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Improve error reporting.
[wine/multimedia.git] / programs / winedbg / db_disasm.c
blobf90c0b71986911e04af006cf857272dc604a7563
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 "AS IS"
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 Mellon
24 * the rights to redistribute these changes.
25 */
26 /*
27 * HISTORY
28 *
29 * Revision 2.6 92/01/03 20:05:00 dbg
30 * Add a switch to disassemble 16-bit code.
31 * Fix spelling of 'lods' opcodes.
32 * [91/10/30 dbg]
33 *
34 * Revision 2.5 91/10/09 16:05:58 af
35 * Supported disassemble of non current task by passing task parameter.
36 * [91/08/29 tak]
37 *
38 * Revision 2.4 91/05/14 16:05:04 mrt
39 * Correcting copyright
40 *
41 * Revision 2.3 91/02/05 17:11:03 mrt
42 * Changed to new Mach copyright
43 * [91/02/01 17:31:03 mrt]
44 *
45 * Revision 2.2 90/08/27 21:55:56 dbg
46 * Fix register operand for move to/from control/test/debug
47 * register instructions. Add i486 instructions.
48 * [90/08/27 dbg]
49 *
50 * Import db_sym.h. Print instruction displacements in
51 * current radix (signed). Change calling sequence of
52 * db_disasm.
53 * [90/08/21 dbg]
54 * Fix includes.
55 * [90/08/08 dbg]
56 * Created.
57 * [90/07/25 dbg]
58 *
59 */
60
61 /*
62 * Instruction disassembler.
63 */
64
65 #include "debugger.h"
66
67 #ifdef __i386__
68
69 /*
70 * Switch to disassemble 16-bit code.
71 */
72 static BOOL db_disasm_16 = FALSE;
73
74 /*
75 * Flag to indicate whether we need to display instruction,
76 * or whether we just need to know the address of the next
77 * instruction.
78 */
79 static BOOL db_display = FALSE;
80
81 /*
82 * Size attributes
83 */
84 #define BYTE 0
85 #define WORD 1
86 #define LONG 2
87 #define QUAD 3
88 #define SNGL 4
89 #define DBLR 5
90 #define EXTR 6
91 #define SDEP 7
92 #define NONE 8
93
94 /*
95 * Addressing modes
96 */
97 #define E 1 /* general effective address */
98 #define Eind 2 /* indirect address (jump, call) */
99 #define Ew 3 /* address, word size */
100 #define Eb 4 /* address, byte size */
101 #define R 5 /* register, in 'reg' field */
102 #define Rw 6 /* word register, in 'reg' field */
103 #define Ri 7 /* register in instruction */
104 #define S 8 /* segment reg, in 'reg' field */
105 #define Si 9 /* segment reg, in instruction */
106 #define A 10 /* accumulator */
107 #define BX 11 /* (bx) */
108 #define CL 12 /* cl, for shifts */
109 #define DX 13 /* dx, for IO */
110 #define SI 14 /* si */
111 #define DI 15 /* di */
112 #define CR 16 /* control register */
113 #define DR 17 /* debug register */
114 #define TR 18 /* test register */
115 #define I 19 /* immediate, unsigned */
116 #define Is 20 /* immediate, signed */
117 #define Ib 21 /* byte immediate, unsigned */
118 #define Ibs 22 /* byte immediate, signed */
119 #define Iw 23 /* word immediate, unsigned */
120 #define Il 24 /* long immediate */
121 #define O 25 /* direct address */
122 #define Db 26 /* byte displacement from EIP */
123 #define Dl 27 /* long displacement from EIP */
124 #define o1 28 /* constant 1 */
125 #define o3 29 /* constant 3 */
126 #define OS 30 /* immediate offset/segment */
127 #define ST 31 /* FP stack top */
128 #define STI 32 /* FP stack */
129 #define X 33 /* extended FP op */
130 #define XA 34 /* for 'fstcw %ax' */
131 #define MX 35 /* special register (MMX reg %mm0-7) */
132 #define EMX 36 /* special register (MMX reg %mm0-7) */
133 #define XMM 37 /* special register (floating point reg %xmm0-7) */
134 #define EXMM 38 /* special register (floating point reg %xmm0-7) */
135
136 struct inst {
137 const char *i_name; /* name */
138 short i_has_modrm; /* has regmodrm byte */
139 short i_size; /* operand size */
140 int i_mode; /* addressing modes */
141 const char *i_extra; /* pointer to extra opcode table */
142 };
143
144 #define op1(x) (x)
145 #define op2(x,y) ((x)|((y)<<8))
146 #define op3(x,y,z) ((x)|((y)<<8)|((z)<<16))
147
148 struct finst {
149 const char *f_name; /* name for memory instruction */
150 int f_size; /* size for memory instruction */
151 int f_rrmode; /* mode for rr instruction */
152 const char *f_rrname; /* name for rr instruction
153 (or pointer to table) */
154 };
155
156 static const char * const db_Grp6[] = {
157 "sldt",
158 "str",
159 "lldt",
160 "ltr",
161 "verr",
162 "verw",
163 "",
164 ""
165 };
166
167 static const char * const db_Grp7[] = {
168 "sgdt",
169 "sidt",
170 "lgdt",
171 "lidt",
172 "smsw",
173 "",
174 "lmsw",
175 "invlpg"
176 };
177
178 static const char * const db_Grp8[] = {
179 "",
180 "",
181 "",
182 "",
183 "bt",
184 "bts",
185 "btr",
186 "btc"
187 };
188
189 static const char * const db_Grp10[] = {
190 "(bad)",
191 "(bad)",
192 "psrlw",
193 "(bad)",
194 "psraw",
195 "(bad)",
196 "psllw",
197 "(bad)"
198 };
199
200 static const char * const db_Grp11[] = {
201 "(bad)",
202 "(bad)",
203 "psrld",
204 "(bad)",
205 "psrad",
206 "(bad)",
207 "pslld",
208 "(bad)"
209 };
210
211 static const char * const db_Grp12[] = {
212 "(bad)",
213 "(bad)",
214 "psrlq",
215 "(bad)",
216 "psraq",
217 "(bad)",
218 "psllq",
219 "(bad)"
220 };
221
222 static const struct inst db_inst_0f0x[] = {
223 /*00*/ { "", TRUE, NONE, op1(Ew), (char *)db_Grp6 },
224 /*01*/ { "", TRUE, NONE, op1(Ew), (char *)db_Grp7 },
225 /*02*/ { "lar", TRUE, LONG, op2(E,R), 0 },
226 /*03*/ { "lsl", TRUE, LONG, op2(E,R), 0 },
227 /*04*/ { "", FALSE, NONE, 0, 0 },
228 /*05*/ { "", FALSE, NONE, 0, 0 },
229 /*06*/ { "clts", FALSE, NONE, 0, 0 },
230 /*07*/ { "", FALSE, NONE, 0, 0 },
231
232 /*08*/ { "invd", FALSE, NONE, 0, 0 },
233 /*09*/ { "wbinvd",FALSE, NONE, 0, 0 },
234 /*0a*/ { "", FALSE, NONE, 0, 0 },
235 /*0b*/ { "", FALSE, NONE, 0, 0 },
236 /*0c*/ { "", FALSE, NONE, 0, 0 },
237 /*0d*/ { "", FALSE, NONE, 0, 0 },
238 /*0e*/ { "", FALSE, NONE, 0, 0 },
239 /*0f*/ { "", FALSE, NONE, 0, 0 },
240 };
241
242 static const struct inst db_inst_0f2x[] = {
243 /*20*/ { "mov", TRUE, LONG, op2(CR,E), 0 }, /* use E for reg */
244 /*21*/ { "mov", TRUE, LONG, op2(DR,E), 0 }, /* since mod == 11 */
245 /*22*/ { "mov", TRUE, LONG, op2(E,CR), 0 },
246 /*23*/ { "mov", TRUE, LONG, op2(E,DR), 0 },
247 /*24*/ { "mov", TRUE, LONG, op2(TR,E), 0 },
248 /*25*/ { "(bad)", FALSE, NONE, 0, 0 },
249 /*26*/ { "mov", TRUE, LONG, op2(E,TR), 0 },
250 /*27*/ { "(bad)", FALSE, NONE, 0, 0 },
251
252 /*28*/ { "", FALSE, NONE, 0, 0 },
253 /*29*/ { "", FALSE, NONE, 0, 0 },
254 /*2a*/ { "", FALSE, NONE, 0, 0 },
255 /*2b*/ { "", FALSE, NONE, 0, 0 },
