 0 },/* XXX in 32 bit mode */ |
| 711 | #else |
| 712 | /*63*/ { "movslq" ,true, NONE, op2(Ed, R), 0 },/* aka MOVSXD, in 64bit mode */ |
| 713 | #endif |
| 714 | |
| 715 | /*64*/ { "" , false, NONE, 0, 0 }, |
| 716 | /*65*/ { "" , false, NONE, 0, 0 }, |
| 717 | /*66*/ { "" , false, NONE, 0, 0 }, |
| 718 | /*67*/ { "" , false, NONE, 0, 0 }, |
| 719 | |
| 720 | /*68*/ { "push" , false, LONG, op1(I), 0 }, |
| 721 | /*69*/ { "imul" , true, LONG, op3(I,E,R), 0 }, |
| 722 | /*6a*/ { "push" , false, LONG, op1(Ib), 0 }, |
| 723 | /*6b*/ { "imul" , true, LONG, op3(Ibs,E,R),0 }, |
| 724 | /*6c*/ { "ins" , false, BYTE, op2(DX, DI), 0 }, |
| 725 | /*6d*/ { "ins" , false, LONG, op2(DX, DI), 0 }, |
| 726 | /*6e*/ { "outs" , false, BYTE, op2(SI, DX), 0 }, |
| 727 | /*6f*/ { "outs" , false, LONG, op2(SI, DX), 0 }, |
| 728 | |
| 729 | /*70*/ { "jo" , false, NONE, op1(Db), 0 }, |
| 730 | /*71*/ { "jno" , false, NONE, op1(Db), 0 }, |
| 731 | /*72*/ { "jb" , false, NONE, op1(Db), 0 }, |
| 732 | /*73*/ { "jnb" , false, NONE, op1(Db), 0 }, |
| 733 | /*74*/ { "jz" , false, NONE, op1(Db), 0 }, |
| 734 | /*75*/ { "jnz" , false, NONE, op1(Db), 0 }, |
| 735 | /*76*/ { "jbe" , false, NONE, op1(Db), 0 }, |
| 736 | /*77*/ { "jnbe" , false, NONE, op1(Db), 0 }, |
| 737 | |
| 738 | /*78*/ { "js" , false, NONE, op1(Db), 0 }, |
| 739 | /*79*/ { "jns" , false, NONE, op1(Db), 0 }, |
| 740 | /*7a*/ { "jp" , false, NONE, op1(Db), 0 }, |
| 741 | /*7b*/ { "jnp" , false, NONE, op1(Db), 0 }, |
| 742 | /*7c*/ { "jl" , false, NONE, op1(Db), 0 }, |
| 743 | /*7d*/ { "jnl" , false, NONE, op1(Db), 0 }, |
| 744 | /*7e*/ { "jle" , false, NONE, op1(Db), 0 }, |
| 745 | /*7f*/ { "jnle" , false, NONE, op1(Db), 0 }, |
| 746 | |
| 747 | /*80*/ { "" , true, BYTE, op2(I, E), db_Grp1 }, |
| 748 | /*81*/ { "" , true, LONG, op2(I, E), db_Grp1 }, |
| 749 | /*82*/ { "" , true, BYTE, op2(Is,E), db_Grp1 }, |
| 750 | /*83*/ { "" , true, LONG, op2(Ibs,E), db_Grp1 }, |
| 751 | /*84*/ { "test" , true, BYTE, op2(R, E), 0 }, |
| 752 | /*85*/ { "test" , true, LONG, op2(R, E), 0 }, |
| 753 | /*86*/ { "xchg" , true, BYTE, op2(R, E), 0 }, |
| 754 | /*87*/ { "xchg" , true, LONG, op2(R, E), 0 }, |
| 755 | |
| 756 | /*88*/ { "mov" , true, BYTE, op2(R, E), 0 }, |
| 757 | /*89*/ { "mov" , true, LONG, op2(R, E), 0 }, |
| 758 | /*8a*/ { "mov" , true, BYTE, op2(E, R), 0 }, |
| 759 | /*8b*/ { "mov" , true, LONG, op2(E, R), 0 }, |
| 760 | /*8c*/ { "mov" , true, NONE, op2(S, Ew), 0 }, |
| 761 | /*8d*/ { "lea" , true, LONG, op2(E, R), 0 }, |
| 762 | /*8e*/ { "mov" , true, NONE, op2(Ew, S), 0 }, |
| 763 | /*8f*/ { "pop" , true, LONG, op1(E), 0 }, |
| 764 | |
| 765 | /*90*/ { "nop" , false, NONE, 0, 0 }, |
| 766 | /*91*/ { "xchg" , false, LONG, op2(A, Ri), 0 }, |
| 767 | /*92*/ { "xchg" , false, LONG, op2(A, Ri), 0 }, |
| 768 | /*93*/ { "xchg" , false, LONG, op2(A, Ri), 0 }, |
| 769 | /*94*/ { "xchg" , false, LONG, op2(A, Ri), 0 }, |
| 770 | /*95*/ { "xchg" , false, LONG, op2(A, Ri), 0 }, |
| 771 | /*96*/ { "xchg" , false, LONG, op2(A, Ri), 0 }, |
| 772 | /*97*/ { "xchg" , false, LONG, op2(A, Ri), 0 }, |
| 773 | |
| 774 | /*98*/ { "cbw" , false, SDEP, 0, "cwde" }, /* cbw/cwde */ |
| 775 | /*99*/ { "cwd" , false, SDEP, 0, "cdq" }, /* cwd/cdq */ |
| 776 | /*9a*/ { "lcall" , false, NONE, op1(OS), 0 }, |
| 777 | /*9b*/ { "wait" , false, NONE, 0, 0 }, |
| 778 | /*9c*/ { "pushf" , false, LONG, 0, 0 }, |
| 779 | /*9d*/ { "popf" , false, LONG, 0, 0 }, |
| 780 | /*9e*/ { "sahf" , false, NONE, 0, 0 }, |
| 781 | /*9f*/ { "lahf" , false, NONE, 0, 0 }, |
| 782 | |
| 783 | /*a0*/ { "mov" , false, BYTE, op2(O, A), 0 }, |
| 784 | /*a1*/ { "mov" , false, LONG, op2(O, A), 0 }, |
| 785 | /*a2*/ { "mov" , false, BYTE, op2(A, O), 0 }, |
