2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
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.
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.
16 * Carnegie Mellon requests users of this software to return to
18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
19 * School of Computer Science
20 * Carnegie Mellon University
21 * Pittsburgh PA 15213-3890
23 * any improvements or extensions that they make and grant Carnegie the
24 * rights to redistribute these changes.
28 * Instruction disassembler.
31 /* <Wine specific wrappers> */
35 static int (*db_printf)(const char* format, ...)
37 __attribute__((format (printf,1,2)));
39 static int no_printf(const char* format, ...) {return 0;}
40 typedef DWORD_PTR db_addr_t;
41 typedef BOOL boolean_t;
43 static ULONG64 db_get_value(db_addr_t addr, int size, int is_signed)
48 if (size != 1 && size != 2 && size != 4 && size != 8)
50 db_printf("Illegal size specified\n");
52 else if (dbg_read_memory((void*)addr, buffer, size))
57 if (is_signed) result = (ULONG64)*(LONG64*)buffer;
58 else result = *(ULONG64*)buffer;
61 if (is_signed) result = (ULONG) *(LONG*)buffer;
62 else result = *(ULONG64*)buffer;
65 if (is_signed) result = (unsigned int) *(short int *)buffer;
66 else result = *(unsigned short int *)buffer;
69 if (is_signed) result = (unsigned int) *(char *)buffer;
70 else result = *(unsigned char *)buffer;
78 #define DB_STGY_XTRN 0
80 static void db_printsym(db_addr_t addr, unsigned unused)
82 if (db_printf != no_printf)
86 a.Mode = AddrModeFlat;
89 print_address(&a, FALSE);
93 /* </Wine specific wrappers> */
109 * REX prefix and bits
120 #define E 1 /* general effective address */
121 #define Eind 2 /* indirect address (jump, call) */
122 #define Ew 3 /* address, word size */
123 #define Eb 4 /* address, byte size */
124 #define R 5 /* register, in 'reg' field */
125 #define Rw 6 /* word register, in 'reg' field */
126 #define Ri 7 /* register in instruction */
127 #define S 8 /* segment reg, in 'reg' field */
128 #define Si 9 /* segment reg, in instruction */
129 #define A 10 /* accumulator */
130 #define BX 11 /* (bx) */
131 #define CL 12 /* cl, for shifts */
132 #define DX 13 /* dx, for IO */
133 #define SI 14 /* si */
134 #define DI 15 /* di */
135 #define CR 16 /* control register */
136 #define DR 17 /* debug register */
137 #define TR 18 /* test register */
138 #define I 19 /* immediate, unsigned */
139 #define Is 20 /* immediate, signed */
140 #define Ib 21 /* byte immediate, unsigned */
141 #define Ibs 22 /* byte immediate, signed */
142 #define Iw 23 /* word immediate, unsigned */
143 #define Ilq 24 /* long/quad immediate, unsigned */
144 #define O 25 /* direct address */
145 #define Db 26 /* byte displacement from EIP */
146 #define Dl 27 /* long displacement from EIP */
147 #define o1 28 /* constant 1 */
148 #define o3 29 /* constant 3 */
149 #define OS 30 /* immediate offset/segment */
150 #define ST 31 /* FP stack top */
151 #define STI 32 /* FP stack */
152 #define X 33 /* extended FP op */
153 #define XA 34 /* for 'fstcw %ax' */
154 #define El 35 /* address, long/quad size */
155 #define Ril 36 /* long register in instruction */
156 #define Iba 37 /* byte immediate, don't print if 0xa */
157 #define EL 38 /* address, explicitly long size */
160 const char * i_name; /* name */
161 short i_has_modrm; /* has regmodrm byte */
162 short i_size; /* operand size */
163 int i_mode; /* addressing modes */
164 const void * i_extra; /* pointer to extra opcode table */
168 #define op2(x,y) ((x)|((y)<<8))
169 #define op3(x,y,z) ((x)|((y)<<8)|((z)<<16))
172 const char * f_name; /* name for memory instruction */
173 int f_size; /* size for memory instruction */
174 int f_rrmode; /* mode for rr instruction */
175 const void * f_rrname; /* name for rr instruction
176 (or pointer to table) */
179 static const char * const db_Grp6[] = {
190 static const char * const db_Grp7[] = {
201 static const char * const db_Grp8[] = {
212 static const char * const db_Grp9[] = {
223 static const char * const db_Grp15[] = {
234 static const char * const db_Grp15b[] = {
245 static const struct inst db_inst_0f0x[] = {
246 /*00*/ { "", TRUE, NONE, op1(Ew), db_Grp6 },
247 /*01*/ { "", TRUE, NONE, op1(Ew), db_Grp7 },
248 /*02*/ { "lar", TRUE, LONG, op2(E,R), 0 },
249 /*03*/ { "lsl", TRUE, LONG, op2(E,R), 0 },
250 /*04*/ { "", FALSE, NONE, 0, 0 },
251 /*05*/ { "syscall",FALSE,NONE, 0, 0 },
252 /*06*/ { "clts", FALSE, NONE, 0, 0 },
253 /*07*/ { "sysret",FALSE, NONE, 0, 0 },
255 /*08*/ { "invd", FALSE, NONE, 0, 0 },
256 /*09*/ { "wbinvd",FALSE, NONE, 0, 0 },
257 /*0a*/ { "", FALSE, NONE, 0, 0 },
258 /*0b*/ { "", FALSE, NONE, 0, 0 },
