1 /*-
2 * Mach Operating System
3 * Copyright (c) 1991,1990 Carnegie Mellon University
4 * All Rights Reserved.
5 *
6 * Permission to use, copy, modify and distribute this software and its
7 * documentation is hereby granted, provided that both the copyright
8 * notice and this permission notice appear in all copies of the
9 * software, derivative works or modified versions, and any portions
10 * thereof, and that both notices appear in supporting documentation.
11 *
12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS
13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
15 *
16 * Carnegie Mellon requests users of this software to return to
17 *
18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
19 * School of Computer Science
20 * Carnegie Mellon University
21 * Pittsburgh PA 15213-3890
22 *
23 * any improvements or extensions that they make and grant Carnegie the
24 * rights to redistribute these changes.
25 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 /*
31 * Instruction disassembler.
32 */
33 #include <sys/param.h>
34 #include <sys/libkern.h>
35
36 #include <ddb/ddb.h>
37 #include <ddb/db_access.h>
38 #include <ddb/db_sym.h>
39
40 /*
41 * Size attributes
42 */
43 #define BYTE 0
44 #define WORD 1
45 #define LONG 2
46 #define QUAD 3
47 #define SNGL 4
48 #define DBLR 5
49 #define EXTR 6
50 #define SDEP 7
51 #define ADEP 8
52 #define ESC 9
53 #define NONE 10
54
55 /*
56 * REX prefix and bits
57 */
58 #define REX_B 1
59 #define REX_X 2
60 #define REX_R 4
61 #define REX_W 8
62 #define REX 0x40
63
64 /*
65 * Addressing modes
66 */
67 #define E 1 /* general effective address */
68 #define Eind 2 /* indirect address (jump, call) */
69 #define Ew 3 /* address, word size */
70 #define Eb 4 /* address, byte size */
71 #define R 5 /* register, in 'reg' field */
72 #define Rw 6 /* word register, in 'reg' field */
73 #define Rq 39 /* quad register, in 'reg' field */
74 #define Rv 40 /* register in 'r/m' field */
75 #define Ri 7 /* register in instruction */
76 #define S 8 /* segment reg, in 'reg' field */
77 #define Si 9 /* segment reg, in instruction */
78 #define A 10 /* accumulator */
79 #define BX 11 /* (bx) */
80 #define CL 12 /* cl, for shifts */
81 #define DX 13 /* dx, for IO */
82 #define SI 14 /* si */
83 #define DI 15 /* di */
84 #define CR 16 /* control register */
85 #define DR 17 /* debug register */
86 #define TR 18 /* test register */
87 #define I 19 /* immediate, unsigned */
88 #define Is 20 /* immediate, signed */
89 #define Ib 21 /* byte immediate, unsigned */
90 #define Ibs 22 /* byte immediate, signed */
91 #define Iw 23 /* word immediate, unsigned */
92 #define Ilq 24 /* long/quad immediate, unsigned */
93 #define O 25 /* direct address */
94 #define Db 26 /* byte displacement from EIP */
95 #define Dl 27 /* long displacement from EIP */
96 #define o1 28 /* constant 1 */
97 #define o3 29 /* constant 3 */
98 #define OS 30 /* immediate offset/segment */
99 #define ST 31 /* FP stack top */
100 #define STI 32 /* FP stack */
101 #define X 33 /* extended FP op */
102 #define XA 34 /* for 'fstcw %ax' */
103 #define El 35 /* address, long/quad size */
104 #define Ril 36 /* long register in instruction */
105 #define Iba 37 /* byte immediate, don't print if 0xa */
106 #define EL 38 /* address, explicitly long size */
107
108 struct inst {
109 const char * i_name; /* name */
110 short i_has_modrm; /* has regmodrm byte */
111 short i_size; /* operand size */
112 int i_mode; /* addressing modes */
113 const void * i_extra; /* pointer to extra opcode table */
114 };
115
116 #define op1(x) (x)
117 #define op2(x,y) ((x)|((y)<<8))
118 #define op3(x,y,z) ((x)|((y)<<8)|((z)<<16))
119
120 struct finst {
121 const char * f_name; /* name for memory instruction */
122 int f_size; /* size for memory instruction */
123 int f_rrmode; /* mode for rr instruction */
124 const void * f_rrname; /* name for rr instruction
125 (or pointer to table) */
126 };
127
128 static const struct inst db_inst_0f388x[] = {
129 /*80*/ { "", TRUE, SDEP, op2(E, Rq), "invept" },
130 /*81*/ { "", TRUE, SDEP, op2(E, Rq), "invvpid" },
131 /*82*/ { "", TRUE, SDEP, op2(E, Rq), "invpcid" },
132 /*83*/ { "", FALSE, NONE, 0, 0 },
133 /*84*/ { "", FALSE, NONE, 0, 0 },
134 /*85*/ { "", FALSE, NONE, 0, 0 },
135 /*86*/ { "", FALSE, NONE, 0, 0 },
136 /*87*/ { "", FALSE, NONE, 0, 0 },
137
138 /*88*/ { "", FALSE, NONE, 0, 0 },
139 /*89*/ { "", FALSE, NONE, 0, 0 },
140 /*8a*/ { "", FALSE, NONE, 0, 0 },
141 /*8b*/ { "", FALSE, NONE, 0, 0 },
142 /*8c*/ { "", FALSE, NONE, 0, 0 },
143 /*8d*/ { "", FALSE, NONE, 0, 0 },
144 /*8e*/ { "", FALSE, NONE, 0, 0 },
145 /*8f*/ { "", FALSE, NONE, 0, 0 },
146 };
147
148 static const struct inst * const db_inst_0f38[] = {
149 0,
150 0,
151 0,
152 0,
153 0,
154 0,
155 0,
156 0,
157 db_inst_0f388x,
158 0,
159 0,
160 0,
161 0,
162 0,
163 0,
164 0
165 };
166
167 static const char * const db_Grp6[] = {
168 "sldt",
169 "str",
170 "lldt",
171 "ltr",
172 "verr",
173 "verw",
174 "",
175 ""
176 };
177
178 static const char * const db_Grp7[] = {
179 "sgdt",
180 "sidt",
181 "lgdt",
182 "lidt",
183 "smsw",
184 "",
185 "lmsw",
186 "invlpg"
187 };
188
189 static const char * const db_Grp8[] = {
190 "",
191 "",
192 "",
193 "",
194 "bt",
195 "bts",
196 "btr",
197 "btc"
198 };
199
200 static const char * const db_Grp9[] = {
201 "",
202 "cmpxchg8b",
203 "",
204 "",
205 "",
206 "",
207 "vmptrld",
208 "vmptrst"
209 };
210
211 static const char * const db_Grp15[] = {
212 "fxsave",
213 "fxrstor",
214 "ldmxcsr",
215 "stmxcsr",
216 "xsave",
217 "xrstor",
218 "xsaveopt",
219 "clflush"
220 };
221
222 static const char * const db_Grp15b[] = {
223 "",
224 "",
225 "",
226 "",
227 "",
228 "lfence",
229 "mfence",
230 "sfence"
231 };
232
233 static const struct inst db_inst_0f0x[] = {
234 /*00*/ { "", TRUE, NONE, op1(Ew), db_Grp6 },
235 /*01*/ { "", TRUE, NONE, op1(Ew), db_Grp7 },
236 /*02*/ { "lar", TRUE, LONG, op2(E,R), 0 },
237 /*03*/ { "lsl", TRUE, LONG, op2(E,R), 0 },
238 /*04*/ { "", FALSE, NONE, 0, 0 },
239 /*05*/ { "syscall",FALSE,NONE, 0, 0 },
240 /*06*/ { "clts", FALSE, NONE, 0, 0 },
241 /*07*/ { "sysret",FALSE, NONE, 0, 0 },
242
243 /*08*/ { "invd", FALSE, NONE, 0, 0 },
244 /*09*/ { "wbinvd",FALSE, NONE, 0, 0 },
245 /*0a*/ { "", FALSE, NONE, 0, 0 },
246 /*0b*/ { "", FALSE, NONE, 0, 0 },
247 /*0c*/ { "", FALSE, NONE, 0, 0 },