| 786 | /*a3*/ { "mov" , false, LONG, op2(A, O), 0 }, |
| 787 | /*a4*/ { "movs" , false, BYTE, op2(SI,DI), 0 }, |
| 788 | /*a5*/ { "movs" , false, LONG, op2(SI,DI), 0 }, |
| 789 | /*a6*/ { "cmps" , false, BYTE, op2(SI,DI), 0 }, |
| 790 | /*a7*/ { "cmps" , false, LONG, op2(SI,DI), 0 }, |
| 791 | |
| 792 | /*a8*/ { "test" , false, BYTE, op2(I, A), 0 }, |
| 793 | /*a9*/ { "test" , false, LONG, op2(I, A), 0 }, |
| 794 | /*aa*/ { "stos" , false, BYTE, op1(DI), 0 }, |
| 795 | /*ab*/ { "stos" , false, LONG, op1(DI), 0 }, |
| 796 | /*ac*/ { "lods" , false, BYTE, op1(SI), 0 }, |
| 797 | /*ad*/ { "lods" , false, LONG, op1(SI), 0 }, |
| 798 | /*ae*/ { "scas" , false, BYTE, op1(SI), 0 }, |
| 799 | /*af*/ { "scas" , false, LONG, op1(SI), 0 }, |
| 800 | |
| 801 | /*b0*/ { "mov" , false, BYTE, op2(I, Ri), 0 }, |
| 802 | /*b1*/ { "mov" , false, BYTE, op2(I, Ri), 0 }, |
| 803 | /*b2*/ { "mov" , false, BYTE, op2(I, Ri), 0 }, |
| 804 | /*b3*/ { "mov" , false, BYTE, op2(I, Ri), 0 }, |
| 805 | /*b4*/ { "mov" , false, BYTE, op2(I, Ri), 0 }, |
| 806 | /*b5*/ { "mov" , false, BYTE, op2(I, Ri), 0 }, |
| 807 | /*b6*/ { "mov" , false, BYTE, op2(I, Ri), 0 }, |
| 808 | /*b7*/ { "mov" , false, BYTE, op2(I, Ri), 0 }, |
| 809 | |
| 810 | /*b8*/ { "mov" , false, LONG, op2(Iq, Ri), 0 }, |
| 811 | /*b9*/ { "mov" , false, LONG, op2(Iq, Ri), 0 }, |
| 812 | /*ba*/ { "mov" , false, LONG, op2(Iq, Ri), 0 }, |
| 813 | /*bb*/ { "mov" , false, LONG, op2(Iq, Ri), 0 }, |
| 814 | /*bc*/ { "mov" , false, LONG, op2(Iq, Ri), 0 }, |
| 815 | /*bd*/ { "mov" , false, LONG, op2(Iq, Ri), 0 }, |
| 816 | /*be*/ { "mov" , false, LONG, op2(Iq, Ri), 0 }, |
| 817 | /*bf*/ { "mov" , false, LONG, op2(Iq, Ri), 0 }, |
| 818 | |
| 819 | /*c0*/ { "" , true, BYTE, op2(Ib, E), db_Grp2 }, |
| 820 | /*c1*/ { "" , true, LONG, op2(Ib, E), db_Grp2 }, |
| 821 | /*c2*/ { "ret" , false, NONE, op1(Iw), 0 }, |
| 822 | /*c3*/ { "ret" , false, NONE, 0, 0 }, |
| 823 | /*c4*/ { "les" , true, LONG, op2(E, R), 0 }, |
| 824 | /*c5*/ { "lds" , true, LONG, op2(E, R), 0 }, |
| 825 | /*c6*/ { "mov" , true, BYTE, op2(I, E), 0 }, |
| 826 | /*c7*/ { "mov" , true, LONG, op2(I, E), 0 }, |
| 827 | |
| 828 | /*c8*/ { "enter" , false, NONE, op2(Ib, Iw), 0 }, |
| 829 | /*c9*/ { "leave" , false, NONE, 0, 0 }, |
| 830 | /*ca*/ { "lret" , false, NONE, op1(Iw), 0 }, |
| 831 | /*cb*/ { "lret" , false, NONE, 0, 0 }, |
| 832 | /*cc*/ { "int" , false, NONE, op1(o3), 0 }, |
| 833 | /*cd*/ { "int" , false, NONE, op1(Ib), 0 }, |
| 834 | /*ce*/ { "into" , false, NONE, 0, 0 }, |
| 835 | /*cf*/ { "iret" , false, NONE, 0, 0 }, |
| 836 | |
| 837 | /*d0*/ { "" , true, BYTE, op2(o1, E), db_Grp2 }, |
| 838 | /*d1*/ { "" , true, LONG, op2(o1, E), db_Grp2 }, |
| 839 | /*d2*/ { "" , true, BYTE, op2(CL, E), db_Grp2 }, |
| 840 | /*d3*/ { "" , true, LONG, op2(CL, E), db_Grp2 }, |
| 841 | /*d4*/ { "aam" , true, NONE, 0, 0 }, |
| 842 | /*d5*/ { "aad" , true, NONE, 0, 0 }, |
| 843 | /*d6*/ { "" , false, NONE, 0, 0 }, |
| 844 | /*d7*/ { "xlat" , false, BYTE, op1(BX), 0 }, |
| 845 | |
| 846 | /*d8*/ { "" , true, NONE, 0, db_Esc8 }, |
| 847 | /*d9*/ { "" , true, NONE, 0, db_Esc9 }, |
| 848 | /*da*/ { "" , true, NONE, 0, db_Esca }, |
| 849 | /*db*/ { "" , true, NONE, 0, db_Escb }, |
| 850 | /*dc*/ { "" , true, NONE, 0, db_Escc }, |
| 851 | /*dd*/ { "" , true, NONE, 0, db_Escd }, |
| 852 | /*de*/ { "" , true, NONE, 0, db_Esce }, |
| 853 | /*df*/ { "" , true, NONE, 0, db_Escf }, |
| 854 | |
| 855 | /*e0*/ { "loopne" ,false, NONE, op1(Db), 0 }, |
| 856 | /*e1*/ { "loope" , false, NONE, op1(Db), 0 }, |
| 857 | /*e2*/ { "loop" , false, NONE, op1(Db), 0 }, |
| 858 | /*e3*/ { "jcxz" , false, SDEP, op1(Db), "jecxz" }, |
