2 * Copyright (c) 2008 The DragonFly Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in
12 * the documentation and/or other materials provided with the
14 * 3. Neither the name of The DragonFly Project nor the names of its
15 * contributors may be used to endorse or promote products derived
16 * from this software without specific, prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
24 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
28 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * Mach Operating System
34 * Copyright (c) 1991,1990 Carnegie Mellon University
35 * All Rights Reserved.
37 * Permission to use, copy, modify and distribute this software and its
38 * documentation is hereby granted, provided that both the copyright
39 * notice and this permission notice appear in all copies of the
40 * software, derivative works or modified versions, and any portions
41 * thereof, and that both notices appear in supporting documentation.
43 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
44 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
45 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
47 * Carnegie Mellon requests users of this software to return to
49 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
50 * School of Computer Science
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54 * any improvements or extensions that they make and grant Carnegie the
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57 * $DragonFly: src/sys/platform/pc64/amd64/db_disasm.c,v 1.3 2008/08/29 17:07:10 dillon Exp $
61 * Instruction disassembler.
63 #include <sys/param.h>
66 #include <ddb/db_access.h>
67 #include <ddb/db_sym.h>
94 #define E 1 /* general effective address */
95 #define Eind 2 /* indirect address (jump, call) */
96 #define Ew 3 /* address, word size */
97 #define Eb 4 /* address, byte size */
98 #define R 5 /* register, in 'reg' field */
99 #define Rw 6 /* word register, in 'reg' field */
100 #define Ri 7 /* register in instruction */
101 #define S 8 /* segment reg, in 'reg' field */
102 #define Si 9 /* segment reg, in instruction */
103 #define A 10 /* accumulator */
104 #define BX 11 /* (bx) */
105 #define CL 12 /* cl, for shifts */
106 #define DX 13 /* dx, for IO */
107 #define SI 14 /* si */
108 #define DI 15 /* di */
109 #define CR 16 /* control register */
110 #define DR 17 /* debug register */
111 #define TR 18 /* test register */
112 #define I 19 /* immediate, unsigned */
113 #define Is 20 /* immediate, signed */
114 #define Ib 21 /* byte immediate, unsigned */
115 #define Ibs 22 /* byte immediate, signed */
116 #define Iw 23 /* word immediate, unsigned */
117 #define Ilq 24 /* long/quad immediate, unsigned */
118 #define O 25 /* direct address */
119 #define Db 26 /* byte displacement from EIP */
120 #define Dl 27 /* long displacement from EIP */
121 #define o1 28 /* constant 1 */
122 #define o3 29 /* constant 3 */
123 #define OS 30 /* immediate offset/segment */
124 #define ST 31 /* FP stack top */
125 #define STI 32 /* FP stack */
126 #define X 33 /* extended FP op */
127 #define XA 34 /* for 'fstcw %ax' */
128 #define El 35 /* address, long/quad size */
129 #define Ril 36 /* long register in instruction */
130 #define Iba 37 /* byte immediate, don't print if 0xa */
131 #define EL 38 /* address, explicitly long size */
134 const char * i_name; /* name */
135 short i_has_modrm; /* has regmodrm byte */
136 short i_size; /* operand size */
137 int i_mode; /* addressing modes */
138 const void * i_extra; /* pointer to extra opcode table */
142 #define op2(x,y) ((x)|((y)<<8))
143 #define op3(x,y,z) ((x)|((y)<<8)|((z)<<16))
146 const char * f_name; /* name for memory instruction */
147 int f_size; /* size for memory instruction */
148 int f_rrmode; /* mode for rr instruction */
149 const void * f_rrname; /* name for rr instruction
150 (or pointer to table) */
153 static const char * const db_Grp6[] = {
164 static const char * const db_Grp7[] = {
175 static const char * const db_Grp8[] = {
186 static const char * const db_Grp9[] = {
197 static const struct inst db_inst_0f0x[] = {
198 /*00*/ { "", TRUE, NONE, op1(Ew), db_Grp6 },
199 /*01*/ { "", TRUE, NONE, op1(Ew), db_Grp7 },
200 /*02*/ { "lar", TRUE, LONG, op2(E,R), 0 },
201 /*03*/ { "lsl", TRUE, LONG, op2(E,R), 0 },
202 /*04*/ { "", FALSE, NONE, 0, 0 },
203 /*05*/ { "", FALSE, NONE, 0, 0 },
204 /*06*/ { "clts", FALSE, NONE, 0, 0 },
205 /*07*/ { "", FALSE, NONE, 0, 0 },
207 /*08*/ { "invd", FALSE, NONE, 0, 0 },
208 /*09*/ { "wbinvd",FALSE, NONE, 0, 0 },
209 /*0a*/ { "", FALSE, NONE, 0, 0 },
210 /*0b*/ { "", FALSE, NONE, 0, 0 },
211 /*0c*/ { "", FALSE, NONE, 0, 0 },
