Commit | Line | Data |
---|---|---|
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 | ||
252b5132 RH |
50 | static int fetch_data PARAMS ((struct disassemble_info *, bfd_byte *)); |
51 | ||
52 | struct dis_private | |
53 | { | |
54 | /* Points to first byte not fetched. */ | |
55 | bfd_byte *max_fetched; | |
56 | bfd_byte the_buffer[MAXLEN]; | |
57 | bfd_vma insn_start; | |
58 | jmp_buf bailout; | |
59 | }; | |
60 | ||
5076851f ILT |
61 | /* The opcode for the fwait instruction, which we treat as a prefix |
62 | when we can. */ | |
63 | #define FWAIT_OPCODE (0x9b) | |
64 | ||
65 | /* Flags for the prefixes for the current instruction. See below. */ | |
66 | static int prefixes; | |
67 | ||
7d421014 ILT |
68 | /* Flags for prefixes which we somehow handled when printing the |
69 | current instruction. */ | |
70 | static int used_prefixes; | |
71 | ||
5076851f ILT |
72 | /* Flags stored in PREFIXES. */ |
73 | #define PREFIX_REPZ 1 | |
74 | #define PREFIX_REPNZ 2 | |
75 | #define PREFIX_LOCK 4 | |
76 | #define PREFIX_CS 8 | |
77 | #define PREFIX_SS 0x10 | |
78 | #define PREFIX_DS 0x20 | |
79 | #define PREFIX_ES 0x40 | |
80 | #define PREFIX_FS 0x80 | |
81 | #define PREFIX_GS 0x100 | |
82 | #define PREFIX_DATA 0x200 | |
83 | #define PREFIX_ADDR 0x400 | |
84 | #define PREFIX_FWAIT 0x800 | |
85 | ||
252b5132 RH |
86 | /* Make sure that bytes from INFO->PRIVATE_DATA->BUFFER (inclusive) |
87 | to ADDR (exclusive) are valid. Returns 1 for success, longjmps | |
88 | on error. */ | |
89 | #define FETCH_DATA(info, addr) \ | |
90 | ((addr) <= ((struct dis_private *)(info->private_data))->max_fetched \ | |
91 | ? 1 : fetch_data ((info), (addr))) | |
92 | ||
93 | static int | |
94 | fetch_data (info, addr) | |
95 | struct disassemble_info *info; | |
96 | bfd_byte *addr; | |
97 | { | |
98 | int status; | |
99 | struct dis_private *priv = (struct dis_private *)info->private_data; | |
100 | bfd_vma start = priv->insn_start + (priv->max_fetched - priv->the_buffer); | |
101 | ||
102 | status = (*info->read_memory_func) (start, | |
103 | priv->max_fetched, | |
104 | addr - priv->max_fetched, | |
105 | info); | |
106 | if (status != 0) | |
107 | { | |
7d421014 ILT |
108 | /* If we did manage to read at least one byte, then |
109 | print_insn_i386 will do something sensible. Otherwise, print | |
110 | an error. We do that here because this is where we know | |
111 | STATUS. */ | |
112 | if (priv->max_fetched == priv->the_buffer) | |
5076851f | 113 | (*info->memory_error_func) (status, start, info); |
252b5132 RH |
114 | longjmp (priv->bailout, 1); |
115 | } | |
116 | else | |
117 | priv->max_fetched = addr; | |
118 | return 1; | |
119 | } | |
120 | ||
121 | #define Eb OP_E, b_mode | |
122 | #define indirEb OP_indirE, b_mode | |
123 | #define Gb OP_G, b_mode | |
124 | #define Ev OP_E, v_mode | |
2da11e11 | 125 | #define Ed OP_E, d_mode |
252b5132 RH |
126 | #define indirEv OP_indirE, v_mode |
127 | #define Ew OP_E, w_mode | |
128 | #define Ma OP_E, v_mode | |
2da11e11 AM |
129 | #define M OP_E, 0 /* lea */ |
130 | #define Mp OP_E, 0 /* 32 or 48 bit memory operand for LDS, LES etc */ | |
252b5132 RH |
131 | #define Gv OP_G, v_mode |
132 | #define Gw OP_G, w_mode | |
2da11e11 | 133 | #define Rd OP_Rd, d_mode |
252b5132 RH |
134 | #define Ib OP_I, b_mode |
135 | #define sIb OP_sI, b_mode /* sign extened byte */ | |
136 | #define Iv OP_I, v_mode | |
137 | #define Iw OP_I, w_mode | |
138 | #define Jb OP_J, b_mode | |
139 | #define Jv OP_J, v_mode | |
252b5132 RH |
140 | #define Cd OP_C, d_mode |
141 | #define Dd OP_D, d_mode | |
142 | #define Td OP_T, d_mode | |
143 | ||
144 | #define eAX OP_REG, eAX_reg | |
145 | #define eBX OP_REG, eBX_reg | |
146 | #define eCX OP_REG, eCX_reg | |
147 | #define eDX OP_REG, eDX_reg | |
148 | #define eSP OP_REG, eSP_reg | |
149 | #define eBP OP_REG, eBP_reg | |
150 | #define eSI OP_REG, eSI_reg | |
151 | #define eDI OP_REG, eDI_reg | |
152 | #define AL OP_REG, al_reg | |
153 | #define CL OP_REG, cl_reg | |
154 | #define DL OP_REG, dl_reg | |
155 | #define BL OP_REG, bl_reg | |
156 | #define AH OP_REG, ah_reg | |
157 | #define CH OP_REG, ch_reg | |
158 | #define DH OP_REG, dh_reg | |
159 | #define BH OP_REG, bh_reg | |
160 | #define AX OP_REG, ax_reg | |
161 | #define DX OP_REG, dx_reg | |
162 | #define indirDX OP_REG, indir_dx_reg | |
163 | ||
164 | #define Sw OP_SEG, w_mode | |
c608c12e | 165 | #define Ap OP_DIR, 0 |
252b5132 RH |
166 | #define Ob OP_OFF, b_mode |
167 | #define Ov OP_OFF, v_mode | |
168 | #define Xb OP_DSreg, eSI_reg | |
169 | #define Xv OP_DSreg, eSI_reg | |
170 | #define Yb OP_ESreg, eDI_reg | |
171 | #define Yv OP_ESreg, eDI_reg | |
172 | #define DSBX OP_DSreg, eBX_reg | |
173 | ||
174 | #define es OP_REG, es_reg | |
175 | #define ss OP_REG, ss_reg | |
176 | #define cs OP_REG, cs_reg | |
177 | #define ds OP_REG, ds_reg | |
178 | #define fs OP_REG, fs_reg | |
179 | #define gs OP_REG, gs_reg | |
180 | ||
181 | #define MX OP_MMX, 0 | |
c608c12e | 182 | #define XM OP_XMM, 0 |
252b5132 | 183 | #define EM OP_EM, v_mode |
c608c12e | 184 | #define EX OP_EX, v_mode |
2da11e11 | 185 | #define MS OP_MS, v_mode |
c608c12e | 186 | #define None OP_E, 0 |
252b5132 | 187 | #define OPSUF OP_3DNowSuffix, 0 |
c608c12e | 188 | #define OPSIMD OP_SIMD_Suffix, 0 |
252b5132 RH |
189 | |
190 | /* bits in sizeflag */ | |
191 | #if 0 /* leave undefined until someone adds the extra flag to objdump */ | |
192 | #define SUFFIX_ALWAYS 4 | |
193 | #endif | |
194 | #define AFLAG 2 | |
195 | #define DFLAG 1 | |
196 | ||
2da11e11 | 197 | typedef void (*op_rtn) PARAMS ((int bytemode, int sizeflag)); |
252b5132 RH |
198 | |
199 | static void OP_E PARAMS ((int, int)); | |
200 | static void OP_G PARAMS ((int, int)); | |
201 | static void OP_I PARAMS ((int, int)); | |
202 | static void OP_indirE PARAMS ((int, int)); | |
203 | static void OP_sI PARAMS ((int, int)); | |
204 | static void OP_REG PARAMS ((int, int)); | |
205 | static void OP_J PARAMS ((int, int)); | |
206 | static void OP_DIR PARAMS ((int, int)); | |
207 | static void OP_OFF PARAMS ((int, int)); | |
208 | static void OP_ESreg PARAMS ((int, int)); | |
209 | static void OP_DSreg PARAMS ((int, int)); | |
210 | static void OP_SEG PARAMS ((int, int)); | |
211 | static void OP_C PARAMS ((int, int)); | |
212 | static void OP_D PARAMS ((int, int)); | |
213 | static void OP_T PARAMS ((int, int)); | |
2da11e11 | 214 | static void OP_Rd PARAMS ((int, int)); |
252b5132 RH |
215 | static void OP_ST PARAMS ((int, int)); |
216 | static void OP_STi PARAMS ((int, int)); | |
252b5132 | 217 | static void OP_MMX PARAMS ((int, int)); |
c608c12e | 218 | static void OP_XMM PARAMS ((int, int)); |
252b5132 | 219 | static void OP_EM PARAMS ((int, int)); |
c608c12e | 220 | static void OP_EX PARAMS ((int, int)); |
252b5132 RH |
221 | static void OP_MS PARAMS ((int, int)); |
222 | static void OP_3DNowSuffix PARAMS ((int, int)); | |
c608c12e AM |
223 | static void OP_SIMD_Suffix PARAMS ((int, int)); |
224 | static void SIMD_Fixup PARAMS ((int, int)); | |
252b5132 RH |
225 | |
226 | static void append_seg PARAMS ((void)); | |
227 | static void set_op PARAMS ((unsigned int op)); | |
2da11e11 | 228 | static void putop PARAMS ((const char *template, int sizeflag)); |
252b5132 RH |
229 | static void dofloat PARAMS ((int sizeflag)); |
230 | static int get16 PARAMS ((void)); | |
231 | static int get32 PARAMS ((void)); | |
232 | static void ckprefix PARAMS ((void)); | |
7d421014 | 233 | static const char *prefix_name PARAMS ((int, int)); |
252b5132 | 234 | static void ptr_reg PARAMS ((int, int)); |
2da11e11 | 235 | static void BadOp PARAMS ((void)); |
252b5132 RH |
236 | |
237 | #define b_mode 1 | |
238 | #define v_mode 2 | |
239 | #define w_mode 3 | |
240 | #define d_mode 4 | |
241 | #define x_mode 5 | |
242 | ||
243 | #define es_reg 100 | |
244 | #define cs_reg 101 | |
245 | #define ss_reg 102 | |
246 | #define ds_reg 103 | |
247 | #define fs_reg 104 | |
248 | #define gs_reg 105 | |
252b5132 | 249 | |
c608c12e AM |
250 | #define eAX_reg 108 |
251 | #define eCX_reg 109 | |
252 | #define eDX_reg 110 | |
253 | #define eBX_reg 111 | |
254 | #define eSP_reg 112 | |
255 | #define eBP_reg 113 | |
256 | #define eSI_reg 114 | |
257 | #define eDI_reg 115 | |
252b5132 RH |
258 | |
259 | #define al_reg 116 | |
260 | #define cl_reg 117 | |
261 | #define dl_reg 118 | |
262 | #define bl_reg 119 | |
263 | #define ah_reg 120 | |
264 | #define ch_reg 121 | |
265 | #define dh_reg 122 | |
266 | #define bh_reg 123 | |
267 | ||
268 | #define ax_reg 124 | |
269 | #define cx_reg 125 | |
270 | #define dx_reg 126 | |
271 | #define bx_reg 127 | |
272 | #define sp_reg 128 | |
273 | #define bp_reg 129 | |
274 | #define si_reg 130 | |
275 | #define di_reg 131 | |
276 | ||
277 | #define indir_dx_reg 150 | |
278 | ||
c608c12e AM |
279 | #define USE_GROUPS 1 |
280 | #define USE_PREFIX_USER_TABLE 2 | |
281 | ||
282 | #define GRP1b NULL, NULL, 0, NULL, USE_GROUPS | |
283 | #define GRP1S NULL, NULL, 1, NULL, USE_GROUPS | |
284 | #define GRP1Ss NULL, NULL, 2, NULL, USE_GROUPS | |
285 | #define GRP2b NULL, NULL, 3, NULL, USE_GROUPS | |
286 | #define GRP2S NULL, NULL, 4, NULL, USE_GROUPS | |
287 | #define GRP2b_one NULL, NULL, 5, NULL, USE_GROUPS | |
288 | #define GRP2S_one NULL, NULL, 6, NULL, USE_GROUPS | |
289 | #define GRP2b_cl NULL, NULL, 7, NULL, USE_GROUPS | |
290 | #define GRP2S_cl NULL, NULL, 8, NULL, USE_GROUPS | |
291 | #define GRP3b NULL, NULL, 9, NULL, USE_GROUPS | |
292 | #define GRP3S NULL, NULL, 10, NULL, USE_GROUPS | |
293 | #define GRP4 NULL, NULL, 11, NULL, USE_GROUPS | |
294 | #define GRP5 NULL, NULL, 12, NULL, USE_GROUPS | |
295 | #define GRP6 NULL, NULL, 13, NULL, USE_GROUPS | |
296 | #define GRP7 NULL, NULL, 14, NULL, USE_GROUPS | |
297 | #define GRP8 NULL, NULL, 15, NULL, USE_GROUPS | |
298 | #define GRP9 NULL, NULL, 16, NULL, USE_GROUPS | |
299 | #define GRP10 NULL, NULL, 17, NULL, USE_GROUPS | |
300 | #define GRP11 NULL, NULL, 18, NULL, USE_GROUPS | |
301 | #define GRP12 NULL, NULL, 19, NULL, USE_GROUPS | |
302 | #define GRP13 NULL, NULL, 20, NULL, USE_GROUPS | |
303 | #define GRP14 NULL, NULL, 21, NULL, USE_GROUPS | |
304 | #define GRPAMD NULL, NULL, 22, NULL, USE_GROUPS | |
305 | ||
306 | #define PREGRP0 NULL, NULL, 0, NULL, USE_PREFIX_USER_TABLE | |
307 | #define PREGRP1 NULL, NULL, 1, NULL, USE_PREFIX_USER_TABLE | |
308 | #define PREGRP2 NULL, NULL, 2, NULL, USE_PREFIX_USER_TABLE | |
309 | #define PREGRP3 NULL, NULL, 3, NULL, USE_PREFIX_USER_TABLE | |
310 | #define PREGRP4 NULL, NULL, 4, NULL, USE_PREFIX_USER_TABLE | |
311 | #define PREGRP5 NULL, NULL, 5, NULL, USE_PREFIX_USER_TABLE | |
312 | #define PREGRP6 NULL, NULL, 6, NULL, USE_PREFIX_USER_TABLE | |
313 | #define PREGRP7 NULL, NULL, 7, NULL, USE_PREFIX_USER_TABLE | |
314 | #define PREGRP8 NULL, NULL, 8, NULL, USE_PREFIX_USER_TABLE | |
315 | #define PREGRP9 NULL, NULL, 9, NULL, USE_PREFIX_USER_TABLE | |
316 | #define PREGRP10 NULL, NULL, 10, NULL, USE_PREFIX_USER_TABLE | |
317 | #define PREGRP11 NULL, NULL, 11, NULL, USE_PREFIX_USER_TABLE | |
318 | #define PREGRP12 NULL, NULL, 12, NULL, USE_PREFIX_USER_TABLE | |
319 | #define PREGRP13 NULL, NULL, 13, NULL, USE_PREFIX_USER_TABLE | |
320 | #define PREGRP14 NULL, NULL, 14, NULL, USE_PREFIX_USER_TABLE | |
252b5132 RH |
321 | |
322 | #define FLOATCODE 50 | |
323 | #define FLOAT NULL, NULL, FLOATCODE | |
324 | ||
325 | struct dis386 { | |
2da11e11 | 326 | const char *name; |
252b5132 RH |
327 | op_rtn op1; |
328 | int bytemode1; | |
329 | op_rtn op2; | |
330 | int bytemode2; | |
331 | op_rtn op3; | |
332 | int bytemode3; | |
333 | }; | |
334 | ||
335 | /* Upper case letters in the instruction names here are macros. | |
336 | 'A' => print 'b' if no register operands or suffix_always is true | |
337 | 'B' => print 'b' if suffix_always is true | |
338 | 'E' => print 'e' if 32-bit form of jcxz | |
339 | 'L' => print 'l' if suffix_always is true | |
340 | 'N' => print 'n' if instruction has no wait "prefix" | |
341 | 'P' => print 'w' or 'l' if instruction has an operand size prefix, | |
342 | or suffix_always is true | |
343 | 'Q' => print 'w' or 'l' if no register operands or suffix_always is true | |
344 | 'R' => print 'w' or 'l' | |
345 | 'S' => print 'w' or 'l' if suffix_always is true | |
346 | 'W' => print 'b' or 'w' | |
347 | */ | |
348 | ||
2da11e11 | 349 | static const struct dis386 dis386_att[] = { |
252b5132 RH |
350 | /* 00 */ |
351 | { "addB", Eb, Gb }, | |
352 | { "addS", Ev, Gv }, | |
353 | { "addB", Gb, Eb }, | |
354 | { "addS", Gv, Ev }, | |
355 | { "addB", AL, Ib }, | |
356 | { "addS", eAX, Iv }, | |
357 | { "pushP", es }, | |
358 | { "popP", es }, | |
359 | /* 08 */ | |
360 | { "orB", Eb, Gb }, | |
361 | { "orS", Ev, Gv }, | |
362 | { "orB", Gb, Eb }, | |
363 | { "orS", Gv, Ev }, | |
364 | { "orB", AL, Ib }, | |
365 | { "orS", eAX, Iv }, | |
366 | { "pushP", cs }, | |
367 | { "(bad)" }, /* 0x0f extended opcode escape */ | |
368 | /* 10 */ | |
369 | { "adcB", Eb, Gb }, | |
370 | { "adcS", Ev, Gv }, | |
371 | { "adcB", Gb, Eb }, | |
372 | { "adcS", Gv, Ev }, | |
373 | { "adcB", AL, Ib }, | |
374 | { "adcS", eAX, Iv }, | |
375 | { "pushP", ss }, | |
376 | { "popP", ss }, | |
377 | /* 18 */ | |
378 | { "sbbB", Eb, Gb }, | |
379 | { "sbbS", Ev, Gv }, | |
380 | { "sbbB", Gb, Eb }, | |
381 | { "sbbS", Gv, Ev }, | |
382 | { "sbbB", AL, Ib }, | |
383 | { "sbbS", eAX, Iv }, | |
384 | { "pushP", ds }, | |
385 | { "popP", ds }, | |
386 | /* 20 */ | |
387 | { "andB", Eb, Gb }, | |
388 | { "andS", Ev, Gv }, | |
389 | { "andB", Gb, Eb }, | |
390 | { "andS", Gv, Ev }, | |
391 | { "andB", AL, Ib }, | |
392 | { "andS", eAX, Iv }, | |
393 | { "(bad)" }, /* SEG ES prefix */ | |
394 | { "daa" }, | |
395 | /* 28 */ | |
396 | { "subB", Eb, Gb }, | |
397 | { "subS", Ev, Gv }, | |
398 | { "subB", Gb, Eb }, | |
399 | { "subS", Gv, Ev }, | |
400 | { "subB", AL, Ib }, | |
401 | { "subS", eAX, Iv }, | |
402 | { "(bad)" }, /* SEG CS prefix */ | |