248 /*0d*/ { "", FALSE, NONE, 0, 0 },
249 /*0e*/ { "", FALSE, NONE, 0, 0 },
250 /*0f*/ { "", FALSE, NONE, 0, 0 },
251 };
252
253 static const struct inst db_inst_0f1x[] = {
254 /*10*/ { "", FALSE, NONE, 0, 0 },
255 /*11*/ { "", FALSE, NONE, 0, 0 },
256 /*12*/ { "", FALSE, NONE, 0, 0 },
257 /*13*/ { "", FALSE, NONE, 0, 0 },
258 /*14*/ { "", FALSE, NONE, 0, 0 },
259 /*15*/ { "", FALSE, NONE, 0, 0 },
260 /*16*/ { "", FALSE, NONE, 0, 0 },
261 /*17*/ { "", FALSE, NONE, 0, 0 },
262
263 /*18*/ { "", FALSE, NONE, 0, 0 },
264 /*19*/ { "", FALSE, NONE, 0, 0 },
265 /*1a*/ { "", FALSE, NONE, 0, 0 },
266 /*1b*/ { "", FALSE, NONE, 0, 0 },
267 /*1c*/ { "", FALSE, NONE, 0, 0 },
268 /*1d*/ { "", FALSE, NONE, 0, 0 },
269 /*1e*/ { "", FALSE, NONE, 0, 0 },
270 /*1f*/ { "nopl", TRUE, SDEP, 0, "nopw" },
271 };
272
273 static const struct inst db_inst_0f2x[] = {
274 /*20*/ { "mov", TRUE, LONG, op2(CR,El), 0 },
275 /*21*/ { "mov", TRUE, LONG, op2(DR,El), 0 },
276 /*22*/ { "mov", TRUE, LONG, op2(El,CR), 0 },
277 /*23*/ { "mov", TRUE, LONG, op2(El,DR), 0 },
278 /*24*/ { "mov", TRUE, LONG, op2(TR,El), 0 },
279 /*25*/ { "", FALSE, NONE, 0, 0 },
280 /*26*/ { "mov", TRUE, LONG, op2(El,TR), 0 },
281 /*27*/ { "", FALSE, NONE, 0, 0 },
282
283 /*28*/ { "", FALSE, NONE, 0, 0 },
284 /*29*/ { "", FALSE, NONE, 0, 0 },
285 /*2a*/ { "", FALSE, NONE, 0, 0 },
286 /*2b*/ { "", FALSE, NONE, 0, 0 },
287 /*2c*/ { "", FALSE, NONE, 0, 0 },
288 /*2d*/ { "", FALSE, NONE, 0, 0 },
289 /*2e*/ { "", FALSE, NONE, 0, 0 },
290 /*2f*/ { "", FALSE, NONE, 0, 0 },
291 };
292
293 static const struct inst db_inst_0f3x[] = {
294 /*30*/ { "wrmsr", FALSE, NONE, 0, 0 },
295 /*31*/ { "rdtsc", FALSE, NONE, 0, 0 },
296 /*32*/ { "rdmsr", FALSE, NONE, 0, 0 },
297 /*33*/ { "rdpmc", FALSE, NONE, 0, 0 },
298 /*34*/ { "sysenter",FALSE,NONE, 0, 0 },
299 /*35*/ { "sysexit",FALSE,NONE, 0, 0 },
300 /*36*/ { "", FALSE, NONE, 0, 0 },
301 /*37*/ { "getsec",FALSE, NONE, 0, 0 },
302
303 /*38*/ { "", FALSE, ESC, 0, db_inst_0f38 },
304 /*39*/ { "", FALSE, NONE, 0, 0 },
305 /*3a*/ { "", FALSE, NONE, 0, 0 },
306 /*3b*/ { "", FALSE, NONE, 0, 0 },
307 /*3c*/ { "", FALSE, NONE, 0, 0 },
308 /*3d*/ { "", FALSE, NONE, 0, 0 },
309 /*3e*/ { "", FALSE, NONE, 0, 0 },
310 /*3f*/ { "", FALSE, NONE, 0, 0 },
311 };
312
313 static const struct inst db_inst_0f4x[] = {
314 /*40*/ { "cmovo", TRUE, NONE, op2(E, R), 0 },
315 /*41*/ { "cmovno", TRUE, NONE, op2(E, R), 0 },
316 /*42*/ { "cmovb", TRUE, NONE, op2(E, R), 0 },
317 /*43*/ { "cmovnb", TRUE, NONE, op2(E, R), 0 },
318 /*44*/ { "cmovz", TRUE, NONE, op2(E, R), 0 },
319 /*45*/ { "cmovnz", TRUE, NONE, op2(E, R), 0 },
320 /*46*/ { "cmovbe", TRUE, NONE, op2(E, R), 0 },
321 /*47*/ { "cmovnbe",TRUE, NONE, op2(E, R), 0 },
322
323 /*48*/ { "cmovs", TRUE, NONE, op2(E, R), 0 },
324 /*49*/ { "cmovns", TRUE, NONE, op2(E, R), 0 },
325 /*4a*/ { "cmovp", TRUE, NONE, op2(E, R), 0 },
326 /*4b*/ { "cmovnp", TRUE, NONE, op2(E, R), 0 },
327 /*4c*/ { "cmovl", TRUE, NONE, op2(E, R), 0 },
328 /*4d*/ { "cmovnl", TRUE, NONE, op2(E, R), 0 },
329 /*4e*/ { "cmovle", TRUE, NONE, op2(E, R), 0 },
330 /*4f*/ { "cmovnle",TRUE, NONE, op2(E, R), 0 },
331 };
332
333 static const struct inst db_inst_0f7x[] = {
334 /*70*/ { "", FALSE, NONE, 0, 0 },
335 /*71*/ { "", FALSE, NONE, 0, 0 },
336 /*72*/ { "", FALSE, NONE, 0, 0 },
337 /*73*/ { "", FALSE, NONE, 0, 0 },
338 /*74*/ { "", FALSE, NONE, 0, 0 },
339 /*75*/ { "", FALSE, NONE, 0, 0 },
340 /*76*/ { "", FALSE, NONE, 0, 0 },
341 /*77*/ { "", FALSE, NONE, 0, 0 },
342
343 /*78*/ { "vmread", TRUE, NONE, op2(Rq, E), 0 },
344 /*79*/ { "vmwrite",TRUE, NONE, op2(E, Rq), 0 },
345 /*7a*/ { "", FALSE, NONE, 0, 0 },
346 /*7b*/ { "", FALSE, NONE, 0, 0 },
347 /*7c*/ { "", FALSE, NONE, 0, 0 },
348 /*7d*/ { "", FALSE, NONE, 0, 0 },
349 /*7e*/ { "", FALSE, NONE, 0, 0 },
350 /*7f*/ { "", FALSE, NONE, 0, 0 },
351 };
352
353 static const struct inst db_inst_0f8x[] = {
354 /*80*/ { "jo", FALSE, NONE, op1(Dl), 0 },
355 /*81*/ { "jno", FALSE, NONE, op1(Dl), 0 },
356 /*82*/ { "jb", FALSE, NONE, op1(Dl), 0 },
357 /*83*/ { "jnb", FALSE, NONE, op1(Dl), 0 },
358 /*84*/ { "jz", FALSE, NONE, op1(Dl), 0 },
359 /*85*/ { "jnz", FALSE, NONE, op1(Dl), 0 },
360 /*86*/ { "jbe", FALSE, NONE, op1(Dl), 0 },
361 /*87*/ { "jnbe", FALSE, NONE, op1(Dl), 0 },
362
363 /*88*/ { "js", FALSE, NONE, op1(Dl), 0 },
364 /*89*/ { "jns", FALSE, NONE, op1(Dl), 0 },
365 /*8a*/ { "jp", FALSE, NONE, op1(Dl), 0 },
366 /*8b*/ { "jnp", FALSE, NONE, op1(Dl), 0 },
367 /*8c*/ { "jl", FALSE, NONE, op1(Dl), 0 },
368 /*8d*/ { "jnl", FALSE, NONE, op1(Dl), 0 },
369 /*8e*/ { "jle", FALSE, NONE, op1(Dl), 0 },
370 /*8f*/ { "jnle", FALSE, NONE, op1(Dl), 0 },
371 };
372
373 static const struct inst db_inst_0f9x[] = {
374 /*90*/ { "seto", TRUE, NONE, op1(Eb), 0 },
375 /*91*/ { "setno", TRUE, NONE, op1(Eb), 0 },
376 /*92*/ { "setb", TRUE, NONE, op1(Eb), 0 },
377 /*93*/ { "setnb", TRUE, NONE, op1(Eb), 0 },
378 /*94*/ { "setz", TRUE, NONE, op1(Eb), 0 },
379 /*95*/ { "setnz", TRUE, NONE, op1(Eb), 0 },
380 /*96*/ { "setbe", TRUE, NONE, op1(Eb), 0 },
381 /*97*/ { "setnbe",TRUE, NONE, op1(Eb), 0 },
382
383 /*98*/ { "sets", TRUE, NONE, op1(Eb), 0 },
384 /*99*/ { "setns", TRUE, NONE, op1(Eb), 0 },
385 /*9a*/ { "setp", TRUE, NONE, op1(Eb), 0 },
386 /*9b*/ { "setnp", TRUE, NONE, op1(Eb), 0 },
387 /*9c*/ { "setl", TRUE, NONE, op1(Eb), 0 },
388 /*9d*/ { "setnl", TRUE, NONE, op1(Eb), 0 },
389 /*9e*/ { "setle", TRUE, NONE, op1(Eb), 0 },
390 /*9f*/ { "setnle",TRUE, NONE, op1(Eb), 0 },
391 };
392
393 static const struct inst db_inst_0fax[] = {
394 /*a0*/ { "push", FALSE, NONE, op1(Si), 0 },
395 /*a1*/ { "pop", FALSE, NONE, op1(Si), 0 },
396 /*a2*/ { "cpuid", FALSE, NONE, 0, 0 },
397 /*a3*/ { "bt", TRUE, LONG, op2(R,E), 0 },
398 /*a4*/ { "shld", TRUE, LONG, op3(Ib,R,E), 0 },
399 /*a5*/ { "shld", TRUE, LONG, op3(CL,R,E), 0 },
400 /*a6*/ { "", FALSE, NONE, 0, 0 },
401 /*a7*/ { "", FALSE, NONE, 0, 0 },
402
403 /*a8*/ { "push", FALSE, NONE, op1(Si), 0 },
404 /*a9*/ { "pop", FALSE, NONE, op1(Si), 0 },
405 /*aa*/ { "rsm", FALSE, NONE, 0, 0 },
406 /*ab*/ { "bts", TRUE, LONG, op2(R,E), 0 },
407 /*ac*/ { "shrd", TRUE, LONG, op3(Ib,R,E), 0 },
408 /*ad*/ { "shrd", TRUE, LONG, op3(CL,R,E), 0 },
409 /*ae*/ { "", TRUE, LONG, op1(E), db_Grp15 },
410 /*af*/ { "imul", TRUE, LONG, op2(E,R), 0 },
411 };
412
413 static const struct inst db_inst_0fbx[] = {
