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 Ri 7 /* register in instruction */
75 #define S 8 /* segment reg, in 'reg' field */
76 #define Si 9 /* segment reg, in instruction */
77 #define A 10 /* accumulator */
78 #define BX 11 /* (bx) */
79 #define CL 12 /* cl, for shifts */
80 #define DX 13 /* dx, for IO */
81 #define SI 14 /* si */
82 #define DI 15 /* di */
83 #define CR 16 /* control register */
84 #define DR 17 /* debug register */
85 #define TR 18 /* test register */
86 #define I 19 /* immediate, unsigned */
87 #define Is 20 /* immediate, signed */
88 #define Ib 21 /* byte immediate, unsigned */
89 #define Ibs 22 /* byte immediate, signed */
90 #define Iw 23 /* word immediate, unsigned */
91 #define Ilq 24 /* long/quad immediate, unsigned */
92 #define O 25 /* direct address */
93 #define Db 26 /* byte displacement from EIP */
94 #define Dl 27 /* long displacement from EIP */
95 #define o1 28 /* constant 1 */
96 #define o3 29 /* constant 3 */
97 #define OS 30 /* immediate offset/segment */
98 #define ST 31 /* FP stack top */
99 #define STI 32 /* FP stack */
100 #define X 33 /* extended FP op */
101 #define XA 34 /* for 'fstcw %ax' */
102 #define El 35 /* address, long/quad size */
103 #define Ril 36 /* long register in instruction */
104 #define Iba 37 /* byte immediate, don't print if 0xa */
105 #define EL 38 /* address, explicitly long size */
106
107 struct inst {
108 const char * i_name; /* name */
109 short i_has_modrm; /* has regmodrm byte */
110 short i_size; /* operand size */
111 int i_mode; /* addressing modes */
112 const void * i_extra; /* pointer to extra opcode table */
113 };
114
115 #define op1(x) (x)
116 #define op2(x,y) ((x)|((y)<<8))
117 #define op3(x,y,z) ((x)|((y)<<8)|((z)<<16))
118
119 struct finst {
120 const char * f_name; /* name for memory instruction */
121 int f_size; /* size for memory instruction */
122 int f_rrmode; /* mode for rr instruction */
123 const void * f_rrname; /* name for rr instruction
124 (or pointer to table) */
125 };
126
127 static const struct inst db_inst_0f388x[] = {
128 /*80*/ { "", TRUE, SDEP, op2(E, Rq), "invept" },
129 /*81*/ { "", TRUE, SDEP, op2(E, Rq), "invvpid" },
130 /*82*/ { "", TRUE, SDEP, op2(E, Rq), "invpcid" },
131 /*83*/ { "", FALSE, NONE, 0, 0 },
132 /*84*/ { "", FALSE, NONE, 0, 0 },
133 /*85*/ { "", FALSE, NONE, 0, 0 },
134 /*86*/ { "", FALSE, NONE, 0, 0 },
135 /*87*/ { "", FALSE, NONE, 0, 0 },
136
137 /*88*/ { "", FALSE, NONE, 0, 0 },
138 /*89*/ { "", FALSE, NONE, 0, 0 },
139 /*8a*/ { "", FALSE, NONE, 0, 0 },
140 /*8b*/ { "", FALSE, NONE, 0, 0 },
141 /*8c*/ { "", FALSE, NONE, 0, 0 },
142 /*8d*/ { "", FALSE, NONE, 0, 0 },
143 /*8e*/ { "", FALSE, NONE, 0, 0 },
144 /*8f*/ { "", FALSE, NONE, 0, 0 },
145 };
146
147 static const struct inst * const db_inst_0f38[] = {
148 0,
149 0,
150 0,
151 0,
152 0,
153 0,
154 0,
155 0,
156 db_inst_0f388x,
157 0,
158 0,
159 0,
160 0,
161 0,
162 0,
163 0
164 };
165
166 static const char * const db_Grp6[] = {
167 "sldt",
168 "str",
169 "lldt",
170 "ltr",
171 "verr",
172 "verw",
173 "",
174 ""
175 };
176
177 static const char * const db_Grp7[] = {
178 "sgdt",
179 "sidt",
180 "lgdt",
181 "lidt",
182 "smsw",
183 "",
184 "lmsw",
185 "invlpg"
186 };
187
188 static const char * const db_Grp8[] = {
189 "",
190 "",
191 "",
192 "",
193 "bt",
194 "bts",
195 "btr",
196 "btc"
197 };
198
199 static const char * const db_Grp9[] = {
200 "",
201 "cmpxchg8b",
202 "",
203 "",
204 "",
205 "",
206 "vmptrld",
207 "vmptrst"
208 };
209
210 static const char * const db_Grp15[] = {
211 "fxsave",
212 "fxrstor",
213 "ldmxcsr",
214 "stmxcsr",
215 "xsave",
216 "xrstor",
217 "xsaveopt",
218 "clflush"
219 };
220
221 static const char * const db_Grp15b[] = {
222 "",
223 "",
224 "",
225 "",
226 "",
227 "lfence",
228 "mfence",
229 "sfence"
230 };
231
232 static const struct inst db_inst_0f0x[] = {
233 /*00*/ { "", TRUE, NONE, op1(Ew), db_Grp6 },
234 /*01*/ { "", TRUE, NONE, op1(Ew), db_Grp7 },
235 /*02*/ { "lar", TRUE, LONG, op2(E,R), 0 },
236 /*03*/ { "lsl", TRUE, LONG, op2(E,R), 0 },
237 /*04*/ { "", FALSE, NONE, 0, 0 },
238 /*05*/ { "syscall",FALSE,NONE, 0, 0 },
239 /*06*/ { "clts", FALSE, NONE, 0, 0 },
240 /*07*/ { "sysret",FALSE, NONE, 0, 0 },
241
242 /*08*/ { "invd", FALSE, NONE, 0, 0 },
243 /*09*/ { "wbinvd",FALSE, NONE, 0, 0 },
244 /*0a*/ { "", FALSE, NONE, 0, 0 },
245 /*0b*/ { "", FALSE, NONE, 0, 0 },
246 /*0c*/ { "", FALSE, NONE, 0, 0 },
247 /*0d*/ { "", FALSE, NONE, 0, 0 },
248 /*0e*/ { "", FALSE, NONE, 0, 0 },
249 /*0f*/ { "", FALSE, NONE, 0, 0 },
250 };
251
252 static const struct inst db_inst_0f1x[] = {
253 /*10*/ { "", FALSE, NONE, 0, 0 },
254 /*11*/ { "", FALSE, NONE, 0, 0 },
255 /*12*/ { "", FALSE, NONE, 0, 0 },
256 /*13*/ { "", FALSE, NONE, 0, 0 },
257 /*14*/ { "", FALSE, NONE, 0, 0 },
258 /*15*/ { "", FALSE, NONE, 0, 0 },
259 /*16*/ { "", FALSE, NONE, 0, 0 },
260 /*17*/ { "", FALSE, NONE, 0, 0 },
261
262 /*18*/ { "", FALSE, NONE, 0, 0 },
263 /*19*/ { "", FALSE, NONE, 0, 0 },
264 /*1a*/ { "", FALSE, NONE, 0, 0 },
265 /*1b*/ { "", FALSE, NONE, 0, 0 },
266 /*1c*/ { "", FALSE, NONE, 0, 0 },
267 /*1d*/ { "", FALSE, NONE, 0, 0 },
268 /*1e*/ { "", FALSE, NONE, 0, 0 },
269 /*1f*/ { "nopl", TRUE, SDEP, 0, "nopw" },
270 };
271
272 static const struct inst db_inst_0f2x[] = {
273 /*20*/ { "mov", TRUE, LONG, op2(CR,El), 0 },
274 /*21*/ { "mov", TRUE, LONG, op2(DR,El), 0 },
275 /*22*/ { "mov", TRUE, LONG, op2(El,CR), 0 },
276 /*23*/ { "mov", TRUE, LONG, op2(El,DR), 0 },
277 /*24*/ { "mov", TRUE, LONG, op2(TR,El), 0 },
278 /*25*/ { "", FALSE, NONE, 0, 0 },
279 /*26*/ { "mov", TRUE, LONG, op2(El,TR), 0 },
280 /*27*/ { "", FALSE, NONE, 0, 0 },
281
282 /*28*/ { "", FALSE, NONE, 0, 0 },
283 /*29*/ { "", FALSE, NONE, 0, 0 },
284 /*2a*/ { "", FALSE, NONE, 0, 0 },
285 /*2b*/ { "", FALSE, NONE, 0, 0 },
286 /*2c*/ { "", FALSE, NONE, 0, 0 },
287 /*2d*/ { "", FALSE, NONE, 0, 0 },
288 /*2e*/ { "", FALSE, NONE, 0, 0 },
