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252b5132 RH |
1 | /* Print i386 instructions for GDB, the GNU debugger. |
2 | Copyright (C) 1988, 89, 91, 93, 94, 95, 96, 97, 98, 1999 | |
3 | Free Software Foundation, Inc. | |
4 | ||
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program; if not, write to the Free Software | |
19 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
20 | ||
21 | /* | |
22 | * 80386 instruction printer by Pace Willisson (pace@prep.ai.mit.edu) | |
23 | * July 1988 | |
24 | * modified by John Hassey (hassey@dg-rtp.dg.com) | |
25 | */ | |
26 | ||
27 | /* | |
28 | * The main tables describing the instructions is essentially a copy | |
29 | * of the "Opcode Map" chapter (Appendix A) of the Intel 80386 | |
30 | * Programmers Manual. Usually, there is a capital letter, followed | |
31 | * by a small letter. The capital letter tell the addressing mode, | |
32 | * and the small letter tells about the operand size. Refer to | |
33 | * the Intel manual for details. | |
34 | */ | |
35 | ||
36 | #include "dis-asm.h" | |
37 | #include "sysdep.h" | |
38 | #include "opintl.h" | |
39 | ||
40 | #define MAXLEN 20 | |
41 | ||
42 | #include <setjmp.h> | |
43 | ||
44 | #ifndef UNIXWARE_COMPAT | |
45 | /* Set non-zero for broken, compatible instructions. Set to zero for | |
46 | non-broken opcodes. */ | |
47 | #define UNIXWARE_COMPAT 1 | |
48 | #endif | |
49 | ||
50 | ||
51 | static int fetch_data PARAMS ((struct disassemble_info *, bfd_byte *)); | |
52 | ||
53 | struct dis_private | |
54 | { | |
55 | /* Points to first byte not fetched. */ | |
56 | bfd_byte *max_fetched; | |
57 | bfd_byte the_buffer[MAXLEN]; | |
58 | bfd_vma insn_start; | |
59 | jmp_buf bailout; | |
60 | }; | |
61 | ||
62 | /* Make sure that bytes from INFO->PRIVATE_DATA->BUFFER (inclusive) | |
63 | to ADDR (exclusive) are valid. Returns 1 for success, longjmps | |
64 | on error. */ | |
65 | #define FETCH_DATA(info, addr) \ | |
66 | ((addr) <= ((struct dis_private *)(info->private_data))->max_fetched \ | |
67 | ? 1 : fetch_data ((info), (addr))) | |
68 | ||
69 | static int | |
70 | fetch_data (info, addr) | |
71 | struct disassemble_info *info; | |
72 | bfd_byte *addr; | |
73 | { | |
74 | int status; | |
75 | struct dis_private *priv = (struct dis_private *)info->private_data; | |
76 | bfd_vma start = priv->insn_start + (priv->max_fetched - priv->the_buffer); | |
77 | ||
78 | status = (*info->read_memory_func) (start, | |
79 | priv->max_fetched, | |
80 | addr - priv->max_fetched, | |
81 | info); | |
82 | if (status != 0) | |
83 | { | |
84 | (*info->memory_error_func) (status, start, info); | |
85 | longjmp (priv->bailout, 1); | |
86 | } | |
87 | else | |
88 | priv->max_fetched = addr; | |
89 | return 1; | |
90 | } | |
91 | ||
92 | #define Eb OP_E, b_mode | |
93 | #define indirEb OP_indirE, b_mode | |
94 | #define Gb OP_G, b_mode | |
95 | #define Ev OP_E, v_mode | |
96 | #define indirEv OP_indirE, v_mode | |
97 | #define Ew OP_E, w_mode | |
98 | #define Ma OP_E, v_mode | |
99 | #define M OP_E, 0 | |
100 | #define Mp OP_E, 0 /* ? */ | |
101 | #define Gv OP_G, v_mode | |
102 | #define Gw OP_G, w_mode | |
103 | #define Rw OP_rm, w_mode | |
104 | #define Rd OP_rm, d_mode | |
105 | #define Ib OP_I, b_mode | |
106 | #define sIb OP_sI, b_mode /* sign extened byte */ | |
107 | #define Iv OP_I, v_mode | |
108 | #define Iw OP_I, w_mode | |
109 | #define Jb OP_J, b_mode | |
110 | #define Jv OP_J, v_mode | |
111 | #if 0 | |
112 | #define ONE OP_ONE, 0 | |
113 | #endif | |
114 | #define Cd OP_C, d_mode | |
115 | #define Dd OP_D, d_mode | |
116 | #define Td OP_T, d_mode | |
117 | ||
118 | #define eAX OP_REG, eAX_reg | |
119 | #define eBX OP_REG, eBX_reg | |
120 | #define eCX OP_REG, eCX_reg | |
121 | #define eDX OP_REG, eDX_reg | |
122 | #define eSP OP_REG, eSP_reg | |
123 | #define eBP OP_REG, eBP_reg | |
124 | #define eSI OP_REG, eSI_reg | |
125 | #define eDI OP_REG, eDI_reg | |
126 | #define AL OP_REG, al_reg | |
127 | #define CL OP_REG, cl_reg | |
128 | #define DL OP_REG, dl_reg | |
129 | #define BL OP_REG, bl_reg | |
130 | #define AH OP_REG, ah_reg | |
131 | #define CH OP_REG, ch_reg | |
132 | #define DH OP_REG, dh_reg | |
133 | #define BH OP_REG, bh_reg | |
134 | #define AX OP_REG, ax_reg | |
135 | #define DX OP_REG, dx_reg | |
136 | #define indirDX OP_REG, indir_dx_reg | |
137 | ||
138 | #define Sw OP_SEG, w_mode | |
139 | #define Ap OP_DIR, lptr | |
140 | #define Av OP_DIR, v_mode | |
141 | #define Ob OP_OFF, b_mode | |
142 | #define Ov OP_OFF, v_mode | |
143 | #define Xb OP_DSreg, eSI_reg | |
144 | #define Xv OP_DSreg, eSI_reg | |
145 | #define Yb OP_ESreg, eDI_reg | |
146 | #define Yv OP_ESreg, eDI_reg | |
147 | #define DSBX OP_DSreg, eBX_reg | |
148 | ||
149 | #define es OP_REG, es_reg | |
150 | #define ss OP_REG, ss_reg | |
151 | #define cs OP_REG, cs_reg | |
152 | #define ds OP_REG, ds_reg | |
153 | #define fs OP_REG, fs_reg | |
154 | #define gs OP_REG, gs_reg | |
155 | ||
156 | #define MX OP_MMX, 0 | |
157 | #define EM OP_EM, v_mode | |
158 | #define MS OP_MS, b_mode | |
159 | #define OPSUF OP_3DNowSuffix, 0 | |
160 | ||
161 | /* bits in sizeflag */ | |
162 | #if 0 /* leave undefined until someone adds the extra flag to objdump */ | |
163 | #define SUFFIX_ALWAYS 4 | |
164 | #endif | |
165 | #define AFLAG 2 | |
166 | #define DFLAG 1 | |
167 | ||
168 | typedef void (*op_rtn) PARAMS ((int bytemode, int sizeflag )); | |
169 | ||
170 | static void OP_E PARAMS ((int, int)); | |
171 | static void OP_G PARAMS ((int, int)); | |
172 | static void OP_I PARAMS ((int, int)); | |
173 | static void OP_indirE PARAMS ((int, int)); | |
174 | static void OP_sI PARAMS ((int, int)); | |
175 | static void OP_REG PARAMS ((int, int)); | |
176 | static void OP_J PARAMS ((int, int)); | |
177 | static void OP_DIR PARAMS ((int, int)); | |
178 | static void OP_OFF PARAMS ((int, int)); | |
179 | static void OP_ESreg PARAMS ((int, int)); | |
180 | static void OP_DSreg PARAMS ((int, int)); | |
181 | static void OP_SEG PARAMS ((int, int)); | |
182 | static void OP_C PARAMS ((int, int)); | |
183 | static void OP_D PARAMS ((int, int)); | |
184 | static void OP_T PARAMS ((int, int)); | |
185 | static void OP_rm PARAMS ((int, int)); | |
186 | static void OP_ST PARAMS ((int, int)); | |
187 | static void OP_STi PARAMS ((int, int)); | |
188 | #if 0 | |
189 | static void OP_ONE PARAMS ((int, int)); | |
190 | #endif | |
191 | static void OP_MMX PARAMS ((int, int)); | |
192 | static void OP_EM PARAMS ((int, int)); | |
193 | static void OP_MS PARAMS ((int, int)); | |
194 | static void OP_3DNowSuffix PARAMS ((int, int)); | |
195 | ||
196 | static void append_seg PARAMS ((void)); | |
197 | static void set_op PARAMS ((unsigned int op)); | |
198 | static void putop PARAMS ((char *template, int sizeflag)); | |
199 | static void dofloat PARAMS ((int sizeflag)); | |
200 | static int get16 PARAMS ((void)); | |
201 | static int get32 PARAMS ((void)); | |
202 | static void ckprefix PARAMS ((void)); | |
203 | static void ptr_reg PARAMS ((int, int)); | |
204 | ||
205 | #define b_mode 1 | |
206 | #define v_mode 2 | |
207 | #define w_mode 3 | |
208 | #define d_mode 4 | |
209 | #define x_mode 5 | |
210 | ||
211 | #define es_reg 100 | |
212 | #define cs_reg 101 | |
213 | #define ss_reg 102 | |
214 | #define ds_reg 103 | |
215 | #define fs_reg 104 | |
216 | #define gs_reg 105 | |
217 | #define eAX_reg 107 | |
218 | #define eCX_reg 108 | |
219 | #define eDX_reg 109 | |
220 | #define eBX_reg 110 | |
221 | #define eSP_reg 111 | |
222 | #define eBP_reg 112 | |
223 | #define eSI_reg 113 | |
224 | #define eDI_reg 114 | |
225 | ||
226 | #define lptr 115 | |
227 | ||
228 | #define al_reg 116 | |
229 | #define cl_reg 117 | |
230 | #define dl_reg 118 | |
231 | #define bl_reg 119 | |
232 | #define ah_reg 120 | |
233 | #define ch_reg 121 | |
234 | #define dh_reg 122 | |
235 | #define bh_reg 123 | |
236 | ||
237 | #define ax_reg 124 | |
238 | #define cx_reg 125 | |
239 | #define dx_reg 126 | |
240 | #define bx_reg 127 | |
241 | #define sp_reg 128 | |
242 | #define bp_reg 129 | |
243 | #define si_reg 130 | |
244 | #define di_reg 131 | |
245 | ||
246 | #define indir_dx_reg 150 | |
247 | ||
248 | #define GRP1b NULL, NULL, 0 | |
249 | #define GRP1S NULL, NULL, 1 | |
250 | #define GRP1Ss NULL, NULL, 2 | |
251 | #define GRP2b NULL, NULL, 3 | |
252 | #define GRP2S NULL, NULL, 4 | |
253 | #define GRP2b_one NULL, NULL, 5 | |
254 | #define GRP2S_one NULL, NULL, 6 | |
255 | #define GRP2b_cl NULL, NULL, 7 | |
256 | #define GRP2S_cl NULL, NULL, 8 | |
257 | #define GRP3b NULL, NULL, 9 | |
258 | #define GRP3S NULL, NULL, 10 | |
259 | #define GRP4 NULL, NULL, 11 | |
260 | #define GRP5 NULL, NULL, 12 | |
261 | #define GRP6 NULL, NULL, 13 | |
262 | #define GRP7 NULL, NULL, 14 | |
263 | #define GRP8 NULL, NULL, 15 | |
264 | #define GRP9 NULL, NULL, 16 | |
265 | #define GRP10 NULL, NULL, 17 | |
266 | #define GRP11 NULL, NULL, 18 | |
267 | #define GRP12 NULL, NULL, 19 | |
268 | #define GRP13 NULL, NULL, 20 | |
269 | #define GRP14 NULL, NULL, 21 | |
270 | ||
271 | #define FLOATCODE 50 | |
272 | #define FLOAT NULL, NULL, FLOATCODE | |
273 | ||
274 | struct dis386 { | |
275 | char *name; | |
276 | op_rtn op1; | |
277 | int bytemode1; | |
278 | op_rtn op2; | |
279 | int bytemode2; | |
280 | op_rtn op3; | |
281 | int bytemode3; | |
282 | }; | |
283 | ||
284 | /* Upper case letters in the instruction names here are macros. | |
285 | 'A' => print 'b' if no register operands or suffix_always is true | |
286 | 'B' => print 'b' if suffix_always is true | |
287 | 'E' => print 'e' if 32-bit form of jcxz | |
288 | 'L' => print 'l' if suffix_always is true | |
289 | 'N' => print 'n' if instruction has no wait "prefix" | |
290 | 'P' => print 'w' or 'l' if instruction has an operand size prefix, | |
291 | or suffix_always is true | |
292 | 'Q' => print 'w' or 'l' if no register operands or suffix_always is true | |
293 | 'R' => print 'w' or 'l' | |
294 | 'S' => print 'w' or 'l' if suffix_always is true | |
295 | 'W' => print 'b' or 'w' | |
296 | */ | |
297 | ||
298 | static struct dis386 dis386_att[] = { | |
299 | /* 00 */ | |
300 | { "addB", Eb, Gb }, | |
301 | { "addS", Ev, Gv }, | |
302 | { "addB", Gb, Eb }, | |
303 | { "addS", Gv, Ev }, | |
304 | { "addB", AL, Ib }, | |
305 | { "addS", eAX, Iv }, | |
306 | { "pushP", es }, | |
307 | { "popP", es }, | |
308 | /* 08 */ | |
309 | { "orB", Eb, Gb }, | |
310 | { "orS", Ev, Gv }, | |
311 | { "orB", Gb, Eb }, | |
312 | { "orS", Gv, Ev }, | |
313 | { "orB", AL, Ib }, | |
314 | { "orS", eAX, Iv }, | |
315 | { "pushP", cs }, | |
316 | { "(bad)" }, /* 0x0f extended opcode escape */ | |
317 | /* 10 */ | |
318 | { "adcB", Eb, Gb }, | |
319 | { "adcS", Ev, Gv }, | |
320 | { "adcB", Gb, Eb }, | |
321 | { "adcS", Gv, Ev }, | |
322 | { "adcB", AL, Ib }, | |
323 | { "adcS", eAX, Iv }, | |
324 | { "pushP", ss }, | |
325 | { "popP", ss }, | |
326 | /* 18 */ | |
327 | { "sbbB", Eb, Gb }, | |
328 | { "sbbS", Ev, Gv }, | |
329 | { "sbbB", Gb, Eb }, | |
330 | { "sbbS", Gv, Ev }, | |
331 | { "sbbB", AL, Ib }, | |
332 | { "sbbS", eAX, Iv }, | |
333 | { "pushP", ds }, | |
334 | { "popP", ds }, | |
335 | /* 20 */ | |
336 | { "andB", Eb, Gb }, | |
337 | { "andS", Ev, Gv }, | |
338 | { "andB", Gb, Eb }, | |
339 | { "andS", Gv, Ev }, | |
340 | { "andB", AL, Ib }, | |
341 | { "andS", eAX, Iv }, | |
342 | { "(bad)" }, /* SEG ES prefix */ | |
343 | { "daa" }, | |
344 | /* 28 */ | |
345 | { "subB", Eb, Gb }, | |
346 | { "subS", Ev, Gv }, | |
347 | { "subB", Gb, Eb }, | |
348 | { "subS", Gv, Ev }, | |
349 | { "subB", AL, Ib }, | |
350 | { "subS", eAX, Iv }, | |
351 | { "(bad)" }, /* SEG CS prefix */ | |
352 | { "das" }, | |
353 | /* 30 */ | |