256 /*2c*/ { "", FALSE, NONE, 0, 0 },
257 /*2d*/ { "", FALSE, NONE, 0, 0 },
258 /*2e*/ { "", FALSE, NONE, 0, 0 },
259 /*2f*/ { "", FALSE, NONE, 0, 0 },
260 };
261
262 static const struct inst db_inst_0f3x[] = {
263 /*30*/ { "wrmsr", FALSE, NONE, 0, 0 },
264 /*31*/ { "rdtsc", FALSE, NONE, 0, 0 },
265 /*32*/ { "rdmsr", FALSE, NONE, 0, 0 },
266 /*33*/ { "rdpmc", FALSE, NONE, 0, 0 },
267 /*34*/ { "sysenter",FALSE,NONE, 0, 0 },
268 /*35*/ { "sysexit",FALSE,NONE, 0, 0 },
269 /*36*/ { "(bad)", FALSE, NONE, 0, 0 },
270 /*37*/ { "(bad)", FALSE, NONE, 0, 0 },
271
272 /*38*/ { "(bad)",FALSE, NONE, 0, 0 },
273 /*39*/ { "(bad)",FALSE, NONE, 0, 0 },
274 /*3a*/ { "(bad)",FALSE, NONE, 0, 0 },
275 /*3b*/ { "(bad)",FALSE, NONE, 0, 0 },
276 /*3c*/ { "(bad)",FALSE, NONE, 0, 0 },
277 /*3d*/ { "(bad)",FALSE, NONE, 0, 0 },
278 /*3e*/ { "(bad)",FALSE, NONE, 0, 0 },
279 /*3f*/ { "(bad)",FALSE, NONE, 0, 0 },
280 };
281
282 static const struct inst db_inst_0f4x[] = {
283 /*40*/ { "cmovo", TRUE, NONE, op2(E, R), 0 },
284 /*41*/ { "cmovno", TRUE, NONE, op2(E, R), 0 },
285 /*42*/ { "cmovnae",TRUE, NONE, op2(E, R), 0 },
286 /*43*/ { "cmovnb", TRUE, NONE, op2(E, R), 0 },
287 /*44*/ { "cmove", TRUE, NONE, op2(E, R), 0 },
288 /*45*/ { "cmovne", TRUE, NONE, op2(E, R), 0 },
289 /*46*/ { "cmovna", TRUE, NONE, op2(E, R), 0 },
290 /*47*/ { "cmova", TRUE, NONE, op2(E, R), 0 },
291
292 /*48*/ { "cmovs", TRUE, NONE, op2(E, R), 0 },
293 /*49*/ { "cmovns", TRUE, NONE, op2(E, R), 0 },
294 /*4a*/ { "cmovpe", TRUE, NONE, op2(E, R), 0 },
295 /*4b*/ { "cmovpo", TRUE, NONE, op2(E, R), 0 },
296 /*4c*/ { "cmovl", TRUE, NONE, op2(E, R), 0 },
297 /*4d*/ { "cmovge", TRUE, NONE, op2(E, R), 0 },
298 /*4e*/ { "cmovle", TRUE, NONE, op2(E, R), 0 },
299 /*4f*/ { "cmovnle",TRUE, NONE, op2(E, R), 0 },
300 };
301
302 static const struct inst db_inst_0f5x[] = {
303 /*50*/ { "movmskps",TRUE, NONE, op2(E, XMM), 0 },
304 /*51*/ { "sqrtps", TRUE, NONE, op2(XMM, EXMM), 0 },
305 /*52*/ { "rsqrtps", TRUE, NONE, op2(XMM, EXMM), 0 },
306 /*53*/ { "rcpps", TRUE, NONE, op2(XMM, EXMM), 0 },
307 /*54*/ { "andps", TRUE, NONE, op2(XMM, EXMM), 0 },
308 /*55*/ { "andnps", TRUE, NONE, op2(XMM, EXMM), 0 },
309 /*56*/ { "orps", TRUE, NONE, op2(XMM, EXMM), 0 },
310 /*57*/ { "xorps", TRUE, NONE, op2(XMM, EXMM), 0 },
311
312 /*58*/ { "addps", TRUE, NONE, op2(XMM, EXMM), 0 },
313 /*59*/ { "mulps", TRUE, NONE, op2(XMM, EXMM), 0 },
314 /*5a*/ { "(bad)", FALSE, NONE, 0, 0 },
315 /*5b*/ { "(bad)", FALSE, NONE, 0, 0 },
316 /*5c*/ { "subps", TRUE, NONE, op2(XMM, EXMM), 0 },
317 /*5d*/ { "minps", TRUE, NONE, op2(XMM, EXMM), 0 },
318 /*5e*/ { "divps", TRUE, NONE, op2(XMM, EXMM), 0 },
319 /*5f*/ { "maxps", TRUE, NONE, op2(XMM, EXMM), 0 },
320 };
321
322 static const struct inst db_inst_0f6x[] = {
323 /*60*/ { "punpcklbw", TRUE, NONE, op2(E, MX), 0 },
324 /*61*/ { "punpcklwd", TRUE, NONE, op2(E, MX), 0 },
325 /*62*/ { "punpckldq", TRUE, NONE, op2(E, MX), 0 },
326 /*63*/ { "packsswb", TRUE, NONE, op2(E, MX), 0 },
327 /*64*/ { "pcmpgtb", TRUE, NONE, op2(E, MX), 0 },
328 /*65*/ { "pcmpgtw", TRUE, NONE, op2(E, MX), 0 },
329 /*66*/ { "pcmpgtd", TRUE, NONE, op2(E, MX), 0 },
330 /*67*/ { "packuswb", TRUE, NONE, op2(E, MX), 0 },
331
332 /*68*/ { "punpckhbw", TRUE, NONE, op2(E, MX), 0 },
333 /*69*/ { "punpckhwd", TRUE, NONE, op2(E, MX), 0 },
334 /*6a*/ { "punpckhdq", TRUE, NONE, op2(E, MX), 0 },
335 /*6b*/ { "packssdw", TRUE, NONE, op2(E, MX), 0 },
336 /*6c*/ { "(bad)", TRUE, NONE, 0, 0 },
337 /*6d*/ { "(bad)", TRUE, NONE, 0, 0 },
338 /*6e*/ { "movd", TRUE, NONE, op2(E, MX), 0 },
339 /*6f*/ { "movq", TRUE, NONE, op2(E, MX), 0 },
340 };
341
342 static const struct inst db_inst_0f7x[] = {
343 /*70*/ { "pshufw", TRUE, NONE, op2(MX, EMX), 0 },
344 /*71*/ { "(grp10)", TRUE, BYTE, op2(EMX, I), (char*)db_Grp10 },
345 /*72*/ { "(grp11)", TRUE, BYTE, op2(EMX, I), (char*)db_Grp11 },
346 /*73*/ { "(grp12)", TRUE, BYTE, op2(EMX, I), (char*)db_Grp12 },
347 /*74*/ { "pcmpeqb", TRUE, NONE, op2(E, MX), 0 },
348 /*75*/ { "pcmpeqw", TRUE, NONE, op2(E, MX), 0 },
349 /*76*/ { "pcmpeqd", TRUE, NONE, op2(E, MX), 0 },
350 /*77*/ { "emms", FALSE,NONE, 0, 0 },
351
352 /*78*/ { "(bad)", TRUE, NONE, 0, 0 },
353 /*79*/ { "(bad)", TRUE, NONE, 0, 0 },
354 /*7a*/ { "(bad)", TRUE, NONE, 0, 0 },
355 /*7b*/ { "(bad)", TRUE, NONE, 0, 0 },
356 /*7c*/ { "(bad)", TRUE, NONE, 0, 0 },
357 /*7d*/ { "(bad)", TRUE, NONE, 0, 0 },
358 /*7e*/ { "movd", TRUE, NONE, op2(E, MX), 0 },
359 /*7f*/ { "movq", TRUE, NONE, op2(EMX, MX), 0 },
360 };
361
362 static const struct inst db_inst_0f8x[] = {
363 /*80*/ { "jo", FALSE, NONE, op1(Dl), 0 },
364 /*81*/ { "jno", FALSE, NONE, op1(Dl), 0 },
365 /*82*/ { "jb", FALSE, NONE, op1(Dl), 0 },
366 /*83*/ { "jnb", FALSE, NONE, op1(Dl), 0 },
367 /*84*/ { "jz", FALSE, NONE, op1(Dl), 0 },
368 /*85*/ { "jnz", FALSE, NONE, op1(Dl), 0 },
369 /*86*/ { "jbe", FALSE, NONE, op1(Dl), 0 },
370 /*87*/ { "jnbe", FALSE, NONE, op1(Dl), 0 },
371
372 /*88*/ { "js", FALSE, NONE, op1(Dl), 0 },
373 /*89*/ { "jns", FALSE, NONE, op1(Dl), 0 },
374 /*8a*/ { "jp", FALSE, NONE, op1(Dl), 0 },
375 /*8b*/ { "jnp", FALSE, NONE, op1(Dl), 0 },
376 /*8c*/ { "jl", FALSE, NONE, op1(Dl), 0 },
377 /*8d*/ { "jnl", FALSE, NONE, op1(Dl), 0 },
378 /*8e*/ { "jle", FALSE, NONE, op1(Dl), 0 },
379 /*8f*/ { "jnle", FALSE, NONE, op1(Dl), 0 },
380 };
381
382 static const struct inst db_inst_0f9x[] = {
383 /*90*/ { "seto", TRUE, NONE, op1(Eb), 0 },
384 /*91*/ { "setno", TRUE, NONE, op1(Eb), 0 },
385 /*92*/ { "setb", TRUE, NONE, op1(Eb), 0 },
386 /*93*/ { "setnb", TRUE, NONE, op1(Eb), 0 },
387 /*94*/ { "setz", TRUE, NONE, op1(Eb), 0 },
388 /*95*/ { "setnz", TRUE, NONE, op1(Eb), 0 },
389 /*96*/ { "setbe", TRUE, NONE, op1(Eb), 0 },
390 /*97*/ { "setnbe",TRUE, NONE, op1(Eb), 0 },
391
392 /*98*/ { "sets", TRUE, NONE, op1(Eb), 0 },
393 /*99*/ { "setns", TRUE, NONE, op1(Eb), 0 },
394 /*9a*/ { "setp", TRUE, NONE, op1(Eb), 0 },
395 /*9b*/ { "setnp", TRUE, NONE, op1(Eb), 0 },
396 /*9c*/ { "setl", TRUE, NONE, op1(Eb), 0 },
397 /*9d*/ { "setnl", TRUE, NONE, op1(Eb), 0 },
398 /*9e*/ { "setle", TRUE, NONE, op1(Eb), 0 },
399 /*9f*/ { "setnle",TRUE, NONE, op1(Eb), 0 },
400 };
401
402 static const struct inst db_inst_0fax[] = {
403 /*a0*/ { "push", FALSE, NONE, op1(Si), 0 },
404 /*a1*/ { "pop", FALSE, NONE, op1(Si), 0 },
405 /*a2*/ { "cpuid", FALSE, NONE, 0, 0 },
406 /*a3*/ { "bt", TRUE, LONG, op2(E,R), 0 },
407 /*a4*/ { "shld", TRUE, LONG, op3(Ib,E,R), 0 },
408 /*a5*/ { "shld", TRUE, LONG, op3(CL,E,R), 0 },