| 859 | /*e4*/ { "in" , false, BYTE, op2(Ib, A), 0 }, |
| 860 | /*e5*/ { "in" , false, LONG, op2(Ib, A) , 0 }, |
| 861 | /*e6*/ { "out" , false, BYTE, op2(A, Ib), 0 }, |
| 862 | /*e7*/ { "out" , false, LONG, op2(A, Ib) , 0 }, |
| 863 | |
| 864 | /*e8*/ { "call" , false, NONE, op1(Dl), 0 }, |
| 865 | /*e9*/ { "jmp" , false, NONE, op1(Dl), 0 }, |
| 866 | /*ea*/ { "ljmp" , false, NONE, op1(OS), 0 }, |
| 867 | /*eb*/ { "jmp" , false, NONE, op1(Db), 0 }, |
| 868 | /*ec*/ { "in" , false, BYTE, op2(DX, A), 0 }, |
| 869 | /*ed*/ { "in" , false, LONG, op2(DX, A) , 0 }, |
| 870 | /*ee*/ { "out" , false, BYTE, op2(A, DX), 0 }, |
| 871 | /*ef*/ { "out" , false, LONG, op2(A, DX) , 0 }, |
| 872 | |
| 873 | /*f0*/ { "" , false, NONE, 0, 0 }, |
| 874 | /*f1*/ { "" , false, NONE, 0, 0 }, |
| 875 | /*f2*/ { "" , false, NONE, 0, 0 }, |
| 876 | /*f3*/ { "" , false, NONE, 0, 0 }, |
| 877 | /*f4*/ { "hlt" , false, NONE, 0, 0 }, |
| 878 | /*f5*/ { "cmc" , false, NONE, 0, 0 }, |
| 879 | /*f6*/ { "" , true, BYTE, 0, db_Grp3 }, |
| 880 | /*f7*/ { "" , true, LONG, 0, db_Grp3 }, |
| 881 | |
| 882 | /*f8*/ { "clc" , false, NONE, 0, 0 }, |
| 883 | /*f9*/ { "stc" , false, NONE, 0, 0 }, |
| 884 | /*fa*/ { "cli" , false, NONE, 0, 0 }, |
| 885 | /*fb*/ { "sti" , false, NONE, 0, 0 }, |
| 886 | /*fc*/ { "cld" , false, NONE, 0, 0 }, |
| 887 | /*fd*/ { "std" , false, NONE, 0, 0 }, |
| 888 | /*fe*/ { "" , true, NONE, 0, db_Grp4 }, |
| 889 | /*ff*/ { "" , true, NONE, 0, db_Grp5 }, |
| 890 | }; |
| 891 | |
| 892 | const struct inst db_bad_inst = |
| 893 | { "???" , false, NONE, 0, 0 } |
| 894 | ; |
| 895 | |
| 896 | #define f_mod(rex, byte) ((byte)>>6) |
| 897 | #define f_reg(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_R ? 0x8 : 0x0)) |
| 898 | #define f_rm(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0)) |
| 899 | |
| 900 | #define sib_ss(rex, byte) ((byte)>>6) |
| 901 | #define sib_index(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_X ? 0x8 : 0x0)) |
| 902 | #define sib_base(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0)) |
| 903 | |
| 904 | struct i_addr { |
| 905 | int is_reg; /* if reg, reg number is in 'disp' */ |
| 906 | int disp; |
| 907 | const char * base; |
| 908 | const char * index; |
| 909 | int ss; |
| 910 | }; |
| 911 | |
| 912 | const char * const db_index_reg_32[8] = { |
| 913 | "%ebx,%esi" , |
| 914 | "%ebx,%edi" , |
| 915 | "%ebp,%esi" , |
| 916 | "%ebp,%edi" , |
| 917 | "%esi" , |
| 918 | "%edi" , |
| 919 | "%ebp" , |
| 920 | "%ebx" |
| 921 | }; |
| 922 | |
| 923 | #define DB_REG_DFLT 0 |
| 924 | #define DB_REG_REX 1 |
| 925 | |
| 926 | const char * const db_reg[2][4][16] = { |
| 927 | {{"%al" , "%cl" , "%dl" , "%bl" , "%ah" , "%ch" , "%dh" , "%bh" , |
| 928 | "%r8b" , "%r9b" , "%r10b" , "%r11b" , "%r12b" , "%r13b" , "%r14b" , "%r15b" }, |
| 929 | {"%ax" , "%cx" , "%dx" , "%bx" , "%sp" , "%bp" , "%si" , "%di" , |
| 930 | "%r8w" , "%r9w" , "%r10w" , "%r11w" , "%r12w" , "%r13w" , "%r14w" , "%r15w" }, |
| 931 | {"%eax" , "%ecx" , "%edx" , "%ebx" , "%esp" , "%ebp" , "%esi" , "%edi" , |
| 932 | "%r8d" , "%r9d" , "%r10d" , "%r11d" , "%r12d" , "%r13d" , "%r14d" , "%r15d" }, |
| 933 | {"%rax" , "%rcx" , "%rdx" , "%rbx" , "%rsp" , "%rbp" , "%rsi" , "%rdi" , |
| 934 | "%r8" , "%r9" , "%r10" , "%r11" , "%r12" , "%r13" , "%r14" , "%r15" }}, |
| 935 | |
| 936 | {{"%al" , "%cl" , "%dl" , "%bl" , "%spl" , "%bpl" , "%sil" , "%dil" , |
| 937 | "%r8b" , "%r9b" , "%r10b" , "%r11b" , "%r12b" , "%r13b" , "%r14b" , "%r15b" }, |
| 938 | {"%ax" , "%cx" , "%dx" , "%bx" , "%sp" , "%bp" , "%si" , "%di" , |
| 939 | "%r8w" , "%r9w" , "%r10w" , "%r11w" , "%r12w" , "%r13w" , "%r14w" , "%r15w" }, |
| 940 | {"%eax" , "%ecx" , "%edx" , "%ebx" , "%esp" , "%ebp" , "%esi" , "%edi" , |
