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[binutils.git] / opcodes / i386-dis.c
blobf73e883e779c475b6efc1ee0a073746fbb5587e7
1 /* Print i386 instructions for GDB, the GNU debugger.
2 Copyright 1988, 1989, 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2001, 2002, 2003, 2004, 2005 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., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
20
21 /* 80386 instruction printer by Pace Willisson (pace@prep.ai.mit.edu)
22 July 1988
23 modified by John Hassey (hassey@dg-rtp.dg.com)
24 x86-64 support added by Jan Hubicka (jh@suse.cz)
25 VIA PadLock support by Michal Ludvig (mludvig@suse.cz). */
26
27 /* The main tables describing the instructions is essentially a copy
28 of the "Opcode Map" chapter (Appendix A) of the Intel 80386
29 Programmers Manual. Usually, there is a capital letter, followed
30 by a small letter. The capital letter tell the addressing mode,
31 and the small letter tells about the operand size. Refer to
32 the Intel manual for details. */
33
34 #include "dis-asm.h"
35 #include "sysdep.h"
36 #include "opintl.h"
37
38 #define MAXLEN 15
39
40 #include <setjmp.h>
41
42 #ifndef UNIXWARE_COMPAT
43 /* Set non-zero for broken, compatible instructions. Set to zero for
44 non-broken opcodes. */
45 #define UNIXWARE_COMPAT 1
46 #endif
47
48 static int fetch_data (struct disassemble_info *, bfd_byte *);
49 static void ckprefix (void);
50 static const char *prefix_name (int, int);
51 static int print_insn (bfd_vma, disassemble_info *);
52 static void dofloat (int);
53 static void OP_ST (int, int);
54 static void OP_STi (int, int);
55 static int putop (const char *, int);
56 static void oappend (const char *);
57 static void append_seg (void);
58 static void OP_indirE (int, int);
59 static void print_operand_value (char *, int, bfd_vma);
60 static void OP_E (int, int);
61 static void OP_G (int, int);
62 static bfd_vma get64 (void);
63 static bfd_signed_vma get32 (void);
64 static bfd_signed_vma get32s (void);
65 static int get16 (void);
66 static void set_op (bfd_vma, int);
67 static void OP_REG (int, int);
68 static void OP_IMREG (int, int);
69 static void OP_I (int, int);
70 static void OP_I64 (int, int);
71 static void OP_sI (int, int);
72 static void OP_J (int, int);
73 static void OP_SEG (int, int);
74 static void OP_DIR (int, int);
75 static void OP_OFF (int, int);
76 static void OP_OFF64 (int, int);
77 static void ptr_reg (int, int);
78 static void OP_ESreg (int, int);
79 static void OP_DSreg (int, int);
80 static void OP_C (int, int);
81 static void OP_D (int, int);
82 static void OP_T (int, int);
83 static void OP_Rd (int, int);
84 static void OP_MMX (int, int);
85 static void OP_XMM (int, int);
86 static void OP_EM (int, int);
87 static void OP_EX (int, int);
88 static void OP_MS (int, int);
89 static void OP_XS (int, int);
90 static void OP_M (int, int);
91 static void OP_VMX (int, int);
92 static void OP_0fae (int, int);
93 static void OP_0f07 (int, int);
94 static void NOP_Fixup (int, int);
95 static void OP_3DNowSuffix (int, int);
96 static void OP_SIMD_Suffix (int, int);
97 static void SIMD_Fixup (int, int);
98 static void PNI_Fixup (int, int);
99 static void SVME_Fixup (int, int);
100 static void INVLPG_Fixup (int, int);
101 static void BadOp (void);
102 static void SEG_Fixup (int, int);
103 static void VMX_Fixup (int, int);
104 static void REP_Fixup (int, int);
105
106 struct dis_private {
107 /* Points to first byte not fetched. */
108 bfd_byte *max_fetched;
109 bfd_byte the_buffer[MAXLEN];
110 bfd_vma insn_start;
111 int orig_sizeflag;
112 jmp_buf bailout;
113 };
114
115 /* The opcode for the fwait instruction, which we treat as a prefix
116 when we can. */
117 #define FWAIT_OPCODE (0x9b)
118
119 enum address_mode
120 {
121 mode_16bit,
122 mode_32bit,
123 mode_64bit
124 };
125
126 enum address_mode address_mode;
127
128 /* Flags for the prefixes for the current instruction. See below. */
129 static int prefixes;
130
131 /* REX prefix the current instruction. See below. */
132 static int rex;
133 /* Bits of REX we've already used. */
134 static int rex_used;
135 #define REX_MODE64 8
136 #define REX_EXTX 4
137 #define REX_EXTY 2
138 #define REX_EXTZ 1
139 /* Mark parts used in the REX prefix. When we are testing for
140 empty prefix (for 8bit register REX extension), just mask it
141 out. Otherwise test for REX bit is excuse for existence of REX
142 only in case value is nonzero. */
143 #define USED_REX(value) \
144 { \
145 if (value) \
146 rex_used |= (rex & value) ? (value) | 0x40 : 0; \
147 else \
148 rex_used |= 0x40; \
149 }
150
151 /* Flags for prefixes which we somehow handled when printing the
152 current instruction. */
153 static int used_prefixes;
154
155 /* Flags stored in PREFIXES. */
156 #define PREFIX_REPZ 1
157 #define PREFIX_REPNZ 2
158 #define PREFIX_LOCK 4
159 #define PREFIX_CS 8
160 #define PREFIX_SS 0x10
161 #define PREFIX_DS 0x20
162 #define PREFIX_ES 0x40
163 #define PREFIX_FS 0x80
164 #define PREFIX_GS 0x100
165 #define PREFIX_DATA 0x200
166 #define PREFIX_ADDR 0x400
167 #define PREFIX_FWAIT 0x800
168
169 /* Make sure that bytes from INFO->PRIVATE_DATA->BUFFER (inclusive)
170 to ADDR (exclusive) are valid. Returns 1 for success, longjmps
171 on error. */
172 #define FETCH_DATA(info, addr) \
173 ((addr) <= ((struct dis_private *) (info->private_data))->max_fetched \
174 ? 1 : fetch_data ((info), (addr)))
175
176 static int
177 fetch_data (struct disassemble_info *info, bfd_byte *addr)
178 {
179 int status;
180 struct dis_private *priv = (struct dis_private *) info->private_data;
181 bfd_vma start = priv->insn_start + (priv->max_fetched - priv->the_buffer);
182
183 if (addr <= priv->the_buffer + MAXLEN)
184 status = (*info->read_memory_func) (start,
185 priv->max_fetched,
186 addr - priv->max_fetched,
187 info);
188 else
189 status = -1;
190 if (status != 0)
191 {
192 /* If we did manage to read at least one byte, then
193 print_insn_i386 will do something sensible. Otherwise, print
194 an error. We do that here because this is where we know
195 STATUS. */
196 if (priv->max_fetched == priv->the_buffer)
197 (*info->memory_error_func) (status, start, info);
198 longjmp (priv->bailout, 1);
199 }
200 else
201 priv->max_fetched = addr;
202 return 1;
203 }
204
205 #define XX NULL, 0
206
207 #define Eb OP_E, b_mode
208 #define Ev OP_E, v_mode
209 #define Ed OP_E, d_mode
210 #define Eq OP_E, q_mode
211 #define Edq OP_E, dq_mode
212 #define Edqw OP_E, dqw_mode
213 #define indirEv OP_indirE, stack_v_mode
214 #define indirEp OP_indirE, f_mode
215 #define stackEv OP_E, stack_v_mode
216 #define Em OP_E, m_mode
217 #define Ew OP_E, w_mode
218 #define Ma OP_E, v_mode
219 #define M OP_M, 0 /* lea, lgdt, etc. */
220 #define Mp OP_M, f_mode /* 32 or 48 bit memory operand for LDS, LES etc */
221 #define Gb OP_G, b_mode
222 #define Gv OP_G, v_mode
223 #define Gd OP_G, d_mode
224 #define Gdq OP_G, dq_mode
225 #define Gm OP_G, m_mode
226 #define Gw OP_G, w_mode
227 #define Rd OP_Rd, d_mode
228 #define Rm OP_Rd, m_mode
229 #define Ib OP_I, b_mode
230 #define sIb OP_sI, b_mode /* sign extened byte */
231 #define Iv OP_I, v_mode
232 #define Iq OP_I, q_mode
233 #define Iv64 OP_I64, v_mode
234 #define Iw OP_I, w_mode
235 #define I1 OP_I, const_1_mode
236 #define Jb OP_J, b_mode
237 #define Jv OP_J, v_mode
238 #define Cm OP_C, m_mode
239 #define Dm OP_D, m_mode
240 #define Td OP_T, d_mode
241 #define Sv SEG_Fixup, v_mode
242
243 #define RMeAX OP_REG, eAX_reg
244 #define RMeBX OP_REG, eBX_reg
245 #define RMeCX OP_REG, eCX_reg
246 #define RMeDX OP_REG, eDX_reg
247 #define RMeSP OP_REG, eSP_reg
248 #define RMeBP OP_REG, eBP_reg
249 #define RMeSI OP_REG, eSI_reg
250 #define RMeDI OP_REG, eDI_reg
251 #define RMrAX OP_REG, rAX_reg
252 #define RMrBX OP_REG, rBX_reg
253 #define RMrCX OP_REG, rCX_reg
254 #define RMrDX OP_REG, rDX_reg
255 #define RMrSP OP_REG, rSP_reg
256 #define RMrBP OP_REG, rBP_reg
257 #define RMrSI OP_REG, rSI_reg
258 #define RMrDI OP_REG, rDI_reg
259 #define RMAL OP_REG, al_reg
260 #define RMAL OP_REG, al_reg
261 #define RMCL OP_REG, cl_reg
262 #define RMDL OP_REG, dl_reg
263 #define RMBL OP_REG, bl_reg
264 #define RMAH OP_REG, ah_reg
265 #define RMCH OP_REG, ch_reg
266 #define RMDH OP_REG, dh_reg
267 #define RMBH OP_REG, bh_reg
268 #define RMAX OP_REG, ax_reg
269 #define RMDX OP_REG, dx_reg
270
271 #define eAX OP_IMREG, eAX_reg
272 #define eBX OP_IMREG, eBX_reg
273 #define eCX OP_IMREG, eCX_reg
274 #define eDX OP_IMREG, eDX_reg
275 #define eSP OP_IMREG, eSP_reg
276 #define eBP OP_IMREG, eBP_reg
277 #define eSI OP_IMREG, eSI_reg
278 #define eDI OP_IMREG, eDI_reg
279 #define AL OP_IMREG, al_reg
280 #define CL OP_IMREG, cl_reg
281 #define DL OP_IMREG, dl_reg
282 #define BL OP_IMREG, bl_reg
283 #define AH OP_IMREG, ah_reg
284 #define CH OP_IMREG, ch_reg
285 #define DH OP_IMREG, dh_reg
286 #define BH OP_IMREG, bh_reg
287 #define AX OP_IMREG, ax_reg
288 #define DX OP_IMREG, dx_reg
289 #define indirDX OP_IMREG, indir_dx_reg
290
291 #define Sw OP_SEG, w_mode
292 #define Ap OP_DIR, 0
293 #define Ob OP_OFF64, b_mode
294 #define Ov OP_OFF64, v_mode
295 #define Xb OP_DSreg, eSI_reg
296 #define Xv OP_DSreg, eSI_reg
297 #define Yb OP_ESreg, eDI_reg
298 #define Yv OP_ESreg, eDI_reg
299 #define DSBX OP_DSreg, eBX_reg
300
301 #define es OP_REG, es_reg
302 #define ss OP_REG, ss_reg
303 #define cs OP_REG, cs_reg
304 #define ds OP_REG, ds_reg
305 #define fs OP_REG, fs_reg
306 #define gs OP_REG, gs_reg
307
308 #define MX OP_MMX, 0
309 #define XM OP_XMM, 0
310 #define EM OP_EM, v_mode
311 #define EX OP_EX, v_mode
312 #define MS OP_MS, v_mode
313 #define XS OP_XS, v_mode
314 #define VM OP_VMX, q_mode
315 #define OPSUF OP_3DNowSuffix, 0
316 #define OPSIMD OP_SIMD_Suffix, 0
317
318 /* Used handle "rep" prefix for string instructions. */
319 #define Xbr REP_Fixup, eSI_reg
320 #define Xvr REP_Fixup, eSI_reg
321 #define Ybr REP_Fixup, eDI_reg
322 #define Yvr REP_Fixup, eDI_reg
323 #define indirDXr REP_Fixup, indir_dx_reg
324 #define ALr REP_Fixup, al_reg
325 #define eAXr REP_Fixup, eAX_reg
326
327 #define cond_jump_flag NULL, cond_jump_mode
328 #define loop_jcxz_flag NULL, loop_jcxz_mode
329
330 /* bits in sizeflag */
331 #define SUFFIX_ALWAYS 4
332 #define AFLAG 2
333 #define DFLAG 1
334
335 #define b_mode 1 /* byte operand */
336 #define v_mode 2 /* operand size depends on prefixes */
337 #define w_mode 3 /* word operand */
338 #define d_mode 4 /* double word operand */
339 #define q_mode 5 /* quad word operand */
340 #define t_mode 6 /* ten-byte operand */
341 #define x_mode 7 /* 16-byte XMM operand */
342 #define m_mode 8 /* d_mode in 32bit, q_mode in 64bit mode. */
343 #define cond_jump_mode 9
344 #define loop_jcxz_mode 10
345 #define dq_mode 11 /* operand size depends on REX prefixes. */
346 #define dqw_mode 12 /* registers like dq_mode, memory like w_mode. */
347 #define f_mode 13 /* 4- or 6-byte pointer operand */
348 #define const_1_mode 14
349 #define stack_v_mode 15 /* v_mode for stack-related opcodes. */
350
351 #define es_reg 100
352 #define cs_reg 101
353 #define ss_reg 102
354 #define ds_reg 103
355 #define fs_reg 104
356 #define gs_reg 105
357
358 #define eAX_reg 108
359 #define eCX_reg 109
360 #define eDX_reg 110
361 #define eBX_reg 111
362 #define eSP_reg 112
363 #define eBP_reg 113
364 #define eSI_reg 114
365 #define eDI_reg 115
366
367 #define al_reg 116
368 #define cl_reg 117
369 #define dl_reg 118
370 #define bl_reg 119
371 #define ah_reg 120
372 #define ch_reg 121
373 #define dh_reg 122
374 #define bh_reg 123
375
376 #define ax_reg 124
377 #define cx_reg 125
378 #define dx_reg 126
379 #define bx_reg 127
380 #define sp_reg 128
381 #define bp_reg 129
382 #define si_reg 130
383 #define di_reg 131
384
385 #define rAX_reg 132
386 #define rCX_reg 133
387 #define rDX_reg 134
388 #define rBX_reg 135
389 #define rSP_reg 136
390 #define rBP_reg 137
391 #define rSI_reg 138
392 #define rDI_reg 139
393
394 #define indir_dx_reg 150
395
396 #define FLOATCODE 1
397 #define USE_GROUPS 2
398 #define USE_PREFIX_USER_TABLE 3
399 #define X86_64_SPECIAL 4
400 #define IS_3BYTE_OPCODE 5
401
402 #define FLOAT NULL, NULL, FLOATCODE, NULL, 0, NULL, 0
403
404 #define GRP1b NULL, NULL, USE_GROUPS, NULL, 0, NULL, 0
405 #define GRP1S NULL, NULL, USE_GROUPS, NULL, 1, NULL, 0
406 #define GRP1Ss NULL, NULL, USE_GROUPS, NULL, 2, NULL, 0
407 #define GRP2b NULL, NULL, USE_GROUPS, NULL, 3, NULL, 0
408 #define GRP2S NULL, NULL, USE_GROUPS, NULL, 4, NULL, 0
409 #define GRP2b_one NULL, NULL, USE_GROUPS, NULL, 5, NULL, 0
410 #define GRP2S_one NULL, NULL, USE_GROUPS, NULL, 6, NULL, 0
411 #define GRP2b_cl NULL, NULL, USE_GROUPS, NULL, 7, NULL, 0
412 #define GRP2S_cl NULL, NULL, USE_GROUPS, NULL, 8, NULL, 0
413 #define GRP3b NULL, NULL, USE_GROUPS, NULL, 9, NULL, 0
414 #define GRP3S NULL, NULL, USE_GROUPS, NULL, 10, NULL, 0
415 #define GRP4 NULL, NULL, USE_GROUPS, NULL, 11, NULL, 0
416 #define GRP5 NULL, NULL, USE_GROUPS, NULL, 12, NULL, 0
417 #define GRP6 NULL, NULL, USE_GROUPS, NULL, 13, NULL, 0
418 #define GRP7 NULL, NULL, USE_GROUPS, NULL, 14, NULL, 0
419 #define GRP8 NULL, NULL, USE_GROUPS, NULL, 15, NULL, 0
420 #define GRP9 NULL, NULL, USE_GROUPS, NULL, 16, NULL, 0
421 #define GRP10 NULL, NULL, USE_GROUPS, NULL, 17, NULL, 0
422 #define GRP11 NULL, NULL, USE_GROUPS, NULL, 18, NULL, 0
423 #define GRP12 NULL, NULL, USE_GROUPS, NULL, 19, NULL, 0
424 #define GRP13 NULL, NULL, USE_GROUPS, NULL, 20, NULL, 0
425 #define GRP14 NULL, NULL, USE_GROUPS, NULL, 21, NULL, 0
426 #define GRPAMD NULL, NULL, USE_GROUPS, NULL, 22, NULL, 0
427 #define GRPPADLCK1 NULL, NULL, USE_GROUPS, NULL, 23, NULL, 0
428 #define GRPPADLCK2 NULL, NULL, USE_GROUPS, NULL, 24, NULL, 0
429
430 #define PREGRP0 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 0, NULL, 0
431 #define PREGRP1 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 1, NULL, 0
432 #define PREGRP2 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 2, NULL, 0
433 #define PREGRP3 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 3, NULL, 0
434 #define PREGRP4 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 4, NULL, 0
435 #define PREGRP5 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 5, NULL, 0
436 #define PREGRP6 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 6, NULL, 0
437 #define PREGRP7 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 7, NULL, 0
438 #define PREGRP8 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 8, NULL, 0
439 #define PREGRP9 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 9, NULL, 0
440 #define PREGRP10 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 10, NULL, 0
441 #define PREGRP11 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 11, NULL, 0
442 #define PREGRP12 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 12, NULL, 0
443 #define PREGRP13 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 13, NULL, 0
444 #define PREGRP14 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 14, NULL, 0
445 #define PREGRP15 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 15, NULL, 0
446 #define PREGRP16 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 16, NULL, 0
447 #define PREGRP17 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 17, NULL, 0
448 #define PREGRP18 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 18, NULL, 0
449 #define PREGRP19 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 19, NULL, 0
450 #define PREGRP20 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 20, NULL, 0
451 #define PREGRP21 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 21, NULL, 0
452 #define PREGRP22 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 22, NULL, 0
453 #define PREGRP23 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 23, NULL, 0
454 #define PREGRP24 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 24, NULL, 0
455 #define PREGRP25 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 25, NULL, 0
456 #define PREGRP26 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 26, NULL, 0
457 #define PREGRP27 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 27, NULL, 0
458 #define PREGRP28 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 28, NULL, 0
459 #define PREGRP29 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 29, NULL, 0
460 #define PREGRP30 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 30, NULL, 0
461 #define PREGRP31 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 31, NULL, 0
462 #define PREGRP32 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 32, NULL, 0
463
464 #define X86_64_0 NULL, NULL, X86_64_SPECIAL, NULL, 0, NULL, 0
465
466 #define THREE_BYTE_0 NULL, NULL, IS_3BYTE_OPCODE, NULL, 0, NULL, 0
467 #define THREE_BYTE_1 NULL, NULL, IS_3BYTE_OPCODE, NULL, 1, NULL, 0
468
469 typedef void (*op_rtn) (int bytemode, int sizeflag);
470
471 struct dis386 {
472 const char *name;
473 op_rtn op1;
474 int bytemode1;
475 op_rtn op2;
476 int bytemode2;
477 op_rtn op3;
478 int bytemode3;
479 };
480
481 /* Upper case letters in the instruction names here are macros.
482 'A' => print 'b' if no register operands or suffix_always is true
483 'B' => print 'b' if suffix_always is true
484 'C' => print 's' or 'l' ('w' or 'd' in Intel mode) depending on operand
485 . size prefix
486 'E' => print 'e' if 32-bit form of jcxz
487 'F' => print 'w' or 'l' depending on address size prefix (loop insns)
488 'H' => print ",pt" or ",pn" branch hint
489 'I' => honor following macro letter even in Intel mode (implemented only
490 . for some of the macro letters)
491 'J' => print 'l'
492 'L' => print 'l' if suffix_always is true
493 'N' => print 'n' if instruction has no wait "prefix"
494 'O' => print 'd', or 'o'
495 'P' => print 'w', 'l' or 'q' if instruction has an operand size prefix,
496 . or suffix_always is true. print 'q' if rex prefix is present.
497 'Q' => print 'w', 'l' or 'q' if no register operands or suffix_always
498 . is true
499 'R' => print 'w', 'l' or 'q' ("wd" or "dq" in intel mode)
500 'S' => print 'w', 'l' or 'q' if suffix_always is true
501 'T' => print 'q' in 64bit mode and behave as 'P' otherwise
502 'U' => print 'q' in 64bit mode and behave as 'Q' otherwise
503 'V' => print 'q' in 64bit mode and behave as 'S' otherwise
504 'W' => print 'b' or 'w' ("w" or "de" in intel mode)
505 'X' => print 's', 'd' depending on data16 prefix (for XMM)
506 'Y' => 'q' if instruction has an REX 64bit overwrite prefix
507 'Z' => print 'q' in 64bit mode and behave as 'L' otherwise
508
509 Many of the above letters print nothing in Intel mode. See "putop"
510 for the details.