212 /*0d*/ { "", FALSE, NONE, 0, 0 },
213 /*0e*/ { "", FALSE, NONE, 0, 0 },
214 /*0f*/ { "", FALSE, NONE, 0, 0 },
217 static const struct inst db_inst_0f2x[] = {
218 /*20*/ { "mov", TRUE, LONG, op2(CR,El), 0 },
219 /*21*/ { "mov", TRUE, LONG, op2(DR,El), 0 },
220 /*22*/ { "mov", TRUE, LONG, op2(El,CR), 0 },
221 /*23*/ { "mov", TRUE, LONG, op2(El,DR), 0 },
222 /*24*/ { "mov", TRUE, LONG, op2(TR,El), 0 },
223 /*25*/ { "", FALSE, NONE, 0, 0 },
224 /*26*/ { "mov", TRUE, LONG, op2(El,TR), 0 },
225 /*27*/ { "", FALSE, NONE, 0, 0 },
227 /*28*/ { "", FALSE, NONE, 0, 0 },
228 /*29*/ { "", FALSE, NONE, 0, 0 },
229 /*2a*/ { "", FALSE, NONE, 0, 0 },
230 /*2b*/ { "", FALSE, NONE, 0, 0 },
231 /*2c*/ { "", FALSE, NONE, 0, 0 },
232 /*2d*/ { "", FALSE, NONE, 0, 0 },
233 /*2e*/ { "", FALSE, NONE, 0, 0 },
234 /*2f*/ { "", FALSE, NONE, 0, 0 },
237 static const struct inst db_inst_0f3x[] = {
238 /*30*/ { "wrmsr", FALSE, NONE, 0, 0 },
239 /*31*/ { "rdtsc", FALSE, NONE, 0, 0 },
240 /*32*/ { "rdmsr", FALSE, NONE, 0, 0 },
241 /*33*/ { "rdpmc", FALSE, NONE, 0, 0 },
242 /*34*/ { "", FALSE, NONE, 0, 0 },
243 /*35*/ { "", FALSE, NONE, 0, 0 },
244 /*36*/ { "", FALSE, NONE, 0, 0 },
245 /*37*/ { "", FALSE, NONE, 0, 0 },
247 /*38*/ { "", FALSE, NONE, 0, 0 },
248 /*39*/ { "", FALSE, NONE, 0, 0 },
249 /*3a*/ { "", FALSE, NONE, 0, 0 },
250 /*3b*/ { "", FALSE, NONE, 0, 0 },
251 /*3c*/ { "", FALSE, NONE, 0, 0 },
252 /*3d*/ { "", FALSE, NONE, 0, 0 },
253 /*3e*/ { "", FALSE, NONE, 0, 0 },
254 /*3f*/ { "", FALSE, NONE, 0, 0 },
257 static const struct inst db_inst_0f4x[] = {
258 /*40*/ { "cmovo", TRUE, NONE, op2(E, R), 0 },
259 /*41*/ { "cmovno", TRUE, NONE, op2(E, R), 0 },
260 /*42*/ { "cmovb", TRUE, NONE, op2(E, R), 0 },
261 /*43*/ { "cmovnb", TRUE, NONE, op2(E, R), 0 },
262 /*44*/ { "cmovz", TRUE, NONE, op2(E, R), 0 },
263 /*45*/ { "cmovnz", TRUE, NONE, op2(E, R), 0 },
264 /*46*/ { "cmovbe", TRUE, NONE, op2(E, R), 0 },
265 /*47*/ { "cmovnbe",TRUE, NONE, op2(E, R), 0 },
267 /*48*/ { "cmovs", TRUE, NONE, op2(E, R), 0 },
268 /*49*/ { "cmovns", TRUE, NONE, op2(E, R), 0 },
269 /*4a*/ { "cmovp", TRUE, NONE, op2(E, R), 0 },
270 /*4b*/ { "cmovnp", TRUE, NONE, op2(E, R), 0 },
271 /*4c*/ { "cmovl", TRUE, NONE, op2(E, R), 0 },
272 /*4d*/ { "cmovnl", TRUE, NONE, op2(E, R), 0 },
273 /*4e*/ { "cmovle", TRUE, NONE, op2(E, R), 0 },
274 /*4f*/ { "cmovnle",TRUE, NONE, op2(E, R), 0 },
277 static const struct inst db_inst_0f8x[] = {
278 /*80*/ { "jo", FALSE, NONE, op1(Dl), 0 },
279 /*81*/ { "jno", FALSE, NONE, op1(Dl), 0 },
280 /*82*/ { "jb", FALSE, NONE, op1(Dl), 0 },
281 /*83*/ { "jnb", FALSE, NONE, op1(Dl), 0 },
282 /*84*/ { "jz", FALSE, NONE, op1(Dl), 0 },
283 /*85*/ { "jnz", FALSE, NONE, op1(Dl), 0 },
284 /*86*/ { "jbe", FALSE, NONE, op1(Dl), 0 },
285 /*87*/ { "jnbe", FALSE, NONE, op1(Dl), 0 },
287 /*88*/ { "js", FALSE, NONE, op1(Dl), 0 },
288 /*89*/ { "jns", FALSE, NONE, op1(Dl), 0 },
289 /*8a*/ { "jp", FALSE, NONE, op1(Dl), 0 },
290 /*8b*/ { "jnp", FALSE, NONE, op1(Dl), 0 },
291 /*8c*/ { "jl", FALSE, NONE, op1(Dl), 0 },
292 /*8d*/ { "jnl", FALSE, NONE, op1(Dl), 0 },
293 /*8e*/ { "jle", FALSE, NONE, op1(Dl), 0 },
294 /*8f*/ { "jnle", FALSE, NONE, op1(Dl), 0 },
297 static const struct inst db_inst_0f9x[] = {
298 /*90*/ { "seto", TRUE, NONE, op1(Eb), 0 },
299 /*91*/ { "setno", TRUE, NONE, op1(Eb), 0 },
300 /*92*/ { "setb", TRUE, NONE, op1(Eb), 0 },
301 /*93*/ { "setnb", TRUE, NONE, op1(Eb), 0 },
302 /*94*/ { "setz", TRUE, NONE, op1(Eb), 0 },
303 /*95*/ { "setnz", TRUE, NONE, op1(Eb), 0 },
304 /*96*/ { "setbe", TRUE, NONE, op1(Eb), 0 },
305 /*97*/ { "setnbe",TRUE, NONE, op1(Eb), 0 },
307 /*98*/ { "sets", TRUE, NONE, op1(Eb), 0 },
308 /*99*/ { "setns", TRUE, NONE, op1(Eb), 0 },
309 /*9a*/ { "setp", TRUE, NONE, op1(Eb), 0 },
310 /*9b*/ { "setnp", TRUE, NONE, op1(Eb), 0 },
311 /*9c*/ { "setl", TRUE, NONE, op1(Eb), 0 },
312 /*9d*/ { "setnl", TRUE, NONE, op1(Eb), 0 },
313 /*9e*/ { "setle", TRUE, NONE, op1(Eb), 0 },
314 /*9f*/ { "setnle",TRUE, NONE, op1(Eb), 0 },
317 static const struct inst db_inst_0fax[] = {
318 /*a0*/ { "push", FALSE, NONE, op1(Si), 0 },
319 /*a1*/ { "pop", FALSE, NONE, op1(Si), 0 },
320 /*a2*/ { "cpuid", FALSE, NONE, 0, 0 },
321 /*a3*/ { "bt", TRUE, LONG, op2(R,E), 0 },
322 /*a4*/ { "shld", TRUE, LONG, op3(Ib,R,E), 0 },
323 /*a5*/ { "shld", TRUE, LONG, op3(CL,R,E), 0 },
324 /*a6*/ { "", FALSE, NONE, 0, 0 },
325 /*a7*/ { "", FALSE, NONE, 0, 0 },
327 /*a8*/ { "push", FALSE, NONE, op1(Si), 0 },
328 /*a9*/ { "pop", FALSE, NONE, op1(Si), 0 },
329 /*aa*/ { "rsm", FALSE, NONE, 0, 0 },
330 /*ab*/ { "bts", TRUE, LONG, op2(R,E), 0 },
331 /*ac*/ { "shrd", TRUE, LONG, op3(Ib,R,E), 0 },
332 /*ad*/ { "shrd", TRUE, LONG, op3(CL,R,E), 0 },