259 /*0c*/ { "", FALSE, NONE, 0, 0 },
260 /*0d*/ { "", FALSE, NONE, 0, 0 },
261 /*0e*/ { "", FALSE, NONE, 0, 0 },
262 /*0f*/ { "", FALSE, NONE, 0, 0 },
265 static const struct inst db_inst_0f2x[] = {
266 /*20*/ { "mov", TRUE, LONG, op2(CR,El), 0 },
267 /*21*/ { "mov", TRUE, LONG, op2(DR,El), 0 },
268 /*22*/ { "mov", TRUE, LONG, op2(El,CR), 0 },
269 /*23*/ { "mov", TRUE, LONG, op2(El,DR), 0 },
270 /*24*/ { "mov", TRUE, LONG, op2(TR,El), 0 },
271 /*25*/ { "", FALSE, NONE, 0, 0 },
272 /*26*/ { "mov", TRUE, LONG, op2(El,TR), 0 },
273 /*27*/ { "", FALSE, NONE, 0, 0 },
275 /*28*/ { "", FALSE, NONE, 0, 0 },
276 /*29*/ { "", FALSE, NONE, 0, 0 },
277 /*2a*/ { "", FALSE, NONE, 0, 0 },
278 /*2b*/ { "", FALSE, NONE, 0, 0 },
279 /*2c*/ { "", FALSE, NONE, 0, 0 },
280 /*2d*/ { "", FALSE, NONE, 0, 0 },
281 /*2e*/ { "", FALSE, NONE, 0, 0 },
282 /*2f*/ { "", FALSE, NONE, 0, 0 },
285 static const struct inst db_inst_0f3x[] = {
286 /*30*/ { "wrmsr", FALSE, NONE, 0, 0 },
287 /*31*/ { "rdtsc", FALSE, NONE, 0, 0 },
288 /*32*/ { "rdmsr", FALSE, NONE, 0, 0 },
289 /*33*/ { "rdpmc", FALSE, NONE, 0, 0 },
290 /*34*/ { "sysenter",FALSE,NONE, 0, 0 },
291 /*35*/ { "sysexit",FALSE,NONE, 0, 0 },
292 /*36*/ { "", FALSE, NONE, 0, 0 },
293 /*37*/ { "getsec",FALSE, NONE, 0, 0 },
295 /*38*/ { "", FALSE, NONE, 0, 0 },
296 /*39*/ { "", FALSE, NONE, 0, 0 },
297 /*3a*/ { "", FALSE, NONE, 0, 0 },
298 /*3b*/ { "", FALSE, NONE, 0, 0 },
299 /*3c*/ { "", FALSE, NONE, 0, 0 },
300 /*3d*/ { "", FALSE, NONE, 0, 0 },
301 /*3e*/ { "", FALSE, NONE, 0, 0 },
302 /*3f*/ { "", FALSE, NONE, 0, 0 },
305 static const struct inst db_inst_0f4x[] = {
306 /*40*/ { "cmovo", TRUE, NONE, op2(E, R), 0 },
307 /*41*/ { "cmovno", TRUE, NONE, op2(E, R), 0 },
308 /*42*/ { "cmovb", TRUE, NONE, op2(E, R), 0 },
309 /*43*/ { "cmovnb", TRUE, NONE, op2(E, R), 0 },
310 /*44*/ { "cmovz", TRUE, NONE, op2(E, R), 0 },
311 /*45*/ { "cmovnz", TRUE, NONE, op2(E, R), 0 },
312 /*46*/ { "cmovbe", TRUE, NONE, op2(E, R), 0 },
313 /*47*/ { "cmovnbe",TRUE, NONE, op2(E, R), 0 },
315 /*48*/ { "cmovs", TRUE, NONE, op2(E, R), 0 },
316 /*49*/ { "cmovns", TRUE, NONE, op2(E, R), 0 },
317 /*4a*/ { "cmovp", TRUE, NONE, op2(E, R), 0 },
318 /*4b*/ { "cmovnp", TRUE, NONE, op2(E, R), 0 },
319 /*4c*/ { "cmovl", TRUE, NONE, op2(E, R), 0 },
320 /*4d*/ { "cmovnl", TRUE, NONE, op2(E, R), 0 },
321 /*4e*/ { "cmovle", TRUE, NONE, op2(E, R), 0 },
322 /*4f*/ { "cmovnle",TRUE, NONE, op2(E, R), 0 },
325 static const struct inst db_inst_0f8x[] = {
326 /*80*/ { "jo", FALSE, NONE, op1(Dl), 0 },
327 /*81*/ { "jno", FALSE, NONE, op1(Dl), 0 },
328 /*82*/ { "jb", FALSE, NONE, op1(Dl), 0 },
329 /*83*/ { "jnb", FALSE, NONE, op1(Dl), 0 },
330 /*84*/ { "jz", FALSE, NONE, op1(Dl), 0 },
331 /*85*/ { "jnz", FALSE, NONE, op1(Dl), 0 },
332 /*86*/ { "jbe", FALSE, NONE, op1(Dl), 0 },
333 /*87*/ { "jnbe", FALSE, NONE, op1(Dl), 0 },
335 /*88*/ { "js", FALSE, NONE, op1(Dl), 0 },
336 /*89*/ { "jns", FALSE, NONE, op1(Dl), 0 },
337 /*8a*/ { "jp", FALSE, NONE, op1(Dl), 0 },
338 /*8b*/ { "jnp", FALSE, NONE, op1(Dl), 0 },
339 /*8c*/ { "jl", FALSE, NONE, op1(Dl), 0 },
340 /*8d*/ { "jnl", FALSE, NONE, op1(Dl), 0 },
341 /*8e*/ { "jle", FALSE, NONE, op1(Dl), 0 },
342 /*8f*/ { "jnle", FALSE, NONE, op1(Dl), 0 },
345 static const struct inst db_inst_0f9x[] = {
346 /*90*/ { "seto", TRUE, NONE, op1(Eb), 0 },
347 /*91*/ { "setno", TRUE, NONE, op1(Eb), 0 },
348 /*92*/ { "setb", TRUE, NONE, op1(Eb), 0 },
349 /*93*/ { "setnb", TRUE, NONE, op1(Eb), 0 },
350 /*94*/ { "setz", TRUE, NONE, op1(Eb), 0 },
351 /*95*/ { "setnz", TRUE, NONE, op1(Eb), 0 },
352 /*96*/ { "setbe", TRUE, NONE, op1(Eb), 0 },
353 /*97*/ { "setnbe",TRUE, NONE, op1(Eb), 0 },
355 /*98*/ { "sets", TRUE, NONE, op1(Eb), 0 },
356 /*99*/ { "setns", TRUE, NONE, op1(Eb), 0 },
357 /*9a*/ { "setp", TRUE, NONE, op1(Eb), 0 },
358 /*9b*/ { "setnp", TRUE, NONE, op1(Eb), 0 },
359 /*9c*/ { "setl", TRUE, NONE, op1(Eb), 0 },
360 /*9d*/ { "setnl", TRUE, NONE, op1(Eb), 0 },
361 /*9e*/ { "setle", TRUE, NONE, op1(Eb), 0 },
362 /*9f*/ { "setnle",TRUE, NONE, op1(Eb), 0 },
365 static const struct inst db_inst_0fax[] = {
366 /*a0*/ { "push", FALSE, NONE, op1(Si), 0 },
367 /*a1*/ { "pop", FALSE, NONE, op1(Si), 0 },
368 /*a2*/ { "cpuid", FALSE, NONE, 0, 0 },
369 /*a3*/ { "bt", TRUE, LONG, op2(R,E), 0 },
370 /*a4*/ { "shld", TRUE, LONG, op3(Ib,R,E), 0 },
371 /*a5*/ { "shld", TRUE, LONG, op3(CL,R,E), 0 },
372 /*a6*/ { "", FALSE, NONE, 0, 0 },
373 /*a7*/ { "", FALSE, NONE, 0, 0 },
375 /*a8*/ { "push", FALSE, NONE, op1(Si), 0 },
376 /*a9*/ { "pop", FALSE, NONE, op1(Si), 0 },
377 /*aa*/ { "rsm", FALSE, NONE, 0, 0 },
378 /*ab*/ { "bts", TRUE, LONG, op2(R,E), 0 },
379 /*ac*/ { "shrd", TRUE, LONG, op3(Ib,R,E), 0 },