414 /*b0*/ { "cmpxchg",TRUE, BYTE, op2(R, E), 0 },
415 /*b0*/ { "cmpxchg",TRUE, LONG, op2(R, E), 0 },
416 /*b2*/ { "lss", TRUE, LONG, op2(E, R), 0 },
417 /*b3*/ { "btr", TRUE, LONG, op2(R, E), 0 },
418 /*b4*/ { "lfs", TRUE, LONG, op2(E, R), 0 },
419 /*b5*/ { "lgs", TRUE, LONG, op2(E, R), 0 },
420 /*b6*/ { "movzb", TRUE, LONG, op2(Eb, R), 0 },
421 /*b7*/ { "movzw", TRUE, LONG, op2(Ew, R), 0 },
422
423 /*b8*/ { "", FALSE, NONE, 0, 0 },
424 /*b9*/ { "", FALSE, NONE, 0, 0 },
425 /*ba*/ { "", TRUE, LONG, op2(Ib, E), db_Grp8 },
426 /*bb*/ { "btc", TRUE, LONG, op2(R, E), 0 },
427 /*bc*/ { "bsf", TRUE, LONG, op2(E, R), 0 },
428 /*bd*/ { "bsr", TRUE, LONG, op2(E, R), 0 },
429 /*be*/ { "movsb", TRUE, LONG, op2(Eb, R), 0 },
430 /*bf*/ { "movsw", TRUE, LONG, op2(Ew, R), 0 },
431 };
432
433 static const struct inst db_inst_0fcx[] = {
434 /*c0*/ { "xadd", TRUE, BYTE, op2(R, E), 0 },
435 /*c1*/ { "xadd", TRUE, LONG, op2(R, E), 0 },
436 /*c2*/ { "", FALSE, NONE, 0, 0 },
437 /*c3*/ { "", FALSE, NONE, 0, 0 },
438 /*c4*/ { "", FALSE, NONE, 0, 0 },
439 /*c5*/ { "", FALSE, NONE, 0, 0 },
440 /*c6*/ { "", FALSE, NONE, 0, 0 },
441 /*c7*/ { "", TRUE, NONE, op1(E), db_Grp9 },
442 /*c8*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
443 /*c9*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
444 /*ca*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
445 /*cb*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
446 /*cc*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
447 /*cd*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
448 /*ce*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
449 /*cf*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
450 };
451
452 static const struct inst * const db_inst_0f[] = {
453 db_inst_0f0x,
454 db_inst_0f1x,
455 db_inst_0f2x,
456 db_inst_0f3x,
457 db_inst_0f4x,
458 0,
459 0,
460 db_inst_0f7x,
461 db_inst_0f8x,
462 db_inst_0f9x,
463 db_inst_0fax,
464 db_inst_0fbx,
465 db_inst_0fcx,
466 0,
467 0,
468 0
469 };
470
471 static const char * const db_Esc92[] = {
472 "fnop", "", "", "", "", "", "", ""
473 };
474 static const char * const db_Esc94[] = {
475 "fchs", "fabs", "", "", "ftst", "fxam", "", ""
476 };
477 static const char * const db_Esc95[] = {
478 "fld1", "fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz",""
479 };
480 static const char * const db_Esc96[] = {
481 "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp",
482 "fincstp"
483 };
484 static const char * const db_Esc97[] = {
485 "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos"
486 };
487
488 static const char * const db_Esca5[] = {
489 "", "fucompp","", "", "", "", "", ""
490 };
491
492 static const char * const db_Escb4[] = {
493 "fneni","fndisi", "fnclex","fninit","fsetpm", "", "", ""
494 };
495
496 static const char * const db_Esce3[] = {
497 "", "fcompp","", "", "", "", "", ""
498 };
499
500 static const char * const db_Escf4[] = {
501 "fnstsw","", "", "", "", "", "", ""
502 };
503
504 static const struct finst db_Esc8[] = {
505 /**/ { "fadd", SNGL, op2(STI,ST), 0 },
506 /*1*/ { "fmul", SNGL, op2(STI,ST), 0 },
507 /*2*/ { "fcom", SNGL, op2(STI,ST), 0 },
508 /*3*/ { "fcomp", SNGL, op2(STI,ST), 0 },
509 /*4*/ { "fsub", SNGL, op2(STI,ST), 0 },
510 /*5*/ { "fsubr", SNGL, op2(STI,ST), 0 },
511 /*6*/ { "fdiv", SNGL, op2(STI,ST), 0 },
512 /*7*/ { "fdivr", SNGL, op2(STI,ST), 0 },
513 };
514
515 static const struct finst db_Esc9[] = {
516 /**/ { "fld", SNGL, op1(STI), 0 },
517 /*1*/ { "", NONE, op1(STI), "fxch" },
518 /*2*/ { "fst", SNGL, op1(X), db_Esc92 },
519 /*3*/ { "fstp", SNGL, 0, 0 },
520 /*4*/ { "fldenv", NONE, op1(X), db_Esc94 },
521 /*5*/ { "fldcw", NONE, op1(X), db_Esc95 },
522 /*6*/ { "fnstenv",NONE, op1(X), db_Esc96 },
523 /*7*/ { "fnstcw", NONE, op1(X), db_Esc97 },
524 };
525
526 static const struct finst db_Esca[] = {
527 /**/ { "fiadd", LONG, 0, 0 },
528 /*1*/ { "fimul", LONG, 0, 0 },
529 /*2*/ { "ficom", LONG, 0, 0 },
530 /*3*/ { "ficomp", LONG, 0, 0 },
531 /*4*/ { "fisub", LONG, 0, 0 },
532 /*5*/ { "fisubr", LONG, op1(X), db_Esca5 },
533 /*6*/ { "fidiv", LONG, 0, 0 },
534 /*7*/ { "fidivr", LONG, 0, 0 }
535 };
536
537 static const struct finst db_Escb[] = {
538 /**/ { "fild", LONG, 0, 0 },
539 /*1*/ { "", NONE, 0, 0 },
540 /*2*/ { "fist", LONG, 0, 0 },
541 /*3*/ { "fistp", LONG, 0, 0 },
542 /*4*/ { "", WORD, op1(X), db_Escb4 },
543 /*5*/ { "fld", EXTR, 0, 0 },
544 /*6*/ { "", WORD, 0, 0 },
545 /*7*/ { "fstp", EXTR, 0, 0 },
546 };
547
548 static const struct finst db_Escc[] = {
549 /**/ { "fadd", DBLR, op2(ST,STI), 0 },
550 /*1*/ { "fmul", DBLR, op2(ST,STI), 0 },
551 /*2*/ { "fcom", DBLR, 0, 0 },
552 /*3*/ { "fcomp", DBLR, 0, 0 },
553 /*4*/ { "fsub", DBLR, op2(ST,STI), "fsubr" },
554 /*5*/ { "fsubr", DBLR, op2(ST,STI), "fsub" },
555 /*6*/ { "fdiv", DBLR, op2(ST,STI), "fdivr" },
556 /*7*/ { "fdivr", DBLR, op2(ST,STI), "fdiv" },
557 };
558
559 static const struct finst db_Escd[] = {
560 /**/ { "fld", DBLR, op1(STI), "ffree" },
561 /*1*/ { "", NONE, 0, 0 },
562 /*2*/ { "fst", DBLR, op1(STI), 0 },
563 /*3*/ { "fstp", DBLR, op1(STI), 0 },
564 /*4*/ { "frstor", NONE, op1(STI), "fucom" },
565 /*5*/ { "", NONE, op1(STI), "fucomp" },
566 /*6*/ { "fnsave", NONE, 0, 0 },
567 /*7*/ { "fnstsw", NONE, 0, 0 },
568 };
569
570 static const struct finst db_Esce[] = {
571 /**/ { "fiadd", WORD, op2(ST,STI), "faddp" },
572 /*1*/ { "fimul", WORD, op2(ST,STI), "fmulp" },
573 /*2*/ { "ficom", WORD, 0, 0 },
574 /*3*/ { "ficomp", WORD, op1(X), db_Esce3 },
575 /*4*/ { "fisub", WORD, op2(ST,STI), "fsubrp" },
576 /*5*/ { "fisubr", WORD, op2(ST,STI), "fsubp" },
577 /*6*/ { "fidiv", WORD, op2(ST,STI), "fdivrp" },
578 /*7*/ { "fidivr", WORD, op2(ST,STI), "fdivp" },
579 };
580
581 static const struct finst db_Escf[] = {
582 /**/ { "fild", WORD, 0, 0 },
583 /*1*/ { "", NONE, 0, 0 },
584 /*2*/ { "fist", WORD, 0, 0 },
585 /*3*/ { "fistp", WORD, 0, 0 },
586 /*4*/ { "fbld", NONE, op1(XA), db_Escf4 },
587 /*5*/ { "fild", QUAD, 0, 0 },
588 /*6*/ { "fbstp", NONE, 0, 0 },
589 /*7*/ { "fistp", QUAD, 0, 0 },
590 };
591
592 static const struct finst * const db_Esc_inst[] = {
593 db_Esc8, db_Esc9, db_Esca, db_Escb,
594 db_Escc, db_Escd, db_Esce, db_Escf
595 };
596
597 static const char * const db_Grp1[] = {
598 "add",
599 "or",
600 "adc",
601 "sbb",
602 "and",
603 "sub",
604 "xor",
605 "cmp"
606 };
607
