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root/cebix/mon/src/disass/i386-dis.c
Revision: 1.4
Committed: 2008-01-01T14:58:01Z (16 years, 10 months ago) by gbeauche
Content type: text/plain
Branch: MAIN
CVS Tags: HEAD
Changes since 1.3: +3089 -1448 lines
Log Message:
Merge with GNU x86 disassembler as part of binutils 2.17.50.0.9 which brings
everything up to SSSE3 support.

File Contents

# Content
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, 2006 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 "opintl.h"
36
37 #define MAXLEN 15
38
39 #include <setjmp.h>
40
41 #ifndef UNIXWARE_COMPAT
42 /* Set non-zero for broken, compatible instructions. Set to zero for
43 non-broken opcodes. */
44 #define UNIXWARE_COMPAT 1
45 #endif
46
47 static int fetch_data (struct disassemble_info *, bfd_byte *);
48 static void ckprefix (void);
49 static const char *prefix_name (int, int);
50 static int print_insn (bfd_vma, disassemble_info *);
51 static void dofloat (int);
52 static void OP_ST (int, int);
53 static void OP_STi (int, int);
54 static int putop (const char *, int);
55 static void oappend (const char *);
56 static void append_seg (void);
57 static void OP_indirE (int, int);
58 static void print_operand_value (char *, int, bfd_vma);
59 static void OP_E (int, int);
60 static void OP_G (int, int);
61 static bfd_vma get64 (void);
62 static bfd_signed_vma get32 (void);
63 static bfd_signed_vma get32s (void);
64 static int get16 (void);
65 static void set_op (bfd_vma, int);
66 static void OP_REG (int, int);
67 static void OP_IMREG (int, int);
68 static void OP_I (int, int);
69 static void OP_I64 (int, int);
70 static void OP_sI (int, int);
71 static void OP_J (int, int);
72 static void OP_SEG (int, int);
73 static void OP_DIR (int, int);
74 static void OP_OFF (int, int);
75 static void OP_OFF64 (int, int);
76 static void ptr_reg (int, int);
77 static void OP_ESreg (int, int);
78 static void OP_DSreg (int, int);
79 static void OP_C (int, int);
80 static void OP_D (int, int);
81 static void OP_T (int, int);
82 static void OP_Rd (int, int);
83 static void OP_MMX (int, int);
84 static void OP_XMM (int, int);
85 static void OP_EM (int, int);
86 static void OP_EX (int, int);
87 static void OP_EMC (int,int);
88 static void OP_MXC (int,int);
89 static void OP_MS (int, int);
90 static void OP_XS (int, int);
91 static void OP_M (int, int);
92 static void OP_VMX (int, int);
93 static void OP_0fae (int, int);
94 static void OP_0f07 (int, int);
95 static void NOP_Fixup1 (int, int);
96 static void NOP_Fixup2 (int, int);
97 static void OP_3DNowSuffix (int, int);
98 static void OP_SIMD_Suffix (int, int);
99 static void SIMD_Fixup (int, int);
100 static void PNI_Fixup (int, int);
101 static void SVME_Fixup (int, int);
102 static void INVLPG_Fixup (int, int);
103 static void BadOp (void);
104 static void VMX_Fixup (int, int);
105 static void REP_Fixup (int, int);
106 static void CMPXCHG8B_Fixup (int, int);
107
108 struct dis_private {
109 /* Points to first byte not fetched. */
110 bfd_byte *max_fetched;
111 bfd_byte the_buffer[MAXLEN];
112 bfd_vma insn_start;
113 int orig_sizeflag;
114 jmp_buf bailout;
115 };
116
117 /* The opcode for the fwait instruction, which we treat as a prefix
118 when we can. */
119 #define FWAIT_OPCODE (0x9b)
120
121 enum address_mode
122 {
123 mode_16bit,
124 mode_32bit,
125 mode_64bit
126 };
127
128 enum address_mode address_mode;
129
130 /* Flags for the prefixes for the current instruction. See below. */
131 static int prefixes;
132
133 /* REX prefix the current instruction. See below. */
134 static int rex;
135 /* Bits of REX we've already used. */
136 static int rex_used;
137 #define REX_MODE64 8
138 #define REX_EXTX 4
139 #define REX_EXTY 2
140 #define REX_EXTZ 1
141 /* Mark parts used in the REX prefix. When we are testing for
142 empty prefix (for 8bit register REX extension), just mask it
143 out. Otherwise test for REX bit is excuse for existence of REX
144 only in case value is nonzero. */
145 #define USED_REX(value) \
146 { \
147 if (value) \
148 rex_used |= (rex & value) ? (value) | 0x40 : 0; \
149 else \
150 rex_used |= 0x40; \
151 }
152
153 /* Flags for prefixes which we somehow handled when printing the
154 current instruction. */
155 static int used_prefixes;
156
157 /* Flags stored in PREFIXES. */
158 #define PREFIX_REPZ 1
159 #define PREFIX_REPNZ 2
160 #define PREFIX_LOCK 4
161 #define PREFIX_CS 8
162 #define PREFIX_SS 0x10
163 #define PREFIX_DS 0x20
164 #define PREFIX_ES 0x40
165 #define PREFIX_FS 0x80
166 #define PREFIX_GS 0x100
167 #define PREFIX_DATA 0x200
168 #define PREFIX_ADDR 0x400
169 #define PREFIX_FWAIT 0x800
170
171 /* Make sure that bytes from INFO->PRIVATE_DATA->BUFFER (inclusive)
172 to ADDR (exclusive) are valid. Returns 1 for success, longjmps
173 on error. */
174 #define FETCH_DATA(info, addr) \
175 ((addr) <= ((struct dis_private *) (info->private_data))->max_fetched \
176 ? 1 : fetch_data ((info), (addr)))
177
178 static int
179 fetch_data (struct disassemble_info *info, bfd_byte *addr)
180 {
181 int status;
182 struct dis_private *priv = (struct dis_private *) info->private_data;
183 bfd_vma start = priv->insn_start + (priv->max_fetched - priv->the_buffer);
184
185 if (addr <= priv->the_buffer + MAXLEN)
186 status = (*info->read_memory_func) (start,
187 priv->max_fetched,
188 addr - priv->max_fetched,
189 info);
190 else
191 status = -1;
192 if (status != 0)
193 {
194 /* If we did manage to read at least one byte, then
195 print_insn_i386 will do something sensible. Otherwise, print
196 an error. We do that here because this is where we know
197 STATUS. */
198 if (priv->max_fetched == priv->the_buffer)
199 (*info->memory_error_func) (status, start, info);
200 longjmp (priv->bailout, 1);
201 }
202 else
203 priv->max_fetched = addr;
204 return 1;
205 }
206
207 #define XX NULL, 0
208
209 #define Eb OP_E, b_mode
210 #define Ev OP_E, v_mode
211 #define Ed OP_E, d_mode
212 #define Edq OP_E, dq_mode
213 #define Edqw OP_E, dqw_mode
214 #define indirEv OP_indirE, stack_v_mode
215 #define indirEp OP_indirE, f_mode
216 #define stackEv OP_E, stack_v_mode
217 #define Em OP_E, m_mode
218 #define Ew OP_E, w_mode
219 #define M OP_M, 0 /* lea, lgdt, etc. */
220 #define Ma OP_M, v_mode
221 #define Mp OP_M, f_mode /* 32 or 48 bit memory operand for LDS, LES etc */
222 #define Mq OP_M, q_mode
223 #define Gb OP_G, b_mode
224 #define Gv OP_G, v_mode
225 #define Gd OP_G, d_mode
226 #define Gdq OP_G, dq_mode
227 #define Gm OP_G, m_mode
228 #define Gw OP_G, w_mode
229 #define Rd OP_Rd, d_mode
230 #define Rm OP_Rd, m_mode
231 #define Ib OP_I, b_mode
232 #define sIb OP_sI, b_mode /* sign extened byte */
233 #define Iv OP_I, v_mode
234 #define Iq OP_I, q_mode
235 #define Iv64 OP_I64, v_mode
236 #define Iw OP_I, w_mode
237 #define I1 OP_I, const_1_mode
238 #define Jb OP_J, b_mode
239 #define Jv OP_J, v_mode
240 #define Cm OP_C, m_mode
241 #define Dm OP_D, m_mode
242 #define Td OP_T, d_mode
243
244 #define RMeAX OP_REG, eAX_reg
245 #define RMeBX OP_REG, eBX_reg
246 #define RMeCX OP_REG, eCX_reg
247 #define RMeDX OP_REG, eDX_reg
248 #define RMeSP OP_REG, eSP_reg
249 #define RMeBP OP_REG, eBP_reg
250 #define RMeSI OP_REG, eSI_reg
251 #define RMeDI OP_REG, eDI_reg
252 #define RMrAX OP_REG, rAX_reg
253 #define RMrBX OP_REG, rBX_reg
254 #define RMrCX OP_REG, rCX_reg
255 #define RMrDX OP_REG, rDX_reg
256 #define RMrSP OP_REG, rSP_reg
257 #define RMrBP OP_REG, rBP_reg
258 #define RMrSI OP_REG, rSI_reg
259 #define RMrDI OP_REG, rDI_reg
260 #define RMAL OP_REG, al_reg
261 #define RMAL OP_REG, al_reg
262 #define RMCL OP_REG, cl_reg
263 #define RMDL OP_REG, dl_reg
264 #define RMBL OP_REG, bl_reg
265 #define RMAH OP_REG, ah_reg
266 #define RMCH OP_REG, ch_reg
267 #define RMDH OP_REG, dh_reg
268 #define RMBH OP_REG, bh_reg
269 #define RMAX OP_REG, ax_reg
270 #define RMDX OP_REG, dx_reg
271
272 #define eAX OP_IMREG, eAX_reg
273 #define eBX OP_IMREG, eBX_reg
274 #define eCX OP_IMREG, eCX_reg
275 #define eDX OP_IMREG, eDX_reg
276 #define eSP OP_IMREG, eSP_reg
277 #define eBP OP_IMREG, eBP_reg
278 #define eSI OP_IMREG, eSI_reg
279 #define eDI OP_IMREG, eDI_reg
280 #define AL OP_IMREG, al_reg
281 #define CL OP_IMREG, cl_reg
282 #define DL OP_IMREG, dl_reg
283 #define BL OP_IMREG, bl_reg
284 #define AH OP_IMREG, ah_reg
285 #define CH OP_IMREG, ch_reg
286 #define DH OP_IMREG, dh_reg
287 #define BH OP_IMREG, bh_reg
288 #define AX OP_IMREG, ax_reg
289 #define DX OP_IMREG, dx_reg
290 #define zAX OP_IMREG, z_mode_ax_reg
291 #define indirDX OP_IMREG, indir_dx_reg
292
293 #define Sw OP_SEG, w_mode
294 #define Sv OP_SEG, v_mode
295 #define Ap OP_DIR, 0
296 #define Ob OP_OFF64, b_mode
297 #define Ov OP_OFF64, v_mode
298 #define Xb OP_DSreg, eSI_reg
299 #define Xv OP_DSreg, eSI_reg
300 #define Xz OP_DSreg, eSI_reg
301 #define Yb OP_ESreg, eDI_reg
302 #define Yv OP_ESreg, eDI_reg
303 #define DSBX OP_DSreg, eBX_reg
304
305 #define es OP_REG, es_reg
306 #define ss OP_REG, ss_reg
307 #define cs OP_REG, cs_reg
308 #define ds OP_REG, ds_reg
309 #define fs OP_REG, fs_reg
310 #define gs OP_REG, gs_reg
311
312 #define MX OP_MMX, 0
313 #define XM OP_XMM, 0
314 #define EM OP_EM, v_mode
315 #define EX OP_EX, v_mode
316 #define MS OP_MS, v_mode
317 #define XS OP_XS, v_mode
318 #define EMC OP_EMC, v_mode
319 #define MXC OP_MXC, 0
320 #define VM OP_VMX, q_mode
321 #define OPSUF OP_3DNowSuffix, 0
322 #define OPSIMD OP_SIMD_Suffix, 0
323
324 /* Used handle "rep" prefix for string instructions. */
325 #define Xbr REP_Fixup, eSI_reg
326 #define Xvr REP_Fixup, eSI_reg
327 #define Ybr REP_Fixup, eDI_reg
328 #define Yvr REP_Fixup, eDI_reg
329 #define Yzr REP_Fixup, eDI_reg
330 #define indirDXr REP_Fixup, indir_dx_reg
331 #define ALr REP_Fixup, al_reg
332 #define eAXr REP_Fixup, eAX_reg
333
334 #define cond_jump_flag NULL, cond_jump_mode
335 #define loop_jcxz_flag NULL, loop_jcxz_mode
336
337 /* bits in sizeflag */
338 #define SUFFIX_ALWAYS 4
339 #define AFLAG 2
340 #define DFLAG 1
341
342 #define b_mode 1 /* byte operand */
343 #define v_mode 2 /* operand size depends on prefixes */
344 #define w_mode 3 /* word operand */
345 #define d_mode 4 /* double word operand */
346 #define q_mode 5 /* quad word operand */
347 #define t_mode 6 /* ten-byte operand */
348 #define x_mode 7 /* 16-byte XMM operand */
349 #define m_mode 8 /* d_mode in 32bit, q_mode in 64bit mode. */
350 #define cond_jump_mode 9
351 #define loop_jcxz_mode 10
352 #define dq_mode 11 /* operand size depends on REX prefixes. */
353 #define dqw_mode 12 /* registers like dq_mode, memory like w_mode. */
354 #define f_mode 13 /* 4- or 6-byte pointer operand */
355 #define const_1_mode 14
356 #define stack_v_mode 15 /* v_mode for stack-related opcodes. */
357 #define z_mode 16 /* non-quad operand size depends on prefixes */
358 #define o_mode 17 /* 16-byte operand */
359
360 #define es_reg 100
361 #define cs_reg 101
362 #define ss_reg 102
363 #define ds_reg 103
364 #define fs_reg 104
365 #define gs_reg 105
366
367 #define eAX_reg 108
368 #define eCX_reg 109
369 #define eDX_reg 110
370 #define eBX_reg 111
371 #define eSP_reg 112
372 #define eBP_reg 113
373 #define eSI_reg 114
374 #define eDI_reg 115
375
376 #define al_reg 116
377 #define cl_reg 117
378 #define dl_reg 118
379 #define bl_reg 119
380 #define ah_reg 120
381 #define ch_reg 121
382 #define dh_reg 122
383 #define bh_reg 123
384
385 #define ax_reg 124
386 #define cx_reg 125
387 #define dx_reg 126
388 #define bx_reg 127
389 #define sp_reg 128
390 #define bp_reg 129
391 #define si_reg 130
392 #define di_reg 131
393
394 #define rAX_reg 132
395 #define rCX_reg 133
396 #define rDX_reg 134
397 #define rBX_reg 135
398 #define rSP_reg 136
399 #define rBP_reg 137
400 #define rSI_reg 138
401 #define rDI_reg 139
402
403 #define z_mode_ax_reg 149
404 #define indir_dx_reg 150
405
406 #define FLOATCODE 1
407 #define USE_GROUPS 2
408 #define USE_PREFIX_USER_TABLE 3
409 #define X86_64_SPECIAL 4
410 #define IS_3BYTE_OPCODE 5
411
412 #define FLOAT NULL, NULL, FLOATCODE, NULL, 0, NULL, 0, NULL, 0
413
414 #define GRP1b NULL, NULL, USE_GROUPS, NULL, 0, NULL, 0, NULL, 0
415 #define GRP1S NULL, NULL, USE_GROUPS, NULL, 1, NULL, 0, NULL, 0
416 #define GRP1Ss NULL, NULL, USE_GROUPS, NULL, 2, NULL, 0, NULL, 0
417 #define GRP2b NULL, NULL, USE_GROUPS, NULL, 3, NULL, 0, NULL, 0
418 #define GRP2S NULL, NULL, USE_GROUPS, NULL, 4, NULL, 0, NULL, 0
419 #define GRP2b_one NULL, NULL, USE_GROUPS, NULL, 5, NULL, 0, NULL, 0
420 #define GRP2S_one NULL, NULL, USE_GROUPS, NULL, 6, NULL, 0, NULL, 0
421 #define GRP2b_cl NULL, NULL, USE_GROUPS, NULL, 7, NULL, 0, NULL, 0
422 #define GRP2S_cl NULL, NULL, USE_GROUPS, NULL, 8, NULL, 0, NULL, 0
423 #define GRP3b NULL, NULL, USE_GROUPS, NULL, 9, NULL, 0, NULL, 0
424 #define GRP3S NULL, NULL, USE_GROUPS, NULL, 10, NULL, 0, NULL, 0
425 #define GRP4 NULL, NULL, USE_GROUPS, NULL, 11, NULL, 0, NULL, 0
426 #define GRP5 NULL, NULL, USE_GROUPS, NULL, 12, NULL, 0, NULL, 0
427 #define GRP6 NULL, NULL, USE_GROUPS, NULL, 13, NULL, 0, NULL, 0
428 #define GRP7 NULL, NULL, USE_GROUPS, NULL, 14, NULL, 0, NULL, 0
429 #define GRP8 NULL, NULL, USE_GROUPS, NULL, 15, NULL, 0, NULL, 0
430 #define GRP9 NULL, NULL, USE_GROUPS, NULL, 16, NULL, 0, NULL, 0
431 #define GRP11_C6 NULL, NULL, USE_GROUPS, NULL, 17, NULL, 0, NULL, 0
432 #define GRP11_C7 NULL, NULL, USE_GROUPS, NULL, 18, NULL, 0, NULL, 0
433 #define GRP12 NULL, NULL, USE_GROUPS, NULL, 19, NULL, 0, NULL, 0
434 #define GRP13 NULL, NULL, USE_GROUPS, NULL, 20, NULL, 0, NULL, 0
435 #define GRP14 NULL, NULL, USE_GROUPS, NULL, 21, NULL, 0, NULL, 0
436 #define GRP15 NULL, NULL, USE_GROUPS, NULL, 22, NULL, 0, NULL, 0
437 #define GRP16 NULL, NULL, USE_GROUPS, NULL, 23, NULL, 0, NULL, 0
438 #define GRPAMD NULL, NULL, USE_GROUPS, NULL, 24, NULL, 0, NULL, 0
439 #define GRPPADLCK1 NULL, NULL, USE_GROUPS, NULL, 25, NULL, 0, NULL, 0
440 #define GRPPADLCK2 NULL, NULL, USE_GROUPS, NULL, 26, NULL, 0, NULL, 0
441
442 #define PREGRP0 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 0, NULL, 0, NULL, 0
443 #define PREGRP1 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 1, NULL, 0, NULL, 0
444 #define PREGRP2 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 2, NULL, 0, NULL, 0
445 #define PREGRP3 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 3, NULL, 0, NULL, 0
446 #define PREGRP4 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 4, NULL, 0, NULL, 0
447 #define PREGRP5 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 5, NULL, 0, NULL, 0
448 #define PREGRP6 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 6, NULL, 0, NULL, 0
449 #define PREGRP7 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 7, NULL, 0, NULL, 0
450 #define PREGRP8 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 8, NULL, 0, NULL, 0
451 #define PREGRP9 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 9, NULL, 0, NULL, 0
452 #define PREGRP10 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 10, NULL, 0, NULL, 0
453 #define PREGRP11 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 11, NULL, 0, NULL, 0
454 #define PREGRP12 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 12, NULL, 0, NULL, 0
455 #define PREGRP13 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 13, NULL, 0, NULL, 0
456 #define PREGRP14 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 14, NULL, 0, NULL, 0
457 #define PREGRP15 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 15, NULL, 0, NULL, 0
458 #define PREGRP16 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 16, NULL, 0, NULL, 0
459 #define PREGRP17 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 17, NULL, 0, NULL, 0
460 #define PREGRP18 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 18, NULL, 0, NULL, 0
461 #define PREGRP19 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 19, NULL, 0, NULL, 0
462 #define PREGRP20 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 20, NULL, 0, NULL, 0
463 #define PREGRP21 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 21, NULL, 0, NULL, 0
464 #define PREGRP22 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 22, NULL, 0, NULL, 0
465 #define PREGRP23 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 23, NULL, 0, NULL, 0
466 #define PREGRP24 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 24, NULL, 0, NULL, 0
467 #define PREGRP25 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 25, NULL, 0, NULL, 0
468 #define PREGRP26 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 26, NULL, 0, NULL, 0
469 #define PREGRP27 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 27, NULL, 0, NULL, 0
470 #define PREGRP28 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 28, NULL, 0, NULL, 0
471 #define PREGRP29 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 29, NULL, 0, NULL, 0
472 #define PREGRP30 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 30, NULL, 0, NULL, 0
473 #define PREGRP31 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 31, NULL, 0, NULL, 0
474 #define PREGRP32 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 32, NULL, 0, NULL, 0
475 #define PREGRP33 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 33, NULL, 0, NULL, 0
476 #define PREGRP34 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 34, NULL, 0, NULL, 0
477 #define PREGRP35 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 35, NULL, 0, NULL, 0
478 #define PREGRP36 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 36, NULL, 0, NULL, 0
479 #define PREGRP37 NULL, NULL, USE_PREFIX_USER_TABLE, NULL, 37, NULL, 0, NULL, 0
480
481
482 #define X86_64_0 NULL, NULL, X86_64_SPECIAL, NULL, 0, NULL, 0, NULL, 0
483 #define X86_64_1 NULL, NULL, X86_64_SPECIAL, NULL, 1, NULL, 0, NULL, 0
484 #define X86_64_2 NULL, NULL, X86_64_SPECIAL, NULL, 2, NULL, 0, NULL, 0
485 #define X86_64_3 NULL, NULL, X86_64_SPECIAL, NULL, 3, NULL, 0, NULL, 0
486
487 #define THREE_BYTE_0 NULL, NULL, IS_3BYTE_OPCODE, NULL, 0, NULL, 0, NULL, 0
488 #define THREE_BYTE_1 NULL, NULL, IS_3BYTE_OPCODE, NULL, 1, NULL, 0, NULL, 0
489
490 typedef void (*op_rtn) (int bytemode, int sizeflag);
491
492 struct dis386 {
493 const char *name;
494 op_rtn op1;
495 int bytemode1;
496 op_rtn op2;
497 int bytemode2;
498 op_rtn op3;
499 int bytemode3;
500 op_rtn op4;
501 int bytemode4;
502 };
503
504 /* Upper case letters in the instruction names here are macros.
505 'A' => print 'b' if no register operands or suffix_always is true
506 'B' => print 'b' if suffix_always is true
507 'C' => print 's' or 'l' ('w' or 'd' in Intel mode) depending on operand
508 . size prefix
509 'D' => print 'w' if no register operands or 'w', 'l' or 'q', if
510 . suffix_always is true
511 'E' => print 'e' if 32-bit form of jcxz
512 'F' => print 'w' or 'l' depending on address size prefix (loop insns)
513 'G' => print 'w' or 'l' depending on operand size prefix (i/o insns)
514 'H' => print ",pt" or ",pn" branch hint
515 'I' => honor following macro letter even in Intel mode (implemented only
516 . for some of the macro letters)
517 'J' => print 'l'
518 'L' => print 'l' if suffix_always is true
519 'N' => print 'n' if instruction has no wait "prefix"
520 'O' => print 'd' or 'o' (or 'q' in Intel mode)
521 'P' => print 'w', 'l' or 'q' if instruction has an operand size prefix,
522 . or suffix_always is true. print 'q' if rex prefix is present.
523 'Q' => print 'w', 'l' or 'q' if no register operands or suffix_always
524 . is true
525 'R' => print 'w', 'l' or 'q' ('d' for 'l' and 'e' in Intel mode)
526 'S' => print 'w', 'l' or 'q' if suffix_always is true
527 'T' => print 'q' in 64bit mode and behave as 'P' otherwise
528 'U' => print 'q' in 64bit mode and behave as 'Q' otherwise
529 'V' => print 'q' in 64bit mode and behave as 'S' otherwise
530 'W' => print 'b', 'w' or 'l' ('d' in Intel mode)
531 'X' => print 's', 'd' depending on data16 prefix (for XMM)
532 'Y' => 'q' if instruction has an REX 64bit overwrite prefix
533 'Z' => print 'q' in 64bit mode and behave as 'L' otherwise
534
535 Many of the above letters print nothing in Intel mode. See "putop"
536 for the details.
537
538 Braces '{' and '}', and vertical bars '|', indicate alternative
539 mnemonic strings for AT&T, Intel, X86_64 AT&T, and X86_64 Intel
540 modes. In cases where there are only two alternatives, the X86_64
541 instruction is reserved, and "(bad)" is printed.