354 | { "xorB", Eb, Gb }, | |
355 | { "xorS", Ev, Gv }, | |
356 | { "xorB", Gb, Eb }, | |
357 | { "xorS", Gv, Ev }, | |
358 | { "xorB", AL, Ib }, | |
359 | { "xorS", eAX, Iv }, | |
360 | { "(bad)" }, /* SEG SS prefix */ | |
361 | { "aaa" }, | |
362 | /* 38 */ | |
363 | { "cmpB", Eb, Gb }, | |
364 | { "cmpS", Ev, Gv }, | |
365 | { "cmpB", Gb, Eb }, | |
366 | { "cmpS", Gv, Ev }, | |
367 | { "cmpB", AL, Ib }, | |
368 | { "cmpS", eAX, Iv }, | |
369 | { "(bad)" }, /* SEG DS prefix */ | |
370 | { "aas" }, | |
371 | /* 40 */ | |
372 | { "incS", eAX }, | |
373 | { "incS", eCX }, | |
374 | { "incS", eDX }, | |
375 | { "incS", eBX }, | |
376 | { "incS", eSP }, | |
377 | { "incS", eBP }, | |
378 | { "incS", eSI }, | |
379 | { "incS", eDI }, | |
380 | /* 48 */ | |
381 | { "decS", eAX }, | |
382 | { "decS", eCX }, | |
383 | { "decS", eDX }, | |
384 | { "decS", eBX }, | |
385 | { "decS", eSP }, | |
386 | { "decS", eBP }, | |
387 | { "decS", eSI }, | |
388 | { "decS", eDI }, | |
389 | /* 50 */ | |
390 | { "pushS", eAX }, | |
391 | { "pushS", eCX }, | |
392 | { "pushS", eDX }, | |
393 | { "pushS", eBX }, | |
394 | { "pushS", eSP }, | |
395 | { "pushS", eBP }, | |
396 | { "pushS", eSI }, | |
397 | { "pushS", eDI }, | |
398 | /* 58 */ | |
399 | { "popS", eAX }, | |
400 | { "popS", eCX }, | |
401 | { "popS", eDX }, | |
402 | { "popS", eBX }, | |
403 | { "popS", eSP }, | |
404 | { "popS", eBP }, | |
405 | { "popS", eSI }, | |
406 | { "popS", eDI }, | |
407 | /* 60 */ | |
408 | { "pushaP" }, | |
409 | { "popaP" }, | |
410 | { "boundS", Gv, Ma }, | |
411 | { "arpl", Ew, Gw }, | |
412 | { "(bad)" }, /* seg fs */ | |
413 | { "(bad)" }, /* seg gs */ | |
414 | { "(bad)" }, /* op size prefix */ | |
415 | { "(bad)" }, /* adr size prefix */ | |
416 | /* 68 */ | |
417 | { "pushP", Iv }, /* 386 book wrong */ | |
418 | { "imulS", Gv, Ev, Iv }, | |
419 | { "pushP", sIb }, /* push of byte really pushes 2 or 4 bytes */ | |
420 | { "imulS", Gv, Ev, sIb }, | |
421 | { "insb", Yb, indirDX }, | |
422 | { "insR", Yv, indirDX }, | |
423 | { "outsb", indirDX, Xb }, | |
424 | { "outsR", indirDX, Xv }, | |
425 | /* 70 */ | |
426 | { "jo", Jb }, | |
427 | { "jno", Jb }, | |
428 | { "jb", Jb }, | |
429 | { "jae", Jb }, | |
430 | { "je", Jb }, | |
431 | { "jne", Jb }, | |
432 | { "jbe", Jb }, | |
433 | { "ja", Jb }, | |
434 | /* 78 */ | |
435 | { "js", Jb }, | |
436 | { "jns", Jb }, | |
437 | { "jp", Jb }, | |
438 | { "jnp", Jb }, | |
439 | { "jl", Jb }, | |
440 | { "jge", Jb }, | |
441 | { "jle", Jb }, | |
442 | { "jg", Jb }, | |
443 | /* 80 */ | |
444 | { GRP1b }, | |
445 | { GRP1S }, | |
446 | { "(bad)" }, | |
447 | { GRP1Ss }, | |
448 | { "testB", Eb, Gb }, | |
449 | { "testS", Ev, Gv }, | |
450 | { "xchgB", Eb, Gb }, | |
451 | { "xchgS", Ev, Gv }, | |
452 | /* 88 */ | |
453 | { "movB", Eb, Gb }, | |
454 | { "movS", Ev, Gv }, | |
455 | { "movB", Gb, Eb }, | |
456 | { "movS", Gv, Ev }, | |
457 | { "movQ", Ev, Sw }, | |
458 | { "leaS", Gv, M }, | |
459 | { "movQ", Sw, Ev }, | |
460 | { "popQ", Ev }, | |
461 | /* 90 */ | |
462 | { "nop" }, | |
463 | { "xchgS", eCX, eAX }, | |
464 | { "xchgS", eDX, eAX }, | |
465 | { "xchgS", eBX, eAX }, | |
466 | { "xchgS", eSP, eAX }, | |
467 | { "xchgS", eBP, eAX }, | |
468 | { "xchgS", eSI, eAX }, | |
469 | { "xchgS", eDI, eAX }, | |
470 | /* 98 */ | |
471 | { "cWtR" }, | |
472 | { "cRtd" }, | |
473 | { "lcallP", Ap }, | |
474 | { "(bad)" }, /* fwait */ | |
475 | { "pushfP" }, | |
476 | { "popfP" }, | |
477 | { "sahf" }, | |
478 | { "lahf" }, | |
479 | /* a0 */ | |
480 | { "movB", AL, Ob }, | |
481 | { "movS", eAX, Ov }, | |
482 | { "movB", Ob, AL }, | |
483 | { "movS", Ov, eAX }, | |
484 | { "movsb", Yb, Xb }, | |
485 | { "movsR", Yv, Xv }, | |
486 | { "cmpsb", Xb, Yb }, | |
487 | { "cmpsR", Xv, Yv }, | |
488 | /* a8 */ | |
489 | { "testB", AL, Ib }, | |
490 | { "testS", eAX, Iv }, | |
491 | { "stosB", Yb, AL }, | |
492 | { "stosS", Yv, eAX }, | |
493 | { "lodsB", AL, Xb }, | |
494 | { "lodsS", eAX, Xv }, | |
495 | { "scasB", AL, Yb }, | |
496 | { "scasS", eAX, Yv }, | |
497 | /* b0 */ | |
498 | { "movB", AL, Ib }, | |
499 | { "movB", CL, Ib }, | |
500 | { "movB", DL, Ib }, | |
501 | { "movB", BL, Ib }, | |
502 | { "movB", AH, Ib }, | |
503 | { "movB", CH, Ib }, | |
504 | { "movB", DH, Ib }, | |
505 | { "movB", BH, Ib }, | |
506 | /* b8 */ | |
507 | { "movS", eAX, Iv }, | |
508 | { "movS", eCX, Iv }, | |
509 | { "movS", eDX, Iv }, | |
510 | { "movS", eBX, Iv }, | |
511 | { "movS", eSP, Iv }, | |
512 | { "movS", eBP, Iv }, | |
513 | { "movS", eSI, Iv }, | |
514 | { "movS", eDI, Iv }, | |
515 | /* c0 */ | |
516 | { GRP2b }, | |
517 | { GRP2S }, | |
518 | { "retP", Iw }, | |
519 | { "retP" }, | |
520 | { "lesS", Gv, Mp }, | |
521 | { "ldsS", Gv, Mp }, | |
522 | { "movA", Eb, Ib }, | |
523 | { "movQ", Ev, Iv }, | |
524 | /* c8 */ | |
525 | { "enterP", Iw, Ib }, | |
526 | { "leaveP" }, | |
527 | { "lretP", Iw }, | |
528 | { "lretP" }, | |
529 | { "int3" }, | |
530 | { "int", Ib }, | |
531 | { "into" }, | |
532 | { "iretP" }, | |
533 | /* d0 */ | |
534 | { GRP2b_one }, | |
535 | { GRP2S_one }, | |
536 | { GRP2b_cl }, | |
537 | { GRP2S_cl }, | |
538 | { "aam", sIb }, | |
539 | { "aad", sIb }, | |
540 | { "(bad)" }, | |
541 | { "xlat", DSBX }, | |
542 | /* d8 */ | |
543 | { FLOAT }, | |
544 | { FLOAT }, | |
545 | { FLOAT }, | |
546 | { FLOAT }, | |
547 | { FLOAT }, | |
548 | { FLOAT }, | |
549 | { FLOAT }, | |
550 | { FLOAT }, | |
551 | /* e0 */ | |
552 | { "loopne", Jb }, | |
553 | { "loope", Jb }, | |
554 | { "loop", Jb }, | |
555 | { "jEcxz", Jb }, | |
556 | { "inB", AL, Ib }, | |
557 | { "inS", eAX, Ib }, | |
558 | { "outB", Ib, AL }, | |
559 | { "outS", Ib, eAX }, | |
560 | /* e8 */ | |
561 | { "callP", Av }, | |
562 | { "jmpP", Jv }, | |
563 | { "ljmpP", Ap }, | |
564 | { "jmp", Jb }, | |
565 | { "inB", AL, indirDX }, | |
566 | { "inS", eAX, indirDX }, | |
567 | { "outB", indirDX, AL }, | |
568 | { "outS", indirDX, eAX }, | |
569 | /* f0 */ | |
570 | { "(bad)" }, /* lock prefix */ | |
571 | { "(bad)" }, | |
572 | { "(bad)" }, /* repne */ | |
573 | { "(bad)" }, /* repz */ | |
574 | { "hlt" }, | |
575 | { "cmc" }, | |
576 | { GRP3b }, | |
577 | { GRP3S }, | |
578 | /* f8 */ | |
579 | { "clc" }, | |
580 | { "stc" }, | |
581 | { "cli" }, | |
582 | { "sti" }, | |
583 | { "cld" }, | |
584 | { "std" }, | |
585 | { GRP4 }, | |
586 | { GRP5 }, | |
587 | }; | |
588 | ||
589 | static struct dis386 dis386_intel[] = { | |
590 | /* 00 */ | |
591 | { "addB", Eb, Gb }, | |
592 | { "addS", Ev, Gv }, | |
593 | { "addB", Gb, Eb }, | |
594 | { "addS", Gv, Ev }, | |
595 | { "addB", AL, Ib }, | |
596 | { "addS", eAX, Iv }, | |
597 | { "pushP", es }, | |
598 | { "popP", es }, | |
599 | /* 08 */ | |
600 | { "orB", Eb, Gb }, | |
601 | { "orS", Ev, Gv }, | |
602 | { "orB", Gb, Eb }, | |
603 | { "orS", Gv, Ev }, | |
604 | { "orB", AL, Ib }, | |
605 | { "orS", eAX, Iv }, | |
606 | { "pushP", cs }, | |
607 | { "(bad)" }, /* 0x0f extended opcode escape */ | |
608 | /* 10 */ | |
609 | { "adcB", Eb, Gb }, | |
610 | { "adcS", Ev, Gv }, | |
611 | { "adcB", Gb, Eb }, | |
612 | { "adcS", Gv, Ev }, | |
613 | { "adcB", AL, Ib }, | |
614 | { "adcS", eAX, Iv }, | |
615 | { "pushP", ss }, | |
616 | { "popP", ss }, | |
617 | /* 18 */ | |
618 | { "sbbB", Eb, Gb }, | |
619 | { "sbbS", Ev, Gv }, | |
620 | { "sbbB", Gb, Eb }, | |
621 | { "sbbS", Gv, Ev }, | |
622 | { "sbbB", AL, Ib }, | |
623 | { "sbbS", eAX, Iv }, | |
624 | { "pushP", ds }, | |
625 | { "popP", ds }, | |
626 | /* 20 */ | |
627 | { "andB", Eb, Gb }, | |
628 | { "andS", Ev, Gv }, | |
629 | { "andB", Gb, Eb }, | |
630 | { "andS", Gv, Ev }, | |
631 | { "andB", AL, Ib }, | |
632 | { "andS", eAX, Iv }, | |
633 | { "(bad)" }, /* SEG ES prefix */ | |
634 | { "daa" }, | |
635 | /* 28 */ | |
636 | { "subB", Eb, Gb }, | |
637 | { "subS", Ev, Gv }, | |
638 | { "subB", Gb, Eb }, | |
639 | { "subS", Gv, Ev }, | |
640 | { "subB", AL, Ib }, | |
641 | { "subS", eAX, Iv }, | |
642 | { "(bad)" }, /* SEG CS prefix */ | |
643 | { "das" }, | |
644 | /* 30 */ | |
645 | { "xorB", Eb, Gb }, | |
646 | { "xorS", Ev, Gv }, | |
647 | { "xorB", Gb, Eb }, | |
648 | { "xorS", Gv, Ev }, | |
649 | { "xorB", AL, Ib }, | |
650 | { "xorS", eAX, Iv }, | |
651 | { "(bad)" }, /* SEG SS prefix */ | |
652 | { "aaa" }, | |
653 | /* 38 */ | |
654 | { "cmpB", Eb, Gb }, | |
655 | { "cmpS", Ev, Gv }, | |
656 | { "cmpB", Gb, Eb }, | |
657 | { "cmpS", Gv, Ev }, | |
658 | { "cmpB", AL, Ib }, | |
659 | { "cmpS", eAX, Iv }, | |
660 | { "(bad)" }, /* SEG DS prefix */ | |
661 | { "aas" }, | |
662 | /* 40 */ | |
663 | { "incS", eAX }, | |
664 | { "incS", eCX }, | |
665 | { "incS", eDX }, | |
666 | { "incS", eBX }, | |
667 | { "incS", eSP }, | |
668 | { "incS", eBP }, | |
669 | { "incS", eSI }, | |
670 | { "incS", eDI }, | |
671 | /* 48 */ | |
672 | { "decS", eAX }, | |
673 | { "decS", eCX }, | |
674 | { "decS", eDX }, | |
675 | { "decS", eBX }, | |
676 | { "decS", eSP }, | |
677 | { "decS", eBP }, | |
678 | { "decS", eSI }, | |
679 | { "decS", eDI }, | |
680 | /* 50 */ | |
681 | { "pushS", eAX }, | |
682 | { "pushS", eCX }, | |
683 | { "pushS", eDX }, | |
684 | { "pushS", eBX }, | |
685 | { "pushS", eSP }, | |
686 | { "pushS", eBP }, | |
687 | { "pushS", eSI }, | |
688 | { "pushS", eDI }, | |
689 | /* 58 */ | |
690 | { "popS", eAX }, | |
691 | { "popS", eCX }, | |
692 | { "popS", eDX }, | |
693 | { "popS", eBX }, | |
694 | { "popS", eSP }, | |
695 | { "popS", eBP }, | |
696 | { "popS", eSI }, | |
697 | { "popS", eDI }, | |
698 | /* 60 */ | |
699 | { "pushaP" }, | |
700 | { "popaP" }, | |
701 | { "boundS", Gv, Ma }, | |
702 | { "arpl", Ew, Gw }, | |
703 | { "(bad)" }, /* seg fs */ | |
704 | { "(bad)" }, /* seg gs */ | |
705 | { "(bad)" }, /* op size prefix */ | |
706 | { "(bad)" }, /* adr size prefix */ | |
707 | /* 68 */ | |
708 | { "pushP", Iv }, /* 386 book wrong */ | |
709 | { "imulS", Gv, Ev, Iv }, | |
710 | { "pushP", sIb }, /* push of byte really pushes 2 or 4 bytes */ | |
711 | { "imulS", Gv, Ev, sIb }, | |
712 | { "insb", Yb, indirDX }, | |
713 | { "insR", Yv, indirDX }, | |
714 | { "outsb", indirDX, Xb }, | |
715 | { "outsR", indirDX, Xv }, | |
716 | /* 70 */ | |
717 | { "jo", Jb }, | |
718 | { "jno", Jb }, | |
719 | { "jb", Jb }, | |
720 | { "jae", Jb }, | |
721 | { "je", Jb }, | |
722 | { "jne", Jb }, | |
723 | { "jbe", Jb }, | |
724 | { "ja", Jb }, | |
725 | /* 78 */ | |
726 | { "js", Jb }, | |
727 | { "jns", Jb }, | |
728 | { "jp", Jb }, | |
729 | { "jnp", Jb }, | |
730 | { "jl", Jb }, | |
731 | { "jge", Jb }, | |
732 | { "jle", Jb }, | |
733 | { "jg", Jb }, | |
734 | /* 80 */ | |
735 | { GRP1b }, | |
736 | { GRP1S }, | |
737 | { "(bad)" }, | |
738 | { GRP1Ss }, | |
739 | { "testB", Eb, Gb }, | |
740 | { "testS", Ev, Gv }, | |
741 | { "xchgB", Eb, Gb }, | |
742 | { "xchgS", Ev, Gv }, | |
743 | /* 88 */ | |
744 | { "movB", Eb, Gb }, | |
745 | { "movS", Ev, Gv }, | |
746 | { "movB", Gb, Eb }, | |
747 | { "movS", Gv, Ev }, | |
748 | { "movQ", Ev, Sw }, | |
749 | { "leaS", Gv, M }, | |
750 | { "movQ", Sw, Ev }, | |
751 | { "popQ", Ev }, | |
752 | /* 90 */ | |
753 | { "nop" }, | |
754 | { "xchgS", eCX, eAX }, | |
755 | { "xchgS", eDX, eAX }, | |
756 | { "xchgS", eBX, eAX }, | |
757 | { "xchgS", eSP, eAX }, | |
758 | { "xchgS", eBP, eAX }, | |
759 | { "xchgS", eSI, eAX }, | |
760 | { "xchgS", eDI, eAX }, | |
761 | /* 98 */ | |
762 | { "cWtR" }, | |
763 | { "cRtd" }, | |
764 | { "lcallP", Ap }, | |
765 | { "(bad)" }, /* fwait */ | |
766 | { "pushfP" }, | |
767 | { "popfP" }, | |
768 | { "sahf" }, | |
769 | { "lahf" }, | |
770 | /* a0 */ | |
771 | { "movB", AL, Ob }, | |
772 | { "movS", eAX, Ov }, | |
773 | { "movB", Ob, AL }, | |
774 | { "movS", Ov, eAX }, | |