608 static const char * const db_Grp2[] = {
609 "rol",
610 "ror",
611 "rcl",
612 "rcr",
613 "shl",
614 "shr",
615 "shl",
616 "sar"
617 };
618
619 static const struct inst db_Grp3[] = {
620 { "test", TRUE, NONE, op2(I,E), 0 },
621 { "test", TRUE, NONE, op2(I,E), 0 },
622 { "not", TRUE, NONE, op1(E), 0 },
623 { "neg", TRUE, NONE, op1(E), 0 },
624 { "mul", TRUE, NONE, op2(E,A), 0 },
625 { "imul", TRUE, NONE, op2(E,A), 0 },
626 { "div", TRUE, NONE, op2(E,A), 0 },
627 { "idiv", TRUE, NONE, op2(E,A), 0 },
628 };
629
630 static const struct inst db_Grp4[] = {
631 { "inc", TRUE, BYTE, op1(E), 0 },
632 { "dec", TRUE, BYTE, op1(E), 0 },
633 { "", TRUE, NONE, 0, 0 },
634 { "", TRUE, NONE, 0, 0 },
635 { "", TRUE, NONE, 0, 0 },
636 { "", TRUE, NONE, 0, 0 },
637 { "", TRUE, NONE, 0, 0 },
638 { "", TRUE, NONE, 0, 0 }
639 };
640
641 static const struct inst db_Grp5[] = {
642 { "inc", TRUE, LONG, op1(E), 0 },
643 { "dec", TRUE, LONG, op1(E), 0 },
644 { "call", TRUE, LONG, op1(Eind),0 },
645 { "lcall", TRUE, LONG, op1(Eind),0 },
646 { "jmp", TRUE, LONG, op1(Eind),0 },
647 { "ljmp", TRUE, LONG, op1(Eind),0 },
648 { "push", TRUE, LONG, op1(E), 0 },
649 { "", TRUE, NONE, 0, 0 }
650 };
651
652 static const struct inst db_Grp9b[] = {
653 { "", TRUE, NONE, 0, 0 },
654 { "", TRUE, NONE, 0, 0 },
655 { "", TRUE, NONE, 0, 0 },
656 { "", TRUE, NONE, 0, 0 },
657 { "", TRUE, NONE, 0, 0 },
658 { "", TRUE, NONE, 0, 0 },
659 { "rdrand",TRUE, LONG, op1(Rv), 0 },
660 { "rdseed",TRUE, LONG, op1(Rv), 0 }
661 };
662
663 static const struct inst db_inst_table[256] = {
664 /*00*/ { "add", TRUE, BYTE, op2(R, E), 0 },
665 /*01*/ { "add", TRUE, LONG, op2(R, E), 0 },
666 /*02*/ { "add", TRUE, BYTE, op2(E, R), 0 },
667 /*03*/ { "add", TRUE, LONG, op2(E, R), 0 },
668 /*04*/ { "add", FALSE, BYTE, op2(I, A), 0 },
669 /*05*/ { "add", FALSE, LONG, op2(Is, A), 0 },
670 /*06*/ { "push", FALSE, NONE, op1(Si), 0 },
671 /*07*/ { "pop", FALSE, NONE, op1(Si), 0 },
672
673 /*08*/ { "or", TRUE, BYTE, op2(R, E), 0 },
674 /*09*/ { "or", TRUE, LONG, op2(R, E), 0 },
675 /*0a*/ { "or", TRUE, BYTE, op2(E, R), 0 },
676 /*0b*/ { "or", TRUE, LONG, op2(E, R), 0 },
677 /*0c*/ { "or", FALSE, BYTE, op2(I, A), 0 },
678 /*0d*/ { "or", FALSE, LONG, op2(I, A), 0 },
679 /*0e*/ { "push", FALSE, NONE, op1(Si), 0 },
680 /*0f*/ { "", FALSE, ESC, 0, db_inst_0f },
681
682 /*10*/ { "adc", TRUE, BYTE, op2(R, E), 0 },
683 /*11*/ { "adc", TRUE, LONG, op2(R, E), 0 },
684 /*12*/ { "adc", TRUE, BYTE, op2(E, R), 0 },
685 /*13*/ { "adc", TRUE, LONG, op2(E, R), 0 },
686 /*14*/ { "adc", FALSE, BYTE, op2(I, A), 0 },
687 /*15*/ { "adc", FALSE, LONG, op2(Is, A), 0 },
688 /*16*/ { "push", FALSE, NONE, op1(Si), 0 },
689 /*17*/ { "pop", FALSE, NONE, op1(Si), 0 },
690
691 /*18*/ { "sbb", TRUE, BYTE, op2(R, E), 0 },
692 /*19*/ { "sbb", TRUE, LONG, op2(R, E), 0 },
693 /*1a*/ { "sbb", TRUE, BYTE, op2(E, R), 0 },
694 /*1b*/ { "sbb", TRUE, LONG, op2(E, R), 0 },
695 /*1c*/ { "sbb", FALSE, BYTE, op2(I, A), 0 },
696 /*1d*/ { "sbb", FALSE, LONG, op2(Is, A), 0 },
697 /*1e*/ { "push", FALSE, NONE, op1(Si), 0 },
698 /*1f*/ { "pop", FALSE, NONE, op1(Si), 0 },
699
700 /*20*/ { "and", TRUE, BYTE, op2(R, E), 0 },
701 /*21*/ { "and", TRUE, LONG, op2(R, E), 0 },
702 /*22*/ { "and", TRUE, BYTE, op2(E, R), 0 },
703 /*23*/ { "and", TRUE, LONG, op2(E, R), 0 },
704 /*24*/ { "and", FALSE, BYTE, op2(I, A), 0 },
705 /*25*/ { "and", FALSE, LONG, op2(I, A), 0 },
706 /*26*/ { "", FALSE, NONE, 0, 0 },
707 /*27*/ { "daa", FALSE, NONE, 0, 0 },
708
709 /*28*/ { "sub", TRUE, BYTE, op2(R, E), 0 },
710 /*29*/ { "sub", TRUE, LONG, op2(R, E), 0 },
711 /*2a*/ { "sub", TRUE, BYTE, op2(E, R), 0 },
712 /*2b*/ { "sub", TRUE, LONG, op2(E, R), 0 },
713 /*2c*/ { "sub", FALSE, BYTE, op2(I, A), 0 },
714 /*2d*/ { "sub", FALSE, LONG, op2(Is, A), 0 },
715 /*2e*/ { "", FALSE, NONE, 0, 0 },
716 /*2f*/ { "das", FALSE, NONE, 0, 0 },
717
718 /*30*/ { "xor", TRUE, BYTE, op2(R, E), 0 },
719 /*31*/ { "xor", TRUE, LONG, op2(R, E), 0 },
720 /*32*/ { "xor", TRUE, BYTE, op2(E, R), 0 },
721 /*33*/ { "xor", TRUE, LONG, op2(E, R), 0 },
722 /*34*/ { "xor", FALSE, BYTE, op2(I, A), 0 },
723 /*35*/ { "xor", FALSE, LONG, op2(I, A), 0 },
724 /*36*/ { "", FALSE, NONE, 0, 0 },
725 /*37*/ { "aaa", FALSE, NONE, 0, 0 },
726
727 /*38*/ { "cmp", TRUE, BYTE, op2(R, E), 0 },
728 /*39*/ { "cmp", TRUE, LONG, op2(R, E), 0 },
729 /*3a*/ { "cmp", TRUE, BYTE, op2(E, R), 0 },
730 /*3b*/ { "cmp", TRUE, LONG, op2(E, R), 0 },
731 /*3c*/ { "cmp", FALSE, BYTE, op2(I, A), 0 },
732 /*3d*/ { "cmp", FALSE, LONG, op2(Is, A), 0 },
733 /*3e*/ { "", FALSE, NONE, 0, 0 },
734 /*3f*/ { "aas", FALSE, NONE, 0, 0 },
735
736 /*40*/ { "rex", FALSE, NONE, 0, 0 },
737 /*41*/ { "rex.b", FALSE, NONE, 0, 0 },
738 /*42*/ { "rex.x", FALSE, NONE, 0, 0 },
739 /*43*/ { "rex.xb", FALSE, NONE, 0, 0 },
740 /*44*/ { "rex.r", FALSE, NONE, 0, 0 },
741 /*45*/ { "rex.rb", FALSE, NONE, 0, 0 },
742 /*46*/ { "rex.rx", FALSE, NONE, 0, 0 },
743 /*47*/ { "rex.rxb", FALSE, NONE, 0, 0 },
744
745 /*48*/ { "rex.w", FALSE, NONE, 0, 0 },
746 /*49*/ { "rex.wb", FALSE, NONE, 0, 0 },
747 /*4a*/ { "rex.wx", FALSE, NONE, 0, 0 },
748 /*4b*/ { "rex.wxb", FALSE, NONE, 0, 0 },
749 /*4c*/ { "rex.wr", FALSE, NONE, 0, 0 },
750 /*4d*/ { "rex.wrb", FALSE, NONE, 0, 0 },
751 /*4e*/ { "rex.wrx", FALSE, NONE, 0, 0 },
752 /*4f*/ { "rex.wrxb", FALSE, NONE, 0, 0 },
753
754 /*50*/ { "push", FALSE, LONG, op1(Ri), 0 },
755 /*51*/ { "push", FALSE, LONG, op1(Ri), 0 },
756 /*52*/ { "push", FALSE, LONG, op1(Ri), 0 },
757 /*53*/ { "push", FALSE, LONG, op1(Ri), 0 },
758 /*54*/ { "push", FALSE, LONG, op1(Ri), 0 },
759 /*55*/ { "push", FALSE, LONG, op1(Ri), 0 },
760 /*56*/ { "push", FALSE, LONG, op1(Ri), 0 },
761 /*57*/ { "push", FALSE, LONG, op1(Ri), 0 },
762
763 /*58*/ { "pop", FALSE, LONG, op1(Ri), 0 },
764 /*59*/ { "pop", FALSE, LONG, op1(Ri), 0 },
765 /*5a*/ { "pop", FALSE, LONG, op1(Ri), 0 },
766 /*5b*/ { "pop", FALSE, LONG, op1(Ri), 0 },
767 /*5c*/ { "pop", FALSE, LONG, op1(Ri), 0 },
768 /*5d*/ { "pop", FALSE, LONG, op1(Ri), 0 },
769 /*5e*/ { "pop", FALSE, LONG, op1(Ri), 0 },
770 /*5f*/ { "pop", FALSE, LONG, op1(Ri), 0 },
771
772 /*60*/ { "pusha", FALSE, LONG, 0, 0 },
773 /*61*/ { "popa", FALSE, LONG, 0, 0 },
774 /*62*/ { "bound", TRUE, LONG, op2(E, R), 0 },
775 /*63*/ { "movslq", TRUE, NONE, op2(EL,R), 0 },
776
777 /*64*/ { "", FALSE, NONE, 0, 0 },
778 /*65*/ { "", FALSE, NONE, 0, 0 },