542 */
543
544 static const struct dis386 dis386[] = {
545 /* 00 */
546 { "addB", Eb, Gb, XX, XX },
547 { "addS", Ev, Gv, XX, XX },
548 { "addB", Gb, Eb, XX, XX },
549 { "addS", Gv, Ev, XX, XX },
550 { "addB", AL, Ib, XX, XX },
551 { "addS", eAX, Iv, XX, XX },
552 { "push{T|}", es, XX, XX, XX },
553 { "pop{T|}", es, XX, XX, XX },
554 /* 08 */
555 { "orB", Eb, Gb, XX, XX },
556 { "orS", Ev, Gv, XX, XX },
557 { "orB", Gb, Eb, XX, XX },
558 { "orS", Gv, Ev, XX, XX },
559 { "orB", AL, Ib, XX, XX },
560 { "orS", eAX, Iv, XX, XX },
561 { "push{T|}", cs, XX, XX, XX },
562 { "(bad)", XX, XX, XX, XX }, /* 0x0f extended opcode escape */
563 /* 10 */
564 { "adcB", Eb, Gb, XX, XX },
565 { "adcS", Ev, Gv, XX, XX },
566 { "adcB", Gb, Eb, XX, XX },
567 { "adcS", Gv, Ev, XX, XX },
568 { "adcB", AL, Ib, XX, XX },
569 { "adcS", eAX, Iv, XX, XX },
570 { "push{T|}", ss, XX, XX, XX },
571 { "pop{T|}", ss, XX, XX, XX },
572 /* 18 */
573 { "sbbB", Eb, Gb, XX, XX },
574 { "sbbS", Ev, Gv, XX, XX },
575 { "sbbB", Gb, Eb, XX, XX },
576 { "sbbS", Gv, Ev, XX, XX },
577 { "sbbB", AL, Ib, XX, XX },
578 { "sbbS", eAX, Iv, XX, XX },
579 { "push{T|}", ds, XX, XX, XX },
580 { "pop{T|}", ds, XX, XX, XX },
581 /* 20 */
582 { "andB", Eb, Gb, XX, XX },
583 { "andS", Ev, Gv, XX, XX },
584 { "andB", Gb, Eb, XX, XX },
585 { "andS", Gv, Ev, XX, XX },
586 { "andB", AL, Ib, XX, XX },
587 { "andS", eAX, Iv, XX, XX },
588 { "(bad)", XX, XX, XX, XX }, /* SEG ES prefix */
589 { "daa{|}", XX, XX, XX, XX },
590 /* 28 */
591 { "subB", Eb, Gb, XX, XX },
592 { "subS", Ev, Gv, XX, XX },
593 { "subB", Gb, Eb, XX, XX },
594 { "subS", Gv, Ev, XX, XX },
595 { "subB", AL, Ib, XX, XX },
596 { "subS", eAX, Iv, XX, XX },
597 { "(bad)", XX, XX, XX, XX }, /* SEG CS prefix */
598 { "das{|}", XX, XX, XX, XX },
599 /* 30 */
600 { "xorB", Eb, Gb, XX, XX },
601 { "xorS", Ev, Gv, XX, XX },
602 { "xorB", Gb, Eb, XX, XX },
603 { "xorS", Gv, Ev, XX, XX },
604 { "xorB", AL, Ib, XX, XX },
605 { "xorS", eAX, Iv, XX, XX },
606 { "(bad)", XX, XX, XX, XX }, /* SEG SS prefix */
607 { "aaa{|}", XX, XX, XX, XX },
608 /* 38 */
609 { "cmpB", Eb, Gb, XX, XX },
610 { "cmpS", Ev, Gv, XX, XX },
611 { "cmpB", Gb, Eb, XX, XX },
612 { "cmpS", Gv, Ev, XX, XX },
613 { "cmpB", AL, Ib, XX, XX },
614 { "cmpS", eAX, Iv, XX, XX },
615 { "(bad)", XX, XX, XX, XX }, /* SEG DS prefix */
616 { "aas{|}", XX, XX, XX, XX },
617 /* 40 */
618 { "inc{S|}", RMeAX, XX, XX, XX },
619 { "inc{S|}", RMeCX, XX, XX, XX },
620 { "inc{S|}", RMeDX, XX, XX, XX },
621 { "inc{S|}", RMeBX, XX, XX, XX },
622 { "inc{S|}", RMeSP, XX, XX, XX },
623 { "inc{S|}", RMeBP, XX, XX, XX },
624 { "inc{S|}", RMeSI, XX, XX, XX },
625 { "inc{S|}", RMeDI, XX, XX, XX },
626 /* 48 */
627 { "dec{S|}", RMeAX, XX, XX, XX },
628 { "dec{S|}", RMeCX, XX, XX, XX },
629 { "dec{S|}", RMeDX, XX, XX, XX },
630 { "dec{S|}", RMeBX, XX, XX, XX },
631 { "dec{S|}", RMeSP, XX, XX, XX },
632 { "dec{S|}", RMeBP, XX, XX, XX },
633 { "dec{S|}", RMeSI, XX, XX, XX },
634 { "dec{S|}", RMeDI, XX, XX, XX },
635 /* 50 */
636 { "pushV", RMrAX, XX, XX, XX },
637 { "pushV", RMrCX, XX, XX, XX },
638 { "pushV", RMrDX, XX, XX, XX },
639 { "pushV", RMrBX, XX, XX, XX },
640 { "pushV", RMrSP, XX, XX, XX },
641 { "pushV", RMrBP, XX, XX, XX },
642 { "pushV", RMrSI, XX, XX, XX },
643 { "pushV", RMrDI, XX, XX, XX },
644 /* 58 */
645 { "popV", RMrAX, XX, XX, XX },
646 { "popV", RMrCX, XX, XX, XX },
647 { "popV", RMrDX, XX, XX, XX },
648 { "popV", RMrBX, XX, XX, XX },
649 { "popV", RMrSP, XX, XX, XX },
650 { "popV", RMrBP, XX, XX, XX },
651 { "popV", RMrSI, XX, XX, XX },
652 { "popV", RMrDI, XX, XX, XX },
653 /* 60 */
654 { X86_64_0 },
655 { X86_64_1 },
656 { X86_64_2 },
657 { X86_64_3 },
658 { "(bad)", XX, XX, XX, XX }, /* seg fs */
659 { "(bad)", XX, XX, XX, XX }, /* seg gs */
660 { "(bad)", XX, XX, XX, XX }, /* op size prefix */
661 { "(bad)", XX, XX, XX, XX }, /* adr size prefix */
662 /* 68 */
663 { "pushT", Iq, XX, XX, XX },
664 { "imulS", Gv, Ev, Iv, XX },
665 { "pushT", sIb, XX, XX, XX },
666 { "imulS", Gv, Ev, sIb, XX },
667 { "ins{b||b|}", Ybr, indirDX, XX, XX },
668 { "ins{R||G|}", Yzr, indirDX, XX, XX },
669 { "outs{b||b|}", indirDXr, Xb, XX, XX },
670 { "outs{R||G|}", indirDXr, Xz, XX, XX },
671 /* 70 */
672 { "joH", Jb, XX, cond_jump_flag, XX },
673 { "jnoH", Jb, XX, cond_jump_flag, XX },
674 { "jbH", Jb, XX, cond_jump_flag, XX },
675 { "jaeH", Jb, XX, cond_jump_flag, XX },
676 { "jeH", Jb, XX, cond_jump_flag, XX },
677 { "jneH", Jb, XX, cond_jump_flag, XX },
678 { "jbeH", Jb, XX, cond_jump_flag, XX },
679 { "jaH", Jb, XX, cond_jump_flag, XX },
680 /* 78 */
681 { "jsH", Jb, XX, cond_jump_flag, XX },
682 { "jnsH", Jb, XX, cond_jump_flag, XX },
683 { "jpH", Jb, XX, cond_jump_flag, XX },
684 { "jnpH", Jb, XX, cond_jump_flag, XX },
685 { "jlH", Jb, XX, cond_jump_flag, XX },
686 { "jgeH", Jb, XX, cond_jump_flag, XX },
687 { "jleH", Jb, XX, cond_jump_flag, XX },
688 { "jgH", Jb, XX, cond_jump_flag, XX },
689 /* 80 */
690 { GRP1b },
691 { GRP1S },
692 { "(bad)", XX, XX, XX, XX },
693 { GRP1Ss },
694 { "testB", Eb, Gb, XX, XX },
695 { "testS", Ev, Gv, XX, XX },
696 { "xchgB", Eb, Gb, XX, XX },
697 { "xchgS", Ev, Gv, XX, XX },
698 /* 88 */
699 { "movB", Eb, Gb, XX, XX },
700 { "movS", Ev, Gv, XX, XX },
701 { "movB", Gb, Eb, XX, XX },
702 { "movS", Gv, Ev, XX, XX },
703 { "movD", Sv, Sw, XX, XX },
704 { "leaS", Gv, M, XX, XX },
705 { "movD", Sw, Sv, XX, XX },
706 { "popU", stackEv, XX, XX, XX },
707 /* 90 */
708 { "xchgS", NOP_Fixup1, eAX_reg, NOP_Fixup2, eAX_reg, XX, XX },
709 { "xchgS", RMeCX, eAX, XX, XX },
710 { "xchgS", RMeDX, eAX, XX, XX },
711 { "xchgS", RMeBX, eAX, XX, XX },
712 { "xchgS", RMeSP, eAX, XX, XX },
713 { "xchgS", RMeBP, eAX, XX, XX },
714 { "xchgS", RMeSI, eAX, XX, XX },
715 { "xchgS", RMeDI, eAX, XX, XX },
716 /* 98 */
717 { "cW{t||t|}R", XX, XX, XX, XX },
718 { "cR{t||t|}O", XX, XX, XX, XX },
719 { "Jcall{T|}", Ap, XX, XX, XX },
720 { "(bad)", XX, XX, XX, XX }, /* fwait */
721 { "pushfT", XX, XX, XX, XX },
722 { "popfT", XX, XX, XX, XX },
723 { "sahf{|}", XX, XX, XX, XX },
724 { "lahf{|}", XX, XX, XX, XX },
725 /* a0 */
726 { "movB", AL, Ob, XX, XX },
727 { "movS", eAX, Ov, XX, XX },
728 { "movB", Ob, AL, XX, XX },
729 { "movS", Ov, eAX, XX, XX },
730 { "movs{b||b|}", Ybr, Xb, XX, XX },
731 { "movs{R||R|}", Yvr, Xv, XX, XX },
732 { "cmps{b||b|}", Xb, Yb, XX, XX },
733 { "cmps{R||R|}", Xv, Yv, XX, XX },
734 /* a8 */
735 { "testB", AL, Ib, XX, XX },
736 { "testS", eAX, Iv, XX, XX },
737 { "stosB", Ybr, AL, XX, XX },
738 { "stosS", Yvr, eAX, XX, XX },
739 { "lodsB", ALr, Xb, XX, XX },
740 { "lodsS", eAXr, Xv, XX, XX },
741 { "scasB", AL, Yb, XX, XX },
742 { "scasS", eAX, Yv, XX, XX },
743 /* b0 */
744 { "movB", RMAL, Ib, XX, XX },
745 { "movB", RMCL, Ib, XX, XX },
746 { "movB", RMDL, Ib, XX, XX },
747 { "movB", RMBL, Ib, XX, XX },
748 { "movB", RMAH, Ib, XX, XX },
749 { "movB", RMCH, Ib, XX, XX },
750 { "movB", RMDH, Ib, XX, XX },
751 { "movB", RMBH, Ib, XX, XX },
752 /* b8 */
753 { "movS", RMeAX, Iv64, XX, XX },
754 { "movS", RMeCX, Iv64, XX, XX },
755 { "movS", RMeDX, Iv64, XX, XX },
756 { "movS", RMeBX, Iv64, XX, XX },
757 { "movS", RMeSP, Iv64, XX, XX },
758 { "movS", RMeBP, Iv64, XX, XX },
759 { "movS", RMeSI, Iv64, XX, XX },
760 { "movS", RMeDI, Iv64, XX, XX },
761 /* c0 */
762 { GRP2b },
763 { GRP2S },
764 { "retT", Iw, XX, XX, XX },
765 { "retT", XX, XX, XX, XX },
766 { "les{S|}", Gv, Mp, XX, XX },
767 { "ldsS", Gv, Mp, XX, XX },
768 { GRP11_C6 },
769 { GRP11_C7 },
770 /* c8 */
771 { "enterT", Iw, Ib, XX, XX },
772 { "leaveT", XX, XX, XX, XX },
773 { "lretP", Iw, XX, XX, XX },
774 { "lretP", XX, XX, XX, XX },
775 { "int3", XX, XX, XX, XX },
776 { "int", Ib, XX, XX, XX },
777 { "into{|}", XX, XX, XX, XX },
778 { "iretP", XX, XX, XX, XX },
779 /* d0 */
780 { GRP2b_one },
781 { GRP2S_one },
782 { GRP2b_cl },
783 { GRP2S_cl },
784 { "aam{|}", sIb, XX, XX, XX },
785 { "aad{|}", sIb, XX, XX, XX },
786 { "(bad)", XX, XX, XX, XX },
787 { "xlat", DSBX, XX, XX, XX },
788 /* d8 */
789 { FLOAT },
790 { FLOAT },
791 { FLOAT },
792 { FLOAT },
793 { FLOAT },
794 { FLOAT },
795 { FLOAT },
796 { FLOAT },
797 /* e0 */
798 { "loopneFH", Jb, XX, loop_jcxz_flag, XX },
799 { "loopeFH", Jb, XX, loop_jcxz_flag, XX },
800 { "loopFH", Jb, XX, loop_jcxz_flag, XX },
801 { "jEcxzH", Jb, XX, loop_jcxz_flag, XX },
802 { "inB", AL, Ib, XX, XX },
803 { "inG", zAX, Ib, XX, XX },
804 { "outB", Ib, AL, XX, XX },
805 { "outG", Ib, zAX, XX, XX },
806 /* e8 */
807 { "callT", Jv, XX, XX, XX },
808 { "jmpT", Jv, XX, XX, XX },
809 { "Jjmp{T|}", Ap, XX, XX, XX },
810 { "jmp", Jb, XX, XX, XX },
811 { "inB", AL, indirDX, XX, XX },
812 { "inG", zAX, indirDX, XX, XX },
813 { "outB", indirDX, AL, XX, XX },
814 { "outG", indirDX, zAX, XX, XX },
815 /* f0 */
816 { "(bad)", XX, XX, XX, XX }, /* lock prefix */
817 { "icebp", XX, XX, XX, XX },
818 { "(bad)", XX, XX, XX, XX }, /* repne */
819 { "(bad)", XX, XX, XX, XX }, /* repz */
820 { "hlt", XX, XX, XX, XX },
821 { "cmc", XX, XX, XX, XX },
822 { GRP3b },
823 { GRP3S },
824 /* f8 */
825 { "clc", XX, XX, XX, XX },
826 { "stc", XX, XX, XX, XX },
827 { "cli", XX, XX, XX, XX },
828 { "sti", XX, XX, XX, XX },
829 { "cld", XX, XX, XX, XX },
830 { "std", XX, XX, XX, XX },
831 { GRP4 },
832 { GRP5 },
833 };
834
835 static const struct dis386 dis386_twobyte[] = {
836 /* 00 */
837 { GRP6 },
838 { GRP7 },
839 { "larS", Gv, Ew, XX, XX },
840 { "lslS", Gv, Ew, XX, XX },
841 { "(bad)", XX, XX, XX, XX },
842 { "syscall", XX, XX, XX, XX },
843 { "clts", XX, XX, XX, XX },
844 { "sysretP", XX, XX, XX, XX },
845 /* 08 */
846 { "invd", XX, XX, XX, XX },
847 { "wbinvd", XX, XX, XX, XX },
848 { "(bad)", XX, XX, XX, XX },
849 { "ud2a", XX, XX, XX, XX },
850 { "(bad)", XX, XX, XX, XX },
851 { GRPAMD },
852 { "femms", XX, XX, XX, XX },
853 { "", MX, EM, OPSUF, XX }, /* See OP_3DNowSuffix. */
854 /* 10 */
855 { PREGRP8 },
856 { PREGRP9 },
857 { PREGRP30 },
858 { "movlpX", EX, XM, SIMD_Fixup, 'h', XX },
859 { "unpcklpX", XM, EX, XX, XX },
860 { "unpckhpX", XM, EX, XX, XX },
861 { PREGRP31 },
862 { "movhpX", EX, XM, SIMD_Fixup, 'l', XX },
863 /* 18 */
864 { GRP16 },
865 { "(bad)", XX, XX, XX, XX },
866 { "(bad)", XX, XX, XX, XX },
867 { "(bad)", XX, XX, XX, XX },
868 { "(bad)", XX, XX, XX, XX },
869 { "(bad)", XX, XX, XX, XX },
870 { "(bad)", XX, XX, XX, XX },
871 { "nopQ", Ev, XX, XX, XX },
872 /* 20 */
873 { "movZ", Rm, Cm, XX, XX },
874 { "movZ", Rm, Dm, XX, XX },
875 { "movZ", Cm, Rm, XX, XX },
876 { "movZ", Dm, Rm, XX, XX },
877 { "movL", Rd, Td, XX, XX },
878 { "(bad)", XX, XX, XX, XX },
879 { "movL", Td, Rd, XX, XX },
880 { "(bad)", XX, XX, XX, XX },
881 /* 28 */
882 { "movapX", XM, EX, XX, XX },
883 { "movapX", EX, XM, XX, XX },
884 { PREGRP2 },
885 { PREGRP33 },
886 { PREGRP4 },
887 { PREGRP3 },
888 { "ucomisX", XM,EX, XX, XX },
889 { "comisX", XM,EX, XX, XX },
890 /* 30 */
891 { "wrmsr", XX, XX, XX, XX },
892 { "rdtsc", XX, XX, XX, XX },
893 { "rdmsr", XX, XX, XX, XX },
894 { "rdpmc", XX, XX, XX, XX },
895 { "sysenter", XX, XX, XX, XX },
896 { "sysexit", XX, XX, XX, XX },
897 { "(bad)", XX, XX, XX, XX },
898 { "(bad)", XX, XX, XX, XX },
899 /* 38 */
900 { THREE_BYTE_0 },
901 { "(bad)", XX, XX, XX, XX },
902 { THREE_BYTE_1 },
903 { "(bad)", XX, XX, XX, XX },
904 { "(bad)", XX, XX, XX, XX },
905 { "(bad)", XX, XX, XX, XX },
906 { "(bad)", XX, XX, XX, XX },
907 { "(bad)", XX, XX, XX, XX },
908 /* 40 */
909 { "cmovo", Gv, Ev, XX, XX },
910 { "cmovno", Gv, Ev, XX, XX },
911 { "cmovb", Gv, Ev, XX, XX },
912 { "cmovae", Gv, Ev, XX, XX },
913 { "cmove", Gv, Ev, XX, XX },
914 { "cmovne", Gv, Ev, XX, XX },
915 { "cmovbe", Gv, Ev, XX, XX },
916 { "cmova", Gv, Ev, XX, XX },
917 /* 48 */
918 { "cmovs", Gv, Ev, XX, XX },
919 { "cmovns", Gv, Ev, XX, XX },
920 { "cmovp", Gv, Ev, XX, XX },
921 { "cmovnp", Gv, Ev, XX, XX },
922 { "cmovl", Gv, Ev, XX, XX },
923 { "cmovge", Gv, Ev, XX, XX },
924 { "cmovle", Gv, Ev, XX, XX },
925 { "cmovg", Gv, Ev, XX, XX },
926 /* 50 */
927 { "movmskpX", Gdq, XS, XX, XX },
928 { PREGRP13 },
929 { PREGRP12 },
930 { PREGRP11 },
931 { "andpX", XM, EX, XX, XX },
932 { "andnpX", XM, EX, XX, XX },
933 { "orpX", XM, EX, XX, XX },
934 { "xorpX", XM, EX, XX, XX },
935 /* 58 */
936 { PREGRP0 },
937 { PREGRP10 },
938 { PREGRP17 },
939 { PREGRP16 },
940 { PREGRP14 },
941 { PREGRP7 },
942 { PREGRP5 },
943 { PREGRP6 },
944 /* 60 */
945 { "punpcklbw", MX, EM, XX, XX },
946 { "punpcklwd", MX, EM, XX, XX },
947 { "punpckldq", MX, EM, XX, XX },
948 { "packsswb", MX, EM, XX, XX },
949 { "pcmpgtb", MX, EM, XX, XX },
950 { "pcmpgtw", MX, EM, XX, XX },
951 { "pcmpgtd", MX, EM, XX, XX },
952 { "packuswb", MX, EM, XX, XX },
953 /* 68 */
954 { "punpckhbw", MX, EM, XX, XX },
955 { "punpckhwd", MX, EM, XX, XX },
956 { "punpckhdq", MX, EM, XX, XX },
957 { "packssdw", MX, EM, XX, XX },
958 { PREGRP26 },
959 { PREGRP24 },
960 { "movd", MX, Edq, XX, XX },
961 { PREGRP19 },
962 /* 70 */
963 { PREGRP22 },
964 { GRP12 },
965 { GRP13 },
966 { GRP14 },
967 { "pcmpeqb", MX, EM, XX, XX },
968 { "pcmpeqw", MX, EM, XX, XX },
969 { "pcmpeqd", MX, EM, XX, XX },
970 { "emms", XX, XX, XX, XX },
971 /* 78 */
972 { PREGRP34 },
973 { PREGRP35 },
974 { "(bad)", XX, XX, XX, XX },
975 { "(bad)", XX, XX, XX, XX },
976 { PREGRP28 },
977 { PREGRP29 },
978 { PREGRP23 },
979 { PREGRP20 },
980 /* 80 */
981 { "joH", Jv, XX, cond_jump_flag, XX },
982 { "jnoH", Jv, XX, cond_jump_flag, XX },
983 { "jbH", Jv, XX, cond_jump_flag, XX },
984 { "jaeH", Jv, XX, cond_jump_flag, XX },
985 { "jeH", Jv, XX, cond_jump_flag, XX },
986 { "jneH", Jv, XX, cond_jump_flag, XX },
987 { "jbeH", Jv, XX, cond_jump_flag, XX },
988 { "jaH", Jv, XX, cond_jump_flag, XX },
989 /* 88 */
990 { "jsH", Jv, XX, cond_jump_flag, XX },
991 { "jnsH", Jv, XX, cond_jump_flag, XX },
992 { "jpH", Jv, XX, cond_jump_flag, XX },
993 { "jnpH", Jv, XX, cond_jump_flag, XX },
994 { "jlH", Jv, XX, cond_jump_flag, XX },
995 { "jgeH", Jv, XX, cond_jump_flag, XX },
996 { "jleH", Jv, XX, cond_jump_flag, XX },
997 { "jgH", Jv, XX, cond_jump_flag, XX },
998 /* 90 */
999 { "seto", Eb, XX, XX, XX },
1000 { "setno", Eb, XX, XX, XX },
1001 { "setb", Eb, XX, XX, XX },
1002 { "setae", Eb, XX, XX, XX },
1003 { "sete", Eb, XX, XX, XX },
1004 { "setne", Eb, XX, XX, XX },
1005 { "setbe", Eb, XX, XX, XX },
1006 { "seta", Eb, XX, XX, XX },
1007 /* 98 */
1008 { "sets", Eb, XX, XX, XX },
1009 { "setns", Eb, XX, XX, XX },
1010 { "setp", Eb, XX, XX, XX },
1011 { "setnp", Eb, XX, XX, XX },
1012 { "setl", Eb, XX, XX, XX },
1013 { "setge", Eb, XX, XX, XX },
1014 { "setle", Eb, XX, XX, XX },
1015 { "setg", Eb, XX, XX, XX },
1016 /* a0 */
1017 { "pushT", fs, XX, XX, XX },
1018 { "popT", fs, XX, XX, XX },
1019 { "cpuid", XX, XX, XX, XX },
1020 { "btS", Ev, Gv, XX, XX },
1021 { "shldS", Ev, Gv, Ib, XX },
1022 { "shldS", Ev, Gv, CL, XX },
1023 { GRPPADLCK2 },
1024 { GRPPADLCK1 },
1025 /* a8 */
1026 { "pushT", gs, XX, XX, XX },
1027 { "popT", gs, XX, XX, XX },
1028 { "rsm", XX, XX, XX, XX },
1029 { "btsS", Ev, Gv, XX, XX },
1030 { "shrdS", Ev, Gv, Ib, XX },
1031 { "shrdS", Ev, Gv, CL, XX },
1032 { GRP15 },
1033 { "imulS", Gv, Ev, XX, XX },
1034 /* b0 */
1035 { "cmpxchgB", Eb, Gb, XX, XX },
1036 { "cmpxchgS", Ev, Gv, XX, XX },
1037 { "lssS", Gv, Mp, XX, XX },
1038 { "btrS", Ev, Gv, XX, XX },
1039 { "lfsS", Gv, Mp, XX, XX },
1040 { "lgsS", Gv, Mp, XX, XX },
1041 { "movz{bR|x|bR|x}", Gv, Eb, XX, XX },
1042 { "movz{wR|x|wR|x}", Gv, Ew, XX, XX }, /* yes, there really is movzww ! */
1043 /* b8 */
1044 { PREGRP37 },
1045 { "ud2b", XX, XX, XX, XX },
1046 { GRP8 },
1047 { "btcS", Ev, Gv, XX, XX },
1048 { "bsfS", Gv, Ev, XX, XX },
1049 { PREGRP36 },
1050 { "movs{bR|x|bR|x}", Gv, Eb, XX, XX },
1051 { "movs{wR|x|wR|x}", Gv, Ew, XX, XX }, /* yes, there really is movsww ! */
1052 /* c0 */
1053 { "xaddB", Eb, Gb, XX, XX },
1054 { "xaddS", Ev, Gv, XX, XX },
1055 { PREGRP1 },
1056 { "movntiS", Ev, Gv, XX, XX },
1057 { "pinsrw", MX, Edqw, Ib, XX },
1058 { "pextrw", Gdq, MS, Ib, XX },
1059 { "shufpX", XM, EX, Ib, XX },
1060 { GRP9 },
1061 /* c8 */
1062 { "bswap", RMeAX, XX, XX, XX },
1063 { "bswap", RMeCX, XX, XX, XX },
1064 { "bswap", RMeDX, XX, XX, XX },
1065 { "bswap", RMeBX, XX, XX, XX },
1066 { "bswap", RMeSP, XX, XX, XX },
1067 { "bswap", RMeBP, XX, XX, XX },
1068 { "bswap", RMeSI, XX, XX, XX },
1069 { "bswap", RMeDI, XX, XX, XX },
1070 /* d0 */
1071 { PREGRP27 },
1072 { "psrlw", MX, EM, XX, XX },
1073 { "psrld", MX, EM, XX, XX },
1074 { "psrlq", MX, EM, XX, XX },
1075 { "paddq", MX, EM, XX, XX },
1076 { "pmullw", MX, EM, XX, XX },
1077 { PREGRP21 },
1078 { "pmovmskb", Gdq, MS, XX, XX },
1079 /* d8 */
1080 { "psubusb", MX, EM, XX, XX },
1081 { "psubusw", MX, EM, XX, XX },
1082 { "pminub", MX, EM, XX, XX },
1083 { "pand", MX, EM, XX, XX },
1084 { "paddusb", MX, EM, XX, XX },
1085 { "paddusw", MX, EM, XX, XX },
1086 { "pmaxub", MX, EM, XX, XX },
1087 { "pandn", MX, EM, XX, XX },
1088 /* e0 */
1089 { "pavgb", MX, EM, XX, XX },
1090 { "psraw", MX, EM, XX, XX },
1091 { "psrad", MX, EM, XX, XX },
1092 { "pavgw", MX, EM, XX, XX },
1093 { "pmulhuw", MX, EM, XX, XX },
1094 { "pmulhw", MX, EM, XX, XX },
1095 { PREGRP15 },
1096 { PREGRP25 },
1097 /* e8 */
1098 { "psubsb", MX, EM, XX, XX },
1099 { "psubsw", MX, EM, XX, XX },
1100 { "pminsw", MX, EM, XX, XX },
1101 { "por", MX, EM, XX, XX },
1102 { "paddsb", MX, EM, XX, XX },
1103 { "paddsw", MX, EM, XX, XX },
1104 { "pmaxsw", MX, EM, XX, XX },
1105 { "pxor", MX, EM, XX, XX },
1106 /* f0 */
1107 { PREGRP32 },
1108 { "psllw", MX, EM, XX, XX },
1109 { "pslld", MX, EM, XX, XX },
1110 { "psllq", MX, EM, XX, XX },
1111 { "pmuludq", MX, EM, XX, XX },
1112 { "pmaddwd", MX, EM, XX, XX },
1113 { "psadbw", MX, EM, XX, XX },
1114 { PREGRP18 },
1115 /* f8 */
1116 { "psubb", MX, EM, XX, XX },
1117 { "psubw", MX, EM, XX, XX },
1118 { "psubd", MX, EM, XX, XX },
1119 { "psubq", MX, EM, XX, XX },
1120 { "paddb", MX, EM, XX, XX },
1121 { "paddw", MX, EM, XX, XX },
1122 { "paddd", MX, EM, XX, XX },
1123 { "(bad)", XX, XX, XX, XX }
1124 };
1125
1126 static const unsigned char onebyte_has_modrm[256] = {
1127 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1128 /* ------------------------------- */
1129 /* 00 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 00 */
1130 /* 10 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 10 */
1131 /* 20 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 20 */
1132 /* 30 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 30 */
1133 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 40 */
1134 /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 50 */
1135 /* 60 */ 0,0,1,1,0,0,0,0,0,1,0,1,0,0,0,0, /* 60 */
1136 /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 70 */
1137 /* 80 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 80 */
1138 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 90 */
1139 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* a0 */
1140 /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* b0 */
1141 /* c0 */ 1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,0, /* c0 */
1142 /* d0 */ 1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* d0 */
1143 /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* e0 */
1144 /* f0 */ 0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1 /* f0 */
1145 /* ------------------------------- */
1146 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1147 };
1148
1149 static const unsigned char twobyte_has_modrm[256] = {
1150 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1151 /* ------------------------------- */
1152 /* 00 */ 1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,1, /* 0f */
1153 /* 10 */ 1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,1, /* 1f */
1154 /* 20 */ 1,1,1,1,1,0,1,0,1,1,1,1,1,1,1,1, /* 2f */
1155 /* 30 */ 0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0, /* 3f */
1156 /* 40 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4f */
1157 /* 50 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 5f */
1158 /* 60 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 6f */
1159 /* 70 */ 1,1,1,1,1,1,1,0,1,1,0,0,1,1,1,1, /* 7f */
1160 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1161 /* 90 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 9f */
1162 /* a0 */ 0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1, /* af */
1163 /* b0 */ 1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1, /* bf */
1164 /* c0 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* cf */