511
512 Braces '{' and '}', and vertical bars '|', indicate alternative
513 mnemonic strings for AT&T, Intel, X86_64 AT&T, and X86_64 Intel
514 modes. In cases where there are only two alternatives, the X86_64
515 instruction is reserved, and "(bad)" is printed.
516 */
517
518 static const struct dis386 dis386[] = {
519 /* 00 */
520 { "addB", Eb, Gb, XX },
521 { "addS", Ev, Gv, XX },
522 { "addB", Gb, Eb, XX },
523 { "addS", Gv, Ev, XX },
524 { "addB", AL, Ib, XX },
525 { "addS", eAX, Iv, XX },
526 { "push{T|}", es, XX, XX },
527 { "pop{T|}", es, XX, XX },
528 /* 08 */
529 { "orB", Eb, Gb, XX },
530 { "orS", Ev, Gv, XX },
531 { "orB", Gb, Eb, XX },
532 { "orS", Gv, Ev, XX },
533 { "orB", AL, Ib, XX },
534 { "orS", eAX, Iv, XX },
535 { "push{T|}", cs, XX, XX },
536 { "(bad)", XX, XX, XX }, /* 0x0f extended opcode escape */
537 /* 10 */
538 { "adcB", Eb, Gb, XX },
539 { "adcS", Ev, Gv, XX },
540 { "adcB", Gb, Eb, XX },
541 { "adcS", Gv, Ev, XX },
542 { "adcB", AL, Ib, XX },
543 { "adcS", eAX, Iv, XX },
544 { "push{T|}", ss, XX, XX },
545 { "pop{T|}", ss, XX, XX },
546 /* 18 */
547 { "sbbB", Eb, Gb, XX },
548 { "sbbS", Ev, Gv, XX },
549 { "sbbB", Gb, Eb, XX },
550 { "sbbS", Gv, Ev, XX },
551 { "sbbB", AL, Ib, XX },
552 { "sbbS", eAX, Iv, XX },
553 { "push{T|}", ds, XX, XX },
554 { "pop{T|}", ds, XX, XX },
555 /* 20 */
556 { "andB", Eb, Gb, XX },
557 { "andS", Ev, Gv, XX },
558 { "andB", Gb, Eb, XX },
559 { "andS", Gv, Ev, XX },
560 { "andB", AL, Ib, XX },
561 { "andS", eAX, Iv, XX },
562 { "(bad)", XX, XX, XX }, /* SEG ES prefix */
563 { "daa{|}", XX, XX, XX },
564 /* 28 */
565 { "subB", Eb, Gb, XX },
566 { "subS", Ev, Gv, XX },
567 { "subB", Gb, Eb, XX },
568 { "subS", Gv, Ev, XX },
569 { "subB", AL, Ib, XX },
570 { "subS", eAX, Iv, XX },
571 { "(bad)", XX, XX, XX }, /* SEG CS prefix */
572 { "das{|}", XX, XX, XX },
573 /* 30 */
574 { "xorB", Eb, Gb, XX },
575 { "xorS", Ev, Gv, XX },
576 { "xorB", Gb, Eb, XX },
577 { "xorS", Gv, Ev, XX },
578 { "xorB", AL, Ib, XX },
579 { "xorS", eAX, Iv, XX },
580 { "(bad)", XX, XX, XX }, /* SEG SS prefix */
581 { "aaa{|}", XX, XX, XX },
582 /* 38 */
583 { "cmpB", Eb, Gb, XX },
584 { "cmpS", Ev, Gv, XX },
585 { "cmpB", Gb, Eb, XX },
586 { "cmpS", Gv, Ev, XX },
587 { "cmpB", AL, Ib, XX },
588 { "cmpS", eAX, Iv, XX },
589 { "(bad)", XX, XX, XX }, /* SEG DS prefix */
590 { "aas{|}", XX, XX, XX },
591 /* 40 */
592 { "inc{S|}", RMeAX, XX, XX },
593 { "inc{S|}", RMeCX, XX, XX },
594 { "inc{S|}", RMeDX, XX, XX },
595 { "inc{S|}", RMeBX, XX, XX },
596 { "inc{S|}", RMeSP, XX, XX },
597 { "inc{S|}", RMeBP, XX, XX },
598 { "inc{S|}", RMeSI, XX, XX },
599 { "inc{S|}", RMeDI, XX, XX },
600 /* 48 */
601 { "dec{S|}", RMeAX, XX, XX },
602 { "dec{S|}", RMeCX, XX, XX },
603 { "dec{S|}", RMeDX, XX, XX },
604 { "dec{S|}", RMeBX, XX, XX },
605 { "dec{S|}", RMeSP, XX, XX },
606 { "dec{S|}", RMeBP, XX, XX },
607 { "dec{S|}", RMeSI, XX, XX },
608 { "dec{S|}", RMeDI, XX, XX },
609 /* 50 */
610 { "pushV", RMrAX, XX, XX },
611 { "pushV", RMrCX, XX, XX },
612 { "pushV", RMrDX, XX, XX },
613 { "pushV", RMrBX, XX, XX },
614 { "pushV", RMrSP, XX, XX },
615 { "pushV", RMrBP, XX, XX },
616 { "pushV", RMrSI, XX, XX },
617 { "pushV", RMrDI, XX, XX },
618 /* 58 */
619 { "popV", RMrAX, XX, XX },
620 { "popV", RMrCX, XX, XX },
621 { "popV", RMrDX, XX, XX },
622 { "popV", RMrBX, XX, XX },
623 { "popV", RMrSP, XX, XX },
624 { "popV", RMrBP, XX, XX },
625 { "popV", RMrSI, XX, XX },
626 { "popV", RMrDI, XX, XX },
627 /* 60 */
628 { "pusha{P|}", XX, XX, XX },
629 { "popa{P|}", XX, XX, XX },
630 { "bound{S|}", Gv, Ma, XX },
631 { X86_64_0 },
632 { "(bad)", XX, XX, XX }, /* seg fs */
633 { "(bad)", XX, XX, XX }, /* seg gs */
634 { "(bad)", XX, XX, XX }, /* op size prefix */
635 { "(bad)", XX, XX, XX }, /* adr size prefix */
636 /* 68 */
637 { "pushT", Iq, XX, XX },
638 { "imulS", Gv, Ev, Iv },
639 { "pushT", sIb, XX, XX },
640 { "imulS", Gv, Ev, sIb },
641 { "ins{b||b|}", Ybr, indirDX, XX },
642 { "ins{R||R|}", Yvr, indirDX, XX },
643 { "outs{b||b|}", indirDXr, Xb, XX },
644 { "outs{R||R|}", indirDXr, Xv, XX },
645 /* 70 */
646 { "joH", Jb, XX, cond_jump_flag },
647 { "jnoH", Jb, XX, cond_jump_flag },
648 { "jbH", Jb, XX, cond_jump_flag },
649 { "jaeH", Jb, XX, cond_jump_flag },
650 { "jeH", Jb, XX, cond_jump_flag },
651 { "jneH", Jb, XX, cond_jump_flag },
652 { "jbeH", Jb, XX, cond_jump_flag },
653 { "jaH", Jb, XX, cond_jump_flag },
654 /* 78 */
655 { "jsH", Jb, XX, cond_jump_flag },
656 { "jnsH", Jb, XX, cond_jump_flag },
657 { "jpH", Jb, XX, cond_jump_flag },
658 { "jnpH", Jb, XX, cond_jump_flag },
659 { "jlH", Jb, XX, cond_jump_flag },
660 { "jgeH", Jb, XX, cond_jump_flag },
661 { "jleH", Jb, XX, cond_jump_flag },
662 { "jgH", Jb, XX, cond_jump_flag },
663 /* 80 */
664 { GRP1b },
665 { GRP1S },
666 { "(bad)", XX, XX, XX },
667 { GRP1Ss },
668 { "testB", Eb, Gb, XX },
669 { "testS", Ev, Gv, XX },
670 { "xchgB", Eb, Gb, XX },
671 { "xchgS", Ev, Gv, XX },
672 /* 88 */
673 { "movB", Eb, Gb, XX },
674 { "movS", Ev, Gv, XX },
675 { "movB", Gb, Eb, XX },
676 { "movS", Gv, Ev, XX },
677 { "movQ", Sv, Sw, XX },
678 { "leaS", Gv, M, XX },
679 { "movQ", Sw, Sv, XX },
680 { "popU", stackEv, XX, XX },
681 /* 90 */
682 { "nop", NOP_Fixup, 0, XX, XX },
683 { "xchgS", RMeCX, eAX, XX },
684 { "xchgS", RMeDX, eAX, XX },
685 { "xchgS", RMeBX, eAX, XX },
686 { "xchgS", RMeSP, eAX, XX },
687 { "xchgS", RMeBP, eAX, XX },
688 { "xchgS", RMeSI, eAX, XX },
689 { "xchgS", RMeDI, eAX, XX },
690 /* 98 */
691 { "cW{tR||tR|}", XX, XX, XX },
692 { "cR{tO||tO|}", XX, XX, XX },
693 { "Jcall{T|}", Ap, XX, XX },
694 { "(bad)", XX, XX, XX }, /* fwait */
695 { "pushfT", XX, XX, XX },
696 { "popfT", XX, XX, XX },
697 { "sahf{|}", XX, XX, XX },
698 { "lahf{|}", XX, XX, XX },
699 /* a0 */
700 { "movB", AL, Ob, XX },
701 { "movS", eAX, Ov, XX },
702 { "movB", Ob, AL, XX },
703 { "movS", Ov, eAX, XX },
704 { "movs{b||b|}", Ybr, Xb, XX },
705 { "movs{R||R|}", Yvr, Xv, XX },
706 { "cmps{b||b|}", Xb, Yb, XX },
707 { "cmps{R||R|}", Xv, Yv, XX },
708 /* a8 */
709 { "testB", AL, Ib, XX },
710 { "testS", eAX, Iv, XX },
711 { "stosB", Ybr, AL, XX },
712 { "stosS", Yvr, eAX, XX },
713 { "lodsB", ALr, Xb, XX },
714 { "lodsS", eAXr, Xv, XX },
715 { "scasB", AL, Yb, XX },
716 { "scasS", eAX, Yv, XX },
717 /* b0 */
718 { "movB", RMAL, Ib, XX },
719 { "movB", RMCL, Ib, XX },
720 { "movB", RMDL, Ib, XX },
721 { "movB", RMBL, Ib, XX },
722 { "movB", RMAH, Ib, XX },
723 { "movB", RMCH, Ib, XX },
724 { "movB", RMDH, Ib, XX },
725 { "movB", RMBH, Ib, XX },
726 /* b8 */
727 { "movS", RMeAX, Iv64, XX },
728 { "movS", RMeCX, Iv64, XX },
729 { "movS", RMeDX, Iv64, XX },
730 { "movS", RMeBX, Iv64, XX },
731 { "movS", RMeSP, Iv64, XX },
732 { "movS", RMeBP, Iv64, XX },
733 { "movS", RMeSI, Iv64, XX },
734 { "movS", RMeDI, Iv64, XX },
735 /* c0 */
736 { GRP2b },
737 { GRP2S },
738 { "retT", Iw, XX, XX },
739 { "retT", XX, XX, XX },
740 { "les{S|}", Gv, Mp, XX },
741 { "ldsS", Gv, Mp, XX },
742 { "movA", Eb, Ib, XX },
743 { "movQ", Ev, Iv, XX },
744 /* c8 */
745 { "enterT", Iw, Ib, XX },
746 { "leaveT", XX, XX, XX },
747 { "lretP", Iw, XX, XX },
748 { "lretP", XX, XX, XX },
749 { "int3", XX, XX, XX },
750 { "int", Ib, XX, XX },
751 { "into{|}", XX, XX, XX },
752 { "iretP", XX, XX, XX },
753 /* d0 */
754 { GRP2b_one },
755 { GRP2S_one },
756 { GRP2b_cl },
757 { GRP2S_cl },
758 { "aam{|}", sIb, XX, XX },
759 { "aad{|}", sIb, XX, XX },
760 { "(bad)", XX, XX, XX },
761 { "xlat", DSBX, XX, XX },
762 /* d8 */
763 { FLOAT },
764 { FLOAT },
765 { FLOAT },
766 { FLOAT },
767 { FLOAT },
768 { FLOAT },
769 { FLOAT },
770 { FLOAT },
771 /* e0 */
772 { "loopneFH", Jb, XX, loop_jcxz_flag },
773 { "loopeFH", Jb, XX, loop_jcxz_flag },
774 { "loopFH", Jb, XX, loop_jcxz_flag },
775 { "jEcxzH", Jb, XX, loop_jcxz_flag },
776 { "inB", AL, Ib, XX },
777 { "inS", eAX, Ib, XX },
778 { "outB", Ib, AL, XX },
779 { "outS", Ib, eAX, XX },
780 /* e8 */
781 { "callT", Jv, XX, XX },
782 { "jmpT", Jv, XX, XX },
783 { "Jjmp{T|}", Ap, XX, XX },
784 { "jmp", Jb, XX, XX },
785 { "inB", AL, indirDX, XX },
786 { "inS", eAX, indirDX, XX },
787 { "outB", indirDX, AL, XX },
788 { "outS", indirDX, eAX, XX },
789 /* f0 */
790 { "(bad)", XX, XX, XX }, /* lock prefix */
791 { "icebp", XX, XX, XX },
792 { "(bad)", XX, XX, XX }, /* repne */
793 { "(bad)", XX, XX, XX }, /* repz */
794 { "hlt", XX, XX, XX },
795 { "cmc", XX, XX, XX },
796 { GRP3b },
797 { GRP3S },
798 /* f8 */
799 { "clc", XX, XX, XX },
800 { "stc", XX, XX, XX },
801 { "cli", XX, XX, XX },
802 { "sti", XX, XX, XX },
803 { "cld", XX, XX, XX },
804 { "std", XX, XX, XX },
805 { GRP4 },
806 { GRP5 },
807 };
808
809 static const struct dis386 dis386_twobyte[] = {
810 /* 00 */
811 { GRP6 },
812 { GRP7 },
813 { "larS", Gv, Ew, XX },
814 { "lslS", Gv, Ew, XX },
815 { "(bad)", XX, XX, XX },
816 { "syscall", XX, XX, XX },
817 { "clts", XX, XX, XX },
818 { "sysretP", XX, XX, XX },
819 /* 08 */
820 { "invd", XX, XX, XX },
821 { "wbinvd", XX, XX, XX },
822 { "(bad)", XX, XX, XX },
823 { "ud2a", XX, XX, XX },
824 { "(bad)", XX, XX, XX },
825 { GRPAMD },
826 { "femms", XX, XX, XX },
827 { "", MX, EM, OPSUF }, /* See OP_3DNowSuffix. */
828 /* 10 */
829 { PREGRP8 },
830 { PREGRP9 },
831 { PREGRP30 },
832 { "movlpX", EX, XM, SIMD_Fixup, 'h' },
833 { "unpcklpX", XM, EX, XX },
834 { "unpckhpX", XM, EX, XX },
835 { PREGRP31 },
836 { "movhpX", EX, XM, SIMD_Fixup, 'l' },
837 /* 18 */
838 { GRP14 },
839 { "(bad)", XX, XX, XX },
840 { "(bad)", XX, XX, XX },
841 { "(bad)", XX, XX, XX },
842 { "(bad)", XX, XX, XX },
843 { "(bad)", XX, XX, XX },
844 { "(bad)", XX, XX, XX },
845 { "(bad)", XX, XX, XX },
846 /* 20 */
847 { "movZ", Rm, Cm, XX },
848 { "movZ", Rm, Dm, XX },
849 { "movZ", Cm, Rm, XX },
850 { "movZ", Dm, Rm, XX },
851 { "movL", Rd, Td, XX },
852 { "(bad)", XX, XX, XX },
853 { "movL", Td, Rd, XX },
854 { "(bad)", XX, XX, XX },
855 /* 28 */
856 { "movapX", XM, EX, XX },
857 { "movapX", EX, XM, XX },
858 { PREGRP2 },
859 { "movntpX", Ev, XM, XX },
860 { PREGRP4 },
861 { PREGRP3 },
862 { "ucomisX", XM,EX, XX },
863 { "comisX", XM,EX, XX },
864 /* 30 */
865 { "wrmsr", XX, XX, XX },
866 { "rdtsc", XX, XX, XX },
867 { "rdmsr", XX, XX, XX },
868 { "rdpmc", XX, XX, XX },
869 { "sysenter", XX, XX, XX },
870 { "sysexit", XX, XX, XX },
871 { "(bad)", XX, XX, XX },
872 { "(bad)", XX, XX, XX },
873 /* 38 */
874 { THREE_BYTE_0 },
875 { "(bad)", XX, XX, XX },
876 { THREE_BYTE_1 },
877 { "(bad)", XX, XX, XX },
878 { "(bad)", XX, XX, XX },
879 { "(bad)", XX, XX, XX },
880 { "(bad)", XX, XX, XX },
881 { "(bad)", XX, XX, XX },
882 /* 40 */
883 { "cmovo", Gv, Ev, XX },
884 { "cmovno", Gv, Ev, XX },
885 { "cmovb", Gv, Ev, XX },
886 { "cmovae", Gv, Ev, XX },
887 { "cmove", Gv, Ev, XX },
888 { "cmovne", Gv, Ev, XX },
889 { "cmovbe", Gv, Ev, XX },
890 { "cmova", Gv, Ev, XX },
891 /* 48 */
892 { "cmovs", Gv, Ev, XX },
893 { "cmovns", Gv, Ev, XX },
894 { "cmovp", Gv, Ev, XX },
895 { "cmovnp", Gv, Ev, XX },
896 { "cmovl", Gv, Ev, XX },
897 { "cmovge", Gv, Ev, XX },
898 { "cmovle", Gv, Ev, XX },
899 { "cmovg", Gv, Ev, XX },
900 /* 50 */
901 { "movmskpX", Gdq, XS, XX },
902 { PREGRP13 },
903 { PREGRP12 },
904 { PREGRP11 },
905 { "andpX", XM, EX, XX },
906 { "andnpX", XM, EX, XX },
907 { "orpX", XM, EX, XX },
908 { "xorpX", XM, EX, XX },
909 /* 58 */
910 { PREGRP0 },
911 { PREGRP10 },
912 { PREGRP17 },
913 { PREGRP16 },
914 { PREGRP14 },
915 { PREGRP7 },
916 { PREGRP5 },
917 { PREGRP6 },
918 /* 60 */
919 { "punpcklbw", MX, EM, XX },
920 { "punpcklwd", MX, EM, XX },
921 { "punpckldq", MX, EM, XX },
922 { "packsswb", MX, EM, XX },
923 { "pcmpgtb", MX, EM, XX },
924 { "pcmpgtw", MX, EM, XX },
925 { "pcmpgtd", MX, EM, XX },
926 { "packuswb", MX, EM, XX },
927 /* 68 */
928 { "punpckhbw", MX, EM, XX },
929 { "punpckhwd", MX, EM, XX },
930 { "punpckhdq", MX, EM, XX },
931 { "packssdw", MX, EM, XX },
932 { PREGRP26 },
933 { PREGRP24 },
934 { "movd", MX, Edq, XX },
935 { PREGRP19 },
936 /* 70 */
937 { PREGRP22 },
938 { GRP10 },
939 { GRP11 },
940 { GRP12 },
941 { "pcmpeqb", MX, EM, XX },
942 { "pcmpeqw", MX, EM, XX },
943 { "pcmpeqd", MX, EM, XX },
944 { "emms", XX, XX, XX },
945 /* 78 */
946 { "vmread", Em, Gm, XX },
947 { "vmwrite", Gm, Em, XX },
948 { "(bad)", XX, XX, XX },
949 { "(bad)", XX, XX, XX },
950 { PREGRP28 },
951 { PREGRP29 },
952 { PREGRP23 },
953 { PREGRP20 },
954 /* 80 */
955 { "joH", Jv, XX, cond_jump_flag },
956 { "jnoH", Jv, XX, cond_jump_flag },
957 { "jbH", Jv, XX, cond_jump_flag },
958 { "jaeH", Jv, XX, cond_jump_flag },
959 { "jeH", Jv, XX, cond_jump_flag },
960 { "jneH", Jv, XX, cond_jump_flag },
961 { "jbeH", Jv, XX, cond_jump_flag },
962 { "jaH", Jv, XX, cond_jump_flag },
963 /* 88 */
964 { "jsH", Jv, XX, cond_jump_flag },
965 { "jnsH", Jv, XX, cond_jump_flag },
966 { "jpH", Jv, XX, cond_jump_flag },
967 { "jnpH", Jv, XX, cond_jump_flag },
968 { "jlH", Jv, XX, cond_jump_flag },
969 { "jgeH", Jv, XX, cond_jump_flag },
970 { "jleH", Jv, XX, cond_jump_flag },
971 { "jgH", Jv, XX, cond_jump_flag },
972 /* 90 */
973 { "seto", Eb, XX, XX },
974 { "setno", Eb, XX, XX },
975 { "setb", Eb, XX, XX },
976 { "setae", Eb, XX, XX },
977 { "sete", Eb, XX, XX },
978 { "setne", Eb, XX, XX },
979 { "setbe", Eb, XX, XX },
980 { "seta", Eb, XX, XX },
981 /* 98 */
982 { "sets", Eb, XX, XX },
983 { "setns", Eb, XX, XX },
984 { "setp", Eb, XX, XX },
985 { "setnp", Eb, XX, XX },
986 { "setl", Eb, XX, XX },
987 { "setge", Eb, XX, XX },
988 { "setle", Eb, XX, XX },
989 { "setg", Eb, XX, XX },
990 /* a0 */
991 { "pushT", fs, XX, XX },
992 { "popT", fs, XX, XX },
993 { "cpuid", XX, XX, XX },
994 { "btS", Ev, Gv, XX },
995 { "shldS", Ev, Gv, Ib },
996 { "shldS", Ev, Gv, CL },
997 { GRPPADLCK2 },
998 { GRPPADLCK1 },
999 /* a8 */
1000 { "pushT", gs, XX, XX },
1001 { "popT", gs, XX, XX },
1002 { "rsm", XX, XX, XX },
1003 { "btsS", Ev, Gv, XX },
1004 { "shrdS", Ev, Gv, Ib },
1005 { "shrdS", Ev, Gv, CL },
1006 { GRP13 },
1007 { "imulS", Gv, Ev, XX },
1008 /* b0 */
1009 { "cmpxchgB", Eb, Gb, XX },
1010 { "cmpxchgS", Ev, Gv, XX },
1011 { "lssS", Gv, Mp, XX },
1012 { "btrS", Ev, Gv, XX },
1013 { "lfsS", Gv, Mp, XX },
1014 { "lgsS", Gv, Mp, XX },
1015 { "movz{bR|x|bR|x}", Gv, Eb, XX },
1016 { "movz{wR|x|wR|x}", Gv, Ew, XX }, /* yes, there really is movzww ! */