779 /*66*/ { "", FALSE, NONE, 0, 0 },
780 /*67*/ { "", FALSE, NONE, 0, 0 },
781
782 /*68*/ { "push", FALSE, LONG, op1(I), 0 },
783 /*69*/ { "imul", TRUE, LONG, op3(I,E,R), 0 },
784 /*6a*/ { "push", FALSE, LONG, op1(Ibs), 0 },
785 /*6b*/ { "imul", TRUE, LONG, op3(Ibs,E,R),0 },
786 /*6c*/ { "ins", FALSE, BYTE, op2(DX, DI), 0 },
787 /*6d*/ { "ins", FALSE, LONG, op2(DX, DI), 0 },
788 /*6e*/ { "outs", FALSE, BYTE, op2(SI, DX), 0 },
789 /*6f*/ { "outs", FALSE, LONG, op2(SI, DX), 0 },
790
791 /*70*/ { "jo", FALSE, NONE, op1(Db), 0 },
792 /*71*/ { "jno", FALSE, NONE, op1(Db), 0 },
793 /*72*/ { "jb", FALSE, NONE, op1(Db), 0 },
794 /*73*/ { "jnb", FALSE, NONE, op1(Db), 0 },
795 /*74*/ { "jz", FALSE, NONE, op1(Db), 0 },
796 /*75*/ { "jnz", FALSE, NONE, op1(Db), 0 },
797 /*76*/ { "jbe", FALSE, NONE, op1(Db), 0 },
798 /*77*/ { "jnbe", FALSE, NONE, op1(Db), 0 },
799
800 /*78*/ { "js", FALSE, NONE, op1(Db), 0 },
801 /*79*/ { "jns", FALSE, NONE, op1(Db), 0 },
802 /*7a*/ { "jp", FALSE, NONE, op1(Db), 0 },
803 /*7b*/ { "jnp", FALSE, NONE, op1(Db), 0 },
804 /*7c*/ { "jl", FALSE, NONE, op1(Db), 0 },
805 /*7d*/ { "jnl", FALSE, NONE, op1(Db), 0 },
806 /*7e*/ { "jle", FALSE, NONE, op1(Db), 0 },
807 /*7f*/ { "jnle", FALSE, NONE, op1(Db), 0 },
808
809 /*80*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 },
810 /*81*/ { "", TRUE, LONG, op2(I, E), db_Grp1 },
811 /*82*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 },
812 /*83*/ { "", TRUE, LONG, op2(Ibs,E), db_Grp1 },
813 /*84*/ { "test", TRUE, BYTE, op2(R, E), 0 },
814 /*85*/ { "test", TRUE, LONG, op2(R, E), 0 },
815 /*86*/ { "xchg", TRUE, BYTE, op2(R, E), 0 },
816 /*87*/ { "xchg", TRUE, LONG, op2(R, E), 0 },
817
818 /*88*/ { "mov", TRUE, BYTE, op2(R, E), 0 },
819 /*89*/ { "mov", TRUE, LONG, op2(R, E), 0 },
820 /*8a*/ { "mov", TRUE, BYTE, op2(E, R), 0 },
821 /*8b*/ { "mov", TRUE, LONG, op2(E, R), 0 },
822 /*8c*/ { "mov", TRUE, NONE, op2(S, Ew), 0 },
823 /*8d*/ { "lea", TRUE, LONG, op2(E, R), 0 },
824 /*8e*/ { "mov", TRUE, NONE, op2(Ew, S), 0 },
825 /*8f*/ { "pop", TRUE, LONG, op1(E), 0 },
826
827 /*90*/ { "nop", FALSE, NONE, 0, 0 },
828 /*91*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
829 /*92*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
830 /*93*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
831 /*94*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
832 /*95*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
833 /*96*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
834 /*97*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
835
836 /*98*/ { "cwde", FALSE, SDEP, 0, "cbw" },
837 /*99*/ { "cdq", FALSE, SDEP, 0, "cwd" },
838 /*9a*/ { "lcall", FALSE, NONE, op1(OS), 0 },
839 /*9b*/ { "wait", FALSE, NONE, 0, 0 },
840 /*9c*/ { "pushf", FALSE, LONG, 0, 0 },
841 /*9d*/ { "popf", FALSE, LONG, 0, 0 },
842 /*9e*/ { "sahf", FALSE, NONE, 0, 0 },
843 /*9f*/ { "lahf", FALSE, NONE, 0, 0 },
844
845 /*a0*/ { "mov", FALSE, BYTE, op2(O, A), 0 },
846 /*a1*/ { "mov", FALSE, LONG, op2(O, A), 0 },
847 /*a2*/ { "mov", FALSE, BYTE, op2(A, O), 0 },
848 /*a3*/ { "mov", FALSE, LONG, op2(A, O), 0 },
849 /*a4*/ { "movs", FALSE, BYTE, op2(SI,DI), 0 },
850 /*a5*/ { "movs", FALSE, LONG, op2(SI,DI), 0 },
851 /*a6*/ { "cmps", FALSE, BYTE, op2(SI,DI), 0 },
852 /*a7*/ { "cmps", FALSE, LONG, op2(SI,DI), 0 },
853
854 /*a8*/ { "test", FALSE, BYTE, op2(I, A), 0 },
855 /*a9*/ { "test", FALSE, LONG, op2(I, A), 0 },
856 /*aa*/ { "stos", FALSE, BYTE, op1(DI), 0 },
857 /*ab*/ { "stos", FALSE, LONG, op1(DI), 0 },
858 /*ac*/ { "lods", FALSE, BYTE, op1(SI), 0 },
859 /*ad*/ { "lods", FALSE, LONG, op1(SI), 0 },
860 /*ae*/ { "scas", FALSE, BYTE, op1(SI), 0 },
861 /*af*/ { "scas", FALSE, LONG, op1(SI), 0 },
862
863 /*b0*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
864 /*b1*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
865 /*b2*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
866 /*b3*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
867 /*b4*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
868 /*b5*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
869 /*b6*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
870 /*b7*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
871
872 /*b8*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
873 /*b9*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
874 /*ba*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
875 /*bb*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
876 /*bc*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
877 /*bd*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
878 /*be*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
879 /*bf*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
880
881 /*c0*/ { "", TRUE, BYTE, op2(Ib, E), db_Grp2 },
882 /*c1*/ { "", TRUE, LONG, op2(Ib, E), db_Grp2 },
883 /*c2*/ { "ret", FALSE, NONE, op1(Iw), 0 },
884 /*c3*/ { "ret", FALSE, NONE, 0, 0 },
885 /*c4*/ { "les", TRUE, LONG, op2(E, R), 0 },
886 /*c5*/ { "lds", TRUE, LONG, op2(E, R), 0 },
887 /*c6*/ { "mov", TRUE, BYTE, op2(I, E), 0 },
888 /*c7*/ { "mov", TRUE, LONG, op2(I, E), 0 },
889
890 /*c8*/ { "enter", FALSE, NONE, op2(Iw, Ib), 0 },
891 /*c9*/ { "leave", FALSE, NONE, 0, 0 },
892 /*ca*/ { "lret", FALSE, NONE, op1(Iw), 0 },
893 /*cb*/ { "lret", FALSE, NONE, 0, 0 },
894 /*cc*/ { "int", FALSE, NONE, op1(o3), 0 },
895 /*cd*/ { "int", FALSE, NONE, op1(Ib), 0 },
896 /*ce*/ { "into", FALSE, NONE, 0, 0 },
897 /*cf*/ { "iret", FALSE, NONE, 0, 0 },
898
899 /*d0*/ { "", TRUE, BYTE, op2(o1, E), db_Grp2 },
900 /*d1*/ { "", TRUE, LONG, op2(o1, E), db_Grp2 },
901 /*d2*/ { "", TRUE, BYTE, op2(CL, E), db_Grp2 },
902 /*d3*/ { "", TRUE, LONG, op2(CL, E), db_Grp2 },
903 /*d4*/ { "aam", FALSE, NONE, op1(Iba), 0 },
904 /*d5*/ { "aad", FALSE, NONE, op1(Iba), 0 },
905 /*d6*/ { ".byte\t0xd6", FALSE, NONE, 0, 0 },
906 /*d7*/ { "xlat", FALSE, BYTE, op1(BX), 0 },
907
908 /*d8*/ { "", TRUE, NONE, 0, db_Esc8 },
909 /*d9*/ { "", TRUE, NONE, 0, db_Esc9 },
910 /*da*/ { "", TRUE, NONE, 0, db_Esca },
911 /*db*/ { "", TRUE, NONE, 0, db_Escb },
912 /*dc*/ { "", TRUE, NONE, 0, db_Escc },
913 /*dd*/ { "", TRUE, NONE, 0, db_Escd },
914 /*de*/ { "", TRUE, NONE, 0, db_Esce },
915 /*df*/ { "", TRUE, NONE, 0, db_Escf },
916
917 /*e0*/ { "loopne",FALSE, NONE, op1(Db), 0 },
918 /*e1*/ { "loope", FALSE, NONE, op1(Db), 0 },