1165 /* d0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* df */
1166 /* e0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ef */
1167 /* f0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0 /* ff */
1168 /* ------------------------------- */
1169 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1170 };
1171
1172 static const unsigned char twobyte_uses_DATA_prefix[256] = {
1173 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1174 /* ------------------------------- */
1175 /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1176 /* 10 */ 1,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0, /* 1f */
1177 /* 20 */ 0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0, /* 2f */
1178 /* 30 */ 0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0, /* 3f */
1179 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1180 /* 50 */ 0,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* 5f */
1181 /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1, /* 6f */
1182 /* 70 */ 1,0,0,0,0,0,0,0,1,1,0,0,1,1,1,1, /* 7f */
1183 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1184 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1185 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1186 /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1187 /* c0 */ 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1188 /* d0 */ 1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */
1189 /* e0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* ef */
1190 /* f0 */ 1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0 /* ff */
1191 /* ------------------------------- */
1192 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1193 };
1194
1195 static const unsigned char twobyte_uses_REPNZ_prefix[256] = {
1196 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1197 /* ------------------------------- */
1198 /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1199 /* 10 */ 1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
1200 /* 20 */ 0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0, /* 2f */
1201 /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1202 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1203 /* 50 */ 0,1,0,0,0,0,0,0,1,1,1,0,1,1,1,1, /* 5f */
1204 /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1205 /* 70 */ 1,0,0,0,0,0,0,0,1,1,0,0,1,1,0,0, /* 7f */
1206 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1207 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1208 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1209 /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1210 /* c0 */ 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1211 /* d0 */ 1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */
1212 /* e0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* ef */
1213 /* f0 */ 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1214 /* ------------------------------- */
1215 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1216 };
1217
1218 static const unsigned char twobyte_uses_REPZ_prefix[256] = {
1219 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1220 /* ------------------------------- */
1221 /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1222 /* 10 */ 1,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0, /* 1f */
1223 /* 20 */ 0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0, /* 2f */
1224 /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1225 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1226 /* 50 */ 0,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* 5f */
1227 /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1, /* 6f */
1228 /* 70 */ 1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1, /* 7f */
1229 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1230 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1231 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1232 /* b0 */ 0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0, /* bf */
1233 /* c0 */ 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1234 /* d0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */
1235 /* e0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* ef */
1236 /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1237 /* ------------------------------- */
1238 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1239 };
1240
1241 /* This is used to determine if opcode 0f 38 XX uses DATA prefix. */
1242 static const unsigned char threebyte_0x38_uses_DATA_prefix[256] = {
1243 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1244 /* ------------------------------- */
1245 /* 00 */ 1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0, /* 0f */
1246 /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,0, /* 1f */
1247 /* 20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 2f */
1248 /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1249 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1250 /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1251 /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1252 /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1253 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1254 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1255 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1256 /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1257 /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1258 /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1259 /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1260 /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1261 /* ------------------------------- */
1262 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1263 };
1264
1265 /* This is used to determine if opcode 0f 38 XX uses REPNZ prefix. */
1266 static const unsigned char threebyte_0x38_uses_REPNZ_prefix[256] = {
1267 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1268 /* ------------------------------- */
1269 /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1270 /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
1271 /* 20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 2f */
1272 /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1273 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1274 /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1275 /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1276 /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1277 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1278 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1279 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1280 /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1281 /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1282 /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1283 /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1284 /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1285 /* ------------------------------- */
1286 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1287 };
1288
1289 /* This is used to determine if opcode 0f 38 XX uses REPZ prefix. */
1290 static const unsigned char threebyte_0x38_uses_REPZ_prefix[256] = {
1291 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1292 /* ------------------------------- */
1293 /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1294 /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
1295 /* 20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 2f */
1296 /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1297 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1298 /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1299 /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1300 /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1301 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1302 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1303 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1304 /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1305 /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1306 /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1307 /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1308 /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1309 /* ------------------------------- */
1310 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1311 };
1312
1313 /* This is used to determine if opcode 0f 3a XX uses DATA prefix. */
1314 static const unsigned char threebyte_0x3a_uses_DATA_prefix[256] = {
1315 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1316 /* ------------------------------- */
1317 /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1, /* 0f */
1318 /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
1319 /* 20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 2f */
1320 /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1321 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1322 /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1323 /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1324 /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1325 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1326 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1327 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1328 /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1329 /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1330 /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1331 /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1332 /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1333 /* ------------------------------- */
1334 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1335 };
1336
1337 /* This is used to determine if opcode 0f 3a XX uses REPNZ prefix. */
1338 static const unsigned char threebyte_0x3a_uses_REPNZ_prefix[256] = {
1339 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1340 /* ------------------------------- */
1341 /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1342 /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
1343 /* 20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 2f */
1344 /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1345 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1346 /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1347 /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1348 /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1349 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1350 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1351 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1352 /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1353 /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1354 /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1355 /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1356 /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1357 /* ------------------------------- */
1358 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1359 };
1360
1361 /* This is used to determine if opcode 0f 3a XX uses REPZ prefix. */
1362 static const unsigned char threebyte_0x3a_uses_REPZ_prefix[256] = {
1363 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1364 /* ------------------------------- */
1365 /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1366 /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
1367 /* 20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 2f */
1368 /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1369 /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1370 /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1371 /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1372 /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1373 /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1374 /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1375 /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1376 /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1377 /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1378 /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1379 /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1380 /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1381 /* ------------------------------- */
1382 /* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
1383 };
1384
1385 static char obuf[100];
1386 static char *obufp;
1387 static char scratchbuf[100];
1388 static unsigned char *start_codep;
1389 static unsigned char *insn_codep;
1390 static unsigned char *codep;
1391 static disassemble_info *the_info;
1392 static int mod;
1393 static int rm;
1394 static int reg;
1395 static unsigned char need_modrm;
1396
1397 /* If we are accessing mod/rm/reg without need_modrm set, then the
1398 values are stale. Hitting this abort likely indicates that you
1399 need to update onebyte_has_modrm or twobyte_has_modrm. */
1400 #define MODRM_CHECK if (!need_modrm) abort ()
1401
1402 static const char **names64;
1403 static const char **names32;
1404 static const char **names16;
1405 static const char **names8;
1406 static const char **names8rex;
1407 static const char **names_seg;
1408 static const char **index16;
1409
1410 static const char *intel_names64[] = {
1411 "rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi",
1412 "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
1413 };
1414 static const char *intel_names32[] = {
1415 "eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi",
1416 "r8d", "r9d", "r10d", "r11d", "r12d", "r13d", "r14d", "r15d"
1417 };
1418 static const char *intel_names16[] = {
1419 "ax", "cx", "dx", "bx", "sp", "bp", "si", "di",
1420 "r8w", "r9w", "r10w", "r11w", "r12w", "r13w", "r14w", "r15w"
1421 };
1422 static const char *intel_names8[] = {
1423 "al", "cl", "dl", "bl", "ah", "ch", "dh", "bh",
1424 };
1425 static const char *intel_names8rex[] = {
1426 "al", "cl", "dl", "bl", "spl", "bpl", "sil", "dil",
1427 "r8b", "r9b", "r10b", "r11b", "r12b", "r13b", "r14b", "r15b"
1428 };
1429 static const char *intel_names_seg[] = {
1430 "es", "cs", "ss", "ds", "fs", "gs", "?", "?",
1431 };
1432 static const char *intel_index16[] = {
1433 "bx+si", "bx+di", "bp+si", "bp+di", "si", "di", "bp", "bx"
1434 };
1435
1436 static const char *att_names64[] = {
1437 "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
1438 "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
1439 };
1440 static const char *att_names32[] = {
1441 "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
1442 "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d"
1443 };
1444 static const char *att_names16[] = {
1445 "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
1446 "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w"
1447 };
1448 static const char *att_names8[] = {
1449 "%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh",
1450 };
1451 static const char *att_names8rex[] = {
1452 "%al", "%cl", "%dl", "%bl", "%spl", "%bpl", "%sil", "%dil",
1453 "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b"
1454 };
1455 static const char *att_names_seg[] = {
1456 "%es", "%cs", "%ss", "%ds", "%fs", "%gs", "%?", "%?",
1457 };
1458 static const char *att_index16[] = {
1459 "%bx,%si", "%bx,%di", "%bp,%si", "%bp,%di", "%si", "%di", "%bp", "%bx"
1460 };
1461
1462 static const struct dis386 grps[][8] = {
1463 /* GRP1b */
1464 {
1465 { "addA", Eb, Ib, XX, XX },
1466 { "orA", Eb, Ib, XX, XX },
1467 { "adcA", Eb, Ib, XX, XX },
1468 { "sbbA", Eb, Ib, XX, XX },
1469 { "andA", Eb, Ib, XX, XX },
1470 { "subA", Eb, Ib, XX, XX },
1471 { "xorA", Eb, Ib, XX, XX },
1472 { "cmpA", Eb, Ib, XX, XX }
1473 },
1474 /* GRP1S */
1475 {
1476 { "addQ", Ev, Iv, XX, XX },
1477 { "orQ", Ev, Iv, XX, XX },
1478 { "adcQ", Ev, Iv, XX, XX },
1479 { "sbbQ", Ev, Iv, XX, XX },
1480 { "andQ", Ev, Iv, XX, XX },
1481 { "subQ", Ev, Iv, XX, XX },
1482 { "xorQ", Ev, Iv, XX, XX },
1483 { "cmpQ", Ev, Iv, XX, XX }
1484 },
1485 /* GRP1Ss */
1486 {
1487 { "addQ", Ev, sIb, XX, XX },
1488 { "orQ", Ev, sIb, XX, XX },
1489 { "adcQ", Ev, sIb, XX, XX },
1490 { "sbbQ", Ev, sIb, XX, XX },
1491 { "andQ", Ev, sIb, XX, XX },
1492 { "subQ", Ev, sIb, XX, XX },
1493 { "xorQ", Ev, sIb, XX, XX },
1494 { "cmpQ", Ev, sIb, XX, XX }
1495 },
1496 /* GRP2b */
1497 {
1498 { "rolA", Eb, Ib, XX, XX },
1499 { "rorA", Eb, Ib, XX, XX },
1500 { "rclA", Eb, Ib, XX, XX },
1501 { "rcrA", Eb, Ib, XX, XX },
1502 { "shlA", Eb, Ib, XX, XX },
1503 { "shrA", Eb, Ib, XX, XX },
1504 { "(bad)", XX, XX, XX, XX },
1505 { "sarA", Eb, Ib, XX, XX },
1506 },
1507 /* GRP2S */
1508 {
1509 { "rolQ", Ev, Ib, XX, XX },
1510 { "rorQ", Ev, Ib, XX, XX },
1511 { "rclQ", Ev, Ib, XX, XX },
1512 { "rcrQ", Ev, Ib, XX, XX },
1513 { "shlQ", Ev, Ib, XX, XX },
1514 { "shrQ", Ev, Ib, XX, XX },
1515 { "(bad)", XX, XX, XX, XX },
1516 { "sarQ", Ev, Ib, XX, XX },
1517 },
1518 /* GRP2b_one */
1519 {
1520 { "rolA", Eb, I1, XX, XX },
1521 { "rorA", Eb, I1, XX, XX },
1522 { "rclA", Eb, I1, XX, XX },
1523 { "rcrA", Eb, I1, XX, XX },
1524 { "shlA", Eb, I1, XX, XX },
1525 { "shrA", Eb, I1, XX, XX },
1526 { "(bad)", XX, XX, XX, XX },
1527 { "sarA", Eb, I1, XX, XX },
1528 },
1529 /* GRP2S_one */
1530 {
1531 { "rolQ", Ev, I1, XX, XX },
1532 { "rorQ", Ev, I1, XX, XX },
1533 { "rclQ", Ev, I1, XX, XX },
1534 { "rcrQ", Ev, I1, XX, XX },
1535 { "shlQ", Ev, I1, XX, XX },
1536 { "shrQ", Ev, I1, XX, XX },
1537 { "(bad)", XX, XX, XX, XX },
1538 { "sarQ", Ev, I1, XX, XX },
1539 },
1540 /* GRP2b_cl */
1541 {
1542 { "rolA", Eb, CL, XX, XX },
1543 { "rorA", Eb, CL, XX, XX },
1544 { "rclA", Eb, CL, XX, XX },
1545 { "rcrA", Eb, CL, XX, XX },
1546 { "shlA", Eb, CL, XX, XX },
1547 { "shrA", Eb, CL, XX, XX },
1548 { "(bad)", XX, XX, XX, XX },
1549 { "sarA", Eb, CL, XX, XX },
1550 },
1551 /* GRP2S_cl */
1552 {
1553 { "rolQ", Ev, CL, XX, XX },
1554 { "rorQ", Ev, CL, XX, XX },
1555 { "rclQ", Ev, CL, XX, XX },
1556 { "rcrQ", Ev, CL, XX, XX },
1557 { "shlQ", Ev, CL, XX, XX },
1558 { "shrQ", Ev, CL, XX, XX },
1559 { "(bad)", XX, XX, XX, XX },
1560 { "sarQ", Ev, CL, XX, XX }
1561 },
1562 /* GRP3b */
1563 {
1564 { "testA", Eb, Ib, XX, XX },
1565 { "(bad)", Eb, XX, XX, XX },
1566 { "notA", Eb, XX, XX, XX },
1567 { "negA", Eb, XX, XX, XX },
1568 { "mulA", Eb, XX, XX, XX }, /* Don't print the implicit %al register, */
1569 { "imulA", Eb, XX, XX, XX }, /* to distinguish these opcodes from other */
1570 { "divA", Eb, XX, XX, XX }, /* mul/imul opcodes. Do the same for div */
1571 { "idivA", Eb, XX, XX, XX } /* and idiv for consistency. */
1572 },
1573 /* GRP3S */
1574 {
1575 { "testQ", Ev, Iv, XX, XX },
1576 { "(bad)", XX, XX, XX, XX },
1577 { "notQ", Ev, XX, XX, XX },
1578 { "negQ", Ev, XX, XX, XX },
1579 { "mulQ", Ev, XX, XX, XX }, /* Don't print the implicit register. */
1580 { "imulQ", Ev, XX, XX, XX },
1581 { "divQ", Ev, XX, XX, XX },
1582 { "idivQ", Ev, XX, XX, XX },
1583 },
1584 /* GRP4 */
1585 {
1586 { "incA", Eb, XX, XX, XX },
1587 { "decA", Eb, XX, XX, XX },
1588 { "(bad)", XX, XX, XX, XX },
1589 { "(bad)", XX, XX, XX, XX },
1590 { "(bad)", XX, XX, XX, XX },
1591 { "(bad)", XX, XX, XX, XX },
1592 { "(bad)", XX, XX, XX, XX },
1593 { "(bad)", XX, XX, XX, XX },
1594 },
1595 /* GRP5 */
1596 {
1597 { "incQ", Ev, XX, XX, XX },
1598 { "decQ", Ev, XX, XX, XX },
1599 { "callT", indirEv, XX, XX, XX },
1600 { "JcallT", indirEp, XX, XX, XX },
1601 { "jmpT", indirEv, XX, XX, XX },
1602 { "JjmpT", indirEp, XX, XX, XX },
1603 { "pushU", stackEv, XX, XX, XX },
1604 { "(bad)", XX, XX, XX, XX },
1605 },
1606 /* GRP6 */
1607 {
1608 { "sldtD", Sv, XX, XX, XX },
1609 { "strD", Sv, XX, XX, XX },
1610 { "lldt", Ew, XX, XX, XX },
1611 { "ltr", Ew, XX, XX, XX },
1612 { "verr", Ew, XX, XX, XX },
1613 { "verw", Ew, XX, XX, XX },
1614 { "(bad)", XX, XX, XX, XX },
1615 { "(bad)", XX, XX, XX, XX }
1616 },
1617 /* GRP7 */
1618 {
1619 { "sgdt{Q|IQ||}", VMX_Fixup, 0, XX, XX, XX },
1620 { "sidt{Q|IQ||}", PNI_Fixup, 0, XX, XX, XX },
1621 { "lgdt{Q|Q||}", M, XX, XX, XX },
1622 { "lidt{Q|Q||}", SVME_Fixup, 0, XX, XX, XX },
1623 { "smswD", Sv, XX, XX, XX },
1624 { "(bad)", XX, XX, XX, XX },
1625 { "lmsw", Ew, XX, XX, XX },
1626 { "invlpg", INVLPG_Fixup, w_mode, XX, XX, XX },
1627 },
1628 /* GRP8 */
1629 {
1630 { "(bad)", XX, XX, XX, XX },
1631 { "(bad)", XX, XX, XX, XX },
1632 { "(bad)", XX, XX, XX, XX },
1633 { "(bad)", XX, XX, XX, XX },
1634 { "btQ", Ev, Ib, XX, XX },
1635 { "btsQ", Ev, Ib, XX, XX },
1636 { "btrQ", Ev, Ib, XX, XX },
1637 { "btcQ", Ev, Ib, XX, XX },