289 /*2f*/ { "", FALSE, NONE, 0, 0 },
290 };
291
292 static const struct inst db_inst_0f3x[] = {
293 /*30*/ { "wrmsr", FALSE, NONE, 0, 0 },
294 /*31*/ { "rdtsc", FALSE, NONE, 0, 0 },
295 /*32*/ { "rdmsr", FALSE, NONE, 0, 0 },
296 /*33*/ { "rdpmc", FALSE, NONE, 0, 0 },
297 /*34*/ { "sysenter",FALSE,NONE, 0, 0 },
298 /*35*/ { "sysexit",FALSE,NONE, 0, 0 },
299 /*36*/ { "", FALSE, NONE, 0, 0 },
300 /*37*/ { "getsec",FALSE, NONE, 0, 0 },
301
302 /*38*/ { "", FALSE, ESC, 0, db_inst_0f38 },
303 /*39*/ { "", FALSE, NONE, 0, 0 },
304 /*3a*/ { "", FALSE, NONE, 0, 0 },
305 /*3b*/ { "", FALSE, NONE, 0, 0 },
306 /*3c*/ { "", FALSE, NONE, 0, 0 },
307 /*3d*/ { "", FALSE, NONE, 0, 0 },
308 /*3e*/ { "", FALSE, NONE, 0, 0 },
309 /*3f*/ { "", FALSE, NONE, 0, 0 },
310 };
311
312 static const struct inst db_inst_0f4x[] = {
313 /*40*/ { "cmovo", TRUE, NONE, op2(E, R), 0 },
314 /*41*/ { "cmovno", TRUE, NONE, op2(E, R), 0 },
315 /*42*/ { "cmovb", TRUE, NONE, op2(E, R), 0 },
316 /*43*/ { "cmovnb", TRUE, NONE, op2(E, R), 0 },
317 /*44*/ { "cmovz", TRUE, NONE, op2(E, R), 0 },
318 /*45*/ { "cmovnz", TRUE, NONE, op2(E, R), 0 },
319 /*46*/ { "cmovbe", TRUE, NONE, op2(E, R), 0 },
320 /*47*/ { "cmovnbe",TRUE, NONE, op2(E, R), 0 },
321
322 /*48*/ { "cmovs", TRUE, NONE, op2(E, R), 0 },
323 /*49*/ { "cmovns", TRUE, NONE, op2(E, R), 0 },
324 /*4a*/ { "cmovp", TRUE, NONE, op2(E, R), 0 },
325 /*4b*/ { "cmovnp", TRUE, NONE, op2(E, R), 0 },
326 /*4c*/ { "cmovl", TRUE, NONE, op2(E, R), 0 },
327 /*4d*/ { "cmovnl", TRUE, NONE, op2(E, R), 0 },
328 /*4e*/ { "cmovle", TRUE, NONE, op2(E, R), 0 },
329 /*4f*/ { "cmovnle",TRUE, NONE, op2(E, R), 0 },
330 };
331
332 static const struct inst db_inst_0f7x[] = {
333 /*70*/ { "", FALSE, NONE, 0, 0 },
334 /*71*/ { "", FALSE, NONE, 0, 0 },
335 /*72*/ { "", FALSE, NONE, 0, 0 },
336 /*73*/ { "", FALSE, NONE, 0, 0 },
337 /*74*/ { "", FALSE, NONE, 0, 0 },
338 /*75*/ { "", FALSE, NONE, 0, 0 },
339 /*76*/ { "", FALSE, NONE, 0, 0 },
340 /*77*/ { "", FALSE, NONE, 0, 0 },
341
342 /*78*/ { "vmread", TRUE, NONE, op2(Rq, E), 0 },
343 /*79*/ { "vmwrite",TRUE, NONE, op2(E, Rq), 0 },
344 /*7a*/ { "", FALSE, NONE, 0, 0 },
345 /*7b*/ { "", FALSE, NONE, 0, 0 },
346 /*7c*/ { "", FALSE, NONE, 0, 0 },
347 /*7d*/ { "", FALSE, NONE, 0, 0 },
348 /*7e*/ { "", FALSE, NONE, 0, 0 },
349 /*7f*/ { "", FALSE, NONE, 0, 0 },
350 };
351
352 static const struct inst db_inst_0f8x[] = {
353 /*80*/ { "jo", FALSE, NONE, op1(Dl), 0 },
354 /*81*/ { "jno", FALSE, NONE, op1(Dl), 0 },
355 /*82*/ { "jb", FALSE, NONE, op1(Dl), 0 },
356 /*83*/ { "jnb", FALSE, NONE, op1(Dl), 0 },
357 /*84*/ { "jz", FALSE, NONE, op1(Dl), 0 },
358 /*85*/ { "jnz", FALSE, NONE, op1(Dl), 0 },
359 /*86*/ { "jbe", FALSE, NONE, op1(Dl), 0 },
360 /*87*/ { "jnbe", FALSE, NONE, op1(Dl), 0 },
361
362 /*88*/ { "js", FALSE, NONE, op1(Dl), 0 },
363 /*89*/ { "jns", FALSE, NONE, op1(Dl), 0 },
364 /*8a*/ { "jp", FALSE, NONE, op1(Dl), 0 },
365 /*8b*/ { "jnp", FALSE, NONE, op1(Dl), 0 },
366 /*8c*/ { "jl", FALSE, NONE, op1(Dl), 0 },
367 /*8d*/ { "jnl", FALSE, NONE, op1(Dl), 0 },
368 /*8e*/ { "jle", FALSE, NONE, op1(Dl), 0 },
369 /*8f*/ { "jnle", FALSE, NONE, op1(Dl), 0 },
370 };
371
372 static const struct inst db_inst_0f9x[] = {
373 /*90*/ { "seto", TRUE, NONE, op1(Eb), 0 },
374 /*91*/ { "setno", TRUE, NONE, op1(Eb), 0 },
375 /*92*/ { "setb", TRUE, NONE, op1(Eb), 0 },
376 /*93*/ { "setnb", TRUE, NONE, op1(Eb), 0 },
377 /*94*/ { "setz", TRUE, NONE, op1(Eb), 0 },
378 /*95*/ { "setnz", TRUE, NONE, op1(Eb), 0 },
379 /*96*/ { "setbe", TRUE, NONE, op1(Eb), 0 },
380 /*97*/ { "setnbe",TRUE, NONE, op1(Eb), 0 },
381
382 /*98*/ { "sets", TRUE, NONE, op1(Eb), 0 },
383 /*99*/ { "setns", TRUE, NONE, op1(Eb), 0 },
384 /*9a*/ { "setp", TRUE, NONE, op1(Eb), 0 },
385 /*9b*/ { "setnp", TRUE, NONE, op1(Eb), 0 },
386 /*9c*/ { "setl", TRUE, NONE, op1(Eb), 0 },
387 /*9d*/ { "setnl", TRUE, NONE, op1(Eb), 0 },
388 /*9e*/ { "setle", TRUE, NONE, op1(Eb), 0 },
389 /*9f*/ { "setnle",TRUE, NONE, op1(Eb), 0 },
390 };
391
392 static const struct inst db_inst_0fax[] = {
393 /*a0*/ { "push", FALSE, NONE, op1(Si), 0 },
394 /*a1*/ { "pop", FALSE, NONE, op1(Si), 0 },
395 /*a2*/ { "cpuid", FALSE, NONE, 0, 0 },
396 /*a3*/ { "bt", TRUE, LONG, op2(R,E), 0 },
397 /*a4*/ { "shld", TRUE, LONG, op3(Ib,R,E), 0 },
398 /*a5*/ { "shld", TRUE, LONG, op3(CL,R,E), 0 },
399 /*a6*/ { "", FALSE, NONE, 0, 0 },
400 /*a7*/ { "", FALSE, NONE, 0, 0 },
401
402 /*a8*/ { "push", FALSE, NONE, op1(Si), 0 },
403 /*a9*/ { "pop", FALSE, NONE, op1(Si), 0 },
404 /*aa*/ { "rsm", FALSE, NONE, 0, 0 },
405 /*ab*/ { "bts", TRUE, LONG, op2(R,E), 0 },
406 /*ac*/ { "shrd", TRUE, LONG, op3(Ib,R,E), 0 },
407 /*ad*/ { "shrd", TRUE, LONG, op3(CL,R,E), 0 },
408 /*ae*/ { "", TRUE, LONG, op1(E), db_Grp15 },
409 /*af*/ { "imul", TRUE, LONG, op2(E,R), 0 },
410 };
411
412 static const struct inst db_inst_0fbx[] = {
413 /*b0*/ { "cmpxchg",TRUE, BYTE, op2(R, E), 0 },
414 /*b0*/ { "cmpxchg",TRUE, LONG, op2(R, E), 0 },
415 /*b2*/ { "lss", TRUE, LONG, op2(E, R), 0 },
416 /*b3*/ { "btr", TRUE, LONG, op2(R, E), 0 },
417 /*b4*/ { "lfs", TRUE, LONG, op2(E, R), 0 },
418 /*b5*/ { "lgs", TRUE, LONG, op2(E, R), 0 },
419 /*b6*/ { "movzb", TRUE, LONG, op2(Eb, R), 0 },
420 /*b7*/ { "movzw", TRUE, LONG, op2(Ew, R), 0 },
421
422 /*b8*/ { "", FALSE, NONE, 0, 0 },
423 /*b9*/ { "", FALSE, NONE, 0, 0 },
424 /*ba*/ { "", TRUE, LONG, op2(Ib, E), db_Grp8 },
425 /*bb*/ { "btc", TRUE, LONG, op2(R, E), 0 },
426 /*bc*/ { "bsf", TRUE, LONG, op2(E, R), 0 },
427 /*bd*/ { "bsr", TRUE, LONG, op2(E, R), 0 },
428 /*be*/ { "movsb", TRUE, LONG, op2(Eb, R), 0 },
429 /*bf*/ { "movsw", TRUE, LONG, op2(Ew, R), 0 },
430 };
431
432 static const struct inst db_inst_0fcx[] = {
433 /*c0*/ { "xadd", TRUE, BYTE, op2(R, E), 0 },
434 /*c1*/ { "xadd", TRUE, LONG, op2(R, E), 0 },
435 /*c2*/ { "", FALSE, NONE, 0, 0 },
436 /*c3*/ { "", FALSE, NONE, 0, 0 },
437 /*c4*/ { "", FALSE, NONE, 0, 0 },
438 /*c5*/ { "", FALSE, NONE, 0, 0 },
439 /*c6*/ { "", FALSE, NONE, 0, 0 },