403 | { "das" }, | |
404 | /* 30 */ | |
405 | { "xorB", Eb, Gb }, | |
406 | { "xorS", Ev, Gv }, | |
407 | { "xorB", Gb, Eb }, | |
408 | { "xorS", Gv, Ev }, | |
409 | { "xorB", AL, Ib }, | |
410 | { "xorS", eAX, Iv }, | |
411 | { "(bad)" }, /* SEG SS prefix */ | |
412 | { "aaa" }, | |
413 | /* 38 */ | |
414 | { "cmpB", Eb, Gb }, | |
415 | { "cmpS", Ev, Gv }, | |
416 | { "cmpB", Gb, Eb }, | |
417 | { "cmpS", Gv, Ev }, | |
418 | { "cmpB", AL, Ib }, | |
419 | { "cmpS", eAX, Iv }, | |
420 | { "(bad)" }, /* SEG DS prefix */ | |
421 | { "aas" }, | |
422 | /* 40 */ | |
423 | { "incS", eAX }, | |
424 | { "incS", eCX }, | |
425 | { "incS", eDX }, | |
426 | { "incS", eBX }, | |
427 | { "incS", eSP }, | |
428 | { "incS", eBP }, | |
429 | { "incS", eSI }, | |
430 | { "incS", eDI }, | |
431 | /* 48 */ | |
432 | { "decS", eAX }, | |
433 | { "decS", eCX }, | |
434 | { "decS", eDX }, | |
435 | { "decS", eBX }, | |
436 | { "decS", eSP }, | |
437 | { "decS", eBP }, | |
438 | { "decS", eSI }, | |
439 | { "decS", eDI }, | |
440 | /* 50 */ | |
441 | { "pushS", eAX }, | |
442 | { "pushS", eCX }, | |
443 | { "pushS", eDX }, | |
444 | { "pushS", eBX }, | |
445 | { "pushS", eSP }, | |
446 | { "pushS", eBP }, | |
447 | { "pushS", eSI }, | |
448 | { "pushS", eDI }, | |
449 | /* 58 */ | |
450 | { "popS", eAX }, | |
451 | { "popS", eCX }, | |
452 | { "popS", eDX }, | |
453 | { "popS", eBX }, | |
454 | { "popS", eSP }, | |
455 | { "popS", eBP }, | |
456 | { "popS", eSI }, | |
457 | { "popS", eDI }, | |
458 | /* 60 */ | |
459 | { "pushaP" }, | |
460 | { "popaP" }, | |
461 | { "boundS", Gv, Ma }, | |
462 | { "arpl", Ew, Gw }, | |
463 | { "(bad)" }, /* seg fs */ | |
464 | { "(bad)" }, /* seg gs */ | |
465 | { "(bad)" }, /* op size prefix */ | |
466 | { "(bad)" }, /* adr size prefix */ | |
467 | /* 68 */ | |
468 | { "pushP", Iv }, /* 386 book wrong */ | |
469 | { "imulS", Gv, Ev, Iv }, | |
470 | { "pushP", sIb }, /* push of byte really pushes 2 or 4 bytes */ | |
471 | { "imulS", Gv, Ev, sIb }, | |
472 | { "insb", Yb, indirDX }, | |
473 | { "insR", Yv, indirDX }, | |
474 | { "outsb", indirDX, Xb }, | |
475 | { "outsR", indirDX, Xv }, | |
476 | /* 70 */ | |
477 | { "jo", Jb }, | |
478 | { "jno", Jb }, | |
479 | { "jb", Jb }, | |
480 | { "jae", Jb }, | |
481 | { "je", Jb }, | |
482 | { "jne", Jb }, | |
483 | { "jbe", Jb }, | |
484 | { "ja", Jb }, | |
485 | /* 78 */ | |
486 | { "js", Jb }, | |
487 | { "jns", Jb }, | |
488 | { "jp", Jb }, | |
489 | { "jnp", Jb }, | |
490 | { "jl", Jb }, | |
491 | { "jge", Jb }, | |
492 | { "jle", Jb }, | |
493 | { "jg", Jb }, | |
494 | /* 80 */ | |
495 | { GRP1b }, | |
496 | { GRP1S }, | |
497 | { "(bad)" }, | |
498 | { GRP1Ss }, | |
499 | { "testB", Eb, Gb }, | |
500 | { "testS", Ev, Gv }, | |
501 | { "xchgB", Eb, Gb }, | |
502 | { "xchgS", Ev, Gv }, | |
503 | /* 88 */ | |
504 | { "movB", Eb, Gb }, | |
505 | { "movS", Ev, Gv }, | |
506 | { "movB", Gb, Eb }, | |
507 | { "movS", Gv, Ev }, | |
508 | { "movQ", Ev, Sw }, | |
509 | { "leaS", Gv, M }, | |
510 | { "movQ", Sw, Ev }, | |
511 | { "popQ", Ev }, | |
512 | /* 90 */ | |
513 | { "nop" }, | |
514 | { "xchgS", eCX, eAX }, | |
515 | { "xchgS", eDX, eAX }, | |
516 | { "xchgS", eBX, eAX }, | |
517 | { "xchgS", eSP, eAX }, | |
518 | { "xchgS", eBP, eAX }, | |
519 | { "xchgS", eSI, eAX }, | |
520 | { "xchgS", eDI, eAX }, | |
521 | /* 98 */ | |
522 | { "cWtR" }, | |
523 | { "cRtd" }, | |
524 | { "lcallP", Ap }, | |
525 | { "(bad)" }, /* fwait */ | |
526 | { "pushfP" }, | |
527 | { "popfP" }, | |
528 | { "sahf" }, | |
529 | { "lahf" }, | |
530 | /* a0 */ | |
531 | { "movB", AL, Ob }, | |
532 | { "movS", eAX, Ov }, | |
533 | { "movB", Ob, AL }, | |
534 | { "movS", Ov, eAX }, | |
535 | { "movsb", Yb, Xb }, | |
536 | { "movsR", Yv, Xv }, | |
537 | { "cmpsb", Xb, Yb }, | |
538 | { "cmpsR", Xv, Yv }, | |
539 | /* a8 */ | |
540 | { "testB", AL, Ib }, | |
541 | { "testS", eAX, Iv }, | |
542 | { "stosB", Yb, AL }, | |
543 | { "stosS", Yv, eAX }, | |
544 | { "lodsB", AL, Xb }, | |
545 | { "lodsS", eAX, Xv }, | |
546 | { "scasB", AL, Yb }, | |
547 | { "scasS", eAX, Yv }, | |
548 | /* b0 */ | |
549 | { "movB", AL, Ib }, | |
550 | { "movB", CL, Ib }, | |
551 | { "movB", DL, Ib }, | |
552 | { "movB", BL, Ib }, | |
553 | { "movB", AH, Ib }, | |
554 | { "movB", CH, Ib }, | |
555 | { "movB", DH, Ib }, | |
556 | { "movB", BH, Ib }, | |
557 | /* b8 */ | |
558 | { "movS", eAX, Iv }, | |
559 | { "movS", eCX, Iv }, | |
560 | { "movS", eDX, Iv }, | |
561 | { "movS", eBX, Iv }, | |
562 | { "movS", eSP, Iv }, | |
563 | { "movS", eBP, Iv }, | |
564 | { "movS", eSI, Iv }, | |
565 | { "movS", eDI, Iv }, | |
566 | /* c0 */ | |
567 | { GRP2b }, | |
568 | { GRP2S }, | |
569 | { "retP", Iw }, | |
570 | { "retP" }, | |
571 | { "lesS", Gv, Mp }, | |
572 | { "ldsS", Gv, Mp }, | |
573 | { "movA", Eb, Ib }, | |
574 | { "movQ", Ev, Iv }, | |
575 | /* c8 */ | |
576 | { "enterP", Iw, Ib }, | |
577 | { "leaveP" }, | |
578 | { "lretP", Iw }, | |
579 | { "lretP" }, | |
580 | { "int3" }, | |
581 | { "int", Ib }, | |
582 | { "into" }, | |
583 | { "iretP" }, | |
584 | /* d0 */ | |
585 | { GRP2b_one }, | |
586 | { GRP2S_one }, | |
587 | { GRP2b_cl }, | |
588 | { GRP2S_cl }, | |
589 | { "aam", sIb }, | |
590 | { "aad", sIb }, | |
591 | { "(bad)" }, | |
592 | { "xlat", DSBX }, | |
593 | /* d8 */ | |
594 | { FLOAT }, | |
595 | { FLOAT }, | |
596 | { FLOAT }, | |
597 | { FLOAT }, | |
598 | { FLOAT }, | |
599 | { FLOAT }, | |
600 | { FLOAT }, | |
601 | { FLOAT }, | |
602 | /* e0 */ | |
603 | { "loopne", Jb }, | |
604 | { "loope", Jb }, | |
605 | { "loop", Jb }, | |
606 | { "jEcxz", Jb }, | |
607 | { "inB", AL, Ib }, | |
608 | { "inS", eAX, Ib }, | |
609 | { "outB", Ib, AL }, | |
610 | { "outS", Ib, eAX }, | |
611 | /* e8 */ | |
c608c12e | 612 | { "callP", Jv }, |
252b5132 RH |
613 | { "jmpP", Jv }, |
614 | { "ljmpP", Ap }, | |
615 | { "jmp", Jb }, | |
616 | { "inB", AL, indirDX }, | |
617 | { "inS", eAX, indirDX }, | |
618 | { "outB", indirDX, AL }, | |
619 | { "outS", indirDX, eAX }, | |
620 | /* f0 */ | |
621 | { "(bad)" }, /* lock prefix */ | |
622 | { "(bad)" }, | |
623 | { "(bad)" }, /* repne */ | |
624 | { "(bad)" }, /* repz */ | |
625 | { "hlt" }, | |
626 | { "cmc" }, | |
627 | { GRP3b }, | |
628 | { GRP3S }, | |
629 | /* f8 */ | |
630 | { "clc" }, | |
631 | { "stc" }, | |
632 | { "cli" }, | |
633 | { "sti" }, | |
634 | { "cld" }, | |
635 | { "std" }, | |
636 | { GRP4 }, | |
637 | { GRP5 }, | |
638 | }; | |
639 | ||
2da11e11 | 640 | static const struct dis386 dis386_intel[] = { |
252b5132 | 641 | /* 00 */ |
c608c12e AM |
642 | { "add", Eb, Gb }, |
643 | { "add", Ev, Gv }, | |
644 | { "add", Gb, Eb }, | |
645 | { "add", Gv, Ev }, | |
646 | { "add", AL, Ib }, | |
647 | { "add", eAX, Iv }, | |
648 | { "push", es }, | |
649 | { "pop", es }, | |
252b5132 | 650 | /* 08 */ |
c608c12e AM |
651 | { "or", Eb, Gb }, |
652 | { "or", Ev, Gv }, | |
653 | { "or", Gb, Eb }, | |
654 | { "or", Gv, Ev }, | |
655 | { "or", AL, Ib }, | |
656 | { "or", eAX, Iv }, | |
657 | { "push", cs }, | |
252b5132 RH |
658 | { "(bad)" }, /* 0x0f extended opcode escape */ |
659 | /* 10 */ | |
c608c12e AM |
660 | { "adc", Eb, Gb }, |
661 | { "adc", Ev, Gv }, | |
662 | { "adc", Gb, Eb }, | |
663 | { "adc", Gv, Ev }, | |
664 | { "adc", AL, Ib }, | |
665 | { "adc", eAX, Iv }, | |
666 | { "push", ss }, | |
667 | { "pop", ss }, | |
252b5132 | 668 | /* 18 */ |
c608c12e AM |
669 | { "sbb", Eb, Gb }, |
670 | { "sbb", Ev, Gv }, | |
671 | { "sbb", Gb, Eb }, | |
672 | { "sbb", Gv, Ev }, | |
673 | { "sbb", AL, Ib }, | |
674 | { "sbb", eAX, Iv }, | |
675 | { "push", ds }, | |
676 | { "pop", ds }, | |
252b5132 | 677 | /* 20 */ |
c608c12e AM |
678 | { "and", Eb, Gb }, |
679 | { "and", Ev, Gv }, | |
680 | { "and", Gb, Eb }, | |
681 | { "and", Gv, Ev }, | |
682 | { "and", AL, Ib }, | |
683 | { "and", eAX, Iv }, | |
252b5132 RH |
684 | { "(bad)" }, /* SEG ES prefix */ |
685 | { "daa" }, | |
686 | /* 28 */ | |
c608c12e AM |
687 | { "sub", Eb, Gb }, |
688 | { "sub", Ev, Gv }, | |
689 | { "sub", Gb, Eb }, | |
690 | { "sub", Gv, Ev }, | |
691 | { "sub", AL, Ib }, | |
692 | { "sub", eAX, Iv }, | |
252b5132 RH |
693 | { "(bad)" }, /* SEG CS prefix */ |
694 | { "das" }, | |
695 | /* 30 */ | |
c608c12e AM |
696 | { "xor", Eb, Gb }, |
697 | { "xor", Ev, Gv }, | |
698 | { "xor", Gb, Eb }, | |
699 | { "xor", Gv, Ev }, | |
700 | { "xor", AL, Ib }, | |
701 | { "xor", eAX, Iv }, | |
252b5132 RH |
702 | { "(bad)" }, /* SEG SS prefix */ |
703 | { "aaa" }, | |
704 | /* 38 */ | |
c608c12e AM |
705 | { "cmp", Eb, Gb }, |
706 | { "cmp", Ev, Gv }, | |
707 | { "cmp", Gb, Eb }, | |
708 | { "cmp", Gv, Ev }, | |
709 | { "cmp", AL, Ib }, | |
710 | { "cmp", eAX, Iv }, | |
252b5132 RH |
711 | { "(bad)" }, /* SEG DS prefix */ |
712 | { "aas" }, | |
713 | /* 40 */ | |
c608c12e AM |
714 | { "inc", eAX }, |
715 | { "inc", eCX }, | |
716 | { "inc", eDX }, | |
717 | { "inc", eBX }, | |
718 | { "inc", eSP }, | |
719 | { "inc", eBP }, | |
720 | { "inc", eSI }, | |
721 | { "inc", eDI }, | |
252b5132 | 722 | /* 48 */ |
c608c12e AM |
723 | { "dec", eAX }, |
724 | { "dec", eCX }, | |
725 | { "dec", eDX }, | |
726 | { "dec", eBX }, | |
727 | { "dec", eSP }, | |
728 | { "dec", eBP }, | |
729 | { "dec", eSI }, | |
730 | { "dec", eDI }, | |
252b5132 | 731 | /* 50 */ |
c608c12e AM |
732 | { "push", eAX }, |
733 | { "push", eCX }, | |
734 | { "push", eDX }, | |
735 | { "push", eBX }, | |
736 | { "push", eSP }, | |
737 | { "push", eBP }, | |
738 | { "push", eSI }, | |
739 | { "push", eDI }, | |
252b5132 | 740 | /* 58 */ |
c608c12e AM |
741 | { "pop", eAX }, |
742 | { "pop", eCX }, | |
743 | { "pop", eDX }, | |
744 | { "pop", eBX }, | |
745 | { "pop", eSP }, | |
746 | { "pop", eBP }, | |
747 | { "pop", eSI }, | |
748 | { "pop", eDI }, | |
252b5132 | 749 | /* 60 */ |
c608c12e AM |
750 | { "pusha" }, |
751 | { "popa" }, | |
752 | { "bound", Gv, Ma }, | |
252b5132 RH |
753 | { "arpl", Ew, Gw }, |
754 | { "(bad)" }, /* seg fs */ | |
755 | { "(bad)" }, /* seg gs */ | |
756 | { "(bad)" }, /* op size prefix */ | |
757 | { "(bad)" }, /* adr size prefix */ | |
758 | /* 68 */ | |
c608c12e AM |
759 | { "push", Iv }, /* 386 book wrong */ |
760 | { "imul", Gv, Ev, Iv }, | |
761 | { "push", sIb }, /* push of byte really pushes 2 or 4 bytes */ | |
762 | { "imul", Gv, Ev, sIb }, | |
763 | { "ins", Yb, indirDX }, | |
764 | { "ins", Yv, indirDX }, | |
765 | { "outs", indirDX, Xb }, | |
766 | { "outs", indirDX, Xv }, | |
252b5132 RH |
767 | /* 70 */ |
768 | { "jo", Jb }, | |
769 | { "jno", Jb }, | |
770 | { "jb", Jb }, | |
771 | { "jae", Jb }, | |
772 | { "je", Jb }, | |
773 | { "jne", Jb }, | |
774 | { "jbe", Jb }, | |
775 | { "ja", Jb }, | |
776 | /* 78 */ | |
777 | { "js", Jb }, | |
778 | { "jns", Jb }, | |
779 | { "jp", Jb }, | |
780 | { "jnp", Jb }, | |
781 | { "jl", Jb }, | |
782 | { "jge", Jb }, | |
783 | { "jle", Jb }, | |
784 | { "jg", Jb }, | |
785 | /* 80 */ | |
786 | { GRP1b }, | |
787 | { GRP1S }, | |
788 | { "(bad)" }, | |
789 | { GRP1Ss }, | |
c608c12e AM |
790 | { "test", Eb, Gb }, |
791 | { "test", Ev, Gv }, | |
792 | { "xchg", Eb, Gb }, | |
793 | { "xchg", Ev, Gv }, | |
252b5132 | 794 | /* 88 */ |
c608c12e AM |
795 | { "mov", Eb, Gb }, |
796 | { "mov", Ev, Gv }, | |
797 | { "mov", Gb, Eb }, | |
798 | { "mov", Gv, Ev }, | |
799 | { "mov", Ev, Sw }, | |
800 | { "lea", Gv, M }, | |
801 | { "mov", Sw, Ev }, | |
802 | { "pop", Ev }, | |
252b5132 RH |
803 | /* 90 */ |
804 | { "nop" }, | |
c608c12e AM |
805 | { "xchg", eCX, eAX }, |
806 | { "xchg", eDX, eAX }, | |
807 | { "xchg", eBX, eAX }, | |
808 | { "xchg", eSP, eAX }, | |
809 | { "xchg", eBP, eAX }, | |
810 | { "xchg", eSI, eAX }, | |
811 | { "xchg", eDI, eAX }, | |
252b5132 | 812 | /* 98 */ |
c608c12e AM |
813 | { "cW" }, /* cwde and cbw */ |
814 | { "cR" }, /* cdq and cwd */ | |
815 | { "lcall", Ap }, | |
252b5132 | 816 | { "(bad)" }, /* fwait */ |
c608c12e AM |
817 | { "pushf" }, |
818 | { "popf" }, | |
252b5132 RH |
819 | { "sahf" }, |
820 | { "lahf" }, | |
821 | /* a0 */ | |
c608c12e AM |
822 | { "mov", AL, Ob }, |
823 | { "mov", eAX, Ov }, | |
824 | { "mov", Ob, AL }, | |
825 | { "mov", Ov, eAX }, | |
826 | { "movs", Yb, Xb }, | |
827 | { "movs", Yv, Xv }, | |
828 | { "cmps", Xb, Yb }, | |
829 | { "cmps", Xv, Yv }, | |
252b5132 | 830 | /* a8 */ |
c608c12e AM |
831 | { "test", AL, Ib }, |
832 | { "test", eAX, Iv }, | |
833 | { "stos", Yb, AL }, | |
834 | { "stos", Yv, eAX }, | |
835 | { "lods", AL, Xb }, | |
836 | { "lods", eAX, Xv }, | |
837 | { "scas", AL, Yb }, | |
838 | { "scas", eAX, Yv }, | |
252b5132 | 839 | /* b0 */ |
c608c12e AM |
840 | { "mov", AL, Ib }, |
841 | { "mov", CL, Ib }, | |
842 | { "mov", DL, Ib }, | |
843 | { "mov", BL, Ib }, | |
844 | { "mov", AH, Ib }, | |
845 | { "mov", CH, Ib }, | |
846 | { "mov", DH, Ib }, | |
847 | { "mov", BH, Ib }, | |
252b5132 | 848 | /* b8 */ |
c608c12e AM |
849 | { "mov", eAX, Iv }, |
850 | { "mov", eCX, Iv }, | |
851 | { "mov", eDX, Iv }, | |
852 | { "mov", eBX, Iv }, | |
853 | { "mov", eSP, Iv }, | |
854 | { "mov", eBP, Iv }, | |
855 | { "mov", eSI, Iv }, | |
856 | { "mov", eDI, Iv }, | |
252b5132 RH |
857 | /* c0 */ |
858 | { GRP2b }, | |
859 | { GRP2S }, | |
c608c12e AM |
860 | { "ret", Iw }, |
861 | { "ret" }, | |
862 | { "les", Gv, Mp }, | |
863 | { "lds", Gv, Mp }, | |
864 | { "mov", Eb, Ib }, | |
865 | { "mov", Ev, Iv }, | |
252b5132 | 866 | /* c8 */ |
c608c12e AM |
867 | { "enter", Iw, Ib }, |
868 | { "leave" }, | |
869 | { "lret", Iw }, | |
870 | { "lret" }, | |
252b5132 RH |
871 | { "int3" }, |
872 | { "int", Ib }, | |
873 | { "into" }, | |
c608c12e | 874 | { "iret" }, |
252b5132 RH |
875 | /* d0 */ |
876 | { GRP2b_one }, | |
877 | { GRP2S_one }, | |
878 | { GRP2b_cl }, | |
879 | { GRP2S_cl }, | |
880 | { "aam", sIb }, | |
881 | { "aad", sIb }, | |
882 | { "(bad)" }, | |
883 | { "xlat", DSBX }, | |
884 | /* d8 */ | |
885 | { FLOAT }, | |
886 | { FLOAT }, | |
887 | { FLOAT }, | |
888 | { FLOAT }, | |