775 | { "movsb", Yb, Xb }, | |
776 | { "movsR", Yv, Xv }, | |
777 | { "cmpsb", Xb, Yb }, | |
778 | { "cmpsR", Xv, Yv }, | |
779 | /* a8 */ | |
780 | { "testB", AL, Ib }, | |
781 | { "testS", eAX, Iv }, | |
782 | { "stosB", Yb, AL }, | |
783 | { "stosS", Yv, eAX }, | |
784 | { "lodsB", AL, Xb }, | |
785 | { "lodsS", eAX, Xv }, | |
786 | { "scasB", AL, Yb }, | |
787 | { "scasS", eAX, Yv }, | |
788 | /* b0 */ | |
789 | { "movB", AL, Ib }, | |
790 | { "movB", CL, Ib }, | |
791 | { "movB", DL, Ib }, | |
792 | { "movB", BL, Ib }, | |
793 | { "movB", AH, Ib }, | |
794 | { "movB", CH, Ib }, | |
795 | { "movB", DH, Ib }, | |
796 | { "movB", BH, Ib }, | |
797 | /* b8 */ | |
798 | { "movS", eAX, Iv }, | |
799 | { "movS", eCX, Iv }, | |
800 | { "movS", eDX, Iv }, | |
801 | { "movS", eBX, Iv }, | |
802 | { "movS", eSP, Iv }, | |
803 | { "movS", eBP, Iv }, | |
804 | { "movS", eSI, Iv }, | |
805 | { "movS", eDI, Iv }, | |
806 | /* c0 */ | |
807 | { GRP2b }, | |
808 | { GRP2S }, | |
809 | { "retP", Iw }, | |
810 | { "retP" }, | |
811 | { "lesS", Gv, Mp }, | |
812 | { "ldsS", Gv, Mp }, | |
813 | { "movA", Eb, Ib }, | |
814 | { "movQ", Ev, Iv }, | |
815 | /* c8 */ | |
816 | { "enterP", Iw, Ib }, | |
817 | { "leaveP" }, | |
818 | { "lretP", Iw }, | |
819 | { "lretP" }, | |
820 | { "int3" }, | |
821 | { "int", Ib }, | |
822 | { "into" }, | |
823 | { "iretP" }, | |
824 | /* d0 */ | |
825 | { GRP2b_one }, | |
826 | { GRP2S_one }, | |
827 | { GRP2b_cl }, | |
828 | { GRP2S_cl }, | |
829 | { "aam", sIb }, | |
830 | { "aad", sIb }, | |
831 | { "(bad)" }, | |
832 | { "xlat", DSBX }, | |
833 | /* d8 */ | |
834 | { FLOAT }, | |
835 | { FLOAT }, | |
836 | { FLOAT }, | |
837 | { FLOAT }, | |
838 | { FLOAT }, | |
839 | { FLOAT }, | |
840 | { FLOAT }, | |
841 | { FLOAT }, | |
842 | /* e0 */ | |
843 | { "loopne", Jb }, | |
844 | { "loope", Jb }, | |
845 | { "loop", Jb }, | |
846 | { "jEcxz", Jb }, | |
847 | { "inB", AL, Ib }, | |
848 | { "inS", eAX, Ib }, | |
849 | { "outB", Ib, AL }, | |
850 | { "outS", Ib, eAX }, | |
851 | /* e8 */ | |
852 | { "callP", Av }, | |
853 | { "jmpP", Jv }, | |
854 | { "ljmpP", Ap }, | |
855 | { "jmp", Jb }, | |
856 | { "inB", AL, indirDX }, | |
857 | { "inS", eAX, indirDX }, | |
858 | { "outB", indirDX, AL }, | |
859 | { "outS", indirDX, eAX }, | |
860 | /* f0 */ | |
861 | { "(bad)" }, /* lock prefix */ | |
862 | { "(bad)" }, | |
863 | { "(bad)" }, /* repne */ | |
864 | { "(bad)" }, /* repz */ | |
865 | { "hlt" }, | |
866 | { "cmc" }, | |
867 | { GRP3b }, | |
868 | { GRP3S }, | |
869 | /* f8 */ | |
870 | { "clc" }, | |
871 | { "stc" }, | |
872 | { "cli" }, | |
873 | { "sti" }, | |
874 | { "cld" }, | |
875 | { "std" }, | |
876 | { GRP4 }, | |
877 | { GRP5 }, | |
878 | }; | |
879 | ||
880 | static struct dis386 dis386_twobyte_att[] = { | |
881 | /* 00 */ | |
882 | { GRP6 }, | |
883 | { GRP7 }, | |
884 | { "larS", Gv, Ew }, | |
885 | { "lslS", Gv, Ew }, | |
886 | { "(bad)" }, | |
887 | { "(bad)" }, | |
888 | { "clts" }, | |
889 | { "(bad)" }, | |
890 | /* 08 */ | |
891 | { "invd" }, | |
892 | { "wbinvd" }, | |
893 | { "(bad)" }, | |
894 | { "ud2a" }, | |
895 | { "(bad)" }, | |
896 | { GRP14 }, | |
897 | { "femms" }, | |
898 | { "", MX, EM, OPSUF }, /* See OP_3DNowSuffix */ | |
899 | /* 10 */ | |
900 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
901 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
902 | /* 18 */ | |
903 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
904 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
905 | /* 20 */ | |
906 | /* these are all backward in appendix A of the intel book */ | |
907 | { "movL", Rd, Cd }, | |
908 | { "movL", Rd, Dd }, | |
909 | { "movL", Cd, Rd }, | |
910 | { "movL", Dd, Rd }, | |
911 | { "movL", Rd, Td }, | |
912 | { "(bad)" }, | |
913 | { "movL", Td, Rd }, | |
914 | { "(bad)" }, | |
915 | /* 28 */ | |
916 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
917 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
918 | /* 30 */ | |
919 | { "wrmsr" }, { "rdtsc" }, { "rdmsr" }, { "rdpmc" }, | |
920 | { "sysenter" }, { "sysexit" }, { "(bad)" }, { "(bad)" }, | |
921 | /* 38 */ | |
922 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
923 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
924 | /* 40 */ | |
925 | { "cmovo", Gv,Ev }, { "cmovno", Gv,Ev }, { "cmovb", Gv,Ev }, { "cmovae", Gv,Ev }, | |
926 | { "cmove", Gv,Ev }, { "cmovne", Gv,Ev }, { "cmovbe", Gv,Ev }, { "cmova", Gv,Ev }, | |
927 | /* 48 */ | |
928 | { "cmovs", Gv,Ev }, { "cmovns", Gv,Ev }, { "cmovp", Gv,Ev }, { "cmovnp", Gv,Ev }, | |
929 | { "cmovl", Gv,Ev }, { "cmovge", Gv,Ev }, { "cmovle", Gv,Ev }, { "cmovg", Gv,Ev }, | |
930 | /* 50 */ | |
931 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
932 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
933 | /* 58 */ | |
934 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
935 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
936 | /* 60 */ | |
937 | { "punpcklbw", MX, EM }, | |
938 | { "punpcklwd", MX, EM }, | |
939 | { "punpckldq", MX, EM }, | |
940 | { "packsswb", MX, EM }, | |
941 | { "pcmpgtb", MX, EM }, | |
942 | { "pcmpgtw", MX, EM }, | |
943 | { "pcmpgtd", MX, EM }, | |
944 | { "packuswb", MX, EM }, | |
945 | /* 68 */ | |
946 | { "punpckhbw", MX, EM }, | |
947 | { "punpckhwd", MX, EM }, | |
948 | { "punpckhdq", MX, EM }, | |
949 | { "packssdw", MX, EM }, | |
950 | { "(bad)" }, { "(bad)" }, | |
951 | { "movd", MX, Ev }, | |
952 | { "movq", MX, EM }, | |
953 | /* 70 */ | |
954 | { "(bad)" }, | |
955 | { GRP10 }, | |
956 | { GRP11 }, | |
957 | { GRP12 }, | |
958 | { "pcmpeqb", MX, EM }, | |
959 | { "pcmpeqw", MX, EM }, | |
960 | { "pcmpeqd", MX, EM }, | |
961 | { "emms" }, | |
962 | /* 78 */ | |
963 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
964 | { "(bad)" }, { "(bad)" }, | |
965 | { "movd", Ev, MX }, | |
966 | { "movq", EM, MX }, | |
967 | /* 80 */ | |
968 | { "jo", Jv }, | |
969 | { "jno", Jv }, | |
970 | { "jb", Jv }, | |
971 | { "jae", Jv }, | |
972 | { "je", Jv }, | |
973 | { "jne", Jv }, | |
974 | { "jbe", Jv }, | |
975 | { "ja", Jv }, | |
976 | /* 88 */ | |
977 | { "js", Jv }, | |
978 | { "jns", Jv }, | |
979 | { "jp", Jv }, | |
980 | { "jnp", Jv }, | |
981 | { "jl", Jv }, | |
982 | { "jge", Jv }, | |
983 | { "jle", Jv }, | |
984 | { "jg", Jv }, | |
985 | /* 90 */ | |
986 | { "seto", Eb }, | |
987 | { "setno", Eb }, | |
988 | { "setb", Eb }, | |
989 | { "setae", Eb }, | |
990 | { "sete", Eb }, | |
991 | { "setne", Eb }, | |
992 | { "setbe", Eb }, | |
993 | { "seta", Eb }, | |
994 | /* 98 */ | |
995 | { "sets", Eb }, | |
996 | { "setns", Eb }, | |
997 | { "setp", Eb }, | |
998 | { "setnp", Eb }, | |
999 | { "setl", Eb }, | |
1000 | { "setge", Eb }, | |
1001 | { "setle", Eb }, | |
1002 | { "setg", Eb }, | |
1003 | /* a0 */ | |
1004 | { "pushP", fs }, | |
1005 | { "popP", fs }, | |
1006 | { "cpuid" }, | |
1007 | { "btS", Ev, Gv }, | |
1008 | { "shldS", Ev, Gv, Ib }, | |
1009 | { "shldS", Ev, Gv, CL }, | |
1010 | { "(bad)" }, | |
1011 | { "(bad)" }, | |
1012 | /* a8 */ | |
1013 | { "pushP", gs }, | |
1014 | { "popP", gs }, | |
1015 | { "rsm" }, | |
1016 | { "btsS", Ev, Gv }, | |
1017 | { "shrdS", Ev, Gv, Ib }, | |
1018 | { "shrdS", Ev, Gv, CL }, | |
1019 | { GRP13 }, | |
1020 | { "imulS", Gv, Ev }, | |
1021 | /* b0 */ | |
1022 | { "cmpxchgB", Eb, Gb }, | |
1023 | { "cmpxchgS", Ev, Gv }, | |
1024 | { "lssS", Gv, Mp }, /* 386 lists only Mp */ | |
1025 | { "btrS", Ev, Gv }, | |
1026 | { "lfsS", Gv, Mp }, /* 386 lists only Mp */ | |
1027 | { "lgsS", Gv, Mp }, /* 386 lists only Mp */ | |
1028 | { "movzbR", Gv, Eb }, | |
1029 | { "movzwR", Gv, Ew }, /* yes, there really is movzww ! */ | |
1030 | /* b8 */ | |
1031 | { "(bad)" }, | |
1032 | { "ud2b" }, | |
1033 | { GRP8 }, | |
1034 | { "btcS", Ev, Gv }, | |
1035 | { "bsfS", Gv, Ev }, | |
1036 | { "bsrS", Gv, Ev }, | |
1037 | { "movsbR", Gv, Eb }, | |
1038 | { "movswR", Gv, Ew }, /* yes, there really is movsww ! */ | |
1039 | /* c0 */ | |
1040 | { "xaddB", Eb, Gb }, | |
1041 | { "xaddS", Ev, Gv }, | |
1042 | { "(bad)" }, | |
1043 | { "(bad)" }, | |
1044 | { "(bad)" }, | |
1045 | { "(bad)" }, | |
1046 | { "(bad)" }, | |
1047 | { GRP9 }, | |
1048 | /* c8 */ | |
1049 | { "bswap", eAX }, /* bswap doesn't support 16 bit regs */ | |
1050 | { "bswap", eCX }, | |
1051 | { "bswap", eDX }, | |
1052 | { "bswap", eBX }, | |
1053 | { "bswap", eSP }, | |
1054 | { "bswap", eBP }, | |
1055 | { "bswap", eSI }, | |
1056 | { "bswap", eDI }, | |
1057 | /* d0 */ | |
1058 | { "(bad)" }, | |
1059 | { "psrlw", MX, EM }, | |
1060 | { "psrld", MX, EM }, | |
1061 | { "psrlq", MX, EM }, | |
1062 | { "(bad)" }, | |
1063 | { "pmullw", MX, EM }, | |
1064 | { "(bad)" }, { "(bad)" }, | |
1065 | /* d8 */ | |
1066 | { "psubusb", MX, EM }, | |
1067 | { "psubusw", MX, EM }, | |
1068 | { "(bad)" }, | |
1069 | { "pand", MX, EM }, | |
1070 | { "paddusb", MX, EM }, | |
1071 | { "paddusw", MX, EM }, | |
1072 | { "(bad)" }, | |
1073 | { "pandn", MX, EM }, | |
1074 | /* e0 */ | |
1075 | { "(bad)" }, | |
1076 | { "psraw", MX, EM }, | |
1077 | { "psrad", MX, EM }, | |
1078 | { "(bad)" }, | |
1079 | { "(bad)" }, | |
1080 | { "pmulhw", MX, EM }, | |
1081 | { "(bad)" }, { "(bad)" }, | |
1082 | /* e8 */ | |
1083 | { "psubsb", MX, EM }, | |
1084 | { "psubsw", MX, EM }, | |
1085 | { "(bad)" }, | |
1086 | { "por", MX, EM }, | |
1087 | { "paddsb", MX, EM }, | |
1088 | { "paddsw", MX, EM }, | |
1089 | { "(bad)" }, | |
1090 | { "pxor", MX, EM }, | |
1091 | /* f0 */ | |
1092 | { "(bad)" }, | |
1093 | { "psllw", MX, EM }, | |
1094 | { "pslld", MX, EM }, | |
1095 | { "psllq", MX, EM }, | |
1096 | { "(bad)" }, | |
1097 | { "pmaddwd", MX, EM }, | |
1098 | { "(bad)" }, { "(bad)" }, | |
1099 | /* f8 */ | |
1100 | { "psubb", MX, EM }, | |
1101 | { "psubw", MX, EM }, | |
1102 | { "psubd", MX, EM }, | |
1103 | { "(bad)" }, | |
1104 | { "paddb", MX, EM }, | |
1105 | { "paddw", MX, EM }, | |
1106 | { "paddd", MX, EM }, | |
1107 | { "(bad)" } | |
1108 | }; | |
1109 | ||
1110 | static struct dis386 dis386_twobyte_intel[] = { | |
1111 | /* 00 */ | |
1112 | { GRP6 }, | |
1113 | { GRP7 }, | |
1114 | { "larS", Gv, Ew }, | |
1115 | { "lslS", Gv, Ew }, | |
1116 | { "(bad)" }, | |
1117 | { "(bad)" }, | |
1118 | { "clts" }, | |
1119 | { "(bad)" }, | |
1120 | /* 08 */ | |
1121 | { "invd" }, | |
1122 | { "wbinvd" }, | |
1123 | { "(bad)" }, | |
1124 | { "ud2a" }, | |
1125 | { "(bad)" }, | |
1126 | { GRP14 }, | |
1127 | { "femms" }, | |
1128 | { "", MX, EM, OPSUF }, /* See OP_3DNowSuffix */ | |
1129 | /* 10 */ | |
1130 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1131 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1132 | /* 18 */ | |
1133 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1134 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1135 | /* 20 */ | |
1136 | /* these are all backward in appendix A of the intel book */ | |
1137 | { "movL", Rd, Cd }, | |
1138 | { "movL", Rd, Dd }, | |
1139 | { "movL", Cd, Rd }, | |
1140 | { "movL", Dd, Rd }, | |
1141 | { "movL", Rd, Td }, | |
1142 | { "(bad)" }, | |
1143 | { "movL", Td, Rd }, | |
1144 | { "(bad)" }, | |
1145 | /* 28 */ | |
1146 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1147 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1148 | /* 30 */ | |
1149 | { "wrmsr" }, { "rdtsc" }, { "rdmsr" }, { "rdpmc" }, | |
1150 | { "sysenter" }, { "sysexit" }, { "(bad)" }, { "(bad)" }, | |
1151 | /* 38 */ | |
1152 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1153 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1154 | /* 40 */ | |
1155 | { "cmovo", Gv,Ev }, { "cmovno", Gv,Ev }, { "cmovb", Gv,Ev }, { "cmovae", Gv,Ev }, | |
1156 | { "cmove", Gv,Ev }, { "cmovne", Gv,Ev }, { "cmovbe", Gv,Ev }, { "cmova", Gv,Ev }, | |