440 /*c7*/ { "", TRUE, NONE, op1(E), db_Grp9 },
441 /*c8*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
442 /*c9*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
443 /*ca*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
444 /*cb*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
445 /*cc*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
446 /*cd*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
447 /*ce*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
448 /*cf*/ { "bswap", FALSE, LONG, op1(Ril), 0 },
449 };
450
451 static const struct inst * const db_inst_0f[] = {
452 db_inst_0f0x,
453 db_inst_0f1x,
454 db_inst_0f2x,
455 db_inst_0f3x,
456 db_inst_0f4x,
457 0,
458 0,
459 db_inst_0f7x,
460 db_inst_0f8x,
461 db_inst_0f9x,
462 db_inst_0fax,
463 db_inst_0fbx,
464 db_inst_0fcx,
465 0,
466 0,
467 0
468 };
469
470 static const char * const db_Esc92[] = {
471 "fnop", "", "", "", "", "", "", ""
472 };
473 static const char * const db_Esc94[] = {
474 "fchs", "fabs", "", "", "ftst", "fxam", "", ""
475 };
476 static const char * const db_Esc95[] = {
477 "fld1", "fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz",""
478 };
479 static const char * const db_Esc96[] = {
480 "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp",
481 "fincstp"
482 };
483 static const char * const db_Esc97[] = {
484 "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos"
485 };
486
487 static const char * const db_Esca5[] = {
488 "", "fucompp","", "", "", "", "", ""
489 };
490
491 static const char * const db_Escb4[] = {
492 "fneni","fndisi", "fnclex","fninit","fsetpm", "", "", ""
493 };
494
495 static const char * const db_Esce3[] = {
496 "", "fcompp","", "", "", "", "", ""
497 };
498
499 static const char * const db_Escf4[] = {
500 "fnstsw","", "", "", "", "", "", ""
501 };
502
503 static const struct finst db_Esc8[] = {
504 /**/ { "fadd", SNGL, op2(STI,ST), 0 },
505 /*1*/ { "fmul", SNGL, op2(STI,ST), 0 },
506 /*2*/ { "fcom", SNGL, op2(STI,ST), 0 },
507 /*3*/ { "fcomp", SNGL, op2(STI,ST), 0 },
508 /*4*/ { "fsub", SNGL, op2(STI,ST), 0 },
509 /*5*/ { "fsubr", SNGL, op2(STI,ST), 0 },
510 /*6*/ { "fdiv", SNGL, op2(STI,ST), 0 },
511 /*7*/ { "fdivr", SNGL, op2(STI,ST), 0 },
512 };
513
514 static const struct finst db_Esc9[] = {
515 /**/ { "fld", SNGL, op1(STI), 0 },
516 /*1*/ { "", NONE, op1(STI), "fxch" },
517 /*2*/ { "fst", SNGL, op1(X), db_Esc92 },
518 /*3*/ { "fstp", SNGL, 0, 0 },
519 /*4*/ { "fldenv", NONE, op1(X), db_Esc94 },
520 /*5*/ { "fldcw", NONE, op1(X), db_Esc95 },
521 /*6*/ { "fnstenv",NONE, op1(X), db_Esc96 },
522 /*7*/ { "fnstcw", NONE, op1(X), db_Esc97 },
523 };
524
525 static const struct finst db_Esca[] = {
526 /**/ { "fiadd", LONG, 0, 0 },
527 /*1*/ { "fimul", LONG, 0, 0 },
528 /*2*/ { "ficom", LONG, 0, 0 },
529 /*3*/ { "ficomp", LONG, 0, 0 },
530 /*4*/ { "fisub", LONG, 0, 0 },
531 /*5*/ { "fisubr", LONG, op1(X), db_Esca5 },
532 /*6*/ { "fidiv", LONG, 0, 0 },
533 /*7*/ { "fidivr", LONG, 0, 0 }
534 };
535
536 static const struct finst db_Escb[] = {
537 /**/ { "fild", LONG, 0, 0 },
538 /*1*/ { "", NONE, 0, 0 },
539 /*2*/ { "fist", LONG, 0, 0 },
540 /*3*/ { "fistp", LONG, 0, 0 },
541 /*4*/ { "", WORD, op1(X), db_Escb4 },
542 /*5*/ { "fld", EXTR, 0, 0 },
543 /*6*/ { "", WORD, 0, 0 },
544 /*7*/ { "fstp", EXTR, 0, 0 },
545 };
546
547 static const struct finst db_Escc[] = {
548 /**/ { "fadd", DBLR, op2(ST,STI), 0 },
549 /*1*/ { "fmul", DBLR, op2(ST,STI), 0 },
550 /*2*/ { "fcom", DBLR, 0, 0 },
551 /*3*/ { "fcomp", DBLR, 0, 0 },
552 /*4*/ { "fsub", DBLR, op2(ST,STI), "fsubr" },
553 /*5*/ { "fsubr", DBLR, op2(ST,STI), "fsub" },
554 /*6*/ { "fdiv", DBLR, op2(ST,STI), "fdivr" },
555 /*7*/ { "fdivr", DBLR, op2(ST,STI), "fdiv" },
556 };
557
558 static const struct finst db_Escd[] = {
559 /**/ { "fld", DBLR, op1(STI), "ffree" },
560 /*1*/ { "", NONE, 0, 0 },
561 /*2*/ { "fst", DBLR, op1(STI), 0 },
562 /*3*/ { "fstp", DBLR, op1(STI), 0 },
563 /*4*/ { "frstor", NONE, op1(STI), "fucom" },
564 /*5*/ { "", NONE, op1(STI), "fucomp" },
565 /*6*/ { "fnsave", NONE, 0, 0 },
566 /*7*/ { "fnstsw", NONE, 0, 0 },
567 };
568
569 static const struct finst db_Esce[] = {
570 /**/ { "fiadd", WORD, op2(ST,STI), "faddp" },
571 /*1*/ { "fimul", WORD, op2(ST,STI), "fmulp" },
572 /*2*/ { "ficom", WORD, 0, 0 },
573 /*3*/ { "ficomp", WORD, op1(X), db_Esce3 },
574 /*4*/ { "fisub", WORD, op2(ST,STI), "fsubrp" },
575 /*5*/ { "fisubr", WORD, op2(ST,STI), "fsubp" },
576 /*6*/ { "fidiv", WORD, op2(ST,STI), "fdivrp" },
577 /*7*/ { "fidivr", WORD, op2(ST,STI), "fdivp" },
578 };
579
580 static const struct finst db_Escf[] = {
581 /**/ { "fild", WORD, 0, 0 },
582 /*1*/ { "", NONE, 0, 0 },
583 /*2*/ { "fist", WORD, 0, 0 },
584 /*3*/ { "fistp", WORD, 0, 0 },
585 /*4*/ { "fbld", NONE, op1(XA), db_Escf4 },
586 /*5*/ { "fild", QUAD, 0, 0 },
587 /*6*/ { "fbstp", NONE, 0, 0 },
588 /*7*/ { "fistp", QUAD, 0, 0 },
589 };
590
591 static const struct finst * const db_Esc_inst[] = {
592 db_Esc8, db_Esc9, db_Esca, db_Escb,
593 db_Escc, db_Escd, db_Esce, db_Escf
594 };
595
596 static const char * const db_Grp1[] = {
597 "add",
598 "or",
599 "adc",
600 "sbb",
601 "and",
602 "sub",
603 "xor",
604 "cmp"
605 };
606
607 static const char * const db_Grp2[] = {
608 "rol",
609 "ror",
610 "rcl",
611 "rcr",
612 "shl",
613 "shr",
614 "shl",
615 "sar"
616 };
617
618 static const struct inst db_Grp3[] = {
619 { "test", TRUE, NONE, op2(I,E), 0 },
620 { "test", TRUE, NONE, op2(I,E), 0 },
621 { "not", TRUE, NONE, op1(E), 0 },
622 { "neg", TRUE, NONE, op1(E), 0 },
623 { "mul", TRUE, NONE, op2(E,A), 0 },
624 { "imul", TRUE, NONE, op2(E,A), 0 },
625 { "div", TRUE, NONE, op2(E,A), 0 },
626 { "idiv", TRUE, NONE, op2(E,A), 0 },
627 };
628
629 static const struct inst db_Grp4[] = {
630 { "inc", TRUE, BYTE, op1(E), 0 },
631 { "dec", TRUE, BYTE, op1(E), 0 },
632 { "", TRUE, NONE, 0, 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 };
639