333 /*a6*/ { "", FALSE, NONE, 0, 0 },
334 /*a7*/ { "imul", TRUE, LONG, op2(E,R), 0 },
337 static const struct inst db_inst_0fbx[] = {
338 /*b0*/ { "cmpxchg",TRUE, BYTE, op2(R, E), 0 },
339 /*b0*/ { "cmpxchg",TRUE, LONG, op2(R, E), 0 },
340 /*b2*/ { "lss", TRUE, LONG, op2(E, R), 0 },
341 /*b3*/ { "btr", TRUE, LONG, op2(R, E), 0 },
342 /*b4*/ { "lfs", TRUE, LONG, op2(E, R), 0 },
343 /*b5*/ { "lgs", TRUE, LONG, op2(E, R), 0 },
344 /*b6*/ { "movzb", TRUE, LONG, op2(Eb, R), 0 },
345 /*b7*/ { "movzw", TRUE, LONG, op2(Ew, R), 0 },
347 /*b8*/ { "", FALSE, NONE, 0, 0 },
348 /*b9*/ { "", FALSE, NONE, 0, 0 },
349 /*ba*/ { "", TRUE, LONG, op2(Ib, E), db_Grp8 },
350 /*bb*/ { "btc", TRUE, LONG, op2(R, E), 0 },
351 /*bc*/ { "bsf", TRUE, LONG, op2(E, R), 0 },
352 /*bd*/ { "bsr", TRUE, LONG, op2(E, R), 0 },
353 /*be*/ { "movsb", TRUE, LONG, op2(Eb, R), 0 },
354 /*bf*/ { "movsw", TRUE, LONG, op2(Ew, R), 0 },
357 static const struct inst db_inst_0fcx[] = {
358 /*c0*/ { "xadd", TRUE, BYTE, op2(R, E), 0 },
359 /*c1*/ { "xadd", TRUE, LONG, op2(R, E), 0 },
360 /*c2*/ { "", FALSE, NONE, 0, 0 },
361 /*c3*/ { "", FALSE, NONE, 0, 0 },
362 /*c4*/ { "", FALSE, NONE, 0, 0 },
363 /*c5*/ { "", FALSE, NONE, 0, 0 },
364 /*c6*/ { "", FALSE, NONE, 0, 0 },
365 /*c7*/ { "", TRUE, NONE, op1(E), db_Grp9 },
366 /*c8*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
367 /*c9*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
368 /*ca*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
369 /*cb*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
370 /*cc*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
371 /*cd*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
372 /*ce*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
373 /*cf*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
376 static const struct inst * const db_inst_0f[] = {
395 static const char * const db_Esc92[] = {
396 "fnop", "", "", "", "", "", "", ""
398 static const char * const db_Esc94[] = {
399 "fchs", "fabs", "", "", "ftst", "fxam", "", ""
401 static const char * const db_Esc95[] = {
402 "fld1", "fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz",""
404 static const char * const db_Esc96[] = {
405 "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp",
408 static const char * const db_Esc97[] = {
409 "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos"
412 static const char * const db_Esca5[] = {
413 "", "fucompp","", "", "", "", "", ""
416 static const char * const db_Escb4[] = {
417 "fneni","fndisi", "fnclex","fninit","fsetpm", "", "", ""
420 static const char * const db_Esce3[] = {
421 "", "fcompp","", "", "", "", "", ""
424 static const char * const db_Escf4[] = {
425 "fnstsw","", "", "", "", "", "", ""
428 static const struct finst db_Esc8[] = {
429 /*0*/ { "fadd", SNGL, op2(STI,ST), 0 },
430 /*1*/ { "fmul", SNGL, op2(STI,ST), 0 },
431 /*2*/ { "fcom", SNGL, op2(STI,ST), 0 },
432 /*3*/ { "fcomp", SNGL, op2(STI,ST), 0 },
433 /*4*/ { "fsub", SNGL, op2(STI,ST), 0 },
434 /*5*/ { "fsubr", SNGL, op2(STI,ST), 0 },
435 /*6*/ { "fdiv", SNGL, op2(STI,ST), 0 },
436 /*7*/ { "fdivr", SNGL, op2(STI,ST), 0 },
439 static const struct finst db_Esc9[] = {
440 /*0*/ { "fld", SNGL, op1(STI), 0 },
441 /*1*/ { "", NONE, op1(STI), "fxch" },
442 /*2*/ { "fst", SNGL, op1(X), db_Esc92 },
443 /*3*/ { "fstp", SNGL, 0, 0 },
444 /*4*/ { "fldenv", NONE, op1(X), db_Esc94 },
445 /*5*/ { "fldcw", NONE, op1(X), db_Esc95 },
446 /*6*/ { "fnstenv",NONE, op1(X), db_Esc96 },
447 /*7*/ { "fnstcw", NONE, op1(X), db_Esc97 },
450 static const struct finst db_Esca[] = {
451 /*0*/ { "fiadd", LONG, 0, 0 },
452 /*1*/ { "fimul", LONG, 0, 0 },
453 /*2*/ { "ficom", LONG, 0, 0 },
454 /*3*/ { "ficomp", LONG, 0, 0 },
455 /*4*/ { "fisub", LONG, 0, 0 },
456 /*5*/ { "fisubr", LONG, op1(X), db_Esca5 },
457 /*6*/ { "fidiv", LONG, 0, 0 },
458 /*7*/ { "fidivr", LONG, 0, 0 }
461 static const struct finst db_Escb[] = {
462 /*0*/ { "fild", LONG, 0, 0 },
463 /*1*/ { "", NONE, 0, 0 },
464 /*2*/ { "fist", LONG, 0, 0 },
465 /*3*/ { "fistp", LONG, 0, 0 },
466 /*4*/ { "", WORD, op1(X), db_Escb4 },
467 /*5*/ { "fld", EXTR, 0, 0 },
468 /*6*/ { "", WORD, 0, 0 },
469 /*7*/ { "fstp", EXTR, 0, 0 },
472 static const struct finst db_Escc[] = {
473 /*0*/ { "fadd", DBLR, op2(ST,STI), 0 },
474 /*1*/ { "fmul", DBLR, op2(ST,STI), 0 },
475 /*2*/ { "fcom", DBLR, 0, 0 },
476 /*3*/ { "fcomp", DBLR, 0, 0 },
477 /*4*/ { "fsub", DBLR, op2(ST,STI), "fsubr" },
478 /*5*/ { "fsubr", DBLR, op2(ST,STI), "fsub" },
479 /*6*/ { "fdiv", DBLR, op2(ST,STI), "fdivr" },
480 /*7*/ { "fdivr", DBLR, op2(ST,STI), "fdiv" },
483 static const struct finst db_Escd[] = {
484 /*0*/ { "fld", DBLR, op1(STI), "ffree" },