1638 },
1639 /* GRP9 */
1640 {
1641 { "(bad)", XX, XX, XX, XX },
1642 { "cmpxchg8b", CMPXCHG8B_Fixup, q_mode, XX, XX, XX },
1643 { "(bad)", XX, XX, XX, XX },
1644 { "(bad)", XX, XX, XX, XX },
1645 { "(bad)", XX, XX, XX, XX },
1646 { "(bad)", XX, XX, XX, XX },
1647 { "", VM, XX, XX, XX }, /* See OP_VMX. */
1648 { "vmptrst", Mq, XX, XX, XX },
1649 },
1650 /* GRP11_C6 */
1651 {
1652 { "movA", Eb, Ib, XX, XX },
1653 { "(bad)", XX, XX, XX, XX },
1654 { "(bad)", XX, XX, XX, XX },
1655 { "(bad)", XX, XX, XX, XX },
1656 { "(bad)", XX, XX, XX, XX },
1657 { "(bad)", XX, XX, XX, XX },
1658 { "(bad)", XX, XX, XX, XX },
1659 { "(bad)", XX, XX, XX, XX },
1660 },
1661 /* GRP11_C7 */
1662 {
1663 { "movQ", Ev, Iv, XX, XX },
1664 { "(bad)", XX, XX, XX, XX },
1665 { "(bad)", XX, XX, XX, XX },
1666 { "(bad)", XX, XX, XX, XX },
1667 { "(bad)", XX, XX, XX, XX },
1668 { "(bad)", XX, XX, XX, XX },
1669 { "(bad)", XX, XX, XX, XX },
1670 { "(bad)", XX, XX, XX, XX },
1671 },
1672 /* GRP12 */
1673 {
1674 { "(bad)", XX, XX, XX, XX },
1675 { "(bad)", XX, XX, XX, XX },
1676 { "psrlw", MS, Ib, XX, XX },
1677 { "(bad)", XX, XX, XX, XX },
1678 { "psraw", MS, Ib, XX, XX },
1679 { "(bad)", XX, XX, XX, XX },
1680 { "psllw", MS, Ib, XX, XX },
1681 { "(bad)", XX, XX, XX, XX },
1682 },
1683 /* GRP13 */
1684 {
1685 { "(bad)", XX, XX, XX, XX },
1686 { "(bad)", XX, XX, XX, XX },
1687 { "psrld", MS, Ib, XX, XX },
1688 { "(bad)", XX, XX, XX, XX },
1689 { "psrad", MS, Ib, XX, XX },
1690 { "(bad)", XX, XX, XX, XX },
1691 { "pslld", MS, Ib, XX, XX },
1692 { "(bad)", XX, XX, XX, XX },
1693 },
1694 /* GRP14 */
1695 {
1696 { "(bad)", XX, XX, XX, XX },
1697 { "(bad)", XX, XX, XX, XX },
1698 { "psrlq", MS, Ib, XX, XX },
1699 { "psrldq", MS, Ib, XX, XX },
1700 { "(bad)", XX, XX, XX, XX },
1701 { "(bad)", XX, XX, XX, XX },
1702 { "psllq", MS, Ib, XX, XX },
1703 { "pslldq", MS, Ib, XX, XX },
1704 },
1705 /* GRP15 */
1706 {
1707 { "fxsave", Ev, XX, XX, XX },
1708 { "fxrstor", Ev, XX, XX, XX },
1709 { "ldmxcsr", Ev, XX, XX, XX },
1710 { "stmxcsr", Ev, XX, XX, XX },
1711 { "(bad)", XX, XX, XX, XX },
1712 { "lfence", OP_0fae, 0, XX, XX, XX },
1713 { "mfence", OP_0fae, 0, XX, XX, XX },
1714 { "clflush", OP_0fae, 0, XX, XX, XX },
1715 },
1716 /* GRP16 */
1717 {
1718 { "prefetchnta", Ev, XX, XX, XX },
1719 { "prefetcht0", Ev, XX, XX, XX },
1720 { "prefetcht1", Ev, XX, XX, XX },
1721 { "prefetcht2", Ev, XX, XX, XX },
1722 { "(bad)", XX, XX, XX, XX },
1723 { "(bad)", XX, XX, XX, XX },
1724 { "(bad)", XX, XX, XX, XX },
1725 { "(bad)", XX, XX, XX, XX },
1726 },
1727 /* GRPAMD */
1728 {
1729 { "prefetch", Eb, XX, XX, XX },
1730 { "prefetchw", Eb, XX, XX, XX },
1731 { "(bad)", XX, XX, XX, XX },
1732 { "(bad)", XX, XX, XX, XX },
1733 { "(bad)", XX, XX, XX, XX },
1734 { "(bad)", XX, XX, XX, XX },
1735 { "(bad)", XX, XX, XX, XX },
1736 { "(bad)", XX, XX, XX, XX },
1737 },
1738 /* GRPPADLCK1 */
1739 {
1740 { "xstore-rng", OP_0f07, 0, XX, XX, XX },
1741 { "xcrypt-ecb", OP_0f07, 0, XX, XX, XX },
1742 { "xcrypt-cbc", OP_0f07, 0, XX, XX, XX },
1743 { "xcrypt-ctr", OP_0f07, 0, XX, XX, XX },
1744 { "xcrypt-cfb", OP_0f07, 0, XX, XX, XX },
1745 { "xcrypt-ofb", OP_0f07, 0, XX, XX, XX },
1746 { "(bad)", OP_0f07, 0, XX, XX, XX },
1747 { "(bad)", OP_0f07, 0, XX, XX, XX },
1748 },
1749 /* GRPPADLCK2 */
1750 {
1751 { "montmul", OP_0f07, 0, XX, XX, XX },
1752 { "xsha1", OP_0f07, 0, XX, XX, XX },
1753 { "xsha256", OP_0f07, 0, XX, XX, XX },
1754 { "(bad)", OP_0f07, 0, XX, XX, XX },
1755 { "(bad)", OP_0f07, 0, XX, XX, XX },
1756 { "(bad)", OP_0f07, 0, XX, XX, XX },
1757 { "(bad)", OP_0f07, 0, XX, XX, XX },
1758 { "(bad)", OP_0f07, 0, XX, XX, XX },
1759 }
1760 };
1761
1762 static const struct dis386 prefix_user_table[][4] = {
1763 /* PREGRP0 */
1764 {
1765 { "addps", XM, EX, XX, XX },
1766 { "addss", XM, EX, XX, XX },
1767 { "addpd", XM, EX, XX, XX },
1768 { "addsd", XM, EX, XX, XX },
1769 },
1770 /* PREGRP1 */
1771 {
1772 { "", XM, EX, OPSIMD, XX }, /* See OP_SIMD_SUFFIX. */
1773 { "", XM, EX, OPSIMD, XX },
1774 { "", XM, EX, OPSIMD, XX },
1775 { "", XM, EX, OPSIMD, XX },
1776 },
1777 /* PREGRP2 */
1778 {
1779 { "cvtpi2ps", XM, EMC, XX, XX },
1780 { "cvtsi2ssY", XM, Ev, XX, XX },
1781 { "cvtpi2pd", XM, EMC, XX, XX },
1782 { "cvtsi2sdY", XM, Ev, XX, XX },
1783 },
1784 /* PREGRP3 */
1785 {
1786 { "cvtps2pi", MXC, EX, XX, XX },
1787 { "cvtss2siY", Gv, EX, XX, XX },
1788 { "cvtpd2pi", MXC, EX, XX, XX },
1789 { "cvtsd2siY", Gv, EX, XX, XX },
1790 },
1791 /* PREGRP4 */
1792 {
1793 { "cvttps2pi", MXC, EX, XX, XX },
1794 { "cvttss2siY", Gv, EX, XX, XX },
1795 { "cvttpd2pi", MXC, EX, XX, XX },
1796 { "cvttsd2siY", Gv, EX, XX, XX },
1797 },
1798 /* PREGRP5 */
1799 {
1800 { "divps", XM, EX, XX, XX },
1801 { "divss", XM, EX, XX, XX },
1802 { "divpd", XM, EX, XX, XX },
1803 { "divsd", XM, EX, XX, XX },
1804 },
1805 /* PREGRP6 */
1806 {
1807 { "maxps", XM, EX, XX, XX },
1808 { "maxss", XM, EX, XX, XX },
1809 { "maxpd", XM, EX, XX, XX },
1810 { "maxsd", XM, EX, XX, XX },
1811 },
1812 /* PREGRP7 */
1813 {
1814 { "minps", XM, EX, XX, XX },
1815 { "minss", XM, EX, XX, XX },
1816 { "minpd", XM, EX, XX, XX },
1817 { "minsd", XM, EX, XX, XX },
1818 },
1819 /* PREGRP8 */
1820 {
1821 { "movups", XM, EX, XX, XX },
1822 { "movss", XM, EX, XX, XX },
1823 { "movupd", XM, EX, XX, XX },
1824 { "movsd", XM, EX, XX, XX },
1825 },
1826 /* PREGRP9 */
1827 {
1828 { "movups", EX, XM, XX, XX },
1829 { "movss", EX, XM, XX, XX },
1830 { "movupd", EX, XM, XX, XX },
1831 { "movsd", EX, XM, XX, XX },
1832 },
1833 /* PREGRP10 */
1834 {
1835 { "mulps", XM, EX, XX, XX },
1836 { "mulss", XM, EX, XX, XX },
1837 { "mulpd", XM, EX, XX, XX },
1838 { "mulsd", XM, EX, XX, XX },
1839 },
1840 /* PREGRP11 */
1841 {
1842 { "rcpps", XM, EX, XX, XX },
1843 { "rcpss", XM, EX, XX, XX },
1844 { "(bad)", XM, EX, XX, XX },
1845 { "(bad)", XM, EX, XX, XX },
1846 },
1847 /* PREGRP12 */
1848 {
1849 { "rsqrtps", XM, EX, XX, XX },
1850 { "rsqrtss", XM, EX, XX, XX },
1851 { "(bad)", XM, EX, XX, XX },
1852 { "(bad)", XM, EX, XX, XX },
1853 },
1854 /* PREGRP13 */
1855 {
1856 { "sqrtps", XM, EX, XX, XX },
1857 { "sqrtss", XM, EX, XX, XX },
1858 { "sqrtpd", XM, EX, XX, XX },
1859 { "sqrtsd", XM, EX, XX, XX },
1860 },
1861 /* PREGRP14 */
1862 {
1863 { "subps", XM, EX, XX, XX },
1864 { "subss", XM, EX, XX, XX },
1865 { "subpd", XM, EX, XX, XX },
1866 { "subsd", XM, EX, XX, XX },
1867 },
1868 /* PREGRP15 */
1869 {
1870 { "(bad)", XM, EX, XX, XX },
1871 { "cvtdq2pd", XM, EX, XX, XX },
1872 { "cvttpd2dq", XM, EX, XX, XX },
1873 { "cvtpd2dq", XM, EX, XX, XX },
1874 },
1875 /* PREGRP16 */
1876 {
1877 { "cvtdq2ps", XM, EX, XX, XX },
1878 { "cvttps2dq",XM, EX, XX, XX },
1879 { "cvtps2dq",XM, EX, XX, XX },
1880 { "(bad)", XM, EX, XX, XX },
1881 },
1882 /* PREGRP17 */
1883 {
1884 { "cvtps2pd", XM, EX, XX, XX },
1885 { "cvtss2sd", XM, EX, XX, XX },
1886 { "cvtpd2ps", XM, EX, XX, XX },
1887 { "cvtsd2ss", XM, EX, XX, XX },
1888 },
1889 /* PREGRP18 */
1890 {
1891 { "maskmovq", MX, MS, XX, XX },
1892 { "(bad)", XM, EX, XX, XX },
1893 { "maskmovdqu", XM, XS, XX, XX },
1894 { "(bad)", XM, EX, XX, XX },
1895 },
1896 /* PREGRP19 */
1897 {
1898 { "movq", MX, EM, XX, XX },
1899 { "movdqu", XM, EX, XX, XX },
1900 { "movdqa", XM, EX, XX, XX },
1901 { "(bad)", XM, EX, XX, XX },
1902 },
1903 /* PREGRP20 */
1904 {
1905 { "movq", EM, MX, XX, XX },
1906 { "movdqu", EX, XM, XX, XX },
1907 { "movdqa", EX, XM, XX, XX },
1908 { "(bad)", EX, XM, XX, XX },
1909 },
1910 /* PREGRP21 */
1911 {
1912 { "(bad)", EX, XM, XX, XX },
1913 { "movq2dq", XM, MS, XX, XX },
1914 { "movq", EX, XM, XX, XX },
1915 { "movdq2q", MX, XS, XX, XX },
1916 },
1917 /* PREGRP22 */
1918 {
1919 { "pshufw", MX, EM, Ib, XX },
1920 { "pshufhw", XM, EX, Ib, XX },
1921 { "pshufd", XM, EX, Ib, XX },
1922 { "pshuflw", XM, EX, Ib, XX },
1923 },
1924 /* PREGRP23 */
1925 {
1926 { "movd", Edq, MX, XX, XX },
1927 { "movq", XM, EX, XX, XX },
1928 { "movd", Edq, XM, XX, XX },
1929 { "(bad)", Ed, XM, XX, XX },
1930 },
1931 /* PREGRP24 */
1932 {
1933 { "(bad)", MX, EX, XX, XX },
1934 { "(bad)", XM, EX, XX, XX },
1935 { "punpckhqdq", XM, EX, XX, XX },
1936 { "(bad)", XM, EX, XX, XX },
1937 },
1938 /* PREGRP25 */
1939 {
1940 { "movntq", EM, MX, XX, XX },
1941 { "(bad)", EM, XM, XX, XX },
1942 { "movntdq", EM, XM, XX, XX },
1943 { "(bad)", EM, XM, XX, XX },
1944 },
1945 /* PREGRP26 */
1946 {
1947 { "(bad)", MX, EX, XX, XX },
1948 { "(bad)", XM, EX, XX, XX },
1949 { "punpcklqdq", XM, EX, XX, XX },
1950 { "(bad)", XM, EX, XX, XX },
1951 },
1952 /* PREGRP27 */
1953 {
1954 { "(bad)", MX, EX, XX, XX },
1955 { "(bad)", XM, EX, XX, XX },
1956 { "addsubpd", XM, EX, XX, XX },
1957 { "addsubps", XM, EX, XX, XX },
1958 },
1959 /* PREGRP28 */
1960 {
1961 { "(bad)", MX, EX, XX, XX },
1962 { "(bad)", XM, EX, XX, XX },
1963 { "haddpd", XM, EX, XX, XX },
1964 { "haddps", XM, EX, XX, XX },
1965 },
1966 /* PREGRP29 */
1967 {
1968 { "(bad)", MX, EX, XX, XX },
1969 { "(bad)", XM, EX, XX, XX },
1970 { "hsubpd", XM, EX, XX, XX },
1971 { "hsubps", XM, EX, XX, XX },
1972 },
1973 /* PREGRP30 */
1974 {
1975 { "movlpX", XM, EX, SIMD_Fixup, 'h', XX }, /* really only 2 operands */
1976 { "movsldup", XM, EX, XX, XX },
1977 { "movlpd", XM, EX, XX, XX },
1978 { "movddup", XM, EX, XX, XX },
1979 },
1980 /* PREGRP31 */
1981 {
1982 { "movhpX", XM, EX, SIMD_Fixup, 'l', XX },
1983 { "movshdup", XM, EX, XX, XX },
1984 { "movhpd", XM, EX, XX, XX },
1985 { "(bad)", XM, EX, XX, XX },
1986 },
1987 /* PREGRP32 */
1988 {
1989 { "(bad)", XM, EX, XX, XX },
1990 { "(bad)", XM, EX, XX, XX },
1991 { "(bad)", XM, EX, XX, XX },
1992 { "lddqu", XM, M, XX, XX },
1993 },
1994 /* PREGRP33 */
1995 {
1996 {"movntps",Ev, XM, XX, XX },
1997 {"movntss",Ev, XM, XX, XX },
1998 {"movntpd",Ev, XM, XX, XX },
1999 {"movntsd",Ev, XM, XX, XX },
2000 },
2001
2002 /* PREGRP34 */
2003 {
2004 {"vmread", Em, Gm, XX, XX },
2005 {"(bad)", XX, XX, XX, XX },
2006 {"extrq", XS, Ib, Ib, XX },
2007 {"insertq",XM, XS, Ib, Ib },
2008 },
2009
2010 /* PREGRP35 */
2011 {
2012 {"vmwrite", Gm, Em, XX, XX },
2013 {"(bad)", XX, XX, XX, XX },
2014 {"extrq", XM, XS, XX, XX },
2015 {"insertq", XM, XS, XX, XX },
2016 },
2017
2018 /* PREGRP36 */
2019 {
2020 { "bsrS", Gv, Ev, XX, XX },
2021 { "lzcntS", Gv, Ev, XX, XX },
2022 { "bsrS", Gv, Ev, XX, XX },
2023 { "(bad)", XX, XX, XX, XX },
2024 },
2025
2026 /* PREGRP37 */
2027 {
2028 { "(bad)", XX, XX, XX, XX },
2029 { "popcntS",Gv, Ev, XX, XX },
2030 { "(bad)", XX, XX, XX, XX },
2031 { "(bad)", XX, XX, XX, XX },
2032 },
2033 };
2034
2035 static const struct dis386 x86_64_table[][2] = {
2036 {
2037 { "pusha{P|}", XX, XX, XX, XX },
2038 { "(bad)", XX, XX, XX, XX },
2039 },
2040 {
2041 { "popa{P|}", XX, XX, XX, XX },
2042 { "(bad)", XX, XX, XX, XX },
2043 },
2044 {
2045 { "bound{S|}", Gv, Ma, XX, XX },
2046 { "(bad)", XX, XX, XX, XX },
2047 },
2048 {
2049 { "arpl", Ew, Gw, XX, XX },
2050 { "movs{||lq|xd}", Gv, Ed, XX, XX },
2051 },
2052 };
2053
2054 static const struct dis386 three_byte_table[][256] = {
2055 /* THREE_BYTE_0 */
2056 {
2057 /* 00 */
2058 { "pshufb", MX, EM, XX, XX },
2059 { "phaddw", MX, EM, XX, XX },
2060 { "phaddd", MX, EM, XX, XX },
2061 { "phaddsw", MX, EM, XX, XX },
2062 { "pmaddubsw", MX, EM, XX, XX },
2063 { "phsubw", MX, EM, XX, XX },
2064 { "phsubd", MX, EM, XX, XX },
2065 { "phsubsw", MX, EM, XX, XX },
2066 /* 08 */
2067 { "psignb", MX, EM, XX, XX },
2068 { "psignw", MX, EM, XX, XX },
2069 { "psignd", MX, EM, XX, XX },
2070 { "pmulhrsw", MX, EM, XX, XX },
2071 { "(bad)", XX, XX, XX, XX },
2072 { "(bad)", XX, XX, XX, XX },
2073 { "(bad)", XX, XX, XX, XX },
2074 { "(bad)", XX, XX, XX, XX },
2075 /* 10 */
2076 { "(bad)", XX, XX, XX, XX },
2077 { "(bad)", XX, XX, XX, XX },
2078 { "(bad)", XX, XX, XX, XX },
2079 { "(bad)", XX, XX, XX, XX },
2080 { "(bad)", XX, XX, XX, XX },
2081 { "(bad)", XX, XX, XX, XX },
2082 { "(bad)", XX, XX, XX, XX },
2083 { "(bad)", XX, XX, XX, XX },
2084 /* 18 */
2085 { "(bad)", XX, XX, XX, XX },
2086 { "(bad)", XX, XX, XX, XX },
2087 { "(bad)", XX, XX, XX, XX },
2088 { "(bad)", XX, XX, XX, XX },
2089 { "pabsb", MX, EM, XX, XX },
2090 { "pabsw", MX, EM, XX, XX },
2091 { "pabsd", MX, EM, XX, XX },
2092 { "(bad)", XX, XX, XX, XX },
2093 /* 20 */
2094 { "(bad)", XX, XX, XX, XX },
2095 { "(bad)", XX, XX, XX, XX },
2096 { "(bad)", XX, XX, XX, XX },
2097 { "(bad)", XX, XX, XX, XX },
2098 { "(bad)", XX, XX, XX, XX },
2099 { "(bad)", XX, XX, XX, XX },
2100 { "(bad)", XX, XX, XX, XX },
2101 { "(bad)", XX, XX, XX, XX },
2102 /* 28 */
2103 { "(bad)", XX, XX, XX, XX },
2104 { "(bad)", XX, XX, XX, XX },
2105 { "(bad)", XX, XX, XX, XX },
2106 { "(bad)", XX, XX, XX, XX },
2107 { "(bad)", XX, XX, XX, XX },
2108 { "(bad)", XX, XX, XX, XX },
2109 { "(bad)", XX, XX, XX, XX },
2110 { "(bad)", XX, XX, XX, XX },
2111 /* 30 */
2112 { "(bad)", XX, XX, XX, XX },
2113 { "(bad)", XX, XX, XX, XX },
2114 { "(bad)", XX, XX, XX, XX },
2115 { "(bad)", XX, XX, XX, XX },
2116 { "(bad)", XX, XX, XX, XX },
2117 { "(bad)", XX, XX, XX, XX },
2118 { "(bad)", XX, XX, XX, XX },
2119 { "(bad)", XX, XX, XX, XX },
2120 /* 38 */
2121 { "(bad)", XX, XX, XX, XX },
2122 { "(bad)", XX, XX, XX, XX },
2123 { "(bad)", XX, XX, XX, XX },
2124 { "(bad)", XX, XX, XX, XX },
2125 { "(bad)", XX, XX, XX, XX },
2126 { "(bad)", XX, XX, XX, XX },
2127 { "(bad)", XX, XX, XX, XX },
2128 { "(bad)", XX, XX, XX, XX },
2129 /* 40 */
2130 { "(bad)", XX, XX, XX, XX },
2131 { "(bad)", XX, XX, XX, XX },
2132 { "(bad)", XX, XX, XX, XX },
2133 { "(bad)", XX, XX, XX, XX },
2134 { "(bad)", XX, XX, XX, XX },
2135 { "(bad)", XX, XX, XX, XX },
2136 { "(bad)", XX, XX, XX, XX },
2137 { "(bad)", XX, XX, XX, XX },
2138 /* 48 */
2139 { "(bad)", XX, XX, XX, XX },
2140 { "(bad)", XX, XX, XX, XX },
2141 { "(bad)", XX, XX, XX, XX },
2142 { "(bad)", XX, XX, XX, XX },
2143 { "(bad)", XX, XX, XX, XX },
2144 { "(bad)", XX, XX, XX, XX },
2145 { "(bad)", XX, XX, XX, XX },
2146 { "(bad)", XX, XX, XX, XX },
2147 /* 50 */
2148 { "(bad)", XX, XX, XX, XX },
2149 { "(bad)", XX, XX, XX, XX },
2150 { "(bad)", XX, XX, XX, XX },
2151 { "(bad)", XX, XX, XX, XX },
2152 { "(bad)", XX, XX, XX, XX },
2153 { "(bad)", XX, XX, XX, XX },
2154 { "(bad)", XX, XX, XX, XX },
2155 { "(bad)", XX, XX, XX, XX },
2156 /* 58 */
2157 { "(bad)", XX, XX, XX, XX },
2158 { "(bad)", XX, XX, XX, XX },
2159 { "(bad)", XX, XX, XX, XX },
2160 { "(bad)", XX, XX, XX, XX },
2161 { "(bad)", XX, XX, XX, XX },
2162 { "(bad)", XX, XX, XX, XX },
2163 { "(bad)", XX, XX, XX, XX },
2164 { "(bad)", XX, XX, XX, XX },
2165 /* 60 */
2166 { "(bad)", XX, XX, XX, XX },
2167 { "(bad)", XX, XX, XX, XX },
2168 { "(bad)", XX, XX, XX, XX },
2169 { "(bad)", XX, XX, XX, XX },
2170 { "(bad)", XX, XX, XX, XX },
2171 { "(bad)", XX, XX, XX, XX },
2172 { "(bad)", XX, XX, XX, XX },
2173 { "(bad)", XX, XX, XX, XX },
2174 /* 68 */
2175 { "(bad)", XX, XX, XX, XX },
2176 { "(bad)", XX, XX, XX, XX },
2177 { "(bad)", XX, XX, XX, XX },
2178 { "(bad)", XX, XX, XX, XX },
2179 { "(bad)", XX, XX, XX, XX },
2180 { "(bad)", XX, XX, XX, XX },
2181 { "(bad)", XX, XX, XX, XX },
2182 { "(bad)", XX, XX, XX, XX },
2183 /* 70 */
2184 { "(bad)", XX, XX, XX, XX },
2185 { "(bad)", XX, XX, XX, XX },
2186 { "(bad)", XX, XX, XX, XX },
2187 { "(bad)", XX, XX, XX, XX },
2188 { "(bad)", XX, XX, XX, XX },
2189 { "(bad)", XX, XX, XX, XX },
2190 { "(bad)", XX, XX, XX, XX },
2191 { "(bad)", XX, XX, XX, XX },
2192 /* 78 */
2193 { "(bad)", XX, XX, XX, XX },
2194 { "(bad)", XX, XX, XX, XX },
2195 { "(bad)", XX, XX, XX, XX },
2196 { "(bad)", XX, XX, XX, XX },
2197 { "(bad)", XX, XX, XX, XX },
2198 { "(bad)", XX, XX, XX, XX },
2199 { "(bad)", XX, XX, XX, XX },
2200 { "(bad)", XX, XX, XX, XX },
2201 /* 80 */
2202 { "(bad)", XX, XX, XX, XX },
2203 { "(bad)", XX, XX, XX, XX },
2204 { "(bad)", XX, XX, XX, XX },
2205 { "(bad)", XX, XX, XX, XX },
2206 { "(bad)", XX, XX, XX, XX },
2207 { "(bad)", XX, XX, XX, XX },
2208 { "(bad)", XX, XX, XX, XX },
2209 { "(bad)", XX, XX, XX, XX },
2210 /* 88 */
2211 { "(bad)", XX, XX, XX, XX },
2212 { "(bad)", XX, XX, XX, XX },
2213 { "(bad)", XX, XX, XX, XX },
2214 { "(bad)", XX, XX, XX, XX },
2215 { "(bad)", XX, XX, XX, XX },
2216 { "(bad)", XX, XX, XX, XX },
2217 { "(bad)", XX, XX, XX, XX },
2218 { "(bad)", XX, XX, XX, XX },
2219 /* 90 */
2220 { "(bad)", XX, XX, XX, XX },
2221 { "(bad)", XX, XX, XX, XX },
2222 { "(bad)", XX, XX, XX, XX },
2223 { "(bad)", XX, XX, XX, XX },
2224 { "(bad)", XX, XX, XX, XX },
2225 { "(bad)", XX, XX, XX, XX },
2226 { "(bad)", XX, XX, XX, XX },
2227 { "(bad)", XX, XX, XX, XX },
2228 /* 98 */
2229 { "(bad)", XX, XX, XX, XX },
2230 { "(bad)", XX, XX, XX, XX },
2231 { "(bad)", XX, XX, XX, XX },
2232 { "(bad)", XX, XX, XX, XX },
2233 { "(bad)", XX, XX, XX, XX },
2234 { "(bad)", XX, XX, XX, XX },
2235 { "(bad)", XX, XX, XX, XX },
2236 { "(bad)", XX, XX, XX, XX },
2237 /* a0 */
2238 { "(bad)", XX, XX, XX, XX },
2239 { "(bad)", XX, XX, XX, XX },
2240 { "(bad)", XX, XX, XX, XX },
2241 { "(bad)", XX, XX, XX, XX },
2242 { "(bad)", XX, XX, XX, XX },
2243 { "(bad)", XX, XX, XX, XX },
2244 { "(bad)", XX, XX, XX, XX },
2245 { "(bad)", XX, XX, XX, XX },
2246 /* a8 */
2247 { "(bad)", XX, XX, XX, XX },
2248 { "(bad)", XX, XX, XX, XX },
2249 { "(bad)", XX, XX, XX, XX },
2250 { "(bad)", XX, XX, XX, XX },
2251 { "(bad)", XX, XX, XX, XX },
2252 { "(bad)", XX, XX, XX, XX },
2253 { "(bad)", XX, XX, XX, XX },
2254 { "(bad)", XX, XX, XX, XX },
2255 /* b0 */
2256 { "(bad)", XX, XX, XX, XX },
2257 { "(bad)", XX, XX, XX, XX },
2258 { "(bad)", XX, XX, XX, XX },
2259 { "(bad)", XX, XX, XX, XX },
2260 { "(bad)", XX, XX, XX, XX },
2261 { "(bad)", XX, XX, XX, XX },
2262 { "(bad)", XX, XX, XX, XX },
2263 { "(bad)", XX, XX, XX, XX },
2264 /* b8 */
2265 { "(bad)", XX, XX, XX, XX },
2266 { "(bad)", XX, XX, XX, XX },
2267 { "(bad)", XX, XX, XX, XX },
2268 { "(bad)", XX, XX, XX, XX },
2269 { "(bad)", XX, XX, XX, XX },
2270 { "(bad)", XX, XX, XX, XX },
2271 { "(bad)", XX, XX, XX, XX },
2272 { "(bad)", XX, XX, XX, XX },
2273 /* c0 */
2274 { "(bad)", XX, XX, XX, XX },
2275 { "(bad)", XX, XX, XX, XX },
2276 { "(bad)", XX, XX, XX, XX },
2277 { "(bad)", XX, XX, XX, XX },
2278 { "(bad)", XX, XX, XX, XX },
2279 { "(bad)", XX, XX, XX, XX },
2280 { "(bad)", XX, XX, XX, XX },
2281 { "(bad)", XX, XX, XX, XX },
2282 /* c8 */
2283 { "(bad)", XX, XX, XX, XX },
2284 { "(bad)", XX, XX, XX, XX },
2285 { "(bad)", XX, XX, XX, XX },
2286 { "(bad)", XX, XX, XX, XX },
2287 { "(bad)", XX, XX, XX, XX },
2288 { "(bad)", XX, XX, XX, XX },
2289 { "(bad)", XX, XX, XX, XX },
2290 { "(bad)", XX, XX, XX, XX },
2291 /* d0 */
2292 { "(bad)", XX, XX, XX, XX },
2293 { "(bad)", XX, XX, XX, XX },
2294 { "(bad)", XX, XX, XX, XX },
2295 { "(bad)", XX, XX, XX, XX },
2296 { "(bad)", XX, XX, XX, XX },
2297 { "(bad)", XX, XX, XX, XX },
2298 { "(bad)", XX, XX, XX, XX },
2299 { "(bad)", XX, XX, XX, XX },
2300 /* d8 */
2301 { "(bad)", XX, XX, XX, XX },
2302 { "(bad)", XX, XX, XX, XX },
2303 { "(bad)", XX, XX, XX, XX },
2304 { "(bad)", XX, XX, XX, XX },
2305 { "(bad)", XX, XX, XX, XX },
2306 { "(bad)", XX, XX, XX, XX },
2307 { "(bad)", XX, XX, XX, XX },
2308 { "(bad)", XX, XX, XX, XX },
2309 /* e0 */
2310 { "(bad)", XX, XX, XX, XX },
2311 { "(bad)", XX, XX, XX, XX },
2312 { "(bad)", XX, XX, XX, XX },
2313 { "(bad)", XX, XX, XX, XX },
2314 { "(bad)", XX, XX, XX, XX },
2315 { "(bad)", XX, XX, XX, XX },
2316 { "(bad)", XX, XX, XX, XX },
2317 { "(bad)", XX, XX, XX, XX },
2318 /* e8 */
2319 { "(bad)", XX, XX, XX, XX },
2320 { "(bad)", XX, XX, XX, XX },
2321 { "(bad)", XX, XX, XX, XX },
2322 { "(bad)", XX, XX, XX, XX },
2323 { "(bad)", XX, XX, XX, XX },
2324 { "(bad)", XX, XX, XX, XX },
2325 { "(bad)", XX, XX, XX, XX },
2326 { "(bad)", XX, XX, XX, XX },
2327 /* f0 */
2328 { "(bad)", XX, XX, XX, XX },
2329 { "(bad)", XX, XX, XX, XX },
2330 { "(bad)", XX, XX, XX, XX },
2331 { "(bad)", XX, XX, XX, XX },
2332 { "(bad)", XX, XX, XX, XX },
2333 { "(bad)", XX, XX, XX, XX },
2334 { "(bad)", XX, XX, XX, XX },
2335 { "(bad)", XX, XX, XX, XX },
2336 /* f8 */
2337 { "(bad)", XX, XX, XX, XX },
2338 { "(bad)", XX, XX, XX, XX },
2339 { "(bad)", XX, XX, XX, XX },
2340 { "(bad)", XX, XX, XX, XX },
2341 { "(bad)", XX, XX, XX, XX },
2342 { "(bad)", XX, XX, XX, XX },
2343 { "(bad)", XX, XX, XX, XX },
2344 { "(bad)", XX, XX, XX, XX }
2345 },
2346 /* THREE_BYTE_1 */
2347 {
2348 /* 00 */
2349 { "(bad)", XX, XX, XX, XX },
2350 { "(bad)", XX, XX, XX, XX },
2351 { "(bad)", XX, XX, XX, XX },
2352 { "(bad)", XX, XX, XX, XX },
2353 { "(bad)", XX, XX, XX, XX },
