disas/i386.c

   1 /* opcodes/i386-dis.c r1.126 */
   2 /* Print i386 instructions for GDB, the GNU debugger.
   3    Copyright 1988, 1989, 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
   4    2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 2 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, see <http://www.gnu.org/licenses/>. */
  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 <stdlib.h>
  35 #include "disas/bfd.h"
  36 /* include/opcode/i386.h r1.78 */
  37
  38 /* opcode/i386.h -- Intel 80386 opcode macros
  39    Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
  40    2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
  41    Free Software Foundation, Inc.
  42
  43    This file is part of GAS, the GNU Assembler, and GDB, the GNU Debugger.
  44
  45    This program is free software; you can redistribute it and/or modify
  46    it under the terms of the GNU General Public License as published by
  47    the Free Software Foundation; either version 2 of the License, or
  48    (at your option) any later version.
  49
  50    This program is distributed in the hope that it will be useful,
  51    but WITHOUT ANY WARRANTY; without even the implied warranty of
  52    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  53    GNU General Public License for more details.
  54
  55    You should have received a copy of the GNU General Public License
  56    along with this program; if not, see <http://www.gnu.org/licenses/>.  */
  57
  58 /* The SystemV/386 SVR3.2 assembler, and probably all AT&T derived
  59    ix86 Unix assemblers, generate floating point instructions with
  60    reversed source and destination registers in certain cases.
  61    Unfortunately, gcc and possibly many other programs use this
  62    reversed syntax, so we're stuck with it.
  63
  64    eg. `fsub %st(3),%st' results in st = st - st(3) as expected, but
  65    `fsub %st,%st(3)' results in st(3) = st - st(3), rather than
  66    the expected st(3) = st(3) - st
  67
  68    This happens with all the non-commutative arithmetic floating point
  69    operations with two register operands, where the source register is
  70    %st, and destination register is %st(i).
  71
  72    The affected opcode map is dceX, dcfX, deeX, defX.  */
  73
  74 #ifndef SYSV386_COMPAT
  75 /* Set non-zero for broken, compatible instructions.  Set to zero for
  76    non-broken opcodes at your peril.  gcc generates SystemV/386
  77    compatible instructions.  */
  78 #define SYSV386_COMPAT 1
  79 #endif
  80 #ifndef OLDGCC_COMPAT
  81 /* Set non-zero to cater for old (<= 2.8.1) versions of gcc that could
  82    generate nonsense fsubp, fsubrp, fdivp and fdivrp with operands
  83    reversed.  */
  84 #define OLDGCC_COMPAT SYSV386_COMPAT
  85 #endif
  86
  87 #define MOV_AX_DISP32 0xa0
  88 #define POP_SEG_SHORT 0x07
  89 #define JUMP_PC_RELATIVE 0xeb
  90 #define INT_OPCODE  0xcd
  91 #define INT3_OPCODE 0xcc
  92 /* The opcode for the fwait instruction, which disassembler treats as a
  93    prefix when it can.  */
  94 #define FWAIT_OPCODE 0x9b
  95 #define ADDR_PREFIX_OPCODE 0x67
  96 #define DATA_PREFIX_OPCODE 0x66
  97 #define LOCK_PREFIX_OPCODE 0xf0
  98 #define CS_PREFIX_OPCODE 0x2e
  99 #define DS_PREFIX_OPCODE 0x3e
 100 #define ES_PREFIX_OPCODE 0x26
 101 #define FS_PREFIX_OPCODE 0x64
 102 #define GS_PREFIX_OPCODE 0x65
 103 #define SS_PREFIX_OPCODE 0x36
 104 #define REPNE_PREFIX_OPCODE 0xf2
 105 #define REPE_PREFIX_OPCODE  0xf3
 106
 107 #define TWO_BYTE_OPCODE_ESCAPE 0x0f
 108 #define NOP_OPCODE (char) 0x90
 109
 110 /* register numbers */
 111 #define EBP_REG_NUM 5
 112 #define ESP_REG_NUM 4
 113
 114 /* modrm_byte.regmem for twobyte escape */
 115 #define ESCAPE_TO_TWO_BYTE_ADDRESSING ESP_REG_NUM
 116 /* index_base_byte.index for no index register addressing */
 117 #define NO_INDEX_REGISTER ESP_REG_NUM
 118 /* index_base_byte.base for no base register addressing */
 119 #define NO_BASE_REGISTER EBP_REG_NUM
 120 #define NO_BASE_REGISTER_16 6
 121
 122 /* modrm.mode = REGMEM_FIELD_HAS_REG when a register is in there */
 123 #define REGMEM_FIELD_HAS_REG 0x3/* always = 0x3 */
 124 #define REGMEM_FIELD_HAS_MEM (~REGMEM_FIELD_HAS_REG)
 125
 126 /* x86-64 extension prefix.  */
 127 #define REX_OPCODE      0x40
 128
 129 /* Indicates 64 bit operand size.  */
 130 #define REX_W   8
 131 /* High extension to reg field of modrm byte.  */
 132 #define REX_R   4
 133 /* High extension to SIB index field.  */
 134 #define REX_X   2
 135 /* High extension to base field of modrm or SIB, or reg field of opcode.  */
 136 #define REX_B   1
 137
 138 /* max operands per insn */
 139 #define MAX_OPERANDS 4
 140
 141 /* max immediates per insn (lcall, ljmp, insertq, extrq) */
 142 #define MAX_IMMEDIATE_OPERANDS 2
 143
 144 /* max memory refs per insn (string ops) */
 145 #define MAX_MEMORY_OPERANDS 2
 146
 147 /* max size of insn mnemonics.  */
 148 #define MAX_MNEM_SIZE 16
 149
 150 /* max size of register name in insn mnemonics.  */
 151 #define MAX_REG_NAME_SIZE 8
 152
 153 /* opcodes/i386-dis.c r1.126 */
 154 #include "qemu-common.h"
 155
 156 #include <setjmp.h>
 157
 158 static int fetch_data2(struct disassemble_info *, bfd_byte *);
 159 static int fetch_data(struct disassemble_info *, bfd_byte *);
 160 static void ckprefix (void);
 161 static const char *prefix_name (int, int);
 162 static int print_insn (bfd_vma, disassemble_info *);
 163 static void dofloat (int);
 164 static void OP_ST (int, int);
 165 static void OP_STi (int, int);
 166 static int putop (const char *, int);
 167 static void oappend (const char *);
 168 static void append_seg (void);
 169 static void OP_indirE (int, int);
 170 static void print_operand_value (char *buf, size_t bufsize, int hex, bfd_vma disp);
 171 static void print_displacement (char *, bfd_vma);
 172 static void OP_E (int, int);
 173 static void OP_G (int, int);
 174 static bfd_vma get64 (void);
 175 static bfd_signed_vma get32 (void);
 176 static bfd_signed_vma get32s (void);
 177 static int get16 (void);
 178 static void set_op (bfd_vma, int);
 179 static void OP_REG (int, int);
 180 static void OP_IMREG (int, int);
 181 static void OP_I (int, int);
 182 static void OP_I64 (int, int);
 183 static void OP_sI (int, int);
 184 static void OP_J (int, int);
 185 static void OP_SEG (int, int);
 186 static void OP_DIR (int, int);
 187 static void OP_OFF (int, int);
 188 static void OP_OFF64 (int, int);
 189 static void ptr_reg (int, int);
 190 static void OP_ESreg (int, int);
 191 static void OP_DSreg (int, int);
 192 static void OP_C (int, int);
 193 static void OP_D (int, int);
 194 static void OP_T (int, int);
 195 static void OP_R (int, int);
 196 static void OP_MMX (int, int);
 197 static void OP_XMM (int, int);
 198 static void OP_EM (int, int);
 199 static void OP_EX (int, int);
 200 static void OP_EMC (int,int);
 201 static void OP_MXC (int,int);
 202 static void OP_MS (int, int);
 203 static void OP_XS (int, int);
 204 static void OP_M (int, int);
 205 static void OP_VMX (int, int);
 206 static void OP_0fae (int, int);
 207 static void OP_0f07 (int, int);
 208 static void NOP_Fixup1 (int, int);
 209 static void NOP_Fixup2 (int, int);
 210 static void OP_3DNowSuffix (int, int);
 211 static void OP_SIMD_Suffix (int, int);
 212 static void SIMD_Fixup (int, int);
 213 static void PNI_Fixup (int, int);
 214 static void SVME_Fixup (int, int);
 215 static void INVLPG_Fixup (int, int);
 216 static void BadOp (void);
 217 static void VMX_Fixup (int, int);
 218 static void REP_Fixup (int, int);
 219 static void CMPXCHG8B_Fixup (int, int);
 220 static void XMM_Fixup (int, int);
 221 static void CRC32_Fixup (int, int);
 222
 223 struct dis_private {
 224   /* Points to first byte not fetched.  */
 225   bfd_byte *max_fetched;
 226   bfd_byte the_buffer[MAX_MNEM_SIZE];
 227   bfd_vma insn_start;
 228   int orig_sizeflag;
 229   jmp_buf bailout;
 230 };
 231
 232 enum address_mode
 233 {
 234   mode_16bit,
 235   mode_32bit,
 236   mode_64bit
 237 };
 238
 239 static enum address_mode address_mode;
 240
 241 /* Flags for the prefixes for the current instruction.  See below.  */
 242 static int prefixes;
 243
 244 /* REX prefix the current instruction.  See below.  */
 245 static int rex;
 246 /* Bits of REX we've already used.  */
 247 static int rex_used;
 248 /* Mark parts used in the REX prefix.  When we are testing for
 249    empty prefix (for 8bit register REX extension), just mask it
 250    out.  Otherwise test for REX bit is excuse for existence of REX
 251    only in case value is nonzero.  */
 252 #define USED_REX(value)                                 \
 253   {                                                     \
 254     if (value)                                          \
 255       {                                                 \
 256         if ((rex & value))                              \
 257           rex_used |= (value) | REX_OPCODE;             \
 258       }                                                 \
 259     else                                                \
 260       rex_used |= REX_OPCODE;                           \
 261   }
 262
 263 /* Flags for prefixes which we somehow handled when printing the
 264    current instruction.  */
 265 static int used_prefixes;
 266
 267 /* Flags stored in PREFIXES.  */
 268 #define PREFIX_REPZ 1
 269 #define PREFIX_REPNZ 2
 270 #define PREFIX_LOCK 4
 271 #define PREFIX_CS 8
 272 #define PREFIX_SS 0x10
 273 #define PREFIX_DS 0x20
 274 #define PREFIX_ES 0x40
 275 #define PREFIX_FS 0x80
 276 #define PREFIX_GS 0x100
 277 #define PREFIX_DATA 0x200
 278 #define PREFIX_ADDR 0x400
 279 #define PREFIX_FWAIT 0x800
 280
 281 /* Make sure that bytes from INFO->PRIVATE_DATA->BUFFER (inclusive)
 282    to ADDR (exclusive) are valid.  Returns 1 for success, longjmps
 283    on error.  */
 284 static int
 285 fetch_data2(struct disassemble_info *info, bfd_byte *addr)
 286 {
 287   int status;
 288   struct dis_private *priv = (struct dis_private *) info->private_data;
 289   bfd_vma start = priv->insn_start + (priv->max_fetched - priv->the_buffer);
 290
 291   if (addr <= priv->the_buffer + MAX_MNEM_SIZE)
 292     status = (*info->read_memory_func) (start,
 293                                         priv->max_fetched,
 294                                         addr - priv->max_fetched,
 295                                         info);
 296   else
 297     status = -1;
 298   if (status != 0)
 299     {
 300       /* If we did manage to read at least one byte, then
 301          print_insn_i386 will do something sensible.  Otherwise, print
 302          an error.  We do that here because this is where we know
 303          STATUS.  */
 304       if (priv->max_fetched == priv->the_buffer)
 305         (*info->memory_error_func) (status, start, info);
 306       longjmp (priv->bailout, 1);
 307     }
 308   else
 309     priv->max_fetched = addr;
 310   return 1;
 311 }
 312
 313 static int
 314 fetch_data(struct disassemble_info *info, bfd_byte *addr)
 315 {
 316     if (addr <= ((struct dis_private *) (info->private_data))->max_fetched) {
 317         return 1;
 318     } else {
 319         return fetch_data2(info, addr);
 320     }
 321 }
 322
 323
 324 #define XX { NULL, 0 }
 325
 326 #define Eb { OP_E, b_mode }
 327 #define Ev { OP_E, v_mode }
 328 #define Ed { OP_E, d_mode }
 329 #define Edq { OP_E, dq_mode }
 330 #define Edqw { OP_E, dqw_mode }
 331 #define Edqb { OP_E, dqb_mode }
 332 #define Edqd { OP_E, dqd_mode }
 333 #define indirEv { OP_indirE, stack_v_mode }
 334 #define indirEp { OP_indirE, f_mode }
 335 #define stackEv { OP_E, stack_v_mode }
 336 #define Em { OP_E, m_mode }
 337 #define Ew { OP_E, w_mode }
 338 #define M { OP_M, 0 }           /* lea, lgdt, etc. */
 339 #define Ma { OP_M, v_mode }
 340 #define Mp { OP_M, f_mode }             /* 32 or 48 bit memory operand for LDS, LES etc */
 341 #define Mq { OP_M, q_mode }
 342 #define Gb { OP_G, b_mode }
 343 #define Gv { OP_G, v_mode }
 344 #define Gd { OP_G, d_mode }
 345 #define Gdq { OP_G, dq_mode }
 346 #define Gm { OP_G, m_mode }
 347 #define Gw { OP_G, w_mode }
 348 #define Rd { OP_R, d_mode }
 349 #define Rm { OP_R, m_mode }
 350 #define Ib { OP_I, b_mode }
 351 #define sIb { OP_sI, b_mode }   /* sign extened byte */
 352 #define Iv { OP_I, v_mode }
 353 #define Iq { OP_I, q_mode }
 354 #define Iv64 { OP_I64, v_mode }
 355 #define Iw { OP_I, w_mode }
 356 #define I1 { OP_I, const_1_mode }
 357 #define Jb { OP_J, b_mode }
 358 #define Jv { OP_J, v_mode }
 359 #define Cm { OP_C, m_mode }
 360 #define Dm { OP_D, m_mode }
 361 #define Td { OP_T, d_mode }
 362
 363 #define RMeAX { OP_REG, eAX_reg }
 364 #define RMeBX { OP_REG, eBX_reg }
 365 #define RMeCX { OP_REG, eCX_reg }
 366 #define RMeDX { OP_REG, eDX_reg }
 367 #define RMeSP { OP_REG, eSP_reg }
 368 #define RMeBP { OP_REG, eBP_reg }
 369 #define RMeSI { OP_REG, eSI_reg }
 370 #define RMeDI { OP_REG, eDI_reg }
 371 #define RMrAX { OP_REG, rAX_reg }
 372 #define RMrBX { OP_REG, rBX_reg }
 373 #define RMrCX { OP_REG, rCX_reg }
 374 #define RMrDX { OP_REG, rDX_reg }
 375 #define RMrSP { OP_REG, rSP_reg }
 376 #define RMrBP { OP_REG, rBP_reg }
 377 #define RMrSI { OP_REG, rSI_reg }
 378 #define RMrDI { OP_REG, rDI_reg }
 379 #define RMAL { OP_REG, al_reg }
 380 #define RMAL { OP_REG, al_reg }
 381 #define RMCL { OP_REG, cl_reg }
 382 #define RMDL { OP_REG, dl_reg }
 383 #define RMBL { OP_REG, bl_reg }
 384 #define RMAH { OP_REG, ah_reg }
 385 #define RMCH { OP_REG, ch_reg }
 386 #define RMDH { OP_REG, dh_reg }
 387 #define RMBH { OP_REG, bh_reg }
 388 #define RMAX { OP_REG, ax_reg }
 389 #define RMDX { OP_REG, dx_reg }
 390
 391 #define eAX { OP_IMREG, eAX_reg }
 392 #define eBX { OP_IMREG, eBX_reg }
 393 #define eCX { OP_IMREG, eCX_reg }
 394 #define eDX { OP_IMREG, eDX_reg }
 395 #define eSP { OP_IMREG, eSP_reg }
 396 #define eBP { OP_IMREG, eBP_reg }
 397 #define eSI { OP_IMREG, eSI_reg }
 398 #define eDI { OP_IMREG, eDI_reg }
 399 #define AL { OP_IMREG, al_reg }
 400 #define CL { OP_IMREG, cl_reg }
 401 #define DL { OP_IMREG, dl_reg }
 402 #define BL { OP_IMREG, bl_reg }
 403 #define AH { OP_IMREG, ah_reg }
 404 #define CH { OP_IMREG, ch_reg }
 405 #define DH { OP_IMREG, dh_reg }
 406 #define BH { OP_IMREG, bh_reg }
 407 #define AX { OP_IMREG, ax_reg }
 408 #define DX { OP_IMREG, dx_reg }
 409 #define zAX { OP_IMREG, z_mode_ax_reg }
 410 #define indirDX { OP_IMREG, indir_dx_reg }
 411
 412 #define Sw { OP_SEG, w_mode }
 413 #define Sv { OP_SEG, v_mode }
 414 #define Ap { OP_DIR, 0 }
 415 #define Ob { OP_OFF64, b_mode }
 416 #define Ov { OP_OFF64, v_mode }
 417 #define Xb { OP_DSreg, eSI_reg }
 418 #define Xv { OP_DSreg, eSI_reg }
 419 #define Xz { OP_DSreg, eSI_reg }
 420 #define Yb { OP_ESreg, eDI_reg }
 421 #define Yv { OP_ESreg, eDI_reg }
 422 #define DSBX { OP_DSreg, eBX_reg }
 423
 424 #define es { OP_REG, es_reg }
 425 #define ss { OP_REG, ss_reg }
 426 #define cs { OP_REG, cs_reg }
 427 #define ds { OP_REG, ds_reg }
 428 #define fs { OP_REG, fs_reg }
 429 #define gs { OP_REG, gs_reg }
 430
 431 #define MX { OP_MMX, 0 }
 432 #define XM { OP_XMM, 0 }
 433 #define EM { OP_EM, v_mode }
 434 #define EMd { OP_EM, d_mode }
 435 #define EMq { OP_EM, q_mode }
 436 #define EXd { OP_EX, d_mode }
 437 #define EXq { OP_EX, q_mode }
 438 #define EXx { OP_EX, x_mode }
 439 #define MS { OP_MS, v_mode }
 440 #define XS { OP_XS, v_mode }
 441 #define EMC { OP_EMC, v_mode }
 442 #define MXC { OP_MXC, 0 }
 443 #define VM { OP_VMX, q_mode }
 444 #define OPSUF { OP_3DNowSuffix, 0 }
 445 #define OPSIMD { OP_SIMD_Suffix, 0 }
 446 #define XMM0 { XMM_Fixup, 0 }
 447
 448 /* Used handle "rep" prefix for string instructions.  */
 449 #define Xbr { REP_Fixup, eSI_reg }
 450 #define Xvr { REP_Fixup, eSI_reg }
 451 #define Ybr { REP_Fixup, eDI_reg }
 452 #define Yvr { REP_Fixup, eDI_reg }
 453 #define Yzr { REP_Fixup, eDI_reg }
 454 #define indirDXr { REP_Fixup, indir_dx_reg }
 455 #define ALr { REP_Fixup, al_reg }
 456 #define eAXr { REP_Fixup, eAX_reg }
 457
 458 #define cond_jump_flag { NULL, cond_jump_mode }
 459 #define loop_jcxz_flag { NULL, loop_jcxz_mode }
 460
 461 /* bits in sizeflag */
 462 #define SUFFIX_ALWAYS 4
 463 #define AFLAG 2
 464 #define DFLAG 1
 465
 466 #define b_mode 1  /* byte operand */
 467 #define v_mode 2  /* operand size depends on prefixes */
 468 #define w_mode 3  /* word operand */
 469 #define d_mode 4  /* double word operand  */
 470 #define q_mode 5  /* quad word operand */
 471 #define t_mode 6  /* ten-byte operand */
 472 #define x_mode 7  /* 16-byte XMM operand */
 473 #define m_mode 8  /* d_mode in 32bit, q_mode in 64bit mode.  */
 474 #define cond_jump_mode 9
 475 #define loop_jcxz_mode 10
 476 #define dq_mode 11 /* operand size depends on REX prefixes.  */
 477 #define dqw_mode 12 /* registers like dq_mode, memory like w_mode.  */
 478 #define f_mode 13 /* 4- or 6-byte pointer operand */
 479 #define const_1_mode 14
 480 #define stack_v_mode 15 /* v_mode for stack-related opcodes.  */
 481 #define z_mode 16 /* non-quad operand size depends on prefixes */
 482 #define o_mode 17  /* 16-byte operand */
 483 #define dqb_mode 18 /* registers like dq_mode, memory like b_mode.  */
 484 #define dqd_mode 19 /* registers like dq_mode, memory like d_mode.  */
 485
 486 #define es_reg 100
 487 #define cs_reg 101
 488 #define ss_reg 102
 489 #define ds_reg 103
 490 #define fs_reg 104
 491 #define gs_reg 105
 492
 493 #define eAX_reg 108
 494 #define eCX_reg 109
 495 #define eDX_reg 110
 496 #define eBX_reg 111
 497 #define eSP_reg 112
 498 #define eBP_reg 113
 499 #define eSI_reg 114
 500 #define eDI_reg 115
 501
 502 #define al_reg 116
 503 #define cl_reg 117
 504 #define dl_reg 118
 505 #define bl_reg 119
 506 #define ah_reg 120
 507 #define ch_reg 121
 508 #define dh_reg 122
 509 #define bh_reg 123
 510
 511 #define ax_reg 124
 512 #define cx_reg 125
 513 #define dx_reg 126
 514 #define bx_reg 127
 515 #define sp_reg 128
 516 #define bp_reg 129
 517 #define si_reg 130
 518 #define di_reg 131
 519
 520 #define rAX_reg 132
 521 #define rCX_reg 133
 522 #define rDX_reg 134
 523 #define rBX_reg 135
 524 #define rSP_reg 136
 525 #define rBP_reg 137
 526 #define rSI_reg 138
 527 #define rDI_reg 139
 528
 529 #define z_mode_ax_reg 149
 530 #define indir_dx_reg 150
 531
 532 #define FLOATCODE 1
 533 #define USE_GROUPS 2
 534 #define USE_PREFIX_USER_TABLE 3
 535 #define X86_64_SPECIAL 4
 536 #define IS_3BYTE_OPCODE 5
 537
 538 #define FLOAT     NULL, { { NULL, FLOATCODE } }
 539
 540 #define GRP1a     NULL, { { NULL, USE_GROUPS }, { NULL,  0 } }
 541 #define GRP1b     NULL, { { NULL, USE_GROUPS }, { NULL,  1 } }
 542 #define GRP1S     NULL, { { NULL, USE_GROUPS }, { NULL,  2 } }
 543 #define GRP1Ss    NULL, { { NULL, USE_GROUPS }, { NULL,  3 } }
 544 #define GRP2b     NULL, { { NULL, USE_GROUPS }, { NULL,  4 } }
 545 #define GRP2S     NULL, { { NULL, USE_GROUPS }, { NULL,  5 } }
 546 #define GRP2b_one NULL, { { NULL, USE_GROUPS }, { NULL,  6 } }
 547 #define GRP2S_one NULL, { { NULL, USE_GROUPS }, { NULL,  7 } }
 548 #define GRP2b_cl  NULL, { { NULL, USE_GROUPS }, { NULL,  8 } }
 549 #define GRP2S_cl  NULL, { { NULL, USE_GROUPS }, { NULL,  9 } }
 550 #define GRP3b     NULL, { { NULL, USE_GROUPS }, { NULL, 10 } }
 551 #define GRP3S     NULL, { { NULL, USE_GROUPS }, { NULL, 11 } }
 552 #define GRP4      NULL, { { NULL, USE_GROUPS }, { NULL, 12 } }
 553 #define GRP5      NULL, { { NULL, USE_GROUPS }, { NULL, 13 } }
 554 #define GRP6      NULL, { { NULL, USE_GROUPS }, { NULL, 14 } }
 555 #define GRP7      NULL, { { NULL, USE_GROUPS }, { NULL, 15 } }
 556 #define GRP8      NULL, { { NULL, USE_GROUPS }, { NULL, 16 } }
 557 #define GRP9      NULL, { { NULL, USE_GROUPS }, { NULL, 17 } }
 558 #define GRP11_C6  NULL, { { NULL, USE_GROUPS }, { NULL, 18 } }
 559 #define GRP11_C7  NULL, { { NULL, USE_GROUPS }, { NULL, 19 } }
 560 #define GRP12     NULL, { { NULL, USE_GROUPS }, { NULL, 20 } }
 561 #define GRP13     NULL, { { NULL, USE_GROUPS }, { NULL, 21 } }
 562 #define GRP14     NULL, { { NULL, USE_GROUPS }, { NULL, 22 } }
 563 #define GRP15     NULL, { { NULL, USE_GROUPS }, { NULL, 23 } }
 564 #define GRP16     NULL, { { NULL, USE_GROUPS }, { NULL, 24 } }
 565 #define GRPAMD    NULL, { { NULL, USE_GROUPS }, { NULL, 25 } }
 566 #define GRPPADLCK1 NULL, { { NULL, USE_GROUPS }, { NULL, 26 } }
 567 #define GRPPADLCK2 NULL, { { NULL, USE_GROUPS }, { NULL, 27 } }
 568
 569 #define PREGRP0   NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL,  0 } }
 570 #define PREGRP1   NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL,  1 } }
 571 #define PREGRP2   NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL,  2 } }
 572 #define PREGRP3   NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL,  3 } }
 573 #define PREGRP4   NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL,  4 } }
 574 #define PREGRP5   NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL,  5 } }
 575 #define PREGRP6   NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL,  6 } }
 576 #define PREGRP7   NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL,  7 } }
 577 #define PREGRP8   NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL,  8 } }
 578 #define PREGRP9   NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL,  9 } }
 579 #define PREGRP10  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 10 } }
 580 #define PREGRP11  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 11 } }
 581 #define PREGRP12  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 12 } }
 582 #define PREGRP13  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 13 } }
 583 #define PREGRP14  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 14 } }
 584 #define PREGRP15  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 15 } }
 585 #define PREGRP16  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 16 } }
 586 #define PREGRP17  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 17 } }
 587 #define PREGRP18  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 18 } }
 588 #define PREGRP19  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 19 } }
 589 #define PREGRP20  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 20 } }
 590 #define PREGRP21  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 21 } }
 591 #define PREGRP22  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 22 } }
 592 #define PREGRP23  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 23 } }
 593 #define PREGRP24  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 24 } }
 594 #define PREGRP25  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 25 } }
 595 #define PREGRP26  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 26 } }
 596 #define PREGRP27  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 27 } }
 597 #define PREGRP28  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 28 } }
 598 #define PREGRP29  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 29 } }
 599 #define PREGRP30  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 30 } }
 600 #define PREGRP31  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 31 } }
 601 #define PREGRP32  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 32 } }
 602 #define PREGRP33  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 33 } }
 603 #define PREGRP34  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 34 } }
 604 #define PREGRP35  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 35 } }
 605 #define PREGRP36  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 36 } }
 606 #define PREGRP37  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 37 } }
 607 #define PREGRP38  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 38 } }
 608 #define PREGRP39  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 39 } }
 609 #define PREGRP40  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 40 } }
 610 #define PREGRP41  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 41 } }
 611 #define PREGRP42  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 42 } }
 612 #define PREGRP43  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 43 } }
 613 #define PREGRP44  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 44 } }
 614 #define PREGRP45  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 45 } }
 615 #define PREGRP46  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 46 } }
 616 #define PREGRP47  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 47 } }
 617 #define PREGRP48  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 48 } }
 618 #define PREGRP49  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 49 } }
 619 #define PREGRP50  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 50 } }
 620 #define PREGRP51  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 51 } }
 621 #define PREGRP52  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 52 } }
 622 #define PREGRP53  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 53 } }
 623 #define PREGRP54  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 54 } }
 624 #define PREGRP55  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 55 } }
 625 #define PREGRP56  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 56 } }
 626 #define PREGRP57  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 57 } }
 627 #define PREGRP58  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 58 } }
 628 #define PREGRP59  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 59 } }
 629 #define PREGRP60  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 60 } }
 630 #define PREGRP61  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 61 } }
 631 #define PREGRP62  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 62 } }
 632 #define PREGRP63  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 63 } }
 633 #define PREGRP64  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 64 } }
 634 #define PREGRP65  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 65 } }
 635 #define PREGRP66  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 66 } }
 636 #define PREGRP67  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 67 } }
 637 #define PREGRP68  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 68 } }
 638 #define PREGRP69  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 69 } }
 639 #define PREGRP70  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 70 } }
 640 #define PREGRP71  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 71 } }
 641 #define PREGRP72  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 72 } }
 642 #define PREGRP73  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 73 } }
 643 #define PREGRP74  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 74 } }
 644 #define PREGRP75  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 75 } }
 645 #define PREGRP76  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 76 } }
 646 #define PREGRP77  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 77 } }
 647 #define PREGRP78  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 78 } }
 648 #define PREGRP79  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 79 } }
 649 #define PREGRP80  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 80 } }
 650 #define PREGRP81  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 81 } }
 651 #define PREGRP82  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 82 } }
 652 #define PREGRP83  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 83 } }
 653 #define PREGRP84  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 84 } }
 654 #define PREGRP85  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 85 } }
 655 #define PREGRP86  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 86 } }
 656 #define PREGRP87  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 87 } }
 657 #define PREGRP88  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 88 } }
 658 #define PREGRP89  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 89 } }
 659 #define PREGRP90  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 90 } }
 660 #define PREGRP91  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 91 } }
 661 #define PREGRP92  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 92 } }
 662 #define PREGRP93  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 93 } }
 663 #define PREGRP94  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 94 } }
 664 #define PREGRP95  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 95 } }
 665 #define PREGRP96  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 96 } }
 666 #define PREGRP97  NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 97 } }
 667
 668
 669 #define X86_64_0  NULL, { { NULL, X86_64_SPECIAL }, { NULL, 0 } }
 670 #define X86_64_1  NULL, { { NULL, X86_64_SPECIAL }, { NULL, 1 } }
 671 #define X86_64_2  NULL, { { NULL, X86_64_SPECIAL }, { NULL, 2 } }
 672 #define X86_64_3  NULL, { { NULL, X86_64_SPECIAL }, { NULL, 3 } }
 673
 674 #define THREE_BYTE_0 NULL, { { NULL, IS_3BYTE_OPCODE }, { NULL, 0 } }
 675 #define THREE_BYTE_1 NULL, { { NULL, IS_3BYTE_OPCODE }, { NULL, 1 } }
 676
 677 typedef void (*op_rtn) (int bytemode, int sizeflag);
 678
 679 struct dis386 {
 680   const char *name;
 681   struct
 682     {
 683       op_rtn rtn;
 684       int bytemode;
 685     } op[MAX_OPERANDS];
 686 };
 687
 688 /* Upper case letters in the instruction names here are macros.