485 /*1*/ { "", NONE, 0, 0 },
486 /*2*/ { "fst", DBLR, op1(STI), 0 },
487 /*3*/ { "fstp", DBLR, op1(STI), 0 },
488 /*4*/ { "frstor", NONE, op1(STI), "fucom" },
489 /*5*/ { "", NONE, op1(STI), "fucomp" },
490 /*6*/ { "fnsave", NONE, 0, 0 },
491 /*7*/ { "fnstsw", NONE, 0, 0 },
494 static const struct finst db_Esce[] = {
495 /*0*/ { "fiadd", WORD, op2(ST,STI), "faddp" },
496 /*1*/ { "fimul", WORD, op2(ST,STI), "fmulp" },
497 /*2*/ { "ficom", WORD, 0, 0 },
498 /*3*/ { "ficomp", WORD, op1(X), db_Esce3 },
499 /*4*/ { "fisub", WORD, op2(ST,STI), "fsubrp" },
500 /*5*/ { "fisubr", WORD, op2(ST,STI), "fsubp" },
501 /*6*/ { "fidiv", WORD, op2(ST,STI), "fdivrp" },
502 /*7*/ { "fidivr", WORD, op2(ST,STI), "fdivp" },
505 static const struct finst db_Escf[] = {
506 /*0*/ { "fild", WORD, 0, 0 },
507 /*1*/ { "", NONE, 0, 0 },
508 /*2*/ { "fist", WORD, 0, 0 },
509 /*3*/ { "fistp", WORD, 0, 0 },
510 /*4*/ { "fbld", NONE, op1(XA), db_Escf4 },
511 /*5*/ { "fild", QUAD, 0, 0 },
512 /*6*/ { "fbstp", NONE, 0, 0 },
513 /*7*/ { "fistp", QUAD, 0, 0 },
516 static const struct finst * const db_Esc_inst[] = {
517 db_Esc8, db_Esc9, db_Esca, db_Escb,
518 db_Escc, db_Escd, db_Esce, db_Escf
521 static const char * const db_Grp1[] = {
532 static const char * const db_Grp2[] = {
543 static const struct inst db_Grp3[] = {
544 { "test", TRUE, NONE, op2(I,E), 0 },
545 { "test", TRUE, NONE, op2(I,E), 0 },
546 { "not", TRUE, NONE, op1(E), 0 },
547 { "neg", TRUE, NONE, op1(E), 0 },
548 { "mul", TRUE, NONE, op2(E,A), 0 },
549 { "imul", TRUE, NONE, op2(E,A), 0 },
550 { "div", TRUE, NONE, op2(E,A), 0 },
551 { "idiv", TRUE, NONE, op2(E,A), 0 },
554 static const struct inst db_Grp4[] = {
555 { "inc", TRUE, BYTE, op1(E), 0 },
556 { "dec", TRUE, BYTE, op1(E), 0 },
557 { "", TRUE, NONE, 0, 0 },
558 { "", TRUE, NONE, 0, 0 },
559 { "", TRUE, NONE, 0, 0 },
560 { "", TRUE, NONE, 0, 0 },
561 { "", TRUE, NONE, 0, 0 },
562 { "", TRUE, NONE, 0, 0 }
565 static const struct inst db_Grp5[] = {
566 { "inc", TRUE, LONG, op1(E), 0 },
567 { "dec", TRUE, LONG, op1(E), 0 },
568 { "call", TRUE, LONG, op1(Eind),0 },
569 { "lcall", TRUE, LONG, op1(Eind),0 },
570 { "jmp", TRUE, LONG, op1(Eind),0 },
571 { "ljmp", TRUE, LONG, op1(Eind),0 },
572 { "push", TRUE, LONG, op1(E), 0 },
573 { "", TRUE, NONE, 0, 0 }
576 static const struct inst db_inst_table[256] = {
577 /*00*/ { "add", TRUE, BYTE, op2(R, E), 0 },
578 /*01*/ { "add", TRUE, LONG, op2(R, E), 0 },
579 /*02*/ { "add", TRUE, BYTE, op2(E, R), 0 },
580 /*03*/ { "add", TRUE, LONG, op2(E, R), 0 },
581 /*04*/ { "add", FALSE, BYTE, op2(I, A), 0 },
582 /*05*/ { "add", FALSE, LONG, op2(Is, A), 0 },
583 /*06*/ { "push", FALSE, NONE, op1(Si), 0 },
584 /*07*/ { "pop", FALSE, NONE, op1(Si), 0 },
586 /*08*/ { "or", TRUE, BYTE, op2(R, E), 0 },
587 /*09*/ { "or", TRUE, LONG, op2(R, E), 0 },
588 /*0a*/ { "or", TRUE, BYTE, op2(E, R), 0 },
589 /*0b*/ { "or", TRUE, LONG, op2(E, R), 0 },
590 /*0c*/ { "or", FALSE, BYTE, op2(I, A), 0 },
591 /*0d*/ { "or", FALSE, LONG, op2(I, A), 0 },
592 /*0e*/ { "push", FALSE, NONE, op1(Si), 0 },
593 /*0f*/ { "", FALSE, NONE, 0, 0 },
595 /*10*/ { "adc", TRUE, BYTE, op2(R, E), 0 },
596 /*11*/ { "adc", TRUE, LONG, op2(R, E), 0 },
597 /*12*/ { "adc", TRUE, BYTE, op2(E, R), 0 },
598 /*13*/ { "adc", TRUE, LONG, op2(E, R), 0 },
599 /*14*/ { "adc", FALSE, BYTE, op2(I, A), 0 },
600 /*15*/ { "adc", FALSE, LONG, op2(Is, A), 0 },
601 /*16*/ { "push", FALSE, NONE, op1(Si), 0 },
602 /*17*/ { "pop", FALSE, NONE, op1(Si), 0 },
604 /*18*/ { "sbb", TRUE, BYTE, op2(R, E), 0 },
605 /*19*/ { "sbb", TRUE, LONG, op2(R, E), 0 },
606 /*1a*/ { "sbb", TRUE, BYTE, op2(E, R), 0 },
607 /*1b*/ { "sbb", TRUE, LONG, op2(E, R), 0 },
608 /*1c*/ { "sbb", FALSE, BYTE, op2(I, A), 0 },
609 /*1d*/ { "sbb", FALSE, LONG, op2(Is, A), 0 },
610 /*1e*/ { "push", FALSE, NONE, op1(Si), 0 },
611 /*1f*/ { "pop", FALSE, NONE, op1(Si), 0 },
613 /*20*/ { "and", TRUE, BYTE, op2(R, E), 0 },
614 /*21*/ { "and", TRUE, LONG, op2(R, E), 0 },
615 /*22*/ { "and", TRUE, BYTE, op2(E, R), 0 },
616 /*23*/ { "and", TRUE, LONG, op2(E, R), 0 },
617 /*24*/ { "and", FALSE, BYTE, op2(I, A), 0 },
618 /*25*/ { "and", FALSE, LONG, op2(I, A), 0 },
619 /*26*/ { "", FALSE, NONE, 0, 0 },
620 /*27*/ { "daa", FALSE, NONE, 0, 0 },
622 /*28*/ { "sub", TRUE, BYTE, op2(R, E), 0 },
623 /*29*/ { "sub", TRUE, LONG, op2(R, E), 0 },
624 /*2a*/ { "sub", TRUE, BYTE, op2(E, R), 0 },
625 /*2b*/ { "sub", TRUE, LONG, op2(E, R), 0 },
626 /*2c*/ { "sub", FALSE, BYTE, op2(I, A), 0 },
627 /*2d*/ { "sub", FALSE, LONG, op2(Is, A), 0 },
628 /*2e*/ { "", FALSE, NONE, 0, 0 },
629 /*2f*/ { "das", FALSE, NONE, 0, 0 },
631 /*30*/ { "xor", TRUE, BYTE, op2(R, E), 0 },