409 /*a6*/ { "", FALSE, NONE, 0, 0 },
410 /*a7*/ { "", FALSE, NONE, 0, 0 },
411
412 /*a8*/ { "push", FALSE, NONE, op1(Si), 0 },
413 /*a9*/ { "pop", FALSE, NONE, op1(Si), 0 },
414 /*aa*/ { "", FALSE, NONE, 0, 0 },
415 /*ab*/ { "bts", TRUE, LONG, op2(E,R), 0 },
416 /*ac*/ { "shrd", TRUE, LONG, op3(Ib,E,R), 0 },
417 /*ad*/ { "shrd", TRUE, LONG, op3(CL,E,R), 0 },
418 /*a6*/ { "", FALSE, NONE, 0, 0 },
419 /*a7*/ { "imul", TRUE, LONG, op2(E,R), 0 },
420 };
421
422 static const struct inst db_inst_0fbx[] = {
423 /*b0*/ { "cmpxchg",TRUE, BYTE, op2(E, R), 0 },
424 /*b1*/ { "cmpxchg",TRUE, LONG, op2(E, R), 0 },
425 /*b2*/ { "lss", TRUE, LONG, op2(E, R), 0 },
426 /*b3*/ { "bts", TRUE, LONG, op2(R, E), 0 },
427 /*b4*/ { "lfs", TRUE, LONG, op2(E, R), 0 },
428 /*b5*/ { "lgs", TRUE, LONG, op2(E, R), 0 },
429 /*b6*/ { "movzb", TRUE, LONG, op2(E, R), 0 },
430 /*b7*/ { "movzw", TRUE, LONG, op2(E, R), 0 },
431
432 /*b8*/ { "", FALSE, NONE, 0, 0 },
433 /*b9*/ { "", FALSE, NONE, 0, 0 },
434 /*ba*/ { "", TRUE, LONG, op2(Ib, E), (char *)db_Grp8 },
435 /*bb*/ { "btc", TRUE, LONG, op2(R, E), 0 },
436 /*bc*/ { "bsf", TRUE, LONG, op2(E, R), 0 },
437 /*bd*/ { "bsr", TRUE, LONG, op2(E, R), 0 },
438 /*be*/ { "movsb", TRUE, LONG, op2(E, R), 0 },
439 /*bf*/ { "movsw", TRUE, LONG, op2(E, R), 0 },
440 };
441
442 static const struct inst db_inst_0fcx[] = {
443 /*c0*/ { "xadd", TRUE, BYTE, op2(R, E), 0 },
444 /*c1*/ { "xadd", TRUE, LONG, op2(R, E), 0 },
445 /*c2*/ { "", FALSE, NONE, 0, 0 },
446 /*c3*/ { "", FALSE, NONE, 0, 0 },
447 /*c4*/ { "", FALSE, NONE, 0, 0 },
448 /*c5*/ { "", FALSE, NONE, 0, 0 },
449 /*c6*/ { "", FALSE, NONE, 0, 0 },
450 /*c7*/ { "", FALSE, NONE, 0, 0 },
451 /*c8*/ { "bswap", FALSE, LONG, op1(Ri), 0 },
452 /*c9*/ { "bswap", FALSE, LONG, op1(Ri), 0 },
453 /*ca*/ { "bswap", FALSE, LONG, op1(Ri), 0 },
454 /*cb*/ { "bswap", FALSE, LONG, op1(Ri), 0 },
455 /*cc*/ { "bswap", FALSE, LONG, op1(Ri), 0 },
456 /*cd*/ { "bswap", FALSE, LONG, op1(Ri), 0 },
457 /*ce*/ { "bswap", FALSE, LONG, op1(Ri), 0 },
458 /*cf*/ { "bswap", FALSE, LONG, op1(Ri), 0 },
459 };
460
461 static const struct inst db_inst_0fdx[] = {
462 /*d0*/ { "(bad)", FALSE, NONE,0, 0 },
463 /*d1*/ { "psrlw", TRUE, NONE,op2(MX,EMX), 0 },
464 /*d2*/ { "psrld", TRUE, NONE,op2(MX,EMX), 0 },
465 /*d3*/ { "psrld", TRUE, NONE,op2(MX,EMX), 0 },
466 /*d4*/ { "(bad)", FALSE, NONE,0, 0 },
467 /*d5*/ { "pmulww", TRUE, NONE,op2(MX,EMX), 0 },
468 /*d6*/ { "(bad)", FALSE, NONE,0, 0 },
469 /*d7*/ { "pmovmskb",FALSE, NONE,op2(MX,EMX),0 },
470 /*d8*/ { "psubusb", TRUE, NONE,op2(MX,EMX), 0 },
471 /*d9*/ { "psubusw", TRUE, NONE,op2(MX,EMX), 0 },
472 /*da*/ { "pminub", TRUE, NONE,op2(MX,EMX), 0 },
473 /*db*/ { "pand", TRUE, NONE,op2(MX,EMX), 0 },
474 /*dc*/ { "paddusb", TRUE, NONE,op2(MX,EMX), 0 },
475 /*dd*/ { "paddusw", TRUE, NONE,op2(MX,EMX), 0 },
476 /*de*/ { "pmaxub", TRUE, NONE,op2(MX,EMX), 0 },
477 /*df*/ { "pandn", TRUE, NONE,op2(MX,EMX), 0 },
478 };
479
480 static const struct inst db_inst_0fex[] = {
481 /*e0*/ { "pavgb", TRUE, NONE, op2(MX, EMX), 0 },
482 /*e1*/ { "psraw", TRUE, NONE, op2(MX, EMX), 0 },
483 /*e2*/ { "psrad", TRUE, NONE, op2(MX, EMX), 0 },
484 /*e3*/ { "pavgw", TRUE, NONE, op2(MX, EMX), 0 },
485 /*e4*/ { "pmulhuw",TRUE, NONE, op2(MX, EMX), 0 },
486 /*e5*/ { "pmulhw", TRUE, NONE, op2(MX, EMX), 0 },
487 /*e6*/ { "(bad)", FALSE,NONE, 0, 0 },
488 /*e7*/ { "movntq", TRUE, NONE, op2(MX, EMX), 0 },
489 /*e8*/ { "psubsb", TRUE, NONE, op2(MX, EMX), 0 },
490 /*e9*/ { "psubsw", TRUE, NONE, op2(MX, EMX), 0 },
491 /*ea*/ { "pminsw", TRUE, NONE, op2(MX, EMX), 0 },
492 /*eb*/ { "por", TRUE, NONE, op2(MX, EMX), 0 },
493 /*ec*/ { "paddsb", TRUE, NONE, op2(MX, EMX), 0 },
494 /*ed*/ { "paddsw", TRUE, NONE, op2(MX, EMX), 0 },
495 /*ee*/ { "pmaxsw", TRUE, NONE, op2(MX, EMX), 0 },
496 /*ef*/ { "pxor", TRUE, NONE, op2(MX, EMX), 0 },
497 };
498
499 static const struct inst db_inst_0ffx[] = {
500 /*f0*/ { "(bad)", FALSE,NONE, 0, 0 },
501 /*f1*/ { "psllw", TRUE, NONE, op2(MX, EMX), 0 },
502 /*f2*/ { "pslld", TRUE, NONE, op2(MX, EMX), 0 },
503 /*f3*/ { "psllq", TRUE, NONE, op2(MX, EMX), 0 },
504 /*f4*/ { "(bad)", FALSE,NONE, 0, 0 },
505 /*f5*/ { "pmaddwd",TRUE, NONE, op2(MX, EMX), 0 },
506 /*f6*/ { "psadbw", TRUE, NONE, op2(MX, EMX), 0 },
507 /*f7*/ { "maskmovq",TRUE,NONE, op2(MX, EMX), 0 },
508 /*f8*/ { "psubb", TRUE, NONE, op2(MX, EMX), 0 },
509 /*f9*/ { "psubw", TRUE, NONE, op2(MX, EMX), 0 },
510 /*fa*/ { "psubd", TRUE, NONE, op2(MX, EMX), 0 },
511 /*fb*/ { "(bad)", FALSE,NONE, 0, 0 },
512 /*fc*/ { "paddb", TRUE, NONE, op2(MX, EMX), 0 },
513 /*fd*/ { "paddw", TRUE, NONE, op2(MX, EMX), 0 },
514 /*fe*/ { "paddd", TRUE, NONE, op2(MX, EMX), 0 },
515 /*ff*/ { "(bad)", FALSE, NONE, 0, 0 },
516 };
517
518 static const struct inst * const db_inst_0f[] = {
519 db_inst_0f0x,
520 0,
521 db_inst_0f2x,
522 db_inst_0f3x,
523 db_inst_0f4x,
524 db_inst_0f5x,
525 db_inst_0f6x,
526 db_inst_0f7x,
527 db_inst_0f8x,
528 db_inst_0f9x,
529 db_inst_0fax,
530 db_inst_0fbx,
531 db_inst_0fcx,
532 db_inst_0fdx,
533 db_inst_0fex,
534 db_inst_0ffx
535 };
536
537 static const char * const db_Esc92[] = {
538 "fnop", "", "", "", "", "", "", ""
539 };
540 static const char * const db_Esc93[] = {
541 "", "", "", "", "", "", "", ""
542 };
543 static const char * const db_Esc94[] = {
544 "fchs", "fabs", "", "", "ftst", "fxam", "", ""
545 };
546 static const char * const db_Esc95[] = {
547 "fld1", "fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz",""
548 };
549 static const char * const db_Esc96[] = {
550 "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp",
551 "fincstp"
552 };
553 static const char * const db_Esc97[] = {
554 "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos"
555 };
556
557 static const char * const db_Esca4[] = {
558 "", "fucompp","", "", "", "", "", ""
559 };
560
561 static const char * const db_Escb4[] = {
562 "", "", "fnclex","fninit","", "", "", ""
563 };
564
565 static const char * const db_Esce3[] = {
566 "", "fcompp","", "", "", "", "", ""
567 };
568
569 static const char * const db_Escf4[] = {
570 "fnstsw","", "", "", "", "", "", ""
571 };
572
573 static const struct finst db_Esc8[] = {
574 /*0*/ { "fadd", SNGL, op2(STI,ST), 0 },
575 /*1*/ { "fmul", SNGL, op2(STI,ST), 0 },
576 /*2*/ { "fcom", SNGL, op2(STI,ST), 0 },
577 /*3*/ { "fcomp", SNGL, op2(STI,ST), 0 },
578 /*4*/ { "fsub", SNGL, op2(STI,ST), 0 },
579 /*5*/ { "fsubr", SNGL, op2(STI,ST), 0 },
580 /*6*/ { "fdiv", SNGL, op2(STI,ST), 0 },