919 /*e2*/ { "loop", FALSE, NONE, op1(Db), 0 },
920 /*e3*/ { "jrcxz", FALSE, ADEP, op1(Db), "jecxz" },
921 /*e4*/ { "in", FALSE, BYTE, op2(Ib, A), 0 },
922 /*e5*/ { "in", FALSE, LONG, op2(Ib, A) , 0 },
923 /*e6*/ { "out", FALSE, BYTE, op2(A, Ib), 0 },
924 /*e7*/ { "out", FALSE, LONG, op2(A, Ib) , 0 },
925
926 /*e8*/ { "call", FALSE, NONE, op1(Dl), 0 },
927 /*e9*/ { "jmp", FALSE, NONE, op1(Dl), 0 },
928 /*ea*/ { "ljmp", FALSE, NONE, op1(OS), 0 },
929 /*eb*/ { "jmp", FALSE, NONE, op1(Db), 0 },
930 /*ec*/ { "in", FALSE, BYTE, op2(DX, A), 0 },
931 /*ed*/ { "in", FALSE, LONG, op2(DX, A) , 0 },
932 /*ee*/ { "out", FALSE, BYTE, op2(A, DX), 0 },
933 /*ef*/ { "out", FALSE, LONG, op2(A, DX) , 0 },
934
935 /*f0*/ { "", FALSE, NONE, 0, 0 },
936 /*f1*/ { ".byte\t0xf1", FALSE, NONE, 0, 0 },
937 /*f2*/ { "", FALSE, NONE, 0, 0 },
938 /*f3*/ { "", FALSE, NONE, 0, 0 },
939 /*f4*/ { "hlt", FALSE, NONE, 0, 0 },
940 /*f5*/ { "cmc", FALSE, NONE, 0, 0 },
941 /*f6*/ { "", TRUE, BYTE, 0, db_Grp3 },
942 /*f7*/ { "", TRUE, LONG, 0, db_Grp3 },
943
944 /*f8*/ { "clc", FALSE, NONE, 0, 0 },
945 /*f9*/ { "stc", FALSE, NONE, 0, 0 },
946 /*fa*/ { "cli", FALSE, NONE, 0, 0 },
947 /*fb*/ { "sti", FALSE, NONE, 0, 0 },
948 /*fc*/ { "cld", FALSE, NONE, 0, 0 },
949 /*fd*/ { "std", FALSE, NONE, 0, 0 },
950 /*fe*/ { "", TRUE, NONE, 0, db_Grp4 },
951 /*ff*/ { "", TRUE, NONE, 0, db_Grp5 },
952 };
953
954 static const struct inst db_bad_inst =
955 { "???", FALSE, NONE, 0, 0 }
956 ;
957
958 #define f_mod(rex, byte) ((byte)>>6)
959 #define f_reg(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_R ? 0x8 : 0x0))
960 #define f_rm(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0))
961
962 #define sib_ss(rex, byte) ((byte)>>6)
963 #define sib_index(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_X ? 0x8 : 0x0))
964 #define sib_base(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0))
965
966 struct i_addr {
967 int is_reg; /* if reg, reg number is in 'disp' */
968 int disp;
969 const char * base;
970 const char * index;
971 int ss;
972 };
973
974 static const char * const db_reg[2][4][16] = {
975
976 {{"%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh",
977 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" },
978 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
979 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" },
980 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
981 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" },
982 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
983 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }},
984
985 {{"%al", "%cl", "%dl", "%bl", "%spl", "%bpl", "%sil", "%dil",
986 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" },
987 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
988 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" },
989 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
990 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" },
991 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
992 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }}
993 };
994
995 static const char * const db_seg_reg[8] = {
996 "%es", "%cs", "%ss", "%ds", "%fs", "%gs", "", ""
997 };
998
999 /*
1000 * lengths for size attributes
1001 */
1002 static const int db_lengths[] = {
1003 1, /* BYTE */
1004 2, /* WORD */
1005 4, /* LONG */
1006 8, /* QUAD */
1007 4, /* SNGL */
1008 8, /* DBLR */
1009 10, /* EXTR */
1010 };
1011
1012 #define get_value_inc(result, loc, size, is_signed) \
1013 result = db_get_value((loc), (size), (is_signed)); \
1014 (loc) += (size);
1015
1016 static db_addr_t
1017 db_disasm_esc(db_addr_t loc, int inst, int rex, int short_addr,
1018 int size, const char *seg);
1019 static void db_print_address(const char *seg, int size, int rex,
1020 struct i_addr *addrp);
1021 static db_addr_t
1022 db_read_address(db_addr_t loc, int short_addr, int rex, int regmodrm,
1023 struct i_addr *addrp);
1024
1025 /*
1026 * Read address at location and return updated location.
1027 */
1028 static db_addr_t
1029 db_read_address(loc, short_addr, rex, regmodrm, addrp)
1030 db_addr_t loc;
1031 int short_addr;
1032 int rex;
1033 int regmodrm;
1034 struct i_addr * addrp; /* out */
1035 {
1036 int mod, rm, sib, index, disp, size, have_sib;
1037
1038 mod = f_mod(rex, regmodrm);
1039 rm = f_rm(rex, regmodrm);
1040
1041 if (mod == 3) {
1042 addrp->is_reg = TRUE;
1043 addrp->disp = rm;
1044 return (loc);
1045 }
1046 addrp->is_reg = FALSE;
1047 addrp->index = NULL;
1048
1049 if (short_addr)
1050 size = LONG;
1051 else
1052 size = QUAD;
1053
1054 if ((rm & 0x7) == 4) {
1055 get_value_inc(sib, loc, 1, FALSE);
1056 rm = sib_base(rex, sib);
1057 index = sib_index(rex, sib);
1058 if (index != 4)
1059 addrp->index = db_reg[1][size][index];
1060 addrp->ss = sib_ss(rex, sib);
1061 have_sib = 1;
1062 } else
1063 have_sib = 0;
1064
1065 switch (mod) {
1066 case 0:
1067 if (rm == 5) {
1068 get_value_inc(addrp->disp, loc, 4, FALSE);
1069 if (have_sib)
1070 addrp->base = NULL;
1071 else if (short_addr)
1072 addrp->base = "%eip";
1073 else
1074 addrp->base = "%rip";
1075 } else {
1076 addrp->disp = 0;
1077 addrp->base = db_reg[1][size][rm];
1078 }
1079 break;
1080
1081 case 1:
1082 get_value_inc(disp, loc, 1, TRUE);
1083 addrp->disp = disp;
1084 addrp->base = db_reg[1][size][rm];
1085 break;
1086
1087 case 2:
1088 get_value_inc(disp, loc, 4, FALSE);
1089 addrp->disp = disp;
1090 addrp->base = db_reg[1][size][rm];
1091 break;
1092 }
1093 return (loc);
1094 }
1095
1096 static void
1097 db_print_address(seg, size, rex, addrp)
1098 const char * seg;
1099 int size;
1100 int rex;
1101 struct i_addr * addrp;
1102 {
1103 if (addrp->is_reg) {
1104 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][addrp->disp]);
1105 return;
1106 }
1107
1108 if (seg) {
1109 db_printf("%s:", seg);
1110 }
1111
1112 if (addrp->disp != 0 || (addrp->base == NULL && addrp->index == NULL))
1113 db_printsym((db_addr_t)addrp->disp, DB_STGY_ANY);
1114 if (addrp->base != NULL || addrp->index != NULL) {
1115 db_printf("(");
1116 if (addrp->base)
1117 db_printf("%s", addrp->base);
1118 if (addrp->index)
1119 db_printf(",%s,%d", addrp->index, 1<<addrp->ss);
1120 db_printf(")");
1121 }
1122 }
1123
1124 /*
1125 * Disassemble floating-point ("escape") instruction
1126 * and return updated location.