1157 | /* 48 */ | |
1158 | { "cmovs", Gv,Ev }, { "cmovns", Gv,Ev }, { "cmovp", Gv,Ev }, { "cmovnp", Gv,Ev }, | |
1159 | { "cmovl", Gv,Ev }, { "cmovge", Gv,Ev }, { "cmovle", Gv,Ev }, { "cmovg", Gv,Ev }, | |
1160 | /* 50 */ | |
1161 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1162 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1163 | /* 58 */ | |
1164 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1165 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1166 | /* 60 */ | |
1167 | { "punpcklbw", MX, EM }, | |
1168 | { "punpcklwd", MX, EM }, | |
1169 | { "punpckldq", MX, EM }, | |
1170 | { "packsswb", MX, EM }, | |
1171 | { "pcmpgtb", MX, EM }, | |
1172 | { "pcmpgtw", MX, EM }, | |
1173 | { "pcmpgtd", MX, EM }, | |
1174 | { "packuswb", MX, EM }, | |
1175 | /* 68 */ | |
1176 | { "punpckhbw", MX, EM }, | |
1177 | { "punpckhwd", MX, EM }, | |
1178 | { "punpckhdq", MX, EM }, | |
1179 | { "packssdw", MX, EM }, | |
1180 | { "(bad)" }, { "(bad)" }, | |
1181 | { "movd", MX, Ev }, | |
1182 | { "movq", MX, EM }, | |
1183 | /* 70 */ | |
1184 | { "(bad)" }, | |
1185 | { GRP10 }, | |
1186 | { GRP11 }, | |
1187 | { GRP12 }, | |
1188 | { "pcmpeqb", MX, EM }, | |
1189 | { "pcmpeqw", MX, EM }, | |
1190 | { "pcmpeqd", MX, EM }, | |
1191 | { "emms" }, | |
1192 | /* 78 */ | |
1193 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1194 | { "(bad)" }, { "(bad)" }, | |
1195 | { "movd", Ev, MX }, | |
1196 | { "movq", EM, MX }, | |
1197 | /* 80 */ | |
1198 | { "jo", Jv }, | |
1199 | { "jno", Jv }, | |
1200 | { "jb", Jv }, | |
1201 | { "jae", Jv }, | |
1202 | { "je", Jv }, | |
1203 | { "jne", Jv }, | |
1204 | { "jbe", Jv }, | |
1205 | { "ja", Jv }, | |
1206 | /* 88 */ | |
1207 | { "js", Jv }, | |
1208 | { "jns", Jv }, | |
1209 | { "jp", Jv }, | |
1210 | { "jnp", Jv }, | |
1211 | { "jl", Jv }, | |
1212 | { "jge", Jv }, | |
1213 | { "jle", Jv }, | |
1214 | { "jg", Jv }, | |
1215 | /* 90 */ | |
1216 | { "seto", Eb }, | |
1217 | { "setno", Eb }, | |
1218 | { "setb", Eb }, | |
1219 | { "setae", Eb }, | |
1220 | { "sete", Eb }, | |
1221 | { "setne", Eb }, | |
1222 | { "setbe", Eb }, | |
1223 | { "seta", Eb }, | |
1224 | /* 98 */ | |
1225 | { "sets", Eb }, | |
1226 | { "setns", Eb }, | |
1227 | { "setp", Eb }, | |
1228 | { "setnp", Eb }, | |
1229 | { "setl", Eb }, | |
1230 | { "setge", Eb }, | |
1231 | { "setle", Eb }, | |
1232 | { "setg", Eb }, | |
1233 | /* a0 */ | |
1234 | { "pushP", fs }, | |
1235 | { "popP", fs }, | |
1236 | { "cpuid" }, | |
1237 | { "btS", Ev, Gv }, | |
1238 | { "shldS", Ev, Gv, Ib }, | |
1239 | { "shldS", Ev, Gv, CL }, | |
1240 | { "(bad)" }, | |
1241 | { "(bad)" }, | |
1242 | /* a8 */ | |
1243 | { "pushP", gs }, | |
1244 | { "popP", gs }, | |
1245 | { "rsm" }, | |
1246 | { "btsS", Ev, Gv }, | |
1247 | { "shrdS", Ev, Gv, Ib }, | |
1248 | { "shrdS", Ev, Gv, CL }, | |
1249 | { GRP13 }, | |
1250 | { "imulS", Gv, Ev }, | |
1251 | /* b0 */ | |
1252 | { "cmpxchgB", Eb, Gb }, | |
1253 | { "cmpxchgS", Ev, Gv }, | |
1254 | { "lssS", Gv, Mp }, /* 386 lists only Mp */ | |
1255 | { "btrS", Ev, Gv }, | |
1256 | { "lfsS", Gv, Mp }, /* 386 lists only Mp */ | |
1257 | { "lgsS", Gv, Mp }, /* 386 lists only Mp */ | |
1258 | { "movzx", Gv, Eb }, | |
1259 | { "movzx", Gv, Ew }, | |
1260 | /* b8 */ | |
1261 | { "(bad)" }, | |
1262 | { "ud2b" }, | |
1263 | { GRP8 }, | |
1264 | { "btcS", Ev, Gv }, | |
1265 | { "bsfS", Gv, Ev }, | |
1266 | { "bsrS", Gv, Ev }, | |
1267 | { "movsx", Gv, Eb }, | |
1268 | { "movsx", Gv, Ew }, | |
1269 | /* c0 */ | |
1270 | { "xaddB", Eb, Gb }, | |
1271 | { "xaddS", Ev, Gv }, | |
1272 | { "(bad)" }, | |
1273 | { "(bad)" }, | |
1274 | { "(bad)" }, | |
1275 | { "(bad)" }, | |
1276 | { "(bad)" }, | |
1277 | { GRP9 }, | |
1278 | /* c8 */ | |
1279 | { "bswap", eAX }, /* bswap doesn't support 16 bit regs */ | |
1280 | { "bswap", eCX }, | |
1281 | { "bswap", eDX }, | |
1282 | { "bswap", eBX }, | |
1283 | { "bswap", eSP }, | |
1284 | { "bswap", eBP }, | |
1285 | { "bswap", eSI }, | |
1286 | { "bswap", eDI }, | |
1287 | /* d0 */ | |
1288 | { "(bad)" }, | |
1289 | { "psrlw", MX, EM }, | |
1290 | { "psrld", MX, EM }, | |
1291 | { "psrlq", MX, EM }, | |
1292 | { "(bad)" }, | |
1293 | { "pmullw", MX, EM }, | |
1294 | { "(bad)" }, { "(bad)" }, | |
1295 | /* d8 */ | |
1296 | { "psubusb", MX, EM }, | |
1297 | { "psubusw", MX, EM }, | |
1298 | { "(bad)" }, | |
1299 | { "pand", MX, EM }, | |
1300 | { "paddusb", MX, EM }, | |
1301 | { "paddusw", MX, EM }, | |
1302 | { "(bad)" }, | |
1303 | { "pandn", MX, EM }, | |
1304 | /* e0 */ | |
1305 | { "(bad)" }, | |
1306 | { "psraw", MX, EM }, | |
1307 | { "psrad", MX, EM }, | |
1308 | { "(bad)" }, | |
1309 | { "(bad)" }, | |
1310 | { "pmulhw", MX, EM }, | |
1311 | { "(bad)" }, { "(bad)" }, | |
1312 | /* e8 */ | |
1313 | { "psubsb", MX, EM }, | |
1314 | { "psubsw", MX, EM }, | |
1315 | { "(bad)" }, | |
1316 | { "por", MX, EM }, | |
1317 | { "paddsb", MX, EM }, | |
1318 | { "paddsw", MX, EM }, | |
1319 | { "(bad)" }, | |
1320 | { "pxor", MX, EM }, | |
1321 | /* f0 */ | |
1322 | { "(bad)" }, | |
1323 | { "psllw", MX, EM }, | |
1324 | { "pslld", MX, EM }, | |
1325 | { "psllq", MX, EM }, | |
1326 | { "(bad)" }, | |
1327 | { "pmaddwd", MX, EM }, | |
1328 | { "(bad)" }, { "(bad)" }, | |
1329 | /* f8 */ | |
1330 | { "psubb", MX, EM }, | |
1331 | { "psubw", MX, EM }, | |
1332 | { "psubd", MX, EM }, | |
1333 | { "(bad)" }, | |
1334 | { "paddb", MX, EM }, | |
1335 | { "paddw", MX, EM }, | |
1336 | { "paddd", MX, EM }, | |
1337 | { "(bad)" } | |
1338 | }; | |
1339 | ||
1340 | static const unsigned char onebyte_has_modrm[256] = { | |
1341 | 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, | |
1342 | 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, | |
1343 | 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, | |
1344 | 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, | |
1345 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
1346 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
1347 | 0,0,1,1,0,0,0,0,0,1,0,1,0,0,0,0, | |
1348 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
1349 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, | |
1350 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
1351 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
1352 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
1353 | 1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,0, | |
1354 | 1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, | |
1355 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, | |
1356 | 0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1 | |
1357 | }; | |
1358 | ||
1359 | static const unsigned char twobyte_has_modrm[256] = { | |
1360 | /* 00 */ 1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,1, /* 0f */ | |
1361 | /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */ | |
1362 | /* 20 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* 2f */ | |
1363 | /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */ | |
1364 | /* 40 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4f */ | |
1365 | /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */ | |
1366 | /* 60 */ 1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1, /* 6f */ | |
1367 | /* 70 */ 0,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1, /* 7f */ | |
1368 | /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */ | |
1369 | /* 90 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 9f */ | |
1370 | /* a0 */ 0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1, /* af */ | |
1371 | /* b0 */ 1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1, /* bf */ | |
1372 | /* c0 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* cf */ | |
1373 | /* d0 */ 0,1,1,1,0,1,0,0,1,1,0,1,1,1,0,1, /* df */ | |
1374 | /* e0 */ 0,1,1,0,0,1,0,0,1,1,0,1,1,1,0,1, /* ef */ | |
1375 | /* f0 */ 0,1,1,1,0,1,0,0,1,1,1,0,1,1,1,0 /* ff */ | |
1376 | }; | |
1377 | ||
1378 | static char obuf[100]; | |
1379 | static char *obufp; | |
1380 | static char scratchbuf[100]; | |
1381 | static unsigned char *start_codep; | |
1382 | static unsigned char *insn_codep; | |
1383 | static unsigned char *codep; | |
1384 | static disassemble_info *the_info; | |
1385 | static int mod; | |
1386 | static int rm; | |
1387 | static int reg; | |
1388 | static void oappend PARAMS ((char *s)); | |
1389 | ||
1390 | static char *names32[]={ | |
1391 | "%eax","%ecx","%edx","%ebx", "%esp","%ebp","%esi","%edi", | |
1392 | }; | |
1393 | static char *names16[] = { | |
1394 | "%ax","%cx","%dx","%bx","%sp","%bp","%si","%di", | |
1395 | }; | |
1396 | static char *names8[] = { | |
1397 | "%al","%cl","%dl","%bl","%ah","%ch","%dh","%bh", | |
1398 | }; | |
1399 | static char *names_seg[] = { | |
1400 | "%es","%cs","%ss","%ds","%fs","%gs","%?","%?", | |
1401 | }; | |
1402 | static char *index16[] = { | |
1403 | "%bx,%si","%bx,%di","%bp,%si","%bp,%di","%si","%di","%bp","%bx" | |
1404 | }; | |
1405 | ||
1406 | static struct dis386 grps[][8] = { | |
1407 | /* GRP1b */ | |
1408 | { | |
1409 | { "addA", Eb, Ib }, | |
1410 | { "orA", Eb, Ib }, | |
1411 | { "adcA", Eb, Ib }, | |
1412 | { "sbbA", Eb, Ib }, | |
1413 | { "andA", Eb, Ib }, | |
1414 | { "subA", Eb, Ib }, | |
1415 | { "xorA", Eb, Ib }, | |
1416 | { "cmpA", Eb, Ib } | |
1417 | }, | |
1418 | /* GRP1S */ | |
1419 | { | |
1420 | { "addQ", Ev, Iv }, | |
1421 | { "orQ", Ev, Iv }, | |
1422 | { "adcQ", Ev, Iv }, | |
1423 | { "sbbQ", Ev, Iv }, | |
1424 | { "andQ", Ev, Iv }, | |
1425 | { "subQ", Ev, Iv }, | |
1426 | { "xorQ", Ev, Iv }, | |
1427 | { "cmpQ", Ev, Iv } | |
1428 | }, | |
1429 | /* GRP1Ss */ | |
1430 | { | |
1431 | { "addQ", Ev, sIb }, | |
1432 | { "orQ", Ev, sIb }, | |
1433 | { "adcQ", Ev, sIb }, | |
1434 | { "sbbQ", Ev, sIb }, | |
1435 | { "andQ", Ev, sIb }, | |
1436 | { "subQ", Ev, sIb }, | |
1437 | { "xorQ", Ev, sIb }, | |
1438 | { "cmpQ", Ev, sIb } | |
1439 | }, | |
1440 | /* GRP2b */ | |
1441 | { | |
1442 | { "rolA", Eb, Ib }, | |
1443 | { "rorA", Eb, Ib }, | |
1444 | { "rclA", Eb, Ib }, | |
1445 | { "rcrA", Eb, Ib }, | |
1446 | { "shlA", Eb, Ib }, | |
1447 | { "shrA", Eb, Ib }, | |
1448 | { "(bad)" }, | |
1449 | { "sarA", Eb, Ib }, | |
1450 | }, | |
1451 | /* GRP2S */ | |
1452 | { | |
1453 | { "rolQ", Ev, Ib }, | |
1454 | { "rorQ", Ev, Ib }, | |
1455 | { "rclQ", Ev, Ib }, | |
1456 | { "rcrQ", Ev, Ib }, | |
1457 | { "shlQ", Ev, Ib }, | |
1458 | { "shrQ", Ev, Ib }, | |
1459 | { "(bad)" }, | |
1460 | { "sarQ", Ev, Ib }, | |
1461 | }, | |
1462 | /* GRP2b_one */ | |
1463 | { | |
1464 | { "rolA", Eb }, | |
1465 | { "rorA", Eb }, | |
1466 | { "rclA", Eb }, | |
1467 | { "rcrA", Eb }, | |
1468 | { "shlA", Eb }, | |
1469 | { "shrA", Eb }, | |
1470 | { "(bad)" }, | |
1471 | { "sarA", Eb }, | |
1472 | }, | |
1473 | /* GRP2S_one */ | |
1474 | { | |
1475 | { "rolQ", Ev }, | |
1476 | { "rorQ", Ev }, | |
1477 | { "rclQ", Ev }, | |
1478 | { "rcrQ", Ev }, | |
1479 | { "shlQ", Ev }, | |
1480 | { "shrQ", Ev }, | |
1481 | { "(bad)" }, | |
1482 | { "sarQ", Ev }, | |
1483 | }, | |
1484 | /* GRP2b_cl */ | |
1485 | { | |
1486 | { "rolA", Eb, CL }, | |
1487 | { "rorA", Eb, CL }, | |
1488 | { "rclA", Eb, CL }, | |
1489 | { "rcrA", Eb, CL }, | |
1490 | { "shlA", Eb, CL }, | |
1491 | { "shrA", Eb, CL }, | |
1492 | { "(bad)" }, | |
1493 | { "sarA", Eb, CL }, | |
1494 | }, | |
1495 | /* GRP2S_cl */ | |
1496 | { | |
1497 | { "rolQ", Ev, CL }, | |
1498 | { "rorQ", Ev, CL }, | |
1499 | { "rclQ", Ev, CL }, | |
1500 | { "rcrQ", Ev, CL }, | |
1501 | { "shlQ", Ev, CL }, | |
1502 | { "shrQ", Ev, CL }, | |
1503 | { "(bad)" }, | |
1504 | { "sarQ", Ev, CL } | |
1505 | }, | |
1506 | /* GRP3b */ | |
1507 | { | |
1508 | { "testA", Eb, Ib }, | |