1017 /* b8 */
1018 { "(bad)", XX, XX, XX },
1019 { "ud2b", XX, XX, XX },
1020 { GRP8 },
1021 { "btcS", Ev, Gv, XX },
1022 { "bsfS", Gv, Ev, XX },
1023 { "bsrS", Gv, Ev, XX },
1024 { "movs{bR|x|bR|x}", Gv, Eb, XX },
1025 { "movs{wR|x|wR|x}", Gv, Ew, XX }, /* yes, there really is movsww ! */
1026 /* c0 */
1027 { "xaddB", Eb, Gb, XX },
1028 { "xaddS", Ev, Gv, XX },
1029 { PREGRP1 },
1030 { "movntiS", Ev, Gv, XX },
1031 { "pinsrw", MX, Edqw, Ib },
1032 { "pextrw", Gdq, MS, Ib },
1033 { "shufpX", XM, EX, Ib },
1034 { GRP9 },
1035 /* c8 */
1036 { "bswap", RMeAX, XX, XX },
1037 { "bswap", RMeCX, XX, XX },
1038 { "bswap", RMeDX, XX, XX },
1039 { "bswap", RMeBX, XX, XX },
1040 { "bswap", RMeSP, XX, XX },
1041 { "bswap", RMeBP, XX, XX },
1042 { "bswap", RMeSI, XX, XX },
1043 { "bswap", RMeDI, XX, XX },
1044 /* d0 */
1045 { PREGRP27 },
1046 { "psrlw", MX, EM, XX },
1047 { "psrld", MX, EM, XX },
1048 { "psrlq", MX, EM, XX },
1049 { "paddq", MX, EM, XX },
1050 { "pmullw", MX, EM, XX },
1051 { PREGRP21 },
1052 { "pmovmskb", Gdq, MS, XX },
1053 /* d8 */
1054 { "psubusb", MX, EM, XX },
1055 { "psubusw", MX, EM, XX },
1056 { "pminub", MX, EM, XX },
1057 { "pand", MX, EM, XX },
1058 { "paddusb", MX, EM, XX },
1059 { "paddusw", MX, EM, XX },
1060 { "pmaxub", MX, EM, XX },
1061 { "pandn", MX, EM, XX },
1062 /* e0 */
1063 { "pavgb", MX, EM, XX },
1064 { "psraw", MX, EM, XX },
1065 { "psrad", MX, EM, XX },
1066 { "pavgw", MX, EM, XX },
1067 { "pmulhuw", MX, EM, XX },
1068 { "pmulhw", MX, EM, XX },
1069 { PREGRP15 },
1070 { PREGRP25 },
1071 /* e8 */
1072 { "psubsb", MX, EM, XX },
1073 { "psubsw", MX, EM, XX },
1074 { "pminsw", MX, EM, XX },
1075 { "por", MX, EM, XX },
1076 { "paddsb", MX, EM, XX },
1077 { "paddsw", MX, EM, XX },
1078 { "pmaxsw", MX, EM, XX },
1079 { "pxor", MX, EM, XX },
1080 /* f0 */
1081 { PREGRP32 },
1082 { "psllw", MX, EM, XX },
1083 { "pslld", MX, EM, XX },
1084 { "psllq", MX, EM, XX },
1085 { "pmuludq", MX, EM, XX },
1086 { "pmaddwd", MX, EM, XX },
1087 { "psadbw", MX, EM, XX },
1088 { PREGRP18 },
1089 /* f8 */
1090 { "psubb", MX, EM, XX },
1091 { "psubw", MX, EM, XX },
1092 { "psubd", MX, EM, XX },
1093 { "psubq", MX, EM, XX },
1094 { "paddb", MX, EM, XX },
1095 { "paddw", MX, EM, XX },
1096 { "paddd", MX, EM, XX },
1097 { "(bad)", XX, XX, XX }
1098 };
1099
1100 static const unsigned char onebyte_has_modrm[256] = {
1101 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1102 /* ------------------------------- */
1103 /* 00 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 00 */
1104 /* 10 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 10 */
1105 /* 20 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 20 */
1106 /* 30 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 30 */
1107 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 40 */
1108 /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 50 */
1109 /* 60 */ 0,0,1,1,0,0,0,0,0,1,0,1,0,0,0,0, /* 60 */
1110 /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 70 */
1111 /* 80 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 80 */
1112 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 90 */
1113 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* a0 */
1114 /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* b0 */
1115 /* c0 */ 1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,0, /* c0 */
1116 /* d0 */ 1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* d0 */
1117 /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* e0 */
1118 /* f0 */ 0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1 /* f0 */
1119 /* ------------------------------- */
1120 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1121 };
1122
1123 static const unsigned char twobyte_has_modrm[256] = {
1124 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1125 /* ------------------------------- */
1126 /* 00 */ 1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,1, /* 0f */
1127 /* 10 */ 1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0, /* 1f */
1128 /* 20 */ 1,1,1,1,1,0,1,0,1,1,1,1,1,1,1,1, /* 2f */
1129 /* 30 */ 0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0, /* 3f */
1130 /* 40 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4f */
1131 /* 50 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 5f */
1132 /* 60 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 6f */
1133 /* 70 */ 1,1,1,1,1,1,1,0,1,1,0,0,1,1,1,1, /* 7f */
1134 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1135 /* 90 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 9f */
1136 /* a0 */ 0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1, /* af */
1137 /* b0 */ 1,1,1,1,1,1,1,1,0,0,1,1,1,1,1,1, /* bf */
1138 /* c0 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* cf */
1139 /* d0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* df */
1140 /* e0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ef */
1141 /* f0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0 /* ff */
1142 /* ------------------------------- */
1143 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1144 };
1145
1146 static const unsigned char twobyte_uses_SSE_prefix[256] = {
1147 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1148 /* ------------------------------- */
1149 /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1150 /* 10 */ 1,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0, /* 1f */
1151 /* 20 */ 0,0,0,0,0,0,0,0,0,0,1,0,1,1,0,0, /* 2f */
1152 /* 30 */ 0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0, /* 3f */
1153 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1154 /* 50 */ 0,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* 5f */
1155 /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1, /* 6f */
1156 /* 70 */ 1,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1, /* 7f */
1157 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1158 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1159 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1160 /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1161 /* c0 */ 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1162 /* d0 */ 1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */
1163 /* e0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* ef */
1164 /* f0 */ 1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0 /* ff */
1165 /* ------------------------------- */
1166 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1167 };
1168
1169 static char obuf[100];
1170 static char *obufp;
1171 static char scratchbuf[100];
1172 static unsigned char *start_codep;
1173 static unsigned char *insn_codep;
1174 static unsigned char *codep;
1175 static disassemble_info *the_info;
1176 static int mod;
1177 static int rm;
1178 static int reg;
1179 static unsigned char need_modrm;
1180
1181 /* If we are accessing mod/rm/reg without need_modrm set, then the
1182 values are stale. Hitting this abort likely indicates that you
1183 need to update onebyte_has_modrm or twobyte_has_modrm. */
1184 #define MODRM_CHECK if (!need_modrm) abort ()
1185
1186 static const char **names64;
1187 static const char **names32;
1188 static const char **names16;
1189 static const char **names8;
1190 static const char **names8rex;
1191 static const char **names_seg;
1192 static const char **index16;
1193
1194 static const char *intel_names64[] = {
1195 "rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi",
1196 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
1197 };
1198 static const char *intel_names32[] = {
1199 "eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi",
1200 "r8d", "r9d", "r10d", "r11d", "r12d", "r13d", "r14d", "r15d"
1201 };
1202 static const char *intel_names16[] = {
1203 "ax", "cx", "dx", "bx", "sp", "bp", "si", "di",
1204 "r8w", "r9w", "r10w", "r11w", "r12w", "r13w", "r14w", "r15w"
1205 };
1206 static const char *intel_names8[] = {
1207 "al", "cl", "dl", "bl", "ah", "ch", "dh", "bh",
1208 };
1209 static const char *intel_names8rex[] = {
1210 "al", "cl", "dl", "bl", "spl", "bpl", "sil", "dil",
1211 "r8b", "r9b", "r10b", "r11b", "r12b", "r13b", "r14b", "r15b"
1212 };
1213 static const char *intel_names_seg[] = {
1214 "es", "cs", "ss", "ds", "fs", "gs", "?", "?",
1215 };
1216 static const char *intel_index16[] = {
1217 "bx+si", "bx+di", "bp+si", "bp+di", "si", "di", "bp", "bx"
1218 };
1219
1220 static const char *att_names64[] = {
1221 "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
1222 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
1223 };
1224 static const char *att_names32[] = {
1225 "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
1226 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d"
1227 };
1228 static const char *att_names16[] = {
1229 "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
1230 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w"
1231 };
1232 static const char *att_names8[] = {
1233 "%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh",
1234 };
1235 static const char *att_names8rex[] = {
1236 "%al", "%cl", "%dl", "%bl", "%spl", "%bpl", "%sil", "%dil",
1237 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b"
1238 };
1239 static const char *att_names_seg[] = {
1240 "%es", "%cs", "%ss", "%ds", "%fs", "%gs", "%?", "%?",
1241 };
1242 static const char *att_index16[] = {
1243 "%bx,%si", "%bx,%di", "%bp,%si", "%bp,%di", "%si", "%di", "%bp", "%bx"
1244 };
1245
1246 static const struct dis386 grps[][8] = {
1247 /* GRP1b */
1248 {
1249 { "addA", Eb, Ib, XX },
1250 { "orA", Eb, Ib, XX },
1251 { "adcA", Eb, Ib, XX },
1252 { "sbbA", Eb, Ib, XX },
1253 { "andA", Eb, Ib, XX },
1254 { "subA", Eb, Ib, XX },
1255 { "xorA", Eb, Ib, XX },
1256 { "cmpA", Eb, Ib, XX }
1257 },
1258 /* GRP1S */
1259 {
1260 { "addQ", Ev, Iv, XX },
1261 { "orQ", Ev, Iv, XX },
1262 { "adcQ", Ev, Iv, XX },
1263 { "sbbQ", Ev, Iv, XX },
1264 { "andQ", Ev, Iv, XX },
1265 { "subQ", Ev, Iv, XX },
1266 { "xorQ", Ev, Iv, XX },
1267 { "cmpQ", Ev, Iv, XX }
1268 },
1269 /* GRP1Ss */
1270 {
1271 { "addQ", Ev, sIb, XX },
1272 { "orQ", Ev, sIb, XX },
1273 { "adcQ", Ev, sIb, XX },
1274 { "sbbQ", Ev, sIb, XX },
1275 { "andQ", Ev, sIb, XX },
1276 { "subQ", Ev, sIb, XX },
1277 { "xorQ", Ev, sIb, XX },
1278 { "cmpQ", Ev, sIb, XX }
1279 },
1280 /* GRP2b */
1281 {
1282 { "rolA", Eb, Ib, XX },
1283 { "rorA", Eb, Ib, XX },
1284 { "rclA", Eb, Ib, XX },
1285 { "rcrA", Eb, Ib, XX },
1286 { "shlA", Eb, Ib, XX },
1287 { "shrA", Eb, Ib, XX },
1288 { "(bad)", XX, XX, XX },
1289 { "sarA", Eb, Ib, XX },
1290 },
1291 /* GRP2S */
1292 {
1293 { "rolQ", Ev, Ib, XX },
1294 { "rorQ", Ev, Ib, XX },
1295 { "rclQ", Ev, Ib, XX },
1296 { "rcrQ", Ev, Ib, XX },
1297 { "shlQ", Ev, Ib, XX },
1298 { "shrQ", Ev, Ib, XX },
1299 { "(bad)", XX, XX, XX },
1300 { "sarQ", Ev, Ib, XX },
1301 },
1302 /* GRP2b_one */
1303 {
1304 { "rolA", Eb, I1, XX },
1305 { "rorA", Eb, I1, XX },
1306 { "rclA", Eb, I1, XX },
1307 { "rcrA", Eb, I1, XX },
1308 { "shlA", Eb, I1, XX },
1309 { "shrA", Eb, I1, XX },
1310 { "(bad)", XX, XX, XX },
1311 { "sarA", Eb, I1, XX },
1312 },
1313 /* GRP2S_one */
1314 {
1315 { "rolQ", Ev, I1, XX },
1316 { "rorQ", Ev, I1, XX },
1317 { "rclQ", Ev, I1, XX },
1318 { "rcrQ", Ev, I1, XX },
1319 { "shlQ", Ev, I1, XX },
1320 { "shrQ", Ev, I1, XX },
1321 { "(bad)", XX, XX, XX},
1322 { "sarQ", Ev, I1, XX },
1323 },
1324 /* GRP2b_cl */
1325 {
1326 { "rolA", Eb, CL, XX },
1327 { "rorA", Eb, CL, XX },
1328 { "rclA", Eb, CL, XX },
1329 { "rcrA", Eb, CL, XX },
1330 { "shlA", Eb, CL, XX },
1331 { "shrA", Eb, CL, XX },
1332 { "(bad)", XX, XX, XX },
1333 { "sarA", Eb, CL, XX },
1334 },
1335 /* GRP2S_cl */
1336 {
1337 { "rolQ", Ev, CL, XX },
1338 { "rorQ", Ev, CL, XX },
1339 { "rclQ", Ev, CL, XX },
1340 { "rcrQ", Ev, CL, XX },
1341 { "shlQ", Ev, CL, XX },
1342 { "shrQ", Ev, CL, XX },
1343 { "(bad)", XX, XX, XX },
1344 { "sarQ", Ev, CL, XX }
1345 },
1346 /* GRP3b */
1347 {
1348 { "testA", Eb, Ib, XX },
1349 { "(bad)", Eb, XX, XX },
1350 { "notA", Eb, XX, XX },
1351 { "negA", Eb, XX, XX },
1352 { "mulA", Eb, XX, XX }, /* Don't print the implicit %al register, */
1353 { "imulA", Eb, XX, XX }, /* to distinguish these opcodes from other */
1354 { "divA", Eb, XX, XX }, /* mul/imul opcodes. Do the same for div */
1355 { "idivA", Eb, XX, XX } /* and idiv for consistency. */
1356 },
1357 /* GRP3S */
1358 {
1359 { "testQ", Ev, Iv, XX },
1360 { "(bad)", XX, XX, XX },
1361 { "notQ", Ev, XX, XX },
1362 { "negQ", Ev, XX, XX },
1363 { "mulQ", Ev, XX, XX }, /* Don't print the implicit register. */
1364 { "imulQ", Ev, XX, XX },
1365 { "divQ", Ev, XX, XX },
1366 { "idivQ", Ev, XX, XX },
1367 },
1368 /* GRP4 */
1369 {
1370 { "incA", Eb, XX, XX },
1371 { "decA", Eb, XX, XX },
1372 { "(bad)", XX, XX, XX },
1373 { "(bad)", XX, XX, XX },
1374 { "(bad)", XX, XX, XX },
1375 { "(bad)", XX, XX, XX },
1376 { "(bad)", XX, XX, XX },
1377 { "(bad)", XX, XX, XX },
1378 },
1379 /* GRP5 */
1380 {
1381 { "incQ", Ev, XX, XX },
1382 { "decQ", Ev, XX, XX },
1383 { "callT", indirEv, XX, XX },
1384 { "JcallT", indirEp, XX, XX },
1385 { "jmpT", indirEv, XX, XX },
1386 { "JjmpT", indirEp, XX, XX },
1387 { "pushU", stackEv, XX, XX },
1388 { "(bad)", XX, XX, XX },
1389 },
1390 /* GRP6 */
1391 {
1392 { "sldtQ", Ev, XX, XX },
1393 { "strQ", Ev, XX, XX },
1394 { "lldt", Ew, XX, XX },
1395 { "ltr", Ew, XX, XX },
1396 { "verr", Ew, XX, XX },
1397 { "verw", Ew, XX, XX },
1398 { "(bad)", XX, XX, XX },
1399 { "(bad)", XX, XX, XX }
1400 },
1401 /* GRP7 */
1402 {
1403 { "sgdtIQ", VMX_Fixup, 0, XX, XX },
1404 { "sidtIQ", PNI_Fixup, 0, XX, XX },
1405 { "lgdt{Q|Q||}", M, XX, XX },
1406 { "lidt{Q|Q||}", SVME_Fixup, 0, XX, XX },
1407 { "smswQ", Ev, XX, XX },
1408 { "(bad)", XX, XX, XX },
1409 { "lmsw", Ew, XX, XX },
1410 { "invlpg", INVLPG_Fixup, w_mode, XX, XX },
1411 },
1412 /* GRP8 */
1413 {
1414 { "(bad)", XX, XX, XX },
1415 { "(bad)", XX, XX, XX },
1416 { "(bad)", XX, XX, XX },
1417 { "(bad)", XX, XX, XX },
1418 { "btQ", Ev, Ib, XX },
1419 { "btsQ", Ev, Ib, XX },
1420 { "btrQ", Ev, Ib, XX },
1421 { "btcQ", Ev, Ib, XX },
1422 },
1423 /* GRP9 */
1424 {
1425 { "(bad)", XX, XX, XX },
1426 { "cmpxchg8b", Eq, XX, XX },
1427 { "(bad)", XX, XX, XX },
1428 { "(bad)", XX, XX, XX },
1429 { "(bad)", XX, XX, XX },