640 static const struct inst db_Grp5[] = {
641 { "inc", TRUE, LONG, op1(E), 0 },
642 { "dec", TRUE, LONG, op1(E), 0 },
643 { "call", TRUE, LONG, op1(Eind),0 },
644 { "lcall", TRUE, LONG, op1(Eind),0 },
645 { "jmp", TRUE, LONG, op1(Eind),0 },
646 { "ljmp", TRUE, LONG, op1(Eind),0 },
647 { "push", TRUE, LONG, op1(E), 0 },
648 { "", TRUE, NONE, 0, 0 }
649 };
650
651 static const struct inst db_inst_table[256] = {
652 /*00*/ { "add", TRUE, BYTE, op2(R, E), 0 },
653 /*01*/ { "add", TRUE, LONG, op2(R, E), 0 },
654 /*02*/ { "add", TRUE, BYTE, op2(E, R), 0 },
655 /*03*/ { "add", TRUE, LONG, op2(E, R), 0 },
656 /*04*/ { "add", FALSE, BYTE, op2(I, A), 0 },
657 /*05*/ { "add", FALSE, LONG, op2(Is, A), 0 },
658 /*06*/ { "push", FALSE, NONE, op1(Si), 0 },
659 /*07*/ { "pop", FALSE, NONE, op1(Si), 0 },
660
661 /*08*/ { "or", TRUE, BYTE, op2(R, E), 0 },
662 /*09*/ { "or", TRUE, LONG, op2(R, E), 0 },
663 /*0a*/ { "or", TRUE, BYTE, op2(E, R), 0 },
664 /*0b*/ { "or", TRUE, LONG, op2(E, R), 0 },
665 /*0c*/ { "or", FALSE, BYTE, op2(I, A), 0 },
666 /*0d*/ { "or", FALSE, LONG, op2(I, A), 0 },
667 /*0e*/ { "push", FALSE, NONE, op1(Si), 0 },
668 /*0f*/ { "", FALSE, ESC, 0, db_inst_0f },
669
670 /*10*/ { "adc", TRUE, BYTE, op2(R, E), 0 },
671 /*11*/ { "adc", TRUE, LONG, op2(R, E), 0 },
672 /*12*/ { "adc", TRUE, BYTE, op2(E, R), 0 },
673 /*13*/ { "adc", TRUE, LONG, op2(E, R), 0 },
674 /*14*/ { "adc", FALSE, BYTE, op2(I, A), 0 },
675 /*15*/ { "adc", FALSE, LONG, op2(Is, A), 0 },
676 /*16*/ { "push", FALSE, NONE, op1(Si), 0 },
677 /*17*/ { "pop", FALSE, NONE, op1(Si), 0 },
678
679 /*18*/ { "sbb", TRUE, BYTE, op2(R, E), 0 },
680 /*19*/ { "sbb", TRUE, LONG, op2(R, E), 0 },
681 /*1a*/ { "sbb", TRUE, BYTE, op2(E, R), 0 },
682 /*1b*/ { "sbb", TRUE, LONG, op2(E, R), 0 },
683 /*1c*/ { "sbb", FALSE, BYTE, op2(I, A), 0 },
684 /*1d*/ { "sbb", FALSE, LONG, op2(Is, A), 0 },
685 /*1e*/ { "push", FALSE, NONE, op1(Si), 0 },
686 /*1f*/ { "pop", FALSE, NONE, op1(Si), 0 },
687
688 /*20*/ { "and", TRUE, BYTE, op2(R, E), 0 },
689 /*21*/ { "and", TRUE, LONG, op2(R, E), 0 },
690 /*22*/ { "and", TRUE, BYTE, op2(E, R), 0 },
691 /*23*/ { "and", TRUE, LONG, op2(E, R), 0 },
692 /*24*/ { "and", FALSE, BYTE, op2(I, A), 0 },
693 /*25*/ { "and", FALSE, LONG, op2(I, A), 0 },
694 /*26*/ { "", FALSE, NONE, 0, 0 },
695 /*27*/ { "daa", FALSE, NONE, 0, 0 },
696
697 /*28*/ { "sub", TRUE, BYTE, op2(R, E), 0 },
698 /*29*/ { "sub", TRUE, LONG, op2(R, E), 0 },
699 /*2a*/ { "sub", TRUE, BYTE, op2(E, R), 0 },
700 /*2b*/ { "sub", TRUE, LONG, op2(E, R), 0 },
701 /*2c*/ { "sub", FALSE, BYTE, op2(I, A), 0 },
702 /*2d*/ { "sub", FALSE, LONG, op2(Is, A), 0 },
703 /*2e*/ { "", FALSE, NONE, 0, 0 },
704 /*2f*/ { "das", FALSE, NONE, 0, 0 },
705
706 /*30*/ { "xor", TRUE, BYTE, op2(R, E), 0 },
707 /*31*/ { "xor", TRUE, LONG, op2(R, E), 0 },
708 /*32*/ { "xor", TRUE, BYTE, op2(E, R), 0 },
709 /*33*/ { "xor", TRUE, LONG, op2(E, R), 0 },
710 /*34*/ { "xor", FALSE, BYTE, op2(I, A), 0 },
711 /*35*/ { "xor", FALSE, LONG, op2(I, A), 0 },
712 /*36*/ { "", FALSE, NONE, 0, 0 },
713 /*37*/ { "aaa", FALSE, NONE, 0, 0 },
714
715 /*38*/ { "cmp", TRUE, BYTE, op2(R, E), 0 },
716 /*39*/ { "cmp", TRUE, LONG, op2(R, E), 0 },
717 /*3a*/ { "cmp", TRUE, BYTE, op2(E, R), 0 },
718 /*3b*/ { "cmp", TRUE, LONG, op2(E, R), 0 },
719 /*3c*/ { "cmp", FALSE, BYTE, op2(I, A), 0 },
720 /*3d*/ { "cmp", FALSE, LONG, op2(Is, A), 0 },
721 /*3e*/ { "", FALSE, NONE, 0, 0 },
722 /*3f*/ { "aas", FALSE, NONE, 0, 0 },
723
724 /*40*/ { "rex", FALSE, NONE, 0, 0 },
725 /*41*/ { "rex.b", FALSE, NONE, 0, 0 },
726 /*42*/ { "rex.x", FALSE, NONE, 0, 0 },
727 /*43*/ { "rex.xb", FALSE, NONE, 0, 0 },
728 /*44*/ { "rex.r", FALSE, NONE, 0, 0 },
729 /*45*/ { "rex.rb", FALSE, NONE, 0, 0 },
730 /*46*/ { "rex.rx", FALSE, NONE, 0, 0 },
731 /*47*/ { "rex.rxb", FALSE, NONE, 0, 0 },
732
733 /*48*/ { "rex.w", FALSE, NONE, 0, 0 },
734 /*49*/ { "rex.wb", FALSE, NONE, 0, 0 },
735 /*4a*/ { "rex.wx", FALSE, NONE, 0, 0 },
736 /*4b*/ { "rex.wxb", FALSE, NONE, 0, 0 },
737 /*4c*/ { "rex.wr", FALSE, NONE, 0, 0 },
738 /*4d*/ { "rex.wrb", FALSE, NONE, 0, 0 },
739 /*4e*/ { "rex.wrx", FALSE, NONE, 0, 0 },
740 /*4f*/ { "rex.wrxb", FALSE, NONE, 0, 0 },
741
742 /*50*/ { "push", FALSE, LONG, op1(Ri), 0 },
743 /*51*/ { "push", FALSE, LONG, op1(Ri), 0 },
744 /*52*/ { "push", FALSE, LONG, op1(Ri), 0 },
745 /*53*/ { "push", FALSE, LONG, op1(Ri), 0 },
746 /*54*/ { "push", FALSE, LONG, op1(Ri), 0 },
747 /*55*/ { "push", FALSE, LONG, op1(Ri), 0 },
748 /*56*/ { "push", FALSE, LONG, op1(Ri), 0 },
749 /*57*/ { "push", FALSE, LONG, op1(Ri), 0 },
750
751 /*58*/ { "pop", FALSE, LONG, op1(Ri), 0 },
752 /*59*/ { "pop", FALSE, LONG, op1(Ri), 0 },
753 /*5a*/ { "pop", FALSE, LONG, op1(Ri), 0 },
754 /*5b*/ { "pop", FALSE, LONG, op1(Ri), 0 },
755 /*5c*/ { "pop", FALSE, LONG, op1(Ri), 0 },
756 /*5d*/ { "pop", FALSE, LONG, op1(Ri), 0 },
757 /*5e*/ { "pop", FALSE, LONG, op1(Ri), 0 },
758 /*5f*/ { "pop", FALSE, LONG, op1(Ri), 0 },
759
760 /*60*/ { "pusha", FALSE, LONG, 0, 0 },
761 /*61*/ { "popa", FALSE, LONG, 0, 0 },
762 /*62*/ { "bound", TRUE, LONG, op2(E, R), 0 },
763 /*63*/ { "movslq", TRUE, NONE, op2(EL,R), 0 },
764
765 /*64*/ { "", FALSE, NONE, 0, 0 },
766 /*65*/ { "", FALSE, NONE, 0, 0 },
767 /*66*/ { "", FALSE, NONE, 0, 0 },
768 /*67*/ { "", FALSE, NONE, 0, 0 },
769
770 /*68*/ { "push", FALSE, LONG, op1(I), 0 },
771 /*69*/ { "imul", TRUE, LONG, op3(I,E,R), 0 },
772 /*6a*/ { "push", FALSE, LONG, op1(Ibs), 0 },
773 /*6b*/ { "imul", TRUE, LONG, op3(Ibs,E,R),0 },
774 /*6c*/ { "ins", FALSE, BYTE, op2(DX, DI), 0 },
775 /*6d*/ { "ins", FALSE, LONG, op2(DX, DI), 0 },
776 /*6e*/ { "outs", FALSE, BYTE, op2(SI, DX), 0 },
777 /*6f*/ { "outs", FALSE, LONG, op2(SI, DX), 0 },
778
779 /*70*/ { "jo", FALSE, NONE, op1(Db), 0 },
780 /*71*/ { "jno", FALSE, NONE, op1(Db), 0 },
781 /*72*/ { "jb", FALSE, NONE, op1(Db), 0 },
782 /*73*/ { "jnb", FALSE, NONE, op1(Db), 0 },
783 /*74*/ { "jz", FALSE, NONE, op1(Db), 0 },