380 /*ad*/ { "shrd", TRUE, LONG, op3(CL,R,E), 0 },
381 /*ae*/ { "", TRUE, LONG, op1(E), db_Grp15 },
382 /*af*/ { "imul", TRUE, LONG, op2(E,R), 0 },
385 static const struct inst db_inst_0fbx[] = {
386 /*b0*/ { "cmpxchg",TRUE, BYTE, op2(R, E), 0 },
387 /*b0*/ { "cmpxchg",TRUE, LONG, op2(R, E), 0 },
388 /*b2*/ { "lss", TRUE, LONG, op2(E, R), 0 },
389 /*b3*/ { "btr", TRUE, LONG, op2(R, E), 0 },
390 /*b4*/ { "lfs", TRUE, LONG, op2(E, R), 0 },
391 /*b5*/ { "lgs", TRUE, LONG, op2(E, R), 0 },
392 /*b6*/ { "movzb", TRUE, LONG, op2(Eb, R), 0 },
393 /*b7*/ { "movzw", TRUE, LONG, op2(Ew, R), 0 },
395 /*b8*/ { "", FALSE, NONE, 0, 0 },
396 /*b9*/ { "", FALSE, NONE, 0, 0 },
397 /*ba*/ { "", TRUE, LONG, op2(Ib, E), db_Grp8 },
398 /*bb*/ { "btc", TRUE, LONG, op2(R, E), 0 },
399 /*bc*/ { "bsf", TRUE, LONG, op2(E, R), 0 },
400 /*bd*/ { "bsr", TRUE, LONG, op2(E, R), 0 },
401 /*be*/ { "movsb", TRUE, LONG, op2(Eb, R), 0 },
402 /*bf*/ { "movsw", TRUE, LONG, op2(Ew, R), 0 },
405 static const struct inst db_inst_0fcx[] = {
406 /*c0*/ { "xadd", TRUE, BYTE, op2(R, E), 0 },
407 /*c1*/ { "xadd", TRUE, LONG, op2(R, E), 0 },
408 /*c2*/ { "", FALSE, NONE, 0, 0 },
409 /*c3*/ { "", FALSE, NONE, 0, 0 },
410 /*c4*/ { "", FALSE, NONE, 0, 0 },
411 /*c5*/ { "", FALSE, NONE, 0, 0 },
412 /*c6*/ { "", FALSE, NONE, 0, 0 },
413 /*c7*/ { "", TRUE, NONE, op1(E), db_Grp9 },
414 /*c8*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
415 /*c9*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
416 /*ca*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
417 /*cb*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
418 /*cc*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
419 /*cd*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
420 /*ce*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
421 /*cf*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
424 static const struct inst * const db_inst_0f[] = {
443 static const char * const db_Esc92[] = {
444 "fnop", "", "", "", "", "", "", ""
446 static const char * const db_Esc94[] = {
447 "fchs", "fabs", "", "", "ftst", "fxam", "", ""
449 static const char * const db_Esc95[] = {
450 "fld1", "fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz",""
452 static const char * const db_Esc96[] = {
453 "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp",
456 static const char * const db_Esc97[] = {
457 "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos"
460 static const char * const db_Esca5[] = {
461 "", "fucompp","", "", "", "", "", ""
464 static const char * const db_Escb4[] = {
465 "fneni","fndisi", "fnclex","fninit","fsetpm", "", "", ""
468 static const char * const db_Esce3[] = {
469 "", "fcompp","", "", "", "", "", ""
472 static const char * const db_Escf4[] = {
473 "fnstsw","", "", "", "", "", "", ""
476 static const struct finst db_Esc8[] = {
477 /*0*/ { "fadd", SNGL, op2(STI,ST), 0 },
478 /*1*/ { "fmul", SNGL, op2(STI,ST), 0 },
479 /*2*/ { "fcom", SNGL, op2(STI,ST), 0 },
480 /*3*/ { "fcomp", SNGL, op2(STI,ST), 0 },
481 /*4*/ { "fsub", SNGL, op2(STI,ST), 0 },
482 /*5*/ { "fsubr", SNGL, op2(STI,ST), 0 },
483 /*6*/ { "fdiv", SNGL, op2(STI,ST), 0 },
484 /*7*/ { "fdivr", SNGL, op2(STI,ST), 0 },
487 static const struct finst db_Esc9[] = {
488 /*0*/ { "fld", SNGL, op1(STI), 0 },
489 /*1*/ { "", NONE, op1(STI), "fxch" },
490 /*2*/ { "fst", SNGL, op1(X), db_Esc92 },
491 /*3*/ { "fstp", SNGL, 0, 0 },
492 /*4*/ { "fldenv", NONE, op1(X), db_Esc94 },
493 /*5*/ { "fldcw", NONE, op1(X), db_Esc95 },
494 /*6*/ { "fnstenv",NONE, op1(X), db_Esc96 },
495 /*7*/ { "fnstcw", NONE, op1(X), db_Esc97 },
498 static const struct finst db_Esca[] = {
499 /*0*/ { "fiadd", LONG, 0, 0 },
500 /*1*/ { "fimul", LONG, 0, 0 },
501 /*2*/ { "ficom", LONG, 0, 0 },
502 /*3*/ { "ficomp", LONG, 0, 0 },
503 /*4*/ { "fisub", LONG, 0, 0 },
504 /*5*/ { "fisubr", LONG, op1(X), db_Esca5 },
505 /*6*/ { "fidiv", LONG, 0, 0 },
506 /*7*/ { "fidivr", LONG, 0, 0 }
509 static const struct finst db_Escb[] = {
510 /*0*/ { "fild", LONG, 0, 0 },
511 /*1*/ { "", NONE, 0, 0 },
512 /*2*/ { "fist", LONG, 0, 0 },
513 /*3*/ { "fistp", LONG, 0, 0 },
514 /*4*/ { "", WORD, op1(X), db_Escb4 },
515 /*5*/ { "fld", EXTR, 0, 0 },
516 /*6*/ { "", WORD, 0, 0 },
517 /*7*/ { "fstp", EXTR, 0, 0 },
520 static const struct finst db_Escc[] = {
521 /*0*/ { "fadd", DBLR, op2(ST,STI), 0 },
522 /*1*/ { "fmul", DBLR, op2(ST,STI), 0 },
523 /*2*/ { "fcom", DBLR, 0, 0 },
524 /*3*/ { "fcomp", DBLR, 0, 0 },
525 /*4*/ { "fsub", DBLR, op2(ST,STI), "fsubr" },
526 /*5*/ { "fsubr", DBLR, op2(ST,STI), "fsub" },
527 /*6*/ { "fdiv", DBLR, op2(ST,STI), "fdivr" },
528 /*7*/ { "fdivr", DBLR, op2(ST,STI), "fdiv" },