 689    'A' => print 'b' if no register operands or suffix_always is true
 690    'B' => print 'b' if suffix_always is true
 691    'C' => print 's' or 'l' ('w' or 'd' in Intel mode) depending on operand
 692    .      size prefix
 693    'D' => print 'w' if no register operands or 'w', 'l' or 'q', if
 694    .      suffix_always is true
 695    'E' => print 'e' if 32-bit form of jcxz
 696    'F' => print 'w' or 'l' depending on address size prefix (loop insns)
 697    'G' => print 'w' or 'l' depending on operand size prefix (i/o insns)
 698    'H' => print ",pt" or ",pn" branch hint
 699    'I' => honor following macro letter even in Intel mode (implemented only
 700    .      for some of the macro letters)
 701    'J' => print 'l'
 702    'K' => print 'd' or 'q' if rex prefix is present.
 703    'L' => print 'l' if suffix_always is true
 704    'N' => print 'n' if instruction has no wait "prefix"
 705    'O' => print 'd' or 'o' (or 'q' in Intel mode)
 706    'P' => print 'w', 'l' or 'q' if instruction has an operand size prefix,
 707    .      or suffix_always is true.  print 'q' if rex prefix is present.
 708    'Q' => print 'w', 'l' or 'q' if no register operands or suffix_always
 709    .      is true
 710    'R' => print 'w', 'l' or 'q' ('d' for 'l' and 'e' in Intel mode)
 711    'S' => print 'w', 'l' or 'q' if suffix_always is true
 712    'T' => print 'q' in 64bit mode and behave as 'P' otherwise
 713    'U' => print 'q' in 64bit mode and behave as 'Q' otherwise
 714    'V' => print 'q' in 64bit mode and behave as 'S' otherwise
 715    'W' => print 'b', 'w' or 'l' ('d' in Intel mode)
 716    'X' => print 's', 'd' depending on data16 prefix (for XMM)
 717    'Y' => 'q' if instruction has an REX 64bit overwrite prefix
 718    'Z' => print 'q' in 64bit mode and behave as 'L' otherwise
 719
 720    Many of the above letters print nothing in Intel mode.  See "putop"
 721    for the details.
 722
 723    Braces '{' and '}', and vertical bars '|', indicate alternative
 724    mnemonic strings for AT&T, Intel, X86_64 AT&T, and X86_64 Intel
 725    modes.  In cases where there are only two alternatives, the X86_64
 726    instruction is reserved, and "(bad)" is printed.
 727 */
 728
 729 static const struct dis386 dis386[] = {
 730   /* 00 */
 731   { "addB",             { Eb, Gb } },
 732   { "addS",             { Ev, Gv } },
 733   { "addB",             { Gb, Eb } },
 734   { "addS",             { Gv, Ev } },
 735   { "addB",             { AL, Ib } },
 736   { "addS",             { eAX, Iv } },
 737   { "push{T|}",         { es } },
 738   { "pop{T|}",          { es } },
 739   /* 08 */
 740   { "orB",              { Eb, Gb } },
 741   { "orS",              { Ev, Gv } },
 742   { "orB",              { Gb, Eb } },
 743   { "orS",              { Gv, Ev } },
 744   { "orB",              { AL, Ib } },
 745   { "orS",              { eAX, Iv } },
 746   { "push{T|}",         { cs } },
 747   { "(bad)",            { XX } },       /* 0x0f extended opcode escape */
 748   /* 10 */
 749   { "adcB",             { Eb, Gb } },
 750   { "adcS",             { Ev, Gv } },
 751   { "adcB",             { Gb, Eb } },
 752   { "adcS",             { Gv, Ev } },
 753   { "adcB",             { AL, Ib } },
 754   { "adcS",             { eAX, Iv } },
 755   { "push{T|}",         { ss } },
 756   { "pop{T|}",          { ss } },
 757   /* 18 */
 758   { "sbbB",             { Eb, Gb } },
 759   { "sbbS",             { Ev, Gv } },
 760   { "sbbB",             { Gb, Eb } },
 761   { "sbbS",             { Gv, Ev } },
 762   { "sbbB",             { AL, Ib } },
 763   { "sbbS",             { eAX, Iv } },
 764   { "push{T|}",         { ds } },
 765   { "pop{T|}",          { ds } },
 766   /* 20 */
 767   { "andB",             { Eb, Gb } },
 768   { "andS",             { Ev, Gv } },
 769   { "andB",             { Gb, Eb } },
 770   { "andS",             { Gv, Ev } },
 771   { "andB",             { AL, Ib } },
 772   { "andS",             { eAX, Iv } },
 773   { "(bad)",            { XX } },       /* SEG ES prefix */
 774   { "daa{|}",           { XX } },
 775   /* 28 */
 776   { "subB",             { Eb, Gb } },
 777   { "subS",             { Ev, Gv } },
 778   { "subB",             { Gb, Eb } },
 779   { "subS",             { Gv, Ev } },
 780   { "subB",             { AL, Ib } },
 781   { "subS",             { eAX, Iv } },
 782   { "(bad)",            { XX } },       /* SEG CS prefix */
 783   { "das{|}",           { XX } },
 784   /* 30 */
 785   { "xorB",             { Eb, Gb } },
 786   { "xorS",             { Ev, Gv } },
 787   { "xorB",             { Gb, Eb } },
 788   { "xorS",             { Gv, Ev } },
 789   { "xorB",             { AL, Ib } },
 790   { "xorS",             { eAX, Iv } },
 791   { "(bad)",            { XX } },       /* SEG SS prefix */
 792   { "aaa{|}",           { XX } },
 793   /* 38 */
 794   { "cmpB",             { Eb, Gb } },
 795   { "cmpS",             { Ev, Gv } },
 796   { "cmpB",             { Gb, Eb } },
 797   { "cmpS",             { Gv, Ev } },
 798   { "cmpB",             { AL, Ib } },
 799   { "cmpS",             { eAX, Iv } },
 800   { "(bad)",            { XX } },       /* SEG DS prefix */
 801   { "aas{|}",           { XX } },
 802   /* 40 */
 803   { "inc{S|}",          { RMeAX } },
 804   { "inc{S|}",          { RMeCX } },
 805   { "inc{S|}",          { RMeDX } },
 806   { "inc{S|}",          { RMeBX } },
 807   { "inc{S|}",          { RMeSP } },
 808   { "inc{S|}",          { RMeBP } },
 809   { "inc{S|}",          { RMeSI } },
 810   { "inc{S|}",          { RMeDI } },
 811   /* 48 */
 812   { "dec{S|}",          { RMeAX } },
 813   { "dec{S|}",          { RMeCX } },
 814   { "dec{S|}",          { RMeDX } },
 815   { "dec{S|}",          { RMeBX } },
 816   { "dec{S|}",          { RMeSP } },
 817   { "dec{S|}",          { RMeBP } },
 818   { "dec{S|}",          { RMeSI } },
 819   { "dec{S|}",          { RMeDI } },
 820   /* 50 */
 821   { "pushV",            { RMrAX } },
 822   { "pushV",            { RMrCX } },
 823   { "pushV",            { RMrDX } },
 824   { "pushV",            { RMrBX } },
 825   { "pushV",            { RMrSP } },
 826   { "pushV",            { RMrBP } },
 827   { "pushV",            { RMrSI } },
 828   { "pushV",            { RMrDI } },
 829   /* 58 */
 830   { "popV",             { RMrAX } },
 831   { "popV",             { RMrCX } },
 832   { "popV",             { RMrDX } },
 833   { "popV",             { RMrBX } },
 834   { "popV",             { RMrSP } },
 835   { "popV",             { RMrBP } },
 836   { "popV",             { RMrSI } },
 837   { "popV",             { RMrDI } },
 838   /* 60 */
 839   { X86_64_0 },
 840   { X86_64_1 },
 841   { X86_64_2 },
 842   { X86_64_3 },
 843   { "(bad)",            { XX } },       /* seg fs */
 844   { "(bad)",            { XX } },       /* seg gs */
 845   { "(bad)",            { XX } },       /* op size prefix */
 846   { "(bad)",            { XX } },       /* adr size prefix */
 847   /* 68 */
 848   { "pushT",            { Iq } },
 849   { "imulS",            { Gv, Ev, Iv } },
 850   { "pushT",            { sIb } },
 851   { "imulS",            { Gv, Ev, sIb } },
 852   { "ins{b||b|}",       { Ybr, indirDX } },
 853   { "ins{R||G|}",       { Yzr, indirDX } },
 854   { "outs{b||b|}",      { indirDXr, Xb } },
 855   { "outs{R||G|}",      { indirDXr, Xz } },
 856   /* 70 */
 857   { "joH",              { Jb, XX, cond_jump_flag } },
 858   { "jnoH",             { Jb, XX, cond_jump_flag } },
 859   { "jbH",              { Jb, XX, cond_jump_flag } },
 860   { "jaeH",             { Jb, XX, cond_jump_flag } },
 861   { "jeH",              { Jb, XX, cond_jump_flag } },
 862   { "jneH",             { Jb, XX, cond_jump_flag } },
 863   { "jbeH",             { Jb, XX, cond_jump_flag } },
 864   { "jaH",              { Jb, XX, cond_jump_flag } },
 865   /* 78 */
 866   { "jsH",              { Jb, XX, cond_jump_flag } },
 867   { "jnsH",             { Jb, XX, cond_jump_flag } },
 868   { "jpH",              { Jb, XX, cond_jump_flag } },
 869   { "jnpH",             { Jb, XX, cond_jump_flag } },
 870   { "jlH",              { Jb, XX, cond_jump_flag } },
 871   { "jgeH",             { Jb, XX, cond_jump_flag } },
 872   { "jleH",             { Jb, XX, cond_jump_flag } },
 873   { "jgH",              { Jb, XX, cond_jump_flag } },
 874   /* 80 */
 875   { GRP1b },
 876   { GRP1S },
 877   { "(bad)",            { XX } },
 878   { GRP1Ss },
 879   { "testB",            { Eb, Gb } },
 880   { "testS",            { Ev, Gv } },
 881   { "xchgB",            { Eb, Gb } },
 882   { "xchgS",            { Ev, Gv } },
 883   /* 88 */
 884   { "movB",             { Eb, Gb } },
 885   { "movS",             { Ev, Gv } },
 886   { "movB",             { Gb, Eb } },
 887   { "movS",             { Gv, Ev } },
 888   { "movD",             { Sv, Sw } },
 889   { "leaS",             { Gv, M } },
 890   { "movD",             { Sw, Sv } },
 891   { GRP1a },
 892   /* 90 */
 893   { PREGRP38 },
 894   { "xchgS",            { RMeCX, eAX } },
 895   { "xchgS",            { RMeDX, eAX } },
 896   { "xchgS",            { RMeBX, eAX } },
 897   { "xchgS",            { RMeSP, eAX } },
 898   { "xchgS",            { RMeBP, eAX } },
 899   { "xchgS",            { RMeSI, eAX } },
 900   { "xchgS",            { RMeDI, eAX } },
 901   /* 98 */
 902   { "cW{t||t|}R",       { XX } },
 903   { "cR{t||t|}O",       { XX } },
 904   { "Jcall{T|}",        { Ap } },
 905   { "(bad)",            { XX } },       /* fwait */
 906   { "pushfT",           { XX } },
 907   { "popfT",            { XX } },
 908   { "sahf{|}",          { XX } },
 909   { "lahf{|}",          { XX } },
 910   /* a0 */
 911   { "movB",             { AL, Ob } },
 912   { "movS",             { eAX, Ov } },
 913   { "movB",             { Ob, AL } },
 914   { "movS",             { Ov, eAX } },
 915   { "movs{b||b|}",      { Ybr, Xb } },
 916   { "movs{R||R|}",      { Yvr, Xv } },
 917   { "cmps{b||b|}",      { Xb, Yb } },
 918   { "cmps{R||R|}",      { Xv, Yv } },
 919   /* a8 */
 920   { "testB",            { AL, Ib } },
 921   { "testS",            { eAX, Iv } },
 922   { "stosB",            { Ybr, AL } },
 923   { "stosS",            { Yvr, eAX } },
 924   { "lodsB",            { ALr, Xb } },
 925   { "lodsS",            { eAXr, Xv } },
 926   { "scasB",            { AL, Yb } },
 927   { "scasS",            { eAX, Yv } },
 928   /* b0 */
 929   { "movB",             { RMAL, Ib } },
 930   { "movB",             { RMCL, Ib } },
 931   { "movB",             { RMDL, Ib } },
 932   { "movB",             { RMBL, Ib } },
 933   { "movB",             { RMAH, Ib } },
 934   { "movB",             { RMCH, Ib } },
 935   { "movB",             { RMDH, Ib } },
 936   { "movB",             { RMBH, Ib } },
 937   /* b8 */
 938   { "movS",             { RMeAX, Iv64 } },
 939   { "movS",             { RMeCX, Iv64 } },
 940   { "movS",             { RMeDX, Iv64 } },
 941   { "movS",             { RMeBX, Iv64 } },
 942   { "movS",             { RMeSP, Iv64 } },
 943   { "movS",             { RMeBP, Iv64 } },
 944   { "movS",             { RMeSI, Iv64 } },
 945   { "movS",             { RMeDI, Iv64 } },
 946   /* c0 */
 947   { GRP2b },
 948   { GRP2S },
 949   { "retT",             { Iw } },
 950   { "retT",             { XX } },
 951   { "les{S|}",          { Gv, Mp } },
 952   { "ldsS",             { Gv, Mp } },
 953   { GRP11_C6 },
 954   { GRP11_C7 },
 955   /* c8 */
 956   { "enterT",           { Iw, Ib } },
 957   { "leaveT",           { XX } },
 958   { "lretP",            { Iw } },
 959   { "lretP",            { XX } },
 960   { "int3",             { XX } },
 961   { "int",              { Ib } },
 962   { "into{|}",          { XX } },
 963   { "iretP",            { XX } },
 964   /* d0 */
 965   { GRP2b_one },
 966   { GRP2S_one },
 967   { GRP2b_cl },
 968   { GRP2S_cl },
 969   { "aam{|}",           { sIb } },
 970   { "aad{|}",           { sIb } },
 971   { "(bad)",            { XX } },
 972   { "xlat",             { DSBX } },
 973   /* d8 */
 974   { FLOAT },
 975   { FLOAT },
 976   { FLOAT },
 977   { FLOAT },
 978   { FLOAT },
 979   { FLOAT },
 980   { FLOAT },
 981   { FLOAT },
 982   /* e0 */
 983   { "loopneFH",         { Jb, XX, loop_jcxz_flag } },
 984   { "loopeFH",          { Jb, XX, loop_jcxz_flag } },
 985   { "loopFH",           { Jb, XX, loop_jcxz_flag } },
 986   { "jEcxzH",           { Jb, XX, loop_jcxz_flag } },
 987   { "inB",              { AL, Ib } },
 988   { "inG",              { zAX, Ib } },
 989   { "outB",             { Ib, AL } },
 990   { "outG",             { Ib, zAX } },
 991   /* e8 */
 992   { "callT",            { Jv } },
 993   { "jmpT",             { Jv } },
 994   { "Jjmp{T|}",         { Ap } },
 995   { "jmp",              { Jb } },
 996   { "inB",              { AL, indirDX } },
 997   { "inG",              { zAX, indirDX } },
 998   { "outB",             { indirDX, AL } },
 999   { "outG",             { indirDX, zAX } },
1000   /* f0 */
1001   { "(bad)",            { XX } },       /* lock prefix */
1002   { "icebp",            { XX } },
1003   { "(bad)",            { XX } },       /* repne */
1004   { "(bad)",            { XX } },       /* repz */
1005   { "hlt",              { XX } },
1006   { "cmc",              { XX } },
1007   { GRP3b },
1008   { GRP3S },
1009   /* f8 */
1010   { "clc",              { XX } },
1011   { "stc",              { XX } },
1012   { "cli",              { XX } },
1013   { "sti",              { XX } },
1014   { "cld",              { XX } },
1015   { "std",              { XX } },
1016   { GRP4 },
1017   { GRP5 },
1018 };
1019
1020 static const struct dis386 dis386_twobyte[] = {
1021   /* 00 */
1022   { GRP6 },
1023   { GRP7 },
1024   { "larS",             { Gv, Ew } },
1025   { "lslS",             { Gv, Ew } },
1026   { "(bad)",            { XX } },
1027   { "syscall",          { XX } },
1028   { "clts",             { XX } },
1029   { "sysretP",          { XX } },
1030   /* 08 */
1031   { "invd",             { XX } },
1032   { "wbinvd",           { XX } },
1033   { "(bad)",            { XX } },
1034   { "ud2a",             { XX } },
1035   { "(bad)",            { XX } },
1036   { GRPAMD },
1037   { "femms",            { XX } },
1038   { "",                 { MX, EM, OPSUF } }, /* See OP_3DNowSuffix.  */
1039   /* 10 */
1040   { PREGRP8 },
1041   { PREGRP9 },
1042   { PREGRP30 },
1043   { "movlpX",           { EXq, XM, { SIMD_Fixup, 'h' } } },
1044   { "unpcklpX",         { XM, EXq } },
1045   { "unpckhpX",         { XM, EXq } },
1046   { PREGRP31 },
1047   { "movhpX",           { EXq, XM, { SIMD_Fixup, 'l' } } },
1048   /* 18 */
1049   { GRP16 },
1050   { "(bad)",            { XX } },
1051   { "(bad)",            { XX } },
1052   { "(bad)",            { XX } },
1053   { "(bad)",            { XX } },
1054   { "(bad)",            { XX } },
1055   { "(bad)",            { XX } },
1056   { "nopQ",             { Ev } },
1057   /* 20 */
1058   { "movZ",             { Rm, Cm } },
1059   { "movZ",             { Rm, Dm } },
1060   { "movZ",             { Cm, Rm } },
1061   { "movZ",             { Dm, Rm } },
1062   { "movL",             { Rd, Td } },
1063   { "(bad)",            { XX } },
1064   { "movL",             { Td, Rd } },
1065   { "(bad)",            { XX } },
1066   /* 28 */
1067   { "movapX",           { XM, EXx } },
1068   { "movapX",           { EXx,  XM } },
1069   { PREGRP2 },
1070   { PREGRP33 },
1071   { PREGRP4 },
1072   { PREGRP3 },
1073   { PREGRP93 },
1074   { PREGRP94 },
1075   /* 30 */
1076   { "wrmsr",            { XX } },
1077   { "rdtsc",            { XX } },
1078   { "rdmsr",            { XX } },
1079   { "rdpmc",            { XX } },
1080   { "sysenter",         { XX } },
1081   { "sysexit",          { XX } },
1082   { "(bad)",            { XX } },
1083   { "(bad)",            { XX } },
1084   /* 38 */
1085   { THREE_BYTE_0 },
1086   { "(bad)",            { XX } },
1087   { THREE_BYTE_1 },
1088   { "(bad)",            { XX } },
1089   { "(bad)",            { XX } },
1090   { "(bad)",            { XX } },
1091   { "(bad)",            { XX } },
1092   { "(bad)",            { XX } },
1093   /* 40 */
1094   { "cmovo",            { Gv, Ev } },
1095   { "cmovno",           { Gv, Ev } },
1096   { "cmovb",            { Gv, Ev } },
1097   { "cmovae",           { Gv, Ev } },
1098   { "cmove",            { Gv, Ev } },
1099   { "cmovne",           { Gv, Ev } },
1100   { "cmovbe",           { Gv, Ev } },
1101   { "cmova",            { Gv, Ev } },
1102   /* 48 */
1103   { "cmovs",            { Gv, Ev } },
1104   { "cmovns",           { Gv, Ev } },
1105   { "cmovp",            { Gv, Ev } },
1106   { "cmovnp",           { Gv, Ev } },
1107   { "cmovl",            { Gv, Ev } },
1108   { "cmovge",           { Gv, Ev } },
1109   { "cmovle",           { Gv, Ev } },
1110   { "cmovg",            { Gv, Ev } },
1111   /* 50 */
1112   { "movmskpX",         { Gdq, XS } },
1113   { PREGRP13 },
1114   { PREGRP12 },
1115   { PREGRP11 },
1116   { "andpX",            { XM, EXx } },
1117   { "andnpX",           { XM, EXx } },
1118   { "orpX",             { XM, EXx } },
1119   { "xorpX",            { XM, EXx } },
1120   /* 58 */
1121   { PREGRP0 },
1122   { PREGRP10 },
1123   { PREGRP17 },
1124   { PREGRP16 },
1125   { PREGRP14 },
1126   { PREGRP7 },
1127   { PREGRP5 },
1128   { PREGRP6 },
1129   /* 60 */
1130   { PREGRP95 },
1131   { PREGRP96 },
1132   { PREGRP97 },
1133   { "packsswb",         { MX, EM } },
1134   { "pcmpgtb",          { MX, EM } },
1135   { "pcmpgtw",          { MX, EM } },
1136   { "pcmpgtd",          { MX, EM } },
1137   { "packuswb",         { MX, EM } },
1138   /* 68 */
1139   { "punpckhbw",        { MX, EM } },
1140   { "punpckhwd",        { MX, EM } },
1141   { "punpckhdq",        { MX, EM } },
1142   { "packssdw",         { MX, EM } },
1143   { PREGRP26 },
1144   { PREGRP24 },
1145   { "movd",             { MX, Edq } },
1146   { PREGRP19 },
1147   /* 70 */
1148   { PREGRP22 },
1149   { GRP12 },
1150   { GRP13 },
1151   { GRP14 },
1152   { "pcmpeqb",          { MX, EM } },
1153   { "pcmpeqw",          { MX, EM } },
1154   { "pcmpeqd",          { MX, EM } },
1155   { "emms",             { XX } },
1156   /* 78 */
1157   { PREGRP34 },
1158   { PREGRP35 },
1159   { "(bad)",            { XX } },
1160   { "(bad)",            { XX } },
1161   { PREGRP28 },
1162   { PREGRP29 },
1163   { PREGRP23 },
1164   { PREGRP20 },
1165   /* 80 */
1166   { "joH",              { Jv, XX, cond_jump_flag } },
1167   { "jnoH",             { Jv, XX, cond_jump_flag } },
1168   { "jbH",              { Jv, XX, cond_jump_flag } },
1169   { "jaeH",             { Jv, XX, cond_jump_flag } },
1170   { "jeH",              { Jv, XX, cond_jump_flag } },
1171   { "jneH",             { Jv, XX, cond_jump_flag } },
1172   { "jbeH",             { Jv, XX, cond_jump_flag } },
1173   { "jaH",              { Jv, XX, cond_jump_flag } },
1174   /* 88 */
1175   { "jsH",              { Jv, XX, cond_jump_flag } },
1176   { "jnsH",             { Jv, XX, cond_jump_flag } },
1177   { "jpH",              { Jv, XX, cond_jump_flag } },
1178   { "jnpH",             { Jv, XX, cond_jump_flag } },
1179   { "jlH",              { Jv, XX, cond_jump_flag } },
1180   { "jgeH",             { Jv, XX, cond_jump_flag } },
1181   { "jleH",             { Jv, XX, cond_jump_flag } },
1182   { "jgH",              { Jv, XX, cond_jump_flag } },
1183   /* 90 */
1184   { "seto",             { Eb } },
1185   { "setno",            { Eb } },
1186   { "setb",             { Eb } },
1187   { "setae",            { Eb } },
1188   { "sete",             { Eb } },
1189   { "setne",            { Eb } },
1190   { "setbe",            { Eb } },
1191   { "seta",             { Eb } },
1192   /* 98 */
1193   { "sets",             { Eb } },
1194   { "setns",            { Eb } },
1195   { "setp",             { Eb } },
1196   { "setnp",            { Eb } },
1197   { "setl",             { Eb } },
1198   { "setge",            { Eb } },
1199   { "setle",            { Eb } },
1200   { "setg",             { Eb } },
1201   /* a0 */
1202   { "pushT",            { fs } },
1203   { "popT",             { fs } },
1204   { "cpuid",            { XX } },
1205   { "btS",              { Ev, Gv } },
1206   { "shldS",            { Ev, Gv, Ib } },
1207   { "shldS",            { Ev, Gv, CL } },
1208   { GRPPADLCK2 },
1209   { GRPPADLCK1 },
1210   /* a8 */
1211   { "pushT",            { gs } },
1212   { "popT",             { gs } },
1213   { "rsm",              { XX } },
1214   { "btsS",             { Ev, Gv } },
1215   { "shrdS",            { Ev, Gv, Ib } },
1216   { "shrdS",            { Ev, Gv, CL } },
1217   { GRP15 },
1218   { "imulS",            { Gv, Ev } },
1219   /* b0 */
1220   { "cmpxchgB",         { Eb, Gb } },
1221   { "cmpxchgS",         { Ev, Gv } },
1222   { "lssS",             { Gv, Mp } },
1223   { "btrS",             { Ev, Gv } },
1224   { "lfsS",             { Gv, Mp } },
1225   { "lgsS",             { Gv, Mp } },
1226   { "movz{bR|x|bR|x}",  { Gv, Eb } },
1227   { "movz{wR|x|wR|x}",  { Gv, Ew } }, /* yes, there really is movzww ! */
1228   /* b8 */
1229   { PREGRP37 },
1230   { "ud2b",             { XX } },
1231   { GRP8 },
1232   { "btcS",             { Ev, Gv } },
1233   { "bsfS",             { Gv, Ev } },
1234   { PREGRP36 },
1235   { "movs{bR|x|bR|x}",  { Gv, Eb } },
1236   { "movs{wR|x|wR|x}",  { Gv, Ew } }, /* yes, there really is movsww ! */
1237   /* c0 */
1238   { "xaddB",            { Eb, Gb } },
1239   { "xaddS",            { Ev, Gv } },
1240   { PREGRP1 },
1241   { "movntiS",          { Ev, Gv } },
1242   { "pinsrw",           { MX, Edqw, Ib } },
1243   { "pextrw",           { Gdq, MS, Ib } },
1244   { "shufpX",           { XM, EXx, Ib } },
1245   { GRP9 },
1246   /* c8 */
1247   { "bswap",            { RMeAX } },
1248   { "bswap",            { RMeCX } },
1249   { "bswap",            { RMeDX } },
1250   { "bswap",            { RMeBX } },
1251   { "bswap",            { RMeSP } },
1252   { "bswap",            { RMeBP } },
1253   { "bswap",            { RMeSI } },
1254   { "bswap",            { RMeDI } },
1255   /* d0 */
1256   { PREGRP27 },
1257   { "psrlw",            { MX, EM } },
1258   { "psrld",            { MX, EM } },