1509 | { "(bad)", Eb }, | |
1510 | { "notA", Eb }, | |
1511 | { "negA", Eb }, | |
1512 | { "mulB", AL, Eb }, | |
1513 | { "imulB", AL, Eb }, | |
1514 | { "divB", AL, Eb }, | |
1515 | { "idivB", AL, Eb } | |
1516 | }, | |
1517 | /* GRP3S */ | |
1518 | { | |
1519 | { "testQ", Ev, Iv }, | |
1520 | { "(bad)" }, | |
1521 | { "notQ", Ev }, | |
1522 | { "negQ", Ev }, | |
1523 | { "mulS", eAX, Ev }, | |
1524 | { "imulS", eAX, Ev }, | |
1525 | { "divS", eAX, Ev }, | |
1526 | { "idivS", eAX, Ev }, | |
1527 | }, | |
1528 | /* GRP4 */ | |
1529 | { | |
1530 | { "incA", Eb }, | |
1531 | { "decA", Eb }, | |
1532 | { "(bad)" }, | |
1533 | { "(bad)" }, | |
1534 | { "(bad)" }, | |
1535 | { "(bad)" }, | |
1536 | { "(bad)" }, | |
1537 | { "(bad)" }, | |
1538 | }, | |
1539 | /* GRP5 */ | |
1540 | { | |
1541 | { "incQ", Ev }, | |
1542 | { "decQ", Ev }, | |
1543 | { "callP", indirEv }, | |
1544 | { "callP", indirEv }, | |
1545 | { "jmpP", indirEv }, | |
1546 | { "ljmpP", indirEv }, | |
1547 | { "pushQ", Ev }, | |
1548 | { "(bad)" }, | |
1549 | }, | |
1550 | /* GRP6 */ | |
1551 | { | |
1552 | { "sldt", Ew }, | |
1553 | { "str", Ew }, | |
1554 | { "lldt", Ew }, | |
1555 | { "ltr", Ew }, | |
1556 | { "verr", Ew }, | |
1557 | { "verw", Ew }, | |
1558 | { "(bad)" }, | |
1559 | { "(bad)" } | |
1560 | }, | |
1561 | /* GRP7 */ | |
1562 | { | |
1563 | { "sgdt", Ew }, | |
1564 | { "sidt", Ew }, | |
1565 | { "lgdt", Ew }, | |
1566 | { "lidt", Ew }, | |
1567 | { "smsw", Ew }, | |
1568 | { "(bad)" }, | |
1569 | { "lmsw", Ew }, | |
1570 | { "invlpg", Ew }, | |
1571 | }, | |
1572 | /* GRP8 */ | |
1573 | { | |
1574 | { "(bad)" }, | |
1575 | { "(bad)" }, | |
1576 | { "(bad)" }, | |
1577 | { "(bad)" }, | |
1578 | { "btQ", Ev, Ib }, | |
1579 | { "btsQ", Ev, Ib }, | |
1580 | { "btrQ", Ev, Ib }, | |
1581 | { "btcQ", Ev, Ib }, | |
1582 | }, | |
1583 | /* GRP9 */ | |
1584 | { | |
1585 | { "(bad)" }, | |
1586 | { "cmpxchg8b", Ev }, | |
1587 | { "(bad)" }, | |
1588 | { "(bad)" }, | |
1589 | { "(bad)" }, | |
1590 | { "(bad)" }, | |
1591 | { "(bad)" }, | |
1592 | { "(bad)" }, | |
1593 | }, | |
1594 | /* GRP10 */ | |
1595 | { | |
1596 | { "(bad)" }, | |
1597 | { "(bad)" }, | |
1598 | { "psrlw", MS, Ib }, | |
1599 | { "(bad)" }, | |
1600 | { "psraw", MS, Ib }, | |
1601 | { "(bad)" }, | |
1602 | { "psllw", MS, Ib }, | |
1603 | { "(bad)" }, | |
1604 | }, | |
1605 | /* GRP11 */ | |
1606 | { | |
1607 | { "(bad)" }, | |
1608 | { "(bad)" }, | |
1609 | { "psrld", MS, Ib }, | |
1610 | { "(bad)" }, | |
1611 | { "psrad", MS, Ib }, | |
1612 | { "(bad)" }, | |
1613 | { "pslld", MS, Ib }, | |
1614 | { "(bad)" }, | |
1615 | }, | |
1616 | /* GRP12 */ | |
1617 | { | |
1618 | { "(bad)" }, | |
1619 | { "(bad)" }, | |
1620 | { "psrlq", MS, Ib }, | |
1621 | { "(bad)" }, | |
1622 | { "(bad)" }, | |
1623 | { "(bad)" }, | |
1624 | { "psllq", MS, Ib }, | |
1625 | { "(bad)" }, | |
1626 | }, | |
1627 | /* GRP13 */ | |
1628 | { | |
1629 | { "fxsave", Ev }, | |
1630 | { "fxrstor", Ev }, | |
1631 | { "(bad)" }, | |
1632 | { "(bad)" }, | |
1633 | { "(bad)" }, | |
1634 | { "(bad)" }, | |
1635 | { "(bad)" }, | |
1636 | { "(bad)" }, | |
1637 | }, | |
1638 | /* GRP14 */ | |
1639 | { | |
1640 | { "prefetch", Eb }, | |
1641 | { "prefetchw", Eb }, | |
1642 | { "(bad)" }, | |
1643 | { "(bad)" }, | |
1644 | { "(bad)" }, | |
1645 | { "(bad)" }, | |
1646 | { "(bad)" }, | |
1647 | { "(bad)" }, | |
1648 | } | |
1649 | ||
1650 | }; | |
1651 | ||
1652 | #define PREFIX_REPZ 1 | |
1653 | #define PREFIX_REPNZ 2 | |
1654 | #define PREFIX_LOCK 4 | |
1655 | #define PREFIX_CS 8 | |
1656 | #define PREFIX_SS 0x10 | |
1657 | #define PREFIX_DS 0x20 | |
1658 | #define PREFIX_ES 0x40 | |
1659 | #define PREFIX_FS 0x80 | |
1660 | #define PREFIX_GS 0x100 | |
1661 | #define PREFIX_DATA 0x200 | |
1662 | #define PREFIX_ADDR 0x400 | |
1663 | #define PREFIX_FWAIT 0x800 | |
1664 | ||
1665 | static int prefixes; | |
1666 | ||
1667 | static void | |
1668 | ckprefix () | |
1669 | { | |
1670 | prefixes = 0; | |
1671 | while (1) | |
1672 | { | |
1673 | FETCH_DATA (the_info, codep + 1); | |
1674 | switch (*codep) | |
1675 | { | |
1676 | case 0xf3: | |
1677 | prefixes |= PREFIX_REPZ; | |
1678 | break; | |
1679 | case 0xf2: | |
1680 | prefixes |= PREFIX_REPNZ; | |
1681 | break; | |
1682 | case 0xf0: | |
1683 | prefixes |= PREFIX_LOCK; | |
1684 | break; | |
1685 | case 0x2e: | |
1686 | prefixes |= PREFIX_CS; | |
1687 | break; | |
1688 | case 0x36: | |
1689 | prefixes |= PREFIX_SS; | |
1690 | break; | |
1691 | case 0x3e: | |
1692 | prefixes |= PREFIX_DS; | |
1693 | break; | |
1694 | case 0x26: | |
1695 | prefixes |= PREFIX_ES; | |
1696 | break; | |
1697 | case 0x64: | |
1698 | prefixes |= PREFIX_FS; | |
1699 | break; | |
1700 | case 0x65: | |
1701 | prefixes |= PREFIX_GS; | |
1702 | break; | |
1703 | case 0x66: | |
1704 | prefixes |= PREFIX_DATA; | |
1705 | break; | |
1706 | case 0x67: | |
1707 | prefixes |= PREFIX_ADDR; | |
1708 | break; | |
1709 | case 0x9b: | |
1710 | /* fwait is really an instruction. If there are prefixes | |
1711 | before the fwait, they belong to the fwait, *not* to the | |
1712 | following instruction. */ | |
1713 | if (prefixes) | |
1714 | { | |
1715 | prefixes |= PREFIX_FWAIT; | |
1716 | codep++; | |
1717 | return; | |
1718 | } | |
1719 | prefixes = PREFIX_FWAIT; | |
1720 | break; | |
1721 | default: | |
1722 | return; | |
1723 | } | |
1724 | codep++; | |
1725 | } | |
1726 | } | |
1727 | ||
1728 | static char op1out[100], op2out[100], op3out[100]; | |
1729 | static int op_ad, op_index[3]; | |
1730 | static unsigned int op_address[3]; | |
1731 | static unsigned int start_pc; | |
1732 | ||
1733 | \f | |
1734 | /* | |
1735 | * On the 386's of 1988, the maximum length of an instruction is 15 bytes. | |
1736 | * (see topic "Redundant prefixes" in the "Differences from 8086" | |
1737 | * section of the "Virtual 8086 Mode" chapter.) | |
1738 | * 'pc' should be the address of this instruction, it will | |
1739 | * be used to print the target address if this is a relative jump or call | |
1740 | * The function returns the length of this instruction in bytes. | |
1741 | */ | |
1742 | ||
1743 | static int print_insn_x86 | |
1744 | PARAMS ((bfd_vma pc, disassemble_info *info, int sizeflag)); | |
1745 | static int print_insn_i386 | |
1746 | PARAMS ((bfd_vma pc, disassemble_info *info)); | |
1747 | ||
1748 | static char intel_syntax; | |
1749 | static char open_char; | |
1750 | static char close_char; | |
1751 | static char separator_char; | |
1752 | static char scale_char; | |
1753 | ||
1754 | int | |
1755 | print_insn_i386_att (pc, info) | |
1756 | bfd_vma pc; | |
1757 | disassemble_info *info; | |
1758 | { | |
1759 | intel_syntax = 0; | |
1760 | open_char = '('; | |
1761 | close_char = ')'; | |
1762 | separator_char = ','; | |
1763 | scale_char = ','; | |
1764 | ||
1765 | return print_insn_i386 (pc, info); | |
1766 | } | |
1767 | ||
1768 | int | |
1769 | print_insn_i386_intel (pc, info) | |
1770 | bfd_vma pc; | |
1771 | disassemble_info *info; | |
1772 | { | |
1773 | intel_syntax = 1; | |
1774 | open_char = '['; | |
1775 | close_char = ']'; | |
1776 | separator_char = '+'; | |
1777 | scale_char = '*'; | |
1778 | ||
1779 | return print_insn_i386 (pc, info); | |
1780 | } | |
1781 | ||
1782 | static int | |
1783 | print_insn_i386 (pc, info) | |
1784 | bfd_vma pc; | |
1785 | disassemble_info *info; | |
1786 | { | |
1787 | int flags; | |
1788 | if (info->mach == bfd_mach_i386_i386 | |
1789 | || info->mach == bfd_mach_i386_i386_intel_syntax) | |
1790 | flags = AFLAG|DFLAG; | |
1791 | else if (info->mach == bfd_mach_i386_i8086) | |
1792 | flags = 0; | |
1793 | else | |
1794 | abort (); | |
1795 | return print_insn_x86 (pc, info, flags); | |
1796 | } | |
1797 | ||
1798 | static int | |
1799 | print_insn_x86 (pc, info, sizeflag) | |
1800 | bfd_vma pc; | |
1801 | disassemble_info *info; | |
1802 | int sizeflag; | |
1803 | { | |
1804 | struct dis386 *dp; | |
1805 | int i; | |
1806 | int two_source_ops; | |
1807 | char *first, *second, *third; | |
1808 | int needcomma; | |
1809 | unsigned char need_modrm; | |
1810 | ||
1811 | struct dis_private priv; | |
1812 | bfd_byte *inbuf = priv.the_buffer; | |
1813 | ||
1814 | /* The output looks better if we put 5 bytes on a line, since that | |
1815 | puts long word instructions on a single line. */ | |
1816 | info->bytes_per_line = 5; | |
1817 | ||
1818 | info->private_data = (PTR) &priv; | |
1819 | priv.max_fetched = priv.the_buffer; | |
1820 | priv.insn_start = pc; | |
1821 | if (setjmp (priv.bailout) != 0) | |
1822 | /* Error return. */ | |
1823 | return -1; | |
1824 | ||
1825 | obuf[0] = 0; | |
1826 | op1out[0] = 0; | |
1827 | op2out[0] = 0; | |
1828 | op3out[0] = 0; | |
1829 | ||
1830 | op_index[0] = op_index[1] = op_index[2] = -1; | |
1831 | ||
1832 | the_info = info; | |
1833 | start_pc = pc; | |
1834 | start_codep = inbuf; | |
1835 | codep = inbuf; | |
1836 | ||
1837 | ckprefix (); | |
1838 | ||
1839 | insn_codep = codep; | |
1840 | ||
1841 | FETCH_DATA (info, codep + 1); | |
1842 | two_source_ops = (*codep == 0x62) || (*codep == 0xc8); | |
1843 | ||
1844 | obufp = obuf; | |
1845 | ||
1846 | if ((prefixes & PREFIX_FWAIT) | |
1847 | && ((*codep < 0xd8) || (*codep > 0xdf))) | |
1848 | { | |
1849 | /* fwait not followed by floating point instruction. */ | |
1850 | (*info->fprintf_func) (info->stream, "fwait"); | |
1851 | /* There may be other prefixes. Skip any before the fwait. */ | |
1852 | return codep - inbuf; | |
1853 | } | |
1854 | ||
1855 | if (prefixes & PREFIX_REPZ) | |
1856 | oappend ("repz "); | |
1857 | if (prefixes & PREFIX_REPNZ) | |
1858 | oappend ("repnz "); | |
1859 | if (prefixes & PREFIX_LOCK) | |
1860 | oappend ("lock "); | |
1861 | ||
1862 | if (prefixes & PREFIX_DATA) | |
1863 | sizeflag ^= DFLAG; | |
1864 | ||
1865 | if (prefixes & PREFIX_ADDR) | |
1866 | { | |
1867 | sizeflag ^= AFLAG; | |
1868 | if (sizeflag & AFLAG) | |
1869 | oappend ("addr32 "); | |
1870 | else | |
1871 | oappend ("addr16 "); | |
1872 | } | |
1873 | ||
1874 | if (*codep == 0x0f) | |
1875 | { | |
1876 | FETCH_DATA (info, codep + 2); | |
1877 | if (intel_syntax) | |
1878 | dp = &dis386_twobyte_intel[*++codep]; | |
1879 | else | |
1880 | dp = &dis386_twobyte_att[*++codep]; | |
1881 | need_modrm = twobyte_has_modrm[*codep]; | |
1882 | } | |
1883 | else | |
1884 | { | |
1885 | if (intel_syntax) | |
1886 | dp = &dis386_intel[*codep]; | |
1887 | else | |
1888 | dp = &dis386_att[*codep]; | |
1889 | need_modrm = onebyte_has_modrm[*codep]; | |
1890 | } | |
1891 | codep++; | |
1892 | ||
1893 | if (need_modrm) | |
1894 | { | |
1895 | FETCH_DATA (info, codep + 1); | |
1896 | mod = (*codep >> 6) & 3; | |
1897 | reg = (*codep >> 3) & 7; | |
1898 | rm = *codep & 7; | |
1899 | } | |
1900 | ||
1901 | if (dp->name == NULL && dp->bytemode1 == FLOATCODE) | |
1902 | { | |
1903 | dofloat (sizeflag); | |
1904 | } | |
1905 | else | |
1906 | { | |
1907 | if (dp->name == NULL) | |
1908 | dp = &grps[dp->bytemode1][reg]; | |
1909 | ||
1910 | putop (dp->name, sizeflag); | |
1911 | ||
1912 | obufp = op1out; | |
1913 | op_ad = 2; | |
1914 | if (dp->op1) | |
1915 | (*dp->op1)(dp->bytemode1, sizeflag); | |
1916 | ||
1917 | obufp = op2out; | |
1918 | op_ad = 1; | |
1919 | if (dp->op2) | |
1920 | (*dp->op2)(dp->bytemode2, sizeflag); | |
1921 | ||
1922 | obufp = op3out; | |
1923 | op_ad = 0; | |
1924 | if (dp->op3) | |
1925 | (*dp->op3)(dp->bytemode3, sizeflag); | |
1926 | } | |
1927 | ||
1928 | obufp = obuf + strlen (obuf); | |
1929 | for (i = strlen (obuf); i < 6; i++) | |
1930 | oappend (" "); | |
1931 | oappend (" "); | |
1932 | (*info->fprintf_func) (info->stream, "%s", obuf); | |
1933 | ||
1934 | /* The enter and bound instructions are printed with operands in the same | |