632 /*31*/ { "xor", TRUE, LONG, op2(R, E), 0 },
633 /*32*/ { "xor", TRUE, BYTE, op2(E, R), 0 },
634 /*33*/ { "xor", TRUE, LONG, op2(E, R), 0 },
635 /*34*/ { "xor", FALSE, BYTE, op2(I, A), 0 },
636 /*35*/ { "xor", FALSE, LONG, op2(I, A), 0 },
637 /*36*/ { "", FALSE, NONE, 0, 0 },
638 /*37*/ { "aaa", FALSE, NONE, 0, 0 },
640 /*38*/ { "cmp", TRUE, BYTE, op2(R, E), 0 },
641 /*39*/ { "cmp", TRUE, LONG, op2(R, E), 0 },
642 /*3a*/ { "cmp", TRUE, BYTE, op2(E, R), 0 },
643 /*3b*/ { "cmp", TRUE, LONG, op2(E, R), 0 },
644 /*3c*/ { "cmp", FALSE, BYTE, op2(I, A), 0 },
645 /*3d*/ { "cmp", FALSE, LONG, op2(Is, A), 0 },
646 /*3e*/ { "", FALSE, NONE, 0, 0 },
647 /*3f*/ { "aas", FALSE, NONE, 0, 0 },
649 /*40*/ { "rex", FALSE, NONE, 0, 0 },
650 /*41*/ { "rex.b", FALSE, NONE, 0, 0 },
651 /*42*/ { "rex.x", FALSE, NONE, 0, 0 },
652 /*43*/ { "rex.xb", FALSE, NONE, 0, 0 },
653 /*44*/ { "rex.r", FALSE, NONE, 0, 0 },
654 /*45*/ { "rex.rb", FALSE, NONE, 0, 0 },
655 /*46*/ { "rex.rx", FALSE, NONE, 0, 0 },
656 /*47*/ { "rex.rxb", FALSE, NONE, 0, 0 },
658 /*48*/ { "rex.w", FALSE, NONE, 0, 0 },
659 /*49*/ { "rex.wb", FALSE, NONE, 0, 0 },
660 /*4a*/ { "rex.wx", FALSE, NONE, 0, 0 },
661 /*4b*/ { "rex.wxb", FALSE, NONE, 0, 0 },
662 /*4c*/ { "rex.wr", FALSE, NONE, 0, 0 },
663 /*4d*/ { "rex.wrb", FALSE, NONE, 0, 0 },
664 /*4e*/ { "rex.wrx", FALSE, NONE, 0, 0 },
665 /*4f*/ { "rex.wrxb", FALSE, NONE, 0, 0 },
667 /*50*/ { "push", FALSE, LONG, op1(Ri), 0 },
668 /*51*/ { "push", FALSE, LONG, op1(Ri), 0 },
669 /*52*/ { "push", FALSE, LONG, op1(Ri), 0 },
670 /*53*/ { "push", FALSE, LONG, op1(Ri), 0 },
671 /*54*/ { "push", FALSE, LONG, op1(Ri), 0 },
672 /*55*/ { "push", FALSE, LONG, op1(Ri), 0 },
673 /*56*/ { "push", FALSE, LONG, op1(Ri), 0 },
674 /*57*/ { "push", FALSE, LONG, op1(Ri), 0 },
676 /*58*/ { "pop", FALSE, LONG, op1(Ri), 0 },
677 /*59*/ { "pop", FALSE, LONG, op1(Ri), 0 },
678 /*5a*/ { "pop", FALSE, LONG, op1(Ri), 0 },
679 /*5b*/ { "pop", FALSE, LONG, op1(Ri), 0 },
680 /*5c*/ { "pop", FALSE, LONG, op1(Ri), 0 },
681 /*5d*/ { "pop", FALSE, LONG, op1(Ri), 0 },
682 /*5e*/ { "pop", FALSE, LONG, op1(Ri), 0 },
683 /*5f*/ { "pop", FALSE, LONG, op1(Ri), 0 },
685 /*60*/ { "pusha", FALSE, LONG, 0, 0 },
686 /*61*/ { "popa", FALSE, LONG, 0, 0 },
687 /*62*/ { "bound", TRUE, LONG, op2(E, R), 0 },
688 /*63*/ { "movslq", TRUE, NONE, op2(EL,R), 0 },
690 /*64*/ { "", FALSE, NONE, 0, 0 },
691 /*65*/ { "", FALSE, NONE, 0, 0 },
692 /*66*/ { "", FALSE, NONE, 0, 0 },
693 /*67*/ { "", FALSE, NONE, 0, 0 },
695 /*68*/ { "push", FALSE, LONG, op1(I), 0 },
696 /*69*/ { "imul", TRUE, LONG, op3(I,E,R), 0 },
697 /*6a*/ { "push", FALSE, LONG, op1(Ibs), 0 },
698 /*6b*/ { "imul", TRUE, LONG, op3(Ibs,E,R),0 },
699 /*6c*/ { "ins", FALSE, BYTE, op2(DX, DI), 0 },
700 /*6d*/ { "ins", FALSE, LONG, op2(DX, DI), 0 },
701 /*6e*/ { "outs", FALSE, BYTE, op2(SI, DX), 0 },
702 /*6f*/ { "outs", FALSE, LONG, op2(SI, DX), 0 },
704 /*70*/ { "jo", FALSE, NONE, op1(Db), 0 },
705 /*71*/ { "jno", FALSE, NONE, op1(Db), 0 },
706 /*72*/ { "jb", FALSE, NONE, op1(Db), 0 },
707 /*73*/ { "jnb", FALSE, NONE, op1(Db), 0 },
708 /*74*/ { "jz", FALSE, NONE, op1(Db), 0 },
709 /*75*/ { "jnz", FALSE, NONE, op1(Db), 0 },
710 /*76*/ { "jbe", FALSE, NONE, op1(Db), 0 },
711 /*77*/ { "jnbe", FALSE, NONE, op1(Db), 0 },
713 /*78*/ { "js", FALSE, NONE, op1(Db), 0 },
714 /*79*/ { "jns", FALSE, NONE, op1(Db), 0 },
715 /*7a*/ { "jp", FALSE, NONE, op1(Db), 0 },
716 /*7b*/ { "jnp", FALSE, NONE, op1(Db), 0 },
717 /*7c*/ { "jl", FALSE, NONE, op1(Db), 0 },
718 /*7d*/ { "jnl", FALSE, NONE, op1(Db), 0 },
719 /*7e*/ { "jle", FALSE, NONE, op1(Db), 0 },
720 /*7f*/ { "jnle", FALSE, NONE, op1(Db), 0 },
722 /*80*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 },
723 /*81*/ { "", TRUE, LONG, op2(I, E), db_Grp1 },
724 /*82*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 },
725 /*83*/ { "", TRUE, LONG, op2(Ibs,E), db_Grp1 },
726 /*84*/ { "test", TRUE, BYTE, op2(R, E), 0 },
727 /*85*/ { "test", TRUE, LONG, op2(R, E), 0 },
728 /*86*/ { "xchg", TRUE, BYTE, op2(R, E), 0 },
729 /*87*/ { "xchg", TRUE, LONG, op2(R, E), 0 },
731 /*88*/ { "mov", TRUE, BYTE, op2(R, E), 0 },
732 /*89*/ { "mov", TRUE, LONG, op2(R, E), 0 },
733 /*8a*/ { "mov", TRUE, BYTE, op2(E, R), 0 },
734 /*8b*/ { "mov", TRUE, LONG, op2(E, R), 0 },
735 /*8c*/ { "mov", TRUE, NONE, op2(S, Ew), 0 },
736 /*8d*/ { "lea", TRUE, LONG, op2(E, R), 0 },
737 /*8e*/ { "mov", TRUE, NONE, op2(Ew, S), 0 },
738 /*8f*/ { "pop", TRUE, LONG, op1(E), 0 },
740 /*90*/ { "nop", FALSE, NONE, 0, 0 },
741 /*91*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
742 /*92*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