| 941 | "%r8d" , "%r9d" , "%r10d" , "%r11d" , "%r12d" , "%r13d" , "%r14d" , "%r15d" }, |
| 942 | {"%rax" , "%rcx" , "%rdx" , "%rbx" , "%rsp" , "%rbp" , "%rsi" , "%rdi" , |
| 943 | "%r8" , "%r9" , "%r10" , "%r11" , "%r12" , "%r13" , "%r14" , "%r15" }} |
| 944 | }; |
| 945 | |
| 946 | const char * const db_seg_reg[8] = { |
| 947 | "%es" , "%cs" , "%ss" , "%ds" , "%fs" , "%gs" , "" , "" |
| 948 | }; |
| 949 | |
| 950 | /* |
| 951 | * lengths for size attributes |
| 952 | */ |
| 953 | const int db_lengths[] = { |
| 954 | 1, /* BYTE */ |
| 955 | 2, /* WORD */ |
| 956 | 4, /* LONG */ |
| 957 | 4, /* QUAD - 64bit immediates are done by Iq */ |
| 958 | 4, /* SNGL */ |
| 959 | 8, /* DBLR */ |
| 960 | 10, /* EXTR */ |
| 961 | }; |
| 962 | |
| 963 | const char * const rex_str[0x10] = { |
| 964 | "rex " , /* 0x40 */ |
| 965 | "rex.b " , /* 0x41 */ |
| 966 | "rex.x " , /* 0x42 */ |
| 967 | "rex.xb " , /* 0x43 */ |
| 968 | "rex.r " , /* 0x44 */ |
| 969 | "rex.rb " , /* 0x45 */ |
| 970 | "rex.rx " , /* 0x46 */ |
| 971 | "rex.rxb " , /* 0x47 */ |
| 972 | "rex.w " , /* 0x48 */ |
| 973 | "rex.wb " , /* 0x49 */ |
| 974 | "rex.wx " , /* 0x4a */ |
| 975 | "rex.wxb " , /* 0x4b */ |
| 976 | "rex.wr " , /* 0x4c */ |
| 977 | "rex.wrb " , /* 0x4d */ |
| 978 | "rex.wrx " , /* 0x4e */ |
| 979 | "rex.wrxb " , /* 0x4f */ |
| 980 | }; |
| 981 | |
| 982 | #define get_value_inc(result, loc, size, is_signed) \ |
| 983 | do { \ |
| 984 | result = db_get_value((loc), (size), (is_signed)); \ |
| 985 | (loc) += (size); \ |
| 986 | } while (0) |
| 987 | |
| 988 | |
| 989 | db_addr_t db_read_address(db_addr_t, int, u_int, int, struct i_addr *); |
| 990 | void db_print_address(const char *, u_int, int, struct i_addr *); |
| 991 | db_addr_t db_disasm_esc(db_addr_t, int, u_int, int, int, const char *); |
| 992 | |
| 993 | /* |
| 994 | * Read address at location and return updated location. |
| 995 | */ |
| 996 | db_addr_t |
| 997 | db_read_address(db_addr_t loc, int short_addr, u_int rex, int regmodrm, |
| 998 | struct i_addr *addrp) |
| 999 | /* addrp: out */ |
| 1000 | { |
| 1001 | int mod, rm, sib, index, disp, size, have_sib; |
| 1002 | |
| 1003 | size = (short_addr ? LONG : QUAD); |
| 1004 | mod = f_mod(rex, regmodrm); |
| 1005 | rm = f_rm(rex, regmodrm); |
| 1006 | |
| 1007 | if (mod == 3) { |
| 1008 | addrp->is_reg = true; |
| 1009 | addrp->disp = rm; |
| 1010 | return (loc); |
| 1011 | } |
| 1012 | addrp->is_reg = false; |
| 1013 | addrp->index = 0; |
| 1014 | |
| 1015 | if ((rm & 0x7) == 4) { |
| 1016 | get_value_inc(sib, loc, 1, false); |
| 1017 | rm = sib_base(rex, sib); |
| 1018 | index = sib_index(rex, sib); |
| 1019 | if (index != 4) |
| 1020 | addrp->index = db_reg[1][size][index]; |
| 1021 | addrp->ss = sib_ss(rex, sib); |
| 1022 | have_sib = 1; |
| 1023 | } else |
| 1024 | have_sib = 0; |
| 1025 | |
| 1026 | switch (mod) { |
| 1027 | case 0: |
| 1028 | if (rm == 5) { |
| 1029 | get_value_inc(addrp->disp, loc, 4, false); |
| 1030 | if (have_sib) |
| 1031 | addrp->base = 0; |
| 1032 | else if (short_addr) |
| 1033 | addrp->base = "%eip" ; |
| 1034 | else |
| 1035 | addrp->base = "%rip" ; |
| 1036 | } else { |
| 1037 | addrp->disp = 0; |
| 1038 | addrp->base = db_reg[1][size][rm]; |
| 1039 | } |
| 1040 | break; |
| 1041 | case 1: |
| 1042 | get_value_inc(disp, loc, 1, true); |
| 1043 | addrp->disp = disp; |
| 1044 | addrp->base = db_reg[1][size][rm]; |
| 1045 | break; |
| 1046 | case 2: |
| 1047 | get_value_inc(disp, loc, 4, false); |
| 1048 | addrp->disp = disp; |
| 1049 | addrp->base = db_reg[1][size][rm]; |
| 1050 | break; |
| 1051 | } |
| 1052 | return (loc); |
| 1053 | } |
| 1054 | |
| 1055 | void |