889 | { FLOAT }, | |
890 | { FLOAT }, | |
891 | { FLOAT }, | |
892 | { FLOAT }, | |
893 | /* e0 */ | |
894 | { "loopne", Jb }, | |
895 | { "loope", Jb }, | |
896 | { "loop", Jb }, | |
897 | { "jEcxz", Jb }, | |
c608c12e AM |
898 | { "in", AL, Ib }, |
899 | { "in", eAX, Ib }, | |
900 | { "out", Ib, AL }, | |
901 | { "out", Ib, eAX }, | |
252b5132 | 902 | /* e8 */ |
c608c12e AM |
903 | { "call", Jv }, |
904 | { "jmp", Jv }, | |
905 | { "ljmp", Ap }, | |
252b5132 | 906 | { "jmp", Jb }, |
c608c12e AM |
907 | { "in", AL, indirDX }, |
908 | { "in", eAX, indirDX }, | |
909 | { "out", indirDX, AL }, | |
910 | { "out", indirDX, eAX }, | |
252b5132 RH |
911 | /* f0 */ |
912 | { "(bad)" }, /* lock prefix */ | |
913 | { "(bad)" }, | |
914 | { "(bad)" }, /* repne */ | |
915 | { "(bad)" }, /* repz */ | |
916 | { "hlt" }, | |
917 | { "cmc" }, | |
918 | { GRP3b }, | |
919 | { GRP3S }, | |
920 | /* f8 */ | |
921 | { "clc" }, | |
922 | { "stc" }, | |
923 | { "cli" }, | |
924 | { "sti" }, | |
925 | { "cld" }, | |
926 | { "std" }, | |
927 | { GRP4 }, | |
928 | { GRP5 }, | |
929 | }; | |
930 | ||
2da11e11 | 931 | static const struct dis386 dis386_twobyte_att[] = { |
252b5132 RH |
932 | /* 00 */ |
933 | { GRP6 }, | |
934 | { GRP7 }, | |
935 | { "larS", Gv, Ew }, | |
936 | { "lslS", Gv, Ew }, | |
937 | { "(bad)" }, | |
938 | { "(bad)" }, | |
939 | { "clts" }, | |
940 | { "(bad)" }, | |
941 | /* 08 */ | |
942 | { "invd" }, | |
943 | { "wbinvd" }, | |
944 | { "(bad)" }, | |
945 | { "ud2a" }, | |
946 | { "(bad)" }, | |
c608c12e | 947 | { GRPAMD }, |
252b5132 RH |
948 | { "femms" }, |
949 | { "", MX, EM, OPSUF }, /* See OP_3DNowSuffix */ | |
950 | /* 10 */ | |
c608c12e AM |
951 | { PREGRP8 }, |
952 | { PREGRP9 }, | |
953 | { "movlps", XM, EX, SIMD_Fixup, 'h' }, /* really only 2 operands */ | |
954 | { "movlps", EX, XM, SIMD_Fixup, 'h' }, | |
955 | { "unpcklps", XM, EX }, | |
956 | { "unpckhps", XM, EX }, | |
957 | { "movhps", XM, EX, SIMD_Fixup, 'l' }, | |
958 | { "movhps", EX, XM, SIMD_Fixup, 'l' }, | |
252b5132 | 959 | /* 18 */ |
c608c12e | 960 | { GRP14 }, |
2da11e11 | 961 | { "(bad)" }, { "(bad)" }, { "(bad)" }, |
252b5132 RH |
962 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
963 | /* 20 */ | |
964 | /* these are all backward in appendix A of the intel book */ | |
965 | { "movL", Rd, Cd }, | |
966 | { "movL", Rd, Dd }, | |
967 | { "movL", Cd, Rd }, | |
968 | { "movL", Dd, Rd }, | |
969 | { "movL", Rd, Td }, | |
970 | { "(bad)" }, | |
971 | { "movL", Td, Rd }, | |
972 | { "(bad)" }, | |
973 | /* 28 */ | |
c608c12e AM |
974 | { "movaps", XM, EX }, |
975 | { "movaps", EX, XM }, | |
976 | { PREGRP2 }, | |
977 | { "movntps", Ev, XM }, | |
2da11e11 | 978 | { PREGRP4 }, |
c608c12e AM |
979 | { PREGRP3 }, |
980 | { "ucomiss", XM, EX }, | |
2da11e11 | 981 | { "comiss", XM, EX }, |
252b5132 RH |
982 | /* 30 */ |
983 | { "wrmsr" }, { "rdtsc" }, { "rdmsr" }, { "rdpmc" }, | |
984 | { "sysenter" }, { "sysexit" }, { "(bad)" }, { "(bad)" }, | |
985 | /* 38 */ | |
986 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
987 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
988 | /* 40 */ | |
989 | { "cmovo", Gv,Ev }, { "cmovno", Gv,Ev }, { "cmovb", Gv,Ev }, { "cmovae", Gv,Ev }, | |
990 | { "cmove", Gv,Ev }, { "cmovne", Gv,Ev }, { "cmovbe", Gv,Ev }, { "cmova", Gv,Ev }, | |
991 | /* 48 */ | |
992 | { "cmovs", Gv,Ev }, { "cmovns", Gv,Ev }, { "cmovp", Gv,Ev }, { "cmovnp", Gv,Ev }, | |
993 | { "cmovl", Gv,Ev }, { "cmovge", Gv,Ev }, { "cmovle", Gv,Ev }, { "cmovg", Gv,Ev }, | |
994 | /* 50 */ | |
c608c12e AM |
995 | { "movmskps", Gv, EX }, |
996 | { PREGRP13 }, | |
997 | { PREGRP12 }, | |
998 | { PREGRP11 }, | |
999 | { "andps", XM, EX }, | |
1000 | { "andnps", XM, EX }, | |
1001 | { "orps", XM, EX }, | |
2da11e11 | 1002 | { "xorps", XM, EX }, |
252b5132 | 1003 | /* 58 */ |
c608c12e AM |
1004 | { PREGRP0 }, |
1005 | { PREGRP10 }, | |
1006 | { "(bad)" }, | |
2da11e11 | 1007 | { "(bad)" }, |
c608c12e AM |
1008 | { PREGRP14 }, |
1009 | { PREGRP7 }, | |
1010 | { PREGRP5 }, | |
2da11e11 | 1011 | { PREGRP6 }, |
252b5132 RH |
1012 | /* 60 */ |
1013 | { "punpcklbw", MX, EM }, | |
1014 | { "punpcklwd", MX, EM }, | |
1015 | { "punpckldq", MX, EM }, | |
1016 | { "packsswb", MX, EM }, | |
1017 | { "pcmpgtb", MX, EM }, | |
1018 | { "pcmpgtw", MX, EM }, | |
1019 | { "pcmpgtd", MX, EM }, | |
1020 | { "packuswb", MX, EM }, | |
1021 | /* 68 */ | |
1022 | { "punpckhbw", MX, EM }, | |
1023 | { "punpckhwd", MX, EM }, | |
1024 | { "punpckhdq", MX, EM }, | |
1025 | { "packssdw", MX, EM }, | |
1026 | { "(bad)" }, { "(bad)" }, | |
2da11e11 | 1027 | { "movd", MX, Ed }, |
252b5132 RH |
1028 | { "movq", MX, EM }, |
1029 | /* 70 */ | |
c608c12e | 1030 | { "pshufw", MX, EM, Ib }, |
252b5132 RH |
1031 | { GRP10 }, |
1032 | { GRP11 }, | |
1033 | { GRP12 }, | |
1034 | { "pcmpeqb", MX, EM }, | |
1035 | { "pcmpeqw", MX, EM }, | |
1036 | { "pcmpeqd", MX, EM }, | |
1037 | { "emms" }, | |
1038 | /* 78 */ | |
1039 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1040 | { "(bad)" }, { "(bad)" }, | |
2da11e11 | 1041 | { "movd", Ed, MX }, |
252b5132 RH |
1042 | { "movq", EM, MX }, |
1043 | /* 80 */ | |
1044 | { "jo", Jv }, | |
1045 | { "jno", Jv }, | |
1046 | { "jb", Jv }, | |
1047 | { "jae", Jv }, | |
1048 | { "je", Jv }, | |
1049 | { "jne", Jv }, | |
1050 | { "jbe", Jv }, | |
1051 | { "ja", Jv }, | |
1052 | /* 88 */ | |
1053 | { "js", Jv }, | |
1054 | { "jns", Jv }, | |
1055 | { "jp", Jv }, | |
1056 | { "jnp", Jv }, | |
1057 | { "jl", Jv }, | |
1058 | { "jge", Jv }, | |
1059 | { "jle", Jv }, | |
1060 | { "jg", Jv }, | |
1061 | /* 90 */ | |
1062 | { "seto", Eb }, | |
1063 | { "setno", Eb }, | |
1064 | { "setb", Eb }, | |
1065 | { "setae", Eb }, | |
1066 | { "sete", Eb }, | |
1067 | { "setne", Eb }, | |
1068 | { "setbe", Eb }, | |
1069 | { "seta", Eb }, | |
1070 | /* 98 */ | |
1071 | { "sets", Eb }, | |
1072 | { "setns", Eb }, | |
1073 | { "setp", Eb }, | |
1074 | { "setnp", Eb }, | |
1075 | { "setl", Eb }, | |
1076 | { "setge", Eb }, | |
1077 | { "setle", Eb }, | |
1078 | { "setg", Eb }, | |
1079 | /* a0 */ | |
1080 | { "pushP", fs }, | |
1081 | { "popP", fs }, | |
1082 | { "cpuid" }, | |
1083 | { "btS", Ev, Gv }, | |
1084 | { "shldS", Ev, Gv, Ib }, | |
1085 | { "shldS", Ev, Gv, CL }, | |
1086 | { "(bad)" }, | |
1087 | { "(bad)" }, | |
1088 | /* a8 */ | |
1089 | { "pushP", gs }, | |
1090 | { "popP", gs }, | |
1091 | { "rsm" }, | |
1092 | { "btsS", Ev, Gv }, | |
1093 | { "shrdS", Ev, Gv, Ib }, | |
1094 | { "shrdS", Ev, Gv, CL }, | |
1095 | { GRP13 }, | |
1096 | { "imulS", Gv, Ev }, | |
1097 | /* b0 */ | |
1098 | { "cmpxchgB", Eb, Gb }, | |
1099 | { "cmpxchgS", Ev, Gv }, | |
2da11e11 | 1100 | { "lssS", Gv, Mp }, |
252b5132 | 1101 | { "btrS", Ev, Gv }, |
2da11e11 AM |
1102 | { "lfsS", Gv, Mp }, |
1103 | { "lgsS", Gv, Mp }, | |
252b5132 RH |
1104 | { "movzbR", Gv, Eb }, |
1105 | { "movzwR", Gv, Ew }, /* yes, there really is movzww ! */ | |
1106 | /* b8 */ | |
1107 | { "(bad)" }, | |
1108 | { "ud2b" }, | |
1109 | { GRP8 }, | |
1110 | { "btcS", Ev, Gv }, | |
1111 | { "bsfS", Gv, Ev }, | |
1112 | { "bsrS", Gv, Ev }, | |
1113 | { "movsbR", Gv, Eb }, | |
1114 | { "movswR", Gv, Ew }, /* yes, there really is movsww ! */ | |
1115 | /* c0 */ | |
1116 | { "xaddB", Eb, Gb }, | |
1117 | { "xaddS", Ev, Gv }, | |
c608c12e | 1118 | { PREGRP1 }, |
252b5132 | 1119 | { "(bad)" }, |
c608c12e AM |
1120 | { "pinsrw", MX, Ev, Ib }, |
1121 | { "pextrw", Ev, MX, Ib }, | |
1122 | { "shufps", XM, EX, Ib }, | |
252b5132 RH |
1123 | { GRP9 }, |
1124 | /* c8 */ | |
1125 | { "bswap", eAX }, /* bswap doesn't support 16 bit regs */ | |
1126 | { "bswap", eCX }, | |
1127 | { "bswap", eDX }, | |
1128 | { "bswap", eBX }, | |
1129 | { "bswap", eSP }, | |
1130 | { "bswap", eBP }, | |
1131 | { "bswap", eSI }, | |
1132 | { "bswap", eDI }, | |
1133 | /* d0 */ | |
1134 | { "(bad)" }, | |
1135 | { "psrlw", MX, EM }, | |
1136 | { "psrld", MX, EM }, | |
1137 | { "psrlq", MX, EM }, | |
1138 | { "(bad)" }, | |
1139 | { "pmullw", MX, EM }, | |
c608c12e | 1140 | { "(bad)" }, |
2da11e11 | 1141 | { "pmovmskb", Ev, MX }, |
252b5132 RH |
1142 | /* d8 */ |
1143 | { "psubusb", MX, EM }, | |
1144 | { "psubusw", MX, EM }, | |
c608c12e | 1145 | { "pminub", MX, EM }, |
252b5132 RH |
1146 | { "pand", MX, EM }, |
1147 | { "paddusb", MX, EM }, | |
1148 | { "paddusw", MX, EM }, | |
c608c12e | 1149 | { "pmaxub", MX, EM }, |
252b5132 RH |
1150 | { "pandn", MX, EM }, |
1151 | /* e0 */ | |
c608c12e | 1152 | { "pavgb", MX, EM }, |
252b5132 RH |
1153 | { "psraw", MX, EM }, |
1154 | { "psrad", MX, EM }, | |
c608c12e AM |
1155 | { "pavgw", MX, EM }, |
1156 | { "pmulhuw", MX, EM }, | |
252b5132 | 1157 | { "pmulhw", MX, EM }, |
c608c12e | 1158 | { "(bad)" }, |
2da11e11 | 1159 | { "movntq", Ev, MX }, |
252b5132 RH |
1160 | /* e8 */ |
1161 | { "psubsb", MX, EM }, | |
1162 | { "psubsw", MX, EM }, | |
c608c12e | 1163 | { "pminsw", MX, EM }, |
252b5132 RH |
1164 | { "por", MX, EM }, |
1165 | { "paddsb", MX, EM }, | |
1166 | { "paddsw", MX, EM }, | |
c608c12e | 1167 | { "pmaxsw", MX, EM }, |
252b5132 RH |
1168 | { "pxor", MX, EM }, |
1169 | /* f0 */ | |
1170 | { "(bad)" }, | |
1171 | { "psllw", MX, EM }, | |
1172 | { "pslld", MX, EM }, | |
1173 | { "psllq", MX, EM }, | |
1174 | { "(bad)" }, | |
1175 | { "pmaddwd", MX, EM }, | |
c608c12e | 1176 | { "psadbw", MX, EM }, |
2da11e11 | 1177 | { "maskmovq", MX, EM }, |
252b5132 RH |
1178 | /* f8 */ |
1179 | { "psubb", MX, EM }, | |
1180 | { "psubw", MX, EM }, | |
1181 | { "psubd", MX, EM }, | |
1182 | { "(bad)" }, | |
1183 | { "paddb", MX, EM }, | |
1184 | { "paddw", MX, EM }, | |
1185 | { "paddd", MX, EM }, | |
1186 | { "(bad)" } | |
1187 | }; | |
1188 | ||
2da11e11 | 1189 | static const struct dis386 dis386_twobyte_intel[] = { |
252b5132 RH |
1190 | /* 00 */ |
1191 | { GRP6 }, | |
1192 | { GRP7 }, | |
c608c12e AM |
1193 | { "lar", Gv, Ew }, |
1194 | { "lsl", Gv, Ew }, | |
252b5132 RH |
1195 | { "(bad)" }, |
1196 | { "(bad)" }, | |
1197 | { "clts" }, | |
1198 | { "(bad)" }, | |
1199 | /* 08 */ | |
1200 | { "invd" }, | |
1201 | { "wbinvd" }, | |
1202 | { "(bad)" }, | |
1203 | { "ud2a" }, | |
1204 | { "(bad)" }, | |
c608c12e | 1205 | { GRPAMD }, |
252b5132 RH |
1206 | { "femms" }, |
1207 | { "", MX, EM, OPSUF }, /* See OP_3DNowSuffix */ | |
1208 | /* 10 */ | |
c608c12e AM |
1209 | { PREGRP8 }, |
1210 | { PREGRP9 }, | |
1211 | { "movlps", XM, EX, SIMD_Fixup, 'h' }, /* really only 2 operands */ | |
1212 | { "movlps", EX, XM, SIMD_Fixup, 'h' }, | |
1213 | { "unpcklps", XM, EX }, | |
1214 | { "unpckhps", XM, EX }, | |
1215 | { "movhps", XM, EX, SIMD_Fixup, 'l' }, | |
1216 | { "movhps", EX, XM, SIMD_Fixup, 'l' }, | |
252b5132 | 1217 | /* 18 */ |
c608c12e | 1218 | { GRP14 }, |
2da11e11 | 1219 | { "(bad)" }, { "(bad)" }, { "(bad)" }, |
252b5132 RH |
1220 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, |
1221 | /* 20 */ | |
1222 | /* these are all backward in appendix A of the intel book */ | |
c608c12e AM |
1223 | { "mov", Rd, Cd }, |
1224 | { "mov", Rd, Dd }, | |
1225 | { "mov", Cd, Rd }, | |
1226 | { "mov", Dd, Rd }, | |
1227 | { "mov", Rd, Td }, | |
252b5132 | 1228 | { "(bad)" }, |
c608c12e | 1229 | { "mov", Td, Rd }, |
252b5132 RH |
1230 | { "(bad)" }, |
1231 | /* 28 */ | |
c608c12e AM |
1232 | { "movaps", XM, EX }, |
1233 | { "movaps", EX, XM }, | |
1234 | { PREGRP2 }, | |
1235 | { "movntps", Ev, XM }, | |
2da11e11 | 1236 | { PREGRP4 }, |
c608c12e AM |
1237 | { PREGRP3 }, |
1238 | { "ucomiss", XM, EX }, | |
2da11e11 | 1239 | { "comiss", XM, EX }, |
252b5132 RH |
1240 | /* 30 */ |
1241 | { "wrmsr" }, { "rdtsc" }, { "rdmsr" }, { "rdpmc" }, | |
1242 | { "sysenter" }, { "sysexit" }, { "(bad)" }, { "(bad)" }, | |
1243 | /* 38 */ | |
1244 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1245 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1246 | /* 40 */ | |
1247 | { "cmovo", Gv,Ev }, { "cmovno", Gv,Ev }, { "cmovb", Gv,Ev }, { "cmovae", Gv,Ev }, | |
1248 | { "cmove", Gv,Ev }, { "cmovne", Gv,Ev }, { "cmovbe", Gv,Ev }, { "cmova", Gv,Ev }, | |
1249 | /* 48 */ | |
1250 | { "cmovs", Gv,Ev }, { "cmovns", Gv,Ev }, { "cmovp", Gv,Ev }, { "cmovnp", Gv,Ev }, | |
1251 | { "cmovl", Gv,Ev }, { "cmovge", Gv,Ev }, { "cmovle", Gv,Ev }, { "cmovg", Gv,Ev }, | |
1252 | /* 50 */ | |
c608c12e AM |
1253 | { "movmskps", Gv, EX }, |
1254 | { PREGRP13 }, | |
1255 | { PREGRP12 }, | |
1256 | { PREGRP11 }, | |
1257 | { "andps", XM, EX }, | |
1258 | { "andnps", XM, EX }, | |
1259 | { "orps", XM, EX }, | |
2da11e11 | 1260 | { "xorps", XM, EX }, |
252b5132 | 1261 | /* 58 */ |
c608c12e AM |
1262 | { PREGRP0 }, |
1263 | { PREGRP10 }, | |
1264 | { "(bad)" }, | |
2da11e11 | 1265 | { "(bad)" }, |
c608c12e AM |
1266 | { PREGRP14 }, |
1267 | { PREGRP7 }, | |
1268 | { PREGRP5 }, | |
2da11e11 | 1269 | { PREGRP6 }, |
252b5132 RH |
1270 | /* 60 */ |
1271 | { "punpcklbw", MX, EM }, | |
1272 | { "punpcklwd", MX, EM }, | |
1273 | { "punpckldq", MX, EM }, | |
1274 | { "packsswb", MX, EM }, | |
1275 | { "pcmpgtb", MX, EM }, | |
1276 | { "pcmpgtw", MX, EM }, | |
1277 | { "pcmpgtd", MX, EM }, | |
1278 | { "packuswb", MX, EM }, | |
1279 | /* 68 */ | |
1280 | { "punpckhbw", MX, EM }, | |
1281 | { "punpckhwd", MX, EM }, | |
1282 | { "punpckhdq", MX, EM }, | |
1283 | { "packssdw", MX, EM }, | |
1284 | { "(bad)" }, { "(bad)" }, | |
2da11e11 | 1285 | { "movd", MX, Ed }, |
252b5132 RH |
1286 | { "movq", MX, EM }, |
1287 | /* 70 */ | |
c608c12e | 1288 | { "pshufw", MX, EM, Ib }, |
252b5132 RH |
1289 | { GRP10 }, |
1290 | { GRP11 }, | |
1291 | { GRP12 }, | |
1292 | { "pcmpeqb", MX, EM }, | |
1293 | { "pcmpeqw", MX, EM }, | |
1294 | { "pcmpeqd", MX, EM }, | |
1295 | { "emms" }, | |
1296 | /* 78 */ | |
1297 | { "(bad)" }, { "(bad)" }, { "(bad)" }, { "(bad)" }, | |
1298 | { "(bad)" }, { "(bad)" }, | |
2da11e11 | 1299 | { "movd", Ed, MX }, |
252b5132 RH |
1300 | { "movq", EM, MX }, |
1301 | /* 80 */ | |
1302 | { "jo", Jv }, | |
1303 | { "jno", Jv }, | |
1304 | { "jb", Jv }, | |
1305 | { "jae", Jv }, | |