1430 { "(bad)", XX, XX, XX },
1431 { "", VM, XX, XX }, /* See OP_VMX. */
1432 { "vmptrst", Eq, XX, XX },
1433 },
1434 /* GRP10 */
1435 {
1436 { "(bad)", XX, XX, XX },
1437 { "(bad)", XX, XX, XX },
1438 { "psrlw", MS, Ib, XX },
1439 { "(bad)", XX, XX, XX },
1440 { "psraw", MS, Ib, XX },
1441 { "(bad)", XX, XX, XX },
1442 { "psllw", MS, Ib, XX },
1443 { "(bad)", XX, XX, XX },
1444 },
1445 /* GRP11 */
1446 {
1447 { "(bad)", XX, XX, XX },
1448 { "(bad)", XX, XX, XX },
1449 { "psrld", MS, Ib, XX },
1450 { "(bad)", XX, XX, XX },
1451 { "psrad", MS, Ib, XX },
1452 { "(bad)", XX, XX, XX },
1453 { "pslld", MS, Ib, XX },
1454 { "(bad)", XX, XX, XX },
1455 },
1456 /* GRP12 */
1457 {
1458 { "(bad)", XX, XX, XX },
1459 { "(bad)", XX, XX, XX },
1460 { "psrlq", MS, Ib, XX },
1461 { "psrldq", MS, Ib, XX },
1462 { "(bad)", XX, XX, XX },
1463 { "(bad)", XX, XX, XX },
1464 { "psllq", MS, Ib, XX },
1465 { "pslldq", MS, Ib, XX },
1466 },
1467 /* GRP13 */
1468 {
1469 { "fxsave", Ev, XX, XX },
1470 { "fxrstor", Ev, XX, XX },
1471 { "ldmxcsr", Ev, XX, XX },
1472 { "stmxcsr", Ev, XX, XX },
1473 { "(bad)", XX, XX, XX },
1474 { "lfence", OP_0fae, 0, XX, XX },
1475 { "mfence", OP_0fae, 0, XX, XX },
1476 { "clflush", OP_0fae, 0, XX, XX },
1477 },
1478 /* GRP14 */
1479 {
1480 { "prefetchnta", Ev, XX, XX },
1481 { "prefetcht0", Ev, XX, XX },
1482 { "prefetcht1", Ev, XX, XX },
1483 { "prefetcht2", Ev, XX, XX },
1484 { "(bad)", XX, XX, XX },
1485 { "(bad)", XX, XX, XX },
1486 { "(bad)", XX, XX, XX },
1487 { "(bad)", XX, XX, XX },
1488 },
1489 /* GRPAMD */
1490 {
1491 { "prefetch", Eb, XX, XX },
1492 { "prefetchw", Eb, XX, XX },
1493 { "(bad)", XX, XX, XX },
1494 { "(bad)", XX, XX, XX },
1495 { "(bad)", XX, XX, XX },
1496 { "(bad)", XX, XX, XX },
1497 { "(bad)", XX, XX, XX },
1498 { "(bad)", XX, XX, XX },
1499 },
1500 /* GRPPADLCK1 */
1501 {
1502 { "xstore-rng", OP_0f07, 0, XX, XX },
1503 { "xcrypt-ecb", OP_0f07, 0, XX, XX },
1504 { "xcrypt-cbc", OP_0f07, 0, XX, XX },
1505 { "xcrypt-ctr", OP_0f07, 0, XX, XX },
1506 { "xcrypt-cfb", OP_0f07, 0, XX, XX },
1507 { "xcrypt-ofb", OP_0f07, 0, XX, XX },
1508 { "(bad)", OP_0f07, 0, XX, XX },
1509 { "(bad)", OP_0f07, 0, XX, XX },
1510 },
1511 /* GRPPADLCK2 */
1512 {
1513 { "montmul", OP_0f07, 0, XX, XX },
1514 { "xsha1", OP_0f07, 0, XX, XX },
1515 { "xsha256", OP_0f07, 0, XX, XX },
1516 { "(bad)", OP_0f07, 0, XX, XX },
1517 { "(bad)", OP_0f07, 0, XX, XX },
1518 { "(bad)", OP_0f07, 0, XX, XX },
1519 { "(bad)", OP_0f07, 0, XX, XX },
1520 { "(bad)", OP_0f07, 0, XX, XX },
1521 }
1522 };
1523
1524 static const struct dis386 prefix_user_table[][4] = {
1525 /* PREGRP0 */
1526 {
1527 { "addps", XM, EX, XX },
1528 { "addss", XM, EX, XX },
1529 { "addpd", XM, EX, XX },
1530 { "addsd", XM, EX, XX },
1531 },
1532 /* PREGRP1 */
1533 {
1534 { "", XM, EX, OPSIMD }, /* See OP_SIMD_SUFFIX. */
1535 { "", XM, EX, OPSIMD },
1536 { "", XM, EX, OPSIMD },
1537 { "", XM, EX, OPSIMD },
1538 },
1539 /* PREGRP2 */
1540 {
1541 { "cvtpi2ps", XM, EM, XX },
1542 { "cvtsi2ssY", XM, Ev, XX },
1543 { "cvtpi2pd", XM, EM, XX },
1544 { "cvtsi2sdY", XM, Ev, XX },
1545 },
1546 /* PREGRP3 */
1547 {
1548 { "cvtps2pi", MX, EX, XX },
1549 { "cvtss2siY", Gv, EX, XX },
1550 { "cvtpd2pi", MX, EX, XX },
1551 { "cvtsd2siY", Gv, EX, XX },
1552 },
1553 /* PREGRP4 */
1554 {
1555 { "cvttps2pi", MX, EX, XX },
1556 { "cvttss2siY", Gv, EX, XX },
1557 { "cvttpd2pi", MX, EX, XX },
1558 { "cvttsd2siY", Gv, EX, XX },
1559 },
1560 /* PREGRP5 */
1561 {
1562 { "divps", XM, EX, XX },
1563 { "divss", XM, EX, XX },
1564 { "divpd", XM, EX, XX },
1565 { "divsd", XM, EX, XX },
1566 },
1567 /* PREGRP6 */
1568 {
1569 { "maxps", XM, EX, XX },
1570 { "maxss", XM, EX, XX },
1571 { "maxpd", XM, EX, XX },
1572 { "maxsd", XM, EX, XX },
1573 },
1574 /* PREGRP7 */
1575 {
1576 { "minps", XM, EX, XX },
1577 { "minss", XM, EX, XX },
1578 { "minpd", XM, EX, XX },
1579 { "minsd", XM, EX, XX },
1580 },
1581 /* PREGRP8 */
1582 {
1583 { "movups", XM, EX, XX },
1584 { "movss", XM, EX, XX },
1585 { "movupd", XM, EX, XX },
1586 { "movsd", XM, EX, XX },
1587 },
1588 /* PREGRP9 */
1589 {
1590 { "movups", EX, XM, XX },
1591 { "movss", EX, XM, XX },
1592 { "movupd", EX, XM, XX },
1593 { "movsd", EX, XM, XX },
1594 },
1595 /* PREGRP10 */
1596 {
1597 { "mulps", XM, EX, XX },
1598 { "mulss", XM, EX, XX },
1599 { "mulpd", XM, EX, XX },
1600 { "mulsd", XM, EX, XX },
1601 },
1602 /* PREGRP11 */
1603 {
1604 { "rcpps", XM, EX, XX },
1605 { "rcpss", XM, EX, XX },
1606 { "(bad)", XM, EX, XX },
1607 { "(bad)", XM, EX, XX },
1608 },
1609 /* PREGRP12 */
1610 {
1611 { "rsqrtps", XM, EX, XX },
1612 { "rsqrtss", XM, EX, XX },
1613 { "(bad)", XM, EX, XX },
1614 { "(bad)", XM, EX, XX },
1615 },
1616 /* PREGRP13 */
1617 {
1618 { "sqrtps", XM, EX, XX },
1619 { "sqrtss", XM, EX, XX },
1620 { "sqrtpd", XM, EX, XX },
1621 { "sqrtsd", XM, EX, XX },
1622 },
1623 /* PREGRP14 */
1624 {
1625 { "subps", XM, EX, XX },
1626 { "subss", XM, EX, XX },
1627 { "subpd", XM, EX, XX },
1628 { "subsd", XM, EX, XX },
1629 },
1630 /* PREGRP15 */
1631 {
1632 { "(bad)", XM, EX, XX },
1633 { "cvtdq2pd", XM, EX, XX },
1634 { "cvttpd2dq", XM, EX, XX },
1635 { "cvtpd2dq", XM, EX, XX },
1636 },
1637 /* PREGRP16 */
1638 {
1639 { "cvtdq2ps", XM, EX, XX },
1640 { "cvttps2dq",XM, EX, XX },
1641 { "cvtps2dq",XM, EX, XX },
1642 { "(bad)", XM, EX, XX },
1643 },
1644 /* PREGRP17 */
1645 {
1646 { "cvtps2pd", XM, EX, XX },
1647 { "cvtss2sd", XM, EX, XX },
1648 { "cvtpd2ps", XM, EX, XX },
1649 { "cvtsd2ss", XM, EX, XX },
1650 },
1651 /* PREGRP18 */
1652 {
1653 { "maskmovq", MX, MS, XX },
1654 { "(bad)", XM, EX, XX },
1655 { "maskmovdqu", XM, EX, XX },
1656 { "(bad)", XM, EX, XX },
1657 },
1658 /* PREGRP19 */
1659 {
1660 { "movq", MX, EM, XX },
1661 { "movdqu", XM, EX, XX },
1662 { "movdqa", XM, EX, XX },
1663 { "(bad)", XM, EX, XX },
1664 },
1665 /* PREGRP20 */
1666 {
1667 { "movq", EM, MX, XX },
1668 { "movdqu", EX, XM, XX },
1669 { "movdqa", EX, XM, XX },
1670 { "(bad)", EX, XM, XX },
1671 },
1672 /* PREGRP21 */
1673 {
1674 { "(bad)", EX, XM, XX },
1675 { "movq2dq", XM, MS, XX },
1676 { "movq", EX, XM, XX },
1677 { "movdq2q", MX, XS, XX },
1678 },
1679 /* PREGRP22 */
1680 {
1681 { "pshufw", MX, EM, Ib },
1682 { "pshufhw", XM, EX, Ib },
1683 { "pshufd", XM, EX, Ib },
1684 { "pshuflw", XM, EX, Ib },
1685 },
1686 /* PREGRP23 */
1687 {
1688 { "movd", Edq, MX, XX },
1689 { "movq", XM, EX, XX },
1690 { "movd", Edq, XM, XX },
1691 { "(bad)", Ed, XM, XX },
1692 },
1693 /* PREGRP24 */
1694 {
1695 { "(bad)", MX, EX, XX },
1696 { "(bad)", XM, EX, XX },
1697 { "punpckhqdq", XM, EX, XX },
1698 { "(bad)", XM, EX, XX },
1699 },
1700 /* PREGRP25 */
1701 {
1702 { "movntq", EM, MX, XX },
1703 { "(bad)", EM, XM, XX },
1704 { "movntdq", EM, XM, XX },
1705 { "(bad)", EM, XM, XX },
1706 },
1707 /* PREGRP26 */
1708 {
1709 { "(bad)", MX, EX, XX },
1710 { "(bad)", XM, EX, XX },
1711 { "punpcklqdq", XM, EX, XX },
1712 { "(bad)", XM, EX, XX },
1713 },
1714 /* PREGRP27 */
1715 {
1716 { "(bad)", MX, EX, XX },
1717 { "(bad)", XM, EX, XX },
1718 { "addsubpd", XM, EX, XX },
1719 { "addsubps", XM, EX, XX },
1720 },
1721 /* PREGRP28 */
1722 {
1723 { "(bad)", MX, EX, XX },
1724 { "(bad)", XM, EX, XX },
1725 { "haddpd", XM, EX, XX },
1726 { "haddps", XM, EX, XX },
1727 },
1728 /* PREGRP29 */
1729 {
1730 { "(bad)", MX, EX, XX },
1731 { "(bad)", XM, EX, XX },
1732 { "hsubpd", XM, EX, XX },
1733 { "hsubps", XM, EX, XX },
1734 },
1735 /* PREGRP30 */
1736 {
1737 { "movlpX", XM, EX, SIMD_Fixup, 'h' }, /* really only 2 operands */
1738 { "movsldup", XM, EX, XX },
1739 { "movlpd", XM, EX, XX },
1740 { "movddup", XM, EX, XX },
1741 },
1742 /* PREGRP31 */
1743 {
1744 { "movhpX", XM, EX, SIMD_Fixup, 'l' },
1745 { "movshdup", XM, EX, XX },
1746 { "movhpd", XM, EX, XX },
1747 { "(bad)", XM, EX, XX },
1748 },
1749 /* PREGRP32 */
1750 {
1751 { "(bad)", XM, EX, XX },
1752 { "(bad)", XM, EX, XX },
1753 { "(bad)", XM, EX, XX },
1754 { "lddqu", XM, M, XX },
1755 },
1756 };
1757
1758 static const struct dis386 x86_64_table[][2] = {
1759 {
1760 { "arpl", Ew, Gw, XX },
1761 { "movs{||lq|xd}", Gv, Ed, XX },
1762 },
1763 };
1764
1765 static const struct dis386 three_byte_table[][32] = {
1766 /* THREE_BYTE_0 */
1767 {
1768 { "pshufb", MX, EM, XX },
1769 { "phaddw", MX, EM, XX },
1770 { "phaddd", MX, EM, XX },
1771 { "phaddsw", MX, EM, XX },
1772 { "pmaddubsw", MX, EM, XX },
1773 { "phsubw", MX, EM, XX },
1774 { "phsubd", MX, EM, XX },
1775 { "phsubsw", MX, EM, XX },
1776 { "psignb", MX, EM, XX },
1777 { "psignw", MX, EM, XX },
1778 { "psignd", MX, EM, XX },
1779 { "pmulhrsw", MX, EM, XX },
1780 { "(bad)", XX, XX, XX },
1781 { "(bad)", XX, XX, XX },
1782 { "(bad)", XX, XX, XX },
1783 { "(bad)", XX, XX, XX },
1784 { "(bad)", XX, XX, XX },
1785 { "(bad)", XX, XX, XX },
1786 { "(bad)", XX, XX, XX },
1787 { "(bad)", XX, XX, XX },
1788 { "(bad)", XX, XX, XX },
1789 { "(bad)", XX, XX, XX },
1790 { "(bad)", XX, XX, XX },
1791 { "(bad)", XX, XX, XX },
1792 { "(bad)", XX, XX, XX },
1793 { "(bad)", XX, XX, XX },
1794 { "(bad)", XX, XX, XX },
1795 { "(bad)", XX, XX, XX },
1796 { "pabsb", MX, EM, XX },
1797 { "pabsw", MX, EM, XX },
1798 { "pabsd", MX, EM, XX },
1799 { "(bad)", XX, XX, XX }
1800 },
1801 /* THREE_BYTE_1 */
1802 {
1803 { "(bad)", XX, XX, XX },
1804 { "(bad)", XX, XX, XX },
1805 { "(bad)", XX, XX, XX },
1806 { "(bad)", XX, XX, XX },
1807 { "(bad)", XX, XX, XX },
1808 { "(bad)", XX, XX, XX },
1809 { "(bad)", XX, XX, XX },
1810 { "(bad)", XX, XX, XX },
1811 { "(bad)", XX, XX, XX },
1812 { "(bad)", XX, XX, XX },
1813 { "(bad)", XX, XX, XX },
1814 { "(bad)", XX, XX, XX },
1815 { "(bad)", XX, XX, XX },
1816 { "(bad)", XX, XX, XX },
1817 { "(bad)", XX, XX, XX },
1818 { "palignr", MX, EM, Ib },
1819 { "(bad)", XX, XX, XX },
1820 { "(bad)", XX, XX, XX },
1821 { "(bad)", XX, XX, XX },
1822 { "(bad)", XX, XX, XX },
1823 { "(bad)", XX, XX, XX },
1824 { "(bad)", XX, XX, XX },
1825 { "(bad)", XX, XX, XX },
1826 { "(bad)", XX, XX, XX },
1827 { "(bad)", XX, XX, XX },
1828 { "(bad)", XX, XX, XX },
1829 { "(bad)", XX, XX, XX },
1830 { "(bad)", XX, XX, XX },
1831 { "(bad)", XX, XX, XX },
1832 { "(bad)", XX, XX, XX },
1833 { "(bad)", XX, XX, XX },
1834 { "(bad)", XX, XX, XX }
1835 },
1836 };
1837
1838 #define INTERNAL_DISASSEMBLER_ERROR _("<internal disassembler error>")
1839
1840 static void
1841 ckprefix (void)
1842 {
1843 int newrex;
1844 rex = 0;
1845 prefixes = 0;
1846 used_prefixes = 0;
1847 rex_used = 0;
1848 while (1)
1849 {
1850 FETCH_DATA (the_info, codep + 1);
1851 newrex = 0;
1852 switch (*codep)
1853 {
1854 /* REX prefixes family. */
1855 case 0x40:
1856 case 0x41:
1857 case 0x42:
1858 case 0x43:
1859 case 0x44:
1860 case 0x45:
1861 case 0x46:
1862 case 0x47:
1863 case 0x48:
1864 case 0x49:
1865 case 0x4a:
1866 case 0x4b:
1867 case 0x4c:
1868 case 0x4d:
1869 case 0x4e:
1870 case 0x4f:
1871 if (address_mode == mode_64bit)
1872 newrex = *codep;
1873 else
1874 return;
1875 break;
1876 case 0xf3:
1877 prefixes |= PREFIX_REPZ;
1878 break;
1879 case 0xf2:
1880 prefixes |= PREFIX_REPNZ;
1881 break;
1882 case 0xf0:
1883 prefixes |= PREFIX_LOCK;
1884 break;
1885 case 0x2e:
1886 prefixes |= PREFIX_CS;
1887 break;
1888 case 0x36:
1889 prefixes |= PREFIX_SS;
1890 break;
1891 case 0x3e:
1892 prefixes |= PREFIX_DS;
1893 break;
1894 case 0x26:
1895 prefixes |= PREFIX_ES;
1896 break;
1897 case 0x64:
1898 prefixes |= PREFIX_FS;
1899 break;
1900 case 0x65:
1901 prefixes |= PREFIX_GS;
1902 break;
1903 case 0x66:
1904 prefixes |= PREFIX_DATA;
1905 break;
1906 case 0x67:
1907 prefixes |= PREFIX_ADDR;
1908 break;
1909 case FWAIT_OPCODE:
1910 /* fwait is really an instruction. If there are prefixes
1911 before the fwait, they belong to the fwait, *not* to the
1912 following instruction. */
1913 if (prefixes || rex)
1914 {
1915 prefixes |= PREFIX_FWAIT;
1916 codep++;
1917 return;
1918 }
1919 prefixes = PREFIX_FWAIT;
1920 break;
1921 default:
1922 return;
1923 }
1924 /* Rex is ignored when followed by another prefix. */
1925 if (rex)
1926 {
1927 rex_used = rex;
1928 return;
1929 }
1930 rex = newrex;
1931 codep++;
1932 }
1933 }
1934
1935 /* Return the name of the prefix byte PREF, or NULL if PREF is not a
1936 prefix byte. */
1937
1938 static const char *
1939 prefix_name (int pref, int sizeflag)
1940 {
1941 switch (pref)
1942 {
1943 /* REX prefixes family. */
1944 case 0x40:
1945 return "rex";
1946 case 0x41:
1947 return "rexZ";
1948 case 0x42:
1949 return "rexY";
1950 case 0x43:
1951 return "rexYZ";
1952 case 0x44:
1953 return "rexX";
1954 case 0x45:
1955 return "rexXZ";
1956 case 0x46:
1957 return "rexXY";
1958 case 0x47:
1959 return "rexXYZ";
1960 case 0x48:
1961 return "rex64";
1962 case 0x49:
1963 return "rex64Z";
1964 case 0x4a:
1965 return "rex64Y";
1966 case 0x4b:
1967 return "rex64YZ";
1968 case 0x4c:
1969 return "rex64X";
1970 case 0x4d:
1971 return "rex64XZ";
1972 case 0x4e:
1973 return "rex64XY";
1974 case 0x4f:
1975 return "rex64XYZ";
1976 case 0xf3:
1977 return "repz";
1978 case 0xf2:
1979 return "repnz";
1980 case 0xf0:
1981 return "lock";
1982 case 0x2e:
1983 return "cs";
1984 case 0x36:
1985 return "ss";
1986 case 0x3e:
1987 return "ds";
1988 case 0x26:
1989 return "es";
1990 case 0x64:
1991 return "fs";
1992 case 0x65:
1993 return "gs";
1994 case 0x66:
1995 return (sizeflag & DFLAG) ? "data16" : "data32";
1996 case 0x67:
1997 if (address_mode == mode_64bit)
1998 return (sizeflag & AFLAG) ? "addr32" : "addr64";
1999 else
2000 return (sizeflag & AFLAG) ? "addr16" : "addr32";
2001 case FWAIT_OPCODE:
2002 return "fwait";
2003 default:
2004 return NULL;
2005 }
2006 }
2007
2008 static char op1out[100], op2out[100], op3out[100];
2009 static int op_ad, op_index[3];
2010 static int two_source_ops;
2011 static bfd_vma op_address[3];
2012 static bfd_vma op_riprel[3];
2013 static bfd_vma start_pc;
2014 \f
2015 /*
2016 * On the 386's of 1988, the maximum length of an instruction is 15 bytes.
2017 * (see topic "Redundant prefixes" in the "Differences from 8086"
2018 * section of the "Virtual 8086 Mode" chapter.)
2019 * 'pc' should be the address of this instruction, it will
2020 * be used to print the target address if this is a relative jump or call
2021 * The function returns the length of this instruction in bytes.