1935 | order as the intel book; everything else is printed in reverse order. */ | |
1936 | if (intel_syntax || two_source_ops) | |
1937 | { | |
1938 | first = op1out; | |
1939 | second = op2out; | |
1940 | third = op3out; | |
1941 | op_ad = op_index[0]; | |
1942 | op_index[0] = op_index[2]; | |
1943 | op_index[2] = op_ad; | |
1944 | } | |
1945 | else | |
1946 | { | |
1947 | first = op3out; | |
1948 | second = op2out; | |
1949 | third = op1out; | |
1950 | } | |
1951 | needcomma = 0; | |
1952 | if (*first) | |
1953 | { | |
1954 | if (op_index[0] != -1) | |
1955 | (*info->print_address_func) ((bfd_vma) op_address[op_index[0]], info); | |
1956 | else | |
1957 | (*info->fprintf_func) (info->stream, "%s", first); | |
1958 | needcomma = 1; | |
1959 | } | |
1960 | if (*second) | |
1961 | { | |
1962 | if (needcomma) | |
1963 | (*info->fprintf_func) (info->stream, ","); | |
1964 | if (op_index[1] != -1) | |
1965 | (*info->print_address_func) ((bfd_vma) op_address[op_index[1]], info); | |
1966 | else | |
1967 | (*info->fprintf_func) (info->stream, "%s", second); | |
1968 | needcomma = 1; | |
1969 | } | |
1970 | if (*third) | |
1971 | { | |
1972 | if (needcomma) | |
1973 | (*info->fprintf_func) (info->stream, ","); | |
1974 | if (op_index[2] != -1) | |
1975 | (*info->print_address_func) ((bfd_vma) op_address[op_index[2]], info); | |
1976 | else | |
1977 | (*info->fprintf_func) (info->stream, "%s", third); | |
1978 | } | |
1979 | return codep - inbuf; | |
1980 | } | |
1981 | ||
1982 | static char *float_mem_att[] = { | |
1983 | /* d8 */ | |
1984 | "fadds", | |
1985 | "fmuls", | |
1986 | "fcoms", | |
1987 | "fcomps", | |
1988 | "fsubs", | |
1989 | "fsubrs", | |
1990 | "fdivs", | |
1991 | "fdivrs", | |
1992 | /* d9 */ | |
1993 | "flds", | |
1994 | "(bad)", | |
1995 | "fsts", | |
1996 | "fstps", | |
1997 | "fldenv", | |
1998 | "fldcw", | |
1999 | "fNstenv", | |
2000 | "fNstcw", | |
2001 | /* da */ | |
2002 | "fiaddl", | |
2003 | "fimull", | |
2004 | "ficoml", | |
2005 | "ficompl", | |
2006 | "fisubl", | |
2007 | "fisubrl", | |
2008 | "fidivl", | |
2009 | "fidivrl", | |
2010 | /* db */ | |
2011 | "fildl", | |
2012 | "(bad)", | |
2013 | "fistl", | |
2014 | "fistpl", | |
2015 | "(bad)", | |
2016 | "fldt", | |
2017 | "(bad)", | |
2018 | "fstpt", | |
2019 | /* dc */ | |
2020 | "faddl", | |
2021 | "fmull", | |
2022 | "fcoml", | |
2023 | "fcompl", | |
2024 | "fsubl", | |
2025 | "fsubrl", | |
2026 | "fdivl", | |
2027 | "fdivrl", | |
2028 | /* dd */ | |
2029 | "fldl", | |
2030 | "(bad)", | |
2031 | "fstl", | |
2032 | "fstpl", | |
2033 | "frstor", | |
2034 | "(bad)", | |
2035 | "fNsave", | |
2036 | "fNstsw", | |
2037 | /* de */ | |
2038 | "fiadd", | |
2039 | "fimul", | |
2040 | "ficom", | |
2041 | "ficomp", | |
2042 | "fisub", | |
2043 | "fisubr", | |
2044 | "fidiv", | |
2045 | "fidivr", | |
2046 | /* df */ | |
2047 | "fild", | |
2048 | "(bad)", | |
2049 | "fist", | |
2050 | "fistp", | |
2051 | "fbld", | |
2052 | "fildll", | |
2053 | "fbstp", | |
2054 | "fistpll", | |
2055 | }; | |
2056 | ||
2057 | static char *float_mem_intel[] = { | |
2058 | /* d8 */ | |
2059 | "fadd", | |
2060 | "fmul", | |
2061 | "fcom", | |
2062 | "fcomp", | |
2063 | "fsub", | |
2064 | "fsubr", | |
2065 | "fdiv", | |
2066 | "fdivr", | |
2067 | /* d9 */ | |
2068 | "fld", | |
2069 | "(bad)", | |
2070 | "fst", | |
2071 | "fstp", | |
2072 | "fldenv", | |
2073 | "fldcw", | |
2074 | "fNstenv", | |
2075 | "fNstcw", | |
2076 | /* da */ | |
2077 | "fiadd", | |
2078 | "fimul", | |
2079 | "ficom", | |
2080 | "ficomp", | |
2081 | "fisub", | |
2082 | "fisubr", | |
2083 | "fidiv", | |
2084 | "fidivr", | |
2085 | /* db */ | |
2086 | "fild", | |
2087 | "(bad)", | |
2088 | "fist", | |
2089 | "fistp", | |
2090 | "(bad)", | |
2091 | "fld", | |
2092 | "(bad)", | |
2093 | "fstp", | |
2094 | /* dc */ | |
2095 | "fadd", | |
2096 | "fmul", | |
2097 | "fcom", | |
2098 | "fcomp", | |
2099 | "fsub", | |
2100 | "fsubr", | |
2101 | "fdiv", | |
2102 | "fdivr", | |
2103 | /* dd */ | |
2104 | "fld", | |
2105 | "(bad)", | |
2106 | "fst", | |
2107 | "fstp", | |
2108 | "frstor", | |
2109 | "(bad)", | |
2110 | "fNsave", | |
2111 | "fNstsw", | |
2112 | /* de */ | |
2113 | "fiadd", | |
2114 | "fimul", | |
2115 | "ficom", | |
2116 | "ficomp", | |
2117 | "fisub", | |
2118 | "fisubr", | |
2119 | "fidiv", | |
2120 | "fidivr", | |
2121 | /* df */ | |
2122 | "fild", | |
2123 | "(bad)", | |
2124 | "fist", | |
2125 | "fistp", | |
2126 | "fbld", | |
2127 | "fild", | |
2128 | "fbstp", | |
2129 | "fistpll", | |
2130 | }; | |
2131 | ||
2132 | #define ST OP_ST, 0 | |
2133 | #define STi OP_STi, 0 | |
2134 | ||
2135 | #define FGRPd9_2 NULL, NULL, 0 | |
2136 | #define FGRPd9_4 NULL, NULL, 1 | |
2137 | #define FGRPd9_5 NULL, NULL, 2 | |
2138 | #define FGRPd9_6 NULL, NULL, 3 | |
2139 | #define FGRPd9_7 NULL, NULL, 4 | |
2140 | #define FGRPda_5 NULL, NULL, 5 | |
2141 | #define FGRPdb_4 NULL, NULL, 6 | |
2142 | #define FGRPde_3 NULL, NULL, 7 | |
2143 | #define FGRPdf_4 NULL, NULL, 8 | |
2144 | ||
2145 | static struct dis386 float_reg[][8] = { | |
2146 | /* d8 */ | |
2147 | { | |
2148 | { "fadd", ST, STi }, | |
2149 | { "fmul", ST, STi }, | |
2150 | { "fcom", STi }, | |
2151 | { "fcomp", STi }, | |
2152 | { "fsub", ST, STi }, | |
2153 | { "fsubr", ST, STi }, | |
2154 | { "fdiv", ST, STi }, | |
2155 | { "fdivr", ST, STi }, | |
2156 | }, | |
2157 | /* d9 */ | |
2158 | { | |
2159 | { "fld", STi }, | |
2160 | { "fxch", STi }, | |
2161 | { FGRPd9_2 }, | |
2162 | { "(bad)" }, | |
2163 | { FGRPd9_4 }, | |
2164 | { FGRPd9_5 }, | |
2165 | { FGRPd9_6 }, | |
2166 | { FGRPd9_7 }, | |
2167 | }, | |
2168 | /* da */ | |
2169 | { | |
2170 | { "fcmovb", ST, STi }, | |
2171 | { "fcmove", ST, STi }, | |
2172 | { "fcmovbe",ST, STi }, | |
2173 | { "fcmovu", ST, STi }, | |
2174 | { "(bad)" }, | |
2175 | { FGRPda_5 }, | |
2176 | { "(bad)" }, | |
2177 | { "(bad)" }, | |
2178 | }, | |
2179 | /* db */ | |
2180 | { | |
2181 | { "fcmovnb",ST, STi }, | |
2182 | { "fcmovne",ST, STi }, | |
2183 | { "fcmovnbe",ST, STi }, | |
2184 | { "fcmovnu",ST, STi }, | |
2185 | { FGRPdb_4 }, | |
2186 | { "fucomi", ST, STi }, | |
2187 | { "fcomi", ST, STi }, | |
2188 | { "(bad)" }, | |
2189 | }, | |
2190 | /* dc */ | |
2191 | { | |
2192 | { "fadd", STi, ST }, | |
2193 | { "fmul", STi, ST }, | |
2194 | { "(bad)" }, | |
2195 | { "(bad)" }, | |
2196 | #if UNIXWARE_COMPAT | |
2197 | { "fsub", STi, ST }, | |
2198 | { "fsubr", STi, ST }, | |
2199 | { "fdiv", STi, ST }, | |
2200 | { "fdivr", STi, ST }, | |
2201 | #else | |
2202 | { "fsubr", STi, ST }, | |
2203 | { "fsub", STi, ST }, | |
2204 | { "fdivr", STi, ST }, | |
2205 | { "fdiv", STi, ST }, | |
2206 | #endif | |
2207 | }, | |
2208 | /* dd */ | |
2209 | { | |
2210 | { "ffree", STi }, | |
2211 | { "(bad)" }, | |
2212 | { "fst", STi }, | |
2213 | { "fstp", STi }, | |
2214 | { "fucom", STi }, | |
2215 | { "fucomp", STi }, | |
2216 | { "(bad)" }, | |
2217 | { "(bad)" }, | |
2218 | }, | |
2219 | /* de */ | |
2220 | { | |
2221 | { "faddp", STi, ST }, | |
2222 | { "fmulp", STi, ST }, | |
2223 | { "(bad)" }, | |
2224 | { FGRPde_3 }, | |
2225 | #if UNIXWARE_COMPAT | |
2226 | { "fsubp", STi, ST }, | |
2227 | { "fsubrp", STi, ST }, | |
2228 | { "fdivp", STi, ST }, | |
2229 | { "fdivrp", STi, ST }, | |
2230 | #else | |
2231 | { "fsubrp", STi, ST }, | |
2232 | { "fsubp", STi, ST }, | |
2233 | { "fdivrp", STi, ST }, | |
2234 | { "fdivp", STi, ST }, | |
2235 | #endif | |
2236 | }, | |
2237 | /* df */ | |
2238 | { | |
2239 | { "(bad)" }, | |
2240 | { "(bad)" }, | |
2241 | { "(bad)" }, | |
2242 | { "(bad)" }, | |
2243 | { FGRPdf_4 }, | |
2244 | { "fucomip",ST, STi }, | |
2245 | { "fcomip", ST, STi }, | |
2246 | { "(bad)" }, | |
2247 | }, | |
2248 | }; | |
2249 | ||
2250 | ||
2251 | static char *fgrps[][8] = { | |
2252 | /* d9_2 0 */ | |
2253 | { | |
2254 | "fnop","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", | |
2255 | }, | |
2256 | ||
2257 | /* d9_4 1 */ | |
2258 | { | |
2259 | "fchs","fabs","(bad)","(bad)","ftst","fxam","(bad)","(bad)", | |
2260 | }, | |
2261 | ||
2262 | /* d9_5 2 */ | |
2263 | { | |
2264 | "fld1","fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz","(bad)", | |
2265 | }, | |
2266 | ||
2267 | /* d9_6 3 */ | |
2268 | { | |
2269 | "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp","fincstp", | |
2270 | }, | |
2271 | ||
2272 | /* d9_7 4 */ | |
2273 | { | |
2274 | "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos", | |
2275 | }, | |
2276 | ||
2277 | /* da_5 5 */ | |
2278 | { | |
2279 | "(bad)","fucompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", | |
2280 | }, | |
2281 | ||
2282 | /* db_4 6 */ | |
2283 | { | |
2284 | "feni(287 only)","fdisi(287 only)","fNclex","fNinit", | |
2285 | "fNsetpm(287 only)","(bad)","(bad)","(bad)", | |
2286 | }, | |
2287 | ||
2288 | /* de_3 7 */ | |
2289 | { | |
2290 | "(bad)","fcompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", | |
2291 | }, | |
2292 | ||
2293 | /* df_4 8 */ | |
2294 | { | |
2295 | "fNstsw","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", | |
2296 | }, | |
2297 | }; | |
2298 | ||
2299 | static void | |
2300 | dofloat (sizeflag) | |
2301 | int sizeflag; | |
2302 | { | |
2303 | struct dis386 *dp; | |
2304 | unsigned char floatop; | |
2305 | ||
2306 | floatop = codep[-1]; | |
2307 | ||
2308 | if (mod != 3) | |
2309 | { | |
2310 | if (intel_syntax) | |
2311 | putop (float_mem_intel[(floatop - 0xd8 ) * 8 + reg], sizeflag); | |
2312 | else | |
2313 | putop (float_mem_att[(floatop - 0xd8 ) * 8 + reg], sizeflag); | |
2314 | obufp = op1out; | |
2315 | if (floatop == 0xdb) | |
2316 | OP_E (x_mode, sizeflag); | |
2317 | else if (floatop == 0xdd) | |
2318 | OP_E (d_mode, sizeflag); | |
2319 | else | |
2320 | OP_E (v_mode, sizeflag); | |
2321 | return; | |
2322 | } | |
2323 | codep++; | |
2324 | ||
2325 | dp = &float_reg[floatop - 0xd8][reg]; | |
2326 | if (dp->name == NULL) | |
2327 | { | |
2328 | putop (fgrps[dp->bytemode1][rm], sizeflag); | |
2329 | ||
2330 | /* instruction fnstsw is only one with strange arg */ | |
2331 | if (floatop == 0xdf && codep[-1] == 0xe0) | |
2332 | strcpy (op1out, names16[0]); | |
2333 | } | |
2334 | else | |
2335 | { | |
2336 | putop (dp->name, sizeflag); | |
2337 | ||
2338 | obufp = op1out; | |
2339 | if (dp->op1) | |
2340 | (*dp->op1)(dp->bytemode1, sizeflag); | |
2341 | obufp = op2out; | |
2342 | if (dp->op2) | |
2343 | (*dp->op2)(dp->bytemode2, sizeflag); | |
2344 | } | |
2345 | } | |
2346 | ||
2347 | /* ARGSUSED */ | |
2348 | static void | |
2349 | OP_ST (ignore, sizeflag) | |
2350 | int ignore; | |
2351 | int sizeflag; | |
2352 | { | |
2353 | oappend ("%st"); | |
2354 | } | |
2355 | ||
2356 | /* ARGSUSED */ | |
2357 | static void | |
2358 | OP_STi (ignore, sizeflag) | |
2359 | int ignore; | |
2360 | int sizeflag; | |
2361 | { | |
2362 | sprintf (scratchbuf, "%%st(%d)", rm); | |
2363 | oappend (scratchbuf); | |
2364 | } | |
2365 | ||
2366 | ||
2367 | /* capital letters in template are macros */ | |
2368 | static void | |
2369 | putop (template, sizeflag) | |
2370 | char *template; | |
2371 | int sizeflag; | |
2372 | { | |
2373 | char *p; | |
2374 | ||
2375 | for (p = template; *p; p++) | |
2376 | { | |
2377 | switch (*p) | |
2378 | { | |
2379 | default: | |
2380 | *obufp++ = *p; | |
2381 | break; | |
2382 | case 'A': | |
2383 | if (intel_syntax) | |
2384 | break; | |
2385 | if (mod != 3 | |
2386 | #ifdef SUFFIX_ALWAYS | |
2387 | || (sizeflag & SUFFIX_ALWAYS) | |
2388 | #endif | |
2389 | ) | |
2390 | *obufp++ = 'b'; | |
2391 | break; | |
2392 | case 'B': | |
2393 | if (intel_syntax) | |
2394 | break; | |
2395 | #ifdef SUFFIX_ALWAYS | |
2396 | if (sizeflag & SUFFIX_ALWAYS) | |
2397 | *obufp++ = 'b'; | |