1306 | { "je", Jv }, | |
1307 | { "jne", Jv }, | |
1308 | { "jbe", Jv }, | |
1309 | { "ja", Jv }, | |
1310 | /* 88 */ | |
1311 | { "js", Jv }, | |
1312 | { "jns", Jv }, | |
1313 | { "jp", Jv }, | |
1314 | { "jnp", Jv }, | |
1315 | { "jl", Jv }, | |
1316 | { "jge", Jv }, | |
1317 | { "jle", Jv }, | |
1318 | { "jg", Jv }, | |
1319 | /* 90 */ | |
1320 | { "seto", Eb }, | |
1321 | { "setno", Eb }, | |
1322 | { "setb", Eb }, | |
1323 | { "setae", Eb }, | |
1324 | { "sete", Eb }, | |
1325 | { "setne", Eb }, | |
1326 | { "setbe", Eb }, | |
1327 | { "seta", Eb }, | |
1328 | /* 98 */ | |
1329 | { "sets", Eb }, | |
1330 | { "setns", Eb }, | |
1331 | { "setp", Eb }, | |
1332 | { "setnp", Eb }, | |
1333 | { "setl", Eb }, | |
1334 | { "setge", Eb }, | |
1335 | { "setle", Eb }, | |
1336 | { "setg", Eb }, | |
1337 | /* a0 */ | |
c608c12e AM |
1338 | { "push", fs }, |
1339 | { "pop", fs }, | |
252b5132 | 1340 | { "cpuid" }, |
c608c12e AM |
1341 | { "bt", Ev, Gv }, |
1342 | { "shld", Ev, Gv, Ib }, | |
1343 | { "shld", Ev, Gv, CL }, | |
252b5132 RH |
1344 | { "(bad)" }, |
1345 | { "(bad)" }, | |
1346 | /* a8 */ | |
c608c12e AM |
1347 | { "push", gs }, |
1348 | { "pop", gs }, | |
252b5132 | 1349 | { "rsm" }, |
c608c12e AM |
1350 | { "bts", Ev, Gv }, |
1351 | { "shrd", Ev, Gv, Ib }, | |
1352 | { "shrd", Ev, Gv, CL }, | |
252b5132 | 1353 | { GRP13 }, |
c608c12e | 1354 | { "imul", Gv, Ev }, |
252b5132 | 1355 | /* b0 */ |
c608c12e AM |
1356 | { "cmpxchg", Eb, Gb }, |
1357 | { "cmpxchg", Ev, Gv }, | |
2da11e11 | 1358 | { "lss", Gv, Mp }, |
c608c12e | 1359 | { "btr", Ev, Gv }, |
2da11e11 AM |
1360 | { "lfs", Gv, Mp }, |
1361 | { "lgs", Gv, Mp }, | |
252b5132 RH |
1362 | { "movzx", Gv, Eb }, |
1363 | { "movzx", Gv, Ew }, | |
1364 | /* b8 */ | |
1365 | { "(bad)" }, | |
1366 | { "ud2b" }, | |
1367 | { GRP8 }, | |
c608c12e AM |
1368 | { "btc", Ev, Gv }, |
1369 | { "bsf", Gv, Ev }, | |
1370 | { "bsr", Gv, Ev }, | |
252b5132 RH |
1371 | { "movsx", Gv, Eb }, |
1372 | { "movsx", Gv, Ew }, | |
1373 | /* c0 */ | |
c608c12e AM |
1374 | { "xadd", Eb, Gb }, |
1375 | { "xadd", Ev, Gv }, | |
1376 | { PREGRP1 }, | |
252b5132 | 1377 | { "(bad)" }, |
c608c12e AM |
1378 | { "pinsrw", MX, Ev, Ib }, |
1379 | { "pextrw", Ev, MX, Ib }, | |
1380 | { "shufps", XM, EX, Ib }, | |
252b5132 RH |
1381 | { GRP9 }, |
1382 | /* c8 */ | |
1383 | { "bswap", eAX }, /* bswap doesn't support 16 bit regs */ | |
1384 | { "bswap", eCX }, | |
1385 | { "bswap", eDX }, | |
1386 | { "bswap", eBX }, | |
1387 | { "bswap", eSP }, | |
1388 | { "bswap", eBP }, | |
1389 | { "bswap", eSI }, | |
1390 | { "bswap", eDI }, | |
1391 | /* d0 */ | |
1392 | { "(bad)" }, | |
1393 | { "psrlw", MX, EM }, | |
1394 | { "psrld", MX, EM }, | |
1395 | { "psrlq", MX, EM }, | |
1396 | { "(bad)" }, | |
1397 | { "pmullw", MX, EM }, | |
c608c12e | 1398 | { "(bad)" }, |
2da11e11 | 1399 | { "pmovmskb", Ev, MX }, |
252b5132 RH |
1400 | /* d8 */ |
1401 | { "psubusb", MX, EM }, | |
1402 | { "psubusw", MX, EM }, | |
c608c12e | 1403 | { "pminub", MX, EM }, |
252b5132 RH |
1404 | { "pand", MX, EM }, |
1405 | { "paddusb", MX, EM }, | |
1406 | { "paddusw", MX, EM }, | |
c608c12e | 1407 | { "pmaxub", MX, EM }, |
252b5132 RH |
1408 | { "pandn", MX, EM }, |
1409 | /* e0 */ | |
c608c12e | 1410 | { "pavgb", MX, EM }, |
252b5132 RH |
1411 | { "psraw", MX, EM }, |
1412 | { "psrad", MX, EM }, | |
c608c12e AM |
1413 | { "pavgw", MX, EM }, |
1414 | { "pmulhuw", MX, EM }, | |
252b5132 | 1415 | { "pmulhw", MX, EM }, |
c608c12e | 1416 | { "(bad)" }, |
2da11e11 | 1417 | { "movntq", Ev, MX }, |
252b5132 RH |
1418 | /* e8 */ |
1419 | { "psubsb", MX, EM }, | |
1420 | { "psubsw", MX, EM }, | |
c608c12e | 1421 | { "pminsw", MX, EM }, |
252b5132 RH |
1422 | { "por", MX, EM }, |
1423 | { "paddsb", MX, EM }, | |
1424 | { "paddsw", MX, EM }, | |
c608c12e | 1425 | { "pmaxsw", MX, EM }, |
252b5132 RH |
1426 | { "pxor", MX, EM }, |
1427 | /* f0 */ | |
1428 | { "(bad)" }, | |
1429 | { "psllw", MX, EM }, | |
1430 | { "pslld", MX, EM }, | |
1431 | { "psllq", MX, EM }, | |
1432 | { "(bad)" }, | |
1433 | { "pmaddwd", MX, EM }, | |
c608c12e | 1434 | { "psadbw", MX, EM }, |
2da11e11 | 1435 | { "maskmovq", MX, EM }, |
252b5132 RH |
1436 | /* f8 */ |
1437 | { "psubb", MX, EM }, | |
1438 | { "psubw", MX, EM }, | |
1439 | { "psubd", MX, EM }, | |
1440 | { "(bad)" }, | |
1441 | { "paddb", MX, EM }, | |
1442 | { "paddw", MX, EM }, | |
1443 | { "paddd", MX, EM }, | |
1444 | { "(bad)" } | |
1445 | }; | |
1446 | ||
1447 | static const unsigned char onebyte_has_modrm[256] = { | |
c608c12e AM |
1448 | /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ |
1449 | /* ------------------------------- */ | |
1450 | /* 00 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 00 */ | |
1451 | /* 10 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 10 */ | |
1452 | /* 20 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 20 */ | |
1453 | /* 30 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 30 */ | |
1454 | /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 40 */ | |
1455 | /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 50 */ | |
1456 | /* 60 */ 0,0,1,1,0,0,0,0,0,1,0,1,0,0,0,0, /* 60 */ | |
1457 | /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 70 */ | |
1458 | /* 80 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 80 */ | |
1459 | /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 90 */ | |
1460 | /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* a0 */ | |
1461 | /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* b0 */ | |
1462 | /* c0 */ 1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,0, /* c0 */ | |
1463 | /* d0 */ 1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* d0 */ | |
1464 | /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* e0 */ | |
1465 | /* f0 */ 0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1 /* f0 */ | |
1466 | /* ------------------------------- */ | |
1467 | /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ | |
252b5132 RH |
1468 | }; |
1469 | ||
1470 | static const unsigned char twobyte_has_modrm[256] = { | |
c608c12e AM |
1471 | /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ |
1472 | /* ------------------------------- */ | |
252b5132 | 1473 | /* 00 */ 1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,1, /* 0f */ |
c608c12e AM |
1474 | /* 10 */ 1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0, /* 1f */ |
1475 | /* 20 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 2f */ | |
252b5132 RH |
1476 | /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */ |
1477 | /* 40 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4f */ | |
c608c12e | 1478 | /* 50 */ 1,1,1,1,1,1,1,1,1,1,0,0,1,1,1,1, /* 5f */ |
252b5132 | 1479 | /* 60 */ 1,1,1,1,1,1,1,1,1,1,1,1,0,0,1,1, /* 6f */ |
c608c12e | 1480 | /* 70 */ 1,1,1,1,1,1,1,0,0,0,0,0,0,0,1,1, /* 7f */ |
252b5132 RH |
1481 | /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */ |
1482 | /* 90 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 9f */ | |
1483 | /* a0 */ 0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1, /* af */ | |
1484 | /* b0 */ 1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1, /* bf */ | |
1485 | /* c0 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* cf */ | |
c608c12e AM |
1486 | /* d0 */ 0,1,1,1,0,1,0,1,1,1,1,1,1,1,1,1, /* df */ |
1487 | /* e0 */ 1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1, /* ef */ | |
1488 | /* f0 */ 0,1,1,1,0,1,1,1,1,1,1,0,1,1,1,0 /* ff */ | |
1489 | /* ------------------------------- */ | |
1490 | /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ | |
1491 | }; | |
1492 | ||
1493 | static const unsigned char twobyte_uses_f3_prefix[256] = { | |
1494 | /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ | |
1495 | /* ------------------------------- */ | |
1496 | /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */ | |
1497 | /* 10 */ 1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */ | |
1498 | /* 20 */ 0,0,0,0,0,0,0,0,0,0,1,0,1,1,0,0, /* 2f */ | |
1499 | /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */ | |
1500 | /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */ | |
1501 | /* 50 */ 0,1,1,1,0,0,0,0,1,1,0,0,1,1,1,1, /* 5f */ | |
1502 | /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */ | |
1503 | /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */ | |
1504 | /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */ | |
1505 | /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */ | |
1506 | /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */ | |
1507 | /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */ | |
1508 | /* c0 */ 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */ | |
1509 | /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */ | |
1510 | /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */ | |
1511 | /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 /* ff */ | |
1512 | /* ------------------------------- */ | |
1513 | /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */ | |
252b5132 RH |
1514 | }; |
1515 | ||
1516 | static char obuf[100]; | |
1517 | static char *obufp; | |
1518 | static char scratchbuf[100]; | |
1519 | static unsigned char *start_codep; | |
1520 | static unsigned char *insn_codep; | |
1521 | static unsigned char *codep; | |
1522 | static disassemble_info *the_info; | |
1523 | static int mod; | |
1524 | static int rm; | |
1525 | static int reg; | |
2da11e11 | 1526 | static void oappend PARAMS ((const char *s)); |
252b5132 | 1527 | |
2da11e11 | 1528 | static const char *names32[]={ |
252b5132 RH |
1529 | "%eax","%ecx","%edx","%ebx", "%esp","%ebp","%esi","%edi", |
1530 | }; | |
2da11e11 | 1531 | static const char *names16[] = { |
252b5132 RH |
1532 | "%ax","%cx","%dx","%bx","%sp","%bp","%si","%di", |
1533 | }; | |
2da11e11 | 1534 | static const char *names8[] = { |
252b5132 RH |
1535 | "%al","%cl","%dl","%bl","%ah","%ch","%dh","%bh", |
1536 | }; | |
2da11e11 | 1537 | static const char *names_seg[] = { |
252b5132 RH |
1538 | "%es","%cs","%ss","%ds","%fs","%gs","%?","%?", |
1539 | }; | |
2da11e11 | 1540 | static const char *index16[] = { |
252b5132 RH |
1541 | "%bx,%si","%bx,%di","%bp,%si","%bp,%di","%si","%di","%bp","%bx" |
1542 | }; | |
1543 | ||
2da11e11 | 1544 | static const struct dis386 grps[][8] = { |
252b5132 RH |
1545 | /* GRP1b */ |
1546 | { | |
1547 | { "addA", Eb, Ib }, | |
1548 | { "orA", Eb, Ib }, | |
1549 | { "adcA", Eb, Ib }, | |
1550 | { "sbbA", Eb, Ib }, | |
1551 | { "andA", Eb, Ib }, | |
1552 | { "subA", Eb, Ib }, | |
1553 | { "xorA", Eb, Ib }, | |
1554 | { "cmpA", Eb, Ib } | |
1555 | }, | |
1556 | /* GRP1S */ | |
1557 | { | |
1558 | { "addQ", Ev, Iv }, | |
1559 | { "orQ", Ev, Iv }, | |
1560 | { "adcQ", Ev, Iv }, | |
1561 | { "sbbQ", Ev, Iv }, | |
1562 | { "andQ", Ev, Iv }, | |
1563 | { "subQ", Ev, Iv }, | |
1564 | { "xorQ", Ev, Iv }, | |
1565 | { "cmpQ", Ev, Iv } | |
1566 | }, | |
1567 | /* GRP1Ss */ | |
1568 | { | |
1569 | { "addQ", Ev, sIb }, | |
1570 | { "orQ", Ev, sIb }, | |
1571 | { "adcQ", Ev, sIb }, | |
1572 | { "sbbQ", Ev, sIb }, | |
1573 | { "andQ", Ev, sIb }, | |
1574 | { "subQ", Ev, sIb }, | |
1575 | { "xorQ", Ev, sIb }, | |
1576 | { "cmpQ", Ev, sIb } | |
1577 | }, | |
1578 | /* GRP2b */ | |
1579 | { | |
1580 | { "rolA", Eb, Ib }, | |
1581 | { "rorA", Eb, Ib }, | |
1582 | { "rclA", Eb, Ib }, | |
1583 | { "rcrA", Eb, Ib }, | |
1584 | { "shlA", Eb, Ib }, | |
1585 | { "shrA", Eb, Ib }, | |
1586 | { "(bad)" }, | |
1587 | { "sarA", Eb, Ib }, | |
1588 | }, | |
1589 | /* GRP2S */ | |
1590 | { | |
1591 | { "rolQ", Ev, Ib }, | |
1592 | { "rorQ", Ev, Ib }, | |
1593 | { "rclQ", Ev, Ib }, | |
1594 | { "rcrQ", Ev, Ib }, | |
1595 | { "shlQ", Ev, Ib }, | |
1596 | { "shrQ", Ev, Ib }, | |
1597 | { "(bad)" }, | |
1598 | { "sarQ", Ev, Ib }, | |
1599 | }, | |
1600 | /* GRP2b_one */ | |
1601 | { | |
1602 | { "rolA", Eb }, | |
1603 | { "rorA", Eb }, | |
1604 | { "rclA", Eb }, | |
1605 | { "rcrA", Eb }, | |
1606 | { "shlA", Eb }, | |
1607 | { "shrA", Eb }, | |
1608 | { "(bad)" }, | |
1609 | { "sarA", Eb }, | |
1610 | }, | |
1611 | /* GRP2S_one */ | |
1612 | { | |
1613 | { "rolQ", Ev }, | |
1614 | { "rorQ", Ev }, | |
1615 | { "rclQ", Ev }, | |
1616 | { "rcrQ", Ev }, | |
1617 | { "shlQ", Ev }, | |
1618 | { "shrQ", Ev }, | |
1619 | { "(bad)" }, | |
1620 | { "sarQ", Ev }, | |
1621 | }, | |
1622 | /* GRP2b_cl */ | |
1623 | { | |
1624 | { "rolA", Eb, CL }, | |
1625 | { "rorA", Eb, CL }, | |
1626 | { "rclA", Eb, CL }, | |
1627 | { "rcrA", Eb, CL }, | |
1628 | { "shlA", Eb, CL }, | |
1629 | { "shrA", Eb, CL }, | |
1630 | { "(bad)" }, | |
1631 | { "sarA", Eb, CL }, | |
1632 | }, | |
1633 | /* GRP2S_cl */ | |
1634 | { | |
1635 | { "rolQ", Ev, CL }, | |
1636 | { "rorQ", Ev, CL }, | |
1637 | { "rclQ", Ev, CL }, | |
1638 | { "rcrQ", Ev, CL }, | |
1639 | { "shlQ", Ev, CL }, | |
1640 | { "shrQ", Ev, CL }, | |
1641 | { "(bad)" }, | |
1642 | { "sarQ", Ev, CL } | |
1643 | }, | |
1644 | /* GRP3b */ | |
1645 | { | |
1646 | { "testA", Eb, Ib }, | |
1647 | { "(bad)", Eb }, | |
1648 | { "notA", Eb }, | |
1649 | { "negA", Eb }, | |
1650 | { "mulB", AL, Eb }, | |
1651 | { "imulB", AL, Eb }, | |
1652 | { "divB", AL, Eb }, | |
1653 | { "idivB", AL, Eb } | |
1654 | }, | |
1655 | /* GRP3S */ | |
1656 | { | |
1657 | { "testQ", Ev, Iv }, | |
1658 | { "(bad)" }, | |
1659 | { "notQ", Ev }, | |
1660 | { "negQ", Ev }, | |
1661 | { "mulS", eAX, Ev }, | |
1662 | { "imulS", eAX, Ev }, | |
1663 | { "divS", eAX, Ev }, | |
1664 | { "idivS", eAX, Ev }, | |
1665 | }, | |
1666 | /* GRP4 */ | |
1667 | { | |
1668 | { "incA", Eb }, | |
1669 | { "decA", Eb }, | |
1670 | { "(bad)" }, | |
1671 | { "(bad)" }, | |
1672 | { "(bad)" }, | |
1673 | { "(bad)" }, | |
1674 | { "(bad)" }, | |
1675 | { "(bad)" }, | |
1676 | }, | |
1677 | /* GRP5 */ | |
1678 | { | |
1679 | { "incQ", Ev }, | |
1680 | { "decQ", Ev }, | |
1681 | { "callP", indirEv }, | |
1682 | { "callP", indirEv }, | |