2022 */
2023
2024 static char intel_syntax;
2025 static char open_char;
2026 static char close_char;
2027 static char separator_char;
2028 static char scale_char;
2029
2030 /* Here for backwards compatibility. When gdb stops using
2031 print_insn_i386_att and print_insn_i386_intel these functions can
2032 disappear, and print_insn_i386 be merged into print_insn. */
2033 int
2034 print_insn_i386_att (bfd_vma pc, disassemble_info *info)
2035 {
2036 intel_syntax = 0;
2037
2038 return print_insn (pc, info);
2039 }
2040
2041 int
2042 print_insn_i386_intel (bfd_vma pc, disassemble_info *info)
2043 {
2044 intel_syntax = 1;
2045
2046 return print_insn (pc, info);
2047 }
2048
2049 int
2050 print_insn_i386 (bfd_vma pc, disassemble_info *info)
2051 {
2052 intel_syntax = -1;
2053
2054 return print_insn (pc, info);
2055 }
2056
2057 static int
2058 print_insn (bfd_vma pc, disassemble_info *info)
2059 {
2060 const struct dis386 *dp;
2061 int i;
2062 char *first, *second, *third;
2063 int needcomma;
2064 unsigned char uses_SSE_prefix, uses_LOCK_prefix;
2065 int sizeflag;
2066 const char *p;
2067 struct dis_private priv;
2068
2069 if (info->mach == bfd_mach_x86_64_intel_syntax
2070 || info->mach == bfd_mach_x86_64)
2071 address_mode = mode_64bit;
2072 else
2073 address_mode = mode_32bit;
2074
2075 if (intel_syntax == (char) -1)
2076 intel_syntax = (info->mach == bfd_mach_i386_i386_intel_syntax
2077 || info->mach == bfd_mach_x86_64_intel_syntax);
2078
2079 if (info->mach == bfd_mach_i386_i386
2080 || info->mach == bfd_mach_x86_64
2081 || info->mach == bfd_mach_i386_i386_intel_syntax
2082 || info->mach == bfd_mach_x86_64_intel_syntax)
2083 priv.orig_sizeflag = AFLAG | DFLAG;
2084 else if (info->mach == bfd_mach_i386_i8086)
2085 priv.orig_sizeflag = 0;
2086 else
2087 abort ();
2088
2089 for (p = info->disassembler_options; p != NULL; )
2090 {
2091 if (strncmp (p, "x86-64", 6) == 0)
2092 {
2093 address_mode = mode_64bit;
2094 priv.orig_sizeflag = AFLAG | DFLAG;
2095 }
2096 else if (strncmp (p, "i386", 4) == 0)
2097 {
2098 address_mode = mode_32bit;
2099 priv.orig_sizeflag = AFLAG | DFLAG;
2100 }
2101 else if (strncmp (p, "i8086", 5) == 0)
2102 {
2103 address_mode = mode_16bit;
2104 priv.orig_sizeflag = 0;
2105 }
2106 else if (strncmp (p, "intel", 5) == 0)
2107 {
2108 intel_syntax = 1;
2109 }
2110 else if (strncmp (p, "att", 3) == 0)
2111 {
2112 intel_syntax = 0;
2113 }
2114 else if (strncmp (p, "addr", 4) == 0)
2115 {
2116 if (p[4] == '1' && p[5] == '6')
2117 priv.orig_sizeflag &= ~AFLAG;
2118 else if (p[4] == '3' && p[5] == '2')
2119 priv.orig_sizeflag |= AFLAG;
2120 }
2121 else if (strncmp (p, "data", 4) == 0)
2122 {
2123 if (p[4] == '1' && p[5] == '6')
2124 priv.orig_sizeflag &= ~DFLAG;
2125 else if (p[4] == '3' && p[5] == '2')
2126 priv.orig_sizeflag |= DFLAG;
2127 }
2128 else if (strncmp (p, "suffix", 6) == 0)
2129 priv.orig_sizeflag |= SUFFIX_ALWAYS;
2130
2131 p = strchr (p, ',');
2132 if (p != NULL)
2133 p++;
2134 }
2135
2136 if (intel_syntax)
2137 {
2138 names64 = intel_names64;
2139 names32 = intel_names32;
2140 names16 = intel_names16;
2141 names8 = intel_names8;
2142 names8rex = intel_names8rex;
2143 names_seg = intel_names_seg;
2144 index16 = intel_index16;
2145 open_char = '[';
2146 close_char = ']';
2147 separator_char = '+';
2148 scale_char = '*';
2149 }
2150 else
2151 {
2152 names64 = att_names64;
2153 names32 = att_names32;
2154 names16 = att_names16;
2155 names8 = att_names8;
2156 names8rex = att_names8rex;
2157 names_seg = att_names_seg;
2158 index16 = att_index16;
2159 open_char = '(';
2160 close_char = ')';
2161 separator_char = ',';
2162 scale_char = ',';
2163 }
2164
2165 /* The output looks better if we put 7 bytes on a line, since that
2166 puts most long word instructions on a single line. */
2167 info->bytes_per_line = 7;
2168
2169 info->private_data = &priv;
2170 priv.max_fetched = priv.the_buffer;
2171 priv.insn_start = pc;
2172
2173 obuf[0] = 0;
2174 op1out[0] = 0;
2175 op2out[0] = 0;
2176 op3out[0] = 0;
2177
2178 op_index[0] = op_index[1] = op_index[2] = -1;
2179
2180 the_info = info;
2181 start_pc = pc;
2182 start_codep = priv.the_buffer;
2183 codep = priv.the_buffer;
2184
2185 if (setjmp (priv.bailout) != 0)
2186 {
2187 const char *name;
2188
2189 /* Getting here means we tried for data but didn't get it. That
2190 means we have an incomplete instruction of some sort. Just
2191 print the first byte as a prefix or a .byte pseudo-op. */
2192 if (codep > priv.the_buffer)
2193 {
2194 name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag);
2195 if (name != NULL)
2196 (*info->fprintf_func) (info->stream, "%s", name);
2197 else
2198 {
2199 /* Just print the first byte as a .byte instruction. */
2200 (*info->fprintf_func) (info->stream, ".byte 0x%x",
2201 (unsigned int) priv.the_buffer[0]);
2202 }
2203
2204 return 1;
2205 }
2206
2207 return -1;
2208 }
2209
2210 obufp = obuf;
2211 ckprefix ();
2212
2213 insn_codep = codep;
2214 sizeflag = priv.orig_sizeflag;
2215
2216 FETCH_DATA (info, codep + 1);
2217 two_source_ops = (*codep == 0x62) || (*codep == 0xc8);
2218
2219 if (((prefixes & PREFIX_FWAIT)
2220 && ((*codep < 0xd8) || (*codep > 0xdf)))
2221 || (rex && rex_used))
2222 {
2223 const char *name;
2224
2225 /* fwait not followed by floating point instruction, or rex followed
2226 by other prefixes. Print the first prefix. */
2227 name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag);
2228 if (name == NULL)
2229 name = INTERNAL_DISASSEMBLER_ERROR;
2230 (*info->fprintf_func) (info->stream, "%s", name);
2231 return 1;
2232 }
2233
2234 if (*codep == 0x0f)
2235 {
2236 FETCH_DATA (info, codep + 2);
2237 dp = &dis386_twobyte[*++codep];
2238 need_modrm = twobyte_has_modrm[*codep];
2239 uses_SSE_prefix = twobyte_uses_SSE_prefix[*codep];
2240 uses_LOCK_prefix = (*codep & ~0x02) == 0x20;
2241 }
2242 else
2243 {
2244 dp = &dis386[*codep];
2245 need_modrm = onebyte_has_modrm[*codep];
2246 uses_SSE_prefix = 0;
2247 uses_LOCK_prefix = 0;
2248 }
2249 codep++;
2250
2251 if (!uses_SSE_prefix && (prefixes & PREFIX_REPZ))
2252 {
2253 oappend ("repz ");
2254 used_prefixes |= PREFIX_REPZ;
2255 }
2256 if (!uses_SSE_prefix && (prefixes & PREFIX_REPNZ))
2257 {
2258 oappend ("repnz ");
2259 used_prefixes |= PREFIX_REPNZ;
2260 }
2261 if (!uses_LOCK_prefix && (prefixes & PREFIX_LOCK))
2262 {
2263 oappend ("lock ");
2264 used_prefixes |= PREFIX_LOCK;
2265 }
2266
2267 if (prefixes & PREFIX_ADDR)
2268 {
2269 sizeflag ^= AFLAG;
2270 if (dp->bytemode3 != loop_jcxz_mode || intel_syntax)
2271 {
2272 if ((sizeflag & AFLAG) || address_mode == mode_64bit)
2273 oappend ("addr32 ");
2274 else
2275 oappend ("addr16 ");
2276 used_prefixes |= PREFIX_ADDR;
2277 }
2278 }
2279
2280 if (!uses_SSE_prefix && (prefixes & PREFIX_DATA))
2281 {
2282 sizeflag ^= DFLAG;
2283 if (dp->bytemode3 == cond_jump_mode
2284 && dp->bytemode1 == v_mode
2285 && !intel_syntax)
2286 {
2287 if (sizeflag & DFLAG)
2288 oappend ("data32 ");
2289 else
2290 oappend ("data16 ");
2291 used_prefixes |= PREFIX_DATA;
2292 }
2293 }
2294
2295 if (dp->name == NULL && dp->bytemode1 == IS_3BYTE_OPCODE)
2296 {
2297 FETCH_DATA (info, codep + 2);
2298 dp = &three_byte_table[dp->bytemode2][*codep++];
2299 mod = (*codep >> 6) & 3;
2300 reg = (*codep >> 3) & 7;
2301 rm = *codep & 7;
2302 }
2303 else if (need_modrm)
2304 {
2305 FETCH_DATA (info, codep + 1);
2306 mod = (*codep >> 6) & 3;
2307 reg = (*codep >> 3) & 7;
2308 rm = *codep & 7;
2309 }
2310
2311 if (dp->name == NULL && dp->bytemode1 == FLOATCODE)
2312 {
2313 dofloat (sizeflag);
2314 }
2315 else
2316 {
2317 int index;
2318 if (dp->name == NULL)
2319 {
2320 switch (dp->bytemode1)
2321 {
2322 case USE_GROUPS:
2323 dp = &grps[dp->bytemode2][reg];
2324 break;
2325
2326 case USE_PREFIX_USER_TABLE:
2327 index = 0;
2328 used_prefixes |= (prefixes & PREFIX_REPZ);
2329 if (prefixes & PREFIX_REPZ)
2330 index = 1;
2331 else
2332 {
2333 used_prefixes |= (prefixes & PREFIX_DATA);
2334 if (prefixes & PREFIX_DATA)
2335 index = 2;
2336 else
2337 {
2338 used_prefixes |= (prefixes & PREFIX_REPNZ);
2339 if (prefixes & PREFIX_REPNZ)
2340 index = 3;
2341 }
2342 }
2343 dp = &prefix_user_table[dp->bytemode2][index];
2344 break;
2345
2346 case X86_64_SPECIAL:
2347 index = address_mode == mode_64bit ? 1 : 0;
2348 dp = &x86_64_table[dp->bytemode2][index];
2349 break;
2350
2351 default:
2352 oappend (INTERNAL_DISASSEMBLER_ERROR);
2353 break;
2354 }
2355 }
2356
2357 if (putop (dp->name, sizeflag) == 0)
2358 {
2359 obufp = op1out;
2360 op_ad = 2;
2361 if (dp->op1)
2362 (*dp->op1) (dp->bytemode1, sizeflag);
2363
2364 obufp = op2out;
2365 op_ad = 1;
2366 if (dp->op2)
2367 (*dp->op2) (dp->bytemode2, sizeflag);
2368
2369 obufp = op3out;
2370 op_ad = 0;
2371 if (dp->op3)
2372 (*dp->op3) (dp->bytemode3, sizeflag);
2373 }
2374 }
2375
2376 /* See if any prefixes were not used. If so, print the first one
2377 separately. If we don't do this, we'll wind up printing an
2378 instruction stream which does not precisely correspond to the
2379 bytes we are disassembling. */
2380 if ((prefixes & ~used_prefixes) != 0)
2381 {
2382 const char *name;
2383
2384 name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag);
2385 if (name == NULL)
2386 name = INTERNAL_DISASSEMBLER_ERROR;
2387 (*info->fprintf_func) (info->stream, "%s", name);
2388 return 1;
2389 }
2390 if (rex & ~rex_used)
2391 {
2392 const char *name;
2393 name = prefix_name (rex | 0x40, priv.orig_sizeflag);
2394 if (name == NULL)
2395 name = INTERNAL_DISASSEMBLER_ERROR;
2396 (*info->fprintf_func) (info->stream, "%s ", name);
2397 }
2398
2399 obufp = obuf + strlen (obuf);
2400 for (i = strlen (obuf); i < 6; i++)
2401 oappend (" ");
2402 oappend (" ");
2403 (*info->fprintf_func) (info->stream, "%s", obuf);
2404
2405 /* The enter and bound instructions are printed with operands in the same
2406 order as the intel book; everything else is printed in reverse order. */
2407 if (intel_syntax || two_source_ops)
2408 {
2409 first = op1out;
2410 second = op2out;
2411 third = op3out;
2412 op_ad = op_index[0];
2413 op_index[0] = op_index[2];
2414 op_index[2] = op_ad;
2415 }
2416 else
2417 {
2418 first = op3out;
2419 second = op2out;
2420 third = op1out;
2421 }
2422 needcomma = 0;
2423 if (*first)
2424 {
2425 if (op_index[0] != -1 && !op_riprel[0])
2426 (*info->print_address_func) ((bfd_vma) op_address[op_index[0]], info);
2427 else
2428 (*info->fprintf_func) (info->stream, "%s", first);
2429 needcomma = 1;
2430 }
2431 if (*second)
2432 {
2433 if (needcomma)
2434 (*info->fprintf_func) (info->stream, ",");
2435 if (op_index[1] != -1 && !op_riprel[1])
2436 (*info->print_address_func) ((bfd_vma) op_address[op_index[1]], info);
2437 else
2438 (*info->fprintf_func) (info->stream, "%s", second);
2439 needcomma = 1;
2440 }
2441 if (*third)
2442 {
2443 if (needcomma)
2444 (*info->fprintf_func) (info->stream, ",");
2445 if (op_index[2] != -1 && !op_riprel[2])
2446 (*info->print_address_func) ((bfd_vma) op_address[op_index[2]], info);
2447 else
2448 (*info->fprintf_func) (info->stream, "%s", third);
2449 }
2450 for (i = 0; i < 3; i++)
2451 if (op_index[i] != -1 && op_riprel[i])
2452 {
2453 (*info->fprintf_func) (info->stream, " # ");
2454 (*info->print_address_func) ((bfd_vma) (start_pc + codep - start_codep
2455 + op_address[op_index[i]]), info);
2456 }
2457 return codep - priv.the_buffer;
2458 }
2459
2460 static const char *float_mem[] = {
2461 /* d8 */
2462 "fadd{s||s|}",
2463 "fmul{s||s|}",
2464 "fcom{s||s|}",
2465 "fcomp{s||s|}",
2466 "fsub{s||s|}",
2467 "fsubr{s||s|}",
2468 "fdiv{s||s|}",
2469 "fdivr{s||s|}",
2470 /* d9 */
2471 "fld{s||s|}",
2472 "(bad)",
2473 "fst{s||s|}",
2474 "fstp{s||s|}",
2475 "fldenvIC",
2476 "fldcw",
2477 "fNstenvIC",
2478 "fNstcw",
2479 /* da */
2480 "fiadd{l||l|}",
2481 "fimul{l||l|}",
2482 "ficom{l||l|}",
2483 "ficomp{l||l|}",
2484 "fisub{l||l|}",
2485 "fisubr{l||l|}",
2486 "fidiv{l||l|}",
2487 "fidivr{l||l|}",
2488 /* db */
2489 "fild{l||l|}",
2490 "fisttp{l||l|}",
2491 "fist{l||l|}",
2492 "fistp{l||l|}",
2493 "(bad)",
2494 "fld{t||t|}",
2495 "(bad)",
2496 "fstp{t||t|}",
2497 /* dc */
2498 "fadd{l||l|}",
2499 "fmul{l||l|}",
2500 "fcom{l||l|}",
2501 "fcomp{l||l|}",
2502 "fsub{l||l|}",
2503 "fsubr{l||l|}",
2504 "fdiv{l||l|}",
2505 "fdivr{l||l|}",
2506 /* dd */
2507 "fld{l||l|}",
2508 "fisttp{ll||ll|}",
2509 "fst{l||l|}",
2510 "fstp{l||l|}",
2511 "frstorIC",
2512 "(bad)",
2513 "fNsaveIC",
2514 "fNstsw",
2515 /* de */
2516 "fiadd",
2517 "fimul",
2518 "ficom",
2519 "ficomp",
2520 "fisub",
2521 "fisubr",
2522 "fidiv",
2523 "fidivr",
2524 /* df */
2525 "fild",
2526 "fisttp",
2527 "fist",
2528 "fistp",
2529 "fbld",
2530 "fild{ll||ll|}",
2531 "fbstp",
2532 "fistp{ll||ll|}",
2533 };
2534
2535 static const unsigned char float_mem_mode[] = {
2536 /* d8 */
2537 d_mode,
2538 d_mode,
2539 d_mode,
2540 d_mode,
2541 d_mode,
2542 d_mode,
2543 d_mode,
2544 d_mode,
2545 /* d9 */
2546 d_mode,
2547 0,
2548 d_mode,
2549 d_mode,
2550 0,
2551 w_mode,
2552 0,
2553 w_mode,
2554 /* da */
2555 d_mode,
2556 d_mode,
2557 d_mode,
2558 d_mode,
2559 d_mode,
2560 d_mode,
2561 d_mode,
2562 d_mode,
2563 /* db */
2564 d_mode,
2565 d_mode,
2566 d_mode,
2567 d_mode,
2568 0,
2569 t_mode,
2570 0,
2571 t_mode,
2572 /* dc */
2573 q_mode,
2574 q_mode,
2575 q_mode,
2576 q_mode,
2577 q_mode,
2578 q_mode,
2579 q_mode,
2580 q_mode,
2581 /* dd */
2582 q_mode,
2583 q_mode,
2584 q_mode,
2585 q_mode,
2586 0,
2587 0,
2588 0,
2589 w_mode,
2590 /* de */
2591 w_mode,
2592 w_mode,
2593 w_mode,
2594 w_mode,
2595 w_mode,
2596 w_mode,
2597 w_mode,
2598 w_mode,
2599 /* df */
2600 w_mode,
2601 w_mode,
2602 w_mode,
2603 w_mode,
2604 t_mode,
2605 q_mode,
2606 t_mode,
2607 q_mode
2608 };
2609
2610 #define ST OP_ST, 0
2611 #define STi OP_STi, 0
2612
2613 #define FGRPd9_2 NULL, NULL, 0, NULL, 0, NULL, 0
2614 #define FGRPd9_4 NULL, NULL, 1, NULL, 0, NULL, 0
2615 #define FGRPd9_5 NULL, NULL, 2, NULL, 0, NULL, 0
2616 #define FGRPd9_6 NULL, NULL, 3, NULL, 0, NULL, 0
2617 #define FGRPd9_7 NULL, NULL, 4, NULL, 0, NULL, 0
2618 #define FGRPda_5 NULL, NULL, 5, NULL, 0, NULL, 0
2619 #define FGRPdb_4 NULL, NULL, 6, NULL, 0, NULL, 0
2620 #define FGRPde_3 NULL, NULL, 7, NULL, 0, NULL, 0
2621 #define FGRPdf_4 NULL, NULL, 8, NULL, 0, NULL, 0
2622
2623 static const struct dis386 float_reg[][8] = {
2624 /* d8 */
2625 {
2626 { "fadd", ST, STi, XX },
2627 { "fmul", ST, STi, XX },
2628 { "fcom", STi, XX, XX },
2629 { "fcomp", STi, XX, XX },
2630 { "fsub", ST, STi, XX },
2631 { "fsubr", ST, STi, XX },
2632 { "fdiv", ST, STi, XX },
2633 { "fdivr", ST, STi, XX },
2634 },
2635 /* d9 */
2636 {
2637 { "fld", STi, XX, XX },
2638 { "fxch", STi, XX, XX },
2639 { FGRPd9_2 },
2640 { "(bad)", XX, XX, XX },
2641 { FGRPd9_4 },
2642 { FGRPd9_5 },
2643 { FGRPd9_6 },
2644 { FGRPd9_7 },
2645 },
2646 /* da */
2647 {
2648 { "fcmovb", ST, STi, XX },
2649 { "fcmove", ST, STi, XX },
2650 { "fcmovbe",ST, STi, XX },
2651 { "fcmovu", ST, STi, XX },
2652 { "(bad)", XX, XX, XX },
2653 { FGRPda_5 },
2654 { "(bad)", XX, XX, XX },
2655 { "(bad)", XX, XX, XX },
2656 },
2657 /* db */
2658 {
2659 { "fcmovnb",ST, STi, XX },
2660 { "fcmovne",ST, STi, XX },
2661 { "fcmovnbe",ST, STi, XX },
2662 { "fcmovnu",ST, STi, XX },
2663 { FGRPdb_4 },
2664 { "fucomi", ST, STi, XX },
2665 { "fcomi", ST, STi, XX },
2666 { "(bad)", XX, XX, XX },
2667 },
2668 /* dc */
2669 {
2670 { "fadd", STi, ST, XX },
2671 { "fmul", STi, ST, XX },
2672 { "(bad)", XX, XX, XX },
2673 { "(bad)", XX, XX, XX },
2674 #if UNIXWARE_COMPAT
2675 { "fsub", STi, ST, XX },
2676 { "fsubr", STi, ST, XX },
2677 { "fdiv", STi, ST, XX },
2678 { "fdivr", STi, ST, XX },
2679 #else
2680 { "fsubr", STi, ST, XX },
2681 { "fsub", STi, ST, XX },
2682 { "fdivr", STi, ST, XX },
2683 { "fdiv", STi, ST, XX },
2684 #endif
2685 },
2686 /* dd */
2687 {
2688 { "ffree", STi, XX, XX },
2689 { "(bad)", XX, XX, XX },
2690 { "fst", STi, XX, XX },
2691 { "fstp", STi, XX, XX },
2692 { "fucom", STi, XX, XX },
2693 { "fucomp", STi, XX, XX },
2694 { "(bad)", XX, XX, XX },
2695 { "(bad)", XX, XX, XX },
2696 },
2697 /* de */
2698 {