| 1056 | db_print_address(const char * seg, u_int rex, int size, struct i_addr *addrp) |
| 1057 | { |
| 1058 | if (addrp->is_reg) { |
| 1059 | int ext = ((rex & REX_B) != 0); |
| 1060 | db_printf("%s" , db_reg[ext][size][addrp->disp]); |
| 1061 | return; |
| 1062 | } |
| 1063 | |
| 1064 | if (seg) |
| 1065 | db_printf("%s:" , seg); |
| 1066 | |
| 1067 | db_printsym((db_addr_t)addrp->disp, DB_STGY_ANY, db_printf); |
| 1068 | |
| 1069 | if (addrp->base != 0 || addrp->index != 0) { |
| 1070 | db_printf("(" ); |
| 1071 | if (addrp->base) |
| 1072 | db_printf("%s" , addrp->base); |
| 1073 | if (addrp->index) |
| 1074 | db_printf(",%s,%d" , addrp->index, 1<<addrp->ss); |
| 1075 | db_printf(")" ); |
| 1076 | } |
| 1077 | } |
| 1078 | |
| 1079 | /* |
| 1080 | * Disassemble floating-point ("escape") instruction |
| 1081 | * and return updated location. |
| 1082 | */ |
| 1083 | db_addr_t |
| 1084 | db_disasm_esc(db_addr_t loc, int inst, u_int rex, int short_addr, int size, |
| 1085 | const char * seg) |
| 1086 | { |
| 1087 | int regmodrm; |
| 1088 | const struct finst *fp; |
| 1089 | int mod; |
| 1090 | struct i_addr address; |
| 1091 | const char * name; |
| 1092 | |
| 1093 | get_value_inc(regmodrm, loc, 1, false); |
| 1094 | fp = &db_Esc_inst[inst - 0xd8][f_reg(rex, regmodrm)]; |
| 1095 | mod = f_mod(rex, regmodrm); |
| 1096 | if (mod != 3) { |
| 1097 | if (*fp->f_name == '\0') { |
| 1098 | db_printf("<bad instruction>" ); |
| 1099 | return (loc); |
| 1100 | } |
| 1101 | /* |
| 1102 | * Normal address modes. |
| 1103 | */ |
| 1104 | loc = db_read_address(loc, short_addr, rex, regmodrm, &address); |
| 1105 | db_printf("%s" , fp->f_name); |
| 1106 | switch (fp->f_size) { |
| 1107 | case SNGL: |
| 1108 | db_printf("s" ); |
| 1109 | break; |
| 1110 | case DBLR: |
| 1111 | db_printf("l" ); |
| 1112 | break; |
| 1113 | case EXTR: |
| 1114 | db_printf("t" ); |
| 1115 | break; |
| 1116 | case WORD: |
| 1117 | db_printf("s" ); |
| 1118 | break; |
| 1119 | case LONG: |
| 1120 | db_printf("l" ); |
| 1121 | break; |
| 1122 | case QUAD: |
| 1123 | db_printf("q" ); |
| 1124 | break; |
| 1125 | default: |
| 1126 | break; |
| 1127 | } |
| 1128 | db_printf("\t" ); |
| 1129 | db_print_address(seg, rex, BYTE, &address); |
| 1130 | } else { |
| 1131 | /* |
| 1132 | * 'reg-reg' - special formats |
| 1133 | */ |
| 1134 | switch (fp->f_rrmode) { |
| 1135 | case op2(ST,STI): |
| 1136 | name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; |
| 1137 | db_printf("%s\t%%st,%%st(%d)" , name, f_rm(rex, regmodrm)); |
| 1138 | break; |
| 1139 | case op2(STI,ST): |
| 1140 | name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; |
| 1141 | db_printf("%s\t%%st(%d),%%st" , name, f_rm(rex, regmodrm)); |
| 1142 | break; |
| 1143 | case op1(STI): |
| 1144 | name = (fp->f_rrname) ? fp->f_rrname : fp->f_name; |
| 1145 | db_printf("%s\t%%st(%d)" , name, f_rm(rex, regmodrm)); |
| 1146 | break; |
| 1147 | case op1(X): |
| 1148 | name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)]; |
| 1149 | if (*name == '\0') |
| 1150 | goto bad; |
| 1151 | db_printf("%s" , name); |
| 1152 | break; |
| 1153 | case op1(XA): |
| 1154 | name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)]; |
| 1155 | if (*name == '\0') |
| 1156 | goto bad; |
| 1157 | db_printf("%s\t%%ax" , name); |
| 1158 | break; |
| 1159 | default: |
| 1160 | bad: |
| 1161 | db_printf("<bad instruction>" ); |
| 1162 | break; |
| 1163 | } |
| 1164 | } |
| 1165 | |
| 1166 | return (loc); |
| 1167 | } |
| 1168 | |
| 1169 | /* |
| 1170 | * Disassemble instruction at 'loc'. 'altfmt' specifies an |
| 1171 | * (optional) alternate format. Return address of start of |
| 1172 | * next instruction. |
| 1173 | */ |
| 1174 | db_addr_t |