531 static const struct finst db_Escd[] = {
532 /*0*/ { "fld", DBLR, op1(STI), "ffree" },
533 /*1*/ { "", NONE, 0, 0 },
534 /*2*/ { "fst", DBLR, op1(STI), 0 },
535 /*3*/ { "fstp", DBLR, op1(STI), 0 },
536 /*4*/ { "frstor", NONE, op1(STI), "fucom" },
537 /*5*/ { "", NONE, op1(STI), "fucomp" },
538 /*6*/ { "fnsave", NONE, 0, 0 },
539 /*7*/ { "fnstsw", NONE, 0, 0 },
542 static const struct finst db_Esce[] = {
543 /*0*/ { "fiadd", WORD, op2(ST,STI), "faddp" },
544 /*1*/ { "fimul", WORD, op2(ST,STI), "fmulp" },
545 /*2*/ { "ficom", WORD, 0, 0 },
546 /*3*/ { "ficomp", WORD, op1(X), db_Esce3 },
547 /*4*/ { "fisub", WORD, op2(ST,STI), "fsubrp" },
548 /*5*/ { "fisubr", WORD, op2(ST,STI), "fsubp" },
549 /*6*/ { "fidiv", WORD, op2(ST,STI), "fdivrp" },
550 /*7*/ { "fidivr", WORD, op2(ST,STI), "fdivp" },
553 static const struct finst db_Escf[] = {
554 /*0*/ { "fild", WORD, 0, 0 },
555 /*1*/ { "", NONE, 0, 0 },
556 /*2*/ { "fist", WORD, 0, 0 },
557 /*3*/ { "fistp", WORD, 0, 0 },
558 /*4*/ { "fbld", NONE, op1(XA), db_Escf4 },
559 /*5*/ { "fild", QUAD, 0, 0 },
560 /*6*/ { "fbstp", NONE, 0, 0 },
561 /*7*/ { "fistp", QUAD, 0, 0 },
564 static const struct finst * const db_Esc_inst[] = {
565 db_Esc8, db_Esc9, db_Esca, db_Escb,
566 db_Escc, db_Escd, db_Esce, db_Escf
569 static const char * const db_Grp1[] = {
580 static const char * const db_Grp2[] = {
591 static const struct inst db_Grp3[] = {
592 { "test", TRUE, NONE, op2(I,E), 0 },
593 { "test", TRUE, NONE, op2(I,E), 0 },
594 { "not", TRUE, NONE, op1(E), 0 },
595 { "neg", TRUE, NONE, op1(E), 0 },
596 { "mul", TRUE, NONE, op2(E,A), 0 },
597 { "imul", TRUE, NONE, op2(E,A), 0 },
598 { "div", TRUE, NONE, op2(E,A), 0 },
599 { "idiv", TRUE, NONE, op2(E,A), 0 },
602 static const struct inst db_Grp4[] = {
603 { "inc", TRUE, BYTE, op1(E), 0 },
604 { "dec", TRUE, BYTE, op1(E), 0 },
605 { "", TRUE, NONE, 0, 0 },
606 { "", TRUE, NONE, 0, 0 },
607 { "", TRUE, NONE, 0, 0 },
608 { "", TRUE, NONE, 0, 0 },
609 { "", TRUE, NONE, 0, 0 },
610 { "", TRUE, NONE, 0, 0 }
613 static const struct inst db_Grp5[] = {
614 { "inc", TRUE, LONG, op1(E), 0 },
615 { "dec", TRUE, LONG, op1(E), 0 },
616 { "call", TRUE, LONG, op1(Eind),0 },
617 { "lcall", TRUE, LONG, op1(Eind),0 },
618 { "jmp", TRUE, LONG, op1(Eind),0 },
619 { "ljmp", TRUE, LONG, op1(Eind),0 },
620 { "push", TRUE, LONG, op1(E), 0 },
621 { "", TRUE, NONE, 0, 0 }
624 static const struct inst db_inst_table[256] = {
625 /*00*/ { "add", TRUE, BYTE, op2(R, E), 0 },
626 /*01*/ { "add", TRUE, LONG, op2(R, E), 0 },
627 /*02*/ { "add", TRUE, BYTE, op2(E, R), 0 },
628 /*03*/ { "add", TRUE, LONG, op2(E, R), 0 },
629 /*04*/ { "add", FALSE, BYTE, op2(I, A), 0 },
630 /*05*/ { "add", FALSE, LONG, op2(Is, A), 0 },
631 /*06*/ { "push", FALSE, NONE, op1(Si), 0 },
632 /*07*/ { "pop", FALSE, NONE, op1(Si), 0 },
634 /*08*/ { "or", TRUE, BYTE, op2(R, E), 0 },
635 /*09*/ { "or", TRUE, LONG, op2(R, E), 0 },
636 /*0a*/ { "or", TRUE, BYTE, op2(E, R), 0 },
637 /*0b*/ { "or", TRUE, LONG, op2(E, R), 0 },
638 /*0c*/ { "or", FALSE, BYTE, op2(I, A), 0 },
639 /*0d*/ { "or", FALSE, LONG, op2(I, A), 0 },
640 /*0e*/ { "push", FALSE, NONE, op1(Si), 0 },
641 /*0f*/ { "", FALSE, NONE, 0, 0 },
643 /*10*/ { "adc", TRUE, BYTE, op2(R, E), 0 },
644 /*11*/ { "adc", TRUE, LONG, op2(R, E), 0 },
645 /*12*/ { "adc", TRUE, BYTE, op2(E, R), 0 },
646 /*13*/ { "adc", TRUE, LONG, op2(E, R), 0 },
647 /*14*/ { "adc", FALSE, BYTE, op2(I, A), 0 },
648 /*15*/ { "adc", FALSE, LONG, op2(Is, A), 0 },
649 /*16*/ { "push", FALSE, NONE, op1(Si), 0 },
650 /*17*/ { "pop", FALSE, NONE, op1(Si), 0 },
652 /*18*/ { "sbb", TRUE, BYTE, op2(R, E), 0 },
653 /*19*/ { "sbb", TRUE, LONG, op2(R, E), 0 },
654 /*1a*/ { "sbb", TRUE, BYTE, op2(E, R), 0 },
655 /*1b*/ { "sbb", TRUE, LONG, op2(E, R), 0 },
656 /*1c*/ { "sbb", FALSE, BYTE, op2(I, A), 0 },
657 /*1d*/ { "sbb", FALSE, LONG, op2(Is, A), 0 },
658 /*1e*/ { "push", FALSE, NONE, op1(Si), 0 },
659 /*1f*/ { "pop", FALSE, NONE, op1(Si), 0 },
661 /*20*/ { "and", TRUE, BYTE, op2(R, E), 0 },
662 /*21*/ { "and", TRUE, LONG, op2(R, E), 0 },
663 /*22*/ { "and", TRUE, BYTE, op2(E, R), 0 },
664 /*23*/ { "and", TRUE, LONG, op2(E, R), 0 },
665 /*24*/ { "and", FALSE, BYTE, op2(I, A), 0 },
666 /*25*/ { "and", FALSE, LONG, op2(I, A), 0 },
667 /*26*/ { "", FALSE, NONE, 0, 0 },
668 /*27*/ { "daa", FALSE, NONE, 0, 0 },
670 /*28*/ { "sub", TRUE, BYTE, op2(R, E), 0 },
671 /*29*/ { "sub", TRUE, LONG, op2(R, E), 0 },
672 /*2a*/ { "sub", TRUE, BYTE, op2(E, R), 0 },
673 /*2b*/ { "sub", TRUE, LONG, op2(E, R), 0 },
674 /*2c*/ { "sub", FALSE, BYTE, op2(I, A), 0 },
675 /*2d*/ { "sub", FALSE, LONG, op2(Is, A), 0 },
676 /*2e*/ { "", FALSE, NONE, 0, 0 },
677 /*2f*/ { "das", FALSE, NONE, 0, 0 },