2699 { "faddp", STi, ST, XX },
2700 { "fmulp", STi, ST, XX },
2701 { "(bad)", XX, XX, XX },
2702 { FGRPde_3 },
2703 #if UNIXWARE_COMPAT
2704 { "fsubp", STi, ST, XX },
2705 { "fsubrp", STi, ST, XX },
2706 { "fdivp", STi, ST, XX },
2707 { "fdivrp", STi, ST, XX },
2708 #else
2709 { "fsubrp", STi, ST, XX },
2710 { "fsubp", STi, ST, XX },
2711 { "fdivrp", STi, ST, XX },
2712 { "fdivp", STi, ST, XX },
2713 #endif
2714 },
2715 /* df */
2716 {
2717 { "ffreep", STi, XX, XX },
2718 { "(bad)", XX, XX, XX },
2719 { "(bad)", XX, XX, XX },
2720 { "(bad)", XX, XX, XX },
2721 { FGRPdf_4 },
2722 { "fucomip",ST, STi, XX },
2723 { "fcomip", ST, STi, XX },
2724 { "(bad)", XX, XX, XX },
2725 },
2726 };
2727
2728 static char *fgrps[][8] = {
2729 /* d9_2 0 */
2730 {
2731 "fnop","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
2732 },
2733
2734 /* d9_4 1 */
2735 {
2736 "fchs","fabs","(bad)","(bad)","ftst","fxam","(bad)","(bad)",
2737 },
2738
2739 /* d9_5 2 */
2740 {
2741 "fld1","fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz","(bad)",
2742 },
2743
2744 /* d9_6 3 */
2745 {
2746 "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp","fincstp",
2747 },
2748
2749 /* d9_7 4 */
2750 {
2751 "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos",
2752 },
2753
2754 /* da_5 5 */
2755 {
2756 "(bad)","fucompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
2757 },
2758
2759 /* db_4 6 */
2760 {
2761 "feni(287 only)","fdisi(287 only)","fNclex","fNinit",
2762 "fNsetpm(287 only)","(bad)","(bad)","(bad)",
2763 },
2764
2765 /* de_3 7 */
2766 {
2767 "(bad)","fcompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
2768 },
2769
2770 /* df_4 8 */
2771 {
2772 "fNstsw","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
2773 },
2774 };
2775
2776 static void
2777 dofloat (int sizeflag)
2778 {
2779 const struct dis386 *dp;
2780 unsigned char floatop;
2781
2782 floatop = codep[-1];
2783
2784 if (mod != 3)
2785 {
2786 int fp_indx = (floatop - 0xd8) * 8 + reg;
2787
2788 putop (float_mem[fp_indx], sizeflag);
2789 obufp = op1out;
2790 op_ad = 2;
2791 OP_E (float_mem_mode[fp_indx], sizeflag);
2792 return;
2793 }
2794 /* Skip mod/rm byte. */
2795 MODRM_CHECK;
2796 codep++;
2797
2798 dp = &float_reg[floatop - 0xd8][reg];
2799 if (dp->name == NULL)
2800 {
2801 putop (fgrps[dp->bytemode1][rm], sizeflag);
2802
2803 /* Instruction fnstsw is only one with strange arg. */
2804 if (floatop == 0xdf && codep[-1] == 0xe0)
2805 strcpy (op1out, names16[0]);
2806 }
2807 else
2808 {
2809 putop (dp->name, sizeflag);
2810
2811 obufp = op1out;
2812 op_ad = 2;
2813 if (dp->op1)
2814 (*dp->op1) (dp->bytemode1, sizeflag);
2815
2816 obufp = op2out;
2817 op_ad = 1;
2818 if (dp->op2)
2819 (*dp->op2) (dp->bytemode2, sizeflag);
2820 }
2821 }
2822
2823 static void
2824 OP_ST (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
2825 {
2826 oappend ("%st" + intel_syntax);
2827 }
2828
2829 static void
2830 OP_STi (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
2831 {
2832 sprintf (scratchbuf, "%%st(%d)", rm);
2833 oappend (scratchbuf + intel_syntax);
2834 }
2835
2836 /* Capital letters in template are macros. */
2837 static int
2838 putop (const char *template, int sizeflag)
2839 {
2840 const char *p;
2841 int alt = 0;
2842
2843 for (p = template; *p; p++)
2844 {
2845 switch (*p)
2846 {
2847 default:
2848 *obufp++ = *p;
2849 break;
2850 case '{':
2851 alt = 0;
2852 if (intel_syntax)
2853 alt += 1;
2854 if (address_mode == mode_64bit)
2855 alt += 2;
2856 while (alt != 0)
2857 {
2858 while (*++p != '|')
2859 {
2860 if (*p == '}')
2861 {
2862 /* Alternative not valid. */
2863 strcpy (obuf, "(bad)");
2864 obufp = obuf + 5;
2865 return 1;
2866 }
2867 else if (*p == '\0')
2868 abort ();
2869 }
2870 alt--;
2871 }
2872 /* Fall through. */
2873 case 'I':
2874 alt = 1;
2875 continue;
2876 case '|':
2877 while (*++p != '}')
2878 {
2879 if (*p == '\0')
2880 abort ();
2881 }
2882 break;
2883 case '}':
2884 break;
2885 case 'A':
2886 if (intel_syntax)
2887 break;
2888 if (mod != 3 || (sizeflag & SUFFIX_ALWAYS))
2889 *obufp++ = 'b';
2890 break;
2891 case 'B':
2892 if (intel_syntax)
2893 break;
2894 if (sizeflag & SUFFIX_ALWAYS)
2895 *obufp++ = 'b';
2896 break;
2897 case 'C':
2898 if (intel_syntax && !alt)
2899 break;
2900 if ((prefixes & PREFIX_DATA) || (sizeflag & SUFFIX_ALWAYS))
2901 {
2902 if (sizeflag & DFLAG)
2903 *obufp++ = intel_syntax ? 'd' : 'l';
2904 else
2905 *obufp++ = intel_syntax ? 'w' : 's';
2906 used_prefixes |= (prefixes & PREFIX_DATA);
2907 }
2908 break;
2909 case 'E': /* For jcxz/jecxz */
2910 if (address_mode == mode_64bit)
2911 {
2912 if (sizeflag & AFLAG)
2913 *obufp++ = 'r';
2914 else
2915 *obufp++ = 'e';
2916 }
2917 else
2918 if (sizeflag & AFLAG)
2919 *obufp++ = 'e';
2920 used_prefixes |= (prefixes & PREFIX_ADDR);
2921 break;
2922 case 'F':
2923 if (intel_syntax)
2924 break;
2925 if ((prefixes & PREFIX_ADDR) || (sizeflag & SUFFIX_ALWAYS))
2926 {
2927 if (sizeflag & AFLAG)
2928 *obufp++ = address_mode == mode_64bit ? 'q' : 'l';
2929 else
2930 *obufp++ = address_mode == mode_64bit ? 'l' : 'w';
2931 used_prefixes |= (prefixes & PREFIX_ADDR);
2932 }
2933 break;
2934 case 'H':
2935 if (intel_syntax)
2936 break;
2937 if ((prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_CS
2938 || (prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_DS)
2939 {
2940 used_prefixes |= prefixes & (PREFIX_CS | PREFIX_DS);
2941 *obufp++ = ',';
2942 *obufp++ = 'p';
2943 if (prefixes & PREFIX_DS)
2944 *obufp++ = 't';
2945 else
2946 *obufp++ = 'n';
2947 }
2948 break;
2949 case 'J':
2950 if (intel_syntax)
2951 break;
2952 *obufp++ = 'l';
2953 break;
2954 case 'Z':
2955 if (intel_syntax)
2956 break;
2957 if (address_mode == mode_64bit && (sizeflag & SUFFIX_ALWAYS))
2958 {
2959 *obufp++ = 'q';
2960 break;
2961 }
2962 /* Fall through. */
2963 case 'L':
2964 if (intel_syntax)
2965 break;
2966 if (sizeflag & SUFFIX_ALWAYS)
2967 *obufp++ = 'l';
2968 break;
2969 case 'N':
2970 if ((prefixes & PREFIX_FWAIT) == 0)
2971 *obufp++ = 'n';
2972 else
2973 used_prefixes |= PREFIX_FWAIT;
2974 break;
2975 case 'O':
2976 USED_REX (REX_MODE64);
2977 if (rex & REX_MODE64)
2978 *obufp++ = 'o';
2979 else
2980 *obufp++ = 'd';
2981 break;
2982 case 'T':
2983 if (intel_syntax)
2984 break;
2985 if (address_mode == mode_64bit && (sizeflag & DFLAG))
2986 {
2987 *obufp++ = 'q';
2988 break;
2989 }
2990 /* Fall through. */
2991 case 'P':
2992 if (intel_syntax)
2993 break;
2994 if ((prefixes & PREFIX_DATA)
2995 || (rex & REX_MODE64)
2996 || (sizeflag & SUFFIX_ALWAYS))
2997 {
2998 USED_REX (REX_MODE64);
2999 if (rex & REX_MODE64)
3000 *obufp++ = 'q';
3001 else
3002 {
3003 if (sizeflag & DFLAG)
3004 *obufp++ = 'l';
3005 else
3006 *obufp++ = 'w';
3007 }
3008 used_prefixes |= (prefixes & PREFIX_DATA);
3009 }
3010 break;
3011 case 'U':
3012 if (intel_syntax)
3013 break;
3014 if (address_mode == mode_64bit && (sizeflag & DFLAG))
3015 {
3016 if (mod != 3 || (sizeflag & SUFFIX_ALWAYS))
3017 *obufp++ = 'q';
3018 break;
3019 }
3020 /* Fall through. */
3021 case 'Q':
3022 if (intel_syntax && !alt)
3023 break;
3024 USED_REX (REX_MODE64);
3025 if (mod != 3 || (sizeflag & SUFFIX_ALWAYS))
3026 {
3027 if (rex & REX_MODE64)
3028 *obufp++ = 'q';
3029 else
3030 {
3031 if (sizeflag & DFLAG)
3032 *obufp++ = intel_syntax ? 'd' : 'l';
3033 else
3034 *obufp++ = 'w';
3035 }
3036 used_prefixes |= (prefixes & PREFIX_DATA);
3037 }
3038 break;
3039 case 'R':
3040 USED_REX (REX_MODE64);
3041 if (intel_syntax)
3042 {
3043 if (rex & REX_MODE64)
3044 {
3045 *obufp++ = 'q';
3046 *obufp++ = 't';
3047 }
3048 else if (sizeflag & DFLAG)
3049 {
3050 *obufp++ = 'd';
3051 *obufp++ = 'q';
3052 }
3053 else
3054 {
3055 *obufp++ = 'w';
3056 *obufp++ = 'd';
3057 }
3058 }
3059 else
3060 {
3061 if (rex & REX_MODE64)
3062 *obufp++ = 'q';
3063 else if (sizeflag & DFLAG)
3064 *obufp++ = 'l';
3065 else
3066 *obufp++ = 'w';
3067 }
3068 if (!(rex & REX_MODE64))
3069 used_prefixes |= (prefixes & PREFIX_DATA);
3070 break;
3071 case 'V':
3072 if (intel_syntax)
3073 break;
3074 if (address_mode == mode_64bit && (sizeflag & DFLAG))
3075 {
3076 if (sizeflag & SUFFIX_ALWAYS)
3077 *obufp++ = 'q';
3078 break;
3079 }
3080 /* Fall through. */
3081 case 'S':
3082 if (intel_syntax)
3083 break;
3084 if (sizeflag & SUFFIX_ALWAYS)
3085 {
3086 if (rex & REX_MODE64)
3087 *obufp++ = 'q';
3088 else
3089 {
3090 if (sizeflag & DFLAG)
3091 *obufp++ = 'l';
3092 else
3093 *obufp++ = 'w';
3094 used_prefixes |= (prefixes & PREFIX_DATA);
3095 }
3096 }
3097 break;
3098 case 'X':
3099 if (prefixes & PREFIX_DATA)
3100 *obufp++ = 'd';
3101 else
3102 *obufp++ = 's';
3103 used_prefixes |= (prefixes & PREFIX_DATA);
3104 break;
3105 case 'Y':
3106 if (intel_syntax)
3107 break;
3108 if (rex & REX_MODE64)
3109 {
3110 USED_REX (REX_MODE64);
3111 *obufp++ = 'q';
3112 }
3113 break;
3114 /* implicit operand size 'l' for i386 or 'q' for x86-64 */
3115 case 'W':
3116 /* operand size flag for cwtl, cbtw */
3117 USED_REX (0);
3118 if (rex)
3119 *obufp++ = 'l';
3120 else if (sizeflag & DFLAG)
3121 *obufp++ = 'w';
3122 else
3123 *obufp++ = 'b';
3124 if (intel_syntax)
3125 {
3126 if (rex)
3127 {
3128 *obufp++ = 'q';
3129 *obufp++ = 'e';
3130 }
3131 if (sizeflag & DFLAG)
3132 {
3133 *obufp++ = 'd';
3134 *obufp++ = 'e';
3135 }
3136 else
3137 {
3138 *obufp++ = 'w';
3139 }
3140 }
3141 if (!rex)
3142 used_prefixes |= (prefixes & PREFIX_DATA);
3143 break;
3144 }
3145 alt = 0;
3146 }
3147 *obufp = 0;
3148 return 0;
3149 }
3150
3151 static void
3152 oappend (const char *s)
3153 {
3154 strcpy (obufp, s);
3155 obufp += strlen (s);
3156 }
3157
3158 static void
3159 append_seg (void)
3160 {
3161 if (prefixes & PREFIX_CS)
3162 {
3163 used_prefixes |= PREFIX_CS;
3164 oappend ("%cs:" + intel_syntax);
3165 }
3166 if (prefixes & PREFIX_DS)
3167 {
3168 used_prefixes |= PREFIX_DS;
3169 oappend ("%ds:" + intel_syntax);
3170 }
3171 if (prefixes & PREFIX_SS)
3172 {
3173 used_prefixes |= PREFIX_SS;
3174 oappend ("%ss:" + intel_syntax);
3175 }
3176 if (prefixes & PREFIX_ES)
3177 {
3178 used_prefixes |= PREFIX_ES;
3179 oappend ("%es:" + intel_syntax);
3180 }
3181 if (prefixes & PREFIX_FS)
3182 {
3183 used_prefixes |= PREFIX_FS;
3184 oappend ("%fs:" + intel_syntax);
3185 }
3186 if (prefixes & PREFIX_GS)
3187 {
3188 used_prefixes |= PREFIX_GS;
3189 oappend ("%gs:" + intel_syntax);
3190 }
3191 }
3192
3193 static void
3194 OP_indirE (int bytemode, int sizeflag)
3195 {
3196 if (!intel_syntax)
3197 oappend ("*");
3198 OP_E (bytemode, sizeflag);
3199 }
3200
3201 static void
3202 print_operand_value (char *buf, int hex, bfd_vma disp)
3203 {
3204 if (address_mode == mode_64bit)
3205 {
3206 if (hex)
3207 {
3208 char tmp[30];
3209 int i;
3210 buf[0] = '0';
3211 buf[1] = 'x';
3212 sprintf_vma (tmp, disp);
3213 for (i = 0; tmp[i] == '0' && tmp[i + 1]; i++);
3214 strcpy (buf + 2, tmp + i);
3215 }
3216 else
3217 {
3218 bfd_signed_vma v = disp;
3219 char tmp[30];
3220 int i;
3221 if (v < 0)
3222 {
3223 *(buf++) = '-';
3224 v = -disp;
3225 /* Check for possible overflow on 0x8000000000000000. */
3226 if (v < 0)
3227 {
3228 strcpy (buf, "9223372036854775808");
3229 return;
3230 }
3231 }
3232 if (!v)
3233 {
3234 strcpy (buf, "0");
3235 return;
3236 }
3237
3238 i = 0;
3239 tmp[29] = 0;
3240 while (v)
3241 {
3242 tmp[28 - i] = (v % 10) + '0';
3243 v /= 10;
3244 i++;
3245 }
3246 strcpy (buf, tmp + 29 - i);
3247 }
3248 }
3249 else
3250 {
3251 if (hex)
3252 sprintf (buf, "0x%x", (unsigned int) disp);
3253 else
3254 sprintf (buf, "%d", (int) disp);
3255 }
3256 }
3257
3258 static void
3259 intel_operand_size (int bytemode, int sizeflag)
3260 {
3261 switch (bytemode)
3262 {
3263 case b_mode:
3264 oappend ("BYTE PTR ");
3265 break;
3266 case w_mode:
3267 case dqw_mode:
3268 oappend ("WORD PTR ");
3269 break;
3270 case stack_v_mode:
3271 if (address_mode == mode_64bit && (sizeflag & DFLAG))
3272 {
3273 oappend ("QWORD PTR ");
3274 used_prefixes |= (prefixes & PREFIX_DATA);
3275 break;
3276 }
3277 /* FALLTHRU */
3278 case v_mode:
3279 case dq_mode:
3280 USED_REX (REX_MODE64);
3281 if (rex & REX_MODE64)
3282 oappend ("QWORD PTR ");
3283 else if ((sizeflag & DFLAG) || bytemode == dq_mode)
3284 oappend ("DWORD PTR ");
3285 else
3286 oappend ("WORD PTR ");
3287 used_prefixes |= (prefixes & PREFIX_DATA);
3288 break;
3289 case d_mode:
3290 oappend ("DWORD PTR ");
3291 break;
3292 case q_mode:
3293 oappend ("QWORD PTR ");
3294 break;
3295 case m_mode:
3296 if (address_mode == mode_64bit)
3297 oappend ("QWORD PTR ");
3298 else
3299 oappend ("DWORD PTR ");
3300 break;
3301 case f_mode:
3302 if (sizeflag & DFLAG)
3303 oappend ("FWORD PTR ");
3304 else
3305 oappend ("DWORD PTR ");
3306 used_prefixes |= (prefixes & PREFIX_DATA);
3307 break;
3308 case t_mode:
3309 oappend ("TBYTE PTR ");
3310 break;
3311 case x_mode:
3312 oappend ("XMMWORD PTR ");
3313 break;
3314 default:
3315 break;
3316 }
3317 }
3318
3319 static void
3320 OP_E (int bytemode, int sizeflag)
3321 {
3322 bfd_vma disp;
3323 int add = 0;
3324 int riprel = 0;
3325 USED_REX (REX_EXTZ);
3326 if (rex & REX_EXTZ)
3327 add += 8;
3328
3329 /* Skip mod/rm byte. */
3330 MODRM_CHECK;
3331 codep++;
3332
3333 if (mod == 3)
3334 {
3335 switch (bytemode)
3336 {
3337 case b_mode:
3338 USED_REX (0);
3339 if (rex)
3340 oappend (names8rex[rm + add]);
3341 else
3342 oappend (names8[rm + add]);
3343 break;
3344 case w_mode:
3345 oappend (names16[rm + add]);
3346 break;
3347 case d_mode:
3348 oappend (names32[rm + add]);
3349 break;
3350 case q_mode:
3351 oappend (names64[rm + add]);
3352 break;
3353 case m_mode:
3354 if (address_mode == mode_64bit)
3355 oappend (names64[rm + add]);
3356 else
3357 oappend (names32[rm + add]);
3358 break;
3359 case stack_v_mode:
3360 if (address_mode == mode_64bit && (sizeflag & DFLAG))
3361 {
3362 oappend (names64[rm + add]);
3363 used_prefixes |= (prefixes & PREFIX_DATA);
3364 break;
3365 }
3366 bytemode = v_mode;
3367 /* FALLTHRU */
3368 case v_mode:
3369 case dq_mode:
3370 case dqw_mode:
3371 USED_REX (REX_MODE64);
3372 if (rex & REX_MODE64)
3373 oappend (names64[rm + add]);
3374 else if ((sizeflag & DFLAG) || bytemode != v_mode)
3375 oappend (names32[rm + add]);
3376 else
3377 oappend (names16[rm + add]);
3378 used_prefixes |= (prefixes & PREFIX_DATA);
3379 break;
3380 case 0:
3381 break;
3382 default:
3383 oappend (INTERNAL_DISASSEMBLER_ERROR);
3384 break;
3385 }
3386 return;
3387 }
3388
3389 disp = 0;
3390 if (intel_syntax)
3391 intel_operand_size (bytemode, sizeflag);
3392 append_seg ();
3393
3394 if ((sizeflag & AFLAG) || address_mode == mode_64bit) /* 32 bit address mode */
3395 {
3396 int havesib;
3397 int havebase;
3398 int base;
3399 int index = 0;
3400 int scale = 0;
3401
3402 havesib = 0;
3403 havebase = 1;
3404 base = rm;
3405
3406 if (base == 4)
3407 {
3408 havesib = 1;
3409 FETCH_DATA (the_info, codep + 1);
3410 index = (*codep >> 3) & 7;
3411 if (address_mode == mode_64bit || index != 0x4)
3412 /* When INDEX == 0x4 in 32 bit mode, SCALE is ignored. */
3413 scale = (*codep >> 6) & 3;
3414 base = *codep & 7;
3415 USED_REX (REX_EXTY);
3416 if (rex & REX_EXTY)
3417 index += 8;
3418 codep++;
3419 }
3420 base += add;
3421
3422 switch (mod)
3423 {
3424 case 0:
3425 if ((base & 7) == 5)
3426 {
3427 havebase = 0;
3428 if (address_mode == mode_64bit && !havesib)
3429 riprel = 1;
3430 disp = get32s ();
3431 }
3432 break;
3433 case 1:
3434 FETCH_DATA (the_info, codep + 1);
3435 disp = *codep++;
3436 if ((disp & 0x80) != 0)
3437 disp -= 0x100;
3438 break;
3439 case 2:
3440 disp = get32s ();
3441 break;
3442 }
3443
3444 if (!intel_syntax)
3445 if (mod != 0 || (base & 7) == 5)
3446 {
3447 print_operand_value (scratchbuf, !riprel, disp);
3448 oappend (scratchbuf);
3449 if (riprel)
3450 {
3451 set_op (disp, 1);
3452 oappend ("(%rip)");
3453 }
3454 }
3455
3456 if (havebase || (havesib && (index != 4 || scale != 0)))
3457 {
3458 *obufp++ = open_char;
3459 if (intel_syntax && riprel)
3460 oappend ("rip + ");
3461 *obufp = '\0';
3462 if (havebase)
3463 oappend (address_mode == mode_64bit && (sizeflag & AFLAG)
3464 ? names64[base] : names32[base]);
3465 if (havesib)