1259   { "psrlq",            { MX, EM } },
1260   { "paddq",            { MX, EM } },
1261   { "pmullw",           { MX, EM } },
1262   { PREGRP21 },
1263   { "pmovmskb",         { Gdq, MS } },
1264   /* d8 */
1265   { "psubusb",          { MX, EM } },
1266   { "psubusw",          { MX, EM } },
1267   { "pminub",           { MX, EM } },
1268   { "pand",             { MX, EM } },
1269   { "paddusb",          { MX, EM } },
1270   { "paddusw",          { MX, EM } },
1271   { "pmaxub",           { MX, EM } },
1272   { "pandn",            { MX, EM } },
1273   /* e0 */
1274   { "pavgb",            { MX, EM } },
1275   { "psraw",            { MX, EM } },
1276   { "psrad",            { MX, EM } },
1277   { "pavgw",            { MX, EM } },
1278   { "pmulhuw",          { MX, EM } },
1279   { "pmulhw",           { MX, EM } },
1280   { PREGRP15 },
1281   { PREGRP25 },
1282   /* e8 */
1283   { "psubsb",           { MX, EM } },
1284   { "psubsw",           { MX, EM } },
1285   { "pminsw",           { MX, EM } },
1286   { "por",              { MX, EM } },
1287   { "paddsb",           { MX, EM } },
1288   { "paddsw",           { MX, EM } },
1289   { "pmaxsw",           { MX, EM } },
1290   { "pxor",             { MX, EM } },
1291   /* f0 */
1292   { PREGRP32 },
1293   { "psllw",            { MX, EM } },
1294   { "pslld",            { MX, EM } },
1295   { "psllq",            { MX, EM } },
1296   { "pmuludq",          { MX, EM } },
1297   { "pmaddwd",          { MX, EM } },
1298   { "psadbw",           { MX, EM } },
1299   { PREGRP18 },
1300   /* f8 */
1301   { "psubb",            { MX, EM } },
1302   { "psubw",            { MX, EM } },
1303   { "psubd",            { MX, EM } },
1304   { "psubq",            { MX, EM } },
1305   { "paddb",            { MX, EM } },
1306   { "paddw",            { MX, EM } },
1307   { "paddd",            { MX, EM } },
1308   { "(bad)",            { XX } },
1309 };
1310
1311 static const unsigned char onebyte_has_modrm[256] = {
1312   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1313   /*       -------------------------------        */
1314   /* 00 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 00 */
1315   /* 10 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 10 */
1316   /* 20 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 20 */
1317   /* 30 */ 1,1,1,1,0,0,0,0,1,1,1,1,0,0,0,0, /* 30 */
1318   /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 40 */
1319   /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 50 */
1320   /* 60 */ 0,0,1,1,0,0,0,0,0,1,0,1,0,0,0,0, /* 60 */
1321   /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 70 */
1322   /* 80 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 80 */
1323   /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 90 */
1324   /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* a0 */
1325   /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* b0 */
1326   /* c0 */ 1,1,0,0,1,1,1,1,0,0,0,0,0,0,0,0, /* c0 */
1327   /* d0 */ 1,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* d0 */
1328   /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* e0 */
1329   /* f0 */ 0,0,0,0,0,0,1,1,0,0,0,0,0,0,1,1  /* f0 */
1330   /*       -------------------------------        */
1331   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1332 };
1333
1334 static const unsigned char twobyte_has_modrm[256] = {
1335   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1336   /*       -------------------------------        */
1337   /* 00 */ 1,1,1,1,0,0,0,0,0,0,0,0,0,1,0,1, /* 0f */
1338   /* 10 */ 1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,1, /* 1f */
1339   /* 20 */ 1,1,1,1,1,0,1,0,1,1,1,1,1,1,1,1, /* 2f */
1340   /* 30 */ 0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0, /* 3f */
1341   /* 40 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 4f */
1342   /* 50 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 5f */
1343   /* 60 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 6f */
1344   /* 70 */ 1,1,1,1,1,1,1,0,1,1,0,0,1,1,1,1, /* 7f */
1345   /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1346   /* 90 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* 9f */
1347   /* a0 */ 0,0,0,1,1,1,1,1,0,0,0,1,1,1,1,1, /* af */
1348   /* b0 */ 1,1,1,1,1,1,1,1,1,0,1,1,1,1,1,1, /* bf */
1349   /* c0 */ 1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0, /* cf */
1350   /* d0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* df */
1351   /* e0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1, /* ef */
1352   /* f0 */ 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0  /* ff */
1353   /*       -------------------------------        */
1354   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1355 };
1356
1357 static const unsigned char twobyte_uses_DATA_prefix[256] = {
1358   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1359   /*       -------------------------------        */
1360   /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1361   /* 10 */ 1,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0, /* 1f */
1362   /* 20 */ 0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0, /* 2f */
1363   /* 30 */ 0,0,0,0,0,0,0,0,1,0,1,0,0,0,0,0, /* 3f */
1364   /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1365   /* 50 */ 0,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* 5f */
1366   /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,1, /* 6f */
1367   /* 70 */ 1,0,0,0,0,0,0,0,1,1,0,0,1,1,1,1, /* 7f */
1368   /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1369   /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1370   /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1371   /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1372   /* c0 */ 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1373   /* d0 */ 1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */
1374   /* e0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* ef */
1375   /* f0 */ 1,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0  /* ff */
1376   /*       -------------------------------        */
1377   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1378 };
1379
1380 static const unsigned char twobyte_uses_REPNZ_prefix[256] = {
1381   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1382   /*       -------------------------------        */
1383   /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1384   /* 10 */ 1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
1385   /* 20 */ 0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0, /* 2f */
1386   /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1387   /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1388   /* 50 */ 0,1,0,0,0,0,0,0,1,1,1,0,1,1,1,1, /* 5f */
1389   /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1390   /* 70 */ 1,0,0,0,0,0,0,0,1,1,0,0,1,1,0,0, /* 7f */
1391   /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1392   /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1393   /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1394   /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1395   /* c0 */ 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1396   /* d0 */ 1,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */
1397   /* e0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* ef */
1398   /* f0 */ 1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1399   /*       -------------------------------        */
1400   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1401 };
1402
1403 static const unsigned char twobyte_uses_REPZ_prefix[256] = {
1404   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1405   /*       -------------------------------        */
1406   /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1407   /* 10 */ 1,1,1,0,0,0,1,0,0,0,0,0,0,0,0,0, /* 1f */
1408   /* 20 */ 0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0, /* 2f */
1409   /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1410   /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1411   /* 50 */ 0,1,1,1,0,0,0,0,1,1,1,1,1,1,1,1, /* 5f */
1412   /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1, /* 6f */
1413   /* 70 */ 1,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1, /* 7f */
1414   /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1415   /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1416   /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1417   /* b0 */ 0,0,0,0,0,0,0,0,1,0,0,0,0,1,0,0, /* bf */
1418   /* c0 */ 0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1419   /* d0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* df */
1420   /* e0 */ 0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0, /* ef */
1421   /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1422   /*       -------------------------------        */
1423   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1424 };
1425
1426 /* This is used to determine if opcode 0f 38 XX uses DATA prefix.  */
1427 static const unsigned char threebyte_0x38_uses_DATA_prefix[256] = {
1428   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1429   /*       -------------------------------        */
1430   /* 00 */ 1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0, /* 0f */
1431   /* 10 */ 1,0,0,0,1,1,0,1,0,0,0,0,1,1,1,0, /* 1f */
1432   /* 20 */ 1,1,1,1,1,1,0,0,1,1,1,1,0,0,0,0, /* 2f */
1433   /* 30 */ 1,1,1,1,1,1,0,1,1,1,1,1,1,1,1,1, /* 3f */
1434   /* 40 */ 1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1435   /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1436   /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1437   /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1438   /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1439   /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1440   /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1441   /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1442   /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1443   /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1444   /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1445   /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1446   /*       -------------------------------        */
1447   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1448 };
1449
1450 /* This is used to determine if opcode 0f 38 XX uses REPNZ prefix.  */
1451 static const unsigned char threebyte_0x38_uses_REPNZ_prefix[256] = {
1452   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1453   /*       -------------------------------        */
1454   /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1455   /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
1456   /* 20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 2f */
1457   /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1458   /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1459   /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1460   /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1461   /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1462   /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1463   /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1464   /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1465   /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1466   /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1467   /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1468   /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1469   /* f0 */ 1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1470   /*       -------------------------------        */
1471   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1472 };
1473
1474 /* This is used to determine if opcode 0f 38 XX uses REPZ prefix.  */
1475 static const unsigned char threebyte_0x38_uses_REPZ_prefix[256] = {
1476   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1477   /*       -------------------------------        */
1478   /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1479   /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
1480   /* 20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 2f */
1481   /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1482   /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1483   /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1484   /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1485   /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1486   /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1487   /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1488   /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1489   /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1490   /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1491   /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1492   /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1493   /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1494   /*       -------------------------------        */
1495   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1496 };
1497
1498 /* This is used to determine if opcode 0f 3a XX uses DATA prefix.  */
1499 static const unsigned char threebyte_0x3a_uses_DATA_prefix[256] = {
1500   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1501   /*       -------------------------------        */
1502   /* 00 */ 0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1, /* 0f */
1503   /* 10 */ 0,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0, /* 1f */
1504   /* 20 */ 1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 2f */
1505   /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1506   /* 40 */ 1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1507   /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1508   /* 60 */ 1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1509   /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1510   /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1511   /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1512   /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1513   /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1514   /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1515   /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1516   /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1517   /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1518   /*       -------------------------------        */
1519   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1520 };
1521
1522 /* This is used to determine if opcode 0f 3a XX uses REPNZ prefix.  */
1523 static const unsigned char threebyte_0x3a_uses_REPNZ_prefix[256] = {
1524   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1525   /*       -------------------------------        */
1526   /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1527   /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
1528   /* 20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 2f */
1529   /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1530   /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1531   /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1532   /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1533   /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1534   /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1535   /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1536   /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1537   /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1538   /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1539   /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1540   /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1541   /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1542   /*       -------------------------------        */
1543   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1544 };
1545
1546 /* This is used to determine if opcode 0f 3a XX uses REPZ prefix.  */
1547 static const unsigned char threebyte_0x3a_uses_REPZ_prefix[256] = {
1548   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1549   /*       -------------------------------        */
1550   /* 00 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0f */
1551   /* 10 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 1f */
1552   /* 20 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 2f */
1553   /* 30 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 3f */
1554   /* 40 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 4f */
1555   /* 50 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 5f */
1556   /* 60 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 6f */
1557   /* 70 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 7f */
1558   /* 80 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 8f */
1559   /* 90 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 9f */
1560   /* a0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* af */
1561   /* b0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* bf */
1562   /* c0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* cf */
1563   /* d0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* df */
1564   /* e0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ef */
1565   /* f0 */ 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* ff */
1566   /*       -------------------------------        */
1567   /*       0 1 2 3 4 5 6 7 8 9 a b c d e f        */
1568 };
1569
1570 static char obuf[100];
1571 static char *obufp;
1572 static char scratchbuf[100];
1573 static unsigned char *start_codep;
1574 static unsigned char *insn_codep;
1575 static unsigned char *codep;
1576 static disassemble_info *the_info;
1577 static struct
1578   {
1579     int mod;
1580     int reg;
1581     int rm;
1582   }
1583 modrm;
1584 static unsigned char need_modrm;
1585
1586 /* If we are accessing mod/rm/reg without need_modrm set, then the
1587    values are stale.  Hitting this abort likely indicates that you
1588    need to update onebyte_has_modrm or twobyte_has_modrm.  */
1589 #define MODRM_CHECK  if (!need_modrm) abort ()
1590
1591 static const char * const *names64;
1592 static const char * const *names32;
1593 static const char * const *names16;
1594 static const char * const *names8;
1595 static const char * const *names8rex;
1596 static const char * const *names_seg;
1597 static const char * const *index16;
1598
1599 static const char * const intel_names64[] = {
1600   "rax", "rcx", "rdx", "rbx", "rsp", "rbp", "rsi", "rdi",
1601   "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15"
1602 };
1603 static const char * const intel_names32[] = {
1604   "eax", "ecx", "edx", "ebx", "esp", "ebp", "esi", "edi",
1605   "r8d", "r9d", "r10d", "r11d", "r12d", "r13d", "r14d", "r15d"
1606 };
1607 static const char * const intel_names16[] = {
1608   "ax", "cx", "dx", "bx", "sp", "bp", "si", "di",
1609   "r8w", "r9w", "r10w", "r11w", "r12w", "r13w", "r14w", "r15w"
1610 };
1611 static const char * const intel_names8[] = {
1612   "al", "cl", "dl", "bl", "ah", "ch", "dh", "bh",
1613 };
1614 static const char * const intel_names8rex[] = {
1615   "al", "cl", "dl", "bl", "spl", "bpl", "sil", "dil",
1616   "r8b", "r9b", "r10b", "r11b", "r12b", "r13b", "r14b", "r15b"
1617 };
1618 static const char * const intel_names_seg[] = {
1619   "es", "cs", "ss", "ds", "fs", "gs", "?", "?",
1620 };
1621 static const char * const intel_index16[] = {
1622   "bx+si", "bx+di", "bp+si", "bp+di", "si", "di", "bp", "bx"
1623 };
1624
1625 static const char * const att_names64[] = {
1626   "%rax", "%rcx", "%rdx", "%rbx", "%rsp", "%rbp", "%rsi", "%rdi",
1627   "%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"
1628 };
1629 static const char * const att_names32[] = {
1630   "%eax", "%ecx", "%edx", "%ebx", "%esp", "%ebp", "%esi", "%edi",
1631   "%r8d", "%r9d", "%r10d", "%r11d", "%r12d", "%r13d", "%r14d", "%r15d"
1632 };
1633 static const char * const att_names16[] = {
1634   "%ax", "%cx", "%dx", "%bx", "%sp", "%bp", "%si", "%di",
1635   "%r8w", "%r9w", "%r10w", "%r11w", "%r12w", "%r13w", "%r14w", "%r15w"
1636 };
1637 static const char * const att_names8[] = {
1638   "%al", "%cl", "%dl", "%bl", "%ah", "%ch", "%dh", "%bh",
1639 };
1640 static const char * const att_names8rex[] = {
1641   "%al", "%cl", "%dl", "%bl", "%spl", "%bpl", "%sil", "%dil",
1642   "%r8b", "%r9b", "%r10b", "%r11b", "%r12b", "%r13b", "%r14b", "%r15b"
1643 };
1644 static const char * const att_names_seg[] = {
1645   "%es", "%cs", "%ss", "%ds", "%fs", "%gs", "%?", "%?",
1646 };
1647 static const char * const att_index16[] = {
1648   "%bx,%si", "%bx,%di", "%bp,%si", "%bp,%di", "%si", "%di", "%bp", "%bx"
1649 };
1650
1651 static const struct dis386 grps[][8] = {
1652   /* GRP1a */
1653   {
1654     { "popU",   { stackEv } },
1655     { "(bad)",  { XX } },
1656     { "(bad)",  { XX } },
1657     { "(bad)",  { XX } },
1658     { "(bad)",  { XX } },
1659     { "(bad)",  { XX } },
1660     { "(bad)",  { XX } },
1661     { "(bad)",  { XX } },
1662   },
1663   /* GRP1b */
1664   {
1665     { "addA",   { Eb, Ib } },
1666     { "orA",    { Eb, Ib } },
1667     { "adcA",   { Eb, Ib } },
1668     { "sbbA",   { Eb, Ib } },
1669     { "andA",   { Eb, Ib } },
1670     { "subA",   { Eb, Ib } },
1671     { "xorA",   { Eb, Ib } },
1672     { "cmpA",   { Eb, Ib } },
1673   },
1674   /* GRP1S */
1675   {
1676     { "addQ",   { Ev, Iv } },
1677     { "orQ",    { Ev, Iv } },
1678     { "adcQ",   { Ev, Iv } },
1679     { "sbbQ",   { Ev, Iv } },
1680     { "andQ",   { Ev, Iv } },
1681     { "subQ",   { Ev, Iv } },
1682     { "xorQ",   { Ev, Iv } },
1683     { "cmpQ",   { Ev, Iv } },
1684   },
1685   /* GRP1Ss */
1686   {
1687     { "addQ",   { Ev, sIb } },
1688     { "orQ",    { Ev, sIb } },
1689     { "adcQ",   { Ev, sIb } },
1690     { "sbbQ",   { Ev, sIb } },
1691     { "andQ",   { Ev, sIb } },
1692     { "subQ",   { Ev, sIb } },
1693     { "xorQ",   { Ev, sIb } },
1694     { "cmpQ",   { Ev, sIb } },
1695   },
1696   /* GRP2b */
1697   {
1698     { "rolA",   { Eb, Ib } },
1699     { "rorA",   { Eb, Ib } },
1700     { "rclA",   { Eb, Ib } },
1701     { "rcrA",   { Eb, Ib } },
1702     { "shlA",   { Eb, Ib } },