679 /*30*/ { "xor", TRUE, BYTE, op2(R, E), 0 },
680 /*31*/ { "xor", TRUE, LONG, op2(R, E), 0 },
681 /*32*/ { "xor", TRUE, BYTE, op2(E, R), 0 },
682 /*33*/ { "xor", TRUE, LONG, op2(E, R), 0 },
683 /*34*/ { "xor", FALSE, BYTE, op2(I, A), 0 },
684 /*35*/ { "xor", FALSE, LONG, op2(I, A), 0 },
685 /*36*/ { "", FALSE, NONE, 0, 0 },
686 /*37*/ { "aaa", FALSE, NONE, 0, 0 },
688 /*38*/ { "cmp", TRUE, BYTE, op2(R, E), 0 },
689 /*39*/ { "cmp", TRUE, LONG, op2(R, E), 0 },
690 /*3a*/ { "cmp", TRUE, BYTE, op2(E, R), 0 },
691 /*3b*/ { "cmp", TRUE, LONG, op2(E, R), 0 },
692 /*3c*/ { "cmp", FALSE, BYTE, op2(I, A), 0 },
693 /*3d*/ { "cmp", FALSE, LONG, op2(Is, A), 0 },
694 /*3e*/ { "", FALSE, NONE, 0, 0 },
695 /*3f*/ { "aas", FALSE, NONE, 0, 0 },
697 /*40*/ { "rex", FALSE, NONE, 0, 0 },
698 /*41*/ { "rex.b", FALSE, NONE, 0, 0 },
699 /*42*/ { "rex.x", FALSE, NONE, 0, 0 },
700 /*43*/ { "rex.xb", FALSE, NONE, 0, 0 },
701 /*44*/ { "rex.r", FALSE, NONE, 0, 0 },
702 /*45*/ { "rex.rb", FALSE, NONE, 0, 0 },
703 /*46*/ { "rex.rx", FALSE, NONE, 0, 0 },
704 /*47*/ { "rex.rxb", FALSE, NONE, 0, 0 },
706 /*48*/ { "rex.w", FALSE, NONE, 0, 0 },
707 /*49*/ { "rex.wb", FALSE, NONE, 0, 0 },
708 /*4a*/ { "rex.wx", FALSE, NONE, 0, 0 },
709 /*4b*/ { "rex.wxb", FALSE, NONE, 0, 0 },
710 /*4c*/ { "rex.wr", FALSE, NONE, 0, 0 },
711 /*4d*/ { "rex.wrb", FALSE, NONE, 0, 0 },
712 /*4e*/ { "rex.wrx", FALSE, NONE, 0, 0 },
713 /*4f*/ { "rex.wrxb", FALSE, NONE, 0, 0 },
715 /*50*/ { "push", FALSE, LONG, op1(Ri), 0 },
716 /*51*/ { "push", FALSE, LONG, op1(Ri), 0 },
717 /*52*/ { "push", FALSE, LONG, op1(Ri), 0 },
718 /*53*/ { "push", FALSE, LONG, op1(Ri), 0 },
719 /*54*/ { "push", FALSE, LONG, op1(Ri), 0 },
720 /*55*/ { "push", FALSE, LONG, op1(Ri), 0 },
721 /*56*/ { "push", FALSE, LONG, op1(Ri), 0 },
722 /*57*/ { "push", FALSE, LONG, op1(Ri), 0 },
724 /*58*/ { "pop", FALSE, LONG, op1(Ri), 0 },
725 /*59*/ { "pop", FALSE, LONG, op1(Ri), 0 },
726 /*5a*/ { "pop", FALSE, LONG, op1(Ri), 0 },
727 /*5b*/ { "pop", FALSE, LONG, op1(Ri), 0 },
728 /*5c*/ { "pop", FALSE, LONG, op1(Ri), 0 },
729 /*5d*/ { "pop", FALSE, LONG, op1(Ri), 0 },
730 /*5e*/ { "pop", FALSE, LONG, op1(Ri), 0 },
731 /*5f*/ { "pop", FALSE, LONG, op1(Ri), 0 },
733 /*60*/ { "pusha", FALSE, LONG, 0, 0 },
734 /*61*/ { "popa", FALSE, LONG, 0, 0 },
735 /*62*/ { "bound", TRUE, LONG, op2(E, R), 0 },
736 /*63*/ { "movslq", TRUE, NONE, op2(EL,R), 0 },
738 /*64*/ { "", FALSE, NONE, 0, 0 },
739 /*65*/ { "", FALSE, NONE, 0, 0 },
740 /*66*/ { "", FALSE, NONE, 0, 0 },
741 /*67*/ { "", FALSE, NONE, 0, 0 },
743 /*68*/ { "push", FALSE, LONG, op1(I), 0 },
744 /*69*/ { "imul", TRUE, LONG, op3(I,E,R), 0 },
745 /*6a*/ { "push", FALSE, LONG, op1(Ibs), 0 },
746 /*6b*/ { "imul", TRUE, LONG, op3(Ibs,E,R),0 },
747 /*6c*/ { "ins", FALSE, BYTE, op2(DX, DI), 0 },
748 /*6d*/ { "ins", FALSE, LONG, op2(DX, DI), 0 },
749 /*6e*/ { "outs", FALSE, BYTE, op2(SI, DX), 0 },
750 /*6f*/ { "outs", FALSE, LONG, op2(SI, DX), 0 },
752 /*70*/ { "jo", FALSE, NONE, op1(Db), 0 },
753 /*71*/ { "jno", FALSE, NONE, op1(Db), 0 },
754 /*72*/ { "jb", FALSE, NONE, op1(Db), 0 },
755 /*73*/ { "jnb", FALSE, NONE, op1(Db), 0 },
756 /*74*/ { "jz", FALSE, NONE, op1(Db), 0 },
757 /*75*/ { "jnz", FALSE, NONE, op1(Db), 0 },
758 /*76*/ { "jbe", FALSE, NONE, op1(Db), 0 },
759 /*77*/ { "jnbe", FALSE, NONE, op1(Db), 0 },
761 /*78*/ { "js", FALSE, NONE, op1(Db), 0 },
762 /*79*/ { "jns", FALSE, NONE, op1(Db), 0 },
763 /*7a*/ { "jp", FALSE, NONE, op1(Db), 0 },
764 /*7b*/ { "jnp", FALSE, NONE, op1(Db), 0 },
765 /*7c*/ { "jl", FALSE, NONE, op1(Db), 0 },
766 /*7d*/ { "jnl", FALSE, NONE, op1(Db), 0 },
767 /*7e*/ { "jle", FALSE, NONE, op1(Db), 0 },
768 /*7f*/ { "jnle", FALSE, NONE, op1(Db), 0 },
770 /*80*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 },
771 /*81*/ { "", TRUE, LONG, op2(I, E), db_Grp1 },
772 /*82*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 },
773 /*83*/ { "", TRUE, LONG, op2(Ibs,E), db_Grp1 },
774 /*84*/ { "test", TRUE, BYTE, op2(R, E), 0 },
775 /*85*/ { "test", TRUE, LONG, op2(R, E), 0 },
776 /*86*/ { "xchg", TRUE, BYTE, op2(R, E), 0 },
777 /*87*/ { "xchg", TRUE, LONG, op2(R, E), 0 },
779 /*88*/ { "mov", TRUE, BYTE, op2(R, E), 0 },
780 /*89*/ { "mov", TRUE, LONG, op2(R, E), 0 },
781 /*8a*/ { "mov", TRUE, BYTE, op2(E, R), 0 },
782 /*8b*/ { "mov", TRUE, LONG, op2(E, R), 0 },
783 /*8c*/ { "mov", TRUE, NONE, op2(S, Ew), 0 },
784 /*8d*/ { "lea", TRUE, LONG, op2(E, R), 0 },
785 /*8e*/ { "mov", TRUE, NONE, op2(Ew, S), 0 },
786 /*8f*/ { "pop", TRUE, LONG, op1(E), 0 },
788 /*90*/ { "nop", FALSE, NONE, 0, 0 },
789 /*91*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
790 /*92*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