2354 { "(bad)", XX, XX, XX, XX },
2355 { "(bad)", XX, XX, XX, XX },
2356 { "(bad)", XX, XX, XX, XX },
2357 /* 08 */
2358 { "(bad)", XX, XX, XX, XX },
2359 { "(bad)", XX, XX, XX, XX },
2360 { "(bad)", XX, XX, XX, XX },
2361 { "(bad)", XX, XX, XX, XX },
2362 { "(bad)", XX, XX, XX, XX },
2363 { "(bad)", XX, XX, XX, XX },
2364 { "(bad)", XX, XX, XX, XX },
2365 { "palignr", MX, EM, Ib, XX },
2366 /* 10 */
2367 { "(bad)", XX, XX, XX, XX },
2368 { "(bad)", XX, XX, XX, XX },
2369 { "(bad)", XX, XX, XX, XX },
2370 { "(bad)", XX, XX, XX, XX },
2371 { "(bad)", XX, XX, XX, XX },
2372 { "(bad)", XX, XX, XX, XX },
2373 { "(bad)", XX, XX, XX, XX },
2374 { "(bad)", XX, XX, XX, XX },
2375 /* 18 */
2376 { "(bad)", XX, XX, XX, XX },
2377 { "(bad)", XX, XX, XX, XX },
2378 { "(bad)", XX, XX, XX, XX },
2379 { "(bad)", XX, XX, XX, XX },
2380 { "(bad)", XX, XX, XX, XX },
2381 { "(bad)", XX, XX, XX, XX },
2382 { "(bad)", XX, XX, XX, XX },
2383 { "(bad)", XX, XX, XX, XX },
2384 /* 20 */
2385 { "(bad)", XX, XX, XX, XX },
2386 { "(bad)", XX, XX, XX, XX },
2387 { "(bad)", XX, XX, XX, XX },
2388 { "(bad)", XX, XX, XX, XX },
2389 { "(bad)", XX, XX, XX, XX },
2390 { "(bad)", XX, XX, XX, XX },
2391 { "(bad)", XX, XX, XX, XX },
2392 { "(bad)", XX, XX, XX, XX },
2393 /* 28 */
2394 { "(bad)", XX, XX, XX, XX },
2395 { "(bad)", XX, XX, XX, XX },
2396 { "(bad)", XX, XX, XX, XX },
2397 { "(bad)", XX, XX, XX, XX },
2398 { "(bad)", XX, XX, XX, XX },
2399 { "(bad)", XX, XX, XX, XX },
2400 { "(bad)", XX, XX, XX, XX },
2401 { "(bad)", XX, XX, XX, XX },
2402 /* 30 */
2403 { "(bad)", XX, XX, XX, XX },
2404 { "(bad)", XX, XX, XX, XX },
2405 { "(bad)", XX, XX, XX, XX },
2406 { "(bad)", XX, XX, XX, XX },
2407 { "(bad)", XX, XX, XX, XX },
2408 { "(bad)", XX, XX, XX, XX },
2409 { "(bad)", XX, XX, XX, XX },
2410 { "(bad)", XX, XX, XX, XX },
2411 /* 38 */
2412 { "(bad)", XX, XX, XX, XX },
2413 { "(bad)", XX, XX, XX, XX },
2414 { "(bad)", XX, XX, XX, XX },
2415 { "(bad)", XX, XX, XX, XX },
2416 { "(bad)", XX, XX, XX, XX },
2417 { "(bad)", XX, XX, XX, XX },
2418 { "(bad)", XX, XX, XX, XX },
2419 { "(bad)", XX, XX, XX, XX },
2420 /* 40 */
2421 { "(bad)", XX, XX, XX, XX },
2422 { "(bad)", XX, XX, XX, XX },
2423 { "(bad)", XX, XX, XX, XX },
2424 { "(bad)", XX, XX, XX, XX },
2425 { "(bad)", XX, XX, XX, XX },
2426 { "(bad)", XX, XX, XX, XX },
2427 { "(bad)", XX, XX, XX, XX },
2428 { "(bad)", XX, XX, XX, XX },
2429 /* 48 */
2430 { "(bad)", XX, XX, XX, XX },
2431 { "(bad)", XX, XX, XX, XX },
2432 { "(bad)", XX, XX, XX, XX },
2433 { "(bad)", XX, XX, XX, XX },
2434 { "(bad)", XX, XX, XX, XX },
2435 { "(bad)", XX, XX, XX, XX },
2436 { "(bad)", XX, XX, XX, XX },
2437 { "(bad)", XX, XX, XX, XX },
2438 /* 50 */
2439 { "(bad)", XX, XX, XX, XX },
2440 { "(bad)", XX, XX, XX, XX },
2441 { "(bad)", XX, XX, XX, XX },
2442 { "(bad)", XX, XX, XX, XX },
2443 { "(bad)", XX, XX, XX, XX },
2444 { "(bad)", XX, XX, XX, XX },
2445 { "(bad)", XX, XX, XX, XX },
2446 { "(bad)", XX, XX, XX, XX },
2447 /* 58 */
2448 { "(bad)", XX, XX, XX, XX },
2449 { "(bad)", XX, XX, XX, XX },
2450 { "(bad)", XX, XX, XX, XX },
2451 { "(bad)", XX, XX, XX, XX },
2452 { "(bad)", XX, XX, XX, XX },
2453 { "(bad)", XX, XX, XX, XX },
2454 { "(bad)", XX, XX, XX, XX },
2455 { "(bad)", XX, XX, XX, XX },
2456 /* 60 */
2457 { "(bad)", XX, XX, XX, XX },
2458 { "(bad)", XX, XX, XX, XX },
2459 { "(bad)", XX, XX, XX, XX },
2460 { "(bad)", XX, XX, XX, XX },
2461 { "(bad)", XX, XX, XX, XX },
2462 { "(bad)", XX, XX, XX, XX },
2463 { "(bad)", XX, XX, XX, XX },
2464 { "(bad)", XX, XX, XX, XX },
2465 /* 68 */
2466 { "(bad)", XX, XX, XX, XX },
2467 { "(bad)", XX, XX, XX, XX },
2468 { "(bad)", XX, XX, XX, XX },
2469 { "(bad)", XX, XX, XX, XX },
2470 { "(bad)", XX, XX, XX, XX },
2471 { "(bad)", XX, XX, XX, XX },
2472 { "(bad)", XX, XX, XX, XX },
2473 { "(bad)", XX, XX, XX, XX },
2474 /* 70 */
2475 { "(bad)", XX, XX, XX, XX },
2476 { "(bad)", XX, XX, XX, XX },
2477 { "(bad)", XX, XX, XX, XX },
2478 { "(bad)", XX, XX, XX, XX },
2479 { "(bad)", XX, XX, XX, XX },
2480 { "(bad)", XX, XX, XX, XX },
2481 { "(bad)", XX, XX, XX, XX },
2482 { "(bad)", XX, XX, XX, XX },
2483 /* 78 */
2484 { "(bad)", XX, XX, XX, XX },
2485 { "(bad)", XX, XX, XX, XX },
2486 { "(bad)", XX, XX, XX, XX },
2487 { "(bad)", XX, XX, XX, XX },
2488 { "(bad)", XX, XX, XX, XX },
2489 { "(bad)", XX, XX, XX, XX },
2490 { "(bad)", XX, XX, XX, XX },
2491 { "(bad)", XX, XX, XX, XX },
2492 /* 80 */
2493 { "(bad)", XX, XX, XX, XX },
2494 { "(bad)", XX, XX, XX, XX },
2495 { "(bad)", XX, XX, XX, XX },
2496 { "(bad)", XX, XX, XX, XX },
2497 { "(bad)", XX, XX, XX, XX },
2498 { "(bad)", XX, XX, XX, XX },
2499 { "(bad)", XX, XX, XX, XX },
2500 { "(bad)", XX, XX, XX, XX },
2501 /* 88 */
2502 { "(bad)", XX, XX, XX, XX },
2503 { "(bad)", XX, XX, XX, XX },
2504 { "(bad)", XX, XX, XX, XX },
2505 { "(bad)", XX, XX, XX, XX },
2506 { "(bad)", XX, XX, XX, XX },
2507 { "(bad)", XX, XX, XX, XX },
2508 { "(bad)", XX, XX, XX, XX },
2509 { "(bad)", XX, XX, XX, XX },
2510 /* 90 */
2511 { "(bad)", XX, XX, XX, XX },
2512 { "(bad)", XX, XX, XX, XX },
2513 { "(bad)", XX, XX, XX, XX },
2514 { "(bad)", XX, XX, XX, XX },
2515 { "(bad)", XX, XX, XX, XX },
2516 { "(bad)", XX, XX, XX, XX },
2517 { "(bad)", XX, XX, XX, XX },
2518 { "(bad)", XX, XX, XX, XX },
2519 /* 98 */
2520 { "(bad)", XX, XX, XX, XX },
2521 { "(bad)", XX, XX, XX, XX },
2522 { "(bad)", XX, XX, XX, XX },
2523 { "(bad)", XX, XX, XX, XX },
2524 { "(bad)", XX, XX, XX, XX },
2525 { "(bad)", XX, XX, XX, XX },
2526 { "(bad)", XX, XX, XX, XX },
2527 { "(bad)", XX, XX, XX, XX },
2528 /* a0 */
2529 { "(bad)", XX, XX, XX, XX },
2530 { "(bad)", XX, XX, XX, XX },
2531 { "(bad)", XX, XX, XX, XX },
2532 { "(bad)", XX, XX, XX, XX },
2533 { "(bad)", XX, XX, XX, XX },
2534 { "(bad)", XX, XX, XX, XX },
2535 { "(bad)", XX, XX, XX, XX },
2536 { "(bad)", XX, XX, XX, XX },
2537 /* a8 */
2538 { "(bad)", XX, XX, XX, XX },
2539 { "(bad)", XX, XX, XX, XX },
2540 { "(bad)", XX, XX, XX, XX },
2541 { "(bad)", XX, XX, XX, XX },
2542 { "(bad)", XX, XX, XX, XX },
2543 { "(bad)", XX, XX, XX, XX },
2544 { "(bad)", XX, XX, XX, XX },
2545 { "(bad)", XX, XX, XX, XX },
2546 /* b0 */
2547 { "(bad)", XX, XX, XX, XX },
2548 { "(bad)", XX, XX, XX, XX },
2549 { "(bad)", XX, XX, XX, XX },
2550 { "(bad)", XX, XX, XX, XX },
2551 { "(bad)", XX, XX, XX, XX },
2552 { "(bad)", XX, XX, XX, XX },
2553 { "(bad)", XX, XX, XX, XX },
2554 { "(bad)", XX, XX, XX, XX },
2555 /* b8 */
2556 { "(bad)", XX, XX, XX, XX },
2557 { "(bad)", XX, XX, XX, XX },
2558 { "(bad)", XX, XX, XX, XX },
2559 { "(bad)", XX, XX, XX, XX },
2560 { "(bad)", XX, XX, XX, XX },
2561 { "(bad)", XX, XX, XX, XX },
2562 { "(bad)", XX, XX, XX, XX },
2563 { "(bad)", XX, XX, XX, XX },
2564 /* c0 */
2565 { "(bad)", XX, XX, XX, XX },
2566 { "(bad)", XX, XX, XX, XX },
2567 { "(bad)", XX, XX, XX, XX },
2568 { "(bad)", XX, XX, XX, XX },
2569 { "(bad)", XX, XX, XX, XX },
2570 { "(bad)", XX, XX, XX, XX },
2571 { "(bad)", XX, XX, XX, XX },
2572 { "(bad)", XX, XX, XX, XX },
2573 /* c8 */
2574 { "(bad)", XX, XX, XX, XX },
2575 { "(bad)", XX, XX, XX, XX },
2576 { "(bad)", XX, XX, XX, XX },
2577 { "(bad)", XX, XX, XX, XX },
2578 { "(bad)", XX, XX, XX, XX },
2579 { "(bad)", XX, XX, XX, XX },
2580 { "(bad)", XX, XX, XX, XX },
2581 { "(bad)", XX, XX, XX, XX },
2582 /* d0 */
2583 { "(bad)", XX, XX, XX, XX },
2584 { "(bad)", XX, XX, XX, XX },
2585 { "(bad)", XX, XX, XX, XX },
2586 { "(bad)", XX, XX, XX, XX },
2587 { "(bad)", XX, XX, XX, XX },
2588 { "(bad)", XX, XX, XX, XX },
2589 { "(bad)", XX, XX, XX, XX },
2590 { "(bad)", XX, XX, XX, XX },
2591 /* d8 */
2592 { "(bad)", XX, XX, XX, XX },
2593 { "(bad)", XX, XX, XX, XX },
2594 { "(bad)", XX, XX, XX, XX },
2595 { "(bad)", XX, XX, XX, XX },
2596 { "(bad)", XX, XX, XX, XX },
2597 { "(bad)", XX, XX, XX, XX },
2598 { "(bad)", XX, XX, XX, XX },
2599 { "(bad)", XX, XX, XX, XX },
2600 /* e0 */
2601 { "(bad)", XX, XX, XX, XX },
2602 { "(bad)", XX, XX, XX, XX },
2603 { "(bad)", XX, XX, XX, XX },
2604 { "(bad)", XX, XX, XX, XX },
2605 { "(bad)", XX, XX, XX, XX },
2606 { "(bad)", XX, XX, XX, XX },
2607 { "(bad)", XX, XX, XX, XX },
2608 { "(bad)", XX, XX, XX, XX },
2609 /* e8 */
2610 { "(bad)", XX, XX, XX, XX },
2611 { "(bad)", XX, XX, XX, XX },
2612 { "(bad)", XX, XX, XX, XX },
2613 { "(bad)", XX, XX, XX, XX },
2614 { "(bad)", XX, XX, XX, XX },
2615 { "(bad)", XX, XX, XX, XX },
2616 { "(bad)", XX, XX, XX, XX },
2617 { "(bad)", XX, XX, XX, XX },
2618 /* f0 */
2619 { "(bad)", XX, XX, XX, XX },
2620 { "(bad)", XX, XX, XX, XX },
2621 { "(bad)", XX, XX, XX, XX },
2622 { "(bad)", XX, XX, XX, XX },
2623 { "(bad)", XX, XX, XX, XX },
2624 { "(bad)", XX, XX, XX, XX },
2625 { "(bad)", XX, XX, XX, XX },
2626 { "(bad)", XX, XX, XX, XX },
2627 /* f8 */
2628 { "(bad)", XX, XX, XX, XX },
2629 { "(bad)", XX, XX, XX, XX },
2630 { "(bad)", XX, XX, XX, XX },
2631 { "(bad)", XX, XX, XX, XX },
2632 { "(bad)", XX, XX, XX, XX },
2633 { "(bad)", XX, XX, XX, XX },
2634 { "(bad)", XX, XX, XX, XX },
2635 { "(bad)", XX, XX, XX, XX }
2636 },
2637 };
2638
2639 #define INTERNAL_DISASSEMBLER_ERROR _("<internal disassembler error>")
2640
2641 static void
2642 ckprefix (void)
2643 {
2644 int newrex;
2645 rex = 0;
2646 prefixes = 0;
2647 used_prefixes = 0;
2648 rex_used = 0;
2649 while (1)
2650 {
2651 FETCH_DATA (the_info, codep + 1);
2652 newrex = 0;
2653 switch (*codep)
2654 {
2655 /* REX prefixes family. */
2656 case 0x40:
2657 case 0x41:
2658 case 0x42:
2659 case 0x43:
2660 case 0x44:
2661 case 0x45:
2662 case 0x46:
2663 case 0x47:
2664 case 0x48:
2665 case 0x49:
2666 case 0x4a:
2667 case 0x4b:
2668 case 0x4c:
2669 case 0x4d:
2670 case 0x4e:
2671 case 0x4f:
2672 if (address_mode == mode_64bit)
2673 newrex = *codep;
2674 else
2675 return;
2676 break;
2677 case 0xf3:
2678 prefixes |= PREFIX_REPZ;
2679 break;
2680 case 0xf2:
2681 prefixes |= PREFIX_REPNZ;
2682 break;
2683 case 0xf0:
2684 prefixes |= PREFIX_LOCK;
2685 break;
2686 case 0x2e:
2687 prefixes |= PREFIX_CS;
2688 break;
2689 case 0x36:
2690 prefixes |= PREFIX_SS;
2691 break;
2692 case 0x3e:
2693 prefixes |= PREFIX_DS;
2694 break;
2695 case 0x26:
2696 prefixes |= PREFIX_ES;
2697 break;
2698 case 0x64:
2699 prefixes |= PREFIX_FS;
2700 break;
2701 case 0x65:
2702 prefixes |= PREFIX_GS;
2703 break;
2704 case 0x66:
2705 prefixes |= PREFIX_DATA;
2706 break;
2707 case 0x67:
2708 prefixes |= PREFIX_ADDR;
2709 break;
2710 case FWAIT_OPCODE:
2711 /* fwait is really an instruction. If there are prefixes
2712 before the fwait, they belong to the fwait, *not* to the
2713 following instruction. */
2714 if (prefixes || rex)
2715 {
2716 prefixes |= PREFIX_FWAIT;
2717 codep++;
2718 return;
2719 }
2720 prefixes = PREFIX_FWAIT;
2721 break;
2722 default:
2723 return;
2724 }
2725 /* Rex is ignored when followed by another prefix. */
2726 if (rex)
2727 {
2728 rex_used = rex;
2729 return;
2730 }
2731 rex = newrex;
2732 codep++;
2733 }
2734 }
2735
2736 /* Return the name of the prefix byte PREF, or NULL if PREF is not a
2737 prefix byte. */
2738
2739 static const char *
2740 prefix_name (int pref, int sizeflag)
2741 {
2742 switch (pref)
2743 {
2744 /* REX prefixes family. */
2745 case 0x40:
2746 return "rex";
2747 case 0x41:
2748 return "rexZ";
2749 case 0x42:
2750 return "rexY";
2751 case 0x43:
2752 return "rexYZ";
2753 case 0x44:
2754 return "rexX";
2755 case 0x45:
2756 return "rexXZ";
2757 case 0x46:
2758 return "rexXY";
2759 case 0x47:
2760 return "rexXYZ";
2761 case 0x48:
2762 return "rex64";
2763 case 0x49:
2764 return "rex64Z";
2765 case 0x4a:
2766 return "rex64Y";
2767 case 0x4b:
2768 return "rex64YZ";
2769 case 0x4c:
2770 return "rex64X";
2771 case 0x4d:
2772 return "rex64XZ";
2773 case 0x4e:
2774 return "rex64XY";
2775 case 0x4f:
2776 return "rex64XYZ";
2777 case 0xf3:
2778 return "repz";
2779 case 0xf2:
2780 return "repnz";
2781 case 0xf0:
2782 return "lock";
2783 case 0x2e:
2784 return "cs";
2785 case 0x36:
2786 return "ss";
2787 case 0x3e:
2788 return "ds";
2789 case 0x26:
2790 return "es";
2791 case 0x64:
2792 return "fs";
2793 case 0x65:
2794 return "gs";
2795 case 0x66:
2796 return (sizeflag & DFLAG) ? "data16" : "data32";
2797 case 0x67:
2798 if (address_mode == mode_64bit)
2799 return (sizeflag & AFLAG) ? "addr32" : "addr64";
2800 else
2801 return (sizeflag & AFLAG) ? "addr16" : "addr32";
2802 case FWAIT_OPCODE:
2803 return "fwait";
2804 default:
2805 return NULL;
2806 }
2807 }
2808
2809 static char op1out[100], op2out[100], op3out[100], op4out[100];
2810 static int op_ad, op_index[4];
2811 static int two_source_ops;
2812 static bfd_vma op_address[4];
2813 static bfd_vma op_riprel[4];
2814 static bfd_vma start_pc;
2815
2816 /*
2817 * On the 386's of 1988, the maximum length of an instruction is 15 bytes.
2818 * (see topic "Redundant prefixes" in the "Differences from 8086"
2819 * section of the "Virtual 8086 Mode" chapter.)
2820 * 'pc' should be the address of this instruction, it will
2821 * be used to print the target address if this is a relative jump or call
2822 * The function returns the length of this instruction in bytes.
2823 */
2824
2825 static char intel_syntax;
2826 static char open_char;
2827 static char close_char;
2828 static char separator_char;
2829 static char scale_char;
2830
2831 /* Here for backwards compatibility. When gdb stops using
2832 print_insn_i386_att and print_insn_i386_intel these functions can
2833 disappear, and print_insn_i386 be merged into print_insn. */
2834 int
2835 print_insn_i386_att (bfd_vma pc, disassemble_info *info)
2836 {
2837 intel_syntax = 0;
2838
2839 return print_insn (pc, info);
2840 }
2841
2842 int
2843 print_insn_i386_intel (bfd_vma pc, disassemble_info *info)
2844 {
2845 intel_syntax = 1;
2846
2847 return print_insn (pc, info);
2848 }
2849
2850 int
2851 print_insn_i386 (bfd_vma pc, disassemble_info *info)
2852 {
2853 intel_syntax = -1;
2854
2855 return print_insn (pc, info);
2856 }
2857
2858 static int
2859 print_insn (bfd_vma pc, disassemble_info *info)
2860 {
2861 const struct dis386 *dp;
2862 int i;
2863 char *first, *second, *third, *fourth;
2864 int needcomma;
2865 unsigned char uses_DATA_prefix, uses_LOCK_prefix;
2866 unsigned char uses_REPNZ_prefix, uses_REPZ_prefix;
2867 int sizeflag;
2868 const char *p;
2869 struct dis_private priv;
2870 unsigned char op;
2871
2872 if (info->mach == bfd_mach_x86_64_intel_syntax
2873 || info->mach == bfd_mach_x86_64)
2874 address_mode = mode_64bit;
2875 else
2876 address_mode = mode_32bit;
2877
2878 if (intel_syntax == (char) -1)
2879 intel_syntax = (info->mach == bfd_mach_i386_i386_intel_syntax
2880 || info->mach == bfd_mach_x86_64_intel_syntax);
2881
2882 if (info->mach == bfd_mach_i386_i386
2883 || info->mach == bfd_mach_x86_64
2884 || info->mach == bfd_mach_i386_i386_intel_syntax
2885 || info->mach == bfd_mach_x86_64_intel_syntax)
2886 priv.orig_sizeflag = AFLAG | DFLAG;
2887 else if (info->mach == bfd_mach_i386_i8086)
2888 priv.orig_sizeflag = 0;
2889 else
2890 abort ();
2891
2892 for (p = info->disassembler_options; p != NULL; )
2893 {
2894 if (CONST_STRNEQ (p, "x86-64"))
2895 {
2896 address_mode = mode_64bit;
2897 priv.orig_sizeflag = AFLAG | DFLAG;
2898 }
2899 else if (CONST_STRNEQ (p, "i386"))
2900 {
2901 address_mode = mode_32bit;
2902 priv.orig_sizeflag = AFLAG | DFLAG;
2903 }
2904 else if (CONST_STRNEQ (p, "i8086"))
2905 {
2906 address_mode = mode_16bit;
2907 priv.orig_sizeflag = 0;
2908 }
2909 else if (CONST_STRNEQ (p, "intel"))
2910 {
2911 intel_syntax = 1;
2912 }
2913 else if (CONST_STRNEQ (p, "att"))
2914 {
2915 intel_syntax = 0;
2916 }
2917 else if (CONST_STRNEQ (p, "addr"))
2918 {
2919 if (p[4] == '1' && p[5] == '6')
2920 priv.orig_sizeflag &= ~AFLAG;
2921 else if (p[4] == '3' && p[5] == '2')
2922 priv.orig_sizeflag |= AFLAG;
2923 }
2924 else if (CONST_STRNEQ (p, "data"))
2925 {
2926 if (p[4] == '1' && p[5] == '6')
2927 priv.orig_sizeflag &= ~DFLAG;
2928 else if (p[4] == '3' && p[5] == '2')
2929 priv.orig_sizeflag |= DFLAG;
2930 }
2931 else if (CONST_STRNEQ (p, "suffix"))
2932 priv.orig_sizeflag |= SUFFIX_ALWAYS;
2933
2934 p = strchr (p, ',');
2935 if (p != NULL)
2936 p++;
2937 }
2938
2939 if (intel_syntax)
2940 {
2941 names64 = intel_names64;
2942 names32 = intel_names32;
2943 names16 = intel_names16;
2944 names8 = intel_names8;
2945 names8rex = intel_names8rex;
2946 names_seg = intel_names_seg;
2947 index16 = intel_index16;
2948 open_char = '[';
2949 close_char = ']';
2950 separator_char = '+';
2951 scale_char = '*';
2952 }
2953 else
2954 {
2955 names64 = att_names64;
2956 names32 = att_names32;
2957 names16 = att_names16;
2958 names8 = att_names8;
2959 names8rex = att_names8rex;
2960 names_seg = att_names_seg;
2961 index16 = att_index16;
2962 open_char = '(';
2963 close_char = ')';
2964 separator_char = ',';
2965 scale_char = ',';
2966 }
2967
2968 /* The output looks better if we put 7 bytes on a line, since that
2969 puts most long word instructions on a single line. */
2970 info->bytes_per_line = 7;
2971
2972 info->private_data = &priv;
2973 priv.max_fetched = priv.the_buffer;
2974 priv.insn_start = pc;
2975
2976 obuf[0] = 0;
2977 op1out[0] = 0;
2978 op2out[0] = 0;
2979 op3out[0] = 0;
2980 op4out[0] = 0;
2981
2982 op_index[0] = op_index[1] = op_index[2] = op_index[3] = -1;
2983
2984 the_info = info;
2985 start_pc = pc;
2986 start_codep = priv.the_buffer;
2987 codep = priv.the_buffer;
2988
2989 if (setjmp (priv.bailout) != 0)
2990 {
2991 const char *name;
2992
2993 /* Getting here means we tried for data but didn't get it. That
2994 means we have an incomplete instruction of some sort. Just
2995 print the first byte as a prefix or a .byte pseudo-op. */
2996 if (codep > priv.the_buffer)
2997 {
2998 name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag);
2999 if (name != NULL)
3000 (*info->fprintf_func) (info->stream, "%s", name);
3001 else
3002 {
3003 /* Just print the first byte as a .byte instruction. */
3004 (*info->fprintf_func) (info->stream, ".byte 0x%x",
3005 (unsigned int) priv.the_buffer[0]);
3006 }
3007
3008 return 1;
3009 }
3010
3011 return -1;
3012 }
3013
3014 obufp = obuf;
3015 ckprefix ();
3016
3017 insn_codep = codep;
3018 sizeflag = priv.orig_sizeflag;
3019
3020 FETCH_DATA (info, codep + 1);
3021 two_source_ops = (*codep == 0x62) || (*codep == 0xc8);
3022
3023 if (((prefixes & PREFIX_FWAIT)
3024 && ((*codep < 0xd8) || (*codep > 0xdf)))
3025 || (rex && rex_used))
3026 {
3027 const char *name;
3028
3029 /* fwait not followed by floating point instruction, or rex followed
3030 by other prefixes. Print the first prefix. */
3031 name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag);
3032 if (name == NULL)
3033 name = INTERNAL_DISASSEMBLER_ERROR;
3034 (*info->fprintf_func) (info->stream, "%s", name);
3035 return 1;
3036 }
3037
3038 op = 0;
3039 if (*codep == 0x0f)
3040 {
3041 unsigned char threebyte;
3042 FETCH_DATA (info, codep + 2);
3043 threebyte = *++codep;
3044 dp = &dis386_twobyte[threebyte];
3045 need_modrm = twobyte_has_modrm[*codep];
3046 uses_DATA_prefix = twobyte_uses_DATA_prefix[*codep];
3047 uses_REPNZ_prefix = twobyte_uses_REPNZ_prefix[*codep];
3048 uses_REPZ_prefix = twobyte_uses_REPZ_prefix[*codep];
3049 uses_LOCK_prefix = (*codep & ~0x02) == 0x20;
3050 codep++;
3051 if (dp->name == NULL && dp->bytemode1 == IS_3BYTE_OPCODE)
3052 {
3053 FETCH_DATA (info, codep + 2);
3054 op = *codep++;
3055 switch (threebyte)
3056 {
3057 case 0x38:
3058 uses_DATA_prefix = threebyte_0x38_uses_DATA_prefix[op];
3059 uses_REPNZ_prefix = threebyte_0x38_uses_REPNZ_prefix[op];
3060 uses_REPZ_prefix = threebyte_0x38_uses_REPZ_prefix[op];
3061 break;
3062 case 0x3a:
3063 uses_DATA_prefix = threebyte_0x3a_uses_DATA_prefix[op];
3064 uses_REPNZ_prefix = threebyte_0x3a_uses_REPNZ_prefix[op];
3065 uses_REPZ_prefix = threebyte_0x3a_uses_REPZ_prefix[op];
3066 break;
3067 default:
3068 break;
3069 }
3070 }
3071 }
3072 else
3073 {
3074 dp = &dis386[*codep];
3075 need_modrm = onebyte_has_modrm[*codep];
3076 uses_DATA_prefix = 0;
3077 uses_REPNZ_prefix = 0;
3078 uses_REPZ_prefix = 0;
3079 uses_LOCK_prefix = 0;
3080 codep++;
3081 }
3082
3083 if (!uses_REPZ_prefix && (prefixes & PREFIX_REPZ))
3084 {
3085 oappend ("repz ");
3086 used_prefixes |= PREFIX_REPZ;
3087 }
3088 if (!uses_REPNZ_prefix && (prefixes & PREFIX_REPNZ))
3089 {
3090 oappend ("repnz ");
3091 used_prefixes |= PREFIX_REPNZ;
3092 }
3093
3094 if (!uses_LOCK_prefix && (prefixes & PREFIX_LOCK))
3095 {
3096 oappend ("lock ");
3097 used_prefixes |= PREFIX_LOCK;
3098 }
3099
3100 if (prefixes & PREFIX_ADDR)