581 /*7*/ { "fdivr", SNGL, op2(STI,ST), 0 },
582 };
583
584 static const struct finst db_Esc9[] = {
585 /*0*/ { "fld", SNGL, op1(STI), 0 },
586 /*1*/ { "", NONE, op1(STI), "fxch" },
587 /*2*/ { "fst", SNGL, op1(X), (char *)db_Esc92 },
588 /*3*/ { "fstp", SNGL, op1(X), (char *)db_Esc93 },
589 /*4*/ { "fldenv", NONE, op1(X), (char *)db_Esc94 },
590 /*5*/ { "fldcw", NONE, op1(X), (char *)db_Esc95 },
591 /*6*/ { "fnstenv",NONE, op1(X), (char *)db_Esc96 },
592 /*7*/ { "fnstcw", NONE, op1(X), (char *)db_Esc97 },
593 };
594
595 static const struct finst db_Esca[] = {
596 /*0*/ { "fiadd", WORD, 0, 0 },
597 /*1*/ { "fimul", WORD, 0, 0 },
598 /*2*/ { "ficom", WORD, 0, 0 },
599 /*3*/ { "ficomp", WORD, 0, 0 },
600 /*4*/ { "fisub", WORD, op1(X), (char *)db_Esca4 },
601 /*5*/ { "fisubr", WORD, 0, 0 },
602 /*6*/ { "fidiv", WORD, 0, 0 },
603 /*7*/ { "fidivr", WORD, 0, 0 }
604 };
605
606 static const struct finst db_Escb[] = {
607 /*0*/ { "fild", WORD, 0, 0 },
608 /*1*/ { "", NONE, 0, 0 },
609 /*2*/ { "fist", WORD, 0, 0 },
610 /*3*/ { "fistp", WORD, 0, 0 },
611 /*4*/ { "", WORD, op1(X), (char *)db_Escb4 },
612 /*5*/ { "fld", EXTR, 0, 0 },
613 /*6*/ { "", WORD, 0, 0 },
614 /*7*/ { "fstp", EXTR, 0, 0 },
615 };
616
617 static const struct finst db_Escc[] = {
618 /*0*/ { "fadd", DBLR, op2(ST,STI), 0 },
619 /*1*/ { "fmul", DBLR, op2(ST,STI), 0 },
620 /*2*/ { "fcom", DBLR, op2(ST,STI), 0 },
621 /*3*/ { "fcomp", DBLR, op2(ST,STI), 0 },
622 /*4*/ { "fsub", DBLR, op2(ST,STI), "fsubr" },
623 /*5*/ { "fsubr", DBLR, op2(ST,STI), "fsub" },
624 /*6*/ { "fdiv", DBLR, op2(ST,STI), "fdivr" },
625 /*7*/ { "fdivr", DBLR, op2(ST,STI), "fdiv" },
626 };
627
628 static const struct finst db_Escd[] = {
629 /*0*/ { "fld", DBLR, op1(STI), "ffree" },
630 /*1*/ { "", NONE, 0, 0 },
631 /*2*/ { "fst", DBLR, op1(STI), 0 },
632 /*3*/ { "fstp", DBLR, op1(STI), 0 },
633 /*4*/ { "frstor", NONE, op1(STI), "fucom" },
634 /*5*/ { "", NONE, op1(STI), "fucomp" },
635 /*6*/ { "fnsave", NONE, 0, 0 },
636 /*7*/ { "fnstsw", NONE, 0, 0 },
637 };
638
639 static const struct finst db_Esce[] = {
640 /*0*/ { "fiadd", LONG, op2(ST,STI), "faddp" },
641 /*1*/ { "fimul", LONG, op2(ST,STI), "fmulp" },
642 /*2*/ { "ficom", LONG, 0, 0 },
643 /*3*/ { "ficomp", LONG, op1(X), (char *)db_Esce3 },
644 /*4*/ { "fisub", LONG, op2(ST,STI), "fsubrp" },
645 /*5*/ { "fisubr", LONG, op2(ST,STI), "fsubp" },
646 /*6*/ { "fidiv", LONG, op2(ST,STI), "fdivrp" },
647 /*7*/ { "fidivr", LONG, op2(ST,STI), "fdivp" },
648 };
649
650 static const struct finst db_Escf[] = {
651 /*0*/ { "fild", LONG, 0, 0 },
652 /*1*/ { "", LONG, 0, 0 },
653 /*2*/ { "fist", LONG, 0, 0 },
654 /*3*/ { "fistp", LONG, 0, 0 },
655 /*4*/ { "fbld", NONE, op1(XA), (char *)db_Escf4 },
656 /*5*/ { "fld", QUAD, 0, 0 },
657 /*6*/ { "fbstp", NONE, 0, 0 },
658 /*7*/ { "fstp", QUAD, 0, 0 },
659 };
660
661 static const struct finst * const db_Esc_inst[] = {
662 db_Esc8, db_Esc9, db_Esca, db_Escb,
663 db_Escc, db_Escd, db_Esce, db_Escf
664 };
665
666 static const char * const db_Grp1[] = {
667 "add",
668 "or",
669 "adc",
670 "sbb",
671 "and",
672 "sub",
673 "xor",
674 "cmp"
675 };
676
677 static const char * const db_Grp2[] = {
678 "rol",
679 "ror",
680 "rcl",
681 "rcr",
682 "shl",
683 "shr",
684 "shl",
685 "sar"
686 };
687
688 static const struct inst db_Grp3[] = {
689 { "test", TRUE, NONE, op2(I,E), 0 },
690 { "test", TRUE, NONE, op2(I,E), 0 },
691 { "not", TRUE, NONE, op1(E), 0 },
692 { "neg", TRUE, NONE, op1(E), 0 },
693 { "mul", TRUE, NONE, op2(E,A), 0 },
694 { "imul", TRUE, NONE, op2(E,A), 0 },
695 { "div", TRUE, NONE, op2(E,A), 0 },
696 { "idiv", TRUE, NONE, op2(E,A), 0 },
697 };
698
699 static const struct inst db_Grp4[] = {
700 { "inc", TRUE, BYTE, op1(E), 0 },
701 { "dec", TRUE, BYTE, op1(E), 0 },
702 { "", TRUE, NONE, 0, 0 },
703 { "", TRUE, NONE, 0, 0 },
704 { "", TRUE, NONE, 0, 0 },
705 { "", TRUE, NONE, 0, 0 },
706 { "", TRUE, NONE, 0, 0 },
707 { "", TRUE, NONE, 0, 0 }
708 };
709
710 static const struct inst db_Grp5[] = {
711 { "inc", TRUE, LONG, op1(E), 0 },
712 { "dec", TRUE, LONG, op1(E), 0 },
713 { "call", TRUE, NONE, op1(Eind),0 },
714 { "lcall", TRUE, NONE, op1(Eind),0 },
715 { "jmp", TRUE, NONE, op1(Eind),0 },
716 { "ljmp", TRUE, NONE, op1(Eind),0 },
717 { "push", TRUE, LONG, op1(E), 0 },
718 { "", TRUE, NONE, 0, 0 }
719 };
720
721 static const struct inst db_inst_table[256] = {
722 /*00*/ { "add", TRUE, BYTE, op2(R, E), 0 },
723 /*01*/ { "add", TRUE, LONG, op2(R, E), 0 },
724 /*02*/ { "add", TRUE, BYTE, op2(E, R), 0 },
725 /*03*/ { "add", TRUE, LONG, op2(E, R), 0 },
726 /*04*/ { "add", FALSE, BYTE, op2(Is, A), 0 },
727 /*05*/ { "add", FALSE, LONG, op2(Is, A), 0 },
728 /*06*/ { "push", FALSE, NONE, op1(Si), 0 },
729 /*07*/ { "pop", FALSE, NONE, op1(Si), 0 },
730
731 /*08*/ { "or", TRUE, BYTE, op2(R, E), 0 },
732 /*09*/ { "or", TRUE, LONG, op2(R, E), 0 },
733 /*0a*/ { "or", TRUE, BYTE, op2(E, R), 0 },
734 /*0b*/ { "or", TRUE, LONG, op2(E, R), 0 },
735 /*0c*/ { "or", FALSE, BYTE, op2(I, A), 0 },
736 /*0d*/ { "or", FALSE, LONG, op2(I, A), 0 },
737 /*0e*/ { "push", FALSE, NONE, op1(Si), 0 },
738 /*0f*/ { "", FALSE, NONE, 0, 0 },
739
740 /*10*/ { "adc", TRUE, BYTE, op2(R, E), 0 },
741 /*11*/ { "adc", TRUE, LONG, op2(R, E), 0 },
742 /*12*/ { "adc", TRUE, BYTE, op2(E, R), 0 },
743 /*13*/ { "adc", TRUE, LONG, op2(E, R), 0 },
744 /*14*/ { "adc", FALSE, BYTE, op2(Is, A), 0 },
745 /*15*/ { "adc", FALSE, LONG, op2(Is, A), 0 },
746 /*16*/ { "push", FALSE, NONE, op1(Si), 0 },
747 /*17*/ { "pop", FALSE, NONE, op1(Si), 0 },
748
749 /*18*/ { "sbb", TRUE, BYTE, op2(R, E), 0 },
750 /*19*/ { "sbb", TRUE, LONG, op2(R, E), 0 },
751 /*1a*/ { "sbb", TRUE, BYTE, op2(E, R), 0 },
752 /*1b*/ { "sbb", TRUE, LONG, op2(E, R), 0 },
753 /*1c*/ { "sbb", FALSE, BYTE, op2(Is, A), 0 },
754 /*1d*/ { "sbb", FALSE, LONG, op2(Is, A), 0 },
755 /*1e*/ { "push", FALSE, NONE, op1(Si), 0 },
756 /*1f*/ { "pop", FALSE, NONE, op1(Si), 0 },
757
758 /*20*/ { "and", TRUE, BYTE, op2(R, E), 0 },
759 /*21*/ { "and", TRUE, LONG, op2(R, E), 0 },
760 /*22*/ { "and", TRUE, BYTE, op2(E, R), 0 },
761 /*23*/ { "and", TRUE, LONG, op2(E, R), 0 },
762 /*24*/ { "and", FALSE, BYTE, op2(I, A), 0 },
763 /*25*/ { "and", FALSE, LONG, op2(I, A), 0 },
764 /*26*/ { "", FALSE, NONE, 0, 0 },
765 /*27*/ { "aaa", FALSE, NONE, 0, 0 },
766
767 /*28*/ { "sub", TRUE, BYTE, op2(R, E), 0 },
768 /*29*/ { "sub", TRUE, LONG, op2(R, E), 0 },
769 /*2a*/ { "sub", TRUE, BYTE, op2(E, R), 0 },
770 /*2b*/ { "sub", TRUE, LONG, op2(E, R), 0 },