791 /*93*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
792 /*94*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
793 /*95*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
794 /*96*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
795 /*97*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
797 /*98*/ { "cbw", FALSE, SDEP, 0, "cwde" }, /* cbw/cwde */
798 /*99*/ { "cwd", FALSE, SDEP, 0, "cdq" }, /* cwd/cdq */
799 /*9a*/ { "lcall", FALSE, NONE, op1(OS), 0 },
800 /*9b*/ { "wait", FALSE, NONE, 0, 0 },
801 /*9c*/ { "pushf", FALSE, LONG, 0, 0 },
802 /*9d*/ { "popf", FALSE, LONG, 0, 0 },
803 /*9e*/ { "sahf", FALSE, NONE, 0, 0 },
804 /*9f*/ { "lahf", FALSE, NONE, 0, 0 },
806 /*a0*/ { "mov", FALSE, BYTE, op2(O, A), 0 },
807 /*a1*/ { "mov", FALSE, LONG, op2(O, A), 0 },
808 /*a2*/ { "mov", FALSE, BYTE, op2(A, O), 0 },
809 /*a3*/ { "mov", FALSE, LONG, op2(A, O), 0 },
810 /*a4*/ { "movs", FALSE, BYTE, op2(SI,DI), 0 },
811 /*a5*/ { "movs", FALSE, LONG, op2(SI,DI), 0 },
812 /*a6*/ { "cmps", FALSE, BYTE, op2(SI,DI), 0 },
813 /*a7*/ { "cmps", FALSE, LONG, op2(SI,DI), 0 },
815 /*a8*/ { "test", FALSE, BYTE, op2(I, A), 0 },
816 /*a9*/ { "test", FALSE, LONG, op2(I, A), 0 },
817 /*aa*/ { "stos", FALSE, BYTE, op1(DI), 0 },
818 /*ab*/ { "stos", FALSE, LONG, op1(DI), 0 },
819 /*ac*/ { "lods", FALSE, BYTE, op1(SI), 0 },
820 /*ad*/ { "lods", FALSE, LONG, op1(SI), 0 },
821 /*ae*/ { "scas", FALSE, BYTE, op1(SI), 0 },
822 /*af*/ { "scas", FALSE, LONG, op1(SI), 0 },
824 /*b0*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
825 /*b1*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
826 /*b2*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
827 /*b3*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
828 /*b4*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
829 /*b5*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
830 /*b6*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
831 /*b7*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
833 /*b8*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
834 /*b9*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
835 /*ba*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
836 /*bb*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
837 /*bc*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
838 /*bd*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
839 /*be*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
840 /*bf*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
842 /*c0*/ { "", TRUE, BYTE, op2(Ib, E), db_Grp2 },
843 /*c1*/ { "", TRUE, LONG, op2(Ib, E), db_Grp2 },
844 /*c2*/ { "ret", FALSE, NONE, op1(Iw), 0 },
845 /*c3*/ { "ret", FALSE, NONE, 0, 0 },
846 /*c4*/ { "les", TRUE, LONG, op2(E, R), 0 },
847 /*c5*/ { "lds", TRUE, LONG, op2(E, R), 0 },
848 /*c6*/ { "mov", TRUE, BYTE, op2(I, E), 0 },
849 /*c7*/ { "mov", TRUE, LONG, op2(I, E), 0 },
851 /*c8*/ { "enter", FALSE, NONE, op2(Iw, Ib), 0 },
852 /*c9*/ { "leave", FALSE, NONE, 0, 0 },
853 /*ca*/ { "lret", FALSE, NONE, op1(Iw), 0 },
854 /*cb*/ { "lret", FALSE, NONE, 0, 0 },
855 /*cc*/ { "int", FALSE, NONE, op1(o3), 0 },
856 /*cd*/ { "int", FALSE, NONE, op1(Ib), 0 },
857 /*ce*/ { "into", FALSE, NONE, 0, 0 },
858 /*cf*/ { "iret", FALSE, NONE, 0, 0 },
860 /*d0*/ { "", TRUE, BYTE, op2(o1, E), db_Grp2 },
861 /*d1*/ { "", TRUE, LONG, op2(o1, E), db_Grp2 },
862 /*d2*/ { "", TRUE, BYTE, op2(CL, E), db_Grp2 },
863 /*d3*/ { "", TRUE, LONG, op2(CL, E), db_Grp2 },
864 /*d4*/ { "aam", FALSE, NONE, op1(Iba), 0 },
865 /*d5*/ { "aad", FALSE, NONE, op1(Iba), 0 },
866 /*d6*/ { ".byte\t0xd6", FALSE, NONE, 0, 0 },
867 /*d7*/ { "xlat", FALSE, BYTE, op1(BX), 0 },
869 /*d8*/ { "", TRUE, NONE, 0, db_Esc8 },
870 /*d9*/ { "", TRUE, NONE, 0, db_Esc9 },
871 /*da*/ { "", TRUE, NONE, 0, db_Esca },
872 /*db*/ { "", TRUE, NONE, 0, db_Escb },
873 /*dc*/ { "", TRUE, NONE, 0, db_Escc },
874 /*dd*/ { "", TRUE, NONE, 0, db_Escd },
875 /*de*/ { "", TRUE, NONE, 0, db_Esce },
876 /*df*/ { "", TRUE, NONE, 0, db_Escf },
878 /*e0*/ { "loopne",FALSE, NONE, op1(Db), 0 },
879 /*e1*/ { "loope", FALSE, NONE, op1(Db), 0 },
880 /*e2*/ { "loop", FALSE, NONE, op1(Db), 0 },
881 /*e3*/ { "jcxz", FALSE, SDEP, op1(Db), "jecxz" },
882 /*e4*/ { "in", FALSE, BYTE, op2(Ib, A), 0 },
883 /*e5*/ { "in", FALSE, LONG, op2(Ib, A) , 0 },
884 /*e6*/ { "out", FALSE, BYTE, op2(A, Ib), 0 },
885 /*e7*/ { "out", FALSE, LONG, op2(A, Ib) , 0 },
887 /*e8*/ { "call", FALSE, NONE, op1(Dl), 0 },
888 /*e9*/ { "jmp", FALSE, NONE, op1(Dl), 0 },
889 /*ea*/ { "ljmp", FALSE, NONE, op1(OS), 0 },
890 /*eb*/ { "jmp", FALSE, NONE, op1(Db), 0 },
891 /*ec*/ { "in", FALSE, BYTE, op2(DX, A), 0 },