3101 {
3102 sizeflag ^= AFLAG;
3103 if (dp->bytemode3 != loop_jcxz_mode || intel_syntax)
3104 {
3105 if ((sizeflag & AFLAG) || address_mode == mode_64bit)
3106 oappend ("addr32 ");
3107 else
3108 oappend ("addr16 ");
3109 used_prefixes |= PREFIX_ADDR;
3110 }
3111 }
3112
3113 if (!uses_DATA_prefix && (prefixes & PREFIX_DATA))
3114 {
3115 sizeflag ^= DFLAG;
3116 if (dp->bytemode3 == cond_jump_mode
3117 && dp->bytemode1 == v_mode
3118 && !intel_syntax)
3119 {
3120 if (sizeflag & DFLAG)
3121 oappend ("data32 ");
3122 else
3123 oappend ("data16 ");
3124 used_prefixes |= PREFIX_DATA;
3125 }
3126 }
3127
3128 if (dp->name == NULL && dp->bytemode1 == IS_3BYTE_OPCODE)
3129 {
3130 dp = &three_byte_table[dp->bytemode2][op];
3131 mod = (*codep >> 6) & 3;
3132 reg = (*codep >> 3) & 7;
3133 rm = *codep & 7;
3134 }
3135 else if (need_modrm)
3136 {
3137 FETCH_DATA (info, codep + 1);
3138 mod = (*codep >> 6) & 3;
3139 reg = (*codep >> 3) & 7;
3140 rm = *codep & 7;
3141 }
3142
3143 if (dp->name == NULL && dp->bytemode1 == FLOATCODE)
3144 {
3145 dofloat (sizeflag);
3146 }
3147 else
3148 {
3149 int index;
3150 if (dp->name == NULL)
3151 {
3152 switch (dp->bytemode1)
3153 {
3154 case USE_GROUPS:
3155 dp = &grps[dp->bytemode2][reg];
3156 break;
3157
3158 case USE_PREFIX_USER_TABLE:
3159 index = 0;
3160 used_prefixes |= (prefixes & PREFIX_REPZ);
3161 if (prefixes & PREFIX_REPZ)
3162 index = 1;
3163 else
3164 {
3165 /* We should check PREFIX_REPNZ and PREFIX_REPZ
3166 before PREFIX_DATA. */
3167 used_prefixes |= (prefixes & PREFIX_REPNZ);
3168 if (prefixes & PREFIX_REPNZ)
3169 index = 3;
3170 else
3171 {
3172 used_prefixes |= (prefixes & PREFIX_DATA);
3173 if (prefixes & PREFIX_DATA)
3174 index = 2;
3175 }
3176 }
3177 dp = &prefix_user_table[dp->bytemode2][index];
3178 break;
3179
3180 case X86_64_SPECIAL:
3181 index = address_mode == mode_64bit ? 1 : 0;
3182 dp = &x86_64_table[dp->bytemode2][index];
3183 break;
3184
3185 default:
3186 oappend (INTERNAL_DISASSEMBLER_ERROR);
3187 break;
3188 }
3189 }
3190
3191 if (putop (dp->name, sizeflag) == 0)
3192 {
3193 obufp = op1out;
3194 op_ad = 3;
3195 if (dp->op1)
3196 (*dp->op1) (dp->bytemode1, sizeflag);
3197
3198 obufp = op2out;
3199 op_ad = 2;
3200 if (dp->op2)
3201 (*dp->op2) (dp->bytemode2, sizeflag);
3202
3203 obufp = op3out;
3204 op_ad = 1;
3205 if (dp->op3)
3206 (*dp->op3) (dp->bytemode3, sizeflag);
3207
3208 obufp = op4out;
3209 op_ad = 0;
3210 if (dp->op4)
3211 (*dp->op4) (dp->bytemode4, sizeflag);
3212 }
3213 }
3214
3215 /* See if any prefixes were not used. If so, print the first one
3216 separately. If we don't do this, we'll wind up printing an
3217 instruction stream which does not precisely correspond to the
3218 bytes we are disassembling. */
3219 if ((prefixes & ~used_prefixes) != 0)
3220 {
3221 const char *name;
3222
3223 name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag);
3224 if (name == NULL)
3225 name = INTERNAL_DISASSEMBLER_ERROR;
3226 (*info->fprintf_func) (info->stream, "%s", name);
3227 return 1;
3228 }
3229 if (rex & ~rex_used)
3230 {
3231 const char *name;
3232 name = prefix_name (rex | 0x40, priv.orig_sizeflag);
3233 if (name == NULL)
3234 name = INTERNAL_DISASSEMBLER_ERROR;
3235 (*info->fprintf_func) (info->stream, "%s ", name);
3236 }
3237
3238 obufp = obuf + strlen (obuf);
3239 for (i = strlen (obuf); i < 6; i++)
3240 oappend (" ");
3241 oappend (" ");
3242 (*info->fprintf_func) (info->stream, "%s", obuf);
3243
3244 /* The enter and bound instructions are printed with operands in the same
3245 order as the intel book; everything else is printed in reverse order. */
3246 if (intel_syntax || two_source_ops)
3247 {
3248 first = op1out;
3249 second = op2out;
3250 third = op3out;
3251 fourth = op4out;
3252 op_ad = op_index[0];
3253 op_index[0] = op_index[3];
3254 op_index[3] = op_ad;
3255 op_ad = op_index[1];
3256 op_index[1] = op_index[2];
3257 op_index[2] = op_ad;
3258
3259 }
3260 else
3261 {
3262 first = op4out;
3263 second = op3out;
3264 third = op2out;
3265 fourth = op1out;
3266 }
3267 needcomma = 0;
3268 if (*first)
3269 {
3270 if (op_index[0] != -1 && !op_riprel[0])
3271 (*info->print_address_func) ((bfd_vma) op_address[op_index[0]], info);
3272 else
3273 (*info->fprintf_func) (info->stream, "%s", first);
3274 needcomma = 1;
3275 }
3276
3277 if (*second)
3278 {
3279 if (needcomma)
3280 (*info->fprintf_func) (info->stream, ",");
3281 if (op_index[1] != -1 && !op_riprel[1])
3282 (*info->print_address_func) ((bfd_vma) op_address[op_index[1]], info);
3283 else
3284 (*info->fprintf_func) (info->stream, "%s", second);
3285 needcomma = 1;
3286 }
3287
3288 if (*third)
3289 {
3290 if (needcomma)
3291 (*info->fprintf_func) (info->stream, ",");
3292 if (op_index[2] != -1 && !op_riprel[2])
3293 (*info->print_address_func) ((bfd_vma) op_address[op_index[2]], info);
3294 else
3295 (*info->fprintf_func) (info->stream, "%s", third);
3296 needcomma = 1;
3297 }
3298
3299 if (*fourth)
3300 {
3301 if (needcomma)
3302 (*info->fprintf_func) (info->stream, ",");
3303 if (op_index[3] != -1 && !op_riprel[3])
3304 (*info->print_address_func) ((bfd_vma) op_address[op_index[3]], info);
3305 else
3306 (*info->fprintf_func) (info->stream, "%s", fourth);
3307 }
3308
3309 for (i = 0; i < 4; i++)
3310 if (op_index[i] != -1 && op_riprel[i])
3311 {
3312 (*info->fprintf_func) (info->stream, " # ");
3313 (*info->print_address_func) ((bfd_vma) (start_pc + codep - start_codep
3314 + op_address[op_index[i]]), info);
3315 }
3316 return codep - priv.the_buffer;
3317 }
3318
3319 static const char *float_mem[] = {
3320 /* d8 */
3321 "fadd{s||s|}",
3322 "fmul{s||s|}",
3323 "fcom{s||s|}",
3324 "fcomp{s||s|}",
3325 "fsub{s||s|}",
3326 "fsubr{s||s|}",
3327 "fdiv{s||s|}",
3328 "fdivr{s||s|}",
3329 /* d9 */
3330 "fld{s||s|}",
3331 "(bad)",
3332 "fst{s||s|}",
3333 "fstp{s||s|}",
3334 "fldenvIC",
3335 "fldcw",
3336 "fNstenvIC",
3337 "fNstcw",
3338 /* da */
3339 "fiadd{l||l|}",
3340 "fimul{l||l|}",
3341 "ficom{l||l|}",
3342 "ficomp{l||l|}",
3343 "fisub{l||l|}",
3344 "fisubr{l||l|}",
3345 "fidiv{l||l|}",
3346 "fidivr{l||l|}",
3347 /* db */
3348 "fild{l||l|}",
3349 "fisttp{l||l|}",
3350 "fist{l||l|}",
3351 "fistp{l||l|}",
3352 "(bad)",
3353 "fld{t||t|}",
3354 "(bad)",
3355 "fstp{t||t|}",
3356 /* dc */
3357 "fadd{l||l|}",
3358 "fmul{l||l|}",
3359 "fcom{l||l|}",
3360 "fcomp{l||l|}",
3361 "fsub{l||l|}",
3362 "fsubr{l||l|}",
3363 "fdiv{l||l|}",
3364 "fdivr{l||l|}",
3365 /* dd */
3366 "fld{l||l|}",
3367 "fisttp{ll||ll|}",
3368 "fst{l||l|}",
3369 "fstp{l||l|}",
3370 "frstorIC",
3371 "(bad)",
3372 "fNsaveIC",
3373 "fNstsw",
3374 /* de */
3375 "fiadd",
3376 "fimul",
3377 "ficom",
3378 "ficomp",
3379 "fisub",
3380 "fisubr",
3381 "fidiv",
3382 "fidivr",
3383 /* df */
3384 "fild",
3385 "fisttp",
3386 "fist",
3387 "fistp",
3388 "fbld",
3389 "fild{ll||ll|}",
3390 "fbstp",
3391 "fistp{ll||ll|}",
3392 };
3393
3394 static const unsigned char float_mem_mode[] = {
3395 /* d8 */
3396 d_mode,
3397 d_mode,
3398 d_mode,
3399 d_mode,
3400 d_mode,
3401 d_mode,
3402 d_mode,
3403 d_mode,
3404 /* d9 */
3405 d_mode,
3406 0,
3407 d_mode,
3408 d_mode,
3409 0,
3410 w_mode,
3411 0,
3412 w_mode,
3413 /* da */
3414 d_mode,
3415 d_mode,
3416 d_mode,
3417 d_mode,
3418 d_mode,
3419 d_mode,
3420 d_mode,
3421 d_mode,
3422 /* db */
3423 d_mode,
3424 d_mode,
3425 d_mode,
3426 d_mode,
3427 0,
3428 t_mode,
3429 0,
3430 t_mode,
3431 /* dc */
3432 q_mode,
3433 q_mode,
3434 q_mode,
3435 q_mode,
3436 q_mode,
3437 q_mode,
3438 q_mode,
3439 q_mode,
3440 /* dd */
3441 q_mode,
3442 q_mode,
3443 q_mode,
3444 q_mode,
3445 0,
3446 0,
3447 0,
3448 w_mode,
3449 /* de */
3450 w_mode,
3451 w_mode,
3452 w_mode,
3453 w_mode,
3454 w_mode,
3455 w_mode,
3456 w_mode,
3457 w_mode,
3458 /* df */
3459 w_mode,
3460 w_mode,
3461 w_mode,
3462 w_mode,
3463 t_mode,
3464 q_mode,
3465 t_mode,
3466 q_mode
3467 };
3468
3469 #define ST OP_ST, 0
3470 #define STi OP_STi, 0
3471
3472 #define FGRPd9_2 NULL, NULL, 0, NULL, 0, NULL, 0, NULL, 0
3473 #define FGRPd9_4 NULL, NULL, 1, NULL, 0, NULL, 0, NULL, 0
3474 #define FGRPd9_5 NULL, NULL, 2, NULL, 0, NULL, 0, NULL, 0
3475 #define FGRPd9_6 NULL, NULL, 3, NULL, 0, NULL, 0, NULL, 0
3476 #define FGRPd9_7 NULL, NULL, 4, NULL, 0, NULL, 0, NULL, 0
3477 #define FGRPda_5 NULL, NULL, 5, NULL, 0, NULL, 0, NULL, 0
3478 #define FGRPdb_4 NULL, NULL, 6, NULL, 0, NULL, 0, NULL, 0
3479 #define FGRPde_3 NULL, NULL, 7, NULL, 0, NULL, 0, NULL, 0
3480 #define FGRPdf_4 NULL, NULL, 8, NULL, 0, NULL, 0, NULL, 0
3481
3482 static const struct dis386 float_reg[][8] = {
3483 /* d8 */
3484 {
3485 { "fadd", ST, STi, XX, XX },
3486 { "fmul", ST, STi, XX, XX },
3487 { "fcom", STi, XX, XX, XX },
3488 { "fcomp", STi, XX, XX, XX },
3489 { "fsub", ST, STi, XX, XX },
3490 { "fsubr", ST, STi, XX, XX },
3491 { "fdiv", ST, STi, XX, XX },
3492 { "fdivr", ST, STi, XX, XX },
3493 },
3494 /* d9 */
3495 {
3496 { "fld", STi, XX, XX, XX },
3497 { "fxch", STi, XX, XX, XX },
3498 { FGRPd9_2 },
3499 { "(bad)", XX, XX, XX, XX },
3500 { FGRPd9_4 },
3501 { FGRPd9_5 },
3502 { FGRPd9_6 },
3503 { FGRPd9_7 },
3504 },
3505 /* da */
3506 {
3507 { "fcmovb", ST, STi, XX, XX },
3508 { "fcmove", ST, STi, XX, XX },
3509 { "fcmovbe",ST, STi, XX, XX },
3510 { "fcmovu", ST, STi, XX, XX },
3511 { "(bad)", XX, XX, XX, XX },
3512 { FGRPda_5 },
3513 { "(bad)", XX, XX, XX, XX },
3514 { "(bad)", XX, XX, XX, XX },
3515 },
3516 /* db */
3517 {
3518 { "fcmovnb",ST, STi, XX, XX },
3519 { "fcmovne",ST, STi, XX, XX },
3520 { "fcmovnbe",ST, STi, XX, XX },
3521 { "fcmovnu",ST, STi, XX, XX },
3522 { FGRPdb_4 },
3523 { "fucomi", ST, STi, XX, XX },
3524 { "fcomi", ST, STi, XX, XX },
3525 { "(bad)", XX, XX, XX, XX },
3526 },
3527 /* dc */
3528 {
3529 { "fadd", STi, ST, XX, XX },
3530 { "fmul", STi, ST, XX, XX },
3531 { "(bad)", XX, XX, XX, XX },
3532 { "(bad)", XX, XX, XX, XX },
3533 #if UNIXWARE_COMPAT
3534 { "fsub", STi, ST, XX, XX },
3535 { "fsubr", STi, ST, XX, XX },
3536 { "fdiv", STi, ST, XX, XX },
3537 { "fdivr", STi, ST, XX, XX },
3538 #else
3539 { "fsubr", STi, ST, XX, XX },
3540 { "fsub", STi, ST, XX, XX },
3541 { "fdivr", STi, ST, XX, XX },
3542 { "fdiv", STi, ST, XX, XX },
3543 #endif
3544 },
3545 /* dd */
3546 {
3547 { "ffree", STi, XX, XX, XX },
3548 { "(bad)", XX, XX, XX, XX },
3549 { "fst", STi, XX, XX, XX },
3550 { "fstp", STi, XX, XX, XX },
3551 { "fucom", STi, XX, XX, XX },
3552 { "fucomp", STi, XX, XX, XX },
3553 { "(bad)", XX, XX, XX, XX },
3554 { "(bad)", XX, XX, XX, XX },
3555 },
3556 /* de */
3557 {
3558 { "faddp", STi, ST, XX, XX },
3559 { "fmulp", STi, ST, XX, XX },
3560 { "(bad)", XX, XX, XX, XX },
3561 { FGRPde_3 },
3562 #if UNIXWARE_COMPAT
3563 { "fsubp", STi, ST, XX, XX },
3564 { "fsubrp", STi, ST, XX, XX },
3565 { "fdivp", STi, ST, XX, XX },
3566 { "fdivrp", STi, ST, XX, XX },
3567 #else
3568 { "fsubrp", STi, ST, XX, XX },
3569 { "fsubp", STi, ST, XX, XX },
3570 { "fdivrp", STi, ST, XX, XX },
3571 { "fdivp", STi, ST, XX, XX },
3572 #endif
3573 },
3574 /* df */
3575 {
3576 { "ffreep", STi, XX, XX, XX },
3577 { "(bad)", XX, XX, XX, XX },
3578 { "(bad)", XX, XX, XX, XX },
3579 { "(bad)", XX, XX, XX, XX },
3580 { FGRPdf_4 },
3581 { "fucomip",ST, STi, XX, XX },
3582 { "fcomip", ST, STi, XX, XX },
3583 { "(bad)", XX, XX, XX, XX },
3584 },
3585 };
3586
3587 static char *fgrps[][8] = {
3588 /* d9_2 0 */
3589 {
3590 "fnop","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
3591 },
3592
3593 /* d9_4 1 */
3594 {
3595 "fchs","fabs","(bad)","(bad)","ftst","fxam","(bad)","(bad)",
3596 },
3597
3598 /* d9_5 2 */
3599 {
3600 "fld1","fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz","(bad)",
3601 },
3602
3603 /* d9_6 3 */
3604 {
3605 "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp","fincstp",
3606 },
3607
3608 /* d9_7 4 */
3609 {
3610 "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos",
3611 },
3612
3613 /* da_5 5 */
3614 {
3615 "(bad)","fucompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
3616 },
3617
3618 /* db_4 6 */
3619 {
3620 "feni(287 only)","fdisi(287 only)","fNclex","fNinit",
3621 "fNsetpm(287 only)","(bad)","(bad)","(bad)",
3622 },
3623
3624 /* de_3 7 */
3625 {
3626 "(bad)","fcompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
3627 },
3628
3629 /* df_4 8 */
3630 {
3631 "fNstsw","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
3632 },
3633 };
3634
3635 static void
3636 dofloat (int sizeflag)
3637 {
3638 const struct dis386 *dp;
3639 unsigned char floatop;
3640
3641 floatop = codep[-1];
3642
3643 if (mod != 3)
3644 {
3645 int fp_indx = (floatop - 0xd8) * 8 + reg;
3646
3647 putop (float_mem[fp_indx], sizeflag);
3648 obufp = op1out;
3649 op_ad = 2;
3650 OP_E (float_mem_mode[fp_indx], sizeflag);
3651 return;
3652 }
3653 /* Skip mod/rm byte. */
3654 MODRM_CHECK;
3655 codep++;
3656
3657 dp = &float_reg[floatop - 0xd8][reg];
3658 if (dp->name == NULL)
3659 {
3660 putop (fgrps[dp->bytemode1][rm], sizeflag);
3661
3662 /* Instruction fnstsw is only one with strange arg. */
3663 if (floatop == 0xdf && codep[-1] == 0xe0)
3664 strcpy (op1out, names16[0]);
3665 }
3666 else
3667 {
3668 putop (dp->name, sizeflag);
3669
3670 obufp = op1out;
3671 op_ad = 2;
3672 if (dp->op1)
3673 (*dp->op1) (dp->bytemode1, sizeflag);
3674
3675 obufp = op2out;
3676 op_ad = 1;
3677 if (dp->op2)
3678 (*dp->op2) (dp->bytemode2, sizeflag);
3679 }
3680 }
3681
3682 static void
3683 OP_ST (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
3684 {
3685 oappend ("%st" + intel_syntax);
3686 }
3687
3688 static void
3689 OP_STi (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
3690 {
3691 sprintf (scratchbuf, "%%st(%d)", rm);
3692 oappend (scratchbuf + intel_syntax);
3693 }
3694
3695 /* Capital letters in template are macros. */
3696 static int
3697 putop (const char *template, int sizeflag)
3698 {
3699 const char *p;
3700 int alt = 0;
3701
3702 for (p = template; *p; p++)
3703 {
3704 switch (*p)
3705 {
3706 default:
3707 *obufp++ = *p;
3708 break;
3709 case '{':
3710 alt = 0;
3711 if (intel_syntax)
3712 alt += 1;
3713 if (address_mode == mode_64bit)
3714 alt += 2;
3715 while (alt != 0)
3716 {
3717 while (*++p != '|')
3718 {
3719 if (*p == '}')
3720 {
3721 /* Alternative not valid. */
3722 strcpy (obuf, "(bad)");
3723 obufp = obuf + 5;
3724 return 1;
3725 }
3726 else if (*p == '\0')
3727 abort ();
3728 }
3729 alt--;
3730 }
3731 /* Fall through. */
3732 case 'I':
3733 alt = 1;
3734 continue;
3735 case '|':
3736 while (*++p != '}')
3737 {
3738 if (*p == '\0')
3739 abort ();
3740 }
3741 break;
3742 case '}':
3743 break;
3744 case 'A':
3745 if (intel_syntax)
3746 break;
3747 if (mod != 3 || (sizeflag & SUFFIX_ALWAYS))
3748 *obufp++ = 'b';
3749 break;
3750 case 'B':
3751 if (intel_syntax)
3752 break;
3753 if (sizeflag & SUFFIX_ALWAYS)
3754 *obufp++ = 'b';
3755 break;
3756 case 'C':
3757 if (intel_syntax && !alt)
3758 break;
3759 if ((prefixes & PREFIX_DATA) || (sizeflag & SUFFIX_ALWAYS))
3760 {
3761 if (sizeflag & DFLAG)
3762 *obufp++ = intel_syntax ? 'd' : 'l';
3763 else
3764 *obufp++ = intel_syntax ? 'w' : 's';
3765 used_prefixes |= (prefixes & PREFIX_DATA);
3766 }
3767 break;
3768 case 'D':
3769 if (intel_syntax || !(sizeflag & SUFFIX_ALWAYS))
3770 break;
3771 USED_REX (REX_MODE64);
3772 if (mod == 3)
3773 {
3774 if (rex & REX_MODE64)
3775 *obufp++ = 'q';
3776 else if (sizeflag & DFLAG)
3777 *obufp++ = intel_syntax ? 'd' : 'l';
3778 else
3779 *obufp++ = 'w';
3780 used_prefixes |= (prefixes & PREFIX_DATA);
3781 }
3782 else
3783 *obufp++ = 'w';
3784 break;
3785 case 'E': /* For jcxz/jecxz */
3786 if (address_mode == mode_64bit)
3787 {
3788 if (sizeflag & AFLAG)
3789 *obufp++ = 'r';
3790 else
3791 *obufp++ = 'e';
3792 }
3793 else
3794 if (sizeflag & AFLAG)
3795 *obufp++ = 'e';
3796 used_prefixes |= (prefixes & PREFIX_ADDR);
3797 break;
3798 case 'F':
3799 if (intel_syntax)
3800 break;
3801 if ((prefixes & PREFIX_ADDR) || (sizeflag & SUFFIX_ALWAYS))
3802 {
3803 if (sizeflag & AFLAG)
3804 *obufp++ = address_mode == mode_64bit ? 'q' : 'l';
3805 else
3806 *obufp++ = address_mode == mode_64bit ? 'l' : 'w';
3807 used_prefixes |= (prefixes & PREFIX_ADDR);
3808 }
3809 break;
3810 case 'G':
3811 if (intel_syntax || (obufp[-1] != 's' && !(sizeflag & SUFFIX_ALWAYS)))
3812 break;
3813 if ((rex & REX_MODE64) || (sizeflag & DFLAG))
3814 *obufp++ = 'l';
3815 else
3816 *obufp++ = 'w';
3817 if (!(rex & REX_MODE64))
3818 used_prefixes |= (prefixes & PREFIX_DATA);
3819 break;
3820 case 'H':
3821 if (intel_syntax)
3822 break;
3823 if ((prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_CS
3824 || (prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_DS)
3825 {
3826 used_prefixes |= prefixes & (PREFIX_CS | PREFIX_DS);
3827 *obufp++ = ',';
3828 *obufp++ = 'p';
3829 if (prefixes & PREFIX_DS)
3830 *obufp++ = 't';
3831 else
3832 *obufp++ = 'n';
3833 }
3834 break;
3835 case 'J':
3836 if (intel_syntax)
3837 break;
3838 *obufp++ = 'l';
3839 break;
3840 case 'Z':
3841 if (intel_syntax)
3842 break;
3843 if (address_mode == mode_64bit && (sizeflag & SUFFIX_ALWAYS))
3844 {
3845 *obufp++ = 'q';
3846 break;
3847 }
3848 /* Fall through. */
3849 case 'L':
3850 if (intel_syntax)
3851 break;
3852 if (sizeflag & SUFFIX_ALWAYS)
3853 *obufp++ = 'l';
3854 break;
3855 case 'N':
3856 if ((prefixes & PREFIX_FWAIT) == 0)
3857 *obufp++ = 'n';
3858 else
3859 used_prefixes |= PREFIX_FWAIT;
3860 break;
3861 case 'O':
3862 USED_REX (REX_MODE64);
3863 if (rex & REX_MODE64)
3864 *obufp++ = 'o';
3865 else if (intel_syntax && (sizeflag & DFLAG))
3866 *obufp++ = 'q';
3867 else
3868 *obufp++ = 'd';
3869 if (!(rex & REX_MODE64))
3870 used_prefixes |= (prefixes & PREFIX_DATA);
3871 break;
3872 case 'T':
3873 if (intel_syntax)
3874 break;
3875 if (address_mode == mode_64bit && (sizeflag & DFLAG))
3876 {
3877 *obufp++ = 'q';
3878 break;
3879 }
3880 /* Fall through. */
3881 case 'P':
3882 if (intel_syntax)
3883 break;
3884 if ((prefixes & PREFIX_DATA)
3885 || (rex & REX_MODE64)
3886 || (sizeflag & SUFFIX_ALWAYS))
3887 {
3888 USED_REX (REX_MODE64);
3889 if (rex & REX_MODE64)
3890 *obufp++ = 'q';
3891 else
3892 {
3893 if (sizeflag & DFLAG)
3894 *obufp++ = 'l';
3895 else
3896 *obufp++ = 'w';
3897 }
3898 used_prefixes |= (prefixes & PREFIX_DATA);
3899 }
3900 break;
3901 case 'U':
3902 if (intel_syntax)
3903 break;
3904 if (address_mode == mode_64bit && (sizeflag & DFLAG))
3905 {
3906 if (mod != 3 || (sizeflag & SUFFIX_ALWAYS))
3907 *obufp++ = 'q';
3908 break;
3909 }
3910 /* Fall through. */
3911 case 'Q':
3912 if (intel_syntax && !alt)
3913 break;
3914 USED_REX (REX_MODE64);
3915 if (mod != 3 || (sizeflag & SUFFIX_ALWAYS))
3916 {
3917 if (rex & REX_MODE64)
3918 *obufp++ = 'q';
3919 else
3920 {
3921 if (sizeflag & DFLAG)
3922 *obufp++ = intel_syntax ? 'd' : 'l';
3923 else
3924 *obufp++ = 'w';
3925 }
3926 used_prefixes |= (prefixes & PREFIX_DATA);
3927 }
3928 break;
3929 case 'R':
3930 USED_REX (REX_MODE64);
3931 if (rex & REX_MODE64)
3932 *obufp++ = 'q';
3933 else if (sizeflag & DFLAG)
3934 {
3935 if (intel_syntax)
3936 *obufp++ = 'd';
3937 else
3938 *obufp++ = 'l';
3939 }
3940 else
3941 *obufp++ = 'w';
3942 if (intel_syntax && !p[1]
3943 && ((rex & REX_MODE64) || (sizeflag & DFLAG)))
3944 *obufp++ = 'e';
3945 if (!(rex & REX_MODE64))
3946 used_prefixes |= (prefixes & PREFIX_DATA);
3947 break;
3948 case 'V':
3949 if (intel_syntax)
3950 break;
3951 if (address_mode == mode_64bit && (sizeflag & DFLAG))
3952 {
3953 if (sizeflag & SUFFIX_ALWAYS)
3954 *obufp++ = 'q';
3955 break;
3956 }
3957 /* Fall through. */
3958 case 'S':
3959 if (intel_syntax)
3960 break;
3961 if (sizeflag & SUFFIX_ALWAYS)
3962 {
3963 if (rex & REX_MODE64)
3964 *obufp++ = 'q';
3965 else
3966 {
3967 if (sizeflag & DFLAG)
3968 *obufp++ = 'l';
3969 else
3970 *obufp++ = 'w';
3971 used_prefixes |= (prefixes & PREFIX_DATA);
3972 }
3973 }
3974 break;
3975 case 'X':
3976 if (prefixes & PREFIX_DATA)
3977 *obufp++ = 'd';
3978 else
3979 *obufp++ = 's';
3980 used_prefixes |= (prefixes & PREFIX_DATA);
3981 break;
3982 case 'Y':
3983 if (intel_syntax)
3984 break;
3985 if (rex & REX_MODE64)
3986 {
3987 USED_REX (REX_MODE64);
3988 *obufp++ = 'q';
3989 }
3990 break;
3991 /* implicit operand size 'l' for i386 or 'q' for x86-64 */
3992 case 'W':
3993 /* operand size flag for cwtl, cbtw */
3994 USED_REX (REX_MODE64);
3995 if (rex & REX_MODE64)
3996 {
3997 if (intel_syntax)
3998 *obufp++ = 'd';
3999 else
4000 *obufp++ = 'l';
4001 }
4002 else if (sizeflag & DFLAG)
4003 *obufp++ = 'w';
4004 else
4005 *obufp++ = 'b';
4006 if (!(rex & REX_MODE64))