784 /*75*/ { "jnz", FALSE, NONE, op1(Db), 0 },
785 /*76*/ { "jbe", FALSE, NONE, op1(Db), 0 },
786 /*77*/ { "jnbe", FALSE, NONE, op1(Db), 0 },
787
788 /*78*/ { "js", FALSE, NONE, op1(Db), 0 },
789 /*79*/ { "jns", FALSE, NONE, op1(Db), 0 },
790 /*7a*/ { "jp", FALSE, NONE, op1(Db), 0 },
791 /*7b*/ { "jnp", FALSE, NONE, op1(Db), 0 },
792 /*7c*/ { "jl", FALSE, NONE, op1(Db), 0 },
793 /*7d*/ { "jnl", FALSE, NONE, op1(Db), 0 },
794 /*7e*/ { "jle", FALSE, NONE, op1(Db), 0 },
795 /*7f*/ { "jnle", FALSE, NONE, op1(Db), 0 },
796
797 /*80*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 },
798 /*81*/ { "", TRUE, LONG, op2(I, E), db_Grp1 },
799 /*82*/ { "", TRUE, BYTE, op2(I, E), db_Grp1 },
800 /*83*/ { "", TRUE, LONG, op2(Ibs,E), db_Grp1 },
801 /*84*/ { "test", TRUE, BYTE, op2(R, E), 0 },
802 /*85*/ { "test", TRUE, LONG, op2(R, E), 0 },
803 /*86*/ { "xchg", TRUE, BYTE, op2(R, E), 0 },
804 /*87*/ { "xchg", TRUE, LONG, op2(R, E), 0 },
805
806 /*88*/ { "mov", TRUE, BYTE, op2(R, E), 0 },
807 /*89*/ { "mov", TRUE, LONG, op2(R, E), 0 },
808 /*8a*/ { "mov", TRUE, BYTE, op2(E, R), 0 },
809 /*8b*/ { "mov", TRUE, LONG, op2(E, R), 0 },
810 /*8c*/ { "mov", TRUE, NONE, op2(S, Ew), 0 },
811 /*8d*/ { "lea", TRUE, LONG, op2(E, R), 0 },
812 /*8e*/ { "mov", TRUE, NONE, op2(Ew, S), 0 },
813 /*8f*/ { "pop", TRUE, LONG, op1(E), 0 },
814
815 /*90*/ { "nop", FALSE, NONE, 0, 0 },
816 /*91*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
817 /*92*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
818 /*93*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
819 /*94*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
820 /*95*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
821 /*96*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
822 /*97*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
823
824 /*98*/ { "cwde", FALSE, SDEP, 0, "cbw" },
825 /*99*/ { "cdq", FALSE, SDEP, 0, "cwd" },
826 /*9a*/ { "lcall", FALSE, NONE, op1(OS), 0 },
827 /*9b*/ { "wait", FALSE, NONE, 0, 0 },
828 /*9c*/ { "pushf", FALSE, LONG, 0, 0 },
829 /*9d*/ { "popf", FALSE, LONG, 0, 0 },
830 /*9e*/ { "sahf", FALSE, NONE, 0, 0 },
831 /*9f*/ { "lahf", FALSE, NONE, 0, 0 },
832
833 /*a0*/ { "mov", FALSE, BYTE, op2(O, A), 0 },
834 /*a1*/ { "mov", FALSE, LONG, op2(O, A), 0 },
835 /*a2*/ { "mov", FALSE, BYTE, op2(A, O), 0 },
836 /*a3*/ { "mov", FALSE, LONG, op2(A, O), 0 },
837 /*a4*/ { "movs", FALSE, BYTE, op2(SI,DI), 0 },
838 /*a5*/ { "movs", FALSE, LONG, op2(SI,DI), 0 },
839 /*a6*/ { "cmps", FALSE, BYTE, op2(SI,DI), 0 },
840 /*a7*/ { "cmps", FALSE, LONG, op2(SI,DI), 0 },
841
842 /*a8*/ { "test", FALSE, BYTE, op2(I, A), 0 },
843 /*a9*/ { "test", FALSE, LONG, op2(I, A), 0 },
844 /*aa*/ { "stos", FALSE, BYTE, op1(DI), 0 },
845 /*ab*/ { "stos", FALSE, LONG, op1(DI), 0 },
846 /*ac*/ { "lods", FALSE, BYTE, op1(SI), 0 },
847 /*ad*/ { "lods", FALSE, LONG, op1(SI), 0 },
848 /*ae*/ { "scas", FALSE, BYTE, op1(SI), 0 },
849 /*af*/ { "scas", FALSE, LONG, op1(SI), 0 },
850
851 /*b0*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
852 /*b1*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
853 /*b2*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
854 /*b3*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
855 /*b4*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
856 /*b5*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
857 /*b6*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
858 /*b7*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
859
860 /*b8*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
861 /*b9*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
862 /*ba*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
863 /*bb*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
864 /*bc*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
865 /*bd*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
866 /*be*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
867 /*bf*/ { "mov", FALSE, LONG, op2(Ilq, Ri), 0 },
868
869 /*c0*/ { "", TRUE, BYTE, op2(Ib, E), db_Grp2 },
870 /*c1*/ { "", TRUE, LONG, op2(Ib, E), db_Grp2 },
871 /*c2*/ { "ret", FALSE, NONE, op1(Iw), 0 },
872 /*c3*/ { "ret", FALSE, NONE, 0, 0 },
873 /*c4*/ { "les", TRUE, LONG, op2(E, R), 0 },
874 /*c5*/ { "lds", TRUE, LONG, op2(E, R), 0 },
875 /*c6*/ { "mov", TRUE, BYTE, op2(I, E), 0 },
876 /*c7*/ { "mov", TRUE, LONG, op2(I, E), 0 },
877
878 /*c8*/ { "enter", FALSE, NONE, op2(Iw, Ib), 0 },
879 /*c9*/ { "leave", FALSE, NONE, 0, 0 },
880 /*ca*/ { "lret", FALSE, NONE, op1(Iw), 0 },
881 /*cb*/ { "lret", FALSE, NONE, 0, 0 },
882 /*cc*/ { "int", FALSE, NONE, op1(o3), 0 },
883 /*cd*/ { "int", FALSE, NONE, op1(Ib), 0 },
884 /*ce*/ { "into", FALSE, NONE, 0, 0 },
885 /*cf*/ { "iret", FALSE, NONE, 0, 0 },
886
887 /*d0*/ { "", TRUE, BYTE, op2(o1, E), db_Grp2 },
888 /*d1*/ { "", TRUE, LONG, op2(o1, E), db_Grp2 },
889 /*d2*/ { "", TRUE, BYTE, op2(CL, E), db_Grp2 },
890 /*d3*/ { "", TRUE, LONG, op2(CL, E), db_Grp2 },
891 /*d4*/ { "aam", FALSE, NONE, op1(Iba), 0 },
892 /*d5*/ { "aad", FALSE, NONE, op1(Iba), 0 },
893 /*d6*/ { ".byte\t0xd6", FALSE, NONE, 0, 0 },
894 /*d7*/ { "xlat", FALSE, BYTE, op1(BX), 0 },
895
896 /*d8*/ { "", TRUE, NONE, 0, db_Esc8 },
897 /*d9*/ { "", TRUE, NONE, 0, db_Esc9 },
898 /*da*/ { "", TRUE, NONE, 0, db_Esca },
899 /*db*/ { "", TRUE, NONE, 0, db_Escb },
900 /*dc*/ { "", TRUE, NONE, 0, db_Escc },
901 /*dd*/ { "", TRUE, NONE, 0, db_Escd },
902 /*de*/ { "", TRUE, NONE, 0, db_Esce },
903 /*df*/ { "", TRUE, NONE, 0, db_Escf },
904
905 /*e0*/ { "loopne",FALSE, NONE, op1(Db), 0 },
906 /*e1*/ { "loope", FALSE, NONE, op1(Db), 0 },
907 /*e2*/ { "loop", FALSE, NONE, op1(Db), 0 },
908 /*e3*/ { "jrcxz", FALSE, ADEP, op1(Db), "jecxz" },
909 /*e4*/ { "in", FALSE, BYTE, op2(Ib, A), 0 },
910 /*e5*/ { "in", FALSE, LONG, op2(Ib, A) , 0 },
911 /*e6*/ { "out", FALSE, BYTE, op2(A, Ib), 0 },
912 /*e7*/ { "out", FALSE, LONG, op2(A, Ib) , 0 },
913
914 /*e8*/ { "call", FALSE, NONE, op1(Dl), 0 },