1683 | { "jmpP", indirEv }, | |
1684 | { "ljmpP", indirEv }, | |
1685 | { "pushQ", Ev }, | |
1686 | { "(bad)" }, | |
1687 | }, | |
1688 | /* GRP6 */ | |
1689 | { | |
1690 | { "sldt", Ew }, | |
1691 | { "str", Ew }, | |
1692 | { "lldt", Ew }, | |
1693 | { "ltr", Ew }, | |
1694 | { "verr", Ew }, | |
1695 | { "verw", Ew }, | |
1696 | { "(bad)" }, | |
1697 | { "(bad)" } | |
1698 | }, | |
1699 | /* GRP7 */ | |
1700 | { | |
1701 | { "sgdt", Ew }, | |
1702 | { "sidt", Ew }, | |
1703 | { "lgdt", Ew }, | |
1704 | { "lidt", Ew }, | |
1705 | { "smsw", Ew }, | |
1706 | { "(bad)" }, | |
1707 | { "lmsw", Ew }, | |
1708 | { "invlpg", Ew }, | |
1709 | }, | |
1710 | /* GRP8 */ | |
1711 | { | |
1712 | { "(bad)" }, | |
1713 | { "(bad)" }, | |
1714 | { "(bad)" }, | |
1715 | { "(bad)" }, | |
1716 | { "btQ", Ev, Ib }, | |
1717 | { "btsQ", Ev, Ib }, | |
1718 | { "btrQ", Ev, Ib }, | |
1719 | { "btcQ", Ev, Ib }, | |
1720 | }, | |
1721 | /* GRP9 */ | |
1722 | { | |
1723 | { "(bad)" }, | |
1724 | { "cmpxchg8b", Ev }, | |
1725 | { "(bad)" }, | |
1726 | { "(bad)" }, | |
1727 | { "(bad)" }, | |
1728 | { "(bad)" }, | |
1729 | { "(bad)" }, | |
1730 | { "(bad)" }, | |
1731 | }, | |
1732 | /* GRP10 */ | |
1733 | { | |
1734 | { "(bad)" }, | |
1735 | { "(bad)" }, | |
1736 | { "psrlw", MS, Ib }, | |
1737 | { "(bad)" }, | |
1738 | { "psraw", MS, Ib }, | |
1739 | { "(bad)" }, | |
1740 | { "psllw", MS, Ib }, | |
1741 | { "(bad)" }, | |
1742 | }, | |
1743 | /* GRP11 */ | |
1744 | { | |
1745 | { "(bad)" }, | |
1746 | { "(bad)" }, | |
1747 | { "psrld", MS, Ib }, | |
1748 | { "(bad)" }, | |
1749 | { "psrad", MS, Ib }, | |
1750 | { "(bad)" }, | |
1751 | { "pslld", MS, Ib }, | |
1752 | { "(bad)" }, | |
1753 | }, | |
1754 | /* GRP12 */ | |
1755 | { | |
1756 | { "(bad)" }, | |
1757 | { "(bad)" }, | |
1758 | { "psrlq", MS, Ib }, | |
1759 | { "(bad)" }, | |
1760 | { "(bad)" }, | |
1761 | { "(bad)" }, | |
1762 | { "psllq", MS, Ib }, | |
1763 | { "(bad)" }, | |
1764 | }, | |
1765 | /* GRP13 */ | |
1766 | { | |
1767 | { "fxsave", Ev }, | |
1768 | { "fxrstor", Ev }, | |
c608c12e AM |
1769 | { "ldmxcsr", Ev }, |
1770 | { "stmxcsr", Ev }, | |
1771 | { "(bad)" }, | |
252b5132 RH |
1772 | { "(bad)" }, |
1773 | { "(bad)" }, | |
c608c12e AM |
1774 | { "sfence", None }, |
1775 | }, | |
1776 | /* GRP14 */ | |
1777 | { | |
1778 | { "prefetchnta", Ev }, | |
1779 | { "prefetcht0", Ev }, | |
1780 | { "prefetcht1", Ev }, | |
1781 | { "prefetcht2", Ev }, | |
252b5132 RH |
1782 | { "(bad)" }, |
1783 | { "(bad)" }, | |
1784 | { "(bad)" }, | |
1785 | { "(bad)" }, | |
1786 | }, | |
c608c12e | 1787 | /* GRPAMD */ |
252b5132 RH |
1788 | { |
1789 | { "prefetch", Eb }, | |
1790 | { "prefetchw", Eb }, | |
1791 | { "(bad)" }, | |
1792 | { "(bad)" }, | |
1793 | { "(bad)" }, | |
1794 | { "(bad)" }, | |
1795 | { "(bad)" }, | |
1796 | { "(bad)" }, | |
1797 | } | |
1798 | ||
1799 | }; | |
1800 | ||
2da11e11 | 1801 | static const struct dis386 prefix_user_table[][2] = { |
c608c12e AM |
1802 | /* PREGRP0 */ |
1803 | { | |
1804 | { "addps", XM, EX }, | |
1805 | { "addss", XM, EX }, | |
1806 | }, | |
1807 | /* PREGRP1 */ | |
1808 | { | |
1809 | { "", XM, EX, OPSIMD }, /* See OP_SIMD_SUFFIX */ | |
1810 | { "", XM, EX, OPSIMD }, | |
1811 | }, | |
1812 | /* PREGRP2 */ | |
1813 | { | |
1814 | { "cvtpi2ps", XM, EM }, | |
1815 | { "cvtsi2ss", XM, Ev }, | |
1816 | }, | |
1817 | /* PREGRP3 */ | |
1818 | { | |
1819 | { "cvtps2pi", MX, EX }, | |
1820 | { "cvtss2si", Gv, EX }, | |
1821 | }, | |
1822 | /* PREGRP4 */ | |
1823 | { | |
2da11e11 AM |
1824 | { "cvttps2pi", MX, EX }, |
1825 | { "cvttss2si", Gv, EX }, | |
c608c12e AM |
1826 | }, |
1827 | /* PREGRP5 */ | |
1828 | { | |
1829 | { "divps", XM, EX }, | |
1830 | { "divss", XM, EX }, | |
1831 | }, | |
1832 | /* PREGRP6 */ | |
1833 | { | |
1834 | { "maxps", XM, EX }, | |
1835 | { "maxss", XM, EX }, | |
1836 | }, | |
1837 | /* PREGRP7 */ | |
1838 | { | |
1839 | { "minps", XM, EX }, | |
1840 | { "minss", XM, EX }, | |
1841 | }, | |
1842 | /* PREGRP8 */ | |
1843 | { | |
1844 | { "movups", XM, EX }, | |
1845 | { "movss", XM, EX }, | |
1846 | }, | |
1847 | /* PREGRP9 */ | |
1848 | { | |
1849 | { "movups", EX, XM }, | |
1850 | { "movss", EX, XM }, | |
1851 | }, | |
1852 | /* PREGRP10 */ | |
1853 | { | |
1854 | { "mulps", XM, EX }, | |
1855 | { "mulss", XM, EX }, | |
1856 | }, | |
1857 | /* PREGRP11 */ | |
1858 | { | |
1859 | { "rcpps", XM, EX }, | |
1860 | { "rcpss", XM, EX }, | |
1861 | }, | |
1862 | /* PREGRP12 */ | |
1863 | { | |
1864 | { "rsqrtps", XM, EX }, | |
1865 | { "rsqrtss", XM, EX }, | |
1866 | }, | |
1867 | /* PREGRP13 */ | |
1868 | { | |
1869 | { "sqrtps", XM, EX }, | |
1870 | { "sqrtss", XM, EX }, | |
1871 | }, | |
1872 | /* PREGRP14 */ | |
1873 | { | |
1874 | { "subps", XM, EX }, | |
1875 | { "subss", XM, EX }, | |
1876 | } | |
1877 | }; | |
1878 | ||
1879 | #define INTERNAL_DISASSEMBLER_ERROR _("<internal disassembler error>") | |
1880 | ||
252b5132 RH |
1881 | static void |
1882 | ckprefix () | |
1883 | { | |
1884 | prefixes = 0; | |
7d421014 | 1885 | used_prefixes = 0; |
252b5132 RH |
1886 | while (1) |
1887 | { | |
1888 | FETCH_DATA (the_info, codep + 1); | |
1889 | switch (*codep) | |
1890 | { | |
1891 | case 0xf3: | |
1892 | prefixes |= PREFIX_REPZ; | |
1893 | break; | |
1894 | case 0xf2: | |
1895 | prefixes |= PREFIX_REPNZ; | |
1896 | break; | |
1897 | case 0xf0: | |
1898 | prefixes |= PREFIX_LOCK; | |
1899 | break; | |
1900 | case 0x2e: | |
1901 | prefixes |= PREFIX_CS; | |
1902 | break; | |
1903 | case 0x36: | |
1904 | prefixes |= PREFIX_SS; | |
1905 | break; | |
1906 | case 0x3e: | |
1907 | prefixes |= PREFIX_DS; | |
1908 | break; | |
1909 | case 0x26: | |
1910 | prefixes |= PREFIX_ES; | |
1911 | break; | |
1912 | case 0x64: | |
1913 | prefixes |= PREFIX_FS; | |
1914 | break; | |
1915 | case 0x65: | |
1916 | prefixes |= PREFIX_GS; | |
1917 | break; | |
1918 | case 0x66: | |
1919 | prefixes |= PREFIX_DATA; | |
1920 | break; | |
1921 | case 0x67: | |
1922 | prefixes |= PREFIX_ADDR; | |
1923 | break; | |
5076851f | 1924 | case FWAIT_OPCODE: |
252b5132 RH |
1925 | /* fwait is really an instruction. If there are prefixes |
1926 | before the fwait, they belong to the fwait, *not* to the | |
1927 | following instruction. */ | |
1928 | if (prefixes) | |
1929 | { | |
1930 | prefixes |= PREFIX_FWAIT; | |
1931 | codep++; | |
1932 | return; | |
1933 | } | |
1934 | prefixes = PREFIX_FWAIT; | |
1935 | break; | |
1936 | default: | |
1937 | return; | |
1938 | } | |
1939 | codep++; | |
1940 | } | |
1941 | } | |
1942 | ||
7d421014 ILT |
1943 | /* Return the name of the prefix byte PREF, or NULL if PREF is not a |
1944 | prefix byte. */ | |
1945 | ||
1946 | static const char * | |
1947 | prefix_name (pref, sizeflag) | |
1948 | int pref; | |
1949 | int sizeflag; | |
1950 | { | |
1951 | switch (pref) | |
1952 | { | |
1953 | case 0xf3: | |
1954 | return "repz"; | |
1955 | case 0xf2: | |
1956 | return "repnz"; | |
1957 | case 0xf0: | |
1958 | return "lock"; | |
1959 | case 0x2e: | |
1960 | return "cs"; | |
1961 | case 0x36: | |
1962 | return "ss"; | |
1963 | case 0x3e: | |
1964 | return "ds"; | |
1965 | case 0x26: | |
1966 | return "es"; | |
1967 | case 0x64: | |
1968 | return "fs"; | |
1969 | case 0x65: | |
1970 | return "gs"; | |
1971 | case 0x66: | |
1972 | return (sizeflag & DFLAG) ? "data16" : "data32"; | |
1973 | case 0x67: | |
1974 | return (sizeflag & AFLAG) ? "addr16" : "addr32"; | |
1975 | case FWAIT_OPCODE: | |
1976 | return "fwait"; | |
1977 | default: | |
1978 | return NULL; | |
1979 | } | |
1980 | } | |
1981 | ||
252b5132 RH |
1982 | static char op1out[100], op2out[100], op3out[100]; |
1983 | static int op_ad, op_index[3]; | |
1984 | static unsigned int op_address[3]; | |
1985 | static unsigned int start_pc; | |
1986 | ||
1987 | \f | |
1988 | /* | |
1989 | * On the 386's of 1988, the maximum length of an instruction is 15 bytes. | |
1990 | * (see topic "Redundant prefixes" in the "Differences from 8086" | |
1991 | * section of the "Virtual 8086 Mode" chapter.) | |
1992 | * 'pc' should be the address of this instruction, it will | |
1993 | * be used to print the target address if this is a relative jump or call | |
1994 | * The function returns the length of this instruction in bytes. | |
1995 | */ | |
1996 | ||
252b5132 RH |
1997 | static int print_insn_i386 |
1998 | PARAMS ((bfd_vma pc, disassemble_info *info)); | |
1999 | ||
2000 | static char intel_syntax; | |
2001 | static char open_char; | |
2002 | static char close_char; | |
2003 | static char separator_char; | |
2004 | static char scale_char; | |
2005 | ||
2006 | int | |
2007 | print_insn_i386_att (pc, info) | |
2008 | bfd_vma pc; | |
2009 | disassemble_info *info; | |
2010 | { | |
2011 | intel_syntax = 0; | |
2012 | open_char = '('; | |
2013 | close_char = ')'; | |
2014 | separator_char = ','; | |
2015 | scale_char = ','; | |
2016 | ||
2017 | return print_insn_i386 (pc, info); | |
2018 | } | |
2019 | ||
2020 | int | |
2021 | print_insn_i386_intel (pc, info) | |
2022 | bfd_vma pc; | |
2023 | disassemble_info *info; | |
2024 | { | |
2025 | intel_syntax = 1; | |
2026 | open_char = '['; | |
2027 | close_char = ']'; | |
2028 | separator_char = '+'; | |
2029 | scale_char = '*'; | |
2030 | ||
2031 | return print_insn_i386 (pc, info); | |
2032 | } | |
2033 | ||
2034 | static int | |
2035 | print_insn_i386 (pc, info) | |
2036 | bfd_vma pc; | |
2037 | disassemble_info *info; | |
2038 | { | |
2da11e11 | 2039 | const struct dis386 *dp; |
252b5132 RH |
2040 | int i; |
2041 | int two_source_ops; | |
2042 | char *first, *second, *third; | |
2043 | int needcomma; | |
2044 | unsigned char need_modrm; | |
c608c12e | 2045 | unsigned char uses_f3_prefix; |
7d421014 | 2046 | int sizeflag, orig_sizeflag; |
252b5132 RH |
2047 | |
2048 | struct dis_private priv; | |
2049 | bfd_byte *inbuf = priv.the_buffer; | |
2050 | ||
2da11e11 AM |
2051 | if (info->mach == bfd_mach_i386_i386 |
2052 | || info->mach == bfd_mach_i386_i386_intel_syntax) | |
2053 | sizeflag = AFLAG|DFLAG; | |
2054 | else if (info->mach == bfd_mach_i386_i8086) | |
2055 | sizeflag = 0; | |
2056 | else | |
2057 | abort (); | |
7d421014 | 2058 | orig_sizeflag = sizeflag; |
2da11e11 | 2059 | |
c608c12e AM |
2060 | /* The output looks better if we put 6 bytes on a line, since that |
2061 | puts most long word instructions on a single line. */ | |
2062 | info->bytes_per_line = 6; | |
252b5132 RH |
2063 | |
2064 | info->private_data = (PTR) &priv; | |
2065 | priv.max_fetched = priv.the_buffer; | |
2066 | priv.insn_start = pc; | |
252b5132 RH |
2067 | |
2068 | obuf[0] = 0; | |
2069 | op1out[0] = 0; | |
2070 | op2out[0] = 0; | |
2071 | op3out[0] = 0; | |
2072 | ||
2073 | op_index[0] = op_index[1] = op_index[2] = -1; | |
2074 | ||
2075 | the_info = info; | |
2076 | start_pc = pc; | |
2077 | start_codep = inbuf; | |
2078 | codep = inbuf; | |
2079 | ||
5076851f ILT |
2080 | if (setjmp (priv.bailout) != 0) |
2081 | { | |
7d421014 ILT |
2082 | const char *name; |
2083 | ||
5076851f | 2084 | /* Getting here means we tried for data but didn't get it. That |
7d421014 ILT |
2085 | means we have an incomplete instruction of some sort. Just |
2086 | print the first byte as a prefix or a .byte pseudo-op. */ | |
2087 | if (codep > inbuf) | |
5076851f | 2088 | { |
7d421014 ILT |
2089 | name = prefix_name (inbuf[0], orig_sizeflag); |
2090 | if (name != NULL) | |
2091 | (*info->fprintf_func) (info->stream, "%s", name); | |
2092 | else | |
5076851f | 2093 | { |
7d421014 ILT |
2094 | /* Just print the first byte as a .byte instruction. */ |
2095 | (*info->fprintf_func) (info->stream, ".byte 0x%x", | |
2096 | (unsigned int) inbuf[0]); | |
5076851f | 2097 | } |
5076851f | 2098 | |
7d421014 | 2099 | return 1; |
5076851f ILT |
2100 | } |
2101 | ||
2102 | return -1; | |
2103 | } | |
2104 | ||
252b5132 RH |
2105 | ckprefix (); |
2106 | ||
2107 | insn_codep = codep; | |
2108 | ||
2109 | FETCH_DATA (info, codep + 1); | |
2110 | two_source_ops = (*codep == 0x62) || (*codep == 0xc8); | |
2111 | ||
2112 | obufp = obuf; | |
2113 | ||
2114 | if ((prefixes & PREFIX_FWAIT) | |
2115 | && ((*codep < 0xd8) || (*codep > 0xdf))) | |
2116 | { | |
7d421014 ILT |
2117 | const char *name; |
2118 | ||
2119 | /* fwait not followed by floating point instruction. Print the | |
2120 | first prefix, which is probably fwait itself. */ | |
2121 | name = prefix_name (inbuf[0], orig_sizeflag); | |
2122 | if (name == NULL) | |
2123 | name = INTERNAL_DISASSEMBLER_ERROR; | |
2124 | (*info->fprintf_func) (info->stream, "%s", name); | |
2125 | return 1; | |
252b5132 RH |
2126 | } |
2127 | ||
252b5132 RH |
2128 | if (*codep == 0x0f) |
2129 | { | |
2130 | FETCH_DATA (info, codep + 2); | |
2131 | if (intel_syntax) | |
2132 | dp = &dis386_twobyte_intel[*++codep]; | |
2133 | else | |
2134 | dp = &dis386_twobyte_att[*++codep]; | |
2135 | need_modrm = twobyte_has_modrm[*codep]; | |
c608c12e | 2136 | uses_f3_prefix = twobyte_uses_f3_prefix[*codep]; |
252b5132 RH |
2137 | } |
2138 | else | |
2139 | { | |
2140 | if (intel_syntax) | |
2141 | dp = &dis386_intel[*codep]; | |
2142 | else | |
2143 | dp = &dis386_att[*codep]; | |
2144 | need_modrm = onebyte_has_modrm[*codep]; | |
c608c12e | 2145 | uses_f3_prefix = 0; |
252b5132 RH |
2146 | } |
2147 | codep++; | |
2148 | ||
c608c12e | 2149 | if (!uses_f3_prefix && (prefixes & PREFIX_REPZ)) |
7d421014 ILT |
2150 | { |
2151 | oappend ("repz "); | |
2152 | used_prefixes |= PREFIX_REPZ; | |
2153 | } | |
c608c12e | 2154 | if (prefixes & PREFIX_REPNZ) |
7d421014 ILT |
2155 | { |
2156 | oappend ("repnz "); | |
2157 | used_prefixes |= PREFIX_REPNZ; | |
2158 | } | |
c608c12e | 2159 | if (prefixes & PREFIX_LOCK) |
7d421014 ILT |
2160 | { |
2161 | oappend ("lock "); | |
2162 | used_prefixes |= PREFIX_LOCK; | |
2163 | } | |
c608c12e AM |
2164 | |
2165 | if (prefixes & PREFIX_DATA) | |
2166 | sizeflag ^= DFLAG; | |
2167 | ||
2168 | if (prefixes & PREFIX_ADDR) | |
2169 | { | |
2170 | sizeflag ^= AFLAG; | |