4007 used_prefixes |= (prefixes & PREFIX_DATA);
4008 break;
4009 }
4010 alt = 0;
4011 }
4012 *obufp = 0;
4013 return 0;
4014 }
4015
4016 static void
4017 oappend (const char *s)
4018 {
4019 strcpy (obufp, s);
4020 obufp += strlen (s);
4021 }
4022
4023 static void
4024 append_seg (void)
4025 {
4026 if (prefixes & PREFIX_CS)
4027 {
4028 used_prefixes |= PREFIX_CS;
4029 oappend ("%cs:" + intel_syntax);
4030 }
4031 if (prefixes & PREFIX_DS)
4032 {
4033 used_prefixes |= PREFIX_DS;
4034 oappend ("%ds:" + intel_syntax);
4035 }
4036 if (prefixes & PREFIX_SS)
4037 {
4038 used_prefixes |= PREFIX_SS;
4039 oappend ("%ss:" + intel_syntax);
4040 }
4041 if (prefixes & PREFIX_ES)
4042 {
4043 used_prefixes |= PREFIX_ES;
4044 oappend ("%es:" + intel_syntax);
4045 }
4046 if (prefixes & PREFIX_FS)
4047 {
4048 used_prefixes |= PREFIX_FS;
4049 oappend ("%fs:" + intel_syntax);
4050 }
4051 if (prefixes & PREFIX_GS)
4052 {
4053 used_prefixes |= PREFIX_GS;
4054 oappend ("%gs:" + intel_syntax);
4055 }
4056 }
4057
4058 static void
4059 OP_indirE (int bytemode, int sizeflag)
4060 {
4061 if (!intel_syntax)
4062 oappend ("*");
4063 OP_E (bytemode, sizeflag);
4064 }
4065
4066 static void
4067 print_operand_value (char *buf, int hex, bfd_vma disp)
4068 {
4069 if (address_mode == mode_64bit)
4070 {
4071 if (hex)
4072 {
4073 char tmp[30];
4074 int i;
4075 buf[0] = '0';
4076 buf[1] = 'x';
4077 sprintf_vma (tmp, disp);
4078 for (i = 0; tmp[i] == '0' && tmp[i + 1]; i++);
4079 strcpy (buf + 2, tmp + i);
4080 }
4081 else
4082 {
4083 bfd_signed_vma v = disp;
4084 char tmp[30];
4085 int i;
4086 if (v < 0)
4087 {
4088 *(buf++) = '-';
4089 v = -disp;
4090 /* Check for possible overflow on 0x8000000000000000. */
4091 if (v < 0)
4092 {
4093 strcpy (buf, "9223372036854775808");
4094 return;
4095 }
4096 }
4097 if (!v)
4098 {
4099 strcpy (buf, "0");
4100 return;
4101 }
4102
4103 i = 0;
4104 tmp[29] = 0;
4105 while (v)
4106 {
4107 tmp[28 - i] = (v % 10) + '0';
4108 v /= 10;
4109 i++;
4110 }
4111 strcpy (buf, tmp + 29 - i);
4112 }
4113 }
4114 else
4115 {
4116 if (hex)
4117 sprintf (buf, "0x%x", (unsigned int) disp);
4118 else
4119 sprintf (buf, "%d", (int) disp);
4120 }
4121 }
4122
4123 static void
4124 intel_operand_size (int bytemode, int sizeflag)
4125 {
4126 switch (bytemode)
4127 {
4128 case b_mode:
4129 oappend ("BYTE PTR ");
4130 break;
4131 case w_mode:
4132 case dqw_mode:
4133 oappend ("WORD PTR ");
4134 break;
4135 case stack_v_mode:
4136 if (address_mode == mode_64bit && (sizeflag & DFLAG))
4137 {
4138 oappend ("QWORD PTR ");
4139 used_prefixes |= (prefixes & PREFIX_DATA);
4140 break;
4141 }
4142 /* FALLTHRU */
4143 case v_mode:
4144 case dq_mode:
4145 USED_REX (REX_MODE64);
4146 if (rex & REX_MODE64)
4147 oappend ("QWORD PTR ");
4148 else if ((sizeflag & DFLAG) || bytemode == dq_mode)
4149 oappend ("DWORD PTR ");
4150 else
4151 oappend ("WORD PTR ");
4152 used_prefixes |= (prefixes & PREFIX_DATA);
4153 break;
4154 case z_mode:
4155 if ((rex & REX_MODE64) || (sizeflag & DFLAG))
4156 *obufp++ = 'D';
4157 oappend ("WORD PTR ");
4158 if (!(rex & REX_MODE64))
4159 used_prefixes |= (prefixes & PREFIX_DATA);
4160 break;
4161 case d_mode:
4162 oappend ("DWORD PTR ");
4163 break;
4164 case q_mode:
4165 oappend ("QWORD PTR ");
4166 break;
4167 case m_mode:
4168 if (address_mode == mode_64bit)
4169 oappend ("QWORD PTR ");
4170 else
4171 oappend ("DWORD PTR ");
4172 break;
4173 case f_mode:
4174 if (sizeflag & DFLAG)
4175 oappend ("FWORD PTR ");
4176 else
4177 oappend ("DWORD PTR ");
4178 used_prefixes |= (prefixes & PREFIX_DATA);
4179 break;
4180 case t_mode:
4181 oappend ("TBYTE PTR ");
4182 break;
4183 case x_mode:
4184 oappend ("XMMWORD PTR ");
4185 break;
4186 case o_mode:
4187 oappend ("OWORD PTR ");
4188 break;
4189 default:
4190 break;
4191 }
4192 }
4193
4194 static void
4195 OP_E (int bytemode, int sizeflag)
4196 {
4197 bfd_vma disp;
4198 int add = 0;
4199 int riprel = 0;
4200 USED_REX (REX_EXTZ);
4201 if (rex & REX_EXTZ)
4202 add += 8;
4203
4204 /* Skip mod/rm byte. */
4205 MODRM_CHECK;
4206 codep++;
4207
4208 if (mod == 3)
4209 {
4210 switch (bytemode)
4211 {
4212 case b_mode:
4213 USED_REX (0);
4214 if (rex)
4215 oappend (names8rex[rm + add]);
4216 else
4217 oappend (names8[rm + add]);
4218 break;
4219 case w_mode:
4220 oappend (names16[rm + add]);
4221 break;
4222 case d_mode:
4223 oappend (names32[rm + add]);
4224 break;
4225 case q_mode:
4226 oappend (names64[rm + add]);
4227 break;
4228 case m_mode:
4229 if (address_mode == mode_64bit)
4230 oappend (names64[rm + add]);
4231 else
4232 oappend (names32[rm + add]);
4233 break;
4234 case stack_v_mode:
4235 if (address_mode == mode_64bit && (sizeflag & DFLAG))
4236 {
4237 oappend (names64[rm + add]);
4238 used_prefixes |= (prefixes & PREFIX_DATA);
4239 break;
4240 }
4241 bytemode = v_mode;
4242 /* FALLTHRU */
4243 case v_mode:
4244 case dq_mode:
4245 case dqw_mode:
4246 USED_REX (REX_MODE64);
4247 if (rex & REX_MODE64)
4248 oappend (names64[rm + add]);
4249 else if ((sizeflag & DFLAG) || bytemode != v_mode)
4250 oappend (names32[rm + add]);
4251 else
4252 oappend (names16[rm + add]);
4253 used_prefixes |= (prefixes & PREFIX_DATA);
4254 break;
4255 case 0:
4256 break;
4257 default:
4258 oappend (INTERNAL_DISASSEMBLER_ERROR);
4259 break;
4260 }
4261 return;
4262 }
4263
4264 disp = 0;
4265 if (intel_syntax)
4266 intel_operand_size (bytemode, sizeflag);
4267 append_seg ();
4268
4269 if ((sizeflag & AFLAG) || address_mode == mode_64bit) /* 32 bit address mode */
4270 {
4271 int havesib;
4272 int havebase;
4273 int base;
4274 int index = 0;
4275 int scale = 0;
4276
4277 havesib = 0;
4278 havebase = 1;
4279 base = rm;
4280
4281 if (base == 4)
4282 {
4283 havesib = 1;
4284 FETCH_DATA (the_info, codep + 1);
4285 index = (*codep >> 3) & 7;
4286 if (address_mode == mode_64bit || index != 0x4)
4287 /* When INDEX == 0x4 in 32 bit mode, SCALE is ignored. */
4288 scale = (*codep >> 6) & 3;
4289 base = *codep & 7;
4290 USED_REX (REX_EXTY);
4291 if (rex & REX_EXTY)
4292 index += 8;
4293 codep++;
4294 }
4295 base += add;
4296
4297 switch (mod)
4298 {
4299 case 0:
4300 if ((base & 7) == 5)
4301 {
4302 havebase = 0;
4303 if (address_mode == mode_64bit && !havesib)
4304 riprel = 1;
4305 disp = get32s ();
4306 }
4307 break;
4308 case 1:
4309 FETCH_DATA (the_info, codep + 1);
4310 disp = *codep++;
4311 if ((disp & 0x80) != 0)
4312 disp -= 0x100;
4313 break;
4314 case 2:
4315 disp = get32s ();
4316 break;
4317 }
4318
4319 if (!intel_syntax)
4320 if (mod != 0 || (base & 7) == 5)
4321 {
4322 print_operand_value (scratchbuf, !riprel, disp);
4323 oappend (scratchbuf);
4324 if (riprel)
4325 {
4326 set_op (disp, 1);
4327 oappend ("(%rip)");
4328 }
4329 }
4330
4331 if (havebase || (havesib && (index != 4 || scale != 0)))
4332 {
4333 *obufp++ = open_char;
4334 if (intel_syntax && riprel)
4335 oappend ("rip + ");
4336 *obufp = '\0';
4337 if (havebase)
4338 oappend (address_mode == mode_64bit && (sizeflag & AFLAG)
4339 ? names64[base] : names32[base]);
4340 if (havesib)
4341 {
4342 if (index != 4)
4343 {
4344 if (!intel_syntax || havebase)
4345 {
4346 *obufp++ = separator_char;
4347 *obufp = '\0';
4348 }
4349 oappend (address_mode == mode_64bit && (sizeflag & AFLAG)
4350 ? names64[index] : names32[index]);
4351 }
4352 if (scale != 0 || (!intel_syntax && index != 4))
4353 {
4354 *obufp++ = scale_char;
4355 *obufp = '\0';
4356 sprintf (scratchbuf, "%d", 1 << scale);
4357 oappend (scratchbuf);
4358 }
4359 }
4360 if (intel_syntax && disp)
4361 {
4362 if ((bfd_signed_vma) disp > 0)
4363 {
4364 *obufp++ = '+';
4365 *obufp = '\0';
4366 }
4367 else if (mod != 1)
4368 {
4369 *obufp++ = '-';
4370 *obufp = '\0';
4371 disp = - (bfd_signed_vma) disp;
4372 }
4373
4374 print_operand_value (scratchbuf, mod != 1, disp);
4375 oappend (scratchbuf);
4376 }
4377
4378 *obufp++ = close_char;
4379 *obufp = '\0';
4380 }
4381 else if (intel_syntax)
4382 {
4383 if (mod != 0 || (base & 7) == 5)
4384 {
4385 if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
4386 | PREFIX_ES | PREFIX_FS | PREFIX_GS))
4387 ;
4388 else
4389 {
4390 oappend (names_seg[ds_reg - es_reg]);
4391 oappend (":");
4392 }
4393 print_operand_value (scratchbuf, 1, disp);
4394 oappend (scratchbuf);
4395 }
4396 }
4397 }
4398 else
4399 { /* 16 bit address mode */
4400 switch (mod)
4401 {
4402 case 0:
4403 if (rm == 6)
4404 {
4405 disp = get16 ();
4406 if ((disp & 0x8000) != 0)
4407 disp -= 0x10000;
4408 }
4409 break;
4410 case 1:
4411 FETCH_DATA (the_info, codep + 1);
4412 disp = *codep++;
4413 if ((disp & 0x80) != 0)
4414 disp -= 0x100;
4415 break;
4416 case 2:
4417 disp = get16 ();
4418 if ((disp & 0x8000) != 0)
4419 disp -= 0x10000;
4420 break;
4421 }
4422
4423 if (!intel_syntax)
4424 if (mod != 0 || rm == 6)
4425 {
4426 print_operand_value (scratchbuf, 0, disp);
4427 oappend (scratchbuf);
4428 }
4429
4430 if (mod != 0 || rm != 6)
4431 {
4432 *obufp++ = open_char;
4433 *obufp = '\0';
4434 oappend (index16[rm]);
4435 if (intel_syntax && disp)
4436 {
4437 if ((bfd_signed_vma) disp > 0)
4438 {
4439 *obufp++ = '+';
4440 *obufp = '\0';
4441 }
4442 else if (mod != 1)
4443 {
4444 *obufp++ = '-';
4445 *obufp = '\0';
4446 disp = - (bfd_signed_vma) disp;
4447 }
4448
4449 print_operand_value (scratchbuf, mod != 1, disp);
4450 oappend (scratchbuf);
4451 }
4452
4453 *obufp++ = close_char;
4454 *obufp = '\0';
4455 }
4456 else if (intel_syntax)
4457 {
4458 if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
4459 | PREFIX_ES | PREFIX_FS | PREFIX_GS))
4460 ;
4461 else
4462 {
4463 oappend (names_seg[ds_reg - es_reg]);
4464 oappend (":");
4465 }
4466 print_operand_value (scratchbuf, 1, disp & 0xffff);
4467 oappend (scratchbuf);
4468 }
4469 }
4470 }
4471
4472 static void
4473 OP_G (int bytemode, int sizeflag)
4474 {
4475 int add = 0;
4476 USED_REX (REX_EXTX);
4477 if (rex & REX_EXTX)
4478 add += 8;
4479 switch (bytemode)
4480 {
4481 case b_mode:
4482 USED_REX (0);
4483 if (rex)
4484 oappend (names8rex[reg + add]);
4485 else
4486 oappend (names8[reg + add]);
4487 break;
4488 case w_mode:
4489 oappend (names16[reg + add]);
4490 break;
4491 case d_mode:
4492 oappend (names32[reg + add]);
4493 break;
4494 case q_mode:
4495 oappend (names64[reg + add]);
4496 break;
4497 case v_mode:
4498 case dq_mode:
4499 case dqw_mode:
4500 USED_REX (REX_MODE64);
4501 if (rex & REX_MODE64)
4502 oappend (names64[reg + add]);
4503 else if ((sizeflag & DFLAG) || bytemode != v_mode)
4504 oappend (names32[reg + add]);
4505 else
4506 oappend (names16[reg + add]);
4507 used_prefixes |= (prefixes & PREFIX_DATA);
4508 break;
4509 case m_mode:
4510 if (address_mode == mode_64bit)
4511 oappend (names64[reg + add]);
4512 else
4513 oappend (names32[reg + add]);
4514 break;
4515 default:
4516 oappend (INTERNAL_DISASSEMBLER_ERROR);
4517 break;
4518 }
4519 }
4520
4521 static bfd_vma
4522 get64 (void)
4523 {
4524 bfd_vma x;
4525 #ifdef BFD64
4526 unsigned int a;
4527 unsigned int b;
4528
4529 FETCH_DATA (the_info, codep + 8);
4530 a = *codep++ & 0xff;
4531 a |= (*codep++ & 0xff) << 8;
4532 a |= (*codep++ & 0xff) << 16;
4533 a |= (*codep++ & 0xff) << 24;
4534 b = *codep++ & 0xff;
4535 b |= (*codep++ & 0xff) << 8;
4536 b |= (*codep++ & 0xff) << 16;
4537 b |= (*codep++ & 0xff) << 24;
4538 x = a + ((bfd_vma) b << 32);
4539 #else
4540 abort ();
4541 x = 0;
4542 #endif
4543 return x;
4544 }
4545
4546 static bfd_signed_vma
4547 get32 (void)
4548 {
4549 bfd_signed_vma x = 0;
4550
4551 FETCH_DATA (the_info, codep + 4);
4552 x = *codep++ & (bfd_signed_vma) 0xff;
4553 x |= (*codep++ & (bfd_signed_vma) 0xff) << 8;
4554 x |= (*codep++ & (bfd_signed_vma) 0xff) << 16;
4555 x |= (*codep++ & (bfd_signed_vma) 0xff) << 24;
4556 return x;
4557 }
4558
4559 static bfd_signed_vma
4560 get32s (void)
4561 {
4562 bfd_signed_vma x = 0;
4563
4564 FETCH_DATA (the_info, codep + 4);
4565 x = *codep++ & (bfd_signed_vma) 0xff;
4566 x |= (*codep++ & (bfd_signed_vma) 0xff) << 8;
4567 x |= (*codep++ & (bfd_signed_vma) 0xff) << 16;
4568 x |= (*codep++ & (bfd_signed_vma) 0xff) << 24;
4569
4570 x = (x ^ ((bfd_signed_vma) 1 << 31)) - ((bfd_signed_vma) 1 << 31);
4571
4572 return x;
4573 }
4574
4575 static int
4576 get16 (void)
4577 {
4578 int x = 0;
4579
4580 FETCH_DATA (the_info, codep + 2);
4581 x = *codep++ & 0xff;
4582 x |= (*codep++ & 0xff) << 8;
4583 return x;
4584 }
4585
4586 static void
4587 set_op (bfd_vma op, int riprel)
4588 {
4589 op_index[op_ad] = op_ad;
4590 if (address_mode == mode_64bit)
4591 {
4592 op_address[op_ad] = op;
4593 op_riprel[op_ad] = riprel;
4594 }
4595 else
4596 {
4597 /* Mask to get a 32-bit address. */
4598 op_address[op_ad] = op & 0xffffffff;
4599 op_riprel[op_ad] = riprel & 0xffffffff;
4600 }
4601 }
4602
4603 static void
4604 OP_REG (int code, int sizeflag)
4605 {
4606 const char *s;
4607 int add = 0;
4608 USED_REX (REX_EXTZ);
4609 if (rex & REX_EXTZ)
4610 add = 8;
4611
4612 switch (code)
4613 {
4614 case ax_reg: case cx_reg: case dx_reg: case bx_reg:
4615 case sp_reg: case bp_reg: case si_reg: case di_reg:
4616 s = names16[code - ax_reg + add];
4617 break;
4618 case es_reg: case ss_reg: case cs_reg:
4619 case ds_reg: case fs_reg: case gs_reg:
4620 s = names_seg[code - es_reg + add];
4621 break;
4622 case al_reg: case ah_reg: case cl_reg: case ch_reg:
4623 case dl_reg: case dh_reg: case bl_reg: case bh_reg:
4624 USED_REX (0);
4625 if (rex)
4626 s = names8rex[code - al_reg + add];
4627 else
4628 s = names8[code - al_reg];
4629 break;
4630 case rAX_reg: case rCX_reg: case rDX_reg: case rBX_reg:
4631 case rSP_reg: case rBP_reg: case rSI_reg: case rDI_reg:
4632 if (address_mode == mode_64bit && (sizeflag & DFLAG))
4633 {
4634 s = names64[code - rAX_reg + add];
4635 break;
4636 }
4637 code += eAX_reg - rAX_reg;
4638 /* Fall through. */
4639 case eAX_reg: case eCX_reg: case eDX_reg: case eBX_reg:
4640 case eSP_reg: case eBP_reg: case eSI_reg: case eDI_reg:
4641 USED_REX (REX_MODE64);
4642 if (rex & REX_MODE64)
4643 s = names64[code - eAX_reg + add];
4644 else if (sizeflag & DFLAG)
4645 s = names32[code - eAX_reg + add];
4646 else
4647 s = names16[code - eAX_reg + add];
4648 used_prefixes |= (prefixes & PREFIX_DATA);
4649 break;
4650 default:
4651 s = INTERNAL_DISASSEMBLER_ERROR;
4652 break;
4653 }
4654 oappend (s);
4655 }
4656
4657 static void
4658 OP_IMREG (int code, int sizeflag)
4659 {
4660 const char *s;
4661
4662 switch (code)
4663 {
4664 case indir_dx_reg:
4665 if (intel_syntax)
4666 s = "dx";
4667 else
4668 s = "(%dx)";
4669 break;
4670 case ax_reg: case cx_reg: case dx_reg: case bx_reg:
4671 case sp_reg: case bp_reg: case si_reg: case di_reg:
4672 s = names16[code - ax_reg];
4673 break;
4674 case es_reg: case ss_reg: case cs_reg:
4675 case ds_reg: case fs_reg: case gs_reg:
4676 s = names_seg[code - es_reg];
4677 break;
4678 case al_reg: case ah_reg: case cl_reg: case ch_reg:
4679 case dl_reg: case dh_reg: case bl_reg: case bh_reg:
4680 USED_REX (0);
4681 if (rex)
4682 s = names8rex[code - al_reg];
4683 else
4684 s = names8[code - al_reg];
4685 break;
4686 case eAX_reg: case eCX_reg: case eDX_reg: case eBX_reg:
4687 case eSP_reg: case eBP_reg: case eSI_reg: case eDI_reg:
4688 USED_REX (REX_MODE64);
4689 if (rex & REX_MODE64)
4690 s = names64[code - eAX_reg];
4691 else if (sizeflag & DFLAG)
4692 s = names32[code - eAX_reg];
4693 else
4694 s = names16[code - eAX_reg];
4695 used_prefixes |= (prefixes & PREFIX_DATA);
4696 break;
4697 case z_mode_ax_reg:
4698 if ((rex & REX_MODE64) || (sizeflag & DFLAG))
4699 s = *names32;
4700 else
4701 s = *names16;
4702 if (!(rex & REX_MODE64))
4703 used_prefixes |= (prefixes & PREFIX_DATA);
4704 break;
4705 default:
4706 s = INTERNAL_DISASSEMBLER_ERROR;
4707 break;
4708 }
4709 oappend (s);
4710 }
4711
4712 static void
4713 OP_I (int bytemode, int sizeflag)
4714 {
4715 bfd_signed_vma op;
4716 bfd_signed_vma mask = -1;
4717
4718 switch (bytemode)
4719 {
4720 case b_mode:
4721 FETCH_DATA (the_info, codep + 1);
4722 op = *codep++;
4723 mask = 0xff;
4724 break;
4725 case q_mode:
4726 if (address_mode == mode_64bit)
4727 {
4728 op = get32s ();
4729 break;
4730 }
4731 /* Fall through. */
4732 case v_mode:
4733 USED_REX (REX_MODE64);
4734 if (rex & REX_MODE64)
4735 op = get32s ();
4736 else if (sizeflag & DFLAG)
4737 {
4738 op = get32 ();
4739 mask = 0xffffffff;
4740 }
4741 else
4742 {
4743 op = get16 ();
4744 mask = 0xfffff;
4745 }
4746 used_prefixes |= (prefixes & PREFIX_DATA);
4747 break;
4748 case w_mode:
4749 mask = 0xfffff;
4750 op = get16 ();
4751 break;
4752 case const_1_mode:
4753 if (intel_syntax)
4754 oappend ("1");
4755 return;
4756 default:
4757 oappend (INTERNAL_DISASSEMBLER_ERROR);
4758 return;
4759 }
4760
4761 op &= mask;
4762 scratchbuf[0] = '$';
4763 print_operand_value (scratchbuf + 1, 1, op);
4764 oappend (scratchbuf + intel_syntax);
4765 scratchbuf[0] = '\0';
4766 }
4767
4768 static void
4769 OP_I64 (int bytemode, int sizeflag)
4770 {
4771 bfd_signed_vma op;
4772 bfd_signed_vma mask = -1;
4773
4774 if (address_mode != mode_64bit)
4775 {
4776 OP_I (bytemode, sizeflag);
4777 return;
4778 }
4779
4780 switch (bytemode)
4781 {
4782 case b_mode:
4783 FETCH_DATA (the_info, codep + 1);
4784 op = *codep++;
4785 mask = 0xff;
4786 break;
4787 case v_mode:
4788 USED_REX (REX_MODE64);
4789 if (rex & REX_MODE64)
4790 op = get64 ();
4791 else if (sizeflag & DFLAG)
4792 {
4793 op = get32 ();
4794 mask = 0xffffffff;
4795 }
4796 else
4797 {
4798 op = get16 ();
4799 mask = 0xfffff;
4800 }
4801 used_prefixes |= (prefixes & PREFIX_DATA);
4802 break;
4803 case w_mode:
4804 mask = 0xfffff;
4805 op = get16 ();
4806 break;
4807 default:
4808 oappend (INTERNAL_DISASSEMBLER_ERROR);
4809 return;
4810 }
4811
4812 op &= mask;
4813 scratchbuf[0] = '$';
4814 print_operand_value (scratchbuf + 1, 1, op);
4815 oappend (scratchbuf + intel_syntax);
4816 scratchbuf[0] = '\0';
4817 }
4818
4819 static void
4820 OP_sI (int bytemode, int sizeflag)
4821 {
4822 bfd_signed_vma op;
4823 bfd_signed_vma mask = -1;
4824
4825 switch (bytemode)
4826 {
4827 case b_mode:
4828 FETCH_DATA (the_info, codep + 1);
4829 op = *codep++;
4830 if ((op & 0x80) != 0)
4831 op -= 0x100;
4832 mask = 0xffffffff;
4833 break;
4834 case v_mode:
4835 USED_REX (REX_MODE64);
4836 if (rex & REX_MODE64)
4837 op = get32s ();
4838 else if (sizeflag & DFLAG)
4839 {
4840 op = get32s ();
4841 mask = 0xffffffff;
4842 }
4843 else
4844 {
4845 mask = 0xffffffff;
4846 op = get16 ();
4847 if ((op & 0x8000) != 0)
4848 op -= 0x10000;
4849 }
4850 used_prefixes |= (prefixes & PREFIX_DATA);
4851 break;
4852 case w_mode:
4853 op = get16 ();
4854 mask = 0xffffffff;
4855 if ((op & 0x8000) != 0)
4856 op -= 0x10000;
4857 break;
4858 default:
4859 oappend (INTERNAL_DISASSEMBLER_ERROR);
4860 return;
4861 }
4862
4863 scratchbuf[0] = '$';
4864 print_operand_value (scratchbuf + 1, 1, op);
4865 oappend (scratchbuf + intel_syntax);
4866 }
4867
4868 static void
4869 OP_J (int bytemode, int sizeflag)
4870 {
4871 bfd_vma disp;
4872 bfd_vma mask = -1;
4873
4874 switch (bytemode)
4875 {
4876 case b_mode:
4877 FETCH_DATA (the_info, codep + 1);
4878 disp = *codep++;
4879 if ((disp & 0x80) != 0)
4880 disp -= 0x100;
4881 break;
4882 case v_mode:
4883 if ((sizeflag & DFLAG) || (rex & REX_MODE64))
4884 disp = get32s ();
4885 else
4886 {
4887 disp = get16 ();
4888 /* For some reason, a data16 prefix on a jump instruction
4889 means that the pc is masked to 16 bits after the
4890 displacement is added! */
4891 mask = 0xffff;
4892 }
4893 used_prefixes |= (prefixes & PREFIX_DATA);
4894 break;
4895 default:
4896 oappend (INTERNAL_DISASSEMBLER_ERROR);
4897 return;
4898 }
4899 disp = (start_pc + codep - start_codep + disp) & mask;
4900 set_op (disp, 0);
4901 print_operand_value (scratchbuf, 1, disp);
4902 oappend (scratchbuf);
4903 }
4904
4905 static void
4906 OP_SEG (int bytemode, int sizeflag)
4907 {
4908 if (bytemode == w_mode)
4909 oappend (names_seg[reg]);
4910 else
4911 OP_E (mod == 3 ? bytemode : w_mode, sizeflag);
4912 }
4913
4914 static void
4915 OP_DIR (int dummy ATTRIBUTE_UNUSED, int sizeflag)
4916 {
4917 int seg, offset;
4918
4919 if (sizeflag & DFLAG)
4920 {
4921 offset = get32 ();
4922 seg = get16 ();
4923 }
4924 else
4925 {
4926 offset = get16 ();
4927 seg = get16 ();
4928 }
4929 used_prefixes |= (prefixes & PREFIX_DATA);
4930 if (intel_syntax)
4931 sprintf (scratchbuf, "0x%x:0x%x", seg, offset);
4932 else
4933 sprintf (scratchbuf, "$0x%x,$0x%x", seg, offset);
4934 oappend (scratchbuf);
4935 }
4936
4937 static void
4938 OP_OFF (int bytemode, int sizeflag)
4939 {
4940 bfd_vma off;