743 /*93*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
744 /*94*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
745 /*95*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
746 /*96*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
747 /*97*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
749 /*98*/ { "cbw", FALSE, SDEP, 0, "cwde" }, /* cbw/cwde */
750 /*99*/ { "cwd", FALSE, SDEP, 0, "cdq" }, /* cwd/cdq */
751 /*9a*/ { "lcall", FALSE, NONE, op1(OS), 0 },
752 /*9b*/ { "wait", FALSE, NONE, 0, 0 },
753 /*9c*/ { "pushf", FALSE, LONG, 0, 0 },
754 /*9d*/ { "popf", FALSE, LONG, 0, 0 },
755 /*9e*/ { "sahf", FALSE, NONE, 0, 0 },
756 /*9f*/ { "lahf", FALSE, NONE, 0, 0 },
758 /*a0*/ { "mov", FALSE, BYTE, op2(O, A), 0 },
759 /*a1*/ { "mov", FALSE, LONG, op2(O, A), 0 },
760 /*a2*/ { "mov", FALSE, BYTE, op2(A, O), 0 },
761 /*a3*/ { "mov", FALSE, LONG, op2(A, O), 0 },
762 /*a4*/ { "movs", FALSE, BYTE, op2(SI,DI), 0 },
763 /*a5*/ { "movs", FALSE, LONG, op2(SI,DI), 0 },
764 /*a6*/ { "cmps", FALSE, BYTE, op2(SI,DI), 0 },
765 /*a7*/ { "cmps", FALSE, LONG, op2(SI,DI), 0 },
767 /*a8*/ { "test", FALSE, BYTE, op2(I, A), 0 },
768 /*a9*/ { "test", FALSE, LONG, op2(I, A), 0 },
769 /*aa*/ { "stos", FALSE, BYTE, op1(DI), 0 },
770 /*ab*/ { "stos", FALSE, LONG, op1(DI), 0 },
771 /*ac*/ { "lods", FALSE, BYTE, op1(SI), 0 },
772 /*ad*/ { "lods", FALSE, LONG, op1(SI), 0 },
773 /*ae*/ { "scas", FALSE, BYTE, op1(SI), 0 },
774 /*af*/ { "scas", FALSE, LONG, op1(SI), 0 },
776 /*b0*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
777 /*b1*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
778 /*b2*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
779 /*b3*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
780 /*b4*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
781 /*b5*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
782 /*b6*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
783 /*b7*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
785 /*b8*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
786 /*b9*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
787 /*ba*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
788 /*bb*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
789 /*bc*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
790 /*bd*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
791 /*be*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
792 /*bf*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
794 /*c0*/ { "", TRUE, BYTE, op2(Ib, E), db_Grp2 },
795 /*c1*/ { "", TRUE, LONG, op2(Ib, E), db_Grp2 },
796 /*c2*/ { "ret", FALSE, NONE, op1(Iw), 0 },
797 /*c3*/ { "ret", FALSE, NONE, 0, 0 },
798 /*c4*/ { "les", TRUE, LONG, op2(E, R), 0 },
799 /*c5*/ { "lds", TRUE, LONG, op2(E, R), 0 },
800 /*c6*/ { "mov", TRUE, BYTE, op2(I, E), 0 },
801 /*c7*/ { "mov", TRUE, LONG, op2(I, E), 0 },
803 /*c8*/ { "enter", FALSE, NONE, op2(Iw, Ib), 0 },
804 /*c9*/ { "leave", FALSE, NONE, 0, 0 },
805 /*ca*/ { "lret", FALSE, NONE, op1(Iw), 0 },
806 /*cb*/ { "lret", FALSE, NONE, 0, 0 },
807 /*cc*/ { "int", FALSE, NONE, op1(o3), 0 },
808 /*cd*/ { "int", FALSE, NONE, op1(Ib), 0 },
809 /*ce*/ { "into", FALSE, NONE, 0, 0 },
810 /*cf*/ { "iret", FALSE, NONE, 0, 0 },
812 /*d0*/ { "", TRUE, BYTE, op2(o1, E), db_Grp2 },
813 /*d1*/ { "", TRUE, LONG, op2(o1, E), db_Grp2 },
814 /*d2*/ { "", TRUE, BYTE, op2(CL, E), db_Grp2 },
815 /*d3*/ { "", TRUE, LONG, op2(CL, E), db_Grp2 },
816 /*d4*/ { "aam", FALSE, NONE, op1(Iba), 0 },
817 /*d5*/ { "aad", FALSE, NONE, op1(Iba), 0 },
818 /*d6*/ { ".byte\t0xd6", FALSE, NONE, 0, 0 },
819 /*d7*/ { "xlat", FALSE, BYTE, op1(BX), 0 },
821 /*d8*/ { "", TRUE, NONE, 0, db_Esc8 },
822 /*d9*/ { "", TRUE, NONE, 0, db_Esc9 },
823 /*da*/ { "", TRUE, NONE, 0, db_Esca },
824 /*db*/ { "", TRUE, NONE, 0, db_Escb },
825 /*dc*/ { "", TRUE, NONE, 0, db_Escc },
826 /*dd*/ { "", TRUE, NONE, 0, db_Escd },
827 /*de*/ { "", TRUE, NONE, 0, db_Esce },
828 /*df*/ { "", TRUE, NONE, 0, db_Escf },
830 /*e0*/ { "loopne",FALSE, NONE, op1(Db), 0 },
831 /*e1*/ { "loope", FALSE, NONE, op1(Db), 0 },
832 /*e2*/ { "loop", FALSE, NONE, op1(Db), 0 },
833 /*e3*/ { "jcxz", FALSE, SDEP, op1(Db), "jecxz" },
834 /*e4*/ { "in", FALSE, BYTE, op2(Ib, A), 0 },
835 /*e5*/ { "in", FALSE, LONG, op2(Ib, A) , 0 },
836 /*e6*/ { "out", FALSE, BYTE, op2(A, Ib), 0 },
837 /*e7*/ { "out", FALSE, LONG, op2(A, Ib) , 0 },
839 /*e8*/ { "call", FALSE, NONE, op1(Dl), 0 },
840 /*e9*/ { "jmp", FALSE, NONE, op1(Dl), 0 },
841 /*ea*/ { "ljmp", FALSE, NONE, op1(OS), 0 },
842 /*eb*/ { "jmp", FALSE, NONE, op1(Db), 0 },
843 /*ec*/ { "in", FALSE, BYTE, op2(DX, A), 0 },
844 /*ed*/ { "in", FALSE, LONG, op2(DX, A) , 0 },