3466 {
3467 if (index != 4)
3468 {
3469 if (!intel_syntax || havebase)
3470 {
3471 *obufp++ = separator_char;
3472 *obufp = '\0';
3473 }
3474 oappend (address_mode == mode_64bit && (sizeflag & AFLAG)
3475 ? names64[index] : names32[index]);
3476 }
3477 if (scale != 0 || (!intel_syntax && index != 4))
3478 {
3479 *obufp++ = scale_char;
3480 *obufp = '\0';
3481 sprintf (scratchbuf, "%d", 1 << scale);
3482 oappend (scratchbuf);
3483 }
3484 }
3485 if (intel_syntax && disp)
3486 {
3487 if ((bfd_signed_vma) disp > 0)
3488 {
3489 *obufp++ = '+';
3490 *obufp = '\0';
3491 }
3492 else if (mod != 1)
3493 {
3494 *obufp++ = '-';
3495 *obufp = '\0';
3496 disp = - (bfd_signed_vma) disp;
3497 }
3498
3499 print_operand_value (scratchbuf, mod != 1, disp);
3500 oappend (scratchbuf);
3501 }
3502
3503 *obufp++ = close_char;
3504 *obufp = '\0';
3505 }
3506 else if (intel_syntax)
3507 {
3508 if (mod != 0 || (base & 7) == 5)
3509 {
3510 if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
3511 | PREFIX_ES | PREFIX_FS | PREFIX_GS))
3512 ;
3513 else
3514 {
3515 oappend (names_seg[ds_reg - es_reg]);
3516 oappend (":");
3517 }
3518 print_operand_value (scratchbuf, 1, disp);
3519 oappend (scratchbuf);
3520 }
3521 }
3522 }
3523 else
3524 { /* 16 bit address mode */
3525 switch (mod)
3526 {
3527 case 0:
3528 if (rm == 6)
3529 {
3530 disp = get16 ();
3531 if ((disp & 0x8000) != 0)
3532 disp -= 0x10000;
3533 }
3534 break;
3535 case 1:
3536 FETCH_DATA (the_info, codep + 1);
3537 disp = *codep++;
3538 if ((disp & 0x80) != 0)
3539 disp -= 0x100;
3540 break;
3541 case 2:
3542 disp = get16 ();
3543 if ((disp & 0x8000) != 0)
3544 disp -= 0x10000;
3545 break;
3546 }
3547
3548 if (!intel_syntax)
3549 if (mod != 0 || rm == 6)
3550 {
3551 print_operand_value (scratchbuf, 0, disp);
3552 oappend (scratchbuf);
3553 }
3554
3555 if (mod != 0 || rm != 6)
3556 {
3557 *obufp++ = open_char;
3558 *obufp = '\0';
3559 oappend (index16[rm]);
3560 if (intel_syntax && disp)
3561 {
3562 if ((bfd_signed_vma) disp > 0)
3563 {
3564 *obufp++ = '+';
3565 *obufp = '\0';
3566 }
3567 else if (mod != 1)
3568 {
3569 *obufp++ = '-';
3570 *obufp = '\0';
3571 disp = - (bfd_signed_vma) disp;
3572 }
3573
3574 print_operand_value (scratchbuf, mod != 1, disp);
3575 oappend (scratchbuf);
3576 }
3577
3578 *obufp++ = close_char;
3579 *obufp = '\0';
3580 }
3581 else if (intel_syntax)
3582 {
3583 if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
3584 | PREFIX_ES | PREFIX_FS | PREFIX_GS))
3585 ;
3586 else
3587 {
3588 oappend (names_seg[ds_reg - es_reg]);
3589 oappend (":");
3590 }
3591 print_operand_value (scratchbuf, 1, disp & 0xffff);
3592 oappend (scratchbuf);
3593 }
3594 }
3595 }
3596
3597 static void
3598 OP_G (int bytemode, int sizeflag)
3599 {
3600 int add = 0;
3601 USED_REX (REX_EXTX);
3602 if (rex & REX_EXTX)
3603 add += 8;
3604 switch (bytemode)
3605 {
3606 case b_mode:
3607 USED_REX (0);
3608 if (rex)
3609 oappend (names8rex[reg + add]);
3610 else
3611 oappend (names8[reg + add]);
3612 break;
3613 case w_mode:
3614 oappend (names16[reg + add]);
3615 break;
3616 case d_mode:
3617 oappend (names32[reg + add]);
3618 break;
3619 case q_mode:
3620 oappend (names64[reg + add]);
3621 break;
3622 case v_mode:
3623 case dq_mode:
3624 case dqw_mode:
3625 USED_REX (REX_MODE64);
3626 if (rex & REX_MODE64)
3627 oappend (names64[reg + add]);
3628 else if ((sizeflag & DFLAG) || bytemode != v_mode)
3629 oappend (names32[reg + add]);
3630 else
3631 oappend (names16[reg + add]);
3632 used_prefixes |= (prefixes & PREFIX_DATA);
3633 break;
3634 case m_mode:
3635 if (address_mode == mode_64bit)
3636 oappend (names64[reg + add]);
3637 else
3638 oappend (names32[reg + add]);
3639 break;
3640 default:
3641 oappend (INTERNAL_DISASSEMBLER_ERROR);
3642 break;
3643 }
3644 }
3645
3646 static bfd_vma
3647 get64 (void)
3648 {
3649 bfd_vma x;
3650 #ifdef BFD64
3651 unsigned int a;
3652 unsigned int b;
3653
3654 FETCH_DATA (the_info, codep + 8);
3655 a = *codep++ & 0xff;
3656 a |= (*codep++ & 0xff) << 8;
3657 a |= (*codep++ & 0xff) << 16;
3658 a |= (*codep++ & 0xff) << 24;
3659 b = *codep++ & 0xff;
3660 b |= (*codep++ & 0xff) << 8;
3661 b |= (*codep++ & 0xff) << 16;
3662 b |= (*codep++ & 0xff) << 24;
3663 x = a + ((bfd_vma) b << 32);
3664 #else
3665 abort ();
3666 x = 0;
3667 #endif
3668 return x;
3669 }
3670
3671 static bfd_signed_vma
3672 get32 (void)
3673 {
3674 bfd_signed_vma x = 0;
3675
3676 FETCH_DATA (the_info, codep + 4);
3677 x = *codep++ & (bfd_signed_vma) 0xff;
3678 x |= (*codep++ & (bfd_signed_vma) 0xff) << 8;
3679 x |= (*codep++ & (bfd_signed_vma) 0xff) << 16;
3680 x |= (*codep++ & (bfd_signed_vma) 0xff) << 24;
3681 return x;
3682 }
3683
3684 static bfd_signed_vma
3685 get32s (void)
3686 {
3687 bfd_signed_vma x = 0;
3688
3689 FETCH_DATA (the_info, codep + 4);
3690 x = *codep++ & (bfd_signed_vma) 0xff;
3691 x |= (*codep++ & (bfd_signed_vma) 0xff) << 8;
3692 x |= (*codep++ & (bfd_signed_vma) 0xff) << 16;
3693 x |= (*codep++ & (bfd_signed_vma) 0xff) << 24;
3694
3695 x = (x ^ ((bfd_signed_vma) 1 << 31)) - ((bfd_signed_vma) 1 << 31);
3696
3697 return x;
3698 }
3699
3700 static int
3701 get16 (void)
3702 {
3703 int x = 0;
3704
3705 FETCH_DATA (the_info, codep + 2);
3706 x = *codep++ & 0xff;
3707 x |= (*codep++ & 0xff) << 8;
3708 return x;
3709 }
3710
3711 static void
3712 set_op (bfd_vma op, int riprel)
3713 {
3714 op_index[op_ad] = op_ad;
3715 if (address_mode == mode_64bit)
3716 {
3717 op_address[op_ad] = op;
3718 op_riprel[op_ad] = riprel;
3719 }
3720 else
3721 {
3722 /* Mask to get a 32-bit address. */
3723 op_address[op_ad] = op & 0xffffffff;
3724 op_riprel[op_ad] = riprel & 0xffffffff;
3725 }
3726 }
3727
3728 static void
3729 OP_REG (int code, int sizeflag)
3730 {
3731 const char *s;
3732 int add = 0;
3733 USED_REX (REX_EXTZ);
3734 if (rex & REX_EXTZ)
3735 add = 8;
3736
3737 switch (code)
3738 {
3739 case indir_dx_reg:
3740 if (intel_syntax)
3741 s = "[dx]";
3742 else
3743 s = "(%dx)";
3744 break;
3745 case ax_reg: case cx_reg: case dx_reg: case bx_reg:
3746 case sp_reg: case bp_reg: case si_reg: case di_reg:
3747 s = names16[code - ax_reg + add];
3748 break;
3749 case es_reg: case ss_reg: case cs_reg:
3750 case ds_reg: case fs_reg: case gs_reg:
3751 s = names_seg[code - es_reg + add];
3752 break;
3753 case al_reg: case ah_reg: case cl_reg: case ch_reg:
3754 case dl_reg: case dh_reg: case bl_reg: case bh_reg:
3755 USED_REX (0);
3756 if (rex)
3757 s = names8rex[code - al_reg + add];
3758 else
3759 s = names8[code - al_reg];
3760 break;
3761 case rAX_reg: case rCX_reg: case rDX_reg: case rBX_reg:
3762 case rSP_reg: case rBP_reg: case rSI_reg: case rDI_reg:
3763 if (address_mode == mode_64bit && (sizeflag & DFLAG))
3764 {
3765 s = names64[code - rAX_reg + add];
3766 break;
3767 }
3768 code += eAX_reg - rAX_reg;
3769 /* Fall through. */
3770 case eAX_reg: case eCX_reg: case eDX_reg: case eBX_reg:
3771 case eSP_reg: case eBP_reg: case eSI_reg: case eDI_reg:
3772 USED_REX (REX_MODE64);
3773 if (rex & REX_MODE64)
3774 s = names64[code - eAX_reg + add];
3775 else if (sizeflag & DFLAG)
3776 s = names32[code - eAX_reg + add];
3777 else
3778 s = names16[code - eAX_reg + add];
3779 used_prefixes |= (prefixes & PREFIX_DATA);
3780 break;
3781 default:
3782 s = INTERNAL_DISASSEMBLER_ERROR;
3783 break;
3784 }
3785 oappend (s);
3786 }
3787
3788 static void
3789 OP_IMREG (int code, int sizeflag)
3790 {
3791 const char *s;
3792
3793 switch (code)
3794 {
3795 case indir_dx_reg:
3796 if (intel_syntax)
3797 s = "[dx]";
3798 else
3799 s = "(%dx)";
3800 break;
3801 case ax_reg: case cx_reg: case dx_reg: case bx_reg:
3802 case sp_reg: case bp_reg: case si_reg: case di_reg:
3803 s = names16[code - ax_reg];
3804 break;
3805 case es_reg: case ss_reg: case cs_reg:
3806 case ds_reg: case fs_reg: case gs_reg:
3807 s = names_seg[code - es_reg];
3808 break;
3809 case al_reg: case ah_reg: case cl_reg: case ch_reg:
3810 case dl_reg: case dh_reg: case bl_reg: case bh_reg:
3811 USED_REX (0);
3812 if (rex)
3813 s = names8rex[code - al_reg];
3814 else
3815 s = names8[code - al_reg];
3816 break;
3817 case eAX_reg: case eCX_reg: case eDX_reg: case eBX_reg:
3818 case eSP_reg: case eBP_reg: case eSI_reg: case eDI_reg:
3819 USED_REX (REX_MODE64);
3820 if (rex & REX_MODE64)
3821 s = names64[code - eAX_reg];
3822 else if (sizeflag & DFLAG)
3823 s = names32[code - eAX_reg];
3824 else
3825 s = names16[code - eAX_reg];
3826 used_prefixes |= (prefixes & PREFIX_DATA);
3827 break;
3828 default:
3829 s = INTERNAL_DISASSEMBLER_ERROR;
3830 break;
3831 }
3832 oappend (s);
3833 }
3834
3835 static void
3836 OP_I (int bytemode, int sizeflag)
3837 {
3838 bfd_signed_vma op;
3839 bfd_signed_vma mask = -1;
3840
3841 switch (bytemode)
3842 {
3843 case b_mode:
3844 FETCH_DATA (the_info, codep + 1);
3845 op = *codep++;
3846 mask = 0xff;
3847 break;
3848 case q_mode:
3849 if (address_mode == mode_64bit)
3850 {
3851 op = get32s ();
3852 break;
3853 }
3854 /* Fall through. */
3855 case v_mode:
3856 USED_REX (REX_MODE64);
3857 if (rex & REX_MODE64)
3858 op = get32s ();
3859 else if (sizeflag & DFLAG)
3860 {
3861 op = get32 ();
3862 mask = 0xffffffff;
3863 }
3864 else
3865 {
3866 op = get16 ();
3867 mask = 0xfffff;
3868 }
3869 used_prefixes |= (prefixes & PREFIX_DATA);
3870 break;
3871 case w_mode:
3872 mask = 0xfffff;
3873 op = get16 ();
3874 break;
3875 case const_1_mode:
3876 if (intel_syntax)
3877 oappend ("1");
3878 return;
3879 default:
3880 oappend (INTERNAL_DISASSEMBLER_ERROR);
3881 return;
3882 }
3883
3884 op &= mask;
3885 scratchbuf[0] = '$';
3886 print_operand_value (scratchbuf + 1, 1, op);
3887 oappend (scratchbuf + intel_syntax);
3888 scratchbuf[0] = '\0';
3889 }
3890
3891 static void
3892 OP_I64 (int bytemode, int sizeflag)
3893 {
3894 bfd_signed_vma op;
3895 bfd_signed_vma mask = -1;
3896
3897 if (address_mode != mode_64bit)
3898 {
3899 OP_I (bytemode, sizeflag);
3900 return;
3901 }
3902
3903 switch (bytemode)
3904 {
3905 case b_mode:
3906 FETCH_DATA (the_info, codep + 1);
3907 op = *codep++;
3908 mask = 0xff;
3909 break;
3910 case v_mode:
3911 USED_REX (REX_MODE64);
3912 if (rex & REX_MODE64)
3913 op = get64 ();
3914 else if (sizeflag & DFLAG)
3915 {
3916 op = get32 ();
3917 mask = 0xffffffff;
3918 }
3919 else
3920 {
3921 op = get16 ();
3922 mask = 0xfffff;
3923 }
3924 used_prefixes |= (prefixes & PREFIX_DATA);
3925 break;
3926 case w_mode:
3927 mask = 0xfffff;
3928 op = get16 ();
3929 break;
3930 default:
3931 oappend (INTERNAL_DISASSEMBLER_ERROR);
3932 return;
3933 }
3934
3935 op &= mask;
3936 scratchbuf[0] = '$';
3937 print_operand_value (scratchbuf + 1, 1, op);
3938 oappend (scratchbuf + intel_syntax);
3939 scratchbuf[0] = '\0';
3940 }
3941
3942 static void
3943 OP_sI (int bytemode, int sizeflag)
3944 {
3945 bfd_signed_vma op;
3946 bfd_signed_vma mask = -1;
3947
3948 switch (bytemode)
3949 {
3950 case b_mode:
3951 FETCH_DATA (the_info, codep + 1);
3952 op = *codep++;
3953 if ((op & 0x80) != 0)
3954 op -= 0x100;
3955 mask = 0xffffffff;
3956 break;
3957 case v_mode:
3958 USED_REX (REX_MODE64);
3959 if (rex & REX_MODE64)
3960 op = get32s ();
3961 else if (sizeflag & DFLAG)
3962 {
3963 op = get32s ();
3964 mask = 0xffffffff;
3965 }
3966 else
3967 {
3968 mask = 0xffffffff;
3969 op = get16 ();
3970 if ((op & 0x8000) != 0)
3971 op -= 0x10000;
3972 }
3973 used_prefixes |= (prefixes & PREFIX_DATA);
3974 break;
3975 case w_mode:
3976 op = get16 ();
3977 mask = 0xffffffff;
3978 if ((op & 0x8000) != 0)
3979 op -= 0x10000;
3980 break;
3981 default:
3982 oappend (INTERNAL_DISASSEMBLER_ERROR);
3983 return;
3984 }
3985
3986 scratchbuf[0] = '$';
3987 print_operand_value (scratchbuf + 1, 1, op);
3988 oappend (scratchbuf + intel_syntax);
3989 }
3990
3991 static void
3992 OP_J (int bytemode, int sizeflag)
3993 {
3994 bfd_vma disp;
3995 bfd_vma mask = -1;
3996
3997 switch (bytemode)
3998 {
3999 case b_mode:
4000 FETCH_DATA (the_info, codep + 1);
4001 disp = *codep++;
4002 if ((disp & 0x80) != 0)
4003 disp -= 0x100;
4004 break;
4005 case v_mode:
4006 if ((sizeflag & DFLAG) || (rex & REX_MODE64))
4007 disp = get32s ();
4008 else
4009 {
4010 disp = get16 ();
4011 /* For some reason, a data16 prefix on a jump instruction
4012 means that the pc is masked to 16 bits after the
4013 displacement is added! */
4014 mask = 0xffff;
4015 }
4016 break;
4017 default:
4018 oappend (INTERNAL_DISASSEMBLER_ERROR);
4019 return;
4020 }
4021 disp = (start_pc + codep - start_codep + disp) & mask;
4022 set_op (disp, 0);
4023 print_operand_value (scratchbuf, 1, disp);
4024 oappend (scratchbuf);
4025 }
4026
4027 static void
4028 OP_SEG (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
4029 {
4030 oappend (names_seg[reg]);
4031 }
4032
4033 static void
4034 OP_DIR (int dummy ATTRIBUTE_UNUSED, int sizeflag)
4035 {
4036 int seg, offset;
4037
4038 if (sizeflag & DFLAG)
4039 {
4040 offset = get32 ();
4041 seg = get16 ();
4042 }
4043 else
4044 {
4045 offset = get16 ();
4046 seg = get16 ();
4047 }
4048 used_prefixes |= (prefixes & PREFIX_DATA);
4049 if (intel_syntax)
4050 sprintf (scratchbuf, "0x%x:0x%x", seg, offset);
4051 else
4052 sprintf (scratchbuf, "$0x%x,$0x%x", seg, offset);
4053 oappend (scratchbuf);
4054 }
4055
4056 static void
4057 OP_OFF (int bytemode, int sizeflag)
4058 {
4059 bfd_vma off;
4060
4061 if (intel_syntax && (sizeflag & SUFFIX_ALWAYS))
4062 intel_operand_size (bytemode, sizeflag);
4063 append_seg ();
4064
4065 if ((sizeflag & AFLAG) || address_mode == mode_64bit)
4066 off = get32 ();
4067 else
4068 off = get16 ();
4069
4070 if (intel_syntax)
4071 {
4072 if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
4073 | PREFIX_ES | PREFIX_FS | PREFIX_GS)))
4074 {
4075 oappend (names_seg[ds_reg - es_reg]);
4076 oappend (":");
4077 }
4078 }
4079 print_operand_value (scratchbuf, 1, off);
4080 oappend (scratchbuf);
4081 }
4082
4083 static void
4084 OP_OFF64 (int bytemode, int sizeflag)
4085 {
4086 bfd_vma off;
4087
4088 if (address_mode != mode_64bit)
4089 {
4090 OP_OFF (bytemode, sizeflag);
4091 return;
4092 }
4093
4094 if (intel_syntax && (sizeflag & SUFFIX_ALWAYS))
4095 intel_operand_size (bytemode, sizeflag);
4096 append_seg ();
4097
4098 off = get64 ();
4099
4100 if (intel_syntax)
4101 {
4102 if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
4103 | PREFIX_ES | PREFIX_FS | PREFIX_GS)))
4104 {
4105 oappend (names_seg[ds_reg - es_reg]);
4106 oappend (":");
4107 }
4108 }
4109 print_operand_value (scratchbuf, 1, off);
4110 oappend (scratchbuf);
4111 }
4112
4113 static void
4114 ptr_reg (int code, int sizeflag)
4115 {
4116 const char *s;
4117
4118 *obufp++ = open_char;
4119 used_prefixes |= (prefixes & PREFIX_ADDR);
4120 if (address_mode == mode_64bit)
4121 {
4122 if (!(sizeflag & AFLAG))
4123 s = names32[code - eAX_reg];
4124 else
4125 s = names64[code - eAX_reg];
4126 }
4127 else if (sizeflag & AFLAG)
4128 s = names32[code - eAX_reg];
4129 else
4130 s = names16[code - eAX_reg];
4131 oappend (s);
4132 *obufp++ = close_char;
4133 *obufp = 0;
4134 }
4135
4136 static void
4137 OP_ESreg (int code, int sizeflag)
4138 {
4139 if (intel_syntax)
4140 intel_operand_size (codep[-1] & 1 ? v_mode : b_mode, sizeflag);
4141 oappend ("%es:" + intel_syntax);
4142 ptr_reg (code, sizeflag);
4143 }
4144
4145 static void
4146 OP_DSreg (int code, int sizeflag)
4147 {
4148 if (intel_syntax)
4149 intel_operand_size (codep[-1] != 0xd7 && (codep[-1] & 1)
4150 ? v_mode
4151 : b_mode,
4152 sizeflag);
4153 if ((prefixes
4154 & (PREFIX_CS
4155 | PREFIX_DS
4156 | PREFIX_SS
4157 | PREFIX_ES
4158 | PREFIX_FS
4159 | PREFIX_GS)) == 0)
4160 prefixes |= PREFIX_DS;
4161 append_seg ();
4162 ptr_reg (code, sizeflag);
4163 }
4164
4165 static void
4166 OP_C (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
4167 {
4168 int add = 0;
4169 if (rex & REX_EXTX)
4170 {
4171 USED_REX (REX_EXTX);
4172 add = 8;
4173 }
4174 else if (address_mode != mode_64bit && (prefixes & PREFIX_LOCK))
4175 {
4176 used_prefixes |= PREFIX_LOCK;
4177 add = 8;
4178 }
4179 sprintf (scratchbuf, "%%cr%d", reg + add);
4180 oappend (scratchbuf + intel_syntax);
4181 }
4182