1703     { "shrA",   { Eb, Ib } },
1704     { "(bad)",  { XX } },
1705     { "sarA",   { Eb, Ib } },
1706   },
1707   /* GRP2S */
1708   {
1709     { "rolQ",   { Ev, Ib } },
1710     { "rorQ",   { Ev, Ib } },
1711     { "rclQ",   { Ev, Ib } },
1712     { "rcrQ",   { Ev, Ib } },
1713     { "shlQ",   { Ev, Ib } },
1714     { "shrQ",   { Ev, Ib } },
1715     { "(bad)",  { XX } },
1716     { "sarQ",   { Ev, Ib } },
1717   },
1718   /* GRP2b_one */
1719   {
1720     { "rolA",   { Eb, I1 } },
1721     { "rorA",   { Eb, I1 } },
1722     { "rclA",   { Eb, I1 } },
1723     { "rcrA",   { Eb, I1 } },
1724     { "shlA",   { Eb, I1 } },
1725     { "shrA",   { Eb, I1 } },
1726     { "(bad)",  { XX } },
1727     { "sarA",   { Eb, I1 } },
1728   },
1729   /* GRP2S_one */
1730   {
1731     { "rolQ",   { Ev, I1 } },
1732     { "rorQ",   { Ev, I1 } },
1733     { "rclQ",   { Ev, I1 } },
1734     { "rcrQ",   { Ev, I1 } },
1735     { "shlQ",   { Ev, I1 } },
1736     { "shrQ",   { Ev, I1 } },
1737     { "(bad)",  { XX } },
1738     { "sarQ",   { Ev, I1 } },
1739   },
1740   /* GRP2b_cl */
1741   {
1742     { "rolA",   { Eb, CL } },
1743     { "rorA",   { Eb, CL } },
1744     { "rclA",   { Eb, CL } },
1745     { "rcrA",   { Eb, CL } },
1746     { "shlA",   { Eb, CL } },
1747     { "shrA",   { Eb, CL } },
1748     { "(bad)",  { XX } },
1749     { "sarA",   { Eb, CL } },
1750   },
1751   /* GRP2S_cl */
1752   {
1753     { "rolQ",   { Ev, CL } },
1754     { "rorQ",   { Ev, CL } },
1755     { "rclQ",   { Ev, CL } },
1756     { "rcrQ",   { Ev, CL } },
1757     { "shlQ",   { Ev, CL } },
1758     { "shrQ",   { Ev, CL } },
1759     { "(bad)",  { XX } },
1760     { "sarQ",   { Ev, CL } },
1761   },
1762   /* GRP3b */
1763   {
1764     { "testA",  { Eb, Ib } },
1765     { "(bad)",  { Eb } },
1766     { "notA",   { Eb } },
1767     { "negA",   { Eb } },
1768     { "mulA",   { Eb } },       /* Don't print the implicit %al register,  */
1769     { "imulA",  { Eb } },       /* to distinguish these opcodes from other */
1770     { "divA",   { Eb } },       /* mul/imul opcodes.  Do the same for div  */
1771     { "idivA",  { Eb } },       /* and idiv for consistency.               */
1772   },
1773   /* GRP3S */
1774   {
1775     { "testQ",  { Ev, Iv } },
1776     { "(bad)",  { XX } },
1777     { "notQ",   { Ev } },
1778     { "negQ",   { Ev } },
1779     { "mulQ",   { Ev } },       /* Don't print the implicit register.  */
1780     { "imulQ",  { Ev } },
1781     { "divQ",   { Ev } },
1782     { "idivQ",  { Ev } },
1783   },
1784   /* GRP4 */
1785   {
1786     { "incA",   { Eb } },
1787     { "decA",   { Eb } },
1788     { "(bad)",  { XX } },
1789     { "(bad)",  { XX } },
1790     { "(bad)",  { XX } },
1791     { "(bad)",  { XX } },
1792     { "(bad)",  { XX } },
1793     { "(bad)",  { XX } },
1794   },
1795   /* GRP5 */
1796   {
1797     { "incQ",   { Ev } },
1798     { "decQ",   { Ev } },
1799     { "callT",  { indirEv } },
1800     { "JcallT", { indirEp } },
1801     { "jmpT",   { indirEv } },
1802     { "JjmpT",  { indirEp } },
1803     { "pushU",  { stackEv } },
1804     { "(bad)",  { XX } },
1805   },
1806   /* GRP6 */
1807   {
1808     { "sldtD",  { Sv } },
1809     { "strD",   { Sv } },
1810     { "lldt",   { Ew } },
1811     { "ltr",    { Ew } },
1812     { "verr",   { Ew } },
1813     { "verw",   { Ew } },
1814     { "(bad)",  { XX } },
1815     { "(bad)",  { XX } },
1816   },
1817   /* GRP7 */
1818   {
1819     { "sgdt{Q|IQ||}", { { VMX_Fixup, 0 } } },
1820     { "sidt{Q|IQ||}", { { PNI_Fixup, 0 } } },
1821     { "lgdt{Q|Q||}",     { M } },
1822     { "lidt{Q|Q||}",     { { SVME_Fixup, 0 } } },
1823     { "smswD",  { Sv } },
1824     { "(bad)",  { XX } },
1825     { "lmsw",   { Ew } },
1826     { "invlpg", { { INVLPG_Fixup, w_mode } } },
1827   },
1828   /* GRP8 */
1829   {
1830     { "(bad)",  { XX } },
1831     { "(bad)",  { XX } },
1832     { "(bad)",  { XX } },
1833     { "(bad)",  { XX } },
1834     { "btQ",    { Ev, Ib } },
1835     { "btsQ",   { Ev, Ib } },
1836     { "btrQ",   { Ev, Ib } },
1837     { "btcQ",   { Ev, Ib } },
1838   },
1839   /* GRP9 */
1840   {
1841     { "(bad)",  { XX } },
1842     { "cmpxchg8b", { { CMPXCHG8B_Fixup, q_mode } } },
1843     { "(bad)",  { XX } },
1844     { "(bad)",  { XX } },
1845     { "(bad)",  { XX } },
1846     { "(bad)",  { XX } },
1847     { "",       { VM } },               /* See OP_VMX.  */
1848     { "vmptrst", { Mq } },
1849   },
1850   /* GRP11_C6 */
1851   {
1852     { "movA",   { Eb, Ib } },
1853     { "(bad)",  { XX } },
1854     { "(bad)",  { XX } },
1855     { "(bad)",  { XX } },
1856     { "(bad)",  { XX } },
1857     { "(bad)",  { XX } },
1858     { "(bad)",  { XX } },
1859     { "(bad)",  { XX } },
1860   },
1861   /* GRP11_C7 */
1862   {
1863     { "movQ",   { Ev, Iv } },
1864     { "(bad)",  { XX } },
1865     { "(bad)",  { XX } },
1866     { "(bad)",  { XX } },
1867     { "(bad)",  { XX } },
1868     { "(bad)",  { XX } },
1869     { "(bad)",  { XX } },
1870     { "(bad)",  { XX } },
1871   },
1872   /* GRP12 */
1873   {
1874     { "(bad)",  { XX } },
1875     { "(bad)",  { XX } },
1876     { "psrlw",  { MS, Ib } },
1877     { "(bad)",  { XX } },
1878     { "psraw",  { MS, Ib } },
1879     { "(bad)",  { XX } },
1880     { "psllw",  { MS, Ib } },
1881     { "(bad)",  { XX } },
1882   },
1883   /* GRP13 */
1884   {
1885     { "(bad)",  { XX } },
1886     { "(bad)",  { XX } },
1887     { "psrld",  { MS, Ib } },
1888     { "(bad)",  { XX } },
1889     { "psrad",  { MS, Ib } },
1890     { "(bad)",  { XX } },
1891     { "pslld",  { MS, Ib } },
1892     { "(bad)",  { XX } },
1893   },
1894   /* GRP14 */
1895   {
1896     { "(bad)",  { XX } },
1897     { "(bad)",  { XX } },
1898     { "psrlq",  { MS, Ib } },
1899     { "psrldq", { MS, Ib } },
1900     { "(bad)",  { XX } },
1901     { "(bad)",  { XX } },
1902     { "psllq",  { MS, Ib } },
1903     { "pslldq", { MS, Ib } },
1904   },
1905   /* GRP15 */
1906   {
1907     { "fxsave",         { Ev } },
1908     { "fxrstor",        { Ev } },
1909     { "ldmxcsr",        { Ev } },
1910     { "stmxcsr",        { Ev } },
1911     { "(bad)",          { XX } },
1912     { "lfence",         { { OP_0fae, 0 } } },
1913     { "mfence",         { { OP_0fae, 0 } } },
1914     { "clflush",        { { OP_0fae, 0 } } },
1915   },
1916   /* GRP16 */
1917   {
1918     { "prefetchnta",    { Ev } },
1919     { "prefetcht0",     { Ev } },
1920     { "prefetcht1",     { Ev } },
1921     { "prefetcht2",     { Ev } },
1922     { "(bad)",          { XX } },
1923     { "(bad)",          { XX } },
1924     { "(bad)",          { XX } },
1925     { "(bad)",          { XX } },
1926   },
1927   /* GRPAMD */
1928   {
1929     { "prefetch",       { Eb } },
1930     { "prefetchw",      { Eb } },
1931     { "(bad)",          { XX } },
1932     { "(bad)",          { XX } },
1933     { "(bad)",          { XX } },
1934     { "(bad)",          { XX } },
1935     { "(bad)",          { XX } },
1936     { "(bad)",          { XX } },
1937   },
1938   /* GRPPADLCK1 */
1939   {
1940     { "xstore-rng",     { { OP_0f07, 0 } } },
1941     { "xcrypt-ecb",     { { OP_0f07, 0 } } },
1942     { "xcrypt-cbc",     { { OP_0f07, 0 } } },
1943     { "xcrypt-ctr",     { { OP_0f07, 0 } } },
1944     { "xcrypt-cfb",     { { OP_0f07, 0 } } },
1945     { "xcrypt-ofb",     { { OP_0f07, 0 } } },
1946     { "(bad)",          { { OP_0f07, 0 } } },
1947     { "(bad)",          { { OP_0f07, 0 } } },
1948   },
1949   /* GRPPADLCK2 */
1950   {
1951     { "montmul",        { { OP_0f07, 0 } } },
1952     { "xsha1",          { { OP_0f07, 0 } } },
1953     { "xsha256",        { { OP_0f07, 0 } } },
1954     { "(bad)",          { { OP_0f07, 0 } } },
1955     { "(bad)",          { { OP_0f07, 0 } } },
1956     { "(bad)",          { { OP_0f07, 0 } } },
1957     { "(bad)",          { { OP_0f07, 0 } } },
1958     { "(bad)",          { { OP_0f07, 0 } } },
1959   }
1960 };
1961
1962 static const struct dis386 prefix_user_table[][4] = {
1963   /* PREGRP0 */
1964   {
1965     { "addps", { XM, EXx } },
1966     { "addss", { XM, EXd } },
1967     { "addpd", { XM, EXx } },
1968     { "addsd", { XM, EXq } },
1969   },
1970   /* PREGRP1 */
1971   {
1972     { "", { XM, EXx, OPSIMD } },        /* See OP_SIMD_SUFFIX.  */
1973     { "", { XM, EXx, OPSIMD } },
1974     { "", { XM, EXx, OPSIMD } },
1975     { "", { XM, EXx, OPSIMD } },
1976   },
1977   /* PREGRP2 */
1978   {
1979     { "cvtpi2ps", { XM, EMC } },
1980     { "cvtsi2ssY", { XM, Ev } },
1981     { "cvtpi2pd", { XM, EMC } },
1982     { "cvtsi2sdY", { XM, Ev } },
1983   },
1984   /* PREGRP3 */
1985   {
1986     { "cvtps2pi", { MXC, EXx } },
1987     { "cvtss2siY", { Gv, EXx } },
1988     { "cvtpd2pi", { MXC, EXx } },
1989     { "cvtsd2siY", { Gv, EXx } },
1990   },
1991   /* PREGRP4 */
1992   {
1993     { "cvttps2pi", { MXC, EXx } },
1994     { "cvttss2siY", { Gv, EXx } },
1995     { "cvttpd2pi", { MXC, EXx } },
1996     { "cvttsd2siY", { Gv, EXx } },
1997   },
1998   /* PREGRP5 */
1999   {
2000     { "divps",  { XM, EXx } },
2001     { "divss",  { XM, EXx } },
2002     { "divpd",  { XM, EXx } },
2003     { "divsd",  { XM, EXx } },
2004   },
2005   /* PREGRP6 */
2006   {
2007     { "maxps",  { XM, EXx } },
2008     { "maxss",  { XM, EXx } },
2009     { "maxpd",  { XM, EXx } },
2010     { "maxsd",  { XM, EXx } },
2011   },
2012   /* PREGRP7 */
2013   {
2014     { "minps",  { XM, EXx } },
2015     { "minss",  { XM, EXx } },
2016     { "minpd",  { XM, EXx } },
2017     { "minsd",  { XM, EXx } },
2018   },
2019   /* PREGRP8 */
2020   {
2021     { "movups", { XM, EXx } },
2022     { "movss",  { XM, EXx } },
2023     { "movupd", { XM, EXx } },
2024     { "movsd",  { XM, EXx } },
2025   },
2026   /* PREGRP9 */
2027   {
2028     { "movups", { EXx,  XM } },
2029     { "movss",  { EXx,  XM } },
2030     { "movupd", { EXx,  XM } },
2031     { "movsd",  { EXx,  XM } },
2032   },
2033   /* PREGRP10 */
2034   {
2035     { "mulps",  { XM, EXx } },
2036     { "mulss",  { XM, EXx } },
2037     { "mulpd",  { XM, EXx } },
2038     { "mulsd",  { XM, EXx } },
2039   },
2040   /* PREGRP11 */
2041   {
2042     { "rcpps",  { XM, EXx } },
2043     { "rcpss",  { XM, EXx } },
2044     { "(bad)",  { XM, EXx } },
2045     { "(bad)",  { XM, EXx } },
2046   },
2047   /* PREGRP12 */
2048   {
2049     { "rsqrtps",{ XM, EXx } },
2050     { "rsqrtss",{ XM, EXx } },
2051     { "(bad)",  { XM, EXx } },
2052     { "(bad)",  { XM, EXx } },
2053   },
2054   /* PREGRP13 */
2055   {
2056     { "sqrtps", { XM, EXx } },
2057     { "sqrtss", { XM, EXx } },
2058     { "sqrtpd", { XM, EXx } },
2059     { "sqrtsd", { XM, EXx } },
2060   },
2061   /* PREGRP14 */
2062   {
2063     { "subps",  { XM, EXx } },
2064     { "subss",  { XM, EXx } },
2065     { "subpd",  { XM, EXx } },
2066     { "subsd",  { XM, EXx } },
2067   },
2068   /* PREGRP15 */
2069   {
2070     { "(bad)",  { XM, EXx } },
2071     { "cvtdq2pd", { XM, EXq } },
2072     { "cvttpd2dq", { XM, EXx } },
2073     { "cvtpd2dq", { XM, EXx } },
2074   },
2075   /* PREGRP16 */
2076   {
2077     { "cvtdq2ps", { XM, EXx } },
2078     { "cvttps2dq", { XM, EXx } },
2079     { "cvtps2dq", { XM, EXx } },
2080     { "(bad)",  { XM, EXx } },
2081   },
2082   /* PREGRP17 */
2083   {
2084     { "cvtps2pd", { XM, EXq } },
2085     { "cvtss2sd", { XM, EXx } },
2086     { "cvtpd2ps", { XM, EXx } },
2087     { "cvtsd2ss", { XM, EXx } },
2088   },
2089   /* PREGRP18 */
2090   {
2091     { "maskmovq", { MX, MS } },
2092     { "(bad)",  { XM, EXx } },
2093     { "maskmovdqu", { XM, XS } },
2094     { "(bad)",  { XM, EXx } },
2095   },
2096   /* PREGRP19 */
2097   {
2098     { "movq",   { MX, EM } },
2099     { "movdqu", { XM, EXx } },
2100     { "movdqa", { XM, EXx } },
2101     { "(bad)",  { XM, EXx } },
2102   },
2103   /* PREGRP20 */
2104   {
2105     { "movq",   { EM, MX } },
2106     { "movdqu", { EXx,  XM } },
2107     { "movdqa", { EXx,  XM } },
2108     { "(bad)",  { EXx,  XM } },
2109   },
2110   /* PREGRP21 */
2111   {
2112     { "(bad)",  { EXx,  XM } },
2113     { "movq2dq",{ XM, MS } },
2114     { "movq",   { EXx,  XM } },
2115     { "movdq2q",{ MX, XS } },
2116   },
2117   /* PREGRP22 */
2118   {
2119     { "pshufw", { MX, EM, Ib } },
2120     { "pshufhw",{ XM, EXx, Ib } },
2121     { "pshufd", { XM, EXx, Ib } },
2122     { "pshuflw",{ XM, EXx, Ib } },
2123   },
2124   /* PREGRP23 */
2125   {
2126     { "movd",   { Edq, MX } },
2127     { "movq",   { XM, EXx } },
2128     { "movd",   { Edq, XM } },
2129     { "(bad)",  { Ed, XM } },
2130   },
2131   /* PREGRP24 */
2132   {
2133     { "(bad)",  { MX, EXx } },
2134     { "(bad)",  { XM, EXx } },
2135     { "punpckhqdq", { XM, EXx } },
2136     { "(bad)",  { XM, EXx } },
2137   },
2138   /* PREGRP25 */
2139   {
2140     { "movntq", { EM, MX } },
2141     { "(bad)",  { EM, XM } },
2142     { "movntdq",{ EM, XM } },
2143     { "(bad)",  { EM, XM } },
2144   },
2145   /* PREGRP26 */
2146   {
2147     { "(bad)",  { MX, EXx } },
2148     { "(bad)",  { XM, EXx } },
2149     { "punpcklqdq", { XM, EXx } },
2150     { "(bad)",  { XM, EXx } },
2151   },
2152   /* PREGRP27 */
2153   {
2154     { "(bad)",  { MX, EXx } },
2155     { "(bad)",  { XM, EXx } },
2156     { "addsubpd", { XM, EXx } },
2157     { "addsubps", { XM, EXx } },
2158   },
2159   /* PREGRP28 */
2160   {
2161     { "(bad)",  { MX, EXx } },
2162     { "(bad)",  { XM, EXx } },
2163     { "haddpd", { XM, EXx } },
2164     { "haddps", { XM, EXx } },
2165   },
2166   /* PREGRP29 */
2167   {
2168     { "(bad)",  { MX, EXx } },
2169     { "(bad)",  { XM, EXx } },
2170     { "hsubpd", { XM, EXx } },
2171     { "hsubps", { XM, EXx } },
2172   },
2173   /* PREGRP30 */
2174   {
2175     { "movlpX", { XM, EXq, { SIMD_Fixup, 'h' } } }, /* really only 2 operands */
2176     { "movsldup", { XM, EXx } },
2177     { "movlpd", { XM, EXq } },
2178     { "movddup", { XM, EXq } },
2179   },
2180   /* PREGRP31 */
2181   {
2182     { "movhpX", { XM, EXq, { SIMD_Fixup, 'l' } } },
2183     { "movshdup", { XM, EXx } },
2184     { "movhpd", { XM, EXq } },
2185     { "(bad)",  { XM, EXq } },
2186   },
2187   /* PREGRP32 */
2188   {
2189     { "(bad)",  { XM, EXx } },
2190     { "(bad)",  { XM, EXx } },
2191     { "(bad)",  { XM, EXx } },
2192     { "lddqu",  { XM, M } },
2193   },
2194   /* PREGRP33 */
2195   {
2196     {"movntps", { Ev, XM } },
2197     {"movntss", { Ev, XM } },
2198     {"movntpd", { Ev, XM } },
2199     {"movntsd", { Ev, XM } },
2200   },
2201
2202   /* PREGRP34 */
2203   {
2204     {"vmread",  { Em, Gm } },
2205     {"(bad)",   { XX } },
2206     {"extrq",   { XS, Ib, Ib } },
2207     {"insertq", { XM, XS, Ib, Ib } },
2208   },
2209
2210  /* PREGRP35 */
2211   {
2212     {"vmwrite", { Gm, Em } },
2213     {"(bad)",   { XX } },
2214     {"extrq",   { XM, XS } },
2215     {"insertq", { XM, XS } },
2216   },
2217
2218   /* PREGRP36 */
2219   {
2220     { "bsrS",   { Gv, Ev } },
2221     { "lzcntS", { Gv, Ev } },
2222     { "bsrS",   { Gv, Ev } },
2223     { "(bad)",  { XX } },
2224   },
2225
2226   /* PREGRP37 */
2227   {
2228     { "(bad)", { XX } },
2229     { "popcntS", { Gv, Ev } },
2230     { "(bad)", { XX } },
2231     { "(bad)", { XX } },
2232   },
2233
2234   /* PREGRP38 */
2235   {
2236     { "xchgS", { { NOP_Fixup1, eAX_reg }, { NOP_Fixup2, eAX_reg } } },
2237     { "pause", { XX } },
2238     { "xchgS", { { NOP_Fixup1, eAX_reg }, { NOP_Fixup2, eAX_reg } } },
2239     { "(bad)", { XX } },
2240   },
2241
2242   /* PREGRP39 */
2243   {
2244     { "(bad)",  { XX } },
2245     { "(bad)",  { XX } },
2246     { "pblendvb", {XM, EXx, XMM0 } },
2247     { "(bad)",  { XX } },
2248   },
2249
2250   /* PREGRP40 */
2251   {
2252     { "(bad)",  { XX } },
2253     { "(bad)",  { XX } },
2254     { "blendvps", {XM, EXx, XMM0 } },
2255     { "(bad)",  { XX } },
2256   },
2257
2258   /* PREGRP41 */
2259   {
2260     { "(bad)",  { XX } },
2261     { "(bad)",  { XX } },
2262     { "blendvpd", { XM, EXx, XMM0 } },
2263     { "(bad)",  { XX } },
2264   },
2265
2266   /* PREGRP42 */
2267   {
2268     { "(bad)",  { XX } },
2269     { "(bad)",  { XX } },
2270     { "ptest",  { XM, EXx } },
2271     { "(bad)",  { XX } },
2272   },
2273
2274   /* PREGRP43 */
2275   {
2276     { "(bad)",  { XX } },
2277     { "(bad)",  { XX } },
2278     { "pmovsxbw", { XM, EXx } },
2279     { "(bad)",  { XX } },
2280   },
2281
2282   /* PREGRP44 */
2283   {
2284     { "(bad)",  { XX } },
2285     { "(bad)",  { XX } },
2286     { "pmovsxbd", { XM, EXx } },
2287     { "(bad)",  { XX } },
2288   },
2289
2290   /* PREGRP45 */
2291   {
2292     { "(bad)",  { XX } },
2293     { "(bad)",  { XX } },
2294     { "pmovsxbq", { XM, EXx } },
2295     { "(bad)",  { XX } },
2296   },
2297
2298   /* PREGRP46 */
2299   {
2300     { "(bad)",  { XX } },
2301     { "(bad)",  { XX } },
2302     { "pmovsxwd", { XM, EXx } },
2303     { "(bad)",  { XX } },
2304   },
2305
2306   /* PREGRP47 */
2307   {
2308     { "(bad)",  { XX } },
2309     { "(bad)",  { XX } },
2310     { "pmovsxwq", { XM, EXx } },
2311     { "(bad)",  { XX } },
2312   },
2313
2314   /* PREGRP48 */
2315   {
2316     { "(bad)",  { XX } },
2317     { "(bad)",  { XX } },
2318     { "pmovsxdq", { XM, EXx } },
2319     { "(bad)",  { XX } },
2320   },
2321
2322   /* PREGRP49 */
2323   {
2324     { "(bad)",  { XX } },
2325     { "(bad)",  { XX } },
2326     { "pmuldq", { XM, EXx } },
2327     { "(bad)",  { XX } },
2328   },
2329
2330   /* PREGRP50 */
2331   {
2332     { "(bad)",  { XX } },
2333     { "(bad)",  { XX } },
2334     { "pcmpeqq", { XM, EXx } },
2335     { "(bad)",  { XX } },
2336   },
2337
2338   /* PREGRP51 */
2339   {
2340     { "(bad)",  { XX } },
2341     { "(bad)",  { XX } },
2342     { "movntdqa", { XM, EM } },
2343     { "(bad)",  { XX } },
2344   },
2345
2346   /* PREGRP52 */
2347   {
2348     { "(bad)",  { XX } },
2349     { "(bad)",  { XX } },
2350     { "packusdw", { XM, EXx } },
2351     { "(bad)",  { XX } },
2352   },
2353
2354   /* PREGRP53 */
2355   {
2356     { "(bad)",  { XX } },
2357     { "(bad)",  { XX } },
2358     { "pmovzxbw", { XM, EXx } },
2359     { "(bad)",  { XX } },
2360   },
2361
2362   /* PREGRP54 */
2363   {
2364     { "(bad)",  { XX } },
2365     { "(bad)",  { XX } },
2366     { "pmovzxbd", { XM, EXx } },
2367     { "(bad)",  { XX } },
2368   },
2369
2370   /* PREGRP55 */
2371   {
2372     { "(bad)",  { XX } },
2373     { "(bad)",  { XX } },
2374     { "pmovzxbq", { XM, EXx } },
2375     { "(bad)",  { XX } },
2376   },
2377
2378   /* PREGRP56 */
2379   {
2380     { "(bad)",  { XX } },
2381     { "(bad)",  { XX } },
2382     { "pmovzxwd", { XM, EXx } },
2383     { "(bad)",  { XX } },
2384   },
2385
2386   /* PREGRP57 */
2387   {
2388     { "(bad)",  { XX } },
2389     { "(bad)",  { XX } },
2390     { "pmovzxwq", { XM, EXx } },
2391     { "(bad)",  { XX } },
2392   },
2393
2394   /* PREGRP58 */
2395   {
2396     { "(bad)",  { XX } },
2397     { "(bad)",  { XX } },
2398     { "pmovzxdq", { XM, EXx } },
2399     { "(bad)",  { XX } },
2400   },
2401
2402   /* PREGRP59 */
2403   {
2404     { "(bad)",  { XX } },
2405     { "(bad)",  { XX } },
2406     { "pminsb", { XM, EXx } },
2407     { "(bad)",  { XX } },
2408   },
2409
2410   /* PREGRP60 */
2411   {
2412     { "(bad)",  { XX } },
2413     { "(bad)",  { XX } },
2414     { "pminsd", { XM, EXx } },
2415     { "(bad)",  { XX } },
2416   },
2417
2418   /* PREGRP61 */
2419   {
2420     { "(bad)",  { XX } },
2421     { "(bad)",  { XX } },
2422     { "pminuw", { XM, EXx } },
2423     { "(bad)",  { XX } },
2424   },
2425
2426   /* PREGRP62 */
2427   {
2428     { "(bad)",  { XX } },
2429     { "(bad)",  { XX } },
2430     { "pminud", { XM, EXx } },
2431     { "(bad)",  { XX } },
2432   },
2433
2434   /* PREGRP63 */
2435   {
2436     { "(bad)",  { XX } },
2437     { "(bad)",  { XX } },
2438     { "pmaxsb", { XM, EXx } },
2439     { "(bad)",  { XX } },
2440   },
2441
2442   /* PREGRP64 */
2443   {
2444     { "(bad)",  { XX } },
2445     { "(bad)",  { XX } },
2446     { "pmaxsd", { XM, EXx } },
2447     { "(bad)",  { XX } },
2448   },
2449
2450   /* PREGRP65 */
2451   {
2452     { "(bad)",  { XX } },
2453     { "(bad)",  { XX } },
2454     { "pmaxuw", { XM, EXx } },
2455     { "(bad)",  { XX } },
2456   },
2457
2458   /* PREGRP66 */
2459   {
2460     { "(bad)",  { XX } },
2461     { "(bad)",  { XX } },
2462     { "pmaxud", { XM, EXx } },
2463     { "(bad)",  { XX } },
2464   },
2465
2466   /* PREGRP67 */
2467   {
2468     { "(bad)",  { XX } },
2469     { "(bad)",  { XX } },
2470     { "pmulld", { XM, EXx } },
2471     { "(bad)",  { XX } },
2472   },
2473
2474   /* PREGRP68 */
2475   {
2476     { "(bad)",  { XX } },
2477     { "(bad)",  { XX } },
2478     { "phminposuw", { XM, EXx } },
2479     { "(bad)",  { XX } },
2480   },
2481
2482   /* PREGRP69 */
2483   {
2484     { "(bad)",  { XX } },
2485     { "(bad)",  { XX } },
2486     { "roundps", { XM, EXx, Ib } },
2487     { "(bad)",  { XX } },
2488   },
2489
2490   /* PREGRP70 */
2491   {
2492     { "(bad)",  { XX } },
2493     { "(bad)",  { XX } },
2494     { "roundpd", { XM, EXx, Ib } },
2495     { "(bad)",  { XX } },
2496   },
2497
2498   /* PREGRP71 */
2499   {
2500     { "(bad)",  { XX } },
2501     { "(bad)",  { XX } },
2502     { "roundss", { XM, EXx, Ib } },
2503     { "(bad)",  { XX } },
2504   },
2505
2506   /* PREGRP72 */
2507   {
2508     { "(bad)",  { XX } },
2509     { "(bad)",  { XX } },
2510     { "roundsd", { XM, EXx, Ib } },
2511     { "(bad)",  { XX } },
2512   },
2513
2514   /* PREGRP73 */
2515   {
2516     { "(bad)",  { XX } },
2517     { "(bad)",  { XX } },
2518     { "blendps", { XM, EXx, Ib } },
2519     { "(bad)",  { XX } },
2520   },
2521
2522   /* PREGRP74 */
2523   {
2524     { "(bad)",  { XX } },
2525     { "(bad)",  { XX } },
2526     { "blendpd", { XM, EXx, Ib } },
2527     { "(bad)",  { XX } },
2528   },
2529
2530   /* PREGRP75 */
2531   {
2532     { "(bad)",  { XX } },
2533     { "(bad)",  { XX } },
2534     { "pblendw", { XM, EXx, Ib } },
2535     { "(bad)",  { XX } },
2536   },
2537
2538   /* PREGRP76 */
2539   {
2540     { "(bad)",  { XX } },
2541     { "(bad)",  { XX } },
2542     { "pextrb", { Edqb, XM, Ib } },
2543     { "(bad)",  { XX } },
2544   },
2545