2398 | #endif | |
2399 | break; | |
2400 | case 'E': /* For jcxz/jecxz */ | |
2401 | if (sizeflag & AFLAG) | |
2402 | *obufp++ = 'e'; | |
2403 | break; | |
2404 | case 'L': | |
2405 | if (intel_syntax) | |
2406 | break; | |
2407 | #ifdef SUFFIX_ALWAYS | |
2408 | if (sizeflag & SUFFIX_ALWAYS) | |
2409 | *obufp++ = 'l'; | |
2410 | #endif | |
2411 | break; | |
2412 | case 'N': | |
2413 | if ((prefixes & PREFIX_FWAIT) == 0) | |
2414 | *obufp++ = 'n'; | |
2415 | break; | |
2416 | case 'P': | |
2417 | if (intel_syntax) | |
2418 | break; | |
2419 | if ((prefixes & PREFIX_DATA) | |
2420 | #ifdef SUFFIX_ALWAYS | |
2421 | || (sizeflag & SUFFIX_ALWAYS) | |
2422 | #endif | |
2423 | ) | |
2424 | { | |
2425 | if (sizeflag & DFLAG) | |
2426 | *obufp++ = 'l'; | |
2427 | else | |
2428 | *obufp++ = 'w'; | |
2429 | } | |
2430 | break; | |
2431 | case 'Q': | |
2432 | if (intel_syntax) | |
2433 | break; | |
2434 | if (mod != 3 | |
2435 | #ifdef SUFFIX_ALWAYS | |
2436 | || (sizeflag & SUFFIX_ALWAYS) | |
2437 | #endif | |
2438 | ) | |
2439 | { | |
2440 | if (sizeflag & DFLAG) | |
2441 | *obufp++ = 'l'; | |
2442 | else | |
2443 | *obufp++ = 'w'; | |
2444 | } | |
2445 | break; | |
2446 | case 'R': | |
2447 | if (intel_syntax) | |
2448 | break; | |
2449 | if (sizeflag & DFLAG) | |
2450 | *obufp++ = 'l'; | |
2451 | else | |
2452 | *obufp++ = 'w'; | |
2453 | break; | |
2454 | case 'S': | |
2455 | if (intel_syntax) | |
2456 | break; | |
2457 | #ifdef SUFFIX_ALWAYS | |
2458 | if (sizeflag & SUFFIX_ALWAYS) | |
2459 | { | |
2460 | if (sizeflag & DFLAG) | |
2461 | *obufp++ = 'l'; | |
2462 | else | |
2463 | *obufp++ = 'w'; | |
2464 | } | |
2465 | #endif | |
2466 | break; | |
2467 | case 'W': | |
2468 | if (intel_syntax) | |
2469 | break; | |
2470 | /* operand size flag for cwtl, cbtw */ | |
2471 | if (sizeflag & DFLAG) | |
2472 | *obufp++ = 'w'; | |
2473 | else | |
2474 | *obufp++ = 'b'; | |
2475 | break; | |
2476 | } | |
2477 | } | |
2478 | *obufp = 0; | |
2479 | } | |
2480 | ||
2481 | static void | |
2482 | oappend (s) | |
2483 | char *s; | |
2484 | { | |
2485 | strcpy (obufp, s); | |
2486 | obufp += strlen (s); | |
2487 | } | |
2488 | ||
2489 | static void | |
2490 | append_seg () | |
2491 | { | |
2492 | if (prefixes & PREFIX_CS) | |
2493 | oappend ("%cs:"); | |
2494 | if (prefixes & PREFIX_DS) | |
2495 | oappend ("%ds:"); | |
2496 | if (prefixes & PREFIX_SS) | |
2497 | oappend ("%ss:"); | |
2498 | if (prefixes & PREFIX_ES) | |
2499 | oappend ("%es:"); | |
2500 | if (prefixes & PREFIX_FS) | |
2501 | oappend ("%fs:"); | |
2502 | if (prefixes & PREFIX_GS) | |
2503 | oappend ("%gs:"); | |
2504 | } | |
2505 | ||
2506 | static void | |
2507 | OP_indirE (bytemode, sizeflag) | |
2508 | int bytemode; | |
2509 | int sizeflag; | |
2510 | { | |
2511 | if (!intel_syntax) | |
2512 | oappend ("*"); | |
2513 | OP_E (bytemode, sizeflag); | |
2514 | } | |
2515 | ||
2516 | static void | |
2517 | OP_E (bytemode, sizeflag) | |
2518 | int bytemode; | |
2519 | int sizeflag; | |
2520 | { | |
2521 | int disp; | |
2522 | ||
2523 | /* skip mod/rm byte */ | |
2524 | codep++; | |
2525 | ||
2526 | if (mod == 3) | |
2527 | { | |
2528 | switch (bytemode) | |
2529 | { | |
2530 | case b_mode: | |
2531 | oappend (names8[rm]); | |
2532 | break; | |
2533 | case w_mode: | |
2534 | oappend (names16[rm]); | |
2535 | break; | |
2536 | case v_mode: | |
2537 | if (sizeflag & DFLAG) | |
2538 | oappend (names32[rm]); | |
2539 | else | |
2540 | oappend (names16[rm]); | |
2541 | break; | |
2542 | default: | |
2543 | oappend ("<bad dis table>"); | |
2544 | break; | |
2545 | } | |
2546 | return; | |
2547 | } | |
2548 | ||
2549 | disp = 0; | |
2550 | append_seg (); | |
2551 | ||
2552 | if (sizeflag & AFLAG) /* 32 bit address mode */ | |
2553 | { | |
2554 | int havesib; | |
2555 | int havebase; | |
2556 | int base; | |
2557 | int index = 0; | |
2558 | int scale = 0; | |
2559 | ||
2560 | havesib = 0; | |
2561 | havebase = 1; | |
2562 | base = rm; | |
2563 | ||
2564 | if (base == 4) | |
2565 | { | |
2566 | havesib = 1; | |
2567 | FETCH_DATA (the_info, codep + 1); | |
2568 | scale = (*codep >> 6) & 3; | |
2569 | index = (*codep >> 3) & 7; | |
2570 | base = *codep & 7; | |
2571 | codep++; | |
2572 | } | |
2573 | ||
2574 | switch (mod) | |
2575 | { | |
2576 | case 0: | |
2577 | if (base == 5) | |
2578 | { | |
2579 | havebase = 0; | |
2580 | disp = get32 (); | |
2581 | } | |
2582 | break; | |
2583 | case 1: | |
2584 | FETCH_DATA (the_info, codep + 1); | |
2585 | disp = *codep++; | |
2586 | if ((disp & 0x80) != 0) | |
2587 | disp -= 0x100; | |
2588 | break; | |
2589 | case 2: | |
2590 | disp = get32 (); | |
2591 | break; | |
2592 | } | |
2593 | ||
2594 | if (!intel_syntax) | |
2595 | if (mod != 0 || base == 5) | |
2596 | { | |
2597 | sprintf (scratchbuf, "0x%x", disp); | |
2598 | oappend (scratchbuf); | |
2599 | } | |
2600 | ||
2601 | if (havebase || (havesib && (index != 4 || scale != 0))) | |
2602 | { | |
2603 | if (intel_syntax) | |
2604 | { | |
2605 | switch (bytemode) | |
2606 | { | |
2607 | case b_mode: | |
2608 | oappend("BYTE PTR "); | |
2609 | break; | |
2610 | case w_mode: | |
2611 | oappend("WORD PTR "); | |
2612 | break; | |
2613 | case v_mode: | |
2614 | oappend("DWORD PTR "); | |
2615 | break; | |
2616 | case d_mode: | |
2617 | oappend("QWORD PTR "); | |
2618 | break; | |
2619 | case x_mode: | |
2620 | oappend("XWORD PTR "); | |
2621 | break; | |
2622 | default: | |
2623 | break; | |
2624 | } | |
2625 | } | |
2626 | *obufp++ = open_char; | |
2627 | *obufp = '\0'; | |
2628 | if (havebase) | |
2629 | oappend (names32[base]); | |
2630 | if (havesib) | |
2631 | { | |
2632 | if (index != 4) | |
2633 | { | |
2634 | if (intel_syntax) | |
2635 | { | |
2636 | if (havebase) | |
2637 | { | |
2638 | *obufp++ = separator_char; | |
2639 | *obufp = '\0'; | |
2640 | } | |
2641 | sprintf (scratchbuf, "%s", names32[index]); | |
2642 | } | |
2643 | else | |
2644 | sprintf (scratchbuf, ",%s", names32[index]); | |
2645 | oappend (scratchbuf); | |
2646 | } | |
2647 | if (!intel_syntax | |
2648 | || (intel_syntax | |
2649 | && bytemode != b_mode | |
2650 | && bytemode != w_mode | |
2651 | && bytemode != v_mode)) | |
2652 | { | |
2653 | *obufp++ = scale_char; | |
2654 | *obufp = '\0'; | |
2655 | sprintf (scratchbuf, "%d", 1 << scale); | |
2656 | oappend (scratchbuf); | |
2657 | } | |
2658 | } | |
2659 | if (intel_syntax) | |
2660 | if (mod != 0 || base == 5) | |
2661 | { | |
2662 | /* Don't print zero displacements */ | |
2663 | if (disp > 0) | |
2664 | { | |
2665 | sprintf (scratchbuf, "+%d", disp); | |
2666 | oappend (scratchbuf); | |
2667 | } | |
2668 | else if (disp < 0) | |
2669 | { | |
2670 | sprintf (scratchbuf, "%d", disp); | |
2671 | oappend (scratchbuf); | |
2672 | } | |
2673 | } | |
2674 | ||
2675 | *obufp++ = close_char; | |
2676 | *obufp = '\0'; | |
2677 | } | |
2678 | else if (intel_syntax) | |
2679 | { | |
2680 | if (mod != 0 || base == 5) | |
2681 | { | |
2682 | if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS | |
2683 | | PREFIX_ES | PREFIX_FS | PREFIX_GS)) | |
2684 | ; | |
2685 | else | |
2686 | { | |
2687 | oappend (names_seg[3]); | |
2688 | oappend (":"); | |
2689 | } | |
2690 | sprintf (scratchbuf, "0x%x", disp); | |
2691 | oappend (scratchbuf); | |
2692 | } | |
2693 | } | |
2694 | } | |
2695 | else | |
2696 | { /* 16 bit address mode */ | |
2697 | switch (mod) | |
2698 | { | |
2699 | case 0: | |
2700 | if (rm == 6) | |
2701 | { | |
2702 | disp = get16 (); | |
2703 | if ((disp & 0x8000) != 0) | |
2704 | disp -= 0x10000; | |
2705 | } | |
2706 | break; | |
2707 | case 1: | |
2708 | FETCH_DATA (the_info, codep + 1); | |
2709 | disp = *codep++; | |
2710 | if ((disp & 0x80) != 0) | |
2711 | disp -= 0x100; | |
2712 | break; | |
2713 | case 2: | |
2714 | disp = get16 (); | |
2715 | if ((disp & 0x8000) != 0) | |
2716 | disp -= 0x10000; | |
2717 | break; | |
2718 | } | |
2719 | ||
2720 | if (!intel_syntax) | |
2721 | if (mod != 0 || rm == 6) | |
2722 | { | |
2723 | sprintf (scratchbuf, "%d", disp); | |
2724 | oappend (scratchbuf); | |
2725 | } | |
2726 | ||
2727 | if (mod != 0 || rm != 6) | |
2728 | { | |
2729 | *obufp++ = open_char; | |
2730 | *obufp = '\0'; | |
2731 | oappend (index16[rm]); | |
2732 | *obufp++ = close_char; | |
2733 | *obufp = '\0'; | |
2734 | } | |
2735 | } | |
2736 | } | |
2737 | ||
2738 | #define INTERNAL_DISASSEMBLER_ERROR _("<internal disassembler error>") | |
2739 | ||
2740 | static void | |
2741 | OP_G (bytemode, sizeflag) | |
2742 | int bytemode; | |
2743 | int sizeflag; | |
2744 | { | |
2745 | switch (bytemode) | |
2746 | { | |
2747 | case b_mode: | |
2748 | oappend (names8[reg]); | |
2749 | break; | |
2750 | case w_mode: | |
2751 | oappend (names16[reg]); | |
2752 | break; | |
2753 | case d_mode: | |
2754 | oappend (names32[reg]); | |
2755 | break; | |
2756 | case v_mode: | |
2757 | if (sizeflag & DFLAG) | |
2758 | oappend (names32[reg]); | |
2759 | else | |
2760 | oappend (names16[reg]); | |
2761 | break; | |
2762 | default: | |
2763 | oappend (INTERNAL_DISASSEMBLER_ERROR); | |
2764 | break; | |
2765 | } | |
2766 | } | |
2767 | ||
2768 | static int | |
2769 | get32 () | |
2770 | { | |
2771 | int x = 0; | |
2772 | ||
2773 | FETCH_DATA (the_info, codep + 4); | |
2774 | x = *codep++ & 0xff; | |
2775 | x |= (*codep++ & 0xff) << 8; | |
2776 | x |= (*codep++ & 0xff) << 16; | |
2777 | x |= (*codep++ & 0xff) << 24; | |
2778 | return x; | |
2779 | } | |
2780 | ||
2781 | static int | |
2782 | get16 () | |
2783 | { | |
2784 | int x = 0; | |
2785 | ||
2786 | FETCH_DATA (the_info, codep + 2); | |
2787 | x = *codep++ & 0xff; | |
2788 | x |= (*codep++ & 0xff) << 8; | |
2789 | return x; | |
2790 | } | |
2791 | ||
2792 | static void | |
2793 | set_op (op) | |
2794 | unsigned int op; | |
2795 | { | |
2796 | op_index[op_ad] = op_ad; | |
2797 | op_address[op_ad] = op; | |
2798 | } | |
2799 | ||
2800 | static void | |
2801 | OP_REG (code, sizeflag) | |
2802 | int code; | |
2803 | int sizeflag; | |
2804 | { | |
2805 | char *s; | |
2806 | ||
2807 | switch (code) | |
2808 | { | |
2809 | case indir_dx_reg: | |
2810 | s = "(%dx)"; | |
2811 | break; | |
2812 | case ax_reg: case cx_reg: case dx_reg: case bx_reg: | |
2813 | case sp_reg: case bp_reg: case si_reg: case di_reg: | |
2814 | s = names16[code - ax_reg]; | |
2815 | break; | |
2816 | case es_reg: case ss_reg: case cs_reg: | |
2817 | case ds_reg: case fs_reg: case gs_reg: | |
2818 | s = names_seg[code - es_reg]; | |
2819 | break; | |
2820 | case al_reg: case ah_reg: case cl_reg: case ch_reg: | |
2821 | case dl_reg: case dh_reg: case bl_reg: case bh_reg: | |
2822 | s = names8[code - al_reg]; | |
2823 | break; | |
2824 | case eAX_reg: case eCX_reg: case eDX_reg: case eBX_reg: | |
2825 | case eSP_reg: case eBP_reg: case eSI_reg: case eDI_reg: | |
2826 | if (sizeflag & DFLAG) | |
2827 | s = names32[code - eAX_reg]; | |
2828 | else | |
2829 | s = names16[code - eAX_reg]; | |
2830 | break; | |
2831 | default: | |
2832 | s = INTERNAL_DISASSEMBLER_ERROR; | |
2833 | break; | |
2834 | } | |
2835 | oappend (s); | |
2836 | } | |
2837 | ||
2838 | static void | |
2839 | OP_I (bytemode, sizeflag) | |
2840 | int bytemode; | |
2841 | int sizeflag; | |
2842 | { | |
2843 | int op; | |
2844 | ||
2845 | switch (bytemode) | |
2846 | { | |
2847 | case b_mode: | |
2848 | FETCH_DATA (the_info, codep + 1); | |
2849 | op = *codep++ & 0xff; | |
2850 | break; | |
2851 | case v_mode: | |
2852 | if (sizeflag & DFLAG) | |
2853 | op = get32 (); | |
2854 | else | |
2855 | op = get16 (); | |
2856 | break; | |
2857 | case w_mode: | |
2858 | op = get16 (); | |
2859 | break; | |
2860 | default: | |
2861 | oappend (INTERNAL_DISASSEMBLER_ERROR); | |
2862 | return; | |
2863 | } | |
2864 | ||