1127 */
1128 static db_addr_t
1129 db_disasm_esc(loc, inst, rex, short_addr, size, seg)
1130 db_addr_t loc;
1131 int inst;
1132 int rex;
1133 int short_addr;
1134 int size;
1135 const char * seg;
1136 {
1137 int regmodrm;
1138 const struct finst * fp;
1139 int mod;
1140 struct i_addr address;
1141 const char * name;
1142
1143 get_value_inc(regmodrm, loc, 1, FALSE);
1144 fp = &db_Esc_inst[inst - 0xd8][f_reg(rex, regmodrm)];
1145 mod = f_mod(rex, regmodrm);
1146 if (mod != 3) {
1147 if (*fp->f_name == '\0') {
1148 db_printf("<bad instruction>");
1149 return (loc);
1150 }
1151 /*
1152 * Normal address modes.
1153 */
1154 loc = db_read_address(loc, short_addr, rex, regmodrm, &address);
1155 db_printf("%s", fp->f_name);
1156 switch(fp->f_size) {
1157 case SNGL:
1158 db_printf("s");
1159 break;
1160 case DBLR:
1161 db_printf("l");
1162 break;
1163 case EXTR:
1164 db_printf("t");
1165 break;
1166 case WORD:
1167 db_printf("s");
1168 break;
1169 case LONG:
1170 db_printf("l");
1171 break;
1172 case QUAD:
1173 db_printf("q");
1174 break;
1175 default:
1176 break;
1177 }
1178 db_printf("\t");
1179 db_print_address(seg, BYTE, rex, &address);
1180 }
1181 else {
1182 /*
1183 * 'reg-reg' - special formats
1184 */
1185 switch (fp->f_rrmode) {
1186 case op2(ST,STI):
1187 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1188 db_printf("%s\t%%st,%%st(%d)",name,f_rm(rex, regmodrm));
1189 break;
1190 case op2(STI,ST):
1191 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1192 db_printf("%s\t%%st(%d),%%st",name, f_rm(rex, regmodrm));
1193 break;
1194 case op1(STI):
1195 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1196 db_printf("%s\t%%st(%d)",name, f_rm(rex, regmodrm));
1197 break;
1198 case op1(X):
1199 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)];
1200 if (*name == '\0')
1201 goto bad;
1202 db_printf("%s", name);
1203 break;
1204 case op1(XA):
1205 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)];
1206 if (*name == '\0')
1207 goto bad;
1208 db_printf("%s\t%%ax", name);
1209 break;
1210 default:
1211 bad:
1212 db_printf("<bad instruction>");
1213 break;
1214 }
1215 }
1216
1217 return (loc);
1218 }
1219
1220 /*
1221 * Disassemble instruction at 'loc'. 'altfmt' specifies an
1222 * (optional) alternate format. Return address of start of
1223 * next instruction.
1224 */
1225 db_addr_t
1226 db_disasm(db_addr_t loc, bool altfmt)
1227 {
1228 int inst;
1229 int size;
1230 int short_addr;
1231 const char * seg;
1232 const struct inst * ip;
1233 const char * i_name;
1234 int i_size;
1235 int i_mode;
1236 int rex = 0;
1237 int regmodrm = 0;
1238 boolean_t first;
1239 int displ;
1240 int prefix;
1241 int rep;
1242 int imm;
1243 int imm2;
1244 long imm64;
1245 int len;
1246 struct i_addr address;
1247
1248 get_value_inc(inst, loc, 1, FALSE);
1249 short_addr = FALSE;
1250 size = LONG;
1251 seg = NULL;
1252
1253 /*
1254 * Get prefixes
1255 */
1256 rep = FALSE;
1257 prefix = TRUE;
1258 do {
1259 switch (inst) {
1260 case 0x66: /* data16 */
1261 size = WORD;
1262 break;
1263 case 0x67:
1264 short_addr = TRUE;
1265 break;
1266 case 0x26:
1267 seg = "%es";
1268 break;
1269 case 0x36:
1270 seg = "%ss";
1271 break;
1272 case 0x2e:
1273 seg = "%cs";
1274 break;
1275 case 0x3e:
1276 seg = "%ds";
1277 break;
1278 case 0x64:
1279 seg = "%fs";
1280 break;
1281 case 0x65:
1282 seg = "%gs";
1283 break;
1284 case 0xf0:
1285 db_printf("lock ");
1286 break;
1287 case 0xf2:
1288 db_printf("repne ");
1289 break;
1290 case 0xf3:
1291 rep = TRUE;
1292 break;
1293 default:
1294 prefix = FALSE;
1295 break;
1296 }
1297 if (inst >= 0x40 && inst < 0x50) {
1298 rex = inst;
1299 prefix = TRUE;
1300 }
1301 if (prefix) {
1302 get_value_inc(inst, loc, 1, FALSE);
1303 }
1304 } while (prefix);
1305
1306 if (inst >= 0xd8 && inst <= 0xdf) {
1307 loc = db_disasm_esc(loc, inst, rex, short_addr, size, seg);
1308 db_printf("\n");
1309 return (loc);
1310 }
1311
1312 ip = &db_inst_table[inst];
1313 while (ip->i_size == ESC) {
1314 get_value_inc(inst, loc, 1, FALSE);
1315 ip = ((const struct inst * const *)ip->i_extra)[inst>>4];
1316 if (ip == NULL) {
1317 ip = &db_bad_inst;
1318 }
1319 else {
1320 ip = &ip[inst&0xf];
1321 }
1322 }
1323
1324 if (ip->i_has_modrm) {
1325 get_value_inc(regmodrm, loc, 1, FALSE);
1326 loc = db_read_address(loc, short_addr, rex, regmodrm, &address);
1327 }
1328
1329 i_name = ip->i_name;
1330 i_size = ip->i_size;
1331 i_mode = ip->i_mode;
1332
1333 if (ip->i_extra == db_Grp9 && f_mod(rex, regmodrm) == 3) {
1334 ip = &db_Grp9b[f_reg(rex, regmodrm)];
1335 i_name = ip->i_name;
1336 i_size = ip->i_size;
1337 i_mode = ip->i_mode;
1338 }
1339 else if (ip->i_extra == db_Grp1 || ip->i_extra == db_Grp2 ||
1340 ip->i_extra == db_Grp6 || ip->i_extra == db_Grp7 ||
1341 ip->i_extra == db_Grp8 || ip->i_extra == db_Grp9 ||
1342 ip->i_extra == db_Grp15) {
1343 i_name = ((const char * const *)ip->i_extra)[f_reg(rex, regmodrm)];
1344 }
1345 else if (ip->i_extra == db_Grp3) {
1346 ip = ip->i_extra;
1347 ip = &ip[f_reg(rex, regmodrm)];
1348 i_name = ip->i_name;
1349 i_mode = ip->i_mode;
1350 }
1351 else if (ip->i_extra == db_Grp4 || ip->i_extra == db_Grp5) {
1352 ip = ip->i_extra;
1353 ip = &ip[f_reg(rex, regmodrm)];
1354 i_name = ip->i_name;
1355 i_mode = ip->i_mode;
1356 i_size = ip->i_size;
1357 }
1358
1359 /* Special cases that don't fit well in the tables. */
1360 if (ip->i_extra == db_Grp7 && f_mod(rex, regmodrm) == 3) {
1361 switch (regmodrm) {
1362 case 0xc1:
1363 i_name = "vmcall";
1364 i_size = NONE;
1365 i_mode = 0;
1366 break;
1367 case 0xc2:
1368 i_name = "vmlaunch";
1369 i_size = NONE;
1370 i_mode = 0;
1371 break;
1372 case 0xc3:
1373 i_name = "vmresume";
1374 i_size = NONE;
1375 i_mode = 0;
1376 break;
1377 case 0xc4:
1378 i_name = "vmxoff";
1379 i_size = NONE;
1380 i_mode = 0;
1381 break;
1382 case 0xc8:
1383 i_name = "monitor";
1384 i_size = NONE;
1385 i_mode = 0;
1386 break;
1387 case 0xc9:
1388 i_name = "mwait";
1389 i_size = NONE;
1390 i_mode = 0;
1391 break;
1392 case 0xca:
1393 i_name = "clac";
1394 i_size = NONE;
1395 i_mode = 0;
1396 break;
1397 case 0xcb:
1398 i_name = "stac";
1399 i_size = NONE;
1400 i_mode = 0;
1401 break;
1402 case 0xd0:
1403 i_name = "xgetbv";
1404 i_size = NONE;
1405 i_mode = 0;
1406 break;
1407 case 0xd1:
1408 i_name = "xsetbv";
1409 i_size = NONE;
1410 i_mode = 0;
1411 break;
1412 case 0xd8:
1413 i_name = "vmrun";
1414 i_size = NONE;
1415 i_mode = 0;
1416 break;
1417 case 0xd9:
1418 i_name = "vmmcall";
1419 i_size = NONE;
1420 i_mode = 0;
1421 break;
1422 case 0xda:
1423 i_name = "vmload";
1424 i_size = NONE;
1425 i_mode = 0;
1426 break;
1427 case 0xdb:
1428 i_name = "vmsave";
1429 i_size = NONE;
1430 i_mode = 0;