915 /*e9*/ { "jmp", FALSE, NONE, op1(Dl), 0 },
916 /*ea*/ { "ljmp", FALSE, NONE, op1(OS), 0 },
917 /*eb*/ { "jmp", FALSE, NONE, op1(Db), 0 },
918 /*ec*/ { "in", FALSE, BYTE, op2(DX, A), 0 },
919 /*ed*/ { "in", FALSE, LONG, op2(DX, A) , 0 },
920 /*ee*/ { "out", FALSE, BYTE, op2(A, DX), 0 },
921 /*ef*/ { "out", FALSE, LONG, op2(A, DX) , 0 },
922
923 /*f0*/ { "", FALSE, NONE, 0, 0 },
924 /*f1*/ { ".byte\t0xf1", FALSE, NONE, 0, 0 },
925 /*f2*/ { "", FALSE, NONE, 0, 0 },
926 /*f3*/ { "", FALSE, NONE, 0, 0 },
927 /*f4*/ { "hlt", FALSE, NONE, 0, 0 },
928 /*f5*/ { "cmc", FALSE, NONE, 0, 0 },
929 /*f6*/ { "", TRUE, BYTE, 0, db_Grp3 },
930 /*f7*/ { "", TRUE, LONG, 0, db_Grp3 },
931
932 /*f8*/ { "clc", FALSE, NONE, 0, 0 },
933 /*f9*/ { "stc", FALSE, NONE, 0, 0 },
934 /*fa*/ { "cli", FALSE, NONE, 0, 0 },
935 /*fb*/ { "sti", FALSE, NONE, 0, 0 },
936 /*fc*/ { "cld", FALSE, NONE, 0, 0 },
937 /*fd*/ { "std", FALSE, NONE, 0, 0 },
938 /*fe*/ { "", TRUE, NONE, 0, db_Grp4 },
939 /*ff*/ { "", TRUE, NONE, 0, db_Grp5 },
940 };
941
942 static const struct inst db_bad_inst =
943 { "???", FALSE, NONE, 0, 0 }
944 ;
945
946 #define f_mod(rex, byte) ((byte)>>6)
947 #define f_reg(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_R ? 0x8 : 0x0))
948 #define f_rm(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0))
949
950 #define sib_ss(rex, byte) ((byte)>>6)
951 #define sib_index(rex, byte) ((((byte)>>3)&0x7) | (rex & REX_X ? 0x8 : 0x0))
952 #define sib_base(rex, byte) (((byte)&0x7) | (rex & REX_B ? 0x8 : 0x0))
953
954 struct i_addr {
955 int is_reg; /* if reg, reg number is in 'disp' */
956 int disp;
957 const char * base;
958 const char * index;
959 int ss;
960 };
961
962 static const char * const db_reg[2][4][16] = {
963
964 {{"%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh",
965 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" },
966 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
967 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" },
968 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
969 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" },
970 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
971 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }},
972
973 {{"%al", "%cl", "%dl", "%bl", "%spl", "%bpl", "%sil", "%dil",
974 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b" },
975 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
976 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w" },
977 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
978 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d" },
979 { "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
980 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15" }}
981 };
982
983 static const char * const db_seg_reg[8] = {
984 "%es", "%cs", "%ss", "%ds", "%fs", "%gs", "", ""
985 };
986
987 /*
988 * lengths for size attributes
989 */
990 static const int db_lengths[] = {
991 1, /* BYTE */
992 2, /* WORD */
993 4, /* LONG */
994 8, /* QUAD */
995 4, /* SNGL */
996 8, /* DBLR */
997 10, /* EXTR */
998 };
999
1000 #define get_value_inc(result, loc, size, is_signed) \
1001 result = db_get_value((loc), (size), (is_signed)); \
1002 (loc) += (size);
1003
1004 static db_addr_t
1005 db_disasm_esc(db_addr_t loc, int inst, int rex, int short_addr,
1006 int size, const char *seg);
1007 static void db_print_address(const char *seg, int size, int rex,
1008 struct i_addr *addrp);
1009 static db_addr_t
1010 db_read_address(db_addr_t loc, int short_addr, int rex, int regmodrm,
1011 struct i_addr *addrp);
1012
1013 /*
1014 * Read address at location and return updated location.
1015 */
1016 static db_addr_t
1017 db_read_address(loc, short_addr, rex, regmodrm, addrp)
1018 db_addr_t loc;
1019 int short_addr;
1020 int rex;
1021 int regmodrm;
1022 struct i_addr * addrp; /* out */
1023 {
1024 int mod, rm, sib, index, disp, size, have_sib;
1025
1026 mod = f_mod(rex, regmodrm);
1027 rm = f_rm(rex, regmodrm);
1028
1029 if (mod == 3) {
1030 addrp->is_reg = TRUE;
1031 addrp->disp = rm;
1032 return (loc);
1033 }
1034 addrp->is_reg = FALSE;
1035 addrp->index = 0;
1036
1037 if (short_addr)
1038 size = LONG;
1039 else
1040 size = QUAD;
1041
1042 if ((rm & 0x7) == 4) {
1043 get_value_inc(sib, loc, 1, FALSE);
1044 rm = sib_base(rex, sib);
1045 index = sib_index(rex, sib);
1046 if (index != 4)
1047 addrp->index = db_reg[1][size][index];
1048 addrp->ss = sib_ss(rex, sib);
1049 have_sib = 1;
1050 } else
1051 have_sib = 0;
1052
1053 switch (mod) {
1054 case 0:
1055 if (rm == 5) {
1056 get_value_inc(addrp->disp, loc, 4, FALSE);
1057 if (have_sib)
1058 addrp->base = 0;
1059 else if (short_addr)
1060 addrp->base = "%eip";
1061 else
1062 addrp->base = "%rip";
1063 } else {
1064 addrp->disp = 0;
1065 addrp->base = db_reg[1][size][rm];
1066 }
1067 break;
1068
1069 case 1:
1070 get_value_inc(disp, loc, 1, TRUE);
1071 addrp->disp = disp;
1072 addrp->base = db_reg[1][size][rm];
1073 break;
1074
1075 case 2:
1076 get_value_inc(disp, loc, 4, FALSE);
1077 addrp->disp = disp;
1078 addrp->base = db_reg[1][size][rm];
1079 break;
1080 }
1081 return (loc);
1082 }
1083
1084 static void
1085 db_print_address(seg, size, rex, addrp)
1086 const char * seg;
1087 int size;
1088 int rex;
1089 struct i_addr * addrp;
1090 {
1091 if (addrp->is_reg) {
1092 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][addrp->disp]);
1093 return;
1094 }
1095
1096 if (seg) {
1097 db_printf("%s:", seg);
1098 }
1099
1100 if (addrp->disp != 0 || (addrp->base == 0 && addrp->index == 0))
1101 db_printsym((db_addr_t)addrp->disp, DB_STGY_ANY);
1102 if (addrp->base != 0 || addrp->index != 0) {
1103 db_printf("(");
1104 if (addrp->base)
1105 db_printf("%s", addrp->base);
1106 if (addrp->index)
1107 db_printf(",%s,%d", addrp->index, 1<<addrp->ss);
1108 db_printf(")");
1109 }
1110 }
1111
1112 /*
1113 * Disassemble floating-point ("escape") instruction
1114 * and return updated location.