4941
4942 if (intel_syntax && (sizeflag & SUFFIX_ALWAYS))
4943 intel_operand_size (bytemode, sizeflag);
4944 append_seg ();
4945
4946 if ((sizeflag & AFLAG) || address_mode == mode_64bit)
4947 off = get32 ();
4948 else
4949 off = get16 ();
4950
4951 if (intel_syntax)
4952 {
4953 if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
4954 | PREFIX_ES | PREFIX_FS | PREFIX_GS)))
4955 {
4956 oappend (names_seg[ds_reg - es_reg]);
4957 oappend (":");
4958 }
4959 }
4960 print_operand_value (scratchbuf, 1, off);
4961 oappend (scratchbuf);
4962 }
4963
4964 static void
4965 OP_OFF64 (int bytemode, int sizeflag)
4966 {
4967 bfd_vma off;
4968
4969 if (address_mode != mode_64bit
4970 || (prefixes & PREFIX_ADDR))
4971 {
4972 OP_OFF (bytemode, sizeflag);
4973 return;
4974 }
4975
4976 if (intel_syntax && (sizeflag & SUFFIX_ALWAYS))
4977 intel_operand_size (bytemode, sizeflag);
4978 append_seg ();
4979
4980 off = get64 ();
4981
4982 if (intel_syntax)
4983 {
4984 if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
4985 | PREFIX_ES | PREFIX_FS | PREFIX_GS)))
4986 {
4987 oappend (names_seg[ds_reg - es_reg]);
4988 oappend (":");
4989 }
4990 }
4991 print_operand_value (scratchbuf, 1, off);
4992 oappend (scratchbuf);
4993 }
4994
4995 static void
4996 ptr_reg (int code, int sizeflag)
4997 {
4998 const char *s;
4999
5000 *obufp++ = open_char;
5001 used_prefixes |= (prefixes & PREFIX_ADDR);
5002 if (address_mode == mode_64bit)
5003 {
5004 if (!(sizeflag & AFLAG))
5005 s = names32[code - eAX_reg];
5006 else
5007 s = names64[code - eAX_reg];
5008 }
5009 else if (sizeflag & AFLAG)
5010 s = names32[code - eAX_reg];
5011 else
5012 s = names16[code - eAX_reg];
5013 oappend (s);
5014 *obufp++ = close_char;
5015 *obufp = 0;
5016 }
5017
5018 static void
5019 OP_ESreg (int code, int sizeflag)
5020 {
5021 if (intel_syntax)
5022 {
5023 switch (codep[-1])
5024 {
5025 case 0x6d: /* insw/insl */
5026 intel_operand_size (z_mode, sizeflag);
5027 break;
5028 case 0xa5: /* movsw/movsl/movsq */
5029 case 0xa7: /* cmpsw/cmpsl/cmpsq */
5030 case 0xab: /* stosw/stosl */
5031 case 0xaf: /* scasw/scasl */
5032 intel_operand_size (v_mode, sizeflag);
5033 break;
5034 default:
5035 intel_operand_size (b_mode, sizeflag);
5036 }
5037 }
5038 oappend ("%es:" + intel_syntax);
5039 ptr_reg (code, sizeflag);
5040 }
5041
5042 static void
5043 OP_DSreg (int code, int sizeflag)
5044 {
5045 if (intel_syntax)
5046 {
5047 switch (codep[-1])
5048 {
5049 case 0x6f: /* outsw/outsl */
5050 intel_operand_size (z_mode, sizeflag);
5051 break;
5052 case 0xa5: /* movsw/movsl/movsq */
5053 case 0xa7: /* cmpsw/cmpsl/cmpsq */
5054 case 0xad: /* lodsw/lodsl/lodsq */
5055 intel_operand_size (v_mode, sizeflag);
5056 break;
5057 default:
5058 intel_operand_size (b_mode, sizeflag);
5059 }
5060 }
5061 if ((prefixes
5062 & (PREFIX_CS
5063 | PREFIX_DS
5064 | PREFIX_SS
5065 | PREFIX_ES
5066 | PREFIX_FS
5067 | PREFIX_GS)) == 0)
5068 prefixes |= PREFIX_DS;
5069 append_seg ();
5070 ptr_reg (code, sizeflag);
5071 }
5072
5073 static void
5074 OP_C (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5075 {
5076 int add = 0;
5077 if (rex & REX_EXTX)
5078 {
5079 USED_REX (REX_EXTX);
5080 add = 8;
5081 }
5082 else if (address_mode != mode_64bit && (prefixes & PREFIX_LOCK))
5083 {
5084 used_prefixes |= PREFIX_LOCK;
5085 add = 8;
5086 }
5087 sprintf (scratchbuf, "%%cr%d", reg + add);
5088 oappend (scratchbuf + intel_syntax);
5089 }
5090
5091 static void
5092 OP_D (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5093 {
5094 int add = 0;
5095 USED_REX (REX_EXTX);
5096 if (rex & REX_EXTX)
5097 add = 8;
5098 if (intel_syntax)
5099 sprintf (scratchbuf, "db%d", reg + add);
5100 else
5101 sprintf (scratchbuf, "%%db%d", reg + add);
5102 oappend (scratchbuf);
5103 }
5104
5105 static void
5106 OP_T (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5107 {
5108 sprintf (scratchbuf, "%%tr%d", reg);
5109 oappend (scratchbuf + intel_syntax);
5110 }
5111
5112 static void
5113 OP_Rd (int bytemode, int sizeflag)
5114 {
5115 if (mod == 3)
5116 OP_E (bytemode, sizeflag);
5117 else
5118 BadOp ();
5119 }
5120
5121 static void
5122 OP_MMX (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5123 {
5124 used_prefixes |= (prefixes & PREFIX_DATA);
5125 if (prefixes & PREFIX_DATA)
5126 {
5127 int add = 0;
5128 USED_REX (REX_EXTX);
5129 if (rex & REX_EXTX)
5130 add = 8;
5131 sprintf (scratchbuf, "%%xmm%d", reg + add);
5132 }
5133 else
5134 sprintf (scratchbuf, "%%mm%d", reg);
5135 oappend (scratchbuf + intel_syntax);
5136 }
5137
5138 static void
5139 OP_XMM (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5140 {
5141 int add = 0;
5142 USED_REX (REX_EXTX);
5143 if (rex & REX_EXTX)
5144 add = 8;
5145 sprintf (scratchbuf, "%%xmm%d", reg + add);
5146 oappend (scratchbuf + intel_syntax);
5147 }
5148
5149 static void
5150 OP_EM (int bytemode, int sizeflag)
5151 {
5152 if (mod != 3)
5153 {
5154 if (intel_syntax && bytemode == v_mode)
5155 {
5156 bytemode = (prefixes & PREFIX_DATA) ? x_mode : q_mode;
5157 used_prefixes |= (prefixes & PREFIX_DATA);
5158 }
5159 OP_E (bytemode, sizeflag);
5160 return;
5161 }
5162
5163 /* Skip mod/rm byte. */
5164 MODRM_CHECK;
5165 codep++;
5166 used_prefixes |= (prefixes & PREFIX_DATA);
5167 if (prefixes & PREFIX_DATA)
5168 {
5169 int add = 0;
5170
5171 USED_REX (REX_EXTZ);
5172 if (rex & REX_EXTZ)
5173 add = 8;
5174 sprintf (scratchbuf, "%%xmm%d", rm + add);
5175 }
5176 else
5177 sprintf (scratchbuf, "%%mm%d", rm);
5178 oappend (scratchbuf + intel_syntax);
5179 }
5180
5181 /* cvt* are the only instructions in sse2 which have
5182 both SSE and MMX operands and also have 0x66 prefix
5183 in their opcode. 0x66 was originally used to differentiate
5184 between SSE and MMX instruction(operands). So we have to handle the
5185 cvt* separately using OP_EMC and OP_MXC */
5186 static void
5187 OP_EMC (int bytemode, int sizeflag)
5188 {
5189 if (mod != 3)
5190 {
5191 if (intel_syntax && bytemode == v_mode)
5192 {
5193 bytemode = (prefixes & PREFIX_DATA) ? x_mode : q_mode;
5194 used_prefixes |= (prefixes & PREFIX_DATA);
5195 }
5196 OP_E (bytemode, sizeflag);
5197 return;
5198 }
5199
5200 /* Skip mod/rm byte. */
5201 MODRM_CHECK;
5202 codep++;
5203 used_prefixes |= (prefixes & PREFIX_DATA);
5204 sprintf (scratchbuf, "%%mm%d", rm);
5205 oappend (scratchbuf + intel_syntax);
5206 }
5207
5208 static void
5209 OP_MXC (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5210 {
5211 used_prefixes |= (prefixes & PREFIX_DATA);
5212 sprintf (scratchbuf, "%%mm%d", reg);
5213 oappend (scratchbuf + intel_syntax);
5214 }
5215
5216 static void
5217 OP_EX (int bytemode, int sizeflag)
5218 {
5219 int add = 0;
5220 if (mod != 3)
5221 {
5222 if (intel_syntax && bytemode == v_mode)
5223 {
5224 switch (prefixes & (PREFIX_DATA|PREFIX_REPZ|PREFIX_REPNZ))
5225 {
5226 case 0: bytemode = x_mode; break;
5227 case PREFIX_REPZ: bytemode = d_mode; used_prefixes |= PREFIX_REPZ; break;
5228 case PREFIX_DATA: bytemode = x_mode; used_prefixes |= PREFIX_DATA; break;
5229 case PREFIX_REPNZ: bytemode = q_mode; used_prefixes |= PREFIX_REPNZ; break;
5230 default: bytemode = 0; break;
5231 }
5232 }
5233 OP_E (bytemode, sizeflag);
5234 return;
5235 }
5236 USED_REX (REX_EXTZ);
5237 if (rex & REX_EXTZ)
5238 add = 8;
5239
5240 /* Skip mod/rm byte. */
5241 MODRM_CHECK;
5242 codep++;
5243 sprintf (scratchbuf, "%%xmm%d", rm + add);
5244 oappend (scratchbuf + intel_syntax);
5245 }
5246
5247 static void
5248 OP_MS (int bytemode, int sizeflag)
5249 {
5250 if (mod == 3)
5251 OP_EM (bytemode, sizeflag);
5252 else
5253 BadOp ();
5254 }
5255
5256 static void
5257 OP_XS (int bytemode, int sizeflag)
5258 {
5259 if (mod == 3)
5260 OP_EX (bytemode, sizeflag);
5261 else
5262 BadOp ();
5263 }
5264
5265 static void
5266 OP_M (int bytemode, int sizeflag)
5267 {
5268 if (mod == 3)
5269 /* bad bound,lea,lds,les,lfs,lgs,lss,cmpxchg8b,vmptrst modrm */
5270 BadOp ();
5271 else
5272 OP_E (bytemode, sizeflag);
5273 }
5274
5275 static void
5276 OP_0f07 (int bytemode, int sizeflag)
5277 {
5278 if (mod != 3 || rm != 0)
5279 BadOp ();
5280 else
5281 OP_E (bytemode, sizeflag);
5282 }
5283
5284 static void
5285 OP_0fae (int bytemode, int sizeflag)
5286 {
5287 if (mod == 3)
5288 {
5289 if (reg == 7)
5290 strcpy (obuf + strlen (obuf) - sizeof ("clflush") + 1, "sfence");
5291
5292 if (reg < 5 || rm != 0)
5293 {
5294 BadOp (); /* bad sfence, mfence, or lfence */
5295 return;
5296 }
5297 }
5298 else if (reg != 7)
5299 {
5300 BadOp (); /* bad clflush */
5301 return;
5302 }
5303
5304 OP_E (bytemode, sizeflag);
5305 }
5306
5307 /* NOP is an alias of "xchg %ax,%ax" in 16bit mode, "xchg %eax,%eax" in
5308 32bit mode and "xchg %rax,%rax" in 64bit mode. NOP with REPZ prefix
5309 is called PAUSE. We display "xchg %ax,%ax" instead of "data16 nop".
5310 */
5311
5312 static void
5313 NOP_Fixup1 (int bytemode, int sizeflag)
5314 {
5315 if (prefixes == PREFIX_REPZ)
5316 strcpy (obuf, "pause");
5317 else if (prefixes == PREFIX_DATA
5318 || ((rex & REX_MODE64) && rex != 0x48))
5319 OP_REG (bytemode, sizeflag);
5320 else
5321 strcpy (obuf, "nop");
5322 }
5323
5324 static void
5325 NOP_Fixup2 (int bytemode, int sizeflag)
5326 {
5327 if (prefixes == PREFIX_DATA
5328 || ((rex & REX_MODE64) && rex != 0x48))
5329 OP_IMREG (bytemode, sizeflag);
5330 }
5331
5332 static const char *const Suffix3DNow[] = {
5333 /* 00 */ NULL, NULL, NULL, NULL,
5334 /* 04 */ NULL, NULL, NULL, NULL,
5335 /* 08 */ NULL, NULL, NULL, NULL,
5336 /* 0C */ "pi2fw", "pi2fd", NULL, NULL,
5337 /* 10 */ NULL, NULL, NULL, NULL,
5338 /* 14 */ NULL, NULL, NULL, NULL,
5339 /* 18 */ NULL, NULL, NULL, NULL,
5340 /* 1C */ "pf2iw", "pf2id", NULL, NULL,
5341 /* 20 */ NULL, NULL, NULL, NULL,
5342 /* 24 */ NULL, NULL, NULL, NULL,
5343 /* 28 */ NULL, NULL, NULL, NULL,
5344 /* 2C */ NULL, NULL, NULL, NULL,
5345 /* 30 */ NULL, NULL, NULL, NULL,
5346 /* 34 */ NULL, NULL, NULL, NULL,
5347 /* 38 */ NULL, NULL, NULL, NULL,
5348 /* 3C */ NULL, NULL, NULL, NULL,
5349 /* 40 */ NULL, NULL, NULL, NULL,
5350 /* 44 */ NULL, NULL, NULL, NULL,
5351 /* 48 */ NULL, NULL, NULL, NULL,
5352 /* 4C */ NULL, NULL, NULL, NULL,
5353 /* 50 */ NULL, NULL, NULL, NULL,
5354 /* 54 */ NULL, NULL, NULL, NULL,
5355 /* 58 */ NULL, NULL, NULL, NULL,
5356 /* 5C */ NULL, NULL, NULL, NULL,
5357 /* 60 */ NULL, NULL, NULL, NULL,
5358 /* 64 */ NULL, NULL, NULL, NULL,
5359 /* 68 */ NULL, NULL, NULL, NULL,
5360 /* 6C */ NULL, NULL, NULL, NULL,
5361 /* 70 */ NULL, NULL, NULL, NULL,
5362 /* 74 */ NULL, NULL, NULL, NULL,
5363 /* 78 */ NULL, NULL, NULL, NULL,
5364 /* 7C */ NULL, NULL, NULL, NULL,
5365 /* 80 */ NULL, NULL, NULL, NULL,
5366 /* 84 */ NULL, NULL, NULL, NULL,
5367 /* 88 */ NULL, NULL, "pfnacc", NULL,
5368 /* 8C */ NULL, NULL, "pfpnacc", NULL,
5369 /* 90 */ "pfcmpge", NULL, NULL, NULL,
5370 /* 94 */ "pfmin", NULL, "pfrcp", "pfrsqrt",
5371 /* 98 */ NULL, NULL, "pfsub", NULL,
5372 /* 9C */ NULL, NULL, "pfadd", NULL,
5373 /* A0 */ "pfcmpgt", NULL, NULL, NULL,
5374 /* A4 */ "pfmax", NULL, "pfrcpit1", "pfrsqit1",
5375 /* A8 */ NULL, NULL, "pfsubr", NULL,
5376 /* AC */ NULL, NULL, "pfacc", NULL,
5377 /* B0 */ "pfcmpeq", NULL, NULL, NULL,
5378 /* B4 */ "pfmul", NULL, "pfrcpit2", "pfmulhrw",
5379 /* B8 */ NULL, NULL, NULL, "pswapd",
5380 /* BC */ NULL, NULL, NULL, "pavgusb",
5381 /* C0 */ NULL, NULL, NULL, NULL,
5382 /* C4 */ NULL, NULL, NULL, NULL,
5383 /* C8 */ NULL, NULL, NULL, NULL,
5384 /* CC */ NULL, NULL, NULL, NULL,
5385 /* D0 */ NULL, NULL, NULL, NULL,
5386 /* D4 */ NULL, NULL, NULL, NULL,
5387 /* D8 */ NULL, NULL, NULL, NULL,
5388 /* DC */ NULL, NULL, NULL, NULL,
5389 /* E0 */ NULL, NULL, NULL, NULL,
5390 /* E4 */ NULL, NULL, NULL, NULL,
5391 /* E8 */ NULL, NULL, NULL, NULL,
5392 /* EC */ NULL, NULL, NULL, NULL,
5393 /* F0 */ NULL, NULL, NULL, NULL,
5394 /* F4 */ NULL, NULL, NULL, NULL,
5395 /* F8 */ NULL, NULL, NULL, NULL,
5396 /* FC */ NULL, NULL, NULL, NULL,
5397 };
5398
5399 static void
5400 OP_3DNowSuffix (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5401 {
5402 const char *mnemonic;
5403
5404 FETCH_DATA (the_info, codep + 1);
5405 /* AMD 3DNow! instructions are specified by an opcode suffix in the
5406 place where an 8-bit immediate would normally go. ie. the last
5407 byte of the instruction. */
5408 obufp = obuf + strlen (obuf);
5409 mnemonic = Suffix3DNow[*codep++ & 0xff];
5410 if (mnemonic)
5411 oappend (mnemonic);
5412 else
5413 {
5414 /* Since a variable sized modrm/sib chunk is between the start
5415 of the opcode (0x0f0f) and the opcode suffix, we need to do
5416 all the modrm processing first, and don't know until now that
5417 we have a bad opcode. This necessitates some cleaning up. */
5418 op1out[0] = '\0';
5419 op2out[0] = '\0';
5420 BadOp ();
5421 }
5422 }
5423
5424 static const char *simd_cmp_op[] = {
5425 "eq",
5426 "lt",
5427 "le",
5428 "unord",
5429 "neq",
5430 "nlt",
5431 "nle",
5432 "ord"
5433 };
5434
5435 static void
5436 OP_SIMD_Suffix (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5437 {
5438 unsigned int cmp_type;
5439
5440 FETCH_DATA (the_info, codep + 1);
5441 obufp = obuf + strlen (obuf);
5442 cmp_type = *codep++ & 0xff;
5443 if (cmp_type < 8)
5444 {
5445 char suffix1 = 'p', suffix2 = 's';
5446 used_prefixes |= (prefixes & PREFIX_REPZ);
5447 if (prefixes & PREFIX_REPZ)
5448 suffix1 = 's';
5449 else
5450 {
5451 used_prefixes |= (prefixes & PREFIX_DATA);
5452 if (prefixes & PREFIX_DATA)
5453 suffix2 = 'd';
5454 else
5455 {
5456 used_prefixes |= (prefixes & PREFIX_REPNZ);
5457 if (prefixes & PREFIX_REPNZ)
5458 suffix1 = 's', suffix2 = 'd';
5459 }
5460 }
5461 sprintf (scratchbuf, "cmp%s%c%c",
5462 simd_cmp_op[cmp_type], suffix1, suffix2);
5463 used_prefixes |= (prefixes & PREFIX_REPZ);
5464 oappend (scratchbuf);
5465 }
5466 else
5467 {
5468 /* We have a bad extension byte. Clean up. */
5469 op1out[0] = '\0';
5470 op2out[0] = '\0';
5471 BadOp ();
5472 }
5473 }
5474
5475 static void
5476 SIMD_Fixup (int extrachar, int sizeflag ATTRIBUTE_UNUSED)
5477 {
5478 /* Change movlps/movhps to movhlps/movlhps for 2 register operand
5479 forms of these instructions. */
5480 if (mod == 3)
5481 {
5482 char *p = obuf + strlen (obuf);
5483 *(p + 1) = '\0';
5484 *p = *(p - 1);
5485 *(p - 1) = *(p - 2);
5486 *(p - 2) = *(p - 3);
5487 *(p - 3) = extrachar;
5488 }
5489 }
5490
5491 static void
5492 PNI_Fixup (int extrachar ATTRIBUTE_UNUSED, int sizeflag)
5493 {
5494 if (mod == 3 && reg == 1 && rm <= 1)
5495 {
5496 /* Override "sidt". */
5497 size_t olen = strlen (obuf);
5498 char *p = obuf + olen - 4;
5499 const char **names = (address_mode == mode_64bit
5500 ? names64 : names32);
5501
5502 /* We might have a suffix when disassembling with -Msuffix. */
5503 if (*p == 'i')
5504 --p;
5505
5506 /* Remove "addr16/addr32" if we aren't in Intel mode. */
5507 if (!intel_syntax
5508 && (prefixes & PREFIX_ADDR)
5509 && olen >= (4 + 7)
5510 && *(p - 1) == ' '
5511 && CONST_STRNEQ (p - 7, "addr")
5512 && (CONST_STRNEQ (p - 3, "16")
5513 || CONST_STRNEQ (p - 3, "32")))
5514 p -= 7;
5515
5516 if (rm)
5517 {
5518 /* mwait %eax,%ecx */
5519 strcpy (p, "mwait");
5520 if (!intel_syntax)
5521 strcpy (op1out, names[0]);
5522 }
5523 else
5524 {
5525 /* monitor %eax,%ecx,%edx" */
5526 strcpy (p, "monitor");
5527 if (!intel_syntax)
5528 {
5529 const char **op1_names;
5530 if (!(prefixes & PREFIX_ADDR))
5531 op1_names = (address_mode == mode_16bit
5532 ? names16 : names);
5533 else
5534 {
5535 op1_names = (address_mode != mode_32bit
5536 ? names32 : names16);
5537 used_prefixes |= PREFIX_ADDR;
5538 }
5539 strcpy (op1out, op1_names[0]);
5540 strcpy (op3out, names[2]);
5541 }
5542 }
5543 if (!intel_syntax)
5544 {
5545 strcpy (op2out, names[1]);
5546 two_source_ops = 1;
5547 }
5548
5549 codep++;
5550 }
5551 else
5552 OP_M (0, sizeflag);
5553 }
5554
5555 static void
5556 SVME_Fixup (int bytemode, int sizeflag)
5557 {
5558 const char *alt;
5559 char *p;
5560
5561 switch (*codep)
5562 {
5563 case 0xd8:
5564 alt = "vmrun";
5565 break;
5566 case 0xd9:
5567 alt = "vmmcall";
5568 break;
5569 case 0xda:
5570 alt = "vmload";
5571 break;
5572 case 0xdb:
5573 alt = "vmsave";
5574 break;
5575 case 0xdc:
5576 alt = "stgi";
5577 break;
5578 case 0xdd:
5579 alt = "clgi";
5580 break;
5581 case 0xde:
5582 alt = "skinit";
5583 break;
5584 case 0xdf:
5585 alt = "invlpga";
5586 break;
5587 default:
5588 OP_M (bytemode, sizeflag);
5589 return;
5590 }
5591 /* Override "lidt". */
5592 p = obuf + strlen (obuf) - 4;
5593 /* We might have a suffix. */
5594 if (*p == 'i')
5595 --p;
5596 strcpy (p, alt);
5597 if (!(prefixes & PREFIX_ADDR))
5598 {
5599 ++codep;
5600 return;
5601 }
5602 used_prefixes |= PREFIX_ADDR;
5603 switch (*codep++)
5604 {
5605 case 0xdf:
5606 strcpy (op2out, names32[1]);
5607 two_source_ops = 1;
5608 /* Fall through. */
5609 case 0xd8:
5610 case 0xda:
5611 case 0xdb:
5612 *obufp++ = open_char;
5613 if (address_mode == mode_64bit || (sizeflag & AFLAG))
5614 alt = names32[0];
5615 else
5616 alt = names16[0];
5617 strcpy (obufp, alt);
5618 obufp += strlen (alt);
5619 *obufp++ = close_char;
5620 *obufp = '\0';
5621 break;
5622 }
5623 }
5624
5625 static void
5626 INVLPG_Fixup (int bytemode, int sizeflag)
5627 {
5628 const char *alt;
5629
5630 switch (*codep)
5631 {
5632 case 0xf8:
5633 alt = "swapgs";
5634 break;
5635 case 0xf9:
5636 alt = "rdtscp";
5637 break;
5638 default:
5639 OP_M (bytemode, sizeflag);
5640 return;
5641 }
5642 /* Override "invlpg". */
5643 strcpy (obuf + strlen (obuf) - 6, alt);
5644 codep++;
5645 }
5646
5647 static void
5648 BadOp (void)
5649 {
5650 /* Throw away prefixes and 1st. opcode byte. */
5651 codep = insn_codep + 1;
5652 oappend ("(bad)");
5653 }
5654
5655 static void
5656 VMX_Fixup (int extrachar ATTRIBUTE_UNUSED, int sizeflag)
5657 {
5658 if (mod == 3 && reg == 0 && rm >=1 && rm <= 4)
5659 {
5660 /* Override "sgdt". */
5661 char *p = obuf + strlen (obuf) - 4;
5662
5663 /* We might have a suffix when disassembling with -Msuffix. */
5664 if (*p == 'g')
5665 --p;
5666
5667 switch (rm)
5668 {
5669 case 1:
5670 strcpy (p, "vmcall");
5671 break;
5672 case 2:
5673 strcpy (p, "vmlaunch");
5674 break;
5675 case 3:
5676 strcpy (p, "vmresume");
5677 break;
5678 case 4:
5679 strcpy (p, "vmxoff");
5680 break;
5681 }
5682
5683 codep++;
5684 }
5685 else
5686 OP_E (0, sizeflag);
5687 }
5688
5689 static void
5690 OP_VMX (int bytemode, int sizeflag)
5691 {
5692 used_prefixes |= (prefixes & (PREFIX_DATA | PREFIX_REPZ));
5693 if (prefixes & PREFIX_DATA)
5694 strcpy (obuf, "vmclear");
5695 else if (prefixes & PREFIX_REPZ)
5696 strcpy (obuf, "vmxon");
5697 else
5698 strcpy (obuf, "vmptrld");
5699 OP_E (bytemode, sizeflag);
5700 }
5701
5702 static void
5703 REP_Fixup (int bytemode, int sizeflag)
5704 {
5705 /* The 0xf3 prefix should be displayed as "rep" for ins, outs, movs,
5706 lods and stos. */
5707 size_t ilen = 0;
5708
5709 if (prefixes & PREFIX_REPZ)
5710 switch (*insn_codep)
5711 {
5712 case 0x6e: /* outsb */
5713 case 0x6f: /* outsw/outsl */
5714 case 0xa4: /* movsb */
5715 case 0xa5: /* movsw/movsl/movsq */
5716 if (!intel_syntax)
5717 ilen = 5;
5718 else
5719 ilen = 4;
5720 break;
5721 case 0xaa: /* stosb */
5722 case 0xab: /* stosw/stosl/stosq */
5723 case 0xac: /* lodsb */
5724 case 0xad: /* lodsw/lodsl/lodsq */
5725 if (!intel_syntax && (sizeflag & SUFFIX_ALWAYS))
5726 ilen = 5;
5727 else
5728 ilen = 4;
5729 break;
5730 case 0x6c: /* insb */
5731 case 0x6d: /* insl/insw */
5732 if (!intel_syntax)
5733 ilen = 4;
5734 else
5735 ilen = 3;
5736 break;
5737 default:
5738 abort ();
5739 break;
5740 }
5741
5742 if (ilen != 0)
5743 {
5744 size_t olen;
5745 char *p;
5746
5747 olen = strlen (obuf);
5748 p = obuf + olen - ilen - 1 - 4;
5749 /* Handle "repz [addr16|addr32]". */
5750 if ((prefixes & PREFIX_ADDR))
5751 p -= 1 + 6;
5752
5753 memmove (p + 3, p + 4, olen - (p + 3 - obuf));
5754 }
5755
5756 switch (bytemode)
5757 {
5758 case al_reg:
5759 case eAX_reg:
5760 case indir_dx_reg:
5761 OP_IMREG (bytemode, sizeflag);
5762 break;
5763 case eDI_reg:
5764 OP_ESreg (bytemode, sizeflag);
5765 break;
5766 case eSI_reg:
5767 OP_DSreg (bytemode, sizeflag);
5768 break;
5769 default:
5770 abort ();
5771 break;
5772 }
5773 }
5774
5775 static void
5776 CMPXCHG8B_Fixup (int bytemode, int sizeflag)
5777 {
5778 USED_REX (REX_MODE64);
5779 if (rex & REX_MODE64)
5780 {
5781 /* Change cmpxchg8b to cmpxchg16b. */
5782 char *p = obuf + strlen (obuf) - 2;
5783 strcpy (p, "16b");
5784 bytemode = o_mode;
5785 }
5786 OP_M (bytemode, sizeflag);
5787 }