1431 break;
1432 case 0xdc:
1433 i_name = "stgi";
1434 i_size = NONE;
1435 i_mode = 0;
1436 break;
1437 case 0xdd:
1438 i_name = "clgi";
1439 i_size = NONE;
1440 i_mode = 0;
1441 break;
1442 case 0xde:
1443 i_name = "skinit";
1444 i_size = NONE;
1445 i_mode = 0;
1446 break;
1447 case 0xdf:
1448 i_name = "invlpga";
1449 i_size = NONE;
1450 i_mode = 0;
1451 break;
1452 case 0xf8:
1453 i_name = "swapgs";
1454 i_size = NONE;
1455 i_mode = 0;
1456 break;
1457 case 0xf9:
1458 i_name = "rdtscp";
1459 i_size = NONE;
1460 i_mode = 0;
1461 break;
1462 }
1463 }
1464 if (ip->i_extra == db_Grp15 && f_mod(rex, regmodrm) == 3) {
1465 i_name = db_Grp15b[f_reg(rex, regmodrm)];
1466 i_size = NONE;
1467 i_mode = 0;
1468 }
1469
1470 /* Handle instructions identified by mandatory prefixes. */
1471 if (rep == TRUE) {
1472 if (inst == 0x90) {
1473 i_name = "pause";
1474 i_size = NONE;
1475 i_mode = 0;
1476 rep = FALSE;
1477 } else if (ip->i_extra == db_Grp9 && f_mod(rex, regmodrm) != 3 &&
1478 f_reg(rex, regmodrm) == 0x6) {
1479 i_name = "vmxon";
1480 rep = FALSE;
1481 }
1482 }
1483 if (size == WORD) {
1484 if (ip->i_extra == db_Grp9 && f_mod(rex, regmodrm) != 3 &&
1485 f_reg(rex, regmodrm) == 0x6) {
1486 i_name = "vmclear";
1487 }
1488 }
1489 if (rex & REX_W) {
1490 if (strcmp(i_name, "cwde") == 0)
1491 i_name = "cdqe";
1492 else if (strcmp(i_name, "cmpxchg8b") == 0)
1493 i_name = "cmpxchg16b";
1494 }
1495
1496 if (rep == TRUE)
1497 db_printf("repe "); /* XXX repe VS rep */
1498
1499 if (i_size == SDEP) {
1500 if (size == LONG)
1501 db_printf("%s", i_name);
1502 else
1503 db_printf("%s", (const char *)ip->i_extra);
1504 } else if (i_size == ADEP) {
1505 if (short_addr == FALSE)
1506 db_printf("%s", i_name);
1507 else
1508 db_printf("%s", (const char *)ip->i_extra);
1509 }
1510 else {
1511 db_printf("%s", i_name);
1512 if ((inst >= 0x50 && inst <= 0x5f) || inst == 0x68 || inst == 0x6a) {
1513 i_size = NONE;
1514 db_printf("q");
1515 }
1516 if (i_size != NONE) {
1517 if (i_size == BYTE) {
1518 db_printf("b");
1519 size = BYTE;
1520 }
1521 else if (i_size == WORD) {
1522 db_printf("w");
1523 size = WORD;
1524 }
1525 else if (size == WORD)
1526 db_printf("w");
1527 else {
1528 if (rex & REX_W)
1529 db_printf("q");
1530 else
1531 db_printf("l");
1532 }
1533 }
1534 }
1535 db_printf("\t");
1536 for (first = TRUE;
1537 i_mode != 0;
1538 i_mode >>= 8, first = FALSE)
1539 {
1540 if (!first)
1541 db_printf(",");
1542
1543 switch (i_mode & 0xFF) {
1544
1545 case E:
1546 db_print_address(seg, size, rex, &address);
1547 break;
1548
1549 case Eind:
1550 db_printf("*");
1551 db_print_address(seg, size, rex, &address);
1552 break;
1553
1554 case El:
1555 db_print_address(seg, (rex & REX_W) ? QUAD : LONG, rex, &address);
1556 break;
1557
1558 case EL:
1559 db_print_address(seg, LONG, 0, &address);
1560 break;
1561
1562 case Ew:
1563 db_print_address(seg, WORD, rex, &address);
1564 break;
1565
1566 case Eb:
1567 db_print_address(seg, BYTE, rex, &address);
1568 break;
1569
1570 case R:
1571 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][f_reg(rex, regmodrm)]);
1572 break;
1573
1574 case Rw:
1575 db_printf("%s", db_reg[rex != 0 ? 1 : 0][WORD][f_reg(rex, regmodrm)]);
1576 break;
1577
1578 case Rq:
1579 db_printf("%s", db_reg[rex != 0 ? 1 : 0][QUAD][f_reg(rex, regmodrm)]);
1580 break;
1581
1582 case Ri:
1583 db_printf("%s", db_reg[0][QUAD][f_rm(rex, inst)]);
1584 break;
1585
1586 case Ril:
1587 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(rex & REX_R) ? QUAD : LONG][f_rm(rex, inst)]);
1588 break;
1589
1590 case Rv:
1591 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][f_rm(rex, regmodrm)]);
1592 break;
1593
1594 case S:
1595 db_printf("%s", db_seg_reg[f_reg(rex, regmodrm)]);
1596 break;
1597
1598 case Si:
1599 db_printf("%s", db_seg_reg[f_reg(rex, inst)]);
1600 break;
1601
1602 case A:
1603 db_printf("%s", db_reg[rex != 0 ? 1 : 0][size][0]); /* acc */
1604 break;
1605
1606 case BX:
1607 if (seg)
1608 db_printf("%s:", seg);
1609 db_printf("(%s)", short_addr ? "%bx" : "%ebx");
1610 break;
1611
1612 case CL:
1613 db_printf("%%cl");
1614 break;
1615
1616 case DX:
1617 db_printf("%%dx");
1618 break;
1619
1620 case SI:
1621 if (seg)
1622 db_printf("%s:", seg);
1623 db_printf("(%s)", short_addr ? "%si" : "%rsi");
1624 break;
1625
1626 case DI:
1627 db_printf("%%es:(%s)", short_addr ? "%di" : "%rdi");
1628 break;
1629
1630 case CR:
1631 db_printf("%%cr%d", f_reg(rex, regmodrm));
1632 break;
1633
1634 case DR:
1635 db_printf("%%dr%d", f_reg(rex, regmodrm));
1636 break;
1637
1638 case TR:
1639 db_printf("%%tr%d", f_reg(rex, regmodrm));
1640 break;
1641
1642 case I:
1643 len = db_lengths[size];
1644 get_value_inc(imm, loc, len, FALSE);
1645 db_printf("$%#r", imm);
1646 break;
1647
1648 case Is:
1649 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size];
1650 get_value_inc(imm, loc, len, FALSE);
1651 db_printf("$%+#r", imm);
1652 break;
1653
1654 case Ib:
1655 get_value_inc(imm, loc, 1, FALSE);
1656 db_printf("$%#r", imm);
1657 break;
1658
1659 case Iba:
1660 get_value_inc(imm, loc, 1, FALSE);
1661 if (imm != 0x0a)
1662 db_printf("$%#r", imm);
1663 break;
1664
1665 case Ibs:
1666 get_value_inc(imm, loc, 1, TRUE);
1667 if (size == WORD)
1668 imm &= 0xFFFF;
1669 db_printf("$%+#r", imm);
1670 break;
1671
1672 case Iw:
1673 get_value_inc(imm, loc, 2, FALSE);
1674 db_printf("$%#r", imm);
1675 break;
1676
1677 case Ilq:
1678 len = db_lengths[rex & REX_W ? QUAD : LONG];
1679 get_value_inc(imm64, loc, len, FALSE);
1680 db_printf("$%#lr", imm64);
1681 break;
1682
1683 case O:
1684 len = (short_addr ? 2 : 4);
1685 get_value_inc(displ, loc, len, FALSE);
1686 if (seg)
1687 db_printf("%s:%+#r",seg, displ);
1688 else
1689 db_printsym((db_addr_t)displ, DB_STGY_ANY);
1690 break;
1691
1692 case Db:
1693 get_value_inc(displ, loc, 1, TRUE);
1694 displ += loc;
1695 if (size == WORD)
1696 displ &= 0xFFFF;
1697 db_printsym((db_addr_t)displ, DB_STGY_XTRN);
1698 break;
1699
1700 case Dl:
1701 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size];
1702 get_value_inc(displ, loc, len, FALSE);
1703 displ += loc;
1704 if (size == WORD)
1705 displ &= 0xFFFF;
1706 db_printsym((db_addr_t)displ, DB_STGY_XTRN);
1707 break;
1708
1709 case o1:
1710 db_printf("$1");
1711 break;
1712
1713 case o3:
1714 db_printf("$3");
1715 break;
1716
1717 case OS:
1718 len = db_lengths[size];
1719 get_value_inc(imm, loc, len, FALSE); /* offset */
1720 get_value_inc(imm2, loc, 2, FALSE); /* segment */
1721 db_printf("$%#r,%#r", imm2, imm);
1722 break;
1723 }
1724 }
1725 db_printf("\n");
1726 return (loc);
1727 }
Cache object: 4c4b16d789d68f6ab330fa166faf14ac
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