1115 */
1116 static db_addr_t
1117 db_disasm_esc(loc, inst, rex, short_addr, size, seg)
1118 db_addr_t loc;
1119 int inst;
1120 int rex;
1121 int short_addr;
1122 int size;
1123 const char * seg;
1124 {
1125 int regmodrm;
1126 const struct finst * fp;
1127 int mod;
1128 struct i_addr address;
1129 const char * name;
1130
1131 get_value_inc(regmodrm, loc, 1, FALSE);
1132 fp = &db_Esc_inst[inst - 0xd8][f_reg(rex, regmodrm)];
1133 mod = f_mod(rex, regmodrm);
1134 if (mod != 3) {
1135 if (*fp->f_name == '\0') {
1136 db_printf("<bad instruction>");
1137 return (loc);
1138 }
1139 /*
1140 * Normal address modes.
1141 */
1142 loc = db_read_address(loc, short_addr, rex, regmodrm, &address);
1143 db_printf("%s", fp->f_name);
1144 switch(fp->f_size) {
1145 case SNGL:
1146 db_printf("s");
1147 break;
1148 case DBLR:
1149 db_printf("l");
1150 break;
1151 case EXTR:
1152 db_printf("t");
1153 break;
1154 case WORD:
1155 db_printf("s");
1156 break;
1157 case LONG:
1158 db_printf("l");
1159 break;
1160 case QUAD:
1161 db_printf("q");
1162 break;
1163 default:
1164 break;
1165 }
1166 db_printf("\t");
1167 db_print_address(seg, BYTE, rex, &address);
1168 }
1169 else {
1170 /*
1171 * 'reg-reg' - special formats
1172 */
1173 switch (fp->f_rrmode) {
1174 case op2(ST,STI):
1175 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1176 db_printf("%s\t%%st,%%st(%d)",name,f_rm(rex, regmodrm));
1177 break;
1178 case op2(STI,ST):
1179 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1180 db_printf("%s\t%%st(%d),%%st",name, f_rm(rex, regmodrm));
1181 break;
1182 case op1(STI):
1183 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1184 db_printf("%s\t%%st(%d)",name, f_rm(rex, regmodrm));
1185 break;
1186 case op1(X):
1187 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)];
1188 if (*name == '\0')
1189 goto bad;
1190 db_printf("%s", name);
1191 break;
1192 case op1(XA):
1193 name = ((const char * const *)fp->f_rrname)[f_rm(rex, regmodrm)];
1194 if (*name == '\0')
1195 goto bad;
1196 db_printf("%s\t%%ax", name);
1197 break;
1198 default:
1199 bad:
1200 db_printf("<bad instruction>");
1201 break;
1202 }
1203 }
1204
1205 return (loc);
1206 }
1207
1208 /*
1209 * Disassemble instruction at 'loc'. 'altfmt' specifies an
1210 * (optional) alternate format. Return address of start of
1211 * next instruction.
1212 */
1213 db_addr_t
1214 db_disasm(loc, altfmt)
1215 db_addr_t loc;
1216 boolean_t altfmt;
1217 {
1218 int inst;
1219 int size;
1220 int short_addr;
1221 const char * seg;
1222 const struct inst * ip;
1223 const char * i_name;
1224 int i_size;
1225 int i_mode;
1226 int rex = 0;
1227 int regmodrm = 0;
1228 boolean_t first;
1229 int displ;
1230 int prefix;
1231 int rep;
1232 int imm;
1233 int imm2;
1234 long imm64;
1235 int len;
1236 struct i_addr address;
1237
1238 get_value_inc(inst, loc, 1, FALSE);
1239 short_addr = FALSE;
1240 size = LONG;
1241 seg = 0;
1242
1243 /*
1244 * Get prefixes
1245 */
1246 rep = FALSE;
1247 prefix = TRUE;
1248 do {
1249 switch (inst) {
1250 case 0x66: /* data16 */
1251 size = WORD;
1252 break;
1253 case 0x67:
1254 short_addr = TRUE;
1255 break;
1256 case 0x26:
1257 seg = "%es";
1258 break;
1259 case 0x36:
1260 seg = "%ss";
1261 break;
1262 case 0x2e:
1263 seg = "%cs";
1264 break;
1265 case 0x3e:
1266 seg = "%ds";
1267 break;
1268 case 0x64:
1269 seg = "%fs";
1270 break;
1271 case 0x65:
1272 seg = "%gs";
1273 break;
1274 case 0xf0:
1275 db_printf("lock ");
1276 break;
1277 case 0xf2:
1278 db_printf("repne ");
1279 break;
1280 case 0xf3:
1281 rep = TRUE;
1282 break;
1283 default:
1284 prefix = FALSE;
1285 break;
1286 }
1287 if (inst >= 0x40 && inst < 0x50) {
1288 rex = inst;
1289 prefix = TRUE;
1290 }
1291 if (prefix) {
1292 get_value_inc(inst, loc, 1, FALSE);
1293 }
1294 } while (prefix);
1295
1296 if (inst >= 0xd8 && inst <= 0xdf) {
1297 loc = db_disasm_esc(loc, inst, rex, short_addr, size, seg);
1298 db_printf("\n");
1299 return (loc);
1300 }
1301
1302 ip = &db_inst_table[inst];
1303 while (ip->i_size == ESC) {
1304 get_value_inc(inst, loc, 1, FALSE);
1305 ip = ((const struct inst * const *)ip->i_extra)[inst>>4];
1306 if (ip == 0) {
1307 ip = &db_bad_inst;
1308 }
1309 else {
1310 ip = &ip[inst&0xf];
1311 }
1312 }
1313
1314 if (ip->i_has_modrm) {
1315 get_value_inc(regmodrm, loc, 1, FALSE);
1316 loc = db_read_address(loc, short_addr, rex, regmodrm, &address);
1317 }
1318
1319 i_name = ip->i_name;
1320 i_size = ip->i_size;
1321 i_mode = ip->i_mode;
1322
1323 if (ip->i_extra == db_Grp1 || ip->i_extra == db_Grp2 ||
1324 ip->i_extra == db_Grp6 || ip->i_extra == db_Grp7 ||
1325 ip->i_extra == db_Grp8 || ip->i_extra == db_Grp9 ||
1326 ip->i_extra == db_Grp15) {
1327 i_name = ((const char * const *)ip->i_extra)[f_reg(rex, regmodrm)];
1328 }
1329 else if (ip->i_extra == db_Grp3) {
1330 ip = ip->i_extra;
1331 ip = &ip[f_reg(rex, regmodrm)];
1332 i_name = ip->i_name;
1333 i_mode = ip->i_mode;
1334 }
1335 else if (ip->i_extra == db_Grp4 || ip->i_extra == db_Grp5) {
1336 ip = ip->i_extra;
1337 ip = &ip[f_reg(rex, regmodrm)];
1338 i_name = ip->i_name;
1339 i_mode = ip->i_mode;
1340 i_size = ip->i_size;
1341 }
1342
1343 /* Special cases that don't fit well in the tables. */
1344 if (ip->i_extra == db_Grp7 && f_mod(rex, regmodrm) == 3) {
1345 switch (regmodrm) {
1346 case 0xc1:
1347 i_name = "vmcall";
1348 i_size = NONE;
1349 i_mode = 0;
1350 break;
1351 case 0xc2:
1352 i_name = "vmlaunch";
1353 i_size = NONE;
1354 i_mode = 0;
1355 break;
1356 case 0xc3:
1357 i_name = "vmresume";
1358 i_size = NONE;
1359 i_mode = 0;
1360 break;
1361 case 0xc4:
1362 i_name = "vmxoff";
1363 i_size = NONE;
1364 i_mode = 0;
1365 break;
1366 case 0xc8:
1367 i_name = "monitor";
1368 i_size = NONE;
1369 i_mode = 0;
1370 break;
1371 case 0xc9:
1372 i_name = "mwait";
1373 i_size = NONE;
1374 i_mode = 0;
1375 break;
1376 case 0xd0:
1377 i_name = "xgetbv";
1378 i_size = NONE;
1379 i_mode = 0;
1380 break;
1381 case 0xd1:
1382 i_name = "xsetbv";
1383 i_size = NONE;
1384 i_mode = 0;
1385 break;
1386 case 0xf8:
1387 i_name = "swapgs";
1388 i_size = NONE;
1389 i_mode = 0;
1390 break;
1391 case 0xf9:
1392 i_name = "rdtscp";