2546   /* PREGRP77 */
2547   {
2548     { "(bad)",  { XX } },
2549     { "(bad)",  { XX } },
2550     { "pextrw", { Edqw, XM, Ib } },
2551     { "(bad)",  { XX } },
2552   },
2553
2554   /* PREGRP78 */
2555   {
2556     { "(bad)",  { XX } },
2557     { "(bad)",  { XX } },
2558     { "pextrK", { Edq, XM, Ib } },
2559     { "(bad)",  { XX } },
2560   },
2561
2562   /* PREGRP79 */
2563   {
2564     { "(bad)",  { XX } },
2565     { "(bad)",  { XX } },
2566     { "extractps", { Edqd, XM, Ib } },
2567     { "(bad)",  { XX } },
2568   },
2569
2570   /* PREGRP80 */
2571   {
2572     { "(bad)",  { XX } },
2573     { "(bad)",  { XX } },
2574     { "pinsrb", { XM, Edqb, Ib } },
2575     { "(bad)",  { XX } },
2576   },
2577
2578   /* PREGRP81 */
2579   {
2580     { "(bad)",  { XX } },
2581     { "(bad)",  { XX } },
2582     { "insertps", { XM, EXx, Ib } },
2583     { "(bad)",  { XX } },
2584   },
2585
2586   /* PREGRP82 */
2587   {
2588     { "(bad)",  { XX } },
2589     { "(bad)",  { XX } },
2590     { "pinsrK", { XM, Edq, Ib } },
2591     { "(bad)",  { XX } },
2592   },
2593
2594   /* PREGRP83 */
2595   {
2596     { "(bad)",  { XX } },
2597     { "(bad)",  { XX } },
2598     { "dpps",   { XM, EXx, Ib } },
2599     { "(bad)",  { XX } },
2600   },
2601
2602   /* PREGRP84 */
2603   {
2604     { "(bad)",  { XX } },
2605     { "(bad)",  { XX } },
2606     { "dppd",   { XM, EXx, Ib } },
2607     { "(bad)",  { XX } },
2608   },
2609
2610   /* PREGRP85 */
2611   {
2612     { "(bad)",  { XX } },
2613     { "(bad)",  { XX } },
2614     { "mpsadbw", { XM, EXx, Ib } },
2615     { "(bad)",  { XX } },
2616   },
2617
2618   /* PREGRP86 */
2619   {
2620     { "(bad)",  { XX } },
2621     { "(bad)",  { XX } },
2622     { "pcmpgtq", { XM, EXx } },
2623     { "(bad)",  { XX } },
2624   },
2625
2626   /* PREGRP87 */
2627   {
2628     { "(bad)",  { XX } },
2629     { "(bad)",  { XX } },
2630     { "(bad)",  { XX } },
2631     { "crc32",  { Gdq, { CRC32_Fixup, b_mode } } },
2632   },
2633
2634   /* PREGRP88 */
2635   {
2636     { "(bad)",  { XX } },
2637     { "(bad)",  { XX } },
2638     { "(bad)",  { XX } },
2639     { "crc32",  { Gdq, { CRC32_Fixup, v_mode } } },
2640   },
2641
2642   /* PREGRP89 */
2643   {
2644     { "(bad)",  { XX } },
2645     { "(bad)",  { XX } },
2646     { "pcmpestrm", { XM, EXx, Ib } },
2647     { "(bad)",  { XX } },
2648   },
2649
2650   /* PREGRP90 */
2651   {
2652     { "(bad)",  { XX } },
2653     { "(bad)",  { XX } },
2654     { "pcmpestri", { XM, EXx, Ib } },
2655     { "(bad)",  { XX } },
2656   },
2657
2658   /* PREGRP91 */
2659   {
2660     { "(bad)",  { XX } },
2661     { "(bad)",  { XX } },
2662     { "pcmpistrm", { XM, EXx, Ib } },
2663     { "(bad)",  { XX } },
2664   },
2665
2666   /* PREGRP92 */
2667   {
2668     { "(bad)",  { XX } },
2669     { "(bad)",  { XX } },
2670     { "pcmpistri", { XM, EXx, Ib } },
2671     { "(bad)",  { XX } },
2672   },
2673
2674   /* PREGRP93 */
2675   {
2676     { "ucomiss",{ XM, EXd } },
2677     { "(bad)",  { XX } },
2678     { "ucomisd",{ XM, EXq } },
2679     { "(bad)",  { XX } },
2680   },
2681
2682   /* PREGRP94 */
2683   {
2684     { "comiss", { XM, EXd } },
2685     { "(bad)",  { XX } },
2686     { "comisd", { XM, EXq } },
2687     { "(bad)",  { XX } },
2688   },
2689
2690   /* PREGRP95 */
2691   {
2692     { "punpcklbw",{ MX, EMd } },
2693     { "(bad)",  { XX } },
2694     { "punpcklbw",{ MX, EMq } },
2695     { "(bad)",  { XX } },
2696   },
2697
2698   /* PREGRP96 */
2699   {
2700     { "punpcklwd",{ MX, EMd } },
2701     { "(bad)",  { XX } },
2702     { "punpcklwd",{ MX, EMq } },
2703     { "(bad)",  { XX } },
2704   },
2705
2706   /* PREGRP97 */
2707   {
2708     { "punpckldq",{ MX, EMd } },
2709     { "(bad)",  { XX } },
2710     { "punpckldq",{ MX, EMq } },
2711     { "(bad)",  { XX } },
2712   },
2713 };
2714
2715 static const struct dis386 x86_64_table[][2] = {
2716   {
2717     { "pusha{P|}", { XX } },
2718     { "(bad)", { XX } },
2719   },
2720   {
2721     { "popa{P|}", { XX } },
2722     { "(bad)", { XX } },
2723   },
2724   {
2725     { "bound{S|}", { Gv, Ma } },
2726     { "(bad)", { XX } },
2727   },
2728   {
2729     { "arpl", { Ew, Gw } },
2730     { "movs{||lq|xd}", { Gv, Ed } },
2731   },
2732 };
2733
2734 static const struct dis386 three_byte_table[][256] = {
2735   /* THREE_BYTE_0 */
2736   {
2737     /* 00 */
2738     { "pshufb", { MX, EM } },
2739     { "phaddw", { MX, EM } },
2740     { "phaddd", { MX, EM } },
2741     { "phaddsw", { MX, EM } },
2742     { "pmaddubsw", { MX, EM } },
2743     { "phsubw", { MX, EM } },
2744     { "phsubd", { MX, EM } },
2745     { "phsubsw", { MX, EM } },
2746     /* 08 */
2747     { "psignb", { MX, EM } },
2748     { "psignw", { MX, EM } },
2749     { "psignd", { MX, EM } },
2750     { "pmulhrsw", { MX, EM } },
2751     { "(bad)", { XX } },
2752     { "(bad)", { XX } },
2753     { "(bad)", { XX } },
2754     { "(bad)", { XX } },
2755     /* 10 */
2756     { PREGRP39 },
2757     { "(bad)", { XX } },
2758     { "(bad)", { XX } },
2759     { "(bad)", { XX } },
2760     { PREGRP40 },
2761     { PREGRP41 },
2762     { "(bad)", { XX } },
2763     { PREGRP42 },
2764     /* 18 */
2765     { "(bad)", { XX } },
2766     { "(bad)", { XX } },
2767     { "(bad)", { XX } },
2768     { "(bad)", { XX } },
2769     { "pabsb", { MX, EM } },
2770     { "pabsw", { MX, EM } },
2771     { "pabsd", { MX, EM } },
2772     { "(bad)", { XX } },
2773     /* 20 */
2774     { PREGRP43 },
2775     { PREGRP44 },
2776     { PREGRP45 },
2777     { PREGRP46 },
2778     { PREGRP47 },
2779     { PREGRP48 },
2780     { "(bad)", { XX } },
2781     { "(bad)", { XX } },
2782     /* 28 */
2783     { PREGRP49 },
2784     { PREGRP50 },
2785     { PREGRP51 },
2786     { PREGRP52 },
2787     { "(bad)", { XX } },
2788     { "(bad)", { XX } },
2789     { "(bad)", { XX } },
2790     { "(bad)", { XX } },
2791     /* 30 */
2792     { PREGRP53 },
2793     { PREGRP54 },
2794     { PREGRP55 },
2795     { PREGRP56 },
2796     { PREGRP57 },
2797     { PREGRP58 },
2798     { "(bad)", { XX } },
2799     { PREGRP86 },
2800     /* 38 */
2801     { PREGRP59 },
2802     { PREGRP60 },
2803     { PREGRP61 },
2804     { PREGRP62 },
2805     { PREGRP63 },
2806     { PREGRP64 },
2807     { PREGRP65 },
2808     { PREGRP66 },
2809     /* 40 */
2810     { PREGRP67 },
2811     { PREGRP68 },
2812     { "(bad)", { XX } },
2813     { "(bad)", { XX } },
2814     { "(bad)", { XX } },
2815     { "(bad)", { XX } },
2816     { "(bad)", { XX } },
2817     { "(bad)", { XX } },
2818     /* 48 */
2819     { "(bad)", { XX } },
2820     { "(bad)", { XX } },
2821     { "(bad)", { XX } },
2822     { "(bad)", { XX } },
2823     { "(bad)", { XX } },
2824     { "(bad)", { XX } },
2825     { "(bad)", { XX } },
2826     { "(bad)", { XX } },
2827     /* 50 */
2828     { "(bad)", { XX } },
2829     { "(bad)", { XX } },
2830     { "(bad)", { XX } },
2831     { "(bad)", { XX } },
2832     { "(bad)", { XX } },
2833     { "(bad)", { XX } },
2834     { "(bad)", { XX } },
2835     { "(bad)", { XX } },
2836     /* 58 */
2837     { "(bad)", { XX } },
2838     { "(bad)", { XX } },
2839     { "(bad)", { XX } },
2840     { "(bad)", { XX } },
2841     { "(bad)", { XX } },
2842     { "(bad)", { XX } },
2843     { "(bad)", { XX } },
2844     { "(bad)", { XX } },
2845     /* 60 */
2846     { "(bad)", { XX } },
2847     { "(bad)", { XX } },
2848     { "(bad)", { XX } },
2849     { "(bad)", { XX } },
2850     { "(bad)", { XX } },
2851     { "(bad)", { XX } },
2852     { "(bad)", { XX } },
2853     { "(bad)", { XX } },
2854     /* 68 */
2855     { "(bad)", { XX } },
2856     { "(bad)", { XX } },
2857     { "(bad)", { XX } },
2858     { "(bad)", { XX } },
2859     { "(bad)", { XX } },
2860     { "(bad)", { XX } },
2861     { "(bad)", { XX } },
2862     { "(bad)", { XX } },
2863     /* 70 */
2864     { "(bad)", { XX } },
2865     { "(bad)", { XX } },
2866     { "(bad)", { XX } },
2867     { "(bad)", { XX } },
2868     { "(bad)", { XX } },
2869     { "(bad)", { XX } },
2870     { "(bad)", { XX } },
2871     { "(bad)", { XX } },
2872     /* 78 */
2873     { "(bad)", { XX } },
2874     { "(bad)", { XX } },
2875     { "(bad)", { XX } },
2876     { "(bad)", { XX } },
2877     { "(bad)", { XX } },
2878     { "(bad)", { XX } },
2879     { "(bad)", { XX } },
2880     { "(bad)", { XX } },
2881     /* 80 */
2882     { "(bad)", { XX } },
2883     { "(bad)", { XX } },
2884     { "(bad)", { XX } },
2885     { "(bad)", { XX } },
2886     { "(bad)", { XX } },
2887     { "(bad)", { XX } },
2888     { "(bad)", { XX } },
2889     { "(bad)", { XX } },
2890     /* 88 */
2891     { "(bad)", { XX } },
2892     { "(bad)", { XX } },
2893     { "(bad)", { XX } },
2894     { "(bad)", { XX } },
2895     { "(bad)", { XX } },
2896     { "(bad)", { XX } },
2897     { "(bad)", { XX } },
2898     { "(bad)", { XX } },
2899     /* 90 */
2900     { "(bad)", { XX } },
2901     { "(bad)", { XX } },
2902     { "(bad)", { XX } },
2903     { "(bad)", { XX } },
2904     { "(bad)", { XX } },
2905     { "(bad)", { XX } },
2906     { "(bad)", { XX } },
2907     { "(bad)", { XX } },
2908     /* 98 */
2909     { "(bad)", { XX } },
2910     { "(bad)", { XX } },
2911     { "(bad)", { XX } },
2912     { "(bad)", { XX } },
2913     { "(bad)", { XX } },
2914     { "(bad)", { XX } },
2915     { "(bad)", { XX } },
2916     { "(bad)", { XX } },
2917     /* a0 */
2918     { "(bad)", { XX } },
2919     { "(bad)", { XX } },
2920     { "(bad)", { XX } },
2921     { "(bad)", { XX } },
2922     { "(bad)", { XX } },
2923     { "(bad)", { XX } },
2924     { "(bad)", { XX } },
2925     { "(bad)", { XX } },
2926     /* a8 */
2927     { "(bad)", { XX } },
2928     { "(bad)", { XX } },
2929     { "(bad)", { XX } },
2930     { "(bad)", { XX } },
2931     { "(bad)", { XX } },
2932     { "(bad)", { XX } },
2933     { "(bad)", { XX } },
2934     { "(bad)", { XX } },
2935     /* b0 */
2936     { "(bad)", { XX } },
2937     { "(bad)", { XX } },
2938     { "(bad)", { XX } },
2939     { "(bad)", { XX } },
2940     { "(bad)", { XX } },
2941     { "(bad)", { XX } },
2942     { "(bad)", { XX } },
2943     { "(bad)", { XX } },
2944     /* b8 */
2945     { "(bad)", { XX } },
2946     { "(bad)", { XX } },
2947     { "(bad)", { XX } },
2948     { "(bad)", { XX } },
2949     { "(bad)", { XX } },
2950     { "(bad)", { XX } },
2951     { "(bad)", { XX } },
2952     { "(bad)", { XX } },
2953     /* c0 */
2954     { "(bad)", { XX } },
2955     { "(bad)", { XX } },
2956     { "(bad)", { XX } },
2957     { "(bad)", { XX } },
2958     { "(bad)", { XX } },
2959     { "(bad)", { XX } },
2960     { "(bad)", { XX } },
2961     { "(bad)", { XX } },
2962     /* c8 */
2963     { "(bad)", { XX } },
2964     { "(bad)", { XX } },
2965     { "(bad)", { XX } },
2966     { "(bad)", { XX } },
2967     { "(bad)", { XX } },
2968     { "(bad)", { XX } },
2969     { "(bad)", { XX } },
2970     { "(bad)", { XX } },
2971     /* d0 */
2972     { "(bad)", { XX } },
2973     { "(bad)", { XX } },
2974     { "(bad)", { XX } },
2975     { "(bad)", { XX } },
2976     { "(bad)", { XX } },
2977     { "(bad)", { XX } },
2978     { "(bad)", { XX } },
2979     { "(bad)", { XX } },
2980     /* d8 */
2981     { "(bad)", { XX } },
2982     { "(bad)", { XX } },
2983     { "(bad)", { XX } },
2984     { "(bad)", { XX } },
2985     { "(bad)", { XX } },
2986     { "(bad)", { XX } },
2987     { "(bad)", { XX } },
2988     { "(bad)", { XX } },
2989     /* e0 */
2990     { "(bad)", { XX } },
2991     { "(bad)", { XX } },
2992     { "(bad)", { XX } },
2993     { "(bad)", { XX } },
2994     { "(bad)", { XX } },
2995     { "(bad)", { XX } },
2996     { "(bad)", { XX } },
2997     { "(bad)", { XX } },
2998     /* e8 */
2999     { "(bad)", { XX } },
3000     { "(bad)", { XX } },
3001     { "(bad)", { XX } },
3002     { "(bad)", { XX } },
3003     { "(bad)", { XX } },
3004     { "(bad)", { XX } },
3005     { "(bad)", { XX } },
3006     { "(bad)", { XX } },
3007     /* f0 */
3008     { PREGRP87 },
3009     { PREGRP88 },
3010     { "(bad)", { XX } },
3011     { "(bad)", { XX } },
3012     { "(bad)", { XX } },
3013     { "(bad)", { XX } },
3014     { "(bad)", { XX } },
3015     { "(bad)", { XX } },
3016     /* f8 */
3017     { "(bad)", { XX } },
3018     { "(bad)", { XX } },
3019     { "(bad)", { XX } },
3020     { "(bad)", { XX } },
3021     { "(bad)", { XX } },
3022     { "(bad)", { XX } },
3023     { "(bad)", { XX } },
3024     { "(bad)", { XX } },
3025   },
3026   /* THREE_BYTE_1 */
3027   {
3028     /* 00 */
3029     { "(bad)", { XX } },
3030     { "(bad)", { XX } },
3031     { "(bad)", { XX } },
3032     { "(bad)", { XX } },
3033     { "(bad)", { XX } },
3034     { "(bad)", { XX } },
3035     { "(bad)", { XX } },
3036     { "(bad)", { XX } },
3037     /* 08 */
3038     { PREGRP69 },
3039     { PREGRP70 },
3040     { PREGRP71 },
3041     { PREGRP72 },
3042     { PREGRP73 },
3043     { PREGRP74 },
3044     { PREGRP75 },
3045     { "palignr", { MX, EM, Ib } },
3046     /* 10 */
3047     { "(bad)", { XX } },
3048     { "(bad)", { XX } },
3049     { "(bad)", { XX } },
3050     { "(bad)", { XX } },
3051     { PREGRP76 },
3052     { PREGRP77 },
3053     { PREGRP78 },
3054     { PREGRP79 },
3055     /* 18 */
3056     { "(bad)", { XX } },
3057     { "(bad)", { XX } },
3058     { "(bad)", { XX } },
3059     { "(bad)", { XX } },
3060     { "(bad)", { XX } },
3061     { "(bad)", { XX } },
3062     { "(bad)", { XX } },
3063     { "(bad)", { XX } },
3064     /* 20 */
3065     { PREGRP80 },
3066     { PREGRP81 },
3067     { PREGRP82 },
3068     { "(bad)", { XX } },
3069     { "(bad)", { XX } },
3070     { "(bad)", { XX } },
3071     { "(bad)", { XX } },
3072     { "(bad)", { XX } },
3073     /* 28 */
3074     { "(bad)", { XX } },
3075     { "(bad)", { XX } },
3076     { "(bad)", { XX } },
3077     { "(bad)", { XX } },
3078     { "(bad)", { XX } },
3079     { "(bad)", { XX } },
3080     { "(bad)", { XX } },
3081     { "(bad)", { XX } },
3082     /* 30 */
3083     { "(bad)", { XX } },
3084     { "(bad)", { XX } },
3085     { "(bad)", { XX } },
3086     { "(bad)", { XX } },
3087     { "(bad)", { XX } },
3088     { "(bad)", { XX } },
3089     { "(bad)", { XX } },
3090     { "(bad)", { XX } },
3091     /* 38 */
3092     { "(bad)", { XX } },
3093     { "(bad)", { XX } },
3094     { "(bad)", { XX } },
3095     { "(bad)", { XX } },
3096     { "(bad)", { XX } },
3097     { "(bad)", { XX } },
3098     { "(bad)", { XX } },
3099     { "(bad)", { XX } },
3100     /* 40 */
3101     { PREGRP83 },
3102     { PREGRP84 },
3103     { PREGRP85 },
3104     { "(bad)", { XX } },
3105     { "(bad)", { XX } },
3106     { "(bad)", { XX } },
3107     { "(bad)", { XX } },
3108     { "(bad)", { XX } },
3109     /* 48 */
3110     { "(bad)", { XX } },
3111     { "(bad)", { XX } },
3112     { "(bad)", { XX } },
3113     { "(bad)", { XX } },
3114     { "(bad)", { XX } },
3115     { "(bad)", { XX } },
3116     { "(bad)", { XX } },
3117     { "(bad)", { XX } },
3118     /* 50 */
3119     { "(bad)", { XX } },
3120     { "(bad)", { XX } },
3121     { "(bad)", { XX } },
3122     { "(bad)", { XX } },
3123     { "(bad)", { XX } },
3124     { "(bad)", { XX } },
3125     { "(bad)", { XX } },
3126     { "(bad)", { XX } },
3127     /* 58 */
3128     { "(bad)", { XX } },
3129     { "(bad)", { XX } },
3130     { "(bad)", { XX } },
3131     { "(bad)", { XX } },
3132     { "(bad)", { XX } },
3133     { "(bad)", { XX } },
3134     { "(bad)", { XX } },
3135     { "(bad)", { XX } },
3136     /* 60 */
3137     { PREGRP89 },
3138     { PREGRP90 },
3139     { PREGRP91 },
3140     { PREGRP92 },
3141     { "(bad)", { XX } },
3142     { "(bad)", { XX } },
3143     { "(bad)", { XX } },
3144     { "(bad)", { XX } },
3145     /* 68 */
3146     { "(bad)", { XX } },
3147     { "(bad)", { XX } },
3148     { "(bad)", { XX } },
3149     { "(bad)", { XX } },
3150     { "(bad)", { XX } },
3151     { "(bad)", { XX } },
3152     { "(bad)", { XX } },
3153     { "(bad)", { XX } },
3154     /* 70 */
3155     { "(bad)", { XX } },
3156     { "(bad)", { XX } },
3157     { "(bad)", { XX } },
3158     { "(bad)", { XX } },
3159     { "(bad)", { XX } },
3160     { "(bad)", { XX } },
3161     { "(bad)", { XX } },
3162     { "(bad)", { XX } },
3163     /* 78 */
3164     { "(bad)", { XX } },
3165     { "(bad)", { XX } },
3166     { "(bad)", { XX } },
3167     { "(bad)", { XX } },
3168     { "(bad)", { XX } },
3169     { "(bad)", { XX } },
3170     { "(bad)", { XX } },
3171     { "(bad)", { XX } },
3172     /* 80 */
3173     { "(bad)", { XX } },
3174     { "(bad)", { XX } },
3175     { "(bad)", { XX } },
3176     { "(bad)", { XX } },
3177     { "(bad)", { XX } },
3178     { "(bad)", { XX } },
3179     { "(bad)", { XX } },
3180     { "(bad)", { XX } },
3181     /* 88 */
3182     { "(bad)", { XX } },
3183     { "(bad)", { XX } },
3184     { "(bad)", { XX } },
3185     { "(bad)", { XX } },
3186     { "(bad)", { XX } },
3187     { "(bad)", { XX } },
3188     { "(bad)", { XX } },
3189     { "(bad)", { XX } },
3190     /* 90 */
3191     { "(bad)", { XX } },
3192     { "(bad)", { XX } },
3193     { "(bad)", { XX } },
3194     { "(bad)", { XX } },
3195     { "(bad)", { XX } },
3196     { "(bad)", { XX } },
3197     { "(bad)", { XX } },
3198     { "(bad)", { XX } },
3199     /* 98 */
3200     { "(bad)", { XX } },
3201     { "(bad)", { XX } },
3202     { "(bad)", { XX } },
3203     { "(bad)", { XX } },
3204     { "(bad)", { XX } },
3205     { "(bad)", { XX } },
3206     { "(bad)", { XX } },
3207     { "(bad)", { XX } },
3208     /* a0 */
3209     { "(bad)", { XX } },
3210     { "(bad)", { XX } },
3211     { "(bad)", { XX } },
3212     { "(bad)", { XX } },
3213     { "(bad)", { XX } },
3214     { "(bad)", { XX } },
3215     { "(bad)", { XX } },
3216     { "(bad)", { XX } },
3217     /* a8 */
3218     { "(bad)", { XX } },
3219     { "(bad)", { XX } },
3220     { "(bad)", { XX } },
3221     { "(bad)", { XX } },
3222     { "(bad)", { XX } },
3223     { "(bad)", { XX } },
3224     { "(bad)", { XX } },
3225     { "(bad)", { XX } },
3226     /* b0 */
3227     { "(bad)", { XX } },
3228     { "(bad)", { XX } },
3229     { "(bad)", { XX } },
3230     { "(bad)", { XX } },
3231     { "(bad)", { XX } },
3232     { "(bad)", { XX } },
3233     { "(bad)", { XX } },
3234     { "(bad)", { XX } },
3235     /* b8 */
3236     { "(bad)", { XX } },
3237     { "(bad)", { XX } },
3238     { "(bad)", { XX } },
3239     { "(bad)", { XX } },
3240     { "(bad)", { XX } },
3241     { "(bad)", { XX } },
3242     { "(bad)", { XX } },
3243     { "(bad)", { XX } },
3244     /* c0 */
3245     { "(bad)", { XX } },
3246     { "(bad)", { XX } },
3247     { "(bad)", { XX } },
3248     { "(bad)", { XX } },
3249     { "(bad)", { XX } },
3250     { "(bad)", { XX } },
3251     { "(bad)", { XX } },
3252     { "(bad)", { XX } },
3253     /* c8 */
3254     { "(bad)", { XX } },
3255     { "(bad)", { XX } },
3256     { "(bad)", { XX } },
3257     { "(bad)", { XX } },
3258     { "(bad)", { XX } },
3259     { "(bad)", { XX } },
3260     { "(bad)", { XX } },
3261     { "(bad)", { XX } },
3262     /* d0 */
3263     { "(bad)", { XX } },
3264     { "(bad)", { XX } },
3265     { "(bad)", { XX } },
3266     { "(bad)", { XX } },
3267     { "(bad)", { XX } },
3268     { "(bad)", { XX } },
3269     { "(bad)", { XX } },
3270     { "(bad)", { XX } },
3271     /* d8 */
3272     { "(bad)", { XX } },
3273     { "(bad)", { XX } },
3274     { "(bad)", { XX } },
3275     { "(bad)", { XX } },
3276     { "(bad)", { XX } },
3277     { "(bad)", { XX } },
3278     { "(bad)", { XX } },
3279     { "(bad)", { XX } },
3280     /* e0 */
3281     { "(bad)", { XX } },
3282     { "(bad)", { XX } },
3283     { "(bad)", { XX } },
3284     { "(bad)", { XX } },
3285     { "(bad)", { XX } },
3286     { "(bad)", { XX } },
3287     { "(bad)", { XX } },
3288     { "(bad)", { XX } },
3289     /* e8 */
3290     { "(bad)", { XX } },
3291     { "(bad)", { XX } },
3292     { "(bad)", { XX } },
3293     { "(bad)", { XX } },
3294     { "(bad)", { XX } },
3295     { "(bad)", { XX } },
3296     { "(bad)", { XX } },
3297     { "(bad)", { XX } },
3298     /* f0 */
3299     { "(bad)", { XX } },
3300     { "(bad)", { XX } },
3301     { "(bad)", { XX } },
3302     { "(bad)", { XX } },
3303     { "(bad)", { XX } },
3304     { "(bad)", { XX } },
3305     { "(bad)", { XX } },
3306     { "(bad)", { XX } },
3307     /* f8 */
3308     { "(bad)", { XX } },
3309     { "(bad)", { XX } },
3310     { "(bad)", { XX } },
3311     { "(bad)", { XX } },
3312     { "(bad)", { XX } },
3313     { "(bad)", { XX } },
3314     { "(bad)", { XX } },
3315     { "(bad)", { XX } },
3316   }
3317 };
3318
3319 #define INTERNAL_DISASSEMBLER_ERROR _("<internal disassembler error>")
3320
3321 static void
3322 ckprefix (void)
3323 {
3324   int newrex;
3325   rex = 0;
3326   prefixes = 0;
3327   used_prefixes = 0;
3328   rex_used = 0;
3329   while (1)
3330     {
3331       fetch_data(the_info, codep + 1);
3332       newrex = 0;
3333       switch (*codep)
3334         {
3335         /* REX prefixes family.  */
3336         case 0x40:
3337         case 0x41:
3338         case 0x42:
3339         case 0x43:
3340         case 0x44:
3341         case 0x45:
3342         case 0x46:
3343         case 0x47:
3344         case 0x48:
3345         case 0x49:
3346         case 0x4a:
3347         case 0x4b:
3348         case 0x4c:
3349         case 0x4d:
3350         case 0x4e:
3351         case 0x4f:
3352             if (address_mode == mode_64bit)
3353               newrex = *codep;
3354             else
3355               return;
3356           break;
3357         case 0xf3:
3358           prefixes |= PREFIX_REPZ;
3359           break;
3360         case 0xf2:
3361           prefixes |= PREFIX_REPNZ;
3362           break;
3363         case 0xf0:
3364           prefixes |= PREFIX_LOCK;
3365           break;
3366         case 0x2e:
3367           prefixes |= PREFIX_CS;
3368           break;
3369         case 0x36:
3370           prefixes |= PREFIX_SS;
3371           break;
3372         case 0x3e:
3373           prefixes |= PREFIX_DS;
3374           break;
3375         case 0x26:
3376           prefixes |= PREFIX_ES;
3377           break;
3378         case 0x64:
3379           prefixes |= PREFIX_FS;
3380           break;
3381         case 0x65:
3382           prefixes |= PREFIX_GS;
3383           break;
3384         case 0x66:
3385           prefixes |= PREFIX_DATA;
3386           break;
3387         case 0x67:
3388           prefixes |= PREFIX_ADDR;
3389           break;
3390         case FWAIT_OPCODE:
3391           /* fwait is really an instruction.  If there are prefixes
3392              before the fwait, they belong to the fwait, *not* to the
3393              following instruction.  */
3394           if (prefixes || rex)
3395             {
3396               prefixes |= PREFIX_FWAIT;
3397               codep++;
3398               return;
3399             }
3400           prefixes = PREFIX_FWAIT;
3401           break;
3402         default:
3403           return;
3404         }
3405       /* Rex is ignored when followed by another prefix.  */
3406       if (rex)
3407         {
3408           rex_used = rex;
3409           return;
3410         }
3411       rex = newrex;
3412       codep++;
3413     }
3414 }
3415
3416 /* Return the name of the prefix byte PREF, or NULL if PREF is not a
3417    prefix byte.  */
3418
3419 static const char *
3420 prefix_name (int pref, int sizeflag)
3421 {
3422   static const char * const rexes [16] =
3423     {
3424       "rex",            /* 0x40 */
3425       "rex.B",          /* 0x41 */
3426       "rex.X",          /* 0x42 */
3427       "rex.XB",         /* 0x43 */
3428       "rex.R",          /* 0x44 */
3429       "rex.RB",         /* 0x45 */
3430       "rex.RX",         /* 0x46 */
3431       "rex.RXB",        /* 0x47 */
3432       "rex.W",          /* 0x48 */
3433       "rex.WB",         /* 0x49 */
3434       "rex.WX",         /* 0x4a */
3435       "rex.WXB",        /* 0x4b */
3436       "rex.WR",         /* 0x4c */
3437       "rex.WRB",        /* 0x4d */
3438       "rex.WRX",        /* 0x4e */
3439       "rex.WRXB",       /* 0x4f */
3440     };
3441
3442   switch (pref)
3443     {
3444     /* REX prefixes family.  */
3445     case 0x40:
3446     case 0x41:
3447     case 0x42:
3448     case 0x43:
3449     case 0x44:
3450     case 0x45:
3451     case 0x46:
3452     case 0x47:
3453     case 0x48:
3454     case 0x49:
3455     case 0x4a:
3456     case 0x4b:
3457     case 0x4c:
3458     case 0x4d:
3459     case 0x4e:
3460     case 0x4f:
3461       return rexes [pref - 0x40];
3462     case 0xf3:
3463       return "repz";
3464     case 0xf2:
3465       return "repnz";
3466     case 0xf0:
3467       return "lock";
3468     case 0x2e:
3469       return "cs";
3470     case 0x36:
3471       return "ss";
3472     case 0x3e:
3473       return "ds";
3474     case 0x26:
3475       return "es";
3476     case 0x64:
3477       return "fs";
3478     case 0x65:
3479       return "gs";
3480     case 0x66:
3481       return (sizeflag & DFLAG) ? "data16" : "data32";
3482     case 0x67:
3483       if (address_mode == mode_64bit)
3484         return (sizeflag & AFLAG) ? "addr32" : "addr64";
3485       else
3486         return (sizeflag & AFLAG) ? "addr16" : "addr32";
3487     case FWAIT_OPCODE:
3488       return "fwait";
3489     default:
3490       return NULL;
3491     }
3492 }
3493
3494 static char op_out[MAX_OPERANDS][100];
3495 static int op_ad, op_index[MAX_OPERANDS];
3496 static int two_source_ops;
3497 static bfd_vma op_address[MAX_OPERANDS];
3498 static bfd_vma op_riprel[MAX_OPERANDS];
3499 static bfd_vma start_pc;
3500
3501 /*
3502  *   On the 386's of 1988, the maximum length of an instruction is 15 bytes.
3503  *   (see topic "Redundant prefixes" in the "Differences from 8086"
3504  *   section of the "Virtual 8086 Mode" chapter.)
3505  * 'pc' should be the address of this instruction, it will
3506  *   be used to print the target address if this is a relative jump or call
3507  * The function returns the length of this instruction in bytes.
3508  */
3509
3510 static char intel_syntax;
3511 static char open_char;
3512 static char close_char;
3513 static char separator_char;
3514 static char scale_char;
3515
3516 int
3517 print_insn_i386 (bfd_vma pc, disassemble_info *info)
3518 {
3519   intel_syntax = -1;
3520
3521   return print_insn (pc, info);
3522 }
3523
3524 static int
3525 print_insn (bfd_vma pc, disassemble_info *info)
3526 {
3527   const struct dis386 *dp;
3528   int i;
3529   char *op_txt[MAX_OPERANDS];
3530   int needcomma;
3531   unsigned char uses_DATA_prefix, uses_LOCK_prefix;
3532   unsigned char uses_REPNZ_prefix, uses_REPZ_prefix;
3533   int sizeflag;
3534   const char *p;
3535   struct dis_private priv;
3536   unsigned char op;
3537
3538   if (info->mach == bfd_mach_x86_64_intel_syntax
3539       || info->mach == bfd_mach_x86_64)
3540     address_mode = mode_64bit;
3541   else
3542     address_mode = mode_32bit;
3543
3544   if (intel_syntax == (char) -1)
3545     intel_syntax = (info->mach == bfd_mach_i386_i386_intel_syntax
3546                     || info->mach == bfd_mach_x86_64_intel_syntax);
3547
3548   if (info->mach == bfd_mach_i386_i386
3549       || info->mach == bfd_mach_x86_64
3550       || info->mach == bfd_mach_i386_i386_intel_syntax
3551       || info->mach == bfd_mach_x86_64_intel_syntax)
3552     priv.orig_sizeflag = AFLAG | DFLAG;
3553   else if (info->mach == bfd_mach_i386_i8086)
3554     priv.orig_sizeflag = 0;
3555   else
3556     abort ();
3557
3558   for (p = info->disassembler_options; p != NULL; )
3559     {
3560       if (strncmp (p, "x86-64", 6) == 0)
3561         {
3562           address_mode = mode_64bit;
3563           priv.orig_sizeflag = AFLAG | DFLAG;
3564         }
3565       else if (strncmp (p, "i386", 4) == 0)
3566         {
3567           address_mode = mode_32bit;
3568           priv.orig_sizeflag = AFLAG | DFLAG;
3569         }
3570       else if (strncmp (p, "i8086", 5) == 0)
3571         {
3572           address_mode = mode_16bit;
3573           priv.orig_sizeflag = 0;
3574         }
3575       else if (strncmp (p, "intel", 5) == 0)
3576         {
3577           intel_syntax = 1;
3578         }
3579       else if (strncmp (p, "att", 3) == 0)
3580         {
3581           intel_syntax = 0;
3582         }
3583       else if (strncmp (p, "addr", 4) == 0)
3584         {
3585           if (address_mode == mode_64bit)
3586             {
3587               if (p[4] == '3' && p[5] == '2')
3588                 priv.orig_sizeflag &= ~AFLAG;
3589               else if (p[4] == '6' && p[5] == '4')
3590                 priv.orig_sizeflag |= AFLAG;
3591             }
3592           else
3593             {
3594               if (p[4] == '1' && p[5] == '6')
3595                 priv.orig_sizeflag &= ~AFLAG;
3596               else if (p[4] == '3' && p[5] == '2')
3597                 priv.orig_sizeflag |= AFLAG;
3598             }
3599         }
3600       else if (strncmp (p, "data", 4) == 0)
3601         {
3602           if (p[4] == '1' && p[5] == '6')
3603             priv.orig_sizeflag &= ~DFLAG;
3604           else if (p[4] == '3' && p[5] == '2')
3605             priv.orig_sizeflag |= DFLAG;
3606         }
3607       else if (strncmp (p, "suffix", 6) == 0)
3608         priv.orig_sizeflag |= SUFFIX_ALWAYS;
3609
3610       p = strchr (p, ',');
3611       if (p != NULL)
3612         p++;
3613     }
3614
3615   if (intel_syntax)
3616     {
3617       names64 = intel_names64;
3618       names32 = intel_names32;
3619       names16 = intel_names16;
3620       names8 = intel_names8;
3621       names8rex = intel_names8rex;
3622       names_seg = intel_names_seg;
3623       index16 = intel_index16;
3624       open_char = '[';
3625       close_char = ']';
3626       separator_char = '+';
3627       scale_char = '*';
3628     }
3629   else
3630     {
3631       names64 = att_names64;
3632       names32 = att_names32;
3633       names16 = att_names16;
3634       names8 = att_names8;
3635       names8rex = att_names8rex;
3636       names_seg = att_names_seg;
3637       index16 = att_index16;
3638       open_char = '(';
3639       close_char =  ')';
3640       separator_char = ',';
3641       scale_char = ',';
3642     }
3643
3644   /* The output looks better if we put 7 bytes on a line, since that
3645      puts most long word instructions on a single line.  */
3646   info->bytes_per_line = 7;
3647
3648   info->private_data = &priv;
3649   priv.max_fetched = priv.the_buffer;
3650   priv.insn_start = pc;
3651
3652   obuf[0] = 0;
3653   for (i = 0; i < MAX_OPERANDS; ++i)
3654     {
3655       op_out[i][0] = 0;
3656       op_index[i] = -1;
3657     }
3658
3659   the_info = info;
3660   start_pc = pc;
3661   start_codep = priv.the_buffer;
3662   codep = priv.the_buffer;
3663
3664   if (setjmp (priv.bailout) != 0)
3665     {
3666       const char *name;
3667
3668       /* Getting here means we tried for data but didn't get it.  That
3669          means we have an incomplete instruction of some sort.  Just
3670          print the first byte as a prefix or a .byte pseudo-op.  */
3671       if (codep > priv.the_buffer)
3672         {
3673           name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag);
3674           if (name != NULL)
3675             (*info->fprintf_func) (info->stream, "%s", name);
3676           else
3677             {
3678               /* Just print the first byte as a .byte instruction.  */
3679               (*info->fprintf_func) (info->stream, ".byte 0x%x",
3680                                      (unsigned int) priv.the_buffer[0]);
3681             }
3682
3683           return 1;
3684         }
3685
3686       return -1;
3687     }
3688
3689   obufp = obuf;
3690   ckprefix ();
3691
3692   insn_codep = codep;
3693   sizeflag = priv.orig_sizeflag;
3694
3695   fetch_data(info, codep + 1);
3696   two_source_ops = (*codep == 0x62) || (*codep == 0xc8);
3697
3698   if (((prefixes & PREFIX_FWAIT)
3699        && ((*codep < 0xd8) || (*codep > 0xdf)))
3700       || (rex && rex_used))
3701     {
3702       const char *name;
3703
3704       /* fwait not followed by floating point instruction, or rex followed
3705          by other prefixes.  Print the first prefix.  */
3706       name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag);
3707       if (name == NULL)
3708         name = INTERNAL_DISASSEMBLER_ERROR;
3709       (*info->fprintf_func) (info->stream, "%s", name);
3710       return 1;
3711     }
3712
3713   op = 0;
3714   if (*codep == 0x0f)
3715     {
3716       unsigned char threebyte;
3717       fetch_data(info, codep + 2);
3718       threebyte = *++codep;
3719       dp = &dis386_twobyte[threebyte];
3720       need_modrm = twobyte_has_modrm[*codep];
3721       uses_DATA_prefix = twobyte_uses_DATA_prefix[*codep];
3722       uses_REPNZ_prefix = twobyte_uses_REPNZ_prefix[*codep];
3723       uses_REPZ_prefix = twobyte_uses_REPZ_prefix[*codep];
3724       uses_LOCK_prefix = (*codep & ~0x02) == 0x20;
3725       codep++;
3726       if (dp->name == NULL && dp->op[0].bytemode == IS_3BYTE_OPCODE)
3727         {
3728           fetch_data(info, codep + 2);
3729           op = *codep++;
3730           switch (threebyte)
3731             {
3732             case 0x38:
3733               uses_DATA_prefix = threebyte_0x38_uses_DATA_prefix[op];
3734               uses_REPNZ_prefix = threebyte_0x38_uses_REPNZ_prefix[op];
3735               uses_REPZ_prefix = threebyte_0x38_uses_REPZ_prefix[op];
3736               break;
3737             case 0x3a:
3738               uses_DATA_prefix = threebyte_0x3a_uses_DATA_prefix[op];
3739               uses_REPNZ_prefix = threebyte_0x3a_uses_REPNZ_prefix[op];
3740               uses_REPZ_prefix = threebyte_0x3a_uses_REPZ_prefix[op];
3741               break;
3742             default:
3743               break;
3744             }
3745         }
3746     }
3747   else
3748     {
3749       dp = &dis386[*codep];
3750       need_modrm = onebyte_has_modrm[*codep];
3751       uses_DATA_prefix = 0;
3752       uses_REPNZ_prefix = 0;
3753       /* pause is 0xf3 0x90.  */
3754       uses_REPZ_prefix = *codep == 0x90;
3755       uses_LOCK_prefix = 0;
3756       codep++;
3757     }
3758
3759   if (!uses_REPZ_prefix && (prefixes & PREFIX_REPZ))
3760     {
3761       oappend ("repz ");
3762       used_prefixes |= PREFIX_REPZ;
3763     }
3764   if (!uses_REPNZ_prefix && (prefixes & PREFIX_REPNZ))
3765     {
3766       oappend ("repnz ");
3767       used_prefixes |= PREFIX_REPNZ;
3768     }
3769
3770   if (!uses_LOCK_prefix && (prefixes & PREFIX_LOCK))
3771     {
3772       oappend ("lock ");
3773       used_prefixes |= PREFIX_LOCK;
3774     }
3775
3776   if (prefixes & PREFIX_ADDR)
3777     {
3778       sizeflag ^= AFLAG;
3779       if (dp->op[2].bytemode != loop_jcxz_mode || intel_syntax)
3780         {
3781           if ((sizeflag & AFLAG) || address_mode == mode_64bit)
3782             oappend ("addr32 ");
3783           else
3784             oappend ("addr16 ");
3785           used_prefixes |= PREFIX_ADDR;
3786         }
3787     }
3788
3789   if (!uses_DATA_prefix && (prefixes & PREFIX_DATA))
3790     {
3791       sizeflag ^= DFLAG;
3792       if (dp->op[2].bytemode == cond_jump_mode
3793           && dp->op[0].bytemode == v_mode
3794           && !intel_syntax)
3795         {
3796           if (sizeflag & DFLAG)
3797             oappend ("data32 ");
3798           else
3799             oappend ("data16 ");
3800           used_prefixes |= PREFIX_DATA;
3801         }
3802     }
3803
3804   if (dp->name == NULL && dp->op[0].bytemode == IS_3BYTE_OPCODE)
3805     {
3806       dp = &three_byte_table[dp->op[1].bytemode][op];
3807       modrm.mod = (*codep >> 6) & 3;
3808       modrm.reg = (*codep >> 3) & 7;
3809       modrm.rm = *codep & 7;
3810     }
3811   else if (need_modrm)
3812     {
3813       fetch_data(info, codep + 1);
3814       modrm.mod = (*codep >> 6) & 3;
3815       modrm.reg = (*codep >> 3) & 7;
3816       modrm.rm = *codep & 7;
3817     }
3818
3819   if (dp->name == NULL && dp->op[0].bytemode == FLOATCODE)
3820     {
3821       dofloat (sizeflag);
3822     }
3823   else
3824     {
3825       int index;
3826       if (dp->name == NULL)
3827         {
3828           switch (dp->op[0].bytemode)
3829             {
3830             case USE_GROUPS:
3831               dp = &grps[dp->op[1].bytemode][modrm.reg];
3832               break;
3833
3834             case USE_PREFIX_USER_TABLE:
3835               index = 0;
3836               used_prefixes |= (prefixes & PREFIX_REPZ);
3837               if (prefixes & PREFIX_REPZ)
3838                 index = 1;
3839               else
3840                 {
3841                   /* We should check PREFIX_REPNZ and PREFIX_REPZ
3842                      before PREFIX_DATA.  */
3843                   used_prefixes |= (prefixes & PREFIX_REPNZ);
3844                   if (prefixes & PREFIX_REPNZ)
3845                     index = 3;
3846                   else
3847                     {
3848                       used_prefixes |= (prefixes & PREFIX_DATA);
3849                       if (prefixes & PREFIX_DATA)
3850                         index = 2;
3851                     }
3852                 }
3853               dp = &prefix_user_table[dp->op[1].bytemode][index];
3854               break;
3855
3856             case X86_64_SPECIAL:
3857               index = address_mode == mode_64bit ? 1 : 0;
3858               dp = &x86_64_table[dp->op[1].bytemode][index];
3859               break;
3860
3861             default:
3862               oappend (INTERNAL_DISASSEMBLER_ERROR);
3863               break;
3864             }
3865         }
3866
3867       if (putop (dp->name, sizeflag) == 0)
3868         {
3869           for (i = 0; i < MAX_OPERANDS; ++i)
3870             {
3871               obufp = op_out[i];
3872               op_ad = MAX_OPERANDS - 1 - i;
3873               if (dp->op[i].rtn)
3874                 (*dp->op[i].rtn) (dp->op[i].bytemode, sizeflag);
3875             }
3876         }
3877     }
3878
3879   /* See if any prefixes were not used.  If so, print the first one
3880      separately.  If we don't do this, we'll wind up printing an
3881      instruction stream which does not precisely correspond to the
3882      bytes we are disassembling.  */
3883   if ((prefixes & ~used_prefixes) != 0)
3884     {
3885       const char *name;
3886
3887       name = prefix_name (priv.the_buffer[0], priv.orig_sizeflag);
3888       if (name == NULL)
3889         name = INTERNAL_DISASSEMBLER_ERROR;
3890       (*info->fprintf_func) (info->stream, "%s", name);
3891       return 1;
3892     }
3893   if (rex & ~rex_used)
3894     {
3895       const char *name;
3896       name = prefix_name (rex | 0x40, priv.orig_sizeflag);
3897       if (name == NULL)
3898         name = INTERNAL_DISASSEMBLER_ERROR;
3899       (*info->fprintf_func) (info->stream, "%s ", name);
3900     }
3901
3902   obufp = obuf + strlen (obuf);
3903   for (i = strlen (obuf); i < 6; i++)
3904     oappend (" ");
3905   oappend (" ");
3906   (*info->fprintf_func) (info->stream, "%s", obuf);
3907
3908   /* The enter and bound instructions are printed with operands in the same
3909      order as the intel book; everything else is printed in reverse order.  */
3910   if (intel_syntax || two_source_ops)
3911     {
3912       bfd_vma riprel;
3913
3914       for (i = 0; i < MAX_OPERANDS; ++i)
3915         op_txt[i] = op_out[i];
3916
3917       for (i = 0; i < (MAX_OPERANDS >> 1); ++i)
3918         {
3919           op_ad = op_index[i];
3920           op_index[i] = op_index[MAX_OPERANDS - 1 - i];
3921           op_index[MAX_OPERANDS - 1 - i] = op_ad;
3922           riprel = op_riprel[i];
3923           op_riprel[i] = op_riprel [MAX_OPERANDS - 1 - i];
3924           op_riprel[MAX_OPERANDS - 1 - i] = riprel;
3925         }
3926     }
3927   else
3928     {
3929       for (i = 0; i < MAX_OPERANDS; ++i)
3930         op_txt[MAX_OPERANDS - 1 - i] = op_out[i];
3931     }
3932
3933   needcomma = 0;
3934   for (i = 0; i < MAX_OPERANDS; ++i)
3935     if (*op_txt[i])
3936       {
3937         if (needcomma)
3938           (*info->fprintf_func) (info->stream, ",");
3939         if (op_index[i] != -1 && !op_riprel[i])
3940           (*info->print_address_func) ((bfd_vma) op_address[op_index[i]], info);
3941         else
3942           (*info->fprintf_func) (info->stream, "%s", op_txt[i]);
3943         needcomma = 1;
3944       }
3945
3946   for (i = 0; i < MAX_OPERANDS; i++)
3947     if (op_index[i] != -1 && op_riprel[i])
3948       {
3949         (*info->fprintf_func) (info->stream, "        # ");
3950         (*info->print_address_func) ((bfd_vma) (start_pc + codep - start_codep
3951                                                 + op_address[op_index[i]]), info);
3952         break;
3953       }
3954   return codep - priv.the_buffer;
3955 }
3956
3957 static const char *float_mem[] = {
3958   /* d8 */
3959   "fadd{s||s|}",
3960   "fmul{s||s|}",
3961   "fcom{s||s|}",
3962   "fcomp{s||s|}",
3963   "fsub{s||s|}",
3964   "fsubr{s||s|}",
3965   "fdiv{s||s|}",
3966   "fdivr{s||s|}",
3967   /* d9 */
3968   "fld{s||s|}",
3969   "(bad)",
3970   "fst{s||s|}",
3971   "fstp{s||s|}",
3972   "fldenvIC",
3973   "fldcw",
3974   "fNstenvIC",
3975   "fNstcw",
3976   /* da */
3977   "fiadd{l||l|}",
3978   "fimul{l||l|}",
3979   "ficom{l||l|}",
3980   "ficomp{l||l|}",
3981   "fisub{l||l|}",
3982   "fisubr{l||l|}",
3983   "fidiv{l||l|}",
3984   "fidivr{l||l|}",
3985   /* db */
3986   "fild{l||l|}",
3987   "fisttp{l||l|}",
3988   "fist{l||l|}",
3989   "fistp{l||l|}",
3990   "(bad)",
3991   "fld{t||t|}",
3992   "(bad)",
3993   "fstp{t||t|}",
3994   /* dc */
3995   "fadd{l||l|}",
3996   "fmul{l||l|}",
3997   "fcom{l||l|}",
3998   "fcomp{l||l|}",
3999   "fsub{l||l|}",
4000   "fsubr{l||l|}",
4001   "fdiv{l||l|}",
4002   "fdivr{l||l|}",
4003   /* dd */
4004   "fld{l||l|}",
4005   "fisttp{ll||ll|}",
4006   "fst{l||l|}",
4007   "fstp{l||l|}",
4008   "frstorIC",
4009   "(bad)",
4010   "fNsaveIC",
4011   "fNstsw",
4012   /* de */
4013   "fiadd",
4014   "fimul",
4015   "ficom",
4016   "ficomp",
4017   "fisub",
4018   "fisubr",
4019   "fidiv",
4020   "fidivr",
4021   /* df */
4022   "fild",
4023   "fisttp",
4024   "fist",
4025   "fistp",
4026   "fbld",
4027   "fild{ll||ll|}",
4028   "fbstp",
4029   "fistp{ll||ll|}",
4030 };
4031
4032 static const unsigned char float_mem_mode[] = {
4033   /* d8 */
4034   d_mode,
4035   d_mode,
4036   d_mode,
4037   d_mode,
4038   d_mode,
4039   d_mode,
4040   d_mode,
4041   d_mode,
4042   /* d9 */
4043   d_mode,
4044   0,
4045   d_mode,
4046   d_mode,
4047   0,
4048   w_mode,
4049   0,
4050   w_mode,
4051   /* da */
4052   d_mode,
4053   d_mode,
4054   d_mode,
4055   d_mode,
4056   d_mode,
4057   d_mode,
4058   d_mode,
4059   d_mode,
4060   /* db */
4061   d_mode,
4062   d_mode,
4063   d_mode,
4064   d_mode,
4065   0,
4066   t_mode,
4067   0,
4068   t_mode,
4069   /* dc */
4070   q_mode,
4071   q_mode,
4072   q_mode,
4073   q_mode,
4074   q_mode,
4075   q_mode,
4076   q_mode,
4077   q_mode,
4078   /* dd */
4079   q_mode,
4080   q_mode,
4081   q_mode,
4082   q_mode,
4083   0,
4084   0,
4085   0,
4086   w_mode,
4087   /* de */
4088   w_mode,
4089   w_mode,
4090   w_mode,
4091   w_mode,
4092   w_mode,
4093   w_mode,
4094   w_mode,
4095   w_mode,
4096   /* df */
4097   w_mode,
4098   w_mode,
4099   w_mode,
4100   w_mode,
4101   t_mode,
4102   q_mode,
4103   t_mode,
4104   q_mode
4105 };
4106
4107 #define ST { OP_ST, 0 }
4108 #define STi { OP_STi, 0 }
4109
4110 #define FGRPd9_2 NULL, { { NULL, 0 } }
4111 #define FGRPd9_4 NULL, { { NULL, 1 } }
4112 #define FGRPd9_5 NULL, { { NULL, 2 } }
4113 #define FGRPd9_6 NULL, { { NULL, 3 } }
4114 #define FGRPd9_7 NULL, { { NULL, 4 } }
4115 #define FGRPda_5 NULL, { { NULL, 5 } }
4116 #define FGRPdb_4 NULL, { { NULL, 6 } }
4117 #define FGRPde_3 NULL, { { NULL, 7 } }
4118 #define FGRPdf_4 NULL, { { NULL, 8 } }
4119
4120 static const struct dis386 float_reg[][8] = {
4121   /* d8 */
4122   {
4123     { "fadd",   { ST, STi } },
4124     { "fmul",   { ST, STi } },
4125     { "fcom",   { STi } },
4126     { "fcomp",  { STi } },
4127     { "fsub",   { ST, STi } },
4128     { "fsubr",  { ST, STi } },
4129     { "fdiv",   { ST, STi } },
4130     { "fdivr",  { ST, STi } },
4131   },
4132   /* d9 */
4133   {
4134     { "fld",    { STi } },