892 /*ed*/ { "in", FALSE, LONG, op2(DX, A) , 0 },
893 /*ee*/ { "out", FALSE, BYTE, op2(A, DX), 0 },
894 /*ef*/ { "out", FALSE, LONG, op2(A, DX) , 0 },
896 /*f0*/ { "", FALSE, NONE, 0, 0 },
897 /*f1*/ { ".byte\t0xf1", FALSE, NONE, 0, 0 },
898 /*f2*/ { "", FALSE, NONE, 0, 0 },
899 /*f3*/ { "", FALSE, NONE, 0, 0 },
900 /*f4*/ { "hlt", FALSE, NONE, 0, 0 },
901 /*f5*/ { "cmc", FALSE, NONE, 0, 0 },
902 /*f6*/ { "", TRUE, BYTE, 0, db_Grp3 },
903 /*f7*/ { "", TRUE, LONG, 0, db_Grp3 },
905 /*f8*/ { "clc", FALSE, NONE, 0, 0 },
906 /*f9*/ { "stc", FALSE, NONE, 0, 0 },
907 /*fa*/ { "cli", FALSE, NONE, 0, 0 },
908 /*fb*/ { "sti", FALSE, NONE, 0, 0 },
909 /*fc*/ { "cld", FALSE, NONE, 0, 0 },
910 /*fd*/ { "std", FALSE, NONE, 0, 0 },
911 /*fe*/ { "", TRUE, NONE, 0, db_Grp4 },
912 /*ff*/ { "", TRUE, NONE, 0, db_Grp5 },
915 static const struct inst db_bad_inst =
916 { "???", FALSE, NONE, 0, 0 }
919 #define f_mod(rex, byte) ((byte)>>6)
920 #define f_reg(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_R ? 0x8 : 0x0))
921 #define f_rm(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0))
923 #define sib_ss(rex, byte) ((byte)>>6)
924 #define sib_index(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_X ? 0x8 : 0x0))
925 #define sib_base(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0))
928 int is_reg; /* if reg, reg number is in 'disp' */
935 static const char * const db_reg[2][4][16] = {
937 {{"%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh",
938 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" },
939 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
940 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" },
941 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
942 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" },
943 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
944 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }},
946 {{"%al", "%cl", "%dl", "%bl", "%spl", "%bpl", "%sil", "%dil",
947 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" },
948 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
949 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" },
950 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
951 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" },
952 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
953 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }}
956 static const char * const db_seg_reg[8] = {
957 "%es", "%cs", "%ss", "%ds", "%fs", "%gs", "", ""
961 * lengths for size attributes
963 static const int db_lengths[] = {
973 #define get_value_inc(result, loc, size, is_signed) \
974 result = db_get_value((loc), (size), (is_signed)); \
978 db_disasm_esc(db_addr_t loc, int inst, int rex, int short_addr,
979 int size, const char *seg);
980 static void db_print_address(const char *seg, int size, int rex,
981 struct i_addr *addrp);
983 db_read_address(db_addr_t loc, int short_addr, int rex, int regmodrm,
984 struct i_addr *addrp);
987 * Read address at location and return updated location.
990 db_read_address(loc, short_addr, rex, regmodrm, addrp)
995 struct i_addr * addrp; /* out */
997 int mod, rm, sib, index, disp, size, have_sib;
999 mod = f_mod(rex, regmodrm);
1000 rm = f_rm(rex, regmodrm);
1003 addrp->is_reg = TRUE;
1007 addrp->is_reg = FALSE;
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);
1020 addrp->index = db_reg[1][size][index];
1021 addrp->ss = sib_ss(rex, sib);
1029 get_value_inc(addrp->disp, loc, 4, FALSE);
1032 else if (short_addr)
1033 addrp->base = "%eip";
1035 addrp->base = "%rip";
1038 addrp->base = db_reg[1][size][rm];
1043 get_value_inc(disp, loc, 1, TRUE);
1045 addrp->base = db_reg[1][size][rm];
1049 get_value_inc(disp, loc, 4, FALSE);
1051 addrp->base = db_reg[1][size][rm];
1058 db_print_address(seg, size, rex, addrp)
1062 struct i_addr * addrp;
1064 if (addrp->is_reg) {
1065 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][addrp->disp]);
1070 db_printf("%s:", seg);
1073 if (addrp->disp != 0 || (addrp->base == 0 && addrp->index == 0))
1074 db_printsym((db_addr_t)addrp->disp, DB_STGY_ANY);
1075 if (addrp->base != 0 || addrp->index != 0) {
1078 db_printf("%s", addrp->base);
1080 db_printf(",%s,%d", addrp->index, 1<<addrp->ss);
1086 * Disassemble floating-point ("escape") instruction
1087 * and return updated location.
1090 db_disasm_esc(loc, inst, rex, short_addr, size, seg)
1099 const struct finst * fp;
1101 struct i_addr address;
1104 get_value_inc(regmodrm, loc, 1, FALSE);
1105 fp = &db_Esc_inst[inst - 0xd8][f_reg(rex, regmodrm)];
1106 mod = f_mod(rex, regmodrm);
1108 if (*fp->f_name == '\0') {
1109 db_printf("<bad instruction>");
1113 * Normal address modes.