2171 | if (sizeflag & AFLAG) | |
2172 | oappend ("addr32 "); | |
2173 | else | |
2174 | oappend ("addr16 "); | |
7d421014 | 2175 | used_prefixes |= PREFIX_ADDR; |
c608c12e AM |
2176 | } |
2177 | ||
252b5132 RH |
2178 | if (need_modrm) |
2179 | { | |
2180 | FETCH_DATA (info, codep + 1); | |
2181 | mod = (*codep >> 6) & 3; | |
2182 | reg = (*codep >> 3) & 7; | |
2183 | rm = *codep & 7; | |
2184 | } | |
2185 | ||
2186 | if (dp->name == NULL && dp->bytemode1 == FLOATCODE) | |
2187 | { | |
2188 | dofloat (sizeflag); | |
2189 | } | |
2190 | else | |
2191 | { | |
2192 | if (dp->name == NULL) | |
c608c12e AM |
2193 | { |
2194 | switch(dp->bytemode2) | |
2195 | { | |
2196 | case USE_GROUPS: | |
2197 | dp = &grps[dp->bytemode1][reg]; | |
2198 | break; | |
2199 | case USE_PREFIX_USER_TABLE: | |
2200 | dp = &prefix_user_table[dp->bytemode1][prefixes & PREFIX_REPZ ? 1 : 0]; | |
7d421014 | 2201 | used_prefixes |= (prefixes & PREFIX_REPZ); |
c608c12e AM |
2202 | break; |
2203 | default: | |
2204 | oappend (INTERNAL_DISASSEMBLER_ERROR); | |
2205 | break; | |
2206 | } | |
2207 | } | |
252b5132 RH |
2208 | |
2209 | putop (dp->name, sizeflag); | |
2210 | ||
2211 | obufp = op1out; | |
2212 | op_ad = 2; | |
2213 | if (dp->op1) | |
2214 | (*dp->op1)(dp->bytemode1, sizeflag); | |
2215 | ||
2216 | obufp = op2out; | |
2217 | op_ad = 1; | |
2218 | if (dp->op2) | |
2219 | (*dp->op2)(dp->bytemode2, sizeflag); | |
2220 | ||
2221 | obufp = op3out; | |
2222 | op_ad = 0; | |
2223 | if (dp->op3) | |
2224 | (*dp->op3)(dp->bytemode3, sizeflag); | |
2225 | } | |
2226 | ||
7d421014 ILT |
2227 | /* See if any prefixes were not used. If so, print the first one |
2228 | separately. If we don't do this, we'll wind up printing an | |
2229 | instruction stream which does not precisely correspond to the | |
2230 | bytes we are disassembling. */ | |
2231 | if ((prefixes & ~used_prefixes) != 0) | |
2232 | { | |
2233 | const char *name; | |
2234 | ||
2235 | name = prefix_name (inbuf[0], orig_sizeflag); | |
2236 | if (name == NULL) | |
2237 | name = INTERNAL_DISASSEMBLER_ERROR; | |
2238 | (*info->fprintf_func) (info->stream, "%s", name); | |
2239 | return 1; | |
2240 | } | |
2241 | ||
252b5132 RH |
2242 | obufp = obuf + strlen (obuf); |
2243 | for (i = strlen (obuf); i < 6; i++) | |
2244 | oappend (" "); | |
2245 | oappend (" "); | |
2246 | (*info->fprintf_func) (info->stream, "%s", obuf); | |
2247 | ||
2248 | /* The enter and bound instructions are printed with operands in the same | |
2249 | order as the intel book; everything else is printed in reverse order. */ | |
2da11e11 | 2250 | if (intel_syntax || two_source_ops) |
252b5132 RH |
2251 | { |
2252 | first = op1out; | |
2253 | second = op2out; | |
2254 | third = op3out; | |
2255 | op_ad = op_index[0]; | |
2256 | op_index[0] = op_index[2]; | |
2257 | op_index[2] = op_ad; | |
2258 | } | |
2259 | else | |
2260 | { | |
2261 | first = op3out; | |
2262 | second = op2out; | |
2263 | third = op1out; | |
2264 | } | |
2265 | needcomma = 0; | |
2266 | if (*first) | |
2267 | { | |
2268 | if (op_index[0] != -1) | |
2269 | (*info->print_address_func) ((bfd_vma) op_address[op_index[0]], info); | |
2270 | else | |
2271 | (*info->fprintf_func) (info->stream, "%s", first); | |
2272 | needcomma = 1; | |
2273 | } | |
2274 | if (*second) | |
2275 | { | |
2276 | if (needcomma) | |
2277 | (*info->fprintf_func) (info->stream, ","); | |
2278 | if (op_index[1] != -1) | |
2279 | (*info->print_address_func) ((bfd_vma) op_address[op_index[1]], info); | |
2280 | else | |
2281 | (*info->fprintf_func) (info->stream, "%s", second); | |
2282 | needcomma = 1; | |
2283 | } | |
2284 | if (*third) | |
2285 | { | |
2286 | if (needcomma) | |
2287 | (*info->fprintf_func) (info->stream, ","); | |
2288 | if (op_index[2] != -1) | |
2289 | (*info->print_address_func) ((bfd_vma) op_address[op_index[2]], info); | |
2290 | else | |
2291 | (*info->fprintf_func) (info->stream, "%s", third); | |
2292 | } | |
2293 | return codep - inbuf; | |
2294 | } | |
2295 | ||
2da11e11 | 2296 | static const char *float_mem_att[] = { |
252b5132 RH |
2297 | /* d8 */ |
2298 | "fadds", | |
2299 | "fmuls", | |
2300 | "fcoms", | |
2301 | "fcomps", | |
2302 | "fsubs", | |
2303 | "fsubrs", | |
2304 | "fdivs", | |
2305 | "fdivrs", | |
2306 | /* d9 */ | |
2307 | "flds", | |
2308 | "(bad)", | |
2309 | "fsts", | |
2310 | "fstps", | |
2311 | "fldenv", | |
2312 | "fldcw", | |
2313 | "fNstenv", | |
2314 | "fNstcw", | |
2315 | /* da */ | |
2316 | "fiaddl", | |
2317 | "fimull", | |
2318 | "ficoml", | |
2319 | "ficompl", | |
2320 | "fisubl", | |
2321 | "fisubrl", | |
2322 | "fidivl", | |
2323 | "fidivrl", | |
2324 | /* db */ | |
2325 | "fildl", | |
2326 | "(bad)", | |
2327 | "fistl", | |
2328 | "fistpl", | |
2329 | "(bad)", | |
2330 | "fldt", | |
2331 | "(bad)", | |
2332 | "fstpt", | |
2333 | /* dc */ | |
2334 | "faddl", | |
2335 | "fmull", | |
2336 | "fcoml", | |
2337 | "fcompl", | |
2338 | "fsubl", | |
2339 | "fsubrl", | |
2340 | "fdivl", | |
2341 | "fdivrl", | |
2342 | /* dd */ | |
2343 | "fldl", | |
2344 | "(bad)", | |
2345 | "fstl", | |
2346 | "fstpl", | |
2347 | "frstor", | |
2348 | "(bad)", | |
2349 | "fNsave", | |
2350 | "fNstsw", | |
2351 | /* de */ | |
2352 | "fiadd", | |
2353 | "fimul", | |
2354 | "ficom", | |
2355 | "ficomp", | |
2356 | "fisub", | |
2357 | "fisubr", | |
2358 | "fidiv", | |
2359 | "fidivr", | |
2360 | /* df */ | |
2361 | "fild", | |
2362 | "(bad)", | |
2363 | "fist", | |
2364 | "fistp", | |
2365 | "fbld", | |
2366 | "fildll", | |
2367 | "fbstp", | |
2368 | "fistpll", | |
2369 | }; | |
2370 | ||
2da11e11 | 2371 | static const char *float_mem_intel[] = { |
252b5132 RH |
2372 | /* d8 */ |
2373 | "fadd", | |
2374 | "fmul", | |
2375 | "fcom", | |
2376 | "fcomp", | |
2377 | "fsub", | |
2378 | "fsubr", | |
2379 | "fdiv", | |
2380 | "fdivr", | |
2381 | /* d9 */ | |
2382 | "fld", | |
2383 | "(bad)", | |
2384 | "fst", | |
2385 | "fstp", | |
2386 | "fldenv", | |
2387 | "fldcw", | |
2388 | "fNstenv", | |
2389 | "fNstcw", | |
2390 | /* da */ | |
2391 | "fiadd", | |
2392 | "fimul", | |
2393 | "ficom", | |
2394 | "ficomp", | |
2395 | "fisub", | |
2396 | "fisubr", | |
2397 | "fidiv", | |
2398 | "fidivr", | |
2399 | /* db */ | |
2400 | "fild", | |
2401 | "(bad)", | |
2402 | "fist", | |
2403 | "fistp", | |
2404 | "(bad)", | |
2405 | "fld", | |
2406 | "(bad)", | |
2407 | "fstp", | |
2408 | /* dc */ | |
2409 | "fadd", | |
2410 | "fmul", | |
2411 | "fcom", | |
2412 | "fcomp", | |
2413 | "fsub", | |
2414 | "fsubr", | |
2415 | "fdiv", | |
2416 | "fdivr", | |
2417 | /* dd */ | |
2418 | "fld", | |
2419 | "(bad)", | |
2420 | "fst", | |
2421 | "fstp", | |
2422 | "frstor", | |
2423 | "(bad)", | |
2424 | "fNsave", | |
2425 | "fNstsw", | |
2426 | /* de */ | |
2427 | "fiadd", | |
2428 | "fimul", | |
2429 | "ficom", | |
2430 | "ficomp", | |
2431 | "fisub", | |
2432 | "fisubr", | |
2433 | "fidiv", | |
2434 | "fidivr", | |
2435 | /* df */ | |
2436 | "fild", | |
2437 | "(bad)", | |
2438 | "fist", | |
2439 | "fistp", | |
2440 | "fbld", | |
2441 | "fild", | |
2442 | "fbstp", | |
2443 | "fistpll", | |
2444 | }; | |
2445 | ||
2446 | #define ST OP_ST, 0 | |
2447 | #define STi OP_STi, 0 | |
2448 | ||
2449 | #define FGRPd9_2 NULL, NULL, 0 | |
2450 | #define FGRPd9_4 NULL, NULL, 1 | |
2451 | #define FGRPd9_5 NULL, NULL, 2 | |
2452 | #define FGRPd9_6 NULL, NULL, 3 | |
2453 | #define FGRPd9_7 NULL, NULL, 4 | |
2454 | #define FGRPda_5 NULL, NULL, 5 | |
2455 | #define FGRPdb_4 NULL, NULL, 6 | |
2456 | #define FGRPde_3 NULL, NULL, 7 | |
2457 | #define FGRPdf_4 NULL, NULL, 8 | |
2458 | ||
2da11e11 | 2459 | static const struct dis386 float_reg[][8] = { |
252b5132 RH |
2460 | /* d8 */ |
2461 | { | |
2462 | { "fadd", ST, STi }, | |
2463 | { "fmul", ST, STi }, | |
2464 | { "fcom", STi }, | |
2465 | { "fcomp", STi }, | |
2466 | { "fsub", ST, STi }, | |
2467 | { "fsubr", ST, STi }, | |
2468 | { "fdiv", ST, STi }, | |
2469 | { "fdivr", ST, STi }, | |
2470 | }, | |
2471 | /* d9 */ | |
2472 | { | |
2473 | { "fld", STi }, | |
2474 | { "fxch", STi }, | |
2475 | { FGRPd9_2 }, | |
2476 | { "(bad)" }, | |
2477 | { FGRPd9_4 }, | |
2478 | { FGRPd9_5 }, | |
2479 | { FGRPd9_6 }, | |
2480 | { FGRPd9_7 }, | |
2481 | }, | |
2482 | /* da */ | |
2483 | { | |
2484 | { "fcmovb", ST, STi }, | |
2485 | { "fcmove", ST, STi }, | |
2486 | { "fcmovbe",ST, STi }, | |
2487 | { "fcmovu", ST, STi }, | |
2488 | { "(bad)" }, | |
2489 | { FGRPda_5 }, | |
2490 | { "(bad)" }, | |
2491 | { "(bad)" }, | |
2492 | }, | |
2493 | /* db */ | |
2494 | { | |
2495 | { "fcmovnb",ST, STi }, | |
2496 | { "fcmovne",ST, STi }, | |
2497 | { "fcmovnbe",ST, STi }, | |
2498 | { "fcmovnu",ST, STi }, | |
2499 | { FGRPdb_4 }, | |
2500 | { "fucomi", ST, STi }, | |
2501 | { "fcomi", ST, STi }, | |
2502 | { "(bad)" }, | |
2503 | }, | |
2504 | /* dc */ | |
2505 | { | |
2506 | { "fadd", STi, ST }, | |
2507 | { "fmul", STi, ST }, | |
2508 | { "(bad)" }, | |
2509 | { "(bad)" }, | |
2510 | #if UNIXWARE_COMPAT | |
2511 | { "fsub", STi, ST }, | |
2512 | { "fsubr", STi, ST }, | |
2513 | { "fdiv", STi, ST }, | |
2514 | { "fdivr", STi, ST }, | |
2515 | #else | |
2516 | { "fsubr", STi, ST }, | |
2517 | { "fsub", STi, ST }, | |
2518 | { "fdivr", STi, ST }, | |
2519 | { "fdiv", STi, ST }, | |
2520 | #endif | |
2521 | }, | |
2522 | /* dd */ | |
2523 | { | |
2524 | { "ffree", STi }, | |
2525 | { "(bad)" }, | |
2526 | { "fst", STi }, | |
2527 | { "fstp", STi }, | |
2528 | { "fucom", STi }, | |
2529 | { "fucomp", STi }, | |
2530 | { "(bad)" }, | |
2531 | { "(bad)" }, | |
2532 | }, | |
2533 | /* de */ | |
2534 | { | |
2535 | { "faddp", STi, ST }, | |
2536 | { "fmulp", STi, ST }, | |
2537 | { "(bad)" }, | |
2538 | { FGRPde_3 }, | |
2539 | #if UNIXWARE_COMPAT | |
2540 | { "fsubp", STi, ST }, | |
2541 | { "fsubrp", STi, ST }, | |
2542 | { "fdivp", STi, ST }, | |
2543 | { "fdivrp", STi, ST }, | |
2544 | #else | |
2545 | { "fsubrp", STi, ST }, | |
2546 | { "fsubp", STi, ST }, | |
2547 | { "fdivrp", STi, ST }, | |
2548 | { "fdivp", STi, ST }, | |
2549 | #endif | |
2550 | }, | |
2551 | /* df */ | |
2552 | { | |
2553 | { "(bad)" }, | |
2554 | { "(bad)" }, | |
2555 | { "(bad)" }, | |
2556 | { "(bad)" }, | |
2557 | { FGRPdf_4 }, | |
2558 | { "fucomip",ST, STi }, | |
2559 | { "fcomip", ST, STi }, | |
2560 | { "(bad)" }, | |
2561 | }, | |
2562 | }; | |
2563 | ||
2564 | ||
2565 | static char *fgrps[][8] = { | |
2566 | /* d9_2 0 */ | |
2567 | { | |
2568 | "fnop","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", | |
2569 | }, | |
2570 | ||
2571 | /* d9_4 1 */ | |
2572 | { | |
2573 | "fchs","fabs","(bad)","(bad)","ftst","fxam","(bad)","(bad)", | |
2574 | }, | |
2575 | ||
2576 | /* d9_5 2 */ | |
2577 | { | |
2578 | "fld1","fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz","(bad)", | |
2579 | }, | |
2580 | ||
2581 | /* d9_6 3 */ | |
2582 | { | |
2583 | "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp","fincstp", | |
2584 | }, | |
2585 | ||
2586 | /* d9_7 4 */ | |
2587 | { | |
2588 | "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos", | |
2589 | }, | |
2590 | ||
2591 | /* da_5 5 */ | |
2592 | { | |
2593 | "(bad)","fucompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", | |
2594 | }, | |
2595 | ||
2596 | /* db_4 6 */ | |
2597 | { | |
2598 | "feni(287 only)","fdisi(287 only)","fNclex","fNinit", | |
2599 | "fNsetpm(287 only)","(bad)","(bad)","(bad)", | |
2600 | }, | |
2601 | ||
2602 | /* de_3 7 */ | |
2603 | { | |
2604 | "(bad)","fcompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", | |
2605 | }, | |
2606 | ||
2607 | /* df_4 8 */ | |
2608 | { | |
2609 | "fNstsw","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)", | |
2610 | }, | |
2611 | }; | |
2612 | ||
2613 | static void | |
2614 | dofloat (sizeflag) | |
2615 | int sizeflag; | |
2616 | { | |
2da11e11 | 2617 | const struct dis386 *dp; |
252b5132 RH |
2618 | unsigned char floatop; |
2619 | ||
2620 | floatop = codep[-1]; | |
2621 | ||
2622 | if (mod != 3) | |
2623 | { | |
2624 | if (intel_syntax) | |
2625 | putop (float_mem_intel[(floatop - 0xd8 ) * 8 + reg], sizeflag); | |
2626 | else | |
2627 | putop (float_mem_att[(floatop - 0xd8 ) * 8 + reg], sizeflag); | |
2628 | obufp = op1out; | |
2629 | if (floatop == 0xdb) | |
2630 | OP_E (x_mode, sizeflag); | |
2631 | else if (floatop == 0xdd) | |
2632 | OP_E (d_mode, sizeflag); | |
2da11e11 | 2633 | else |
252b5132 RH |
2634 | OP_E (v_mode, sizeflag); |
2635 | return; | |
2636 | } | |
2637 | codep++; | |
2638 | ||
2639 | dp = &float_reg[floatop - 0xd8][reg]; | |
2640 | if (dp->name == NULL) | |
2641 | { | |
2642 | putop (fgrps[dp->bytemode1][rm], sizeflag); | |
2643 | ||
2644 | /* instruction fnstsw is only one with strange arg */ | |
2645 | if (floatop == 0xdf && codep[-1] == 0xe0) | |
2646 | strcpy (op1out, names16[0]); | |
2647 | } | |
2648 | else | |
2649 | { | |
2650 | putop (dp->name, sizeflag); | |
2651 | ||
2652 | obufp = op1out; | |
2653 | if (dp->op1) | |
2654 | (*dp->op1)(dp->bytemode1, sizeflag); | |
2655 | obufp = op2out; | |
2656 | if (dp->op2) | |
2657 | (*dp->op2)(dp->bytemode2, sizeflag); | |
2658 | } | |
2659 | } | |
2660 | ||
2661 | /* ARGSUSED */ | |
2662 | static void | |
2663 | OP_ST (ignore, sizeflag) | |
2664 | int ignore; | |
2665 | int sizeflag; | |
2666 | { | |
2667 | oappend ("%st"); | |
2668 | } | |
2669 | ||
2670 | /* ARGSUSED */ | |
2671 | static void | |
2672 | OP_STi (ignore, sizeflag) | |
2673 | int ignore; | |
2674 | int sizeflag; | |
2675 | { | |
2676 | sprintf (scratchbuf, "%%st(%d)", rm); | |
2677 | oappend (scratchbuf); | |
2678 | } | |
2679 | ||
2680 | ||
2681 | /* capital letters in template are macros */ | |
2682 | static void | |
2683 | putop (template, sizeflag) | |
2da11e11 | 2684 | const char *template; |
252b5132 RH |
2685 | int sizeflag; |
2686 | { | |
2da11e11 | 2687 | const char *p; |
252b5132 RH |
2688 | |
2689 | for (p = template; *p; p++) | |
2690 | { | |
2691 | switch (*p) | |
2692 | { | |
2693 | default: | |
2694 | *obufp++ = *p; | |
2695 | break; | |