845 /*ee*/ { "out", FALSE, BYTE, op2(A, DX), 0 },
846 /*ef*/ { "out", FALSE, LONG, op2(A, DX) , 0 },
848 /*f0*/ { "", FALSE, NONE, 0, 0 },
849 /*f1*/ { ".byte\t0xf1", FALSE, NONE, 0, 0 },
850 /*f2*/ { "", FALSE, NONE, 0, 0 },
851 /*f3*/ { "", FALSE, NONE, 0, 0 },
852 /*f4*/ { "hlt", FALSE, NONE, 0, 0 },
853 /*f5*/ { "cmc", FALSE, NONE, 0, 0 },
854 /*f6*/ { "", TRUE, BYTE, 0, db_Grp3 },
855 /*f7*/ { "", TRUE, LONG, 0, db_Grp3 },
857 /*f8*/ { "clc", FALSE, NONE, 0, 0 },
858 /*f9*/ { "stc", FALSE, NONE, 0, 0 },
859 /*fa*/ { "cli", FALSE, NONE, 0, 0 },
860 /*fb*/ { "sti", FALSE, NONE, 0, 0 },
861 /*fc*/ { "cld", FALSE, NONE, 0, 0 },
862 /*fd*/ { "std", FALSE, NONE, 0, 0 },
863 /*fe*/ { "", TRUE, NONE, 0, db_Grp4 },
864 /*ff*/ { "", TRUE, NONE, 0, db_Grp5 },
867 static const struct inst db_bad_inst =
868 { "???", FALSE, NONE, 0, 0 }
871 #define f_mod(rex, byte) ((byte)>>6)
872 #define f_reg(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_R ? 0x8 : 0x0))
873 #define f_rm(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0))
875 #define sib_ss(rex, byte) ((byte)>>6)
876 #define sib_index(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_X ? 0x8 : 0x0))
877 #define sib_base(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0))
880 int is_reg; /* if reg, reg number is in 'disp' */
887 static const char * const db_reg[2][4][16] = {
889 {{"%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh",
890 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" },
891 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
892 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" },
893 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
894 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" },
895 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
896 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }},
898 {{"%al", "%cl", "%dl", "%bl", "%spl", "%bpl", "%sil", "%dil",
899 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" },
900 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
901 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" },
902 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
903 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" },
904 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
905 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }}
908 static const char * const db_seg_reg[8] = {
909 "%es", "%cs", "%ss", "%ds", "%fs", "%gs", "", ""
913 * lengths for size attributes
915 static const int db_lengths[] = {
925 #define get_value_inc(result, loc, size, is_signed) \
926 result = db_get_value((loc), (size), (is_signed)); \
930 db_disasm_esc(db_addr_t loc, int inst, int rex, int short_addr,
931 int size, const char *seg);
932 static void db_print_address(const char *seg, int size, int rex,
933 struct i_addr *addrp);
935 db_read_address(db_addr_t loc, int short_addr, int rex, int regmodrm,
936 struct i_addr *addrp);
939 * Read address at location and return updated location.
942 db_read_address(loc, short_addr, rex, regmodrm, addrp)
947 struct i_addr * addrp; /* out */
949 int mod, rm, sib, index, disp, size, have_sib;
951 mod = f_mod(rex, regmodrm);
952 rm = f_rm(rex, regmodrm);
955 addrp->is_reg = TRUE;
959 addrp->is_reg = FALSE;
967 if ((rm & 0x7) == 4) {
968 get_value_inc(sib, loc, 1, FALSE);
969 rm = sib_base(rex, sib);
970 index = sib_index(rex, sib);
972 addrp->index = db_reg[1][size][index];
973 addrp->ss = sib_ss(rex, sib);
981 get_value_inc(addrp->disp, loc, 4, FALSE);
985 addrp->base = "%eip";
987 addrp->base = "%rip";
990 addrp->base = db_reg[1][size][rm];
995 get_value_inc(disp, loc, 1, TRUE);
997 addrp->base = db_reg[1][size][rm];
1001 get_value_inc(disp, loc, 4, FALSE);
1003 addrp->base = db_reg[1][size][rm];
1010 db_print_address(seg, size, rex, addrp)
1014 struct i_addr * addrp;
1016 if (addrp->is_reg) {
1017 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][addrp->disp]);
1022 db_printf("%s:", seg);
1025 if (addrp->disp != 0 || (addrp->base == 0 && addrp->index == 0))
1026 db_printsym((db_addr_t)addrp->disp, DB_STGY_ANY);
1027 if (addrp->base != 0 || addrp->index != 0) {
1030 db_printf("%s", addrp->base);
1032 db_printf(",%s,%d", addrp->index, 1<<addrp->ss);
1038 * Disassemble floating-point ("escape") instruction
1039 * and return updated location.
1042 db_disasm_esc(loc, inst, rex, short_addr, size, seg)
1051 const struct finst * fp;
1053 struct i_addr address;
1056 get_value_inc(regmodrm, loc, 1, FALSE);
1057 fp = &db_Esc_inst[inst - 0xd8][f_reg(rex, regmodrm)];
1058 mod = f_mod(rex, regmodrm);
1060 if (*fp->f_name == '\0') {
1061 db_printf("<bad instruction>");
1065 * Normal address modes.