1115 loc = db_read_address(loc, short_addr, rex, regmodrm, &address);
1116 db_printf("%s", fp->f_name);
1117 switch(fp->f_size) {
1140 db_print_address(seg, BYTE, rex, &address);
1144 * 'reg-reg' - special formats
1146 switch (fp->f_rrmode) {
1148 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1149 db_printf("%s\t%%st,%%st(%d)",name,f_rm(rex, regmodrm));
1152 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1153 db_printf("%s\t%%st(%d),%%st",name, f_rm(rex, regmodrm));
1156 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1157 db_printf("%s\t%%st(%d)",name, f_rm(rex, regmodrm));
1160 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)];
1163 db_printf("%s", name);
1166 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)];
1169 db_printf("%s\t%%ax", name);
1173 db_printf("<bad instruction>");
1182 * Disassemble instruction at 'loc'. 'altfmt' specifies an
1183 * (optional) alternate format. Return address of start of
1187 db_disasm(db_addr_t loc, boolean_t altfmt)
1193 const struct inst * ip;
1194 const char * i_name;
1207 struct i_addr address;
1209 get_value_inc(inst, loc, 1, FALSE);
1221 case 0x66: /* data16 */
1249 db_printf("repne ");
1258 if (inst >= 0x40 && inst < 0x50) {
1263 get_value_inc(inst, loc, 1, FALSE);
1267 db_printf("pause\n");
1270 db_printf("repe "); /* XXX repe VS rep */
1275 if (inst >= 0xd8 && inst <= 0xdf) {
1276 loc = db_disasm_esc(loc, inst, rex, short_addr, size, seg);
1282 get_value_inc(inst, loc, 1, FALSE);
1283 ip = db_inst_0f[inst>>4];
1292 ip = &db_inst_table[inst];
1294 if (ip->i_has_modrm) {
1295 get_value_inc(regmodrm, loc, 1, FALSE);
1296 loc = db_read_address(loc, short_addr, rex, regmodrm, &address);
1299 i_name = ip->i_name;
1300 i_size = ip->i_size;
1301 i_mode = ip->i_mode;
1303 if (ip->i_extra == db_Grp1 || ip->i_extra == db_Grp2 ||
1304 ip->i_extra == db_Grp6 || ip->i_extra == db_Grp7 ||
1305 ip->i_extra == db_Grp8 || ip->i_extra == db_Grp9 ||
1306 ip->i_extra == db_Grp15) {
1307 i_name = ((const char * const *)ip->i_extra)[f_reg(rex, regmodrm)];
1309 else if (ip->i_extra == db_Grp3) {
1311 ip = &ip[f_reg(rex, regmodrm)];
1312 i_name = ip->i_name;
1313 i_mode = ip->i_mode;
1315 else if (ip->i_extra == db_Grp4 || ip->i_extra == db_Grp5) {
1317 ip = &ip[f_reg(rex, regmodrm)];
1318 i_name = ip->i_name;
1319 i_mode = ip->i_mode;
1320 i_size = ip->i_size;
1323 /* Special cases that don't fit well in the tables. */
1324 if (ip->i_extra == db_Grp7 && f_mod(rex, regmodrm) == 3) {
1343 if (ip->i_extra == db_Grp15 && f_mod(rex, regmodrm) == 3) {
1344 i_name = db_Grp15b[f_reg(rex, regmodrm)];
1349 if (i_size == SDEP) {
1351 db_printf("%s", i_name);
1353 db_printf("%s", (const char *)ip->i_extra);
1356 db_printf("%s", i_name);
1357 if ((inst >= 0x50 && inst <= 0x5f) || inst == 0x68 || inst == 0x6a) {
1361 if (i_size != NONE) {
1362 if (i_size == BYTE) {
1366 else if (i_size == WORD) {
1370 else if (size == WORD)
1383 i_mode >>= 8, first = FALSE)
1388 switch (i_mode & 0xFF) {
1391 db_print_address(seg, size, rex, &address);
1396 db_print_address(seg, size, rex, &address);
1400 db_print_address(seg, (rex & REX_W) ? QUAD : LONG, rex, &address);
1404 db_print_address(seg, LONG, 0, &address);
1408 db_print_address(seg, WORD, rex, &address);
1412 db_print_address(seg, BYTE, rex, &address);
1416 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][f_reg(rex, regmodrm)]);
1420 db_printf("%s", db_reg[rex != 0 ? 1 : 0][WORD][f_reg(rex, regmodrm)]);
1424 db_printf("%s", db_reg[0][QUAD][f_rm(rex, inst)]);
1428 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(rex & REX_R) ? QUAD : LONG][f_rm(rex, inst)]);
1432 db_printf("%s", db_seg_reg[f_reg(rex, regmodrm)]);
1436 db_printf("%s", db_seg_reg[f_reg(rex, inst)]);
1440 db_printf("%s", db_reg[rex != 0 ? 1 : 0][size][0]); /* acc */
1445 db_printf("%s:", seg);
1446 db_printf("(%s)", short_addr ? "%bx" : "%ebx");
1459 db_printf("%s:", seg);
1460 db_printf("(%s)", short_addr ? "%si" : "%rsi");
1464 db_printf("%%es:(%s)", short_addr ? "%di" : "%rdi");
1468 db_printf("%%cr%d", f_reg(rex, regmodrm));
1472 db_printf("%%dr%d", f_reg(rex, regmodrm));
1476 db_printf("%%tr%d", f_reg(rex, regmodrm));
1480 len = db_lengths[size];
1481 get_value_inc(imm, loc, len, FALSE);
1482 db_printf("$%#x", imm);
1486 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size];
1487 get_value_inc(imm, loc, len, FALSE);
1488 db_printf("$%x", imm);
1492 get_value_inc(imm, loc, 1, FALSE);
1493 db_printf("$%#x", imm);
1497 get_value_inc(imm, loc, 1, FALSE);
1499 db_printf("$%#x", imm);
1503 get_value_inc(imm, loc, 1, TRUE);
1506 db_printf("$%x", imm);
1510 get_value_inc(imm, loc, 2, FALSE);
1511 db_printf("$%#x", imm);
1515 len = db_lengths[rex & REX_W ? QUAD : LONG];
1516 get_value_inc(imm64, loc, len, FALSE);
1517 db_printf("$%#lx", imm64);
1521 len = (short_addr ? 2 : 4);
1522 get_value_inc(displ, loc, len, FALSE);
1524 db_printf("%s:%x",seg, displ);
1526 db_printsym((db_addr_t)displ, DB_STGY_ANY);
1530 get_value_inc(displ, loc, 1, TRUE);
1534 db_printsym((db_addr_t)displ, DB_STGY_XTRN);
1538 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size];
1539 get_value_inc(displ, loc, len, FALSE);
1543 db_printsym((db_addr_t)displ, DB_STGY_XTRN);
1555 len = db_lengths[size];
1556 get_value_inc(imm, loc, len, FALSE); /* offset */
1557 get_value_inc(imm2, loc, 2, FALSE); /* segment */
1558 db_printf("$%#x,%#x", imm2, imm);
1565 void be_x86_64_disasm_one_insn(ADDRESS64 *addr, int display)
1567 db_printf = display ? dbg_printf : no_printf;
1568 addr->Offset = db_disasm(addr->Offset, TRUE);