2696 | case 'A': | |
2697 | if (intel_syntax) | |
2698 | break; | |
2699 | if (mod != 3 | |
2700 | #ifdef SUFFIX_ALWAYS | |
2701 | || (sizeflag & SUFFIX_ALWAYS) | |
2702 | #endif | |
2703 | ) | |
2704 | *obufp++ = 'b'; | |
2705 | break; | |
2706 | case 'B': | |
2707 | if (intel_syntax) | |
2708 | break; | |
2709 | #ifdef SUFFIX_ALWAYS | |
2710 | if (sizeflag & SUFFIX_ALWAYS) | |
2711 | *obufp++ = 'b'; | |
2712 | #endif | |
2713 | break; | |
2714 | case 'E': /* For jcxz/jecxz */ | |
2715 | if (sizeflag & AFLAG) | |
2716 | *obufp++ = 'e'; | |
2717 | break; | |
2718 | case 'L': | |
2719 | if (intel_syntax) | |
2720 | break; | |
2721 | #ifdef SUFFIX_ALWAYS | |
2722 | if (sizeflag & SUFFIX_ALWAYS) | |
2723 | *obufp++ = 'l'; | |
2724 | #endif | |
2725 | break; | |
2726 | case 'N': | |
2727 | if ((prefixes & PREFIX_FWAIT) == 0) | |
2728 | *obufp++ = 'n'; | |
7d421014 ILT |
2729 | else |
2730 | used_prefixes |= PREFIX_FWAIT; | |
252b5132 RH |
2731 | break; |
2732 | case 'P': | |
2733 | if (intel_syntax) | |
2734 | break; | |
2735 | if ((prefixes & PREFIX_DATA) | |
2736 | #ifdef SUFFIX_ALWAYS | |
2737 | || (sizeflag & SUFFIX_ALWAYS) | |
2738 | #endif | |
2739 | ) | |
2740 | { | |
2741 | if (sizeflag & DFLAG) | |
2742 | *obufp++ = 'l'; | |
2743 | else | |
2744 | *obufp++ = 'w'; | |
7d421014 | 2745 | used_prefixes |= (prefixes & PREFIX_DATA); |
252b5132 RH |
2746 | } |
2747 | break; | |
2748 | case 'Q': | |
2749 | if (intel_syntax) | |
2750 | break; | |
2751 | if (mod != 3 | |
2752 | #ifdef SUFFIX_ALWAYS | |
2753 | || (sizeflag & SUFFIX_ALWAYS) | |
2754 | #endif | |
2755 | ) | |
2756 | { | |
2757 | if (sizeflag & DFLAG) | |
2758 | *obufp++ = 'l'; | |
2759 | else | |
2760 | *obufp++ = 'w'; | |
7d421014 | 2761 | used_prefixes |= (prefixes & PREFIX_DATA); |
252b5132 RH |
2762 | } |
2763 | break; | |
2764 | case 'R': | |
2765 | if (intel_syntax) | |
c608c12e AM |
2766 | { |
2767 | if (sizeflag & DFLAG) | |
2768 | { | |
2769 | *obufp++ = 'd'; | |
2770 | *obufp++ = 'q'; | |
2771 | } | |
2772 | else | |
2773 | { | |
2774 | *obufp++ = 'w'; | |
2775 | *obufp++ = 'd'; | |
2776 | } | |
2777 | } | |
252b5132 | 2778 | else |
c608c12e AM |
2779 | { |
2780 | if (sizeflag & DFLAG) | |
2781 | *obufp++ = 'l'; | |
2782 | else | |
2783 | *obufp++ = 'w'; | |
2784 | } | |
7d421014 | 2785 | used_prefixes |= (prefixes & PREFIX_DATA); |
252b5132 RH |
2786 | break; |
2787 | case 'S': | |
2788 | if (intel_syntax) | |
2789 | break; | |
2790 | #ifdef SUFFIX_ALWAYS | |
2791 | if (sizeflag & SUFFIX_ALWAYS) | |
2792 | { | |
2793 | if (sizeflag & DFLAG) | |
2794 | *obufp++ = 'l'; | |
2795 | else | |
2796 | *obufp++ = 'w'; | |
7d421014 | 2797 | used_prefixes |= (prefixes & PREFIX_DATA); |
252b5132 RH |
2798 | } |
2799 | #endif | |
2800 | break; | |
2801 | case 'W': | |
252b5132 RH |
2802 | /* operand size flag for cwtl, cbtw */ |
2803 | if (sizeflag & DFLAG) | |
2804 | *obufp++ = 'w'; | |
2805 | else | |
2806 | *obufp++ = 'b'; | |
c608c12e AM |
2807 | if (intel_syntax) |
2808 | { | |
2809 | if (sizeflag & DFLAG) | |
2810 | { | |
2811 | *obufp++ = 'd'; | |
2812 | *obufp++ = 'e'; | |
2813 | } | |
2814 | else | |
2815 | { | |
2816 | *obufp++ = 'w'; | |
2817 | } | |
2818 | } | |
7d421014 | 2819 | used_prefixes |= (prefixes & PREFIX_DATA); |
252b5132 RH |
2820 | break; |
2821 | } | |
2822 | } | |
2823 | *obufp = 0; | |
2824 | } | |
2825 | ||
2826 | static void | |
2827 | oappend (s) | |
2da11e11 | 2828 | const char *s; |
252b5132 RH |
2829 | { |
2830 | strcpy (obufp, s); | |
2831 | obufp += strlen (s); | |
2832 | } | |
2833 | ||
2834 | static void | |
2835 | append_seg () | |
2836 | { | |
2837 | if (prefixes & PREFIX_CS) | |
7d421014 ILT |
2838 | { |
2839 | oappend ("%cs:"); | |
2840 | used_prefixes |= PREFIX_CS; | |
2841 | } | |
252b5132 | 2842 | if (prefixes & PREFIX_DS) |
7d421014 ILT |
2843 | { |
2844 | oappend ("%ds:"); | |
2845 | used_prefixes |= PREFIX_DS; | |
2846 | } | |
252b5132 | 2847 | if (prefixes & PREFIX_SS) |
7d421014 ILT |
2848 | { |
2849 | oappend ("%ss:"); | |
2850 | used_prefixes |= PREFIX_SS; | |
2851 | } | |
252b5132 | 2852 | if (prefixes & PREFIX_ES) |
7d421014 ILT |
2853 | { |
2854 | oappend ("%es:"); | |
2855 | used_prefixes |= PREFIX_ES; | |
2856 | } | |
252b5132 | 2857 | if (prefixes & PREFIX_FS) |
7d421014 ILT |
2858 | { |
2859 | oappend ("%fs:"); | |
2860 | used_prefixes |= PREFIX_FS; | |
2861 | } | |
252b5132 | 2862 | if (prefixes & PREFIX_GS) |
7d421014 ILT |
2863 | { |
2864 | oappend ("%gs:"); | |
2865 | used_prefixes |= PREFIX_GS; | |
2866 | } | |
252b5132 RH |
2867 | } |
2868 | ||
2869 | static void | |
2870 | OP_indirE (bytemode, sizeflag) | |
2871 | int bytemode; | |
2872 | int sizeflag; | |
2873 | { | |
2874 | if (!intel_syntax) | |
2875 | oappend ("*"); | |
2876 | OP_E (bytemode, sizeflag); | |
2877 | } | |
2878 | ||
2879 | static void | |
2880 | OP_E (bytemode, sizeflag) | |
2881 | int bytemode; | |
2882 | int sizeflag; | |
2883 | { | |
2884 | int disp; | |
2885 | ||
2886 | /* skip mod/rm byte */ | |
2887 | codep++; | |
2888 | ||
2889 | if (mod == 3) | |
2890 | { | |
2891 | switch (bytemode) | |
2892 | { | |
2893 | case b_mode: | |
2894 | oappend (names8[rm]); | |
2895 | break; | |
2896 | case w_mode: | |
2897 | oappend (names16[rm]); | |
2898 | break; | |
2da11e11 AM |
2899 | case d_mode: |
2900 | oappend (names32[rm]); | |
2901 | break; | |
252b5132 RH |
2902 | case v_mode: |
2903 | if (sizeflag & DFLAG) | |
2904 | oappend (names32[rm]); | |
2905 | else | |
2906 | oappend (names16[rm]); | |
7d421014 | 2907 | used_prefixes |= (prefixes & PREFIX_DATA); |
252b5132 | 2908 | break; |
2da11e11 AM |
2909 | case 0: |
2910 | if ( !(codep[-2] == 0xAE && codep[-1] == 0xF8 /* sfence */)) | |
2911 | BadOp(); /* bad sfence,lea,lds,les,lfs,lgs,lss modrm */ | |
c608c12e | 2912 | break; |
252b5132 | 2913 | default: |
c608c12e | 2914 | oappend (INTERNAL_DISASSEMBLER_ERROR); |
252b5132 RH |
2915 | break; |
2916 | } | |
2917 | return; | |
2918 | } | |
2919 | ||
2920 | disp = 0; | |
2921 | append_seg (); | |
2922 | ||
2923 | if (sizeflag & AFLAG) /* 32 bit address mode */ | |
2924 | { | |
2925 | int havesib; | |
2926 | int havebase; | |
2927 | int base; | |
2928 | int index = 0; | |
2929 | int scale = 0; | |
2930 | ||
2931 | havesib = 0; | |
2932 | havebase = 1; | |
2933 | base = rm; | |
2934 | ||
2935 | if (base == 4) | |
2936 | { | |
2937 | havesib = 1; | |
2938 | FETCH_DATA (the_info, codep + 1); | |
2939 | scale = (*codep >> 6) & 3; | |
2940 | index = (*codep >> 3) & 7; | |
2941 | base = *codep & 7; | |
2942 | codep++; | |
2943 | } | |
2944 | ||
2945 | switch (mod) | |
2946 | { | |
2947 | case 0: | |
2948 | if (base == 5) | |
2949 | { | |
2950 | havebase = 0; | |
2951 | disp = get32 (); | |
2952 | } | |
2953 | break; | |
2954 | case 1: | |
2955 | FETCH_DATA (the_info, codep + 1); | |
2956 | disp = *codep++; | |
2957 | if ((disp & 0x80) != 0) | |
2958 | disp -= 0x100; | |
2959 | break; | |
2960 | case 2: | |
2961 | disp = get32 (); | |
2962 | break; | |
2963 | } | |
2964 | ||
2965 | if (!intel_syntax) | |
2966 | if (mod != 0 || base == 5) | |
2967 | { | |
2968 | sprintf (scratchbuf, "0x%x", disp); | |
2969 | oappend (scratchbuf); | |
2970 | } | |
2da11e11 | 2971 | |
252b5132 RH |
2972 | if (havebase || (havesib && (index != 4 || scale != 0))) |
2973 | { | |
2974 | if (intel_syntax) | |
2975 | { | |
2976 | switch (bytemode) | |
2977 | { | |
2978 | case b_mode: | |
2979 | oappend("BYTE PTR "); | |
2980 | break; | |
2981 | case w_mode: | |
2982 | oappend("WORD PTR "); | |
2983 | break; | |
2984 | case v_mode: | |
2985 | oappend("DWORD PTR "); | |
2986 | break; | |
2987 | case d_mode: | |
2988 | oappend("QWORD PTR "); | |
2989 | break; | |
2990 | case x_mode: | |
2991 | oappend("XWORD PTR "); | |
2992 | break; | |
2993 | default: | |
2994 | break; | |
2995 | } | |
2996 | } | |
2997 | *obufp++ = open_char; | |
2998 | *obufp = '\0'; | |
2999 | if (havebase) | |
3000 | oappend (names32[base]); | |
3001 | if (havesib) | |
3002 | { | |
3003 | if (index != 4) | |
3004 | { | |
3005 | if (intel_syntax) | |
3006 | { | |
3007 | if (havebase) | |
3008 | { | |
3009 | *obufp++ = separator_char; | |
3010 | *obufp = '\0'; | |
3011 | } | |
3012 | sprintf (scratchbuf, "%s", names32[index]); | |
3013 | } | |
3014 | else | |
3015 | sprintf (scratchbuf, ",%s", names32[index]); | |
3016 | oappend (scratchbuf); | |
3017 | } | |
3018 | if (!intel_syntax | |
2da11e11 | 3019 | || (intel_syntax |
252b5132 RH |
3020 | && bytemode != b_mode |
3021 | && bytemode != w_mode | |
3022 | && bytemode != v_mode)) | |
3023 | { | |
3024 | *obufp++ = scale_char; | |
3025 | *obufp = '\0'; | |
3026 | sprintf (scratchbuf, "%d", 1 << scale); | |
3027 | oappend (scratchbuf); | |
3028 | } | |
3029 | } | |
3030 | if (intel_syntax) | |
3031 | if (mod != 0 || base == 5) | |
3032 | { | |
3033 | /* Don't print zero displacements */ | |
3034 | if (disp > 0) | |
3035 | { | |
3036 | sprintf (scratchbuf, "+%d", disp); | |
3037 | oappend (scratchbuf); | |
3038 | } | |
3039 | else if (disp < 0) | |
3040 | { | |
3041 | sprintf (scratchbuf, "%d", disp); | |
3042 | oappend (scratchbuf); | |
3043 | } | |
3044 | } | |
3045 | ||
3046 | *obufp++ = close_char; | |
3047 | *obufp = '\0'; | |
3048 | } | |
3049 | else if (intel_syntax) | |
3050 | { | |
3051 | if (mod != 0 || base == 5) | |
3052 | { | |
3053 | if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS | |
3054 | | PREFIX_ES | PREFIX_FS | PREFIX_GS)) | |
3055 | ; | |
3056 | else | |
3057 | { | |
3058 | oappend (names_seg[3]); | |
3059 | oappend (":"); | |
3060 | } | |
3061 | sprintf (scratchbuf, "0x%x", disp); | |
3062 | oappend (scratchbuf); | |
3063 | } | |
3064 | } | |
3065 | } | |
3066 | else | |
3067 | { /* 16 bit address mode */ | |
3068 | switch (mod) | |
3069 | { | |
3070 | case 0: | |
3071 | if (rm == 6) | |
3072 | { | |
3073 | disp = get16 (); | |
3074 | if ((disp & 0x8000) != 0) | |
3075 | disp -= 0x10000; | |
3076 | } | |
3077 | break; | |
3078 | case 1: | |
3079 | FETCH_DATA (the_info, codep + 1); | |
3080 | disp = *codep++; | |
3081 | if ((disp & 0x80) != 0) | |
3082 | disp -= 0x100; | |
3083 | break; | |
3084 | case 2: | |
3085 | disp = get16 (); | |
3086 | if ((disp & 0x8000) != 0) | |
3087 | disp -= 0x10000; | |
3088 | break; | |
3089 | } | |
3090 | ||
3091 | if (!intel_syntax) | |
3092 | if (mod != 0 || rm == 6) | |
3093 | { | |
3094 | sprintf (scratchbuf, "%d", disp); | |
3095 | oappend (scratchbuf); | |
3096 | } | |
3097 | ||
3098 | if (mod != 0 || rm != 6) | |
3099 | { | |
3100 | *obufp++ = open_char; | |
3101 | *obufp = '\0'; | |
3102 | oappend (index16[rm]); | |
3103 | *obufp++ = close_char; | |
3104 | *obufp = '\0'; | |
3105 | } | |
3106 | } | |
3107 | } | |
3108 | ||
252b5132 RH |
3109 | static void |
3110 | OP_G (bytemode, sizeflag) | |
3111 | int bytemode; | |
3112 | int sizeflag; | |
3113 | { | |
3114 | switch (bytemode) | |
3115 | { | |
3116 | case b_mode: | |
3117 | oappend (names8[reg]); | |
3118 | break; | |
3119 | case w_mode: | |
3120 | oappend (names16[reg]); | |
3121 | break; | |
3122 | case d_mode: | |
3123 | oappend (names32[reg]); | |
3124 | break; | |
3125 | case v_mode: | |
3126 | if (sizeflag & DFLAG) | |
3127 | oappend (names32[reg]); | |
3128 | else | |
3129 | oappend (names16[reg]); | |
7d421014 | 3130 | used_prefixes |= (prefixes & PREFIX_DATA); |
252b5132 RH |
3131 | break; |
3132 | default: | |
3133 | oappend (INTERNAL_DISASSEMBLER_ERROR); | |
3134 | break; | |
3135 | } | |
3136 | } | |
3137 | ||
3138 | static int | |
3139 | get32 () | |
3140 | { | |
3141 | int x = 0; | |
3142 | ||
3143 | FETCH_DATA (the_info, codep + 4); | |
3144 | x = *codep++ & 0xff; | |
3145 | x |= (*codep++ & 0xff) << 8; | |
3146 | x |= (*codep++ & 0xff) << 16; | |
3147 | x |= (*codep++ & 0xff) << 24; | |
3148 | return x; | |
3149 | } | |
3150 | ||
3151 | static int | |
3152 | get16 () | |
3153 | { | |
3154 | int x = 0; | |
3155 | ||
3156 | FETCH_DATA (the_info, codep + 2); | |
3157 | x = *codep++ & 0xff; | |
3158 | x |= (*codep++ & 0xff) << 8; | |
3159 | return x; | |
3160 | } | |
3161 | ||
3162 | static void | |
3163 | set_op (op) | |
3164 | unsigned int op; | |
3165 | { | |
3166 | op_index[op_ad] = op_ad; | |
3167 | op_address[op_ad] = op; | |
3168 | } | |
3169 | ||
3170 | static void | |
3171 | OP_REG (code, sizeflag) | |
3172 | int code; | |
3173 | int sizeflag; | |
3174 | { | |
2da11e11 | 3175 | const char *s; |
252b5132 RH |
3176 | |
3177 | switch (code) | |
3178 | { | |
3179 | case indir_dx_reg: | |
3180 | s = "(%dx)"; | |
3181 | break; | |
3182 | case ax_reg: case cx_reg: case dx_reg: case bx_reg: | |
3183 | case sp_reg: case bp_reg: case si_reg: case di_reg: | |
3184 | s = names16[code - ax_reg]; | |
3185 | break; | |
3186 | case es_reg: case ss_reg: case cs_reg: | |
3187 | case ds_reg: case fs_reg: case gs_reg: | |
3188 | s = names_seg[code - es_reg]; | |
3189 | break; | |
3190 | case al_reg: case ah_reg: case cl_reg: case ch_reg: | |
3191 | case dl_reg: case dh_reg: case bl_reg: case bh_reg: | |
3192 | s = names8[code - al_reg]; | |
3193 | break; | |
3194 | case eAX_reg: case eCX_reg: case eDX_reg: case eBX_reg: | |
3195 | case eSP_reg: case eBP_reg: case eSI_reg: case eDI_reg: | |
3196 | if (sizeflag & DFLAG) | |
3197 | s = names32[code - eAX_reg]; | |
3198 | else | |
3199 | s = names16[code - eAX_reg]; | |
7d421014 | 3200 | used_prefixes |= (prefixes & PREFIX_DATA); |
252b5132 RH |
3201 | break; |
3202 | default: | |
3203 | s = INTERNAL_DISASSEMBLER_ERROR; | |
3204 | break; | |
3205 | } | |
3206 | oappend (s); | |
3207 | } | |
3208 | ||
3209 | static void | |
3210 | OP_I (bytemode, sizeflag) | |
3211 | int bytemode; | |
3212 | int sizeflag; | |
3213 | { | |
3214 | int op; | |
3215 | ||
3216 | switch (bytemode) | |
3217 | { | |
3218 | case b_mode: | |
3219 | FETCH_DATA (the_info, codep + 1); | |
3220 | op = *codep++ & 0xff; | |
3221 | break; | |
3222 | case v_mode: | |
3223 | if (sizeflag & DFLAG) | |
3224 | op = get32 (); | |