1393 i_size = NONE;
1394 i_mode = 0;
1395 break;
1396 }
1397 }
1398 if (ip->i_extra == db_Grp15 && f_mod(rex, regmodrm) == 3) {
1399 i_name = db_Grp15b[f_reg(rex, regmodrm)];
1400 i_size = NONE;
1401 i_mode = 0;
1402 }
1403
1404 /* Handle instructions identified by mandatory prefixes. */
1405 if (rep == TRUE) {
1406 if (inst == 0x90) {
1407 i_name = "pause";
1408 i_size = NONE;
1409 i_mode = 0;
1410 rep = FALSE;
1411 } else if (ip->i_extra == db_Grp9 && f_mod(rex, regmodrm) != 3 &&
1412 f_reg(rex, regmodrm) == 0x6) {
1413 i_name = "vmxon";
1414 rep = FALSE;
1415 }
1416 }
1417 if (size == WORD) {
1418 if (ip->i_extra == db_Grp9 && f_mod(rex, regmodrm) != 3 &&
1419 f_reg(rex, regmodrm) == 0x6) {
1420 i_name = "vmclear";
1421 }
1422 }
1423 if (rex & REX_W) {
1424 if (strcmp(i_name, "cwde") == 0)
1425 i_name = "cdqe";
1426 else if (strcmp(i_name, "cmpxchg8b") == 0)
1427 i_name = "cmpxchg16b";
1428 }
1429
1430 if (rep == TRUE)
1431 db_printf("repe "); /* XXX repe VS rep */
1432
1433 if (i_size == SDEP) {
1434 if (size == LONG)
1435 db_printf("%s", i_name);
1436 else
1437 db_printf("%s", (const char *)ip->i_extra);
1438 } else if (i_size == ADEP) {
1439 if (short_addr == FALSE)
1440 db_printf("%s", i_name);
1441 else
1442 db_printf("%s", (const char *)ip->i_extra);
1443 }
1444 else {
1445 db_printf("%s", i_name);
1446 if ((inst >= 0x50 && inst <= 0x5f) || inst == 0x68 || inst == 0x6a) {
1447 i_size = NONE;
1448 db_printf("q");
1449 }
1450 if (i_size != NONE) {
1451 if (i_size == BYTE) {
1452 db_printf("b");
1453 size = BYTE;
1454 }
1455 else if (i_size == WORD) {
1456 db_printf("w");
1457 size = WORD;
1458 }
1459 else if (size == WORD)
1460 db_printf("w");
1461 else {
1462 if (rex & REX_W)
1463 db_printf("q");
1464 else
1465 db_printf("l");
1466 }
1467 }
1468 }
1469 db_printf("\t");
1470 for (first = TRUE;
1471 i_mode != 0;
1472 i_mode >>= 8, first = FALSE)
1473 {
1474 if (!first)
1475 db_printf(",");
1476
1477 switch (i_mode & 0xFF) {
1478
1479 case E:
1480 db_print_address(seg, size, rex, &address);
1481 break;
1482
1483 case Eind:
1484 db_printf("*");
1485 db_print_address(seg, size, rex, &address);
1486 break;
1487
1488 case El:
1489 db_print_address(seg, (rex & REX_W) ? QUAD : LONG, rex, &address);
1490 break;
1491
1492 case EL:
1493 db_print_address(seg, LONG, 0, &address);
1494 break;
1495
1496 case Ew:
1497 db_print_address(seg, WORD, rex, &address);
1498 break;
1499
1500 case Eb:
1501 db_print_address(seg, BYTE, rex, &address);
1502 break;
1503
1504 case R:
1505 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(size == LONG && (rex & REX_W)) ? QUAD : size][f_reg(rex, regmodrm)]);
1506 break;
1507
1508 case Rw:
1509 db_printf("%s", db_reg[rex != 0 ? 1 : 0][WORD][f_reg(rex, regmodrm)]);
1510 break;
1511
1512 case Rq:
1513 db_printf("%s", db_reg[rex != 0 ? 1 : 0][QUAD][f_reg(rex, regmodrm)]);
1514 break;
1515
1516 case Ri:
1517 db_printf("%s", db_reg[0][QUAD][f_rm(rex, inst)]);
1518 break;
1519
1520 case Ril:
1521 db_printf("%s", db_reg[rex != 0 ? 1 : 0][(rex & REX_R) ? QUAD : LONG][f_rm(rex, inst)]);
1522 break;
1523
1524 case S:
1525 db_printf("%s", db_seg_reg[f_reg(rex, regmodrm)]);
1526 break;
1527
1528 case Si:
1529 db_printf("%s", db_seg_reg[f_reg(rex, inst)]);
1530 break;
1531
1532 case A:
1533 db_printf("%s", db_reg[rex != 0 ? 1 : 0][size][0]); /* acc */
1534 break;
1535
1536 case BX:
1537 if (seg)
1538 db_printf("%s:", seg);
1539 db_printf("(%s)", short_addr ? "%bx" : "%ebx");
1540 break;
1541
1542 case CL:
1543 db_printf("%%cl");
1544 break;
1545
1546 case DX:
1547 db_printf("%%dx");
1548 break;
1549
1550 case SI:
1551 if (seg)
1552 db_printf("%s:", seg);
1553 db_printf("(%s)", short_addr ? "%si" : "%rsi");
1554 break;
1555
1556 case DI:
1557 db_printf("%%es:(%s)", short_addr ? "%di" : "%rdi");
1558 break;
1559
1560 case CR:
1561 db_printf("%%cr%d", f_reg(rex, regmodrm));
1562 break;
1563
1564 case DR:
1565 db_printf("%%dr%d", f_reg(rex, regmodrm));
1566 break;
1567
1568 case TR:
1569 db_printf("%%tr%d", f_reg(rex, regmodrm));
1570 break;
1571
1572 case I:
1573 len = db_lengths[size];
1574 get_value_inc(imm, loc, len, FALSE);
1575 db_printf("$%#r", imm);
1576 break;
1577
1578 case Is:
1579 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size];
1580 get_value_inc(imm, loc, len, FALSE);
1581 db_printf("$%+#r", imm);
1582 break;
1583
1584 case Ib:
1585 get_value_inc(imm, loc, 1, FALSE);
1586 db_printf("$%#r", imm);
1587 break;
1588
1589 case Iba:
1590 get_value_inc(imm, loc, 1, FALSE);
1591 if (imm != 0x0a)
1592 db_printf("$%#r", imm);
1593 break;
1594
1595 case Ibs:
1596 get_value_inc(imm, loc, 1, TRUE);
1597 if (size == WORD)
1598 imm &= 0xFFFF;
1599 db_printf("$%+#r", imm);
1600 break;
1601
1602 case Iw:
1603 get_value_inc(imm, loc, 2, FALSE);
1604 db_printf("$%#r", imm);
1605 break;
1606
1607 case Ilq:
1608 len = db_lengths[rex & REX_W ? QUAD : LONG];
1609 get_value_inc(imm64, loc, len, FALSE);
1610 db_printf("$%#lr", imm64);
1611 break;
1612
1613 case O:
1614 len = (short_addr ? 2 : 4);
1615 get_value_inc(displ, loc, len, FALSE);
1616 if (seg)
1617 db_printf("%s:%+#r",seg, displ);
1618 else
1619 db_printsym((db_addr_t)displ, DB_STGY_ANY);
1620 break;
1621
1622 case Db:
1623 get_value_inc(displ, loc, 1, TRUE);
1624 displ += loc;
1625 if (size == WORD)
1626 displ &= 0xFFFF;
1627 db_printsym((db_addr_t)displ, DB_STGY_XTRN);
1628 break;
1629
1630 case Dl:
1631 len = db_lengths[(size == LONG && (rex & REX_W)) ? QUAD : size];
1632 get_value_inc(displ, loc, len, FALSE);
1633 displ += loc;
1634 if (size == WORD)
1635 displ &= 0xFFFF;
1636 db_printsym((db_addr_t)displ, DB_STGY_XTRN);
1637 break;
1638
1639 case o1:
1640 db_printf("$1");
1641 break;
1642
1643 case o3:
1644 db_printf("$3");
1645 break;
1646
1647 case OS:
1648 len = db_lengths[size];
1649 get_value_inc(imm, loc, len, FALSE); /* offset */
1650 get_value_inc(imm2, loc, 2, FALSE); /* segment */
1651 db_printf("$%#r,%#r", imm2, imm);
1652 break;
1653 }
1654 }
1655 db_printf("\n");
1656 return (loc);
1657 }
Cache object: f6476877b3731205968cc876b3fc1eaf
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