4135     { "fxch",   { STi } },
4136     { FGRPd9_2 },
4137     { "(bad)",  { XX } },
4138     { FGRPd9_4 },
4139     { FGRPd9_5 },
4140     { FGRPd9_6 },
4141     { FGRPd9_7 },
4142   },
4143   /* da */
4144   {
4145     { "fcmovb", { ST, STi } },
4146     { "fcmove", { ST, STi } },
4147     { "fcmovbe",{ ST, STi } },
4148     { "fcmovu", { ST, STi } },
4149     { "(bad)",  { XX } },
4150     { FGRPda_5 },
4151     { "(bad)",  { XX } },
4152     { "(bad)",  { XX } },
4153   },
4154   /* db */
4155   {
4156     { "fcmovnb",{ ST, STi } },
4157     { "fcmovne",{ ST, STi } },
4158     { "fcmovnbe",{ ST, STi } },
4159     { "fcmovnu",{ ST, STi } },
4160     { FGRPdb_4 },
4161     { "fucomi", { ST, STi } },
4162     { "fcomi",  { ST, STi } },
4163     { "(bad)",  { XX } },
4164   },
4165   /* dc */
4166   {
4167     { "fadd",   { STi, ST } },
4168     { "fmul",   { STi, ST } },
4169     { "(bad)",  { XX } },
4170     { "(bad)",  { XX } },
4171 #if SYSV386_COMPAT
4172     { "fsub",   { STi, ST } },
4173     { "fsubr",  { STi, ST } },
4174     { "fdiv",   { STi, ST } },
4175     { "fdivr",  { STi, ST } },
4176 #else
4177     { "fsubr",  { STi, ST } },
4178     { "fsub",   { STi, ST } },
4179     { "fdivr",  { STi, ST } },
4180     { "fdiv",   { STi, ST } },
4181 #endif
4182   },
4183   /* dd */
4184   {
4185     { "ffree",  { STi } },
4186     { "(bad)",  { XX } },
4187     { "fst",    { STi } },
4188     { "fstp",   { STi } },
4189     { "fucom",  { STi } },
4190     { "fucomp", { STi } },
4191     { "(bad)",  { XX } },
4192     { "(bad)",  { XX } },
4193   },
4194   /* de */
4195   {
4196     { "faddp",  { STi, ST } },
4197     { "fmulp",  { STi, ST } },
4198     { "(bad)",  { XX } },
4199     { FGRPde_3 },
4200 #if SYSV386_COMPAT
4201     { "fsubp",  { STi, ST } },
4202     { "fsubrp", { STi, ST } },
4203     { "fdivp",  { STi, ST } },
4204     { "fdivrp", { STi, ST } },
4205 #else
4206     { "fsubrp", { STi, ST } },
4207     { "fsubp",  { STi, ST } },
4208     { "fdivrp", { STi, ST } },
4209     { "fdivp",  { STi, ST } },
4210 #endif
4211   },
4212   /* df */
4213   {
4214     { "ffreep", { STi } },
4215     { "(bad)",  { XX } },
4216     { "(bad)",  { XX } },
4217     { "(bad)",  { XX } },
4218     { FGRPdf_4 },
4219     { "fucomip", { ST, STi } },
4220     { "fcomip", { ST, STi } },
4221     { "(bad)",  { XX } },
4222   },
4223 };
4224
4225 static const char *fgrps[][8] = {
4226   /* d9_2  0 */
4227   {
4228     "fnop","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
4229   },
4230
4231   /* d9_4  1 */
4232   {
4233     "fchs","fabs","(bad)","(bad)","ftst","fxam","(bad)","(bad)",
4234   },
4235
4236   /* d9_5  2 */
4237   {
4238     "fld1","fldl2t","fldl2e","fldpi","fldlg2","fldln2","fldz","(bad)",
4239   },
4240
4241   /* d9_6  3 */
4242   {
4243     "f2xm1","fyl2x","fptan","fpatan","fxtract","fprem1","fdecstp","fincstp",
4244   },
4245
4246   /* d9_7  4 */
4247   {
4248     "fprem","fyl2xp1","fsqrt","fsincos","frndint","fscale","fsin","fcos",
4249   },
4250
4251   /* da_5  5 */
4252   {
4253     "(bad)","fucompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
4254   },
4255
4256   /* db_4  6 */
4257   {
4258     "feni(287 only)","fdisi(287 only)","fNclex","fNinit",
4259     "fNsetpm(287 only)","(bad)","(bad)","(bad)",
4260   },
4261
4262   /* de_3  7 */
4263   {
4264     "(bad)","fcompp","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
4265   },
4266
4267   /* df_4  8 */
4268   {
4269     "fNstsw","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)","(bad)",
4270   },
4271 };
4272
4273 static void
4274 dofloat (int sizeflag)
4275 {
4276   const struct dis386 *dp;
4277   unsigned char floatop;
4278
4279   floatop = codep[-1];
4280
4281   if (modrm.mod != 3)
4282     {
4283       int fp_indx = (floatop - 0xd8) * 8 + modrm.reg;
4284
4285       putop (float_mem[fp_indx], sizeflag);
4286       obufp = op_out[0];
4287       op_ad = 2;
4288       OP_E (float_mem_mode[fp_indx], sizeflag);
4289       return;
4290     }
4291   /* Skip mod/rm byte.  */
4292   MODRM_CHECK;
4293   codep++;
4294
4295   dp = &float_reg[floatop - 0xd8][modrm.reg];
4296   if (dp->name == NULL)
4297     {
4298       putop (fgrps[dp->op[0].bytemode][modrm.rm], sizeflag);
4299
4300       /* Instruction fnstsw is only one with strange arg.  */
4301       if (floatop == 0xdf && codep[-1] == 0xe0)
4302         pstrcpy (op_out[0], sizeof(op_out[0]), names16[0]);
4303     }
4304   else
4305     {
4306       putop (dp->name, sizeflag);
4307
4308       obufp = op_out[0];
4309       op_ad = 2;
4310       if (dp->op[0].rtn)
4311         (*dp->op[0].rtn) (dp->op[0].bytemode, sizeflag);
4312
4313       obufp = op_out[1];
4314       op_ad = 1;
4315       if (dp->op[1].rtn)
4316         (*dp->op[1].rtn) (dp->op[1].bytemode, sizeflag);
4317     }
4318 }
4319
4320 static void
4321 OP_ST (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
4322 {
4323   oappend ("%st" + intel_syntax);
4324 }
4325
4326 static void
4327 OP_STi (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
4328 {
4329   snprintf (scratchbuf, sizeof(scratchbuf), "%%st(%d)", modrm.rm);
4330   oappend (scratchbuf + intel_syntax);
4331 }
4332
4333 /* Capital letters in template are macros.  */
4334 static int
4335 putop (const char *template, int sizeflag)
4336 {
4337   const char *p;
4338   int alt = 0;
4339
4340   for (p = template; *p; p++)
4341     {
4342       switch (*p)
4343         {
4344         default:
4345           *obufp++ = *p;
4346           break;
4347         case '{':
4348           alt = 0;
4349           if (intel_syntax)
4350             alt += 1;
4351           if (address_mode == mode_64bit)
4352             alt += 2;
4353           while (alt != 0)
4354             {
4355               while (*++p != '|')
4356                 {
4357                   if (*p == '}')
4358                     {
4359                       /* Alternative not valid.  */
4360                       pstrcpy (obuf, sizeof(obuf), "(bad)");
4361                       obufp = obuf + 5;
4362                       return 1;
4363                     }
4364                   else if (*p == '\0')
4365                     abort ();
4366                 }
4367               alt--;
4368             }
4369           /* Fall through.  */
4370         case 'I':
4371           alt = 1;
4372           continue;
4373         case '|':
4374           while (*++p != '}')
4375             {
4376               if (*p == '\0')
4377                 abort ();
4378             }
4379           break;
4380         case '}':
4381           break;
4382         case 'A':
4383           if (intel_syntax)
4384             break;
4385           if (modrm.mod != 3 || (sizeflag & SUFFIX_ALWAYS))
4386             *obufp++ = 'b';
4387           break;
4388         case 'B':
4389           if (intel_syntax)
4390             break;
4391           if (sizeflag & SUFFIX_ALWAYS)
4392             *obufp++ = 'b';
4393           break;
4394         case 'C':
4395           if (intel_syntax && !alt)
4396             break;
4397           if ((prefixes & PREFIX_DATA) || (sizeflag & SUFFIX_ALWAYS))
4398             {
4399               if (sizeflag & DFLAG)
4400                 *obufp++ = intel_syntax ? 'd' : 'l';
4401               else
4402                 *obufp++ = intel_syntax ? 'w' : 's';
4403               used_prefixes |= (prefixes & PREFIX_DATA);
4404             }
4405           break;
4406         case 'D':
4407           if (intel_syntax || !(sizeflag & SUFFIX_ALWAYS))
4408             break;
4409           USED_REX (REX_W);
4410           if (modrm.mod == 3)
4411             {
4412               if (rex & REX_W)
4413                 *obufp++ = 'q';
4414               else if (sizeflag & DFLAG)
4415                 *obufp++ = intel_syntax ? 'd' : 'l';
4416               else
4417                 *obufp++ = 'w';
4418               used_prefixes |= (prefixes & PREFIX_DATA);
4419             }
4420           else
4421             *obufp++ = 'w';
4422           break;
4423         case 'E':               /* For jcxz/jecxz */
4424           if (address_mode == mode_64bit)
4425             {
4426               if (sizeflag & AFLAG)
4427                 *obufp++ = 'r';
4428               else
4429                 *obufp++ = 'e';
4430             }
4431           else
4432             if (sizeflag & AFLAG)
4433               *obufp++ = 'e';
4434           used_prefixes |= (prefixes & PREFIX_ADDR);
4435           break;
4436         case 'F':
4437           if (intel_syntax)
4438             break;
4439           if ((prefixes & PREFIX_ADDR) || (sizeflag & SUFFIX_ALWAYS))
4440             {
4441               if (sizeflag & AFLAG)
4442                 *obufp++ = address_mode == mode_64bit ? 'q' : 'l';
4443               else
4444                 *obufp++ = address_mode == mode_64bit ? 'l' : 'w';
4445               used_prefixes |= (prefixes & PREFIX_ADDR);
4446             }
4447           break;
4448         case 'G':
4449           if (intel_syntax || (obufp[-1] != 's' && !(sizeflag & SUFFIX_ALWAYS)))
4450             break;
4451           if ((rex & REX_W) || (sizeflag & DFLAG))
4452             *obufp++ = 'l';
4453           else
4454             *obufp++ = 'w';
4455           if (!(rex & REX_W))
4456             used_prefixes |= (prefixes & PREFIX_DATA);
4457           break;
4458         case 'H':
4459           if (intel_syntax)
4460             break;
4461           if ((prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_CS
4462               || (prefixes & (PREFIX_CS | PREFIX_DS)) == PREFIX_DS)
4463             {
4464               used_prefixes |= prefixes & (PREFIX_CS | PREFIX_DS);
4465               *obufp++ = ',';
4466               *obufp++ = 'p';
4467               if (prefixes & PREFIX_DS)
4468                 *obufp++ = 't';
4469               else
4470                 *obufp++ = 'n';
4471             }
4472           break;
4473         case 'J':
4474           if (intel_syntax)
4475             break;
4476           *obufp++ = 'l';
4477           break;
4478         case 'K':
4479           USED_REX (REX_W);
4480           if (rex & REX_W)
4481             *obufp++ = 'q';
4482           else
4483             *obufp++ = 'd';
4484           break;
4485         case 'Z':
4486           if (intel_syntax)
4487             break;
4488           if (address_mode == mode_64bit && (sizeflag & SUFFIX_ALWAYS))
4489             {
4490               *obufp++ = 'q';
4491               break;
4492             }
4493           /* Fall through.  */
4494         case 'L':
4495           if (intel_syntax)
4496             break;
4497           if (sizeflag & SUFFIX_ALWAYS)
4498             *obufp++ = 'l';
4499           break;
4500         case 'N':
4501           if ((prefixes & PREFIX_FWAIT) == 0)
4502             *obufp++ = 'n';
4503           else
4504             used_prefixes |= PREFIX_FWAIT;
4505           break;
4506         case 'O':
4507           USED_REX (REX_W);
4508           if (rex & REX_W)
4509             *obufp++ = 'o';
4510           else if (intel_syntax && (sizeflag & DFLAG))
4511             *obufp++ = 'q';
4512           else
4513             *obufp++ = 'd';
4514           if (!(rex & REX_W))
4515             used_prefixes |= (prefixes & PREFIX_DATA);
4516           break;
4517         case 'T':
4518           if (intel_syntax)
4519             break;
4520           if (address_mode == mode_64bit && (sizeflag & DFLAG))
4521             {
4522               *obufp++ = 'q';
4523               break;
4524             }
4525           /* Fall through.  */
4526         case 'P':
4527           if (intel_syntax)
4528             break;
4529           if ((prefixes & PREFIX_DATA)
4530               || (rex & REX_W)
4531               || (sizeflag & SUFFIX_ALWAYS))
4532             {
4533               USED_REX (REX_W);
4534               if (rex & REX_W)
4535                 *obufp++ = 'q';
4536               else
4537                 {
4538                    if (sizeflag & DFLAG)
4539                       *obufp++ = 'l';
4540                    else
4541                      *obufp++ = 'w';
4542                 }
4543               used_prefixes |= (prefixes & PREFIX_DATA);
4544             }
4545           break;
4546         case 'U':
4547           if (intel_syntax)
4548             break;
4549           if (address_mode == mode_64bit && (sizeflag & DFLAG))
4550             {
4551               if (modrm.mod != 3 || (sizeflag & SUFFIX_ALWAYS))
4552                 *obufp++ = 'q';
4553               break;
4554             }
4555           /* Fall through.  */
4556         case 'Q':
4557           if (intel_syntax && !alt)
4558             break;
4559           USED_REX (REX_W);
4560           if (modrm.mod != 3 || (sizeflag & SUFFIX_ALWAYS))
4561             {
4562               if (rex & REX_W)
4563                 *obufp++ = 'q';
4564               else
4565                 {
4566                   if (sizeflag & DFLAG)
4567                     *obufp++ = intel_syntax ? 'd' : 'l';
4568                   else
4569                     *obufp++ = 'w';
4570                 }
4571               used_prefixes |= (prefixes & PREFIX_DATA);
4572             }
4573           break;
4574         case 'R':
4575           USED_REX (REX_W);
4576           if (rex & REX_W)
4577             *obufp++ = 'q';
4578           else if (sizeflag & DFLAG)
4579             {
4580               if (intel_syntax)
4581                   *obufp++ = 'd';
4582               else
4583                   *obufp++ = 'l';
4584             }
4585           else
4586             *obufp++ = 'w';
4587           if (intel_syntax && !p[1]
4588               && ((rex & REX_W) || (sizeflag & DFLAG)))
4589             *obufp++ = 'e';
4590           if (!(rex & REX_W))
4591             used_prefixes |= (prefixes & PREFIX_DATA);
4592           break;
4593         case 'V':
4594           if (intel_syntax)
4595             break;
4596           if (address_mode == mode_64bit && (sizeflag & DFLAG))
4597             {
4598               if (sizeflag & SUFFIX_ALWAYS)
4599                 *obufp++ = 'q';
4600               break;
4601             }
4602           /* Fall through.  */
4603         case 'S':
4604           if (intel_syntax)
4605             break;
4606           if (sizeflag & SUFFIX_ALWAYS)
4607             {
4608               if (rex & REX_W)
4609                 *obufp++ = 'q';
4610               else
4611                 {
4612                   if (sizeflag & DFLAG)
4613                     *obufp++ = 'l';
4614                   else
4615                     *obufp++ = 'w';
4616                   used_prefixes |= (prefixes & PREFIX_DATA);
4617                 }
4618             }
4619           break;
4620         case 'X':
4621           if (prefixes & PREFIX_DATA)
4622             *obufp++ = 'd';
4623           else
4624             *obufp++ = 's';
4625           used_prefixes |= (prefixes & PREFIX_DATA);
4626           break;
4627         case 'Y':
4628           if (intel_syntax)
4629             break;
4630           if (rex & REX_W)
4631             {
4632               USED_REX (REX_W);
4633               *obufp++ = 'q';
4634             }
4635           break;
4636           /* implicit operand size 'l' for i386 or 'q' for x86-64 */
4637         case 'W':
4638           /* operand size flag for cwtl, cbtw */
4639           USED_REX (REX_W);
4640           if (rex & REX_W)
4641             {
4642               if (intel_syntax)
4643                 *obufp++ = 'd';
4644               else
4645                 *obufp++ = 'l';
4646             }
4647           else if (sizeflag & DFLAG)
4648             *obufp++ = 'w';
4649           else
4650             *obufp++ = 'b';
4651           if (!(rex & REX_W))
4652             used_prefixes |= (prefixes & PREFIX_DATA);
4653           break;
4654         }
4655       alt = 0;
4656     }
4657   *obufp = 0;
4658   return 0;
4659 }
4660
4661 static void
4662 oappend (const char *s)
4663 {
4664   strcpy (obufp, s);
4665   obufp += strlen (s);
4666 }
4667
4668 static void
4669 append_seg (void)
4670 {
4671   if (prefixes & PREFIX_CS)
4672     {
4673       used_prefixes |= PREFIX_CS;
4674       oappend ("%cs:" + intel_syntax);
4675     }
4676   if (prefixes & PREFIX_DS)
4677     {
4678       used_prefixes |= PREFIX_DS;
4679       oappend ("%ds:" + intel_syntax);
4680     }
4681   if (prefixes & PREFIX_SS)
4682     {
4683       used_prefixes |= PREFIX_SS;
4684       oappend ("%ss:" + intel_syntax);
4685     }
4686   if (prefixes & PREFIX_ES)
4687     {
4688       used_prefixes |= PREFIX_ES;
4689       oappend ("%es:" + intel_syntax);
4690     }
4691   if (prefixes & PREFIX_FS)
4692     {
4693       used_prefixes |= PREFIX_FS;
4694       oappend ("%fs:" + intel_syntax);
4695     }
4696   if (prefixes & PREFIX_GS)
4697     {
4698       used_prefixes |= PREFIX_GS;
4699       oappend ("%gs:" + intel_syntax);
4700     }
4701 }
4702
4703 static void
4704 OP_indirE (int bytemode, int sizeflag)
4705 {
4706   if (!intel_syntax)
4707     oappend ("*");
4708   OP_E (bytemode, sizeflag);
4709 }
4710
4711 static void
4712 print_operand_value (char *buf, size_t bufsize, int hex, bfd_vma disp)
4713 {
4714   if (address_mode == mode_64bit)
4715     {
4716       if (hex)
4717         {
4718           char tmp[30];
4719           int i;
4720           buf[0] = '0';
4721           buf[1] = 'x';
4722           snprintf_vma (tmp, sizeof(tmp), disp);
4723           for (i = 0; tmp[i] == '0' && tmp[i + 1]; i++);
4724           pstrcpy (buf + 2, bufsize - 2, tmp + i);
4725         }
4726       else
4727         {
4728           bfd_signed_vma v = disp;
4729           char tmp[30];
4730           int i;
4731           if (v < 0)
4732             {
4733               *(buf++) = '-';
4734               v = -disp;
4735               /* Check for possible overflow on 0x8000000000000000.  */
4736               if (v < 0)
4737                 {
4738                   pstrcpy (buf, bufsize, "9223372036854775808");
4739                   return;
4740                 }
4741             }
4742           if (!v)
4743             {
4744                 pstrcpy (buf, bufsize, "0");
4745               return;
4746             }
4747
4748           i = 0;
4749           tmp[29] = 0;
4750           while (v)
4751             {
4752               tmp[28 - i] = (v % 10) + '0';
4753               v /= 10;
4754               i++;
4755             }
4756           pstrcpy (buf, bufsize, tmp + 29 - i);
4757         }
4758     }
4759   else
4760     {
4761       if (hex)
4762         snprintf (buf, bufsize, "0x%x", (unsigned int) disp);
4763       else
4764         snprintf (buf, bufsize, "%d", (int) disp);
4765     }
4766 }
4767
4768 /* Put DISP in BUF as signed hex number.  */
4769
4770 static void
4771 print_displacement (char *buf, bfd_vma disp)
4772 {
4773   bfd_signed_vma val = disp;
4774   char tmp[30];
4775   int i, j = 0;
4776
4777   if (val < 0)
4778     {
4779       buf[j++] = '-';
4780       val = -disp;
4781
4782       /* Check for possible overflow.  */
4783       if (val < 0)
4784         {
4785           switch (address_mode)
4786             {
4787             case mode_64bit:
4788               strcpy (buf + j, "0x8000000000000000");
4789               break;
4790             case mode_32bit:
4791               strcpy (buf + j, "0x80000000");
4792               break;
4793             case mode_16bit:
4794               strcpy (buf + j, "0x8000");
4795               break;
4796             }
4797           return;
4798         }
4799     }
4800
4801   buf[j++] = '0';
4802   buf[j++] = 'x';
4803
4804   snprintf_vma (tmp, sizeof(tmp), val);
4805   for (i = 0; tmp[i] == '0'; i++)
4806     continue;
4807   if (tmp[i] == '\0')
4808     i--;
4809   strcpy (buf + j, tmp + i);
4810 }
4811
4812 static void
4813 intel_operand_size (int bytemode, int sizeflag)
4814 {
4815   switch (bytemode)
4816     {
4817     case b_mode:
4818     case dqb_mode:
4819       oappend ("BYTE PTR ");
4820       break;
4821     case w_mode:
4822     case dqw_mode:
4823       oappend ("WORD PTR ");
4824       break;
4825     case stack_v_mode:
4826       if (address_mode == mode_64bit && (sizeflag & DFLAG))
4827         {
4828           oappend ("QWORD PTR ");
4829           used_prefixes |= (prefixes & PREFIX_DATA);
4830           break;
4831         }
4832       /* FALLTHRU */
4833     case v_mode:
4834     case dq_mode:
4835       USED_REX (REX_W);
4836       if (rex & REX_W)
4837         oappend ("QWORD PTR ");
4838       else if ((sizeflag & DFLAG) || bytemode == dq_mode)
4839         oappend ("DWORD PTR ");
4840       else
4841         oappend ("WORD PTR ");
4842       used_prefixes |= (prefixes & PREFIX_DATA);
4843       break;
4844     case z_mode:
4845       if ((rex & REX_W) || (sizeflag & DFLAG))
4846         *obufp++ = 'D';
4847       oappend ("WORD PTR ");
4848       if (!(rex & REX_W))
4849         used_prefixes |= (prefixes & PREFIX_DATA);
4850       break;
4851     case d_mode:
4852     case dqd_mode:
4853       oappend ("DWORD PTR ");
4854       break;
4855     case q_mode:
4856       oappend ("QWORD PTR ");
4857       break;
4858     case m_mode:
4859       if (address_mode == mode_64bit)
4860         oappend ("QWORD PTR ");
4861       else
4862         oappend ("DWORD PTR ");
4863       break;
4864     case f_mode:
4865       if (sizeflag & DFLAG)
4866         oappend ("FWORD PTR ");
4867       else
4868         oappend ("DWORD PTR ");
4869       used_prefixes |= (prefixes & PREFIX_DATA);
4870       break;
4871     case t_mode:
4872       oappend ("TBYTE PTR ");
4873       break;
4874     case x_mode:
4875       oappend ("XMMWORD PTR ");
4876       break;
4877     case o_mode:
4878       oappend ("OWORD PTR ");
4879       break;
4880     default:
4881       break;
4882     }
4883 }
4884
4885 static void
4886 OP_E (int bytemode, int sizeflag)
4887 {
4888   bfd_vma disp;
4889   int add = 0;
4890   int riprel = 0;
4891   USED_REX (REX_B);
4892   if (rex & REX_B)
4893     add += 8;
4894
4895   /* Skip mod/rm byte.  */
4896   MODRM_CHECK;
4897   codep++;
4898
4899   if (modrm.mod == 3)
4900     {