3225 | else | |
3226 | op = get16 (); | |
7d421014 | 3227 | used_prefixes |= (prefixes & PREFIX_DATA); |
252b5132 RH |
3228 | break; |
3229 | case w_mode: | |
3230 | op = get16 (); | |
3231 | break; | |
3232 | default: | |
3233 | oappend (INTERNAL_DISASSEMBLER_ERROR); | |
3234 | return; | |
3235 | } | |
3236 | ||
3237 | if (intel_syntax) | |
3238 | sprintf (scratchbuf, "0x%x", op); | |
3239 | else | |
3240 | sprintf (scratchbuf, "$0x%x", op); | |
3241 | oappend (scratchbuf); | |
3242 | scratchbuf[0] = '\0'; | |
3243 | } | |
3244 | ||
3245 | static void | |
3246 | OP_sI (bytemode, sizeflag) | |
3247 | int bytemode; | |
3248 | int sizeflag; | |
3249 | { | |
3250 | int op; | |
3251 | ||
3252 | switch (bytemode) | |
3253 | { | |
3254 | case b_mode: | |
3255 | FETCH_DATA (the_info, codep + 1); | |
3256 | op = *codep++; | |
3257 | if ((op & 0x80) != 0) | |
3258 | op -= 0x100; | |
3259 | break; | |
3260 | case v_mode: | |
3261 | if (sizeflag & DFLAG) | |
3262 | op = get32 (); | |
3263 | else | |
3264 | { | |
3265 | op = get16(); | |
3266 | if ((op & 0x8000) != 0) | |
3267 | op -= 0x10000; | |
3268 | } | |
7d421014 | 3269 | used_prefixes |= (prefixes & PREFIX_DATA); |
252b5132 RH |
3270 | break; |
3271 | case w_mode: | |
3272 | op = get16 (); | |
3273 | if ((op & 0x8000) != 0) | |
3274 | op -= 0x10000; | |
3275 | break; | |
3276 | default: | |
3277 | oappend (INTERNAL_DISASSEMBLER_ERROR); | |
3278 | return; | |
3279 | } | |
3280 | if (intel_syntax) | |
3281 | sprintf (scratchbuf, "%d", op); | |
3282 | else | |
3283 | sprintf (scratchbuf, "$0x%x", op); | |
3284 | oappend (scratchbuf); | |
3285 | } | |
3286 | ||
3287 | static void | |
3288 | OP_J (bytemode, sizeflag) | |
3289 | int bytemode; | |
3290 | int sizeflag; | |
3291 | { | |
3292 | int disp; | |
3293 | int mask = -1; | |
3294 | ||
3295 | switch (bytemode) | |
3296 | { | |
3297 | case b_mode: | |
3298 | FETCH_DATA (the_info, codep + 1); | |
3299 | disp = *codep++; | |
3300 | if ((disp & 0x80) != 0) | |
3301 | disp -= 0x100; | |
3302 | break; | |
3303 | case v_mode: | |
3304 | if (sizeflag & DFLAG) | |
3305 | disp = get32 (); | |
3306 | else | |
3307 | { | |
3308 | disp = get16 (); | |
3309 | /* for some reason, a data16 prefix on a jump instruction | |
3310 | means that the pc is masked to 16 bits after the | |
3311 | displacement is added! */ | |
3312 | mask = 0xffff; | |
3313 | } | |
7d421014 | 3314 | used_prefixes |= (prefixes & PREFIX_DATA); |
252b5132 RH |
3315 | break; |
3316 | default: | |
3317 | oappend (INTERNAL_DISASSEMBLER_ERROR); | |
3318 | return; | |
3319 | } | |
3320 | disp = (start_pc + codep - start_codep + disp) & mask; | |
3321 | set_op (disp); | |
3322 | sprintf (scratchbuf, "0x%x", disp); | |
3323 | oappend (scratchbuf); | |
3324 | } | |
3325 | ||
3326 | /* ARGSUSED */ | |
3327 | static void | |
3328 | OP_SEG (dummy, sizeflag) | |
3329 | int dummy; | |
3330 | int sizeflag; | |
3331 | { | |
3332 | static char *sreg[] = { | |
3333 | "%es","%cs","%ss","%ds","%fs","%gs","%?","%?", | |
3334 | }; | |
3335 | ||
3336 | oappend (sreg[reg]); | |
3337 | } | |
3338 | ||
c608c12e | 3339 | /* ARGSUSED */ |
252b5132 | 3340 | static void |
c608c12e AM |
3341 | OP_DIR (dummy, sizeflag) |
3342 | int dummy; | |
252b5132 RH |
3343 | int sizeflag; |
3344 | { | |
3345 | int seg, offset; | |
3346 | ||
c608c12e | 3347 | if (sizeflag & DFLAG) |
252b5132 | 3348 | { |
c608c12e AM |
3349 | offset = get32 (); |
3350 | seg = get16 (); | |
252b5132 | 3351 | } |
c608c12e AM |
3352 | else |
3353 | { | |
3354 | offset = get16 (); | |
3355 | seg = get16 (); | |
3356 | } | |
7d421014 | 3357 | used_prefixes |= (prefixes & PREFIX_DATA); |
c608c12e AM |
3358 | sprintf (scratchbuf, "$0x%x,$0x%x", seg, offset); |
3359 | oappend (scratchbuf); | |
252b5132 RH |
3360 | } |
3361 | ||
3362 | /* ARGSUSED */ | |
3363 | static void | |
3364 | OP_OFF (ignore, sizeflag) | |
3365 | int ignore; | |
3366 | int sizeflag; | |
3367 | { | |
3368 | int off; | |
3369 | ||
3370 | append_seg (); | |
3371 | ||
3372 | if (sizeflag & AFLAG) | |
3373 | off = get32 (); | |
3374 | else | |
3375 | off = get16 (); | |
3376 | ||
3377 | if (intel_syntax) | |
3378 | { | |
3379 | if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS | |
3380 | | PREFIX_ES | PREFIX_FS | PREFIX_GS))) | |
3381 | { | |
3382 | oappend (names_seg[3]); | |
3383 | oappend (":"); | |
3384 | } | |
3385 | } | |
3386 | sprintf (scratchbuf, "0x%x", off); | |
3387 | oappend (scratchbuf); | |
3388 | } | |
3389 | ||
3390 | static void | |
3391 | ptr_reg (code, sizeflag) | |
3392 | int code; | |
3393 | int sizeflag; | |
3394 | { | |
2da11e11 | 3395 | const char *s; |
252b5132 RH |
3396 | oappend ("("); |
3397 | if (sizeflag & AFLAG) | |
3398 | s = names32[code - eAX_reg]; | |
3399 | else | |
3400 | s = names16[code - eAX_reg]; | |
3401 | oappend (s); | |
3402 | oappend (")"); | |
3403 | } | |
3404 | ||
3405 | static void | |
3406 | OP_ESreg (code, sizeflag) | |
3407 | int code; | |
3408 | int sizeflag; | |
3409 | { | |
3410 | oappend ("%es:"); | |
3411 | ptr_reg (code, sizeflag); | |
3412 | } | |
3413 | ||
3414 | static void | |
3415 | OP_DSreg (code, sizeflag) | |
3416 | int code; | |
3417 | int sizeflag; | |
3418 | { | |
3419 | if ((prefixes | |
3420 | & (PREFIX_CS | |
3421 | | PREFIX_DS | |
3422 | | PREFIX_SS | |
3423 | | PREFIX_ES | |
3424 | | PREFIX_FS | |
3425 | | PREFIX_GS)) == 0) | |
3426 | prefixes |= PREFIX_DS; | |
3427 | append_seg(); | |
3428 | ptr_reg (code, sizeflag); | |
3429 | } | |
3430 | ||
252b5132 RH |
3431 | /* ARGSUSED */ |
3432 | static void | |
3433 | OP_C (dummy, sizeflag) | |
3434 | int dummy; | |
3435 | int sizeflag; | |
3436 | { | |
252b5132 RH |
3437 | sprintf (scratchbuf, "%%cr%d", reg); |
3438 | oappend (scratchbuf); | |
3439 | } | |
3440 | ||
3441 | /* ARGSUSED */ | |
3442 | static void | |
3443 | OP_D (dummy, sizeflag) | |
3444 | int dummy; | |
3445 | int sizeflag; | |
3446 | { | |
252b5132 RH |
3447 | sprintf (scratchbuf, "%%db%d", reg); |
3448 | oappend (scratchbuf); | |
3449 | } | |
3450 | ||
3451 | /* ARGSUSED */ | |
3452 | static void | |
3453 | OP_T (dummy, sizeflag) | |
3454 | int dummy; | |
3455 | int sizeflag; | |
3456 | { | |
252b5132 RH |
3457 | sprintf (scratchbuf, "%%tr%d", reg); |
3458 | oappend (scratchbuf); | |
3459 | } | |
3460 | ||
3461 | static void | |
2da11e11 | 3462 | OP_Rd (bytemode, sizeflag) |
252b5132 RH |
3463 | int bytemode; |
3464 | int sizeflag; | |
3465 | { | |
2da11e11 AM |
3466 | if (mod == 3) |
3467 | OP_E (bytemode, sizeflag); | |
3468 | else | |
3469 | BadOp(); | |
252b5132 RH |
3470 | } |
3471 | ||
3472 | static void | |
3473 | OP_MMX (ignore, sizeflag) | |
3474 | int ignore; | |
3475 | int sizeflag; | |
3476 | { | |
3477 | sprintf (scratchbuf, "%%mm%d", reg); | |
3478 | oappend (scratchbuf); | |
3479 | } | |
3480 | ||
c608c12e AM |
3481 | static void |
3482 | OP_XMM (bytemode, sizeflag) | |
3483 | int bytemode; | |
3484 | int sizeflag; | |
3485 | { | |
3486 | sprintf (scratchbuf, "%%xmm%d", reg); | |
3487 | oappend (scratchbuf); | |
3488 | } | |
3489 | ||
252b5132 RH |
3490 | static void |
3491 | OP_EM (bytemode, sizeflag) | |
3492 | int bytemode; | |
3493 | int sizeflag; | |
3494 | { | |
3495 | if (mod != 3) | |
3496 | { | |
3497 | OP_E (bytemode, sizeflag); | |
3498 | return; | |
3499 | } | |
3500 | ||
3501 | codep++; | |
3502 | sprintf (scratchbuf, "%%mm%d", rm); | |
3503 | oappend (scratchbuf); | |
3504 | } | |
3505 | ||
c608c12e AM |
3506 | static void |
3507 | OP_EX (bytemode, sizeflag) | |
3508 | int bytemode; | |
3509 | int sizeflag; | |
3510 | { | |
3511 | if (mod != 3) | |
3512 | { | |
3513 | OP_E (bytemode, sizeflag); | |
3514 | return; | |
3515 | } | |
3516 | ||
3517 | codep++; | |
3518 | sprintf (scratchbuf, "%%xmm%d", rm); | |
3519 | oappend (scratchbuf); | |
3520 | } | |
3521 | ||
252b5132 | 3522 | static void |
2da11e11 AM |
3523 | OP_MS (bytemode, sizeflag) |
3524 | int bytemode; | |
252b5132 RH |
3525 | int sizeflag; |
3526 | { | |
2da11e11 AM |
3527 | if (mod == 3) |
3528 | OP_EM (bytemode, sizeflag); | |
3529 | else | |
3530 | BadOp(); | |
252b5132 RH |
3531 | } |
3532 | ||
3533 | static const char *Suffix3DNow[] = { | |
3534 | /* 00 */ NULL, NULL, NULL, NULL, | |
3535 | /* 04 */ NULL, NULL, NULL, NULL, | |
3536 | /* 08 */ NULL, NULL, NULL, NULL, | |
3537 | /* 0C */ NULL, "pi2fd", NULL, NULL, | |
3538 | /* 10 */ NULL, NULL, NULL, NULL, | |
3539 | /* 14 */ NULL, NULL, NULL, NULL, | |
3540 | /* 18 */ NULL, NULL, NULL, NULL, | |
3541 | /* 1C */ NULL, "pf2id", NULL, NULL, | |
3542 | /* 20 */ NULL, NULL, NULL, NULL, | |
3543 | /* 24 */ NULL, NULL, NULL, NULL, | |
3544 | /* 28 */ NULL, NULL, NULL, NULL, | |
3545 | /* 2C */ NULL, NULL, NULL, NULL, | |
3546 | /* 30 */ NULL, NULL, NULL, NULL, | |
3547 | /* 34 */ NULL, NULL, NULL, NULL, | |
3548 | /* 38 */ NULL, NULL, NULL, NULL, | |
3549 | /* 3C */ NULL, NULL, NULL, NULL, | |
3550 | /* 40 */ NULL, NULL, NULL, NULL, | |
3551 | /* 44 */ NULL, NULL, NULL, NULL, | |
3552 | /* 48 */ NULL, NULL, NULL, NULL, | |
3553 | /* 4C */ NULL, NULL, NULL, NULL, | |
3554 | /* 50 */ NULL, NULL, NULL, NULL, | |
3555 | /* 54 */ NULL, NULL, NULL, NULL, | |
3556 | /* 58 */ NULL, NULL, NULL, NULL, | |
3557 | /* 5C */ NULL, NULL, NULL, NULL, | |
3558 | /* 60 */ NULL, NULL, NULL, NULL, | |
3559 | /* 64 */ NULL, NULL, NULL, NULL, | |
3560 | /* 68 */ NULL, NULL, NULL, NULL, | |
3561 | /* 6C */ NULL, NULL, NULL, NULL, | |
3562 | /* 70 */ NULL, NULL, NULL, NULL, | |
3563 | /* 74 */ NULL, NULL, NULL, NULL, | |
3564 | /* 78 */ NULL, NULL, NULL, NULL, | |
3565 | /* 7C */ NULL, NULL, NULL, NULL, | |
3566 | /* 80 */ NULL, NULL, NULL, NULL, | |
3567 | /* 84 */ NULL, NULL, NULL, NULL, | |
3568 | /* 88 */ NULL, NULL, NULL, NULL, | |
3569 | /* 8C */ NULL, NULL, NULL, NULL, | |
3570 | /* 90 */ "pfcmpge", NULL, NULL, NULL, | |
3571 | /* 94 */ "pfmin", NULL, "pfrcp", "pfrsqrt", | |
3572 | /* 98 */ NULL, NULL, "pfsub", NULL, | |
3573 | /* 9C */ NULL, NULL, "pfadd", NULL, | |
3574 | /* A0 */ "pfcmpgt", NULL, NULL, NULL, | |
3575 | /* A4 */ "pfmax", NULL, "pfrcpit1", "pfrsqit1", | |
3576 | /* A8 */ NULL, NULL, "pfsubr", NULL, | |
3577 | /* AC */ NULL, NULL, "pfacc", NULL, | |
3578 | /* B0 */ "pfcmpeq", NULL, NULL, NULL, | |
3579 | /* B4 */ "pfmul", NULL, "pfrcpit2", "pfmulhrw", | |
3580 | /* B8 */ NULL, NULL, NULL, NULL, | |
3581 | /* BC */ NULL, NULL, NULL, "pavgusb", | |
3582 | /* C0 */ NULL, NULL, NULL, NULL, | |
3583 | /* C4 */ NULL, NULL, NULL, NULL, | |
3584 | /* C8 */ NULL, NULL, NULL, NULL, | |
3585 | /* CC */ NULL, NULL, NULL, NULL, | |
3586 | /* D0 */ NULL, NULL, NULL, NULL, | |
3587 | /* D4 */ NULL, NULL, NULL, NULL, | |
3588 | /* D8 */ NULL, NULL, NULL, NULL, | |
3589 | /* DC */ NULL, NULL, NULL, NULL, | |
3590 | /* E0 */ NULL, NULL, NULL, NULL, | |
3591 | /* E4 */ NULL, NULL, NULL, NULL, | |
3592 | /* E8 */ NULL, NULL, NULL, NULL, | |
3593 | /* EC */ NULL, NULL, NULL, NULL, | |
3594 | /* F0 */ NULL, NULL, NULL, NULL, | |
3595 | /* F4 */ NULL, NULL, NULL, NULL, | |
3596 | /* F8 */ NULL, NULL, NULL, NULL, | |
3597 | /* FC */ NULL, NULL, NULL, NULL, | |
3598 | }; | |
3599 | ||
3600 | static void | |
3601 | OP_3DNowSuffix (bytemode, sizeflag) | |
3602 | int bytemode; | |
3603 | int sizeflag; | |
3604 | { | |
3605 | const char *mnemonic; | |
3606 | ||
3607 | FETCH_DATA (the_info, codep + 1); | |
3608 | /* AMD 3DNow! instructions are specified by an opcode suffix in the | |
3609 | place where an 8-bit immediate would normally go. ie. the last | |
3610 | byte of the instruction. */ | |
2da11e11 | 3611 | obufp = obuf + strlen(obuf); |
c608c12e | 3612 | mnemonic = Suffix3DNow[*codep++ & 0xff]; |
252b5132 | 3613 | if (mnemonic) |
2da11e11 | 3614 | oappend (mnemonic); |
252b5132 RH |
3615 | else |
3616 | { | |
3617 | /* Since a variable sized modrm/sib chunk is between the start | |
3618 | of the opcode (0x0f0f) and the opcode suffix, we need to do | |
3619 | all the modrm processing first, and don't know until now that | |
3620 | we have a bad opcode. This necessitates some cleaning up. */ | |
2da11e11 AM |
3621 | op1out[0] = '\0'; |
3622 | op2out[0] = '\0'; | |
3623 | BadOp(); | |
252b5132 RH |
3624 | } |
3625 | } | |
c608c12e AM |
3626 | |
3627 | ||
3628 | static const char *simd_cmp_op [] = { | |
3629 | "eq", | |
3630 | "lt", | |
3631 | "le", | |
3632 | "unord", | |
3633 | "neq", | |
3634 | "nlt", | |
3635 | "nle", | |
3636 | "ord" | |
3637 | }; | |
3638 | ||
3639 | static void | |
3640 | OP_SIMD_Suffix (bytemode, sizeflag) | |
3641 | int bytemode; | |
3642 | int sizeflag; | |
3643 | { | |
3644 | unsigned int cmp_type; | |
3645 | ||
3646 | FETCH_DATA (the_info, codep + 1); | |
2da11e11 | 3647 | obufp = obuf + strlen(obuf); |
c608c12e AM |
3648 | cmp_type = *codep++ & 0xff; |
3649 | if (cmp_type < 8) | |
3650 | { | |
3651 | sprintf (scratchbuf, "cmp%s%cs", | |
3652 | simd_cmp_op[cmp_type], | |
3653 | prefixes & PREFIX_REPZ ? 's' : 'p'); | |
7d421014 | 3654 | used_prefixes |= (prefixes & PREFIX_REPZ); |
2da11e11 | 3655 | oappend (scratchbuf); |
c608c12e AM |
3656 | } |
3657 | else | |
3658 | { | |
3659 | /* We have a bad extension byte. Clean up. */ | |
2da11e11 AM |
3660 | op1out[0] = '\0'; |
3661 | op2out[0] = '\0'; | |
3662 | BadOp(); | |
c608c12e AM |
3663 | } |
3664 | } | |
3665 | ||
3666 | static void | |
3667 | SIMD_Fixup (extrachar, sizeflag) | |
3668 | int extrachar; | |
3669 | int sizeflag; | |
3670 | { | |
3671 | /* Change movlps/movhps to movhlps/movlhps for 2 register operand | |
3672 | forms of these instructions. */ | |
3673 | if (mod == 3) | |
3674 | { | |
3675 | char *p = obuf + strlen(obuf); | |
3676 | *(p+1) = '\0'; | |
3677 | *p = *(p-1); | |
3678 | *(p-1) = *(p-2); | |
3679 | *(p-2) = *(p-3); | |
3680 | *(p-3) = extrachar; | |
3681 | } | |
3682 | } | |
2da11e11 AM |
3683 | |
3684 | static void BadOp (void) | |
3685 | { | |
3686 | codep = insn_codep + 1; /* throw away prefixes and 1st. opcode byte */ | |
3687 | oappend ("(bad)"); | |
3688 | } |