771 /*2c*/ { "sub", FALSE, BYTE, op2(Is, A), 0 },
772 /*2d*/ { "sub", FALSE, LONG, op2(Is, A), 0 },
773 /*2e*/ { "", FALSE, NONE, 0, 0 },
774 /*2f*/ { "das", FALSE, NONE, 0, 0 },
775
776 /*30*/ { "xor", TRUE, BYTE, op2(R, E), 0 },
777 /*31*/ { "xor", TRUE, LONG, op2(R, E), 0 },
778 /*32*/ { "xor", TRUE, BYTE, op2(E, R), 0 },
779 /*33*/ { "xor", TRUE, LONG, op2(E, R), 0 },
780 /*34*/ { "xor", FALSE, BYTE, op2(I, A), 0 },
781 /*35*/ { "xor", FALSE, LONG, op2(I, A), 0 },
782 /*36*/ { "", FALSE, NONE, 0, 0 },
783 /*37*/ { "daa", FALSE, NONE, 0, 0 },
784
785 /*38*/ { "cmp", TRUE, BYTE, op2(R, E), 0 },
786 /*39*/ { "cmp", TRUE, LONG, op2(R, E), 0 },
787 /*3a*/ { "cmp", TRUE, BYTE, op2(E, R), 0 },
788 /*3b*/ { "cmp", TRUE, LONG, op2(E, R), 0 },
789 /*3c*/ { "cmp", FALSE, BYTE, op2(Is, A), 0 },
790 /*3d*/ { "cmp", FALSE, LONG, op2(Is, A), 0 },
791 /*3e*/ { "", FALSE, NONE, 0, 0 },
792 /*3f*/ { "aas", FALSE, NONE, 0, 0 },
793
794 /*40*/ { "inc", FALSE, LONG, op1(Ri), 0 },
795 /*41*/ { "inc", FALSE, LONG, op1(Ri), 0 },
796 /*42*/ { "inc", FALSE, LONG, op1(Ri), 0 },
797 /*43*/ { "inc", FALSE, LONG, op1(Ri), 0 },
798 /*44*/ { "inc", FALSE, LONG, op1(Ri), 0 },
799 /*45*/ { "inc", FALSE, LONG, op1(Ri), 0 },
800 /*46*/ { "inc", FALSE, LONG, op1(Ri), 0 },
801 /*47*/ { "inc", FALSE, LONG, op1(Ri), 0 },
802
803 /*48*/ { "dec", FALSE, LONG, op1(Ri), 0 },
804 /*49*/ { "dec", FALSE, LONG, op1(Ri), 0 },
805 /*4a*/ { "dec", FALSE, LONG, op1(Ri), 0 },
806 /*4b*/ { "dec", FALSE, LONG, op1(Ri), 0 },
807 /*4c*/ { "dec", FALSE, LONG, op1(Ri), 0 },
808 /*4d*/ { "dec", FALSE, LONG, op1(Ri), 0 },
809 /*4e*/ { "dec", FALSE, LONG, op1(Ri), 0 },
810 /*4f*/ { "dec", FALSE, LONG, op1(Ri), 0 },
811
812 /*50*/ { "push", FALSE, LONG, op1(Ri), 0 },
813 /*51*/ { "push", FALSE, LONG, op1(Ri), 0 },
814 /*52*/ { "push", FALSE, LONG, op1(Ri), 0 },
815 /*53*/ { "push", FALSE, LONG, op1(Ri), 0 },
816 /*54*/ { "push", FALSE, LONG, op1(Ri), 0 },
817 /*55*/ { "push", FALSE, LONG, op1(Ri), 0 },
818 /*56*/ { "push", FALSE, LONG, op1(Ri), 0 },
819 /*57*/ { "push", FALSE, LONG, op1(Ri), 0 },
820
821 /*58*/ { "pop", FALSE, LONG, op1(Ri), 0 },
822 /*59*/ { "pop", FALSE, LONG, op1(Ri), 0 },
823 /*5a*/ { "pop", FALSE, LONG, op1(Ri), 0 },
824 /*5b*/ { "pop", FALSE, LONG, op1(Ri), 0 },
825 /*5c*/ { "pop", FALSE, LONG, op1(Ri), 0 },
826 /*5d*/ { "pop", FALSE, LONG, op1(Ri), 0 },
827 /*5e*/ { "pop", FALSE, LONG, op1(Ri), 0 },
828 /*5f*/ { "pop", FALSE, LONG, op1(Ri), 0 },
829
830 /*60*/ { "pusha", FALSE, LONG, 0, 0 },
831 /*61*/ { "popa", FALSE, LONG, 0, 0 },
832 /*62*/ { "bound", TRUE, LONG, op2(E, R), 0 },
833 /*63*/ { "arpl", TRUE, NONE, op2(Ew,Rw), 0 },
834
835 /*64*/ { "", FALSE, NONE, 0, 0 },
836 /*65*/ { "", FALSE, NONE, 0, 0 },
837 /*66*/ { "", FALSE, NONE, 0, 0 },
838 /*67*/ { "", FALSE, NONE, 0, 0 },
839
840 /*68*/ { "push", FALSE, LONG, op1(I), 0 },
841 /*69*/ { "imul", TRUE, LONG, op3(I,E,R), 0 },
842 /*6a*/ { "push", FALSE, LONG, op1(Ib), 0 },
843 /*6b*/ { "imul", TRUE, LONG, op3(Ibs,E,R),0 },
844 /*6c*/ { "ins", FALSE, BYTE, op2(DX, DI), 0 },
845 /*6d*/ { "ins", FALSE, LONG, op2(DX, DI), 0 },
846 /*6e*/ { "outs", FALSE, BYTE, op2(SI, DX), 0 },
847 /*6f*/ { "outs", FALSE, LONG, op2(SI, DX), 0 },
848
849 /*70*/ { "jo", FALSE, NONE, op1(Db), 0 },
850 /*71*/ { "jno", FALSE, NONE, op1(Db), 0 },
851 /*72*/ { "jb", FALSE, NONE, op1(Db), 0 },
852 /*73*/ { "jnb", FALSE, NONE, op1(Db), 0 },
853 /*74*/ { "jz", FALSE, NONE, op1(Db), 0 },
854 /*75*/ { "jnz", FALSE, NONE, op1(Db), 0 },
855 /*76*/ { "jbe", FALSE, NONE, op1(Db), 0 },
856 /*77*/ { "jnbe", FALSE, NONE, op1(Db), 0 },
857
858 /*78*/ { "js", FALSE, NONE, op1(Db), 0 },
859 /*79*/ { "jns", FALSE, NONE, op1(Db), 0 },
860 /*7a*/ { "jp", FALSE, NONE, op1(Db), 0 },
861 /*7b*/ { "jnp", FALSE, NONE, op1(Db), 0 },
862 /*7c*/ { "jl", FALSE, NONE, op1(Db), 0 },
863 /*7d*/ { "jnl", FALSE, NONE, op1(Db), 0 },
864 /*7e*/ { "jle", FALSE, NONE, op1(Db), 0 },
865 /*7f*/ { "jnle", FALSE, NONE, op1(Db), 0 },
866
867 /*80*/ { "", TRUE, BYTE, op2(I, E), (char *)db_Grp1 },
868 /*81*/ { "", TRUE, LONG, op2(I, E), (char *)db_Grp1 },
869 /*82*/ { "", TRUE, BYTE, op2(Is,E), (char *)db_Grp1 },
870 /*83*/ { "", TRUE, LONG, op2(Ibs,E), (char *)db_Grp1 },
871 /*84*/ { "test", TRUE, BYTE, op2(R, E), 0 },
872 /*85*/ { "test", TRUE, LONG, op2(R, E), 0 },
873 /*86*/ { "xchg", TRUE, BYTE, op2(R, E), 0 },
874 /*87*/ { "xchg", TRUE, LONG, op2(R, E), 0 },
875
876 /*88*/ { "mov", TRUE, BYTE, op2(R, E), 0 },
877 /*89*/ { "mov", TRUE, LONG, op2(R, E), 0 },
878 /*8a*/ { "mov", TRUE, BYTE, op2(E, R), 0 },
879 /*8b*/ { "mov", TRUE, LONG, op2(E, R), 0 },
880 /*8c*/ { "mov", TRUE, NONE, op2(S, Ew), 0 },
881 /*8d*/ { "lea", TRUE, LONG, op2(E, R), 0 },
882 /*8e*/ { "mov", TRUE, NONE, op2(Ew, S), 0 },
883 /*8f*/ { "pop", TRUE, LONG, op1(E), 0 },
884
885 /*90*/ { "nop", FALSE, NONE, 0, 0 },
886 /*91*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
887 /*92*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
888 /*93*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
889 /*94*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
890 /*95*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
891 /*96*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
892 /*97*/ { "xchg", FALSE, LONG, op2(A, Ri), 0 },
893
894 /*98*/ { "cbw", FALSE, SDEP, 0, "cwde" }, /* cbw/cwde */
895 /*99*/ { "cwd", FALSE, SDEP, 0, "cdq" }, /* cwd/cdq */
896 /*9a*/ { "lcall", FALSE, NONE, op1(OS), 0 },
897 /*9b*/ { "wait", FALSE, NONE, 0, 0 },
898 /*9c*/ { "pushf", FALSE, LONG, 0, 0 },
899 /*9d*/ { "popf", FALSE, LONG, 0, 0 },
900 /*9e*/ { "sahf", FALSE, NONE, 0, 0 },
901 /*9f*/ { "lahf", FALSE, NONE, 0, 0 },
902
903 /*a0*/ { "mov", FALSE, BYTE, op2(O, A), 0 },
904 /*a1*/ { "mov", FALSE, LONG, op2(O, A), 0 },
905 /*a2*/ { "mov", FALSE, BYTE, op2(A, O), 0 },
906 /*a3*/ { "mov", FALSE, LONG, op2(A, O), 0 },
907 /*a4*/ { "movs", FALSE, BYTE, op2(SI,DI), 0 },
908 /*a5*/ { "movs", FALSE, LONG, op2(SI,DI), 0 },
909 /*a6*/ { "cmps", FALSE, BYTE, op2(SI,DI), 0 },
910 /*a7*/ { "cmps", FALSE, LONG, op2(SI,DI), 0 },
911
912 /*a8*/ { "test", FALSE, BYTE, op2(I, A), 0 },
913 /*a9*/ { "test", FALSE, LONG, op2(I, A), 0 },
914 /*aa*/ { "stos", FALSE, BYTE, op1(DI), 0 },
915 /*ab*/ { "stos", FALSE, LONG, op1(DI), 0 },
916 /*ac*/ { "lods", FALSE, BYTE, op1(SI), 0 },
917 /*ad*/ { "lods", FALSE, LONG, op1(SI), 0 },
918 /*ae*/ { "scas", FALSE, BYTE, op1(DI), 0 },
919 /*af*/ { "scas", FALSE, LONG, op1(DI), 0 },