4901       switch (bytemode)
4902         {
4903         case b_mode:
4904           USED_REX (0);
4905           if (rex)
4906             oappend (names8rex[modrm.rm + add]);
4907           else
4908             oappend (names8[modrm.rm + add]);
4909           break;
4910         case w_mode:
4911           oappend (names16[modrm.rm + add]);
4912           break;
4913         case d_mode:
4914           oappend (names32[modrm.rm + add]);
4915           break;
4916         case q_mode:
4917           oappend (names64[modrm.rm + add]);
4918           break;
4919         case m_mode:
4920           if (address_mode == mode_64bit)
4921             oappend (names64[modrm.rm + add]);
4922           else
4923             oappend (names32[modrm.rm + add]);
4924           break;
4925         case stack_v_mode:
4926           if (address_mode == mode_64bit && (sizeflag & DFLAG))
4927             {
4928               oappend (names64[modrm.rm + add]);
4929               used_prefixes |= (prefixes & PREFIX_DATA);
4930               break;
4931             }
4932           bytemode = v_mode;
4933           /* FALLTHRU */
4934         case v_mode:
4935         case dq_mode:
4936         case dqb_mode:
4937         case dqd_mode:
4938         case dqw_mode:
4939           USED_REX (REX_W);
4940           if (rex & REX_W)
4941             oappend (names64[modrm.rm + add]);
4942           else if ((sizeflag & DFLAG) || bytemode != v_mode)
4943             oappend (names32[modrm.rm + add]);
4944           else
4945             oappend (names16[modrm.rm + add]);
4946           used_prefixes |= (prefixes & PREFIX_DATA);
4947           break;
4948         case 0:
4949           break;
4950         default:
4951           oappend (INTERNAL_DISASSEMBLER_ERROR);
4952           break;
4953         }
4954       return;
4955     }
4956
4957   disp = 0;
4958   if (intel_syntax)
4959     intel_operand_size (bytemode, sizeflag);
4960   append_seg ();
4961
4962   if ((sizeflag & AFLAG) || address_mode == mode_64bit)
4963     {
4964       /* 32/64 bit address mode */
4965       int havedisp;
4966       int havesib;
4967       int havebase;
4968       int base;
4969       int index = 0;
4970       int scale = 0;
4971
4972       havesib = 0;
4973       havebase = 1;
4974       base = modrm.rm;
4975
4976       if (base == 4)
4977         {
4978           havesib = 1;
4979           fetch_data(the_info, codep + 1);
4980           index = (*codep >> 3) & 7;
4981           if (address_mode == mode_64bit || index != 0x4)
4982             /* When INDEX == 0x4 in 32 bit mode, SCALE is ignored.  */
4983             scale = (*codep >> 6) & 3;
4984           base = *codep & 7;
4985           USED_REX (REX_X);
4986           if (rex & REX_X)
4987             index += 8;
4988           codep++;
4989         }
4990       base += add;
4991
4992       switch (modrm.mod)
4993         {
4994         case 0:
4995           if ((base & 7) == 5)
4996             {
4997               havebase = 0;
4998               if (address_mode == mode_64bit && !havesib)
4999                 riprel = 1;
5000               disp = get32s ();
5001             }
5002           break;
5003         case 1:
5004           fetch_data (the_info, codep + 1);
5005           disp = *codep++;
5006           if ((disp & 0x80) != 0)
5007             disp -= 0x100;
5008           break;
5009         case 2:
5010           disp = get32s ();
5011           break;
5012         }
5013
5014       havedisp = havebase || (havesib && (index != 4 || scale != 0));
5015
5016       if (!intel_syntax)
5017         if (modrm.mod != 0 || (base & 7) == 5)
5018           {
5019             if (havedisp || riprel)
5020               print_displacement (scratchbuf, disp);
5021             else
5022               print_operand_value (scratchbuf, sizeof(scratchbuf), 1, disp);
5023             oappend (scratchbuf);
5024             if (riprel)
5025               {
5026                 set_op (disp, 1);
5027                 oappend ("(%rip)");
5028               }
5029           }
5030
5031       if (havedisp || (intel_syntax && riprel))
5032         {
5033           *obufp++ = open_char;
5034           if (intel_syntax && riprel)
5035             {
5036               set_op (disp, 1);
5037               oappend ("rip");
5038             }
5039           *obufp = '\0';
5040           if (havebase)
5041             oappend (address_mode == mode_64bit && (sizeflag & AFLAG)
5042                      ? names64[base] : names32[base]);
5043           if (havesib)
5044             {
5045               if (index != 4)
5046                 {
5047                   if (!intel_syntax || havebase)
5048                     {
5049                       *obufp++ = separator_char;
5050                       *obufp = '\0';
5051                     }
5052                   oappend (address_mode == mode_64bit && (sizeflag & AFLAG)
5053                            ? names64[index] : names32[index]);
5054                 }
5055               if (scale != 0 || (!intel_syntax && index != 4))
5056                 {
5057                   *obufp++ = scale_char;
5058                   *obufp = '\0';
5059                   snprintf (scratchbuf, sizeof(scratchbuf), "%d", 1 << scale);
5060                   oappend (scratchbuf);
5061                 }
5062             }
5063           if (intel_syntax
5064               && (disp || modrm.mod != 0 || (base & 7) == 5))
5065             {
5066               if ((bfd_signed_vma) disp >= 0)
5067                 {
5068                   *obufp++ = '+';
5069                   *obufp = '\0';
5070                 }
5071               else if (modrm.mod != 1)
5072                 {
5073                   *obufp++ = '-';
5074                   *obufp = '\0';
5075                   disp = - (bfd_signed_vma) disp;
5076                 }
5077
5078               print_displacement (scratchbuf, disp);
5079               oappend (scratchbuf);
5080             }
5081
5082           *obufp++ = close_char;
5083           *obufp = '\0';
5084         }
5085       else if (intel_syntax)
5086         {
5087           if (modrm.mod != 0 || (base & 7) == 5)
5088             {
5089               if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5090                               | PREFIX_ES | PREFIX_FS | PREFIX_GS))
5091                 ;
5092               else
5093                 {
5094                   oappend (names_seg[ds_reg - es_reg]);
5095                   oappend (":");
5096                 }
5097               print_operand_value (scratchbuf, sizeof(scratchbuf), 1, disp);
5098               oappend (scratchbuf);
5099             }
5100         }
5101     }
5102   else
5103     { /* 16 bit address mode */
5104       switch (modrm.mod)
5105         {
5106         case 0:
5107           if (modrm.rm == 6)
5108             {
5109               disp = get16 ();
5110               if ((disp & 0x8000) != 0)
5111                 disp -= 0x10000;
5112             }
5113           break;
5114         case 1:
5115           fetch_data(the_info, codep + 1);
5116           disp = *codep++;
5117           if ((disp & 0x80) != 0)
5118             disp -= 0x100;
5119           break;
5120         case 2:
5121           disp = get16 ();
5122           if ((disp & 0x8000) != 0)
5123             disp -= 0x10000;
5124           break;
5125         }
5126
5127       if (!intel_syntax)
5128         if (modrm.mod != 0 || modrm.rm == 6)
5129           {
5130             print_displacement (scratchbuf, disp);
5131             oappend (scratchbuf);
5132           }
5133
5134       if (modrm.mod != 0 || modrm.rm != 6)
5135         {
5136           *obufp++ = open_char;
5137           *obufp = '\0';
5138           oappend (index16[modrm.rm]);
5139           if (intel_syntax
5140               && (disp || modrm.mod != 0 || modrm.rm == 6))
5141             {
5142               if ((bfd_signed_vma) disp >= 0)
5143                 {
5144                   *obufp++ = '+';
5145                   *obufp = '\0';
5146                 }
5147               else if (modrm.mod != 1)
5148                 {
5149                   *obufp++ = '-';
5150                   *obufp = '\0';
5151                   disp = - (bfd_signed_vma) disp;
5152                 }
5153
5154               print_displacement (scratchbuf, disp);
5155               oappend (scratchbuf);
5156             }
5157
5158           *obufp++ = close_char;
5159           *obufp = '\0';
5160         }
5161       else if (intel_syntax)
5162         {
5163           if (prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5164                           | PREFIX_ES | PREFIX_FS | PREFIX_GS))
5165             ;
5166           else
5167             {
5168               oappend (names_seg[ds_reg - es_reg]);
5169               oappend (":");
5170             }
5171           print_operand_value (scratchbuf, sizeof(scratchbuf), 1,
5172                                disp & 0xffff);
5173           oappend (scratchbuf);
5174         }
5175     }
5176 }
5177
5178 static void
5179 OP_G (int bytemode, int sizeflag)
5180 {
5181   int add = 0;
5182   USED_REX (REX_R);
5183   if (rex & REX_R)
5184     add += 8;
5185   switch (bytemode)
5186     {
5187     case b_mode:
5188       USED_REX (0);
5189       if (rex)
5190         oappend (names8rex[modrm.reg + add]);
5191       else
5192         oappend (names8[modrm.reg + add]);
5193       break;
5194     case w_mode:
5195       oappend (names16[modrm.reg + add]);
5196       break;
5197     case d_mode:
5198       oappend (names32[modrm.reg + add]);
5199       break;
5200     case q_mode:
5201       oappend (names64[modrm.reg + add]);
5202       break;
5203     case v_mode:
5204     case dq_mode:
5205     case dqb_mode:
5206     case dqd_mode:
5207     case dqw_mode:
5208       USED_REX (REX_W);
5209       if (rex & REX_W)
5210         oappend (names64[modrm.reg + add]);
5211       else if ((sizeflag & DFLAG) || bytemode != v_mode)
5212         oappend (names32[modrm.reg + add]);
5213       else
5214         oappend (names16[modrm.reg + add]);
5215       used_prefixes |= (prefixes & PREFIX_DATA);
5216       break;
5217     case m_mode:
5218       if (address_mode == mode_64bit)
5219         oappend (names64[modrm.reg + add]);
5220       else
5221         oappend (names32[modrm.reg + add]);
5222       break;
5223     default:
5224       oappend (INTERNAL_DISASSEMBLER_ERROR);
5225       break;
5226     }
5227 }
5228
5229 static bfd_vma
5230 get64 (void)
5231 {
5232   bfd_vma x;
5233 #ifdef BFD64
5234   unsigned int a;
5235   unsigned int b;
5236
5237   fetch_data(the_info, codep + 8);
5238   a = *codep++ & 0xff;
5239   a |= (*codep++ & 0xff) << 8;
5240   a |= (*codep++ & 0xff) << 16;
5241   a |= (*codep++ & 0xff) << 24;
5242   b = *codep++ & 0xff;
5243   b |= (*codep++ & 0xff) << 8;
5244   b |= (*codep++ & 0xff) << 16;
5245   b |= (*codep++ & 0xff) << 24;
5246   x = a + ((bfd_vma) b << 32);
5247 #else
5248   abort ();
5249   x = 0;
5250 #endif
5251   return x;
5252 }
5253
5254 static bfd_signed_vma
5255 get32 (void)
5256 {
5257   bfd_signed_vma x = 0;
5258
5259   fetch_data(the_info, codep + 4);
5260   x = *codep++ & (bfd_signed_vma) 0xff;
5261   x |= (*codep++ & (bfd_signed_vma) 0xff) << 8;
5262   x |= (*codep++ & (bfd_signed_vma) 0xff) << 16;
5263   x |= (*codep++ & (bfd_signed_vma) 0xff) << 24;
5264   return x;
5265 }
5266
5267 static bfd_signed_vma
5268 get32s (void)
5269 {
5270   bfd_signed_vma x = 0;
5271
5272   fetch_data(the_info, codep + 4);
5273   x = *codep++ & (bfd_signed_vma) 0xff;
5274   x |= (*codep++ & (bfd_signed_vma) 0xff) << 8;
5275   x |= (*codep++ & (bfd_signed_vma) 0xff) << 16;
5276   x |= (*codep++ & (bfd_signed_vma) 0xff) << 24;
5277
5278   x = (x ^ ((bfd_signed_vma) 1 << 31)) - ((bfd_signed_vma) 1 << 31);
5279
5280   return x;
5281 }
5282
5283 static int
5284 get16 (void)
5285 {
5286   int x = 0;
5287
5288   fetch_data(the_info, codep + 2);
5289   x = *codep++ & 0xff;
5290   x |= (*codep++ & 0xff) << 8;
5291   return x;
5292 }
5293
5294 static void
5295 set_op (bfd_vma op, int riprel)
5296 {
5297   op_index[op_ad] = op_ad;
5298   if (address_mode == mode_64bit)
5299     {
5300       op_address[op_ad] = op;
5301       op_riprel[op_ad] = riprel;
5302     }
5303   else
5304     {
5305       /* Mask to get a 32-bit address.  */
5306       op_address[op_ad] = op & 0xffffffff;
5307       op_riprel[op_ad] = riprel & 0xffffffff;
5308     }
5309 }
5310
5311 static void
5312 OP_REG (int code, int sizeflag)
5313 {
5314   const char *s;
5315   int add = 0;
5316   USED_REX (REX_B);
5317   if (rex & REX_B)
5318     add = 8;
5319
5320   switch (code)
5321     {
5322     case ax_reg: case cx_reg: case dx_reg: case bx_reg:
5323     case sp_reg: case bp_reg: case si_reg: case di_reg:
5324       s = names16[code - ax_reg + add];
5325       break;
5326     case es_reg: case ss_reg: case cs_reg:
5327     case ds_reg: case fs_reg: case gs_reg:
5328       s = names_seg[code - es_reg + add];
5329       break;
5330     case al_reg: case ah_reg: case cl_reg: case ch_reg:
5331     case dl_reg: case dh_reg: case bl_reg: case bh_reg:
5332       USED_REX (0);
5333       if (rex)
5334         s = names8rex[code - al_reg + add];
5335       else
5336         s = names8[code - al_reg];
5337       break;
5338     case rAX_reg: case rCX_reg: case rDX_reg: case rBX_reg:
5339     case rSP_reg: case rBP_reg: case rSI_reg: case rDI_reg:
5340       if (address_mode == mode_64bit && (sizeflag & DFLAG))
5341         {
5342           s = names64[code - rAX_reg + add];
5343           break;
5344         }
5345       code += eAX_reg - rAX_reg;
5346       /* Fall through.  */
5347     case eAX_reg: case eCX_reg: case eDX_reg: case eBX_reg:
5348     case eSP_reg: case eBP_reg: case eSI_reg: case eDI_reg:
5349       USED_REX (REX_W);
5350       if (rex & REX_W)
5351         s = names64[code - eAX_reg + add];
5352       else if (sizeflag & DFLAG)
5353         s = names32[code - eAX_reg + add];
5354       else
5355         s = names16[code - eAX_reg + add];
5356       used_prefixes |= (prefixes & PREFIX_DATA);
5357       break;
5358     default:
5359       s = INTERNAL_DISASSEMBLER_ERROR;
5360       break;
5361     }
5362   oappend (s);
5363 }
5364
5365 static void
5366 OP_IMREG (int code, int sizeflag)
5367 {
5368   const char *s;
5369
5370   switch (code)
5371     {
5372     case indir_dx_reg:
5373       if (intel_syntax)
5374         s = "dx";
5375       else
5376         s = "(%dx)";
5377       break;
5378     case ax_reg: case cx_reg: case dx_reg: case bx_reg:
5379     case sp_reg: case bp_reg: case si_reg: case di_reg:
5380       s = names16[code - ax_reg];
5381       break;
5382     case es_reg: case ss_reg: case cs_reg:
5383     case ds_reg: case fs_reg: case gs_reg:
5384       s = names_seg[code - es_reg];
5385       break;
5386     case al_reg: case ah_reg: case cl_reg: case ch_reg:
5387     case dl_reg: case dh_reg: case bl_reg: case bh_reg:
5388       USED_REX (0);
5389       if (rex)
5390         s = names8rex[code - al_reg];
5391       else
5392         s = names8[code - al_reg];
5393       break;
5394     case eAX_reg: case eCX_reg: case eDX_reg: case eBX_reg:
5395     case eSP_reg: case eBP_reg: case eSI_reg: case eDI_reg:
5396       USED_REX (REX_W);
5397       if (rex & REX_W)
5398         s = names64[code - eAX_reg];
5399       else if (sizeflag & DFLAG)
5400         s = names32[code - eAX_reg];
5401       else
5402         s = names16[code - eAX_reg];
5403       used_prefixes |= (prefixes & PREFIX_DATA);
5404       break;
5405     case z_mode_ax_reg:
5406       if ((rex & REX_W) || (sizeflag & DFLAG))
5407         s = *names32;
5408       else
5409         s = *names16;
5410       if (!(rex & REX_W))
5411         used_prefixes |= (prefixes & PREFIX_DATA);
5412       break;
5413     default:
5414       s = INTERNAL_DISASSEMBLER_ERROR;
5415       break;
5416     }
5417   oappend (s);
5418 }
5419
5420 static void
5421 OP_I (int bytemode, int sizeflag)
5422 {
5423   bfd_signed_vma op;
5424   bfd_signed_vma mask = -1;
5425
5426   switch (bytemode)
5427     {
5428     case b_mode:
5429       fetch_data(the_info, codep + 1);
5430       op = *codep++;
5431       mask = 0xff;
5432       break;
5433     case q_mode:
5434       if (address_mode == mode_64bit)
5435         {
5436           op = get32s ();
5437           break;
5438         }
5439       /* Fall through.  */
5440     case v_mode:
5441       USED_REX (REX_W);
5442       if (rex & REX_W)
5443         op = get32s ();
5444       else if (sizeflag & DFLAG)
5445         {
5446           op = get32 ();
5447           mask = 0xffffffff;
5448         }
5449       else
5450         {
5451           op = get16 ();
5452           mask = 0xfffff;
5453         }
5454       used_prefixes |= (prefixes & PREFIX_DATA);
5455       break;
5456     case w_mode:
5457       mask = 0xfffff;
5458       op = get16 ();
5459       break;
5460     case const_1_mode:
5461       if (intel_syntax)
5462         oappend ("1");
5463       return;
5464     default:
5465       oappend (INTERNAL_DISASSEMBLER_ERROR);
5466       return;
5467     }
5468
5469   op &= mask;
5470   scratchbuf[0] = '$';
5471   print_operand_value (scratchbuf + 1, sizeof(scratchbuf) - 1, 1, op);
5472   oappend (scratchbuf + intel_syntax);
5473   scratchbuf[0] = '\0';
5474 }
5475
5476 static void
5477 OP_I64 (int bytemode, int sizeflag)
5478 {
5479   bfd_signed_vma op;
5480   bfd_signed_vma mask = -1;
5481
5482   if (address_mode != mode_64bit)
5483     {
5484       OP_I (bytemode, sizeflag);
5485       return;
5486     }
5487
5488   switch (bytemode)
5489     {
5490     case b_mode:
5491       fetch_data(the_info, codep + 1);
5492       op = *codep++;
5493       mask = 0xff;
5494       break;
5495     case v_mode:
5496       USED_REX (REX_W);
5497       if (rex & REX_W)
5498         op = get64 ();
5499       else if (sizeflag & DFLAG)
5500         {
5501           op = get32 ();
5502           mask = 0xffffffff;
5503         }
5504       else
5505         {
5506           op = get16 ();
5507           mask = 0xfffff;
5508         }
5509       used_prefixes |= (prefixes & PREFIX_DATA);
5510       break;
5511     case w_mode:
5512       mask = 0xfffff;
5513       op = get16 ();
5514       break;
5515     default:
5516       oappend (INTERNAL_DISASSEMBLER_ERROR);
5517       return;
5518     }
5519
5520   op &= mask;
5521   scratchbuf[0] = '$';
5522   print_operand_value (scratchbuf + 1, sizeof(scratchbuf) - 1, 1, op);
5523   oappend (scratchbuf + intel_syntax);
5524   scratchbuf[0] = '\0';
5525 }
5526
5527 static void
5528 OP_sI (int bytemode, int sizeflag)
5529 {
5530   bfd_signed_vma op;
5531
5532   switch (bytemode)
5533     {
5534     case b_mode:
5535       fetch_data(the_info, codep + 1);
5536       op = *codep++;
5537       if ((op & 0x80) != 0)
5538         op -= 0x100;
5539       break;
5540     case v_mode:
5541       USED_REX (REX_W);
5542       if (rex & REX_W)
5543         op = get32s ();
5544       else if (sizeflag & DFLAG)
5545         {
5546           op = get32s ();
5547         }
5548       else
5549         {
5550           op = get16 ();
5551           if ((op & 0x8000) != 0)
5552             op -= 0x10000;
5553         }
5554       used_prefixes |= (prefixes & PREFIX_DATA);
5555       break;
5556     case w_mode:
5557       op = get16 ();
5558       if ((op & 0x8000) != 0)
5559         op -= 0x10000;
5560       break;
5561     default:
5562       oappend (INTERNAL_DISASSEMBLER_ERROR);
5563       return;
5564     }
5565
5566   scratchbuf[0] = '$';
5567   print_operand_value (scratchbuf + 1, sizeof(scratchbuf) - 1, 1, op);
5568   oappend (scratchbuf + intel_syntax);
5569 }
5570
5571 static void
5572 OP_J (int bytemode, int sizeflag)
5573 {
5574   bfd_vma disp;
5575   bfd_vma mask = -1;
5576   bfd_vma segment = 0;
5577
5578   switch (bytemode)
5579     {
5580     case b_mode:
5581       fetch_data(the_info, codep + 1);
5582       disp = *codep++;
5583       if ((disp & 0x80) != 0)
5584         disp -= 0x100;
5585       break;
5586     case v_mode:
5587       if ((sizeflag & DFLAG) || (rex & REX_W))
5588         disp = get32s ();
5589       else
5590         {
5591           disp = get16 ();
5592           if ((disp & 0x8000) != 0)
5593             disp -= 0x10000;
5594           /* In 16bit mode, address is wrapped around at 64k within
5595              the same segment.  Otherwise, a data16 prefix on a jump
5596              instruction means that the pc is masked to 16 bits after
5597              the displacement is added!  */
5598           mask = 0xffff;
5599           if ((prefixes & PREFIX_DATA) == 0)
5600             segment = ((start_pc + codep - start_codep)
5601                        & ~((bfd_vma) 0xffff));
5602         }
5603       used_prefixes |= (prefixes & PREFIX_DATA);
5604       break;
5605     default:
5606       oappend (INTERNAL_DISASSEMBLER_ERROR);
5607       return;
5608     }
5609   disp = ((start_pc + codep - start_codep + disp) & mask) | segment;
5610   set_op (disp, 0);
5611   print_operand_value (scratchbuf, sizeof(scratchbuf), 1, disp);
5612   oappend (scratchbuf);
5613 }
5614
5615 static void
5616 OP_SEG (int bytemode, int sizeflag)
5617 {
5618   if (bytemode == w_mode)
5619     oappend (names_seg[modrm.reg]);
5620   else
5621     OP_E (modrm.mod == 3 ? bytemode : w_mode, sizeflag);
5622 }
5623
5624 static void
5625 OP_DIR (int dummy ATTRIBUTE_UNUSED, int sizeflag)
5626 {
5627   int seg, offset;
5628
5629   if (sizeflag & DFLAG)
5630     {
5631       offset = get32 ();
5632       seg = get16 ();
5633     }
5634   else
5635     {
5636       offset = get16 ();
5637       seg = get16 ();
5638     }
5639   used_prefixes |= (prefixes & PREFIX_DATA);
5640   if (intel_syntax)
5641     snprintf (scratchbuf, sizeof(scratchbuf), "0x%x:0x%x", seg, offset);
5642   else
5643     snprintf (scratchbuf, sizeof(scratchbuf), "$0x%x,$0x%x", seg, offset);
5644   oappend (scratchbuf);
5645 }
5646
5647 static void
5648 OP_OFF (int bytemode, int sizeflag)
5649 {
5650   bfd_vma off;
5651
5652   if (intel_syntax && (sizeflag & SUFFIX_ALWAYS))
5653     intel_operand_size (bytemode, sizeflag);
5654   append_