| 1175 | db_disasm(db_addr_t loc, bool altfmt) |
| 1176 | { |
| 1177 | int inst; |
| 1178 | int size; |
| 1179 | int short_addr; |
| 1180 | const char *seg; |
| 1181 | const struct inst *ip; |
| 1182 | const char *i_name; |
| 1183 | int i_size; |
| 1184 | int i_mode; |
| 1185 | int regmodrm = 0; |
| 1186 | bool first; |
| 1187 | int displ; |
| 1188 | int prefix; |
| 1189 | int imm; |
| 1190 | int imm2; |
| 1191 | uint64_t imm64; |
| 1192 | int len; |
| 1193 | struct i_addr address; |
| 1194 | #ifdef _KERNEL |
| 1195 | pt_entry_t *pte, *pde; |
| 1196 | #endif |
| 1197 | u_int rex = 0; |
| 1198 | |
| 1199 | #ifdef _KERNEL |
| 1200 | /* |
| 1201 | * Don't try to disassemble the location if the mapping is invalid. |
| 1202 | * If we do, we'll fault, and end up debugging the debugger! |
| 1203 | * in the case of largepages, "pte" is really the pde and "pde" is |
| 1204 | * really the entry for the pdp itself. |
| 1205 | */ |
| 1206 | if ((vaddr_t)loc >= VM_MIN_KERNEL_ADDRESS) |
| 1207 | pte = kvtopte((vaddr_t)loc); |
| 1208 | else |
| 1209 | pte = vtopte((vaddr_t)loc); |
| 1210 | pde = vtopte((vaddr_t)pte); |
| 1211 | if ((*pde & PG_V) == 0 || (*pte & PG_V) == 0) { |
| 1212 | db_printf("invalid address\n" ); |
| 1213 | return (loc); |
| 1214 | } |
| 1215 | #endif |
| 1216 | |
| 1217 | get_value_inc(inst, loc, 1, false); |
| 1218 | short_addr = false; |
| 1219 | size = LONG; |
| 1220 | seg = 0; |
| 1221 | |
| 1222 | /* |
| 1223 | * Get prefixes |
| 1224 | */ |
| 1225 | prefix = true; |
| 1226 | do { |
| 1227 | switch (inst) { |
| 1228 | case 0x66: /* data16 */ |
| 1229 | size = WORD; |
| 1230 | break; |
| 1231 | case 0x67: |
| 1232 | short_addr = true; |
| 1233 | break; |
| 1234 | case 0x26: |
| 1235 | seg = "%es" ; |
| 1236 | break; |
| 1237 | case 0x36: |
| 1238 | seg = "%ss" ; |
| 1239 | break; |
| 1240 | case 0x2e: |
| 1241 | seg = "%cs" ; |
| 1242 | break; |
| 1243 | case 0x3e: |
| 1244 | seg = "%ds" ; |
| 1245 | break; |
| 1246 | case 0x64: |
| 1247 | seg = "%fs" ; |
| 1248 | break; |
| 1249 | case 0x65: |
| 1250 | seg = "%gs" ; |
| 1251 | break; |
| 1252 | case 0xf0: |
| 1253 | db_printf("lock " ); |
| 1254 | break; |
| 1255 | case 0xf2: |
| 1256 | db_printf("repne " ); |
| 1257 | break; |
| 1258 | case 0xf3: |
| 1259 | db_printf("repe " ); /* XXX repe VS rep */ |
| 1260 | break; |
| 1261 | default: |
| 1262 | prefix = false; |
| 1263 | break; |
| 1264 | } |
| 1265 | if (inst >= 0x40 && inst <= 0x4f) { |
| 1266 | rex = inst; |
| 1267 | prefix = true; |
| 1268 | } |
| 1269 | if (prefix) |
| 1270 | get_value_inc(inst, loc, 1, false); |
| 1271 | } while (prefix); |
| 1272 | |
| 1273 | if (rex != 0) { |
| 1274 | if (rex & REX_W) |
| 1275 | size = QUAD; |
| 1276 | if (altfmt == true) /* XXX */ |
| 1277 | db_printf("%s" , rex_str[rex & 0x0f]); |
| 1278 | } |
| 1279 | |
| 1280 | if (inst >= 0xd8 && inst <= 0xdf) { |
| 1281 | loc = db_disasm_esc(loc, inst, rex, short_addr, size, seg); |
| 1282 | db_printf("\n" ); |
| 1283 | return (loc); |
| 1284 | } |
| 1285 | |
| 1286 | if (inst == 0x0f) { |
| 1287 | get_value_inc(inst, loc, 1, false); |
| 1288 | ip = db_inst_0f[inst>>4]; |
| 1289 | if (ip == 0) |
| 1290 | ip = &db_bad_inst; |
| 1291 | else |
| 1292 | ip = &ip[inst&0xf]; |
| 1293 | } else { |
| 1294 | ip = &db_inst_table[inst]; |
| 1295 | } |
| 1296 | |
| 1297 | if (ip->i_has_modrm) { |
| 1298 | get_value_inc(regmodrm, loc, 1, false); |
| 1299 | loc = db_read_address(loc, short_addr, rex, regmodrm, &address); |
| 1300 | } |
| 1301 | |
| 1302 | i_name = ip->i_name; |
| 1303 | i_size = ip->i_size; |
| 1304 | i_mode = ip->i_mode; |
| 1305 | |
| 1306 | if (ip->i_extra == db_Grp9 && f_mod(rex, regmodrm) == 3) { |