920
921 /*b0*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
922 /*b1*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
923 /*b2*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
924 /*b3*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
925 /*b4*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
926 /*b5*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
927 /*b6*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
928 /*b7*/ { "mov", FALSE, BYTE, op2(I, Ri), 0 },
929
930 /*b8*/ { "mov", FALSE, LONG, op2(I, Ri), 0 },
931 /*b9*/ { "mov", FALSE, LONG, op2(I, Ri), 0 },
932 /*ba*/ { "mov", FALSE, LONG, op2(I, Ri), 0 },
933 /*bb*/ { "mov", FALSE, LONG, op2(I, Ri), 0 },
934 /*bc*/ { "mov", FALSE, LONG, op2(I, Ri), 0 },
935 /*bd*/ { "mov", FALSE, LONG, op2(I, Ri), 0 },
936 /*be*/ { "mov", FALSE, LONG, op2(I, Ri), 0 },
937 /*bf*/ { "mov", FALSE, LONG, op2(I, Ri), 0 },
938
939 /*c0*/ { "", TRUE, BYTE, op2(Ib, E), (char *)db_Grp2 },
940 /*c1*/ { "", TRUE, LONG, op2(Ib, E), (char *)db_Grp2 },
941 /*c2*/ { "ret", FALSE, NONE, op1(Iw), 0 },
942 /*c3*/ { "ret", FALSE, NONE, 0, 0 },
943 /*c4*/ { "les", TRUE, LONG, op2(E, R), 0 },
944 /*c5*/ { "lds", TRUE, LONG, op2(E, R), 0 },
945 /*c6*/ { "mov", TRUE, BYTE, op2(I, E), 0 },
946 /*c7*/ { "mov", TRUE, LONG, op2(I, E), 0 },
947
948 /*c8*/ { "enter", FALSE, NONE, op2(Iw, Ib), 0 },
949 /*c9*/ { "leave", FALSE, NONE, 0, 0 },
950 /*ca*/ { "lret", FALSE, NONE, op1(Iw), 0 },
951 /*cb*/ { "lret", FALSE, NONE, 0, 0 },
952 /*cc*/ { "int", FALSE, NONE, op1(o3), 0 },
953 /*cd*/ { "int", FALSE, NONE, op1(Ib), 0 },
954 /*ce*/ { "into", FALSE, NONE, 0, 0 },
955 /*cf*/ { "iret", FALSE, NONE, 0, 0 },
956
957 /*d0*/ { "", TRUE, BYTE, op2(o1, E), (char *)db_Grp2 },
958 /*d1*/ { "", TRUE, LONG, op2(o1, E), (char *)db_Grp2 },
959 /*d2*/ { "", TRUE, BYTE, op2(CL, E), (char *)db_Grp2 },
960 /*d3*/ { "", TRUE, LONG, op2(CL, E), (char *)db_Grp2 },
961 /*d4*/ { "aam", TRUE, NONE, 0, 0 },
962 /*d5*/ { "aad", TRUE, NONE, 0, 0 },
963 /*d6*/ { "", FALSE, NONE, 0, 0 },
964 /*d7*/ { "xlat", FALSE, BYTE, op1(BX), 0 },
965
966 /*d8*/ { "", TRUE, NONE, 0, (char *)db_Esc8 },
967 /*d9*/ { "", TRUE, NONE, 0, (char *)db_Esc9 },
968 /*da*/ { "", TRUE, NONE, 0, (char *)db_Esca },
969 /*db*/ { "", TRUE, NONE, 0, (char *)db_Escb },
970 /*dc*/ { "", TRUE, NONE, 0, (char *)db_Escc },
971 /*dd*/ { "", TRUE, NONE, 0, (char *)db_Escd },
972 /*de*/ { "", TRUE, NONE, 0, (char *)db_Esce },
973 /*df*/ { "", TRUE, NONE, 0, (char *)db_Escf },
974
975 /*e0*/ { "loopne",FALSE, NONE, op1(Db), 0 },
976 /*e1*/ { "loope", FALSE, NONE, op1(Db), 0 },
977 /*e2*/ { "loop", FALSE, NONE, op1(Db), 0 },
978 /*e3*/ { "jcxz", FALSE, SDEP, op1(Db), "jecxz" },
979 /*e4*/ { "in", FALSE, BYTE, op2(Ib, A), 0 },
980 /*e5*/ { "in", FALSE, LONG, op2(Ib, A) , 0 },
981 /*e6*/ { "out", FALSE, BYTE, op2(A, Ib), 0 },
982 /*e7*/ { "out", FALSE, LONG, op2(A, Ib) , 0 },
983
984 /*e8*/ { "call", FALSE, NONE, op1(Dl), 0 },
985 /*e9*/ { "jmp", FALSE, NONE, op1(Dl), 0 },
986 /*ea*/ { "ljmp", FALSE, NONE, op1(OS), 0 },
987 /*eb*/ { "jmp", FALSE, NONE, op1(Db), 0 },
988 /*ec*/ { "in", FALSE, BYTE, op2(DX, A), 0 },
989 /*ed*/ { "in", FALSE, LONG, op2(DX, A) , 0 },
990 /*ee*/ { "out", FALSE, BYTE, op2(A, DX), 0 },
991 /*ef*/ { "out", FALSE, LONG, op2(A, DX) , 0 },
992
993 /*f0*/ { "", FALSE, NONE, 0, 0 },
994 /*f1*/ { "", FALSE, NONE, 0, 0 },
995 /*f2*/ { "", FALSE, NONE, 0, 0 },
996 /*f3*/ { "", FALSE, NONE, 0, 0 },
997 /*f4*/ { "hlt", FALSE, NONE, 0, 0 },
998 /*f5*/ { "cmc", FALSE, NONE, 0, 0 },
999 /*f6*/ { "", TRUE, BYTE, 0, (char *)db_Grp3 },
1000 /*f7*/ { "", TRUE, LONG, 0, (char *)db_Grp3 },
1001
1002 /*f8*/ { "clc", FALSE, NONE, 0, 0 },
1003 /*f9*/ { "stc", FALSE, NONE, 0, 0 },
1004 /*fa*/ { "cli", FALSE, NONE, 0, 0 },
1005 /*fb*/ { "sti", FALSE, NONE, 0, 0 },
1006 /*fc*/ { "cld", FALSE, NONE, 0, 0 },
1007 /*fd*/ { "std", FALSE, NONE, 0, 0 },
1008 /*fe*/ { "", TRUE, NONE, 0, (char *)db_Grp4 },
1009 /*ff*/ { "", TRUE, NONE, 0, (char *)db_Grp5 },
1010 };
1011
1012 static const struct inst db_bad_inst =
1013 { "???", FALSE, NONE, 0, 0 }
1014 ;
1015
1016 #define f_mod(byte) ((byte)>>6)
1017 #define f_reg(byte) (((byte)>>3)&0x7)
1018 #define f_rm(byte) ((byte)&0x7)
1019
1020 #define sib_ss(byte) ((byte)>>6)
1021 #define sib_index(byte) (((byte)>>3)&0x7)
1022 #define sib_base(byte) ((byte)&0x7)
1023
1024 struct i_addr {
1025 int is_reg; /* if reg, reg number is in 'disp' */
1026 int disp;
1027 const char * base;
1028 const char * index;
1029 int ss;
1030 };
1031
1032 static const char * const db_index_reg_16[8] = {
1033 "%bx,%si",
1034 "%bx,%di",
1035 "%bp,%si",
1036 "%bp,%di",
1037 "%si",
1038 "%di",
1039 "%bp",
1040 "%bx"
1041 };
1042
1043 static const char * const db_reg[3][8] = {
1044 { "%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh" },
1045 { "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di" },
1046 { "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi" }
1047 };
1048
1049 static const char * const db_seg_reg[8] = {
1050 "%es", "%cs", "%ss", "%ds", "%fs", "%gs", "", ""
1051 };
1052
1053 /*
1054 * lengths for size attributes
1055 */
1056 static const int db_lengths[] = {
1057 1, /* BYTE */
1058 2, /* WORD */
1059 4, /* LONG */
1060 8, /* QUAD */
1061 4, /* SNGL */
1062 8, /* DBLR */
1063 10, /* EXTR */
1064 };
1065
1066 static unsigned int db_get_task_value( const DBG_ADDR *addr,
1067 int size, int is_signed )
1068 {
1069 unsigned int result = 0;
1070 char buffer[4];
1071
1072 if (size != 1 && size != 2 && size != 4) {
1073 DEBUG_Printf("Illegal size specified\n");
1074 } else {
1075 DEBUG_READ_MEM((void*)DEBUG_ToLinear( addr ), buffer, size);
1076
1077 switch(size)
1078 {
1079 case 4:
1080 if (is_signed) result = (unsigned int) *(int *)buffer;
1081 else result = *(unsigned int *)buffer;
1082 break;
1083 case 2:
1084 if (is_signed) result = (unsigned int) *(short int *)buffer;
1085 else result = *(unsigned short int *)buffer;
1086 break;
1087 case 1:
1088 if (is_signed) result = (unsigned int) *(char *)buffer;
1089 else result = *(unsigned char *)buffer;
1090 break;
1091 }
1092 }
1093 return result;
1094 }
1095
1096 #define get_value_inc(result, addr, size, is_signed) \
1097 result = db_get_task_value((addr), (size), (is_signed)); \
1098 if (!db_disasm_16) (addr)->off += (size); \
1099 else (addr)->off = ((addr)->off + (size)) & 0xffff;
1100
1101 /*
1102 * Read address at location and return updated location.