1067 loc = db_read_address(loc, short_addr, rex, regmodrm, &address);
1068 db_printf("%s", fp->f_name);
1069 switch(fp->f_size) {
1092 db_print_address(seg, BYTE, rex, &address);
1096 * 'reg-reg' - special formats
1098 switch (fp->f_rrmode) {
1100 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1101 db_printf("%s\t%%st,%%st(%d)",name,f_rm(rex, regmodrm));
1104 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1105 db_printf("%s\t%%st(%d),%%st",name, f_rm(rex, regmodrm));
1108 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1109 db_printf("%s\t%%st(%d)",name, f_rm(rex, regmodrm));
1112 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)];
1115 db_printf("%s", name);
1118 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)];
1121 db_printf("%s\t%%ax", name);
1125 db_printf("<bad instruction>");
1134 * Disassemble instruction at 'loc'. 'altfmt' specifies an
1135 * (optional) alternate format. Return address of start of
1139 db_disasm(loc, altfmt, dummy)
1148 const struct inst * ip;
1149 const char * i_name;
1161 struct i_addr address;
1163 get_value_inc(inst, loc, 1, FALSE);
1174 case 0x66: /* data16 */
1202 db_printf("repne ");
1205 db_printf("repe "); /* XXX repe VS rep */
1211 if (inst >= 0x40 && inst < 0x50) {
1216 get_value_inc(inst, loc, 1, FALSE);
1220 if (inst >= 0xd8 && inst <= 0xdf) {
1221 loc = db_disasm_esc(loc, inst, rex, short_addr, size, seg);
1227 get_value_inc(inst, loc, 1, FALSE);
1228 ip = db_inst_0f[inst>>4];
1237 ip = &db_inst_table[inst];
1239 if (ip->i_has_modrm) {
1240 get_value_inc(regmodrm, loc, 1, FALSE);
1241 loc = db_read_address(loc, short_addr, rex, regmodrm, &address);
1244 i_name = ip->i_name;
1245 i_size = ip->i_size;
1246 i_mode = ip->i_mode;
1248 if (ip->i_extra == db_Grp1 || ip->i_extra == db_Grp2 ||
1249 ip->i_extra == db_Grp6 || ip->i_extra == db_Grp7 ||
1250 ip->i_extra == db_Grp8 || ip->i_extra == db_Grp9) {
1251 i_name = ((const char * const *)ip->i_extra)[f_reg(rex, regmodrm)];
1253 else if (ip->i_extra == db_Grp3) {
1255 ip = &ip[f_reg(rex, regmodrm)];
1256 i_name = ip->i_name;
1257 i_mode = ip->i_mode;
1259 else if (ip->i_extra == db_Grp4 || ip->i_extra == db_Grp5) {
1261 ip = &ip[f_reg(rex, regmodrm)];
1262 i_name = ip->i_name;
1263 i_mode = ip->i_mode;
1264 i_size = ip->i_size;
1267 if (i_size == SDEP) {
1269 db_printf("%s", i_name);
1271 db_printf("%s", (const char *)ip->i_extra);
1274 db_printf("%s", i_name);
1275 if ((inst >= 0x50 && inst <= 0x5f) || inst == 0x68 || inst == 0x6a) {
1279 if (i_size != NONE) {
1280 if (i_size == BYTE) {
1284 else if (i_size == WORD) {
1288 else if (size == WORD)
1301 i_mode >>= 8, first = FALSE)
1306 switch (i_mode & 0xFF) {
1309 db_print_address(seg, size, rex, &address);
1314 db_print_address(seg, size, rex, &address);
1318 db_print_address(seg, (rex & REX_W) ? QUAD : LONG, rex, &address);
1322 db_print_address(seg, LONG, 0, &address);
1326 db_print_address(seg, WORD, rex, &address);
1330 db_print_address(seg, BYTE, rex, &address);
1334 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][f_reg(rex, regmodrm)]);
1338 db_printf("%s", db_reg[rex != 0 ? 1 : 0][WORD][f_reg(rex, regmodrm)]);
1342 db_printf("%s", db_reg[0][QUAD][f_rm(rex, inst)]);
1346 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(rex & REX_R) ? QUAD : LONG][f_rm(rex, inst)]);
1350 db_printf("%s", db_seg_reg[f_reg(rex, regmodrm)]);
1354 db_printf("%s", db_seg_reg[f_reg(rex, inst)]);
1358 db_printf("%s", db_reg[rex != 0 ? 1 : 0][size][0]); /* acc */
1363 db_printf("%s:", seg);
1364 db_printf("(%s)", short_addr ? "%bx" : "%ebx");
1377 db_printf("%s:", seg);
1378 db_printf("(%s)", short_addr ? "%si" : "%rsi");
1382 db_printf("%%es:(%s)", short_addr ? "%di" : "%rdi");
1386 db_printf("%%cr%d", f_reg(rex, regmodrm));
1390 db_printf("%%dr%d", f_reg(rex, regmodrm));
1394 db_printf("%%tr%d", f_reg(rex, regmodrm));
1398 len = db_lengths[size];
1399 get_value_inc(imm, loc, len, FALSE);
1400 db_printf("$%#r", imm);
1404 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size];
1405 get_value_inc(imm, loc, len, FALSE);
1406 db_printf("$%+#r", imm);
1410 get_value_inc(imm, loc, 1, FALSE);
1411 db_printf("$%#r", imm);
1415 get_value_inc(imm, loc, 1, FALSE);
1417 db_printf("$%#r", imm);
1421 get_value_inc(imm, loc, 1, TRUE);
1424 db_printf("$%+#r", imm);
1428 get_value_inc(imm, loc, 2, FALSE);
1429 db_printf("$%#r", imm);
1433 len = db_lengths[rex & REX_W ? QUAD : LONG];
1434 get_value_inc(imm64, loc, len, FALSE);
1435 db_printf("$%#lr", imm64);
1439 len = (short_addr ? 2 : 4);
1440 get_value_inc(displ, loc, len, FALSE);
1442 db_printf("%s:%+#r",seg, displ);
1444 db_printsym((db_addr_t)displ, DB_STGY_ANY);
1448 get_value_inc(displ, loc, 1, TRUE);
1452 db_printsym((db_addr_t)displ, DB_STGY_XTRN);
1456 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size];
1457 get_value_inc(displ, loc, len, FALSE);
1461 db_printsym((db_addr_t)displ, DB_STGY_XTRN);
1473 len = db_lengths[size];
1474 get_value_inc(imm, loc, len, FALSE); /* offset */
1475 get_value_inc(imm2, loc, 2, FALSE); /* segment */
1476 db_printf("$%#r,%#r", imm2, imm);