| 1307 | ip = &db_Grp9b[f_reg(rex, regmodrm)]; |
| 1308 | i_name = ip->i_name; |
| 1309 | i_size = ip->i_size; |
| 1310 | i_mode = ip->i_mode; |
| 1311 | } else if (ip->i_extra == (const char *)db_Grp1 || |
| 1312 | ip->i_extra == (const char *)db_Grp2 || |
| 1313 | ip->i_extra == (const char *)db_Grp6 || |
| 1314 | ip->i_extra == (const char *)db_Grp7 || |
| 1315 | ip->i_extra == (const char *)db_Grp8 || |
| 1316 | ip->i_extra == (const char *)db_Grp9) { |
| 1317 | if (ip->i_extra == (const char *)db_Grp7 && regmodrm == 0xf8) { |
| 1318 | i_name = "swapgs" ; |
| 1319 | i_mode = 0; |
| 1320 | } else if (ip->i_extra == (const char *)db_Grp7 && regmodrm == 0xcb) { |
| 1321 | i_name = "stac" ; |
| 1322 | i_mode = 0; |
| 1323 | } else if (ip->i_extra == (const char *)db_Grp7 && regmodrm == 0xca) { |
| 1324 | i_name = "clac" ; |
| 1325 | i_mode = 0; |
| 1326 | } else { |
| 1327 | i_name = ((const char * const *)ip->i_extra) |
| 1328 | [f_reg(rex, regmodrm)]; |
| 1329 | } |
| 1330 | } else if (ip->i_extra == (const char *)db_Grp3) { |
| 1331 | ip = (const struct inst *)ip->i_extra; |
| 1332 | ip = &ip[f_reg(rex, regmodrm)]; |
| 1333 | i_name = ip->i_name; |
| 1334 | i_mode = ip->i_mode; |
| 1335 | } else if (ip->i_extra == (const char *)db_Grp4 || |
| 1336 | ip->i_extra == (const char *)db_Grp5) { |
| 1337 | ip = (const struct inst *)ip->i_extra; |
| 1338 | ip = &ip[f_reg(rex, regmodrm)]; |
| 1339 | i_name = ip->i_name; |
| 1340 | i_mode = ip->i_mode; |
| 1341 | i_size = ip->i_size; |
| 1342 | } |
| 1343 | |
| 1344 | if (i_size == SDEP) { |
| 1345 | if (size == LONG) |
| 1346 | db_printf("%s" , i_name); |
| 1347 | else |
| 1348 | db_printf("%s" , (const char *)ip->i_extra); |
| 1349 | } else { |
| 1350 | db_printf("%s" , i_name); |
| 1351 | if (i_size != NONE) { |
| 1352 | if (i_size == BYTE) { |
| 1353 | db_printf("b" ); |
| 1354 | size = BYTE; |
| 1355 | } else if (i_size == WORD) { |
| 1356 | db_printf("w" ); |
| 1357 | size = WORD; |
| 1358 | } else if (size == WORD) { |
| 1359 | db_printf("w" ); |
| 1360 | } else if (i_size == QUAD) { |
| 1361 | db_printf("q" ); |
| 1362 | size = QUAD; |
| 1363 | } else if (size == QUAD) { |
| 1364 | db_printf("q" ); |
| 1365 | } else { |
| 1366 | db_printf("l" ); |
| 1367 | } |
| 1368 | } |
| 1369 | } |
| 1370 | db_printf("\t" ); |
| 1371 | for (first = true; i_mode != 0; i_mode >>= 8, first = false) { |
| 1372 | char tbuf[24]; |
| 1373 | |
| 1374 | if (!first) |
| 1375 | db_printf("," ); |
| 1376 | |
| 1377 | switch (i_mode & 0xFF) { |
| 1378 | case E: |
| 1379 | db_print_address(seg, rex, size, &address); |
| 1380 | break; |
| 1381 | case Eind: |
| 1382 | db_printf("*" ); |
| 1383 | db_print_address(seg, rex, size, &address); |
| 1384 | break; |
| 1385 | case Ed: |
| 1386 | db_print_address(seg, rex, LONG, &address); |
| 1387 | break; |
| 1388 | case Ew: |
| 1389 | db_print_address(seg, rex, WORD, &address); |
| 1390 | break; |
| 1391 | case Eb: |
| 1392 | db_print_address(seg, rex, BYTE, &address); |
| 1393 | break; |
| 1394 | case R: { |
| 1395 | int ext = ((rex & REX_R) != 0); |
| 1396 | db_printf("%s" , db_reg[ext][size][f_reg(rex, regmodrm)]); |
| 1397 | break; |
| 1398 | } |
| 1399 | case Rw: { |
| 1400 | int ext = ((rex & REX_R) != 0); |
| 1401 | db_printf("%s" , db_reg[ext][WORD][f_reg(rex, regmodrm)]); |
| 1402 | break; |
| 1403 | } |
| 1404 | case Ri: { |
| 1405 | db_printf("%s" , db_reg[0][size][f_rm(rex, inst)]); |
| 1406 | break; |
| 1407 | } |
| 1408 | case S: |
| 1409 | db_printf("%s" , db_seg_reg[f_reg(rex, regmodrm)]); |
| 1410 | break; |
| 1411 | case Si: |
| 1412 | db_printf("%s" , db_seg_reg[f_reg(rex, inst)]); |
| 1413 | break; |
| 1414 | case A: |