1103 */
1104 void db_read_address( DBG_ADDR *addr, int short_addr, int regmodrm,
1105 struct i_addr *addrp )
1106 {
1107 int mod, rm, sib, index, disp;
1108
1109 mod = f_mod(regmodrm);
1110 rm = f_rm(regmodrm);
1111
1112 if (mod == 3) {
1113 addrp->is_reg = TRUE;
1114 addrp->disp = rm;
1115 return;
1116 }
1117 addrp->is_reg = FALSE;
1118 addrp->index = 0;
1119
1120 if (short_addr) {
1121 addrp->index = 0;
1122 addrp->ss = 0;
1123 switch (mod) {
1124 case 0:
1125 if (rm == 6) {
1126 get_value_inc(disp, addr, 2, TRUE);
1127 addrp->disp = disp;
1128 addrp->base = 0;
1129 }
1130 else {
1131 addrp->disp = 0;
1132 addrp->base = db_index_reg_16[rm];
1133 }
1134 break;
1135 case 1:
1136 get_value_inc(disp, addr, 1, TRUE);
1137 addrp->disp = disp;
1138 addrp->base = db_index_reg_16[rm];
1139 break;
1140 case 2:
1141 get_value_inc(disp, addr, 2, TRUE);
1142 addrp->disp = disp;
1143 addrp->base = db_index_reg_16[rm];
1144 break;
1145 }
1146 }
1147 else {
1148 if (mod != 3 && rm == 4) {
1149 get_value_inc(sib, addr, 1, FALSE);
1150 rm = sib_base(sib);
1151 index = sib_index(sib);
1152 if (index != 4)
1153 addrp->index = db_reg[LONG][index];
1154 addrp->ss = sib_ss(sib);
1155 }
1156
1157 switch (mod) {
1158 case 0:
1159 if (rm == 5) {
1160 get_value_inc(addrp->disp, addr, 4, FALSE);
1161 addrp->base = 0;
1162 }
1163 else {
1164 addrp->disp = 0;
1165 addrp->base = db_reg[LONG][rm];
1166 }
1167 break;
1168
1169 case 1:
1170 get_value_inc(disp, addr, 1, TRUE);
1171 addrp->disp = disp;
1172 addrp->base = db_reg[LONG][rm];
1173 break;
1174
1175 case 2:
1176 get_value_inc(disp, addr, 4, FALSE);
1177 addrp->disp = disp;
1178 addrp->base = db_reg[LONG][rm];
1179 break;
1180 }
1181 }
1182 }
1183
1184 static void db_task_printsym(unsigned int addr, int size)
1185 {
1186 DBG_ADDR address;
1187
1188 address.seg = 0;
1189 address.off = addr;
1190
1191 DEBUG_PrintAddress( &address, db_disasm_16 ? MODE_16 : MODE_32, TRUE );
1192 }
1193
1194 void db_print_address(const char *seg, int size, struct i_addr *addrp, int byref)
1195 {
1196 if (addrp->is_reg) {
1197 DEBUG_Printf("%s", db_reg[size][addrp->disp]);
1198 return;
1199 }
1200
1201 if (seg) {
1202 DEBUG_Printf("%s:", seg);
1203 }
1204
1205 if (addrp->base != 0 || addrp->index != 0) {
1206 DEBUG_Printf("0x%x(", addrp->disp);
1207 if (addrp->base)
1208 DEBUG_Printf("%s", addrp->base);
1209 if (addrp->index)
1210 DEBUG_Printf(",%s,%d", addrp->index, 1<<addrp->ss);
1211 DEBUG_Printf(")");
1212 }
1213 else {
1214
1215 /* try to get destination of indirect call
1216 does not work for segmented adresses */
1217 if (!seg && byref) {
1218 void* a1;
1219 void* a2;
1220
1221 DEBUG_Printf("0x%x -> ", addrp->disp);
1222 if (!DEBUG_READ_MEM((void*)addrp->disp, &a1, sizeof(a1))) {
1223 DEBUG_Printf("(invalid source)");
1224 } else if (!DEBUG_READ_MEM(a1, &a2, sizeof(a2))) {
1225 DEBUG_Printf("(invalid destination)");
1226 } else {
1227 db_task_printsym((unsigned long)a1, 0);
1228 }
1229 }
1230 else
1231 db_task_printsym(addrp->disp, size);
1232 }
1233 }
1234
1235 /*
1236 * Disassemble floating-point ("escape") instruction
1237 * and return updated location.
1238 */
1239 void db_disasm_esc( DBG_ADDR *addr, int inst, int short_addr,
1240 int size, const char *seg )
1241 {
1242 int regmodrm;
1243 const struct finst *fp;
1244 int mod;
1245 struct i_addr address;
1246 const char * name;
1247
1248 get_value_inc(regmodrm, addr, 1, FALSE);
1249 if( !db_display )
1250 {
1251 return;
1252 }
1253
1254 fp = &db_Esc_inst[inst - 0xd8][f_reg(regmodrm)];
1255 mod = f_mod(regmodrm);
1256 if (mod != 3) {
1257 const char* p;
1258 /*
1259 * Normal address modes.
1260 */
1261 db_read_address( addr, short_addr, regmodrm, &address);
1262 DEBUG_Printf(fp->f_name);
1263 switch(fp->f_size) {
1264 case SNGL: p = "s"; break;
1265 case DBLR: p = "l"; break;
1266 case EXTR: p = "t"; break;
1267 case WORD: p = "s"; break;
1268 case LONG: p = "l"; break;
1269 case QUAD: p = "q"; break;
1270 default: p = ""; break;
1271 }
1272 DEBUG_Printf("%s\t", p);
1273 db_print_address(seg, BYTE, &address, 0);
1274 }
1275 else {
1276 /*
1277 * 'reg-reg' - special formats
1278 */
1279 switch (fp->f_rrmode) {
1280 case op2(ST,STI):
1281 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1282 DEBUG_Printf("%s\t%%st,%%st(%d)",name,f_rm(regmodrm));
1283 break;
1284 case op2(STI,ST):
1285 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1286 DEBUG_Printf("%s\t%%st(%d),%%st",name, f_rm(regmodrm));
1287 break;
1288 case op1(STI):
1289 name = (fp->f_rrname) ? fp->f_rrname : fp->f_name;
1290 DEBUG_Printf("%s\t%%st(%d)",name, f_rm(regmodrm));
1291 break;
1292 case op1(X):
1293 DEBUG_Printf("%s", ((char **)fp->f_rrname)[f_rm(regmodrm)]);
1294 break;
1295 case op1(XA):
1296 DEBUG_Printf("%s\t%%ax", ((char **)fp->f_rrname)[f_rm(regmodrm)]);
1297 break;
1298 default:
1299 DEBUG_Printf("<bad instruction>");
1300 break;
1301 }
1302 }
1303 }
1304
1305
1306 /***********************************************************************
1307 * DEBUG_Disasm
1308 *
1309 * Disassemble instruction at 'addr'. addr is changed to point to the
1310 * start of the next instruction.
1311 */
1312 void DEBUG_Disasm( DBG_ADDR *addr, int display )
1313 {
1314 int inst;
1315 int size;
1316 int short_addr;
1317 const char *seg;
1318 const struct inst *ip;
1319 const char *i_name;
1320 int i_size;
1321 int i_mode;
1322 int regmodrm = 0;
1323 BOOL first;
1324 int displ;
1325 int prefix;
1326 int imm;
1327 int len;
1328 struct i_addr address;
1329
1330 /*
1331 * Set this so we get can supress the printout if we need to.