4183 static void
4184 OP_D (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
4185 {
4186 int add = 0;
4187 USED_REX (REX_EXTX);
4188 if (rex & REX_EXTX)
4189 add = 8;
4190 if (intel_syntax)
4191 sprintf (scratchbuf, "db%d", reg + add);
4192 else
4193 sprintf (scratchbuf, "%%db%d", reg + add);
4194 oappend (scratchbuf);
4195 }
4196
4197 static void
4198 OP_T (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
4199 {
4200 sprintf (scratchbuf, "%%tr%d", reg);
4201 oappend (scratchbuf + intel_syntax);
4202 }
4203
4204 static void
4205 OP_Rd (int bytemode, int sizeflag)
4206 {
4207 if (mod == 3)
4208 OP_E (bytemode, sizeflag);
4209 else
4210 BadOp ();
4211 }
4212
4213 static void
4214 OP_MMX (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
4215 {
4216 used_prefixes |= (prefixes & PREFIX_DATA);
4217 if (prefixes & PREFIX_DATA)
4218 {
4219 int add = 0;
4220 USED_REX (REX_EXTX);
4221 if (rex & REX_EXTX)
4222 add = 8;
4223 sprintf (scratchbuf, "%%xmm%d", reg + add);
4224 }
4225 else
4226 sprintf (scratchbuf, "%%mm%d", reg);
4227 oappend (scratchbuf + intel_syntax);
4228 }
4229
4230 static void
4231 OP_XMM (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
4232 {
4233 int add = 0;
4234 USED_REX (REX_EXTX);
4235 if (rex & REX_EXTX)
4236 add = 8;
4237 sprintf (scratchbuf, "%%xmm%d", reg + add);
4238 oappend (scratchbuf + intel_syntax);
4239 }
4240
4241 static void
4242 OP_EM (int bytemode, int sizeflag)
4243 {
4244 if (mod != 3)
4245 {
4246 if (intel_syntax && bytemode == v_mode)
4247 {
4248 bytemode = (prefixes & PREFIX_DATA) ? x_mode : q_mode;
4249 used_prefixes |= (prefixes & PREFIX_DATA);
4250 }
4251 OP_E (bytemode, sizeflag);
4252 return;
4253 }
4254
4255 /* Skip mod/rm byte. */
4256 MODRM_CHECK;
4257 codep++;
4258 used_prefixes |= (prefixes & PREFIX_DATA);
4259 if (prefixes & PREFIX_DATA)
4260 {
4261 int add = 0;
4262
4263 USED_REX (REX_EXTZ);
4264 if (rex & REX_EXTZ)
4265 add = 8;
4266 sprintf (scratchbuf, "%%xmm%d", rm + add);
4267 }
4268 else
4269 sprintf (scratchbuf, "%%mm%d", rm);
4270 oappend (scratchbuf + intel_syntax);
4271 }
4272
4273 static void
4274 OP_EX (int bytemode, int sizeflag)
4275 {
4276 int add = 0;
4277 if (mod != 3)
4278 {
4279 if (intel_syntax && bytemode == v_mode)
4280 {
4281 switch (prefixes & (PREFIX_DATA|PREFIX_REPZ|PREFIX_REPNZ))
4282 {
4283 case 0: bytemode = x_mode; break;
4284 case PREFIX_REPZ: bytemode = d_mode; used_prefixes |= PREFIX_REPZ; break;
4285 case PREFIX_DATA: bytemode = x_mode; used_prefixes |= PREFIX_DATA; break;
4286 case PREFIX_REPNZ: bytemode = q_mode; used_prefixes |= PREFIX_REPNZ; break;
4287 default: bytemode = 0; break;
4288 }
4289 }
4290 OP_E (bytemode, sizeflag);
4291 return;
4292 }
4293 USED_REX (REX_EXTZ);
4294 if (rex & REX_EXTZ)
4295 add = 8;
4296
4297 /* Skip mod/rm byte. */
4298 MODRM_CHECK;
4299 codep++;
4300 sprintf (scratchbuf, "%%xmm%d", rm + add);
4301 oappend (scratchbuf + intel_syntax);
4302 }
4303
4304 static void
4305 OP_MS (int bytemode, int sizeflag)
4306 {
4307 if (mod == 3)
4308 OP_EM (bytemode, sizeflag);
4309 else
4310 BadOp ();
4311 }
4312
4313 static void
4314 OP_XS (int bytemode, int sizeflag)
4315 {
4316 if (mod == 3)
4317 OP_EX (bytemode, sizeflag);
4318 else
4319 BadOp ();
4320 }
4321
4322 static void
4323 OP_M (int bytemode, int sizeflag)
4324 {
4325 if (mod == 3)
4326 BadOp (); /* bad lea,lds,les,lfs,lgs,lss modrm */
4327 else
4328 OP_E (bytemode, sizeflag);
4329 }
4330
4331 static void
4332 OP_0f07 (int bytemode, int sizeflag)
4333 {
4334 if (mod != 3 || rm != 0)
4335 BadOp ();
4336 else
4337 OP_E (bytemode, sizeflag);
4338 }
4339
4340 static void
4341 OP_0fae (int bytemode, int sizeflag)
4342 {
4343 if (mod == 3)
4344 {
4345 if (reg == 7)
4346 strcpy (obuf + strlen (obuf) - sizeof ("clflush") + 1, "sfence");
4347
4348 if (reg < 5 || rm != 0)
4349 {
4350 BadOp (); /* bad sfence, mfence, or lfence */
4351 return;
4352 }
4353 }
4354 else if (reg != 7)
4355 {
4356 BadOp (); /* bad clflush */
4357 return;
4358 }
4359
4360 OP_E (bytemode, sizeflag);
4361 }
4362
4363 static void
4364 NOP_Fixup (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
4365 {
4366 /* NOP with REPZ prefix is called PAUSE. */
4367 if (prefixes == PREFIX_REPZ)
4368 strcpy (obuf, "pause");
4369 }
4370
4371 static const char *const Suffix3DNow[] = {
4372 /* 00 */ NULL, NULL, NULL, NULL,
4373 /* 04 */ NULL, NULL, NULL, NULL,
4374 /* 08 */ NULL, NULL, NULL, NULL,
4375 /* 0C */ "pi2fw", "pi2fd", NULL, NULL,
4376 /* 10 */ NULL, NULL, NULL, NULL,
4377 /* 14 */ NULL, NULL, NULL, NULL,
4378 /* 18 */ NULL, NULL, NULL, NULL,
4379 /* 1C */ "pf2iw", "pf2id", NULL, NULL,
4380 /* 20 */ NULL, NULL, NULL, NULL,
4381 /* 24 */ NULL, NULL, NULL, NULL,
4382 /* 28 */ NULL, NULL, NULL, NULL,
4383 /* 2C */ NULL, NULL, NULL, NULL,
4384 /* 30 */ NULL, NULL, NULL, NULL,
4385 /* 34 */ NULL, NULL, NULL, NULL,
4386 /* 38 */ NULL, NULL, NULL, NULL,
4387 /* 3C */ NULL, NULL, NULL, NULL,
4388 /* 40 */ NULL, NULL, NULL, NULL,
4389 /* 44 */ NULL, NULL, NULL, NULL,
4390 /* 48 */ NULL, NULL, NULL, NULL,
4391 /* 4C */ NULL, NULL, NULL, NULL,
4392 /* 50 */ NULL, NULL, NULL, NULL,
4393 /* 54 */ NULL, NULL, NULL, NULL,
4394 /* 58 */ NULL, NULL, NULL, NULL,
4395 /* 5C */ NULL, NULL, NULL, NULL,
4396 /* 60 */ NULL, NULL, NULL, NULL,
4397 /* 64 */ NULL, NULL, NULL, NULL,
4398 /* 68 */ NULL, NULL, NULL, NULL,
4399 /* 6C */ NULL, NULL, NULL, NULL,
4400 /* 70 */ NULL, NULL, NULL, NULL,
4401 /* 74 */ NULL, NULL, NULL, NULL,
4402 /* 78 */ NULL, NULL, NULL, NULL,
4403 /* 7C */ NULL, NULL, NULL, NULL,
4404 /* 80 */ NULL, NULL, NULL, NULL,
4405 /* 84 */ NULL, NULL, NULL, NULL,
4406 /* 88 */ NULL, NULL, "pfnacc", NULL,
4407 /* 8C */ NULL, NULL, "pfpnacc", NULL,
4408 /* 90 */ "pfcmpge", NULL, NULL, NULL,
4409 /* 94 */ "pfmin", NULL, "pfrcp", "pfrsqrt",
4410 /* 98 */ NULL, NULL, "pfsub", NULL,
4411 /* 9C */ NULL, NULL, "pfadd", NULL,
4412 /* A0 */ "pfcmpgt", NULL, NULL, NULL,
4413 /* A4 */ "pfmax", NULL, "pfrcpit1", "pfrsqit1",
4414 /* A8 */ NULL, NULL, "pfsubr", NULL,
4415 /* AC */ NULL, NULL, "pfacc", NULL,
4416 /* B0 */ "pfcmpeq", NULL, NULL, NULL,
4417 /* B4 */ "pfmul", NULL, "pfrcpit2", "pfmulhrw",
4418 /* B8 */ NULL, NULL, NULL, "pswapd",
4419 /* BC */ NULL, NULL, NULL, "pavgusb",
4420 /* C0 */ NULL, NULL, NULL, NULL,
4421 /* C4 */ NULL, NULL, NULL, NULL,
4422 /* C8 */ NULL, NULL, NULL, NULL,
4423 /* CC */ NULL, NULL, NULL, NULL,
4424 /* D0 */ NULL, NULL, NULL, NULL,
4425 /* D4 */ NULL, NULL, NULL, NULL,
4426 /* D8 */ NULL, NULL, NULL, NULL,
4427 /* DC */ NULL, NULL, NULL, NULL,
4428 /* E0 */ NULL, NULL, NULL, NULL,
4429 /* E4 */ NULL, NULL, NULL, NULL,
4430 /* E8 */ NULL, NULL, NULL, NULL,
4431 /* EC */ NULL, NULL, NULL, NULL,
4432 /* F0 */ NULL, NULL, NULL, NULL,
4433 /* F4 */ NULL, NULL, NULL, NULL,
4434 /* F8 */ NULL, NULL, NULL, NULL,
4435 /* FC */ NULL, NULL, NULL, NULL,
4436 };
4437
4438 static void
4439 OP_3DNowSuffix (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
4440 {
4441 const char *mnemonic;
4442
4443 FETCH_DATA (the_info, codep + 1);
4444 /* AMD 3DNow! instructions are specified by an opcode suffix in the
4445 place where an 8-bit immediate would normally go. ie. the last
4446 byte of the instruction. */
4447 obufp = obuf + strlen (obuf);
4448 mnemonic = Suffix3DNow[*codep++ & 0xff];
4449 if (mnemonic)
4450 oappend (mnemonic);
4451 else
4452 {
4453 /* Since a variable sized modrm/sib chunk is between the start
4454 of the opcode (0x0f0f) and the opcode suffix, we need to do
4455 all the modrm processing first, and don't know until now that
4456 we have a bad opcode. This necessitates some cleaning up. */
4457 op1out[0] = '\0';
4458 op2out[0] = '\0';
4459 BadOp ();
4460 }
4461 }
4462
4463 static const char *simd_cmp_op[] = {
4464 "eq",
4465 "lt",
4466 "le",
4467 "unord",
4468 "neq",
4469 "nlt",
4470 "nle",
4471 "ord"
4472 };
4473
4474 static void
4475 OP_SIMD_Suffix (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
4476 {
4477 unsigned int cmp_type;
4478
4479 FETCH_DATA (the_info, codep + 1);
4480 obufp = obuf + strlen (obuf);
4481 cmp_type = *codep++ & 0xff;
4482 if (cmp_type < 8)
4483 {
4484 char suffix1 = 'p', suffix2 = 's';
4485 used_prefixes |= (prefixes & PREFIX_REPZ);
4486 if (prefixes & PREFIX_REPZ)
4487 suffix1 = 's';
4488 else
4489 {
4490 used_prefixes |= (prefixes & PREFIX_DATA);
4491 if (prefixes & PREFIX_DATA)
4492 suffix2 = 'd';
4493 else
4494 {
4495 used_prefixes |= (prefixes & PREFIX_REPNZ);
4496 if (prefixes & PREFIX_REPNZ)
4497 suffix1 = 's', suffix2 = 'd';
4498 }
4499 }
4500 sprintf (scratchbuf, "cmp%s%c%c",
4501 simd_cmp_op[cmp_type], suffix1, suffix2);
4502 used_prefixes |= (prefixes & PREFIX_REPZ);
4503 oappend (scratchbuf);
4504 }
4505 else
4506 {
4507 /* We have a bad extension byte. Clean up. */
4508 op1out[0] = '\0';
4509 op2out[0] = '\0';
4510 BadOp ();
4511 }
4512 }
4513
4514 static void
4515 SIMD_Fixup (int extrachar, int sizeflag ATTRIBUTE_UNUSED)
4516 {
4517 /* Change movlps/movhps to movhlps/movlhps for 2 register operand
4518 forms of these instructions. */
4519 if (mod == 3)
4520 {
4521 char *p = obuf + strlen (obuf);
4522 *(p + 1) = '\0';
4523 *p = *(p - 1);
4524 *(p - 1) = *(p - 2);
4525 *(p - 2) = *(p - 3);
4526 *(p - 3) = extrachar;
4527 }
4528 }
4529
4530 static void
4531 PNI_Fixup (int extrachar ATTRIBUTE_UNUSED, int sizeflag)
4532 {
4533 if (mod == 3 && reg == 1 && rm <= 1)
4534 {
4535 /* Override "sidt". */
4536 size_t olen = strlen (obuf);
4537 char *p = obuf + olen - 4;
4538 const char **names = (address_mode == mode_64bit
4539 ? names64 : names32);
4540
4541 /* We might have a suffix when disassembling with -Msuffix. */
4542 if (*p == 'i')
4543 --p;
4544
4545 /* Remove "addr16/addr32" if we aren't in Intel mode. */
4546 if (!intel_syntax
4547 && (prefixes & PREFIX_ADDR)
4548 && olen >= (4 + 7)
4549 && *(p - 1) == ' '
4550 && strncmp (p - 7, "addr", 4) == 0
4551 && (strncmp (p - 3, "16", 2) == 0
4552 || strncmp (p - 3, "32", 2) == 0))
4553 p -= 7;
4554
4555 if (rm)
4556 {
4557 /* mwait %eax,%ecx */
4558 strcpy (p, "mwait");
4559 if (!intel_syntax)
4560 strcpy (op1out, names[0]);
4561 }
4562 else
4563 {
4564 /* monitor %eax,%ecx,%edx" */
4565 strcpy (p, "monitor");
4566 if (!intel_syntax)
4567 {
4568 const char **op1_names;
4569 if (!(prefixes & PREFIX_ADDR))
4570 op1_names = (address_mode == mode_16bit
4571 ? names16 : names);
4572 else
4573 {
4574 op1_names = (address_mode != mode_32bit
4575 ? names32 : names16);
4576 used_prefixes |= PREFIX_ADDR;
4577 }
4578 strcpy (op1out, op1_names[0]);
4579 strcpy (op3out, names[2]);
4580 }
4581 }
4582 if (!intel_syntax)
4583 {
4584 strcpy (op2out, names[1]);
4585 two_source_ops = 1;
4586 }
4587
4588 codep++;
4589 }
4590 else
4591 OP_M (0, sizeflag);
4592 }
4593
4594 static void
4595 SVME_Fixup (int bytemode, int sizeflag)
4596 {
4597 const char *alt;
4598 char *p;
4599
4600 switch (*codep)
4601 {
4602 case 0xd8:
4603 alt = "vmrun";
4604 break;
4605 case 0xd9:
4606 alt = "vmmcall";
4607 break;
4608 case 0xda:
4609 alt = "vmload";
4610 break;
4611 case 0xdb:
4612 alt = "vmsave";
4613 break;
4614 case 0xdc:
4615 alt = "stgi";
4616 break;
4617 case 0xdd:
4618 alt = "clgi";
4619 break;
4620 case 0xde:
4621 alt = "skinit";
4622 break;
4623 case 0xdf:
4624 alt = "invlpga";
4625 break;
4626 default:
4627 OP_M (bytemode, sizeflag);
4628 return;
4629 }
4630 /* Override "lidt". */
4631 p = obuf + strlen (obuf) - 4;
4632 /* We might have a suffix. */
4633 if (*p == 'i')
4634 --p;
4635 strcpy (p, alt);
4636 if (!(prefixes & PREFIX_ADDR))
4637 {
4638 ++codep;
4639 return;
4640 }
4641 used_prefixes |= PREFIX_ADDR;
4642 switch (*codep++)
4643 {
4644 case 0xdf:
4645 strcpy (op2out, names32[1]);
4646 two_source_ops = 1;
4647 /* Fall through. */
4648 case 0xd8:
4649 case 0xda:
4650 case 0xdb:
4651 *obufp++ = open_char;
4652 if (address_mode == mode_64bit || (sizeflag & AFLAG))
4653 alt = names32[0];
4654 else
4655 alt = names16[0];
4656 strcpy (obufp, alt);
4657 obufp += strlen (alt);
4658 *obufp++ = close_char;
4659 *obufp = '\0';
4660 break;
4661 }
4662 }
4663
4664 static void
4665 INVLPG_Fixup (int bytemode, int sizeflag)
4666 {
4667 const char *alt;
4668
4669 switch (*codep)
4670 {
4671 case 0xf8:
4672 alt = "swapgs";
4673 break;
4674 case 0xf9:
4675 alt = "rdtscp";
4676 break;
4677 default:
4678 OP_M (bytemode, sizeflag);
4679 return;
4680 }
4681 /* Override "invlpg". */
4682 strcpy (obuf + strlen (obuf) - 6, alt);
4683 codep++;
4684 }
4685
4686 static void
4687 BadOp (void)
4688 {
4689 /* Throw away prefixes and 1st. opcode byte. */
4690 codep = insn_codep + 1;
4691 oappend ("(bad)");
4692 }
4693
4694 static void
4695 SEG_Fixup (int extrachar, int sizeflag)
4696 {
4697 if (mod == 3)
4698 {
4699 /* We need to add a proper suffix with
4700
4701 movw %ds,%ax
4702 movl %ds,%eax
4703 movq %ds,%rax
4704 movw %ax,%ds
4705 movl %eax,%ds
4706 movq %rax,%ds
4707 */
4708 const char *suffix;
4709
4710 if (prefixes & PREFIX_DATA)
4711 suffix = "w";
4712 else
4713 {
4714 USED_REX (REX_MODE64);
4715 if (rex & REX_MODE64)
4716 suffix = "q";
4717 else
4718 suffix = "l";
4719 }
4720 strcat (obuf, suffix);
4721 }
4722 else
4723 {
4724 /* We need to fix the suffix for
4725
4726 movw %ds,(%eax)
4727 movw %ds,(%rax)
4728 movw (%eax),%ds
4729 movw (%rax),%ds
4730
4731 Override "mov[l|q]". */
4732 char *p = obuf + strlen (obuf) - 1;
4733
4734 /* We might not have a suffix. */
4735 if (*p == 'v')
4736 ++p;
4737 *p = 'w';
4738 }
4739
4740 OP_E (extrachar, sizeflag);
4741 }
4742
4743 static void
4744 VMX_Fixup (int extrachar ATTRIBUTE_UNUSED, int sizeflag)
4745 {
4746 if (mod == 3 && reg == 0 && rm >=1 && rm <= 4)
4747 {
4748 /* Override "sgdt". */
4749 char *p = obuf + strlen (obuf) - 4;
4750
4751 /* We might have a suffix when disassembling with -Msuffix. */
4752 if (*p == 'g')
4753 --p;
4754
4755 switch (rm)
4756 {
4757 case 1:
4758 strcpy (p, "vmcall");
4759 break;
4760 case 2:
4761 strcpy (p, "vmlaunch");
4762 break;
4763 case 3:
4764 strcpy (p, "vmresume");
4765 break;
4766 case 4:
4767 strcpy (p, "vmxoff");
4768 break;
4769 }
4770
4771 codep++;
4772 }
4773 else
4774 OP_E (0, sizeflag);
4775 }
4776
4777 static void
4778 OP_VMX (int bytemode, int sizeflag)
4779 {
4780 used_prefixes |= (prefixes & (PREFIX_DATA | PREFIX_REPZ));
4781 if (prefixes & PREFIX_DATA)
4782 strcpy (obuf, "vmclear");
4783 else if (prefixes & PREFIX_REPZ)
4784 strcpy (obuf, "vmxon");
4785 else
4786 strcpy (obuf, "vmptrld");
4787 OP_E (bytemode, sizeflag);
4788 }
4789
4790 static void
4791 REP_Fixup (int bytemode, int sizeflag)
4792 {
4793 /* The 0xf3 prefix should be displayed as "rep" for ins, outs, movs,
4794 lods and stos. */
4795 size_t ilen = 0;
4796
4797 if (prefixes & PREFIX_REPZ)
4798 switch (*insn_codep)
4799 {
4800 case 0x6e: /* outsb */
4801 case 0x6f: /* outsw/outsl */
4802 case 0xa4: /* movsb */
4803 case 0xa5: /* movsw/movsl/movsq */
4804 if (!intel_syntax)
4805 ilen = 5;
4806 else
4807 ilen = 4;
4808 break;
4809 case 0xaa: /* stosb */
4810 case 0xab: /* stosw/stosl/stosq */
4811 case 0xac: /* lodsb */
4812 case 0xad: /* lodsw/lodsl/lodsq */
4813 if (!intel_syntax && (sizeflag & SUFFIX_ALWAYS))
4814 ilen = 5;
4815 else
4816 ilen = 4;
4817 break;
4818 case 0x6c: /* insb */
4819 case 0x6d: /* insl/insw */
4820 if (!intel_syntax)
4821 ilen = 4;
4822 else
4823 ilen = 3;
4824 break;
4825 default:
4826 abort ();
4827 break;
4828 }
4829
4830 if (ilen != 0)
4831 {
4832 size_t olen;
4833 char *p;
4834
4835 olen = strlen (obuf);
4836 p = obuf + olen - ilen - 1 - 4;
4837 /* Handle "repz [addr16|addr32]". */
4838 if ((prefixes & PREFIX_ADDR))
4839 p -= 1 + 6;
4840
4841 memmove (p + 3, p + 4, olen - (p + 3 - obuf));
4842 }
4843
4844 switch (bytemode)
4845 {
4846 case al_reg:
4847 case eAX_reg:
4848 case indir_dx_reg:
4849 OP_IMREG (bytemode, sizeflag);
4850 break;
4851 case eDI_reg:
4852 OP_ESreg (bytemode, sizeflag);
4853 break;
4854 case eSI_reg:
4855 OP_DSreg (bytemode, sizeflag);
4856 break;
4857 default:
4858 abort ();
4859 break;
4860 }
4861 }
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