| 1415 | db_printf("%s" , db_reg[0][size][0]); /* acc */ |
| 1416 | break; |
| 1417 | case BX: |
| 1418 | if (seg) |
| 1419 | db_printf("%s:" , seg); |
| 1420 | db_printf("(%s)" , short_addr ? "%ebx" : "%rbx" ); |
| 1421 | break; |
| 1422 | case CL: |
| 1423 | db_printf("%%cl" ); |
| 1424 | break; |
| 1425 | case DX: |
| 1426 | db_printf("%%dx" ); |
| 1427 | break; |
| 1428 | case SI: |
| 1429 | if (seg) |
| 1430 | db_printf("%s:" , seg); |
| 1431 | db_printf("(%s)" , short_addr ? "%esi" : "%rsi" ); |
| 1432 | break; |
| 1433 | case DI: |
| 1434 | db_printf("%%es:(%s)" , short_addr ? "%edi" : "%rdi" ); |
| 1435 | break; |
| 1436 | case CR: |
| 1437 | db_printf("%%cr%d" , f_reg(rex, regmodrm)); |
| 1438 | break; |
| 1439 | case DR: |
| 1440 | db_printf("%%dr%d" , f_reg(rex, regmodrm)); |
| 1441 | break; |
| 1442 | case TR: |
| 1443 | db_printf("%%tr%d" , f_reg(rex, regmodrm)); |
| 1444 | break; |
| 1445 | case Iq: |
| 1446 | if (size == QUAD) { |
| 1447 | get_value_inc(imm64, loc, 8, false); |
| 1448 | db_format_radix(tbuf, 24, imm64, true); |
| 1449 | db_printf("$%s" , tbuf); |
| 1450 | break; |
| 1451 | } |
| 1452 | case I: |
| 1453 | len = db_lengths[size]; |
| 1454 | get_value_inc(imm, loc, len, false);/* unsigned */ |
| 1455 | db_format_radix(tbuf, 24, (unsigned int)imm, true); |
| 1456 | db_printf("$%s" , tbuf); |
| 1457 | break; |
| 1458 | case Is: |
| 1459 | len = db_lengths[size]; |
| 1460 | get_value_inc(imm, loc, len, true); /* signed */ |
| 1461 | db_format_radix(tbuf, 24, imm, true); |
| 1462 | db_printf("$%s" , tbuf); |
| 1463 | break; |
| 1464 | case Ib: |
| 1465 | get_value_inc(imm, loc, 1, false); /* unsigned */ |
| 1466 | db_format_radix(tbuf, 24, (unsigned int)imm, true); |
| 1467 | db_printf("$%s" , tbuf); |
| 1468 | break; |
| 1469 | case Ibs: |
| 1470 | get_value_inc(imm, loc, 1, true); /* signed */ |
| 1471 | db_format_radix(tbuf, 24, imm, true); |
| 1472 | db_printf("$%s" , tbuf); |
| 1473 | break; |
| 1474 | case Iw: |
| 1475 | get_value_inc(imm, loc, 2, false); /* unsigned */ |
| 1476 | db_format_radix(tbuf, 24, (unsigned int)imm, true); |
| 1477 | db_printf("$%s" , tbuf); |
| 1478 | break; |
| 1479 | case Il: |
| 1480 | get_value_inc(imm, loc, 4, false); |
| 1481 | db_format_radix(tbuf, 24, (unsigned int)imm, true); |
| 1482 | db_printf("$%s" , tbuf); |
| 1483 | break; |
| 1484 | case O: /* Only move %eax to/from absolute address */ |
| 1485 | if (short_addr) |
| 1486 | get_value_inc(imm64, loc, 2, true); |
| 1487 | else |
| 1488 | get_value_inc(imm64, loc, 8, true); |
| 1489 | if (seg) { |
| 1490 | db_format_radix(tbuf, 24, imm64, true); |
| 1491 | db_printf("%s:%s" , seg, tbuf); |
| 1492 | } else |
| 1493 | db_printsym((db_addr_t)imm64, DB_STGY_ANY, |
| 1494 | db_printf); |
| 1495 | break; |
| 1496 | case Db: |
| 1497 | get_value_inc(displ, loc, 1, true); |
| 1498 | db_printsym((db_addr_t)(displ + loc), DB_STGY_XTRN, |
| 1499 | db_printf); |
| 1500 | break; |
| 1501 | case Dl: |
| 1502 | get_value_inc(displ, loc, 4, true); |
| 1503 | db_printsym((db_addr_t)(displ + loc), DB_STGY_XTRN, |
| 1504 | db_printf); |
| 1505 | break; |
| 1506 | case o1: |
| 1507 | db_printf("$1" ); |
| 1508 | break; |
| 1509 | case o3: |
| 1510 | db_printf("$3" ); |
| 1511 | break; |
| 1512 | case OS: |
| 1513 | get_value_inc(imm, loc, 4, false); /* offset */ |
| 1514 | db_format_radix(tbuf, 24, (unsigned int)imm, true); |
| 1515 | db_printf("$%s" , tbuf); |
| 1516 | get_value_inc(imm2, loc, 2, false); /* segment */ |
| 1517 | db_format_radix(tbuf, 24, (unsigned int)imm2, true); |
| 1518 | db_printf(",%s" , tbuf); |
| 1519 | break; |
| 1520 | } |
| 1521 | } |
| 1522 | |
| 1523 | db_printf("\n" ); |
| 1524 | return (loc); |
| 1525 | } |
| 1526 | |