2865 | if (intel_syntax) | |
2866 | sprintf (scratchbuf, "0x%x", op); | |
2867 | else | |
2868 | sprintf (scratchbuf, "$0x%x", op); | |
2869 | oappend (scratchbuf); | |
2870 | scratchbuf[0] = '\0'; | |
2871 | } | |
2872 | ||
2873 | static void | |
2874 | OP_sI (bytemode, sizeflag) | |
2875 | int bytemode; | |
2876 | int sizeflag; | |
2877 | { | |
2878 | int op; | |
2879 | ||
2880 | switch (bytemode) | |
2881 | { | |
2882 | case b_mode: | |
2883 | FETCH_DATA (the_info, codep + 1); | |
2884 | op = *codep++; | |
2885 | if ((op & 0x80) != 0) | |
2886 | op -= 0x100; | |
2887 | break; | |
2888 | case v_mode: | |
2889 | if (sizeflag & DFLAG) | |
2890 | op = get32 (); | |
2891 | else | |
2892 | { | |
2893 | op = get16(); | |
2894 | if ((op & 0x8000) != 0) | |
2895 | op -= 0x10000; | |
2896 | } | |
2897 | break; | |
2898 | case w_mode: | |
2899 | op = get16 (); | |
2900 | if ((op & 0x8000) != 0) | |
2901 | op -= 0x10000; | |
2902 | break; | |
2903 | default: | |
2904 | oappend (INTERNAL_DISASSEMBLER_ERROR); | |
2905 | return; | |
2906 | } | |
2907 | if (intel_syntax) | |
2908 | sprintf (scratchbuf, "%d", op); | |
2909 | else | |
2910 | sprintf (scratchbuf, "$0x%x", op); | |
2911 | oappend (scratchbuf); | |
2912 | } | |
2913 | ||
2914 | static void | |
2915 | OP_J (bytemode, sizeflag) | |
2916 | int bytemode; | |
2917 | int sizeflag; | |
2918 | { | |
2919 | int disp; | |
2920 | int mask = -1; | |
2921 | ||
2922 | switch (bytemode) | |
2923 | { | |
2924 | case b_mode: | |
2925 | FETCH_DATA (the_info, codep + 1); | |
2926 | disp = *codep++; | |
2927 | if ((disp & 0x80) != 0) | |
2928 | disp -= 0x100; | |
2929 | break; | |
2930 | case v_mode: | |
2931 | if (sizeflag & DFLAG) | |
2932 | disp = get32 (); | |
2933 | else | |
2934 | { | |
2935 | disp = get16 (); | |
2936 | /* for some reason, a data16 prefix on a jump instruction | |
2937 | means that the pc is masked to 16 bits after the | |
2938 | displacement is added! */ | |
2939 | mask = 0xffff; | |
2940 | } | |
2941 | break; | |
2942 | default: | |
2943 | oappend (INTERNAL_DISASSEMBLER_ERROR); | |
2944 | return; | |
2945 | } | |
2946 | disp = (start_pc + codep - start_codep + disp) & mask; | |
2947 | set_op (disp); | |
2948 | sprintf (scratchbuf, "0x%x", disp); | |
2949 | oappend (scratchbuf); | |
2950 | } | |
2951 | ||
2952 | /* ARGSUSED */ | |
2953 | static void | |
2954 | OP_SEG (dummy, sizeflag) | |
2955 | int dummy; | |
2956 | int sizeflag; | |
2957 | { | |
2958 | static char *sreg[] = { | |
2959 | "%es","%cs","%ss","%ds","%fs","%gs","%?","%?", | |
2960 | }; | |
2961 | ||
2962 | oappend (sreg[reg]); | |
2963 | } | |
2964 | ||
2965 | static void | |
2966 | OP_DIR (size, sizeflag) | |
2967 | int size; | |
2968 | int sizeflag; | |
2969 | { | |
2970 | int seg, offset; | |
2971 | ||
2972 | switch (size) | |
2973 | { | |
2974 | case lptr: | |
2975 | if (sizeflag & DFLAG) | |
2976 | { | |
2977 | offset = get32 (); | |
2978 | seg = get16 (); | |
2979 | } | |
2980 | else | |
2981 | { | |
2982 | offset = get16 (); | |
2983 | seg = get16 (); | |
2984 | } | |
2985 | sprintf (scratchbuf, "$0x%x,$0x%x", seg, offset); | |
2986 | oappend (scratchbuf); | |
2987 | break; | |
2988 | case v_mode: | |
2989 | if (sizeflag & DFLAG) | |
2990 | offset = get32 (); | |
2991 | else | |
2992 | { | |
2993 | offset = get16 (); | |
2994 | if ((offset & 0x8000) != 0) | |
2995 | offset -= 0x10000; | |
2996 | } | |
2997 | ||
2998 | offset = start_pc + codep - start_codep + offset; | |
2999 | set_op (offset); | |
3000 | sprintf (scratchbuf, "0x%x", offset); | |
3001 | oappend (scratchbuf); | |
3002 | break; | |
3003 | default: | |
3004 | oappend (INTERNAL_DISASSEMBLER_ERROR); | |
3005 | break; | |
3006 | } | |
3007 | } | |
3008 | ||
3009 | /* ARGSUSED */ | |
3010 | static void | |
3011 | OP_OFF (ignore, sizeflag) | |
3012 | int ignore; | |
3013 | int sizeflag; | |
3014 | { | |
3015 | int off; | |
3016 | ||
3017 | append_seg (); | |
3018 | ||
3019 | if (sizeflag & AFLAG) | |
3020 | off = get32 (); | |
3021 | else | |
3022 | off = get16 (); | |
3023 | ||
3024 | if (intel_syntax) | |
3025 | { | |
3026 | if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS | |
3027 | | PREFIX_ES | PREFIX_FS | PREFIX_GS))) | |
3028 | { | |
3029 | oappend (names_seg[3]); | |
3030 | oappend (":"); | |
3031 | } | |
3032 | } | |
3033 | sprintf (scratchbuf, "0x%x", off); | |
3034 | oappend (scratchbuf); | |
3035 | } | |
3036 | ||
3037 | static void | |
3038 | ptr_reg (code, sizeflag) | |
3039 | int code; | |
3040 | int sizeflag; | |
3041 | { | |
3042 | char *s; | |
3043 | oappend ("("); | |
3044 | if (sizeflag & AFLAG) | |
3045 | s = names32[code - eAX_reg]; | |
3046 | else | |
3047 | s = names16[code - eAX_reg]; | |
3048 | oappend (s); | |
3049 | oappend (")"); | |
3050 | } | |
3051 | ||
3052 | static void | |
3053 | OP_ESreg (code, sizeflag) | |
3054 | int code; | |
3055 | int sizeflag; | |
3056 | { | |
3057 | oappend ("%es:"); | |
3058 | ptr_reg (code, sizeflag); | |
3059 | } | |
3060 | ||
3061 | static void | |
3062 | OP_DSreg (code, sizeflag) | |
3063 | int code; | |
3064 | int sizeflag; | |
3065 | { | |
3066 | if ((prefixes | |
3067 | & (PREFIX_CS | |
3068 | | PREFIX_DS | |
3069 | | PREFIX_SS | |
3070 | | PREFIX_ES | |
3071 | | PREFIX_FS | |
3072 | | PREFIX_GS)) == 0) | |
3073 | prefixes |= PREFIX_DS; | |
3074 | append_seg(); | |
3075 | ptr_reg (code, sizeflag); | |
3076 | } | |
3077 | ||
3078 | #if 0 | |
3079 | /* Not used. */ | |
3080 | ||
3081 | /* ARGSUSED */ | |
3082 | static void | |
3083 | OP_ONE (dummy, sizeflag) | |
3084 | int dummy; | |
3085 | int sizeflag; | |
3086 | { | |
3087 | oappend ("1"); | |
3088 | } | |
3089 | ||
3090 | #endif | |
3091 | ||
3092 | /* ARGSUSED */ | |
3093 | static void | |
3094 | OP_C (dummy, sizeflag) | |
3095 | int dummy; | |
3096 | int sizeflag; | |
3097 | { | |
3098 | codep++; /* skip mod/rm */ | |
3099 | sprintf (scratchbuf, "%%cr%d", reg); | |
3100 | oappend (scratchbuf); | |
3101 | } | |
3102 | ||
3103 | /* ARGSUSED */ | |
3104 | static void | |
3105 | OP_D (dummy, sizeflag) | |
3106 | int dummy; | |
3107 | int sizeflag; | |
3108 | { | |
3109 | codep++; /* skip mod/rm */ | |
3110 | sprintf (scratchbuf, "%%db%d", reg); | |
3111 | oappend (scratchbuf); | |
3112 | } | |
3113 | ||
3114 | /* ARGSUSED */ | |
3115 | static void | |
3116 | OP_T (dummy, sizeflag) | |
3117 | int dummy; | |
3118 | int sizeflag; | |
3119 | { | |
3120 | codep++; /* skip mod/rm */ | |
3121 | sprintf (scratchbuf, "%%tr%d", reg); | |
3122 | oappend (scratchbuf); | |
3123 | } | |
3124 | ||
3125 | static void | |
3126 | OP_rm (bytemode, sizeflag) | |
3127 | int bytemode; | |
3128 | int sizeflag; | |
3129 | { | |
3130 | switch (bytemode) | |
3131 | { | |
3132 | case d_mode: | |
3133 | oappend (names32[rm]); | |
3134 | break; | |
3135 | case w_mode: | |
3136 | oappend (names16[rm]); | |
3137 | break; | |
3138 | } | |
3139 | } | |
3140 | ||
3141 | static void | |
3142 | OP_MMX (ignore, sizeflag) | |
3143 | int ignore; | |
3144 | int sizeflag; | |
3145 | { | |
3146 | sprintf (scratchbuf, "%%mm%d", reg); | |
3147 | oappend (scratchbuf); | |
3148 | } | |
3149 | ||
3150 | static void | |
3151 | OP_EM (bytemode, sizeflag) | |
3152 | int bytemode; | |
3153 | int sizeflag; | |
3154 | { | |
3155 | if (mod != 3) | |
3156 | { | |
3157 | OP_E (bytemode, sizeflag); | |
3158 | return; | |
3159 | } | |
3160 | ||
3161 | codep++; | |
3162 | sprintf (scratchbuf, "%%mm%d", rm); | |
3163 | oappend (scratchbuf); | |
3164 | } | |
3165 | ||
3166 | static void | |
3167 | OP_MS (ignore, sizeflag) | |
3168 | int ignore; | |
3169 | int sizeflag; | |
3170 | { | |
3171 | ++codep; | |
3172 | sprintf (scratchbuf, "%%mm%d", rm); | |
3173 | oappend (scratchbuf); | |
3174 | } | |
3175 | ||
3176 | static const char *Suffix3DNow[] = { | |
3177 | /* 00 */ NULL, NULL, NULL, NULL, | |
3178 | /* 04 */ NULL, NULL, NULL, NULL, | |
3179 | /* 08 */ NULL, NULL, NULL, NULL, | |
3180 | /* 0C */ NULL, "pi2fd", NULL, NULL, | |
3181 | /* 10 */ NULL, NULL, NULL, NULL, | |
3182 | /* 14 */ NULL, NULL, NULL, NULL, | |
3183 | /* 18 */ NULL, NULL, NULL, NULL, | |
3184 | /* 1C */ NULL, "pf2id", NULL, NULL, | |
3185 | /* 20 */ NULL, NULL, NULL, NULL, | |
3186 | /* 24 */ NULL, NULL, NULL, NULL, | |
3187 | /* 28 */ NULL, NULL, NULL, NULL, | |
3188 | /* 2C */ NULL, NULL, NULL, NULL, | |
3189 | /* 30 */ NULL, NULL, NULL, NULL, | |
3190 | /* 34 */ NULL, NULL, NULL, NULL, | |
3191 | /* 38 */ NULL, NULL, NULL, NULL, | |
3192 | /* 3C */ NULL, NULL, NULL, NULL, | |
3193 | /* 40 */ NULL, NULL, NULL, NULL, | |
3194 | /* 44 */ NULL, NULL, NULL, NULL, | |
3195 | /* 48 */ NULL, NULL, NULL, NULL, | |
3196 | /* 4C */ NULL, NULL, NULL, NULL, | |
3197 | /* 50 */ NULL, NULL, NULL, NULL, | |
3198 | /* 54 */ NULL, NULL, NULL, NULL, | |
3199 | /* 58 */ NULL, NULL, NULL, NULL, | |
3200 | /* 5C */ NULL, NULL, NULL, NULL, | |
3201 | /* 60 */ NULL, NULL, NULL, NULL, | |
3202 | /* 64 */ NULL, NULL, NULL, NULL, | |
3203 | /* 68 */ NULL, NULL, NULL, NULL, | |
3204 | /* 6C */ NULL, NULL, NULL, NULL, | |
3205 | /* 70 */ NULL, NULL, NULL, NULL, | |
3206 | /* 74 */ NULL, NULL, NULL, NULL, | |
3207 | /* 78 */ NULL, NULL, NULL, NULL, | |
3208 | /* 7C */ NULL, NULL, NULL, NULL, | |
3209 | /* 80 */ NULL, NULL, NULL, NULL, | |
3210 | /* 84 */ NULL, NULL, NULL, NULL, | |
3211 | /* 88 */ NULL, NULL, NULL, NULL, | |
3212 | /* 8C */ NULL, NULL, NULL, NULL, | |
3213 | /* 90 */ "pfcmpge", NULL, NULL, NULL, | |
3214 | /* 94 */ "pfmin", NULL, "pfrcp", "pfrsqrt", | |
3215 | /* 98 */ NULL, NULL, "pfsub", NULL, | |
3216 | /* 9C */ NULL, NULL, "pfadd", NULL, | |
3217 | /* A0 */ "pfcmpgt", NULL, NULL, NULL, | |
3218 | /* A4 */ "pfmax", NULL, "pfrcpit1", "pfrsqit1", | |
3219 | /* A8 */ NULL, NULL, "pfsubr", NULL, | |
3220 | /* AC */ NULL, NULL, "pfacc", NULL, | |
3221 | /* B0 */ "pfcmpeq", NULL, NULL, NULL, | |
3222 | /* B4 */ "pfmul", NULL, "pfrcpit2", "pfmulhrw", | |
3223 | /* B8 */ NULL, NULL, NULL, NULL, | |
3224 | /* BC */ NULL, NULL, NULL, "pavgusb", | |
3225 | /* C0 */ NULL, NULL, NULL, NULL, | |
3226 | /* C4 */ NULL, NULL, NULL, NULL, | |
3227 | /* C8 */ NULL, NULL, NULL, NULL, | |
3228 | /* CC */ NULL, NULL, NULL, NULL, | |
3229 | /* D0 */ NULL, NULL, NULL, NULL, | |
3230 | /* D4 */ NULL, NULL, NULL, NULL, | |
3231 | /* D8 */ NULL, NULL, NULL, NULL, | |
3232 | /* DC */ NULL, NULL, NULL, NULL, | |
3233 | /* E0 */ NULL, NULL, NULL, NULL, | |
3234 | /* E4 */ NULL, NULL, NULL, NULL, | |
3235 | /* E8 */ NULL, NULL, NULL, NULL, | |
3236 | /* EC */ NULL, NULL, NULL, NULL, | |
3237 | /* F0 */ NULL, NULL, NULL, NULL, | |
3238 | /* F4 */ NULL, NULL, NULL, NULL, | |
3239 | /* F8 */ NULL, NULL, NULL, NULL, | |
3240 | /* FC */ NULL, NULL, NULL, NULL, | |
3241 | }; | |
3242 | ||
3243 | static void | |
3244 | OP_3DNowSuffix (bytemode, sizeflag) | |
3245 | int bytemode; | |
3246 | int sizeflag; | |
3247 | { | |
3248 | const char *mnemonic; | |
3249 | ||
3250 | FETCH_DATA (the_info, codep + 1); | |
3251 | /* AMD 3DNow! instructions are specified by an opcode suffix in the | |
3252 | place where an 8-bit immediate would normally go. ie. the last | |
3253 | byte of the instruction. */ | |
3254 | mnemonic = Suffix3DNow[*codep++]; | |
3255 | if (mnemonic) | |
3256 | strcat (obuf, mnemonic); | |
3257 | else | |
3258 | { | |
3259 | /* Since a variable sized modrm/sib chunk is between the start | |
3260 | of the opcode (0x0f0f) and the opcode suffix, we need to do | |
3261 | all the modrm processing first, and don't know until now that | |
3262 | we have a bad opcode. This necessitates some cleaning up. */ | |
3263 | op1out[0] = 0; | |
3264 | op2out[0] = 0; | |
3265 | codep = insn_codep + 1; | |
3266 | strcat (obuf, "(bad)"); | |
3267 | } | |
3268 | } |