1332 */
1333 db_display = display;
1334 switch (DEBUG_GetSelectorType(addr->seg))
1335 {
1336 case MODE_VM86:
1337 case MODE_16: db_disasm_16 = 1; break;
1338 case MODE_32: db_disasm_16 = 0; break;
1339 default: DEBUG_Printf("Bad selector %lx\n", addr->seg); return;
1340 }
1341
1342 get_value_inc( inst, addr, 1, FALSE );
1343
1344 if (db_disasm_16) {
1345 short_addr = TRUE;
1346 size = WORD;
1347 }
1348 else {
1349 short_addr = FALSE;
1350 size = LONG;
1351 }
1352 seg = 0;
1353
1354 /*
1355 * Get prefixes
1356 */
1357 prefix = TRUE;
1358 do {
1359 switch (inst) {
1360 case 0x66: /* data16 */
1361 if (size == LONG)
1362 size = WORD;
1363 else
1364 size = LONG;
1365 break;
1366 case 0x67:
1367 short_addr = !short_addr;
1368 break;
1369 case 0x26:
1370 seg = "%es";
1371 break;
1372 case 0x36:
1373 seg = "%ss";
1374 break;
1375 case 0x2e:
1376 seg = "%cs";
1377 break;
1378 case 0x3e:
1379 seg = "%ds";
1380 break;
1381 case 0x64:
1382 seg = "%fs";
1383 break;
1384 case 0x65:
1385 seg = "%gs";
1386 break;
1387 case 0xf0:
1388 if( db_display )
1389 DEBUG_Printf("lock ");
1390 break;
1391 case 0xf2:
1392 if( db_display )
1393 DEBUG_Printf("repne ");
1394 break;
1395 case 0xf3:
1396 if( db_display )
1397 DEBUG_Printf("repe "); /* XXX repe VS rep */
1398 break;
1399 default:
1400 prefix = FALSE;
1401 break;
1402 }
1403 if (prefix) {
1404 get_value_inc(inst, addr, 1, FALSE);
1405 }
1406 } while (prefix);
1407
1408 if (inst >= 0xd8 && inst <= 0xdf)
1409 {
1410 db_disasm_esc( addr, inst, short_addr, size, seg);
1411 return;
1412 }
1413
1414 if (inst == 0x0f) {
1415 get_value_inc(inst, addr, 1, FALSE);
1416 ip = db_inst_0f[inst>>4];
1417 if (ip == 0) {
1418 ip = &db_bad_inst;
1419 }
1420 else {
1421 ip = &ip[inst&0xf];
1422 }
1423 }
1424 else
1425 ip = &db_inst_table[inst];
1426
1427 if (ip->i_has_modrm) {
1428 get_value_inc(regmodrm, addr, 1, FALSE);
1429 db_read_address( addr, short_addr, regmodrm, &address);
1430 }
1431
1432 i_name = ip->i_name;
1433 i_size = ip->i_size;
1434 i_mode = ip->i_mode;
1435
1436 if (ip->i_extra == (char *)db_Grp1 ||
1437 ip->i_extra == (char *)db_Grp2 ||
1438 ip->i_extra == (char *)db_Grp6 ||
1439 ip->i_extra == (char *)db_Grp7 ||
1440 ip->i_extra == (char *)db_Grp8 ||
1441 ip->i_extra == (char *)db_Grp10 ||
1442 ip->i_extra == (char *)db_Grp11 ||
1443 ip->i_extra == (char *)db_Grp12) {
1444 i_name = ((char **)ip->i_extra)[f_reg(regmodrm)];
1445 }
1446 else if (ip->i_extra == (char *)db_Grp3) {
1447 ip = (struct inst *)ip->i_extra;
1448 ip = &ip[f_reg(regmodrm)];
1449 i_name = ip->i_name;
1450 i_mode = ip->i_mode;
1451 }
1452 else if (ip->i_extra == (char *)db_Grp4 ||
1453 ip->i_extra == (char *)db_Grp5) {
1454 ip = (struct inst *)ip->i_extra;
1455 ip = &ip[f_reg(regmodrm)];
1456 i_name = ip->i_name;
1457 i_mode = ip->i_mode;
1458 i_size = ip->i_size;
1459 }
1460
1461 if (i_size == SDEP) {
1462 if( db_display )
1463 {
1464 if (size == WORD)
1465 DEBUG_Printf(i_name);
1466 else
1467 DEBUG_Printf(ip->i_extra);
1468 }
1469 }
1470 else {
1471 if( db_display )
1472 {
1473 DEBUG_Printf(i_name);
1474 }
1475 if (i_size != NONE) {
1476 if (i_size == BYTE) {
1477 if( db_display )
1478 {
1479 DEBUG_Printf("b");
1480 }
1481 size = BYTE;
1482 }
1483 else if (i_size == WORD) {
1484 if( db_display )
1485 {
1486 DEBUG_Printf("w");
1487 }
1488 size = WORD;
1489 }
1490 else if (size == WORD)
1491 {
1492 if( db_display )
1493 {
1494 DEBUG_Printf("w");
1495 }
1496 }
1497 else
1498 {
1499 if( db_display )
1500 {
1501 DEBUG_Printf("l");
1502 }
1503 }
1504 }
1505 }
1506 if( db_display )
1507 {
1508 DEBUG_Printf("\t");
1509 }
1510 for (first = TRUE;
1511 i_mode != 0;
1512 i_mode >>= 8, first = FALSE)
1513 {
1514 if (!first && db_display)
1515 DEBUG_Printf(",");
1516
1517 switch (i_mode & 0xFF) {
1518
1519 case E:
1520 if( db_display )
1521 {
1522 db_print_address(seg, size, &address, 0);
1523 }
1524 break;
1525
1526 case Eind:
1527 if( db_display )
1528 {
1529 DEBUG_Printf("*");
1530 db_print_address(seg, size, &address, 1);
1531 }
1532 break;
1533
1534 case Ew:
1535 if( db_display )
1536 {
1537 db_print_address(seg, WORD, &address, 0);
1538 }
1539 break;
1540
1541 case Eb:
1542 if( db_display )
1543 {
1544 db_print_address(seg, BYTE, &address, 0);
1545 }
1546 break;
1547
1548 case R:
1549 if( db_display )
1550 {
1551 DEBUG_Printf("%s", db_reg[size][f_reg(regmodrm)]);
1552 }
1553 break;
1554 case MX:
1555 if( db_display )
1556 {
1557 DEBUG_Printf("%%mm%d", f_reg(regmodrm));
1558 }
1559 break;
1560 case EMX:
1561 if( db_display )
1562 {
1563 DEBUG_Printf("%%mm%d", f_rm(regmodrm));
1564 }
1565 break;
1566 case XMM:
1567 if( db_display )
1568 {
1569 DEBUG_Printf("%%xmm%d", f_reg(regmodrm));
1570 }
1571 break;
1572 case EXMM:
1573 if( db_display )
1574 {
1575 DEBUG_Printf("%%xmm%d", f_rm(regmodrm));
1576 }
1577 break;
1578
1579
1580 case Rw:
1581 if( db_display )
1582 {
1583 DEBUG_Printf("%s", db_reg[WORD][f_reg(regmodrm)]);
1584 }
1585 break;
1586
1587 case Ri:
1588 if( db_display )
1589 {
1590 DEBUG_Printf("%s", db_reg[size][f_rm(inst)]);
1591 }
1592 break;
1593
1594 case S:
1595 if( db_display )
1596 {
1597 DEBUG_Printf("%s", db_seg_reg[f_reg(regmodrm)]);
1598 }
1599 break;
1600
1601 case Si:
1602 if( db_display )
1603 {
1604 DEBUG_Printf("%s", db_seg_reg[f_reg(inst)]);
1605 }
1606 break;
1607
1608 case A:
1609 if( db_display )
1610 {
1611 DEBUG_Printf("%s", db_reg[size][0]); /* acc */
1612 }
1613 break;
1614
1615 case BX:
1616 if( db_display )
1617 {
1618 if (seg)
1619 DEBUG_Printf("%s:", seg);
1620 DEBUG_Printf("(%s)", short_addr ? "%bx" : "%ebx");
1621 }
1622 break;
1623
1624 case CL:
1625 if( db_display )
1626 {
1627 DEBUG_Printf("%%cl");
1628 }
1629 break;
1630
1631 case DX:
1632 if( db_display )
1633 {
1634 DEBUG_Printf("%%dx");
1635 }
1636 break;
1637
1638 case SI:
1639 if( db_display )
1640 {
1641 if (seg)
1642 DEBUG_Printf("%s:", seg);
1643 DEBUG_Printf("(%s)", short_addr ? "%si" : "%esi");
1644 }
1645 break;
1646
1647 case DI:
1648 if( db_display )
1649 {
1650 DEBUG_Printf("%%es:(%s)", short_addr ? "%di" : "%edi");
1651 }
1652 break;
1653
1654 case CR:
1655 if( db_display )
1656 {
1657 DEBUG_Printf("%%cr%d", f_reg(regmodrm));
1658 }
1659 break;
1660
1661 case DR:
1662 if( db_display )
1663 {
1664 DEBUG_Printf("%%dr%d", f_reg(regmodrm));
1665 }
1666 break;
1667
1668 case TR:
1669 if( db_display )
1670 {
1671 DEBUG_Printf("%%tr%d", f_reg(regmodrm));
1672 }
1673 break;
1674
1675 case I:
1676 len = db_lengths[size];
1677 get_value_inc(imm, addr, len, FALSE);/* unsigned */
1678 if( db_display )
1679 {
1680 DEBUG_Printf("$0x%x", imm);
1681 }
1682 break;
1683
1684 case Is:
1685 len = db_lengths[size];
1686 get_value_inc(imm, addr, len, TRUE); /* signed */
1687 if( db_display )
1688 {
1689 DEBUG_Printf("$%d", imm);
1690 }
1691 break;
1692
1693 case Ib:
1694 get_value_inc(imm, addr, 1, FALSE); /* unsigned */
1695 if( db_display )
1696 {
1697 DEBUG_Printf("$0x%x", imm);
1698 }
1699 break;
1700
1701 case Ibs:
1702 get_value_inc(imm, addr, 1, TRUE); /* signed */
1703 if( db_display )
1704 {
1705 DEBUG_Printf("$%d", imm);
1706 }
1707 break;
1708
1709 case Iw:
1710 get_value_inc(imm, addr, 2, FALSE); /* unsigned */
1711 if( db_display )
1712 {
1713 DEBUG_Printf("$0x%x", imm);
1714 }
1715 break;
1716
1717 case Il:
1718 get_value_inc(imm, addr, 4, FALSE);
1719 if( db_display )
1720 {
1721 DEBUG_Printf("$0x%x", imm);
1722 }
1723 break;
1724
1725 case O:
1726 if (short_addr) {
1727 get_value_inc(displ, addr, 2, TRUE);
1728 }
1729 else {
1730 get_value_inc(displ, addr, 4, TRUE);
1731 }
1732 if( !db_display )
1733 {
1734 break;
1735 }
1736
1737 if (seg)
1738 DEBUG_Printf("%s:0x%x",seg, displ);
1739 else
1740 db_task_printsym(displ, short_addr ? WORD : LONG);
1741 break;
1742
1743 case Db:
1744 get_value_inc(displ, addr, 1, TRUE);
1745 if( !db_display )
1746 {
1747 break;
1748 }
1749
1750 if (size == WORD) {
1751 /* offset only affects low 16 bits */
1752 displ = (addr->off & 0xffff0000)
1753 | ((addr->off + displ) & 0xffff);
1754 }
1755 else displ += addr->off;
1756 db_task_printsym(displ, size);
1757 break;
1758
1759 case Dl:
1760 if (size == WORD) {
1761 get_value_inc(displ, addr, 2, TRUE);
1762 /* offset only affects low 16 bits */
1763 displ = (addr->off & 0xffff0000)
1764 | ((addr->off + displ) & 0xffff);
1765 }
1766 else {
1767 get_value_inc(displ, addr, 4, TRUE);
1768 displ += addr->off;
1769 }
1770 if( !db_display )
1771 {
1772 break;
1773 }
1774 db_task_printsym( displ, size );
1775 break;
1776
1777 case o1:
1778 if( db_display )
1779 {
1780 DEBUG_Printf("$1");
1781 }
1782 break;
1783
1784 case o3:
1785 if( db_display )
1786 {
1787 DEBUG_Printf("$3");
1788 }
1789 break;
1790
1791 case OS:
1792 {
1793 DBG_ADDR address;
1794 get_value_inc( address.off, addr, /* offset */
1795 short_addr ? 2 : 4, FALSE );
1796 get_value_inc( address.seg, addr, /* segment */
1797 2, FALSE );
1798 if( db_display )
1799 {
1800 DEBUG_PrintAddress( &address, short_addr ? MODE_16 : MODE_32, TRUE );
1801 }
1802
1803 }
1804 break;
1805 }
1806 }
1807 }
1808
1809 #else /* __i386__ */
1810
1811 void DEBUG_Disasm( DBG_ADDR *addr, int display )
1812 {
1813 }
1814
1815 #endif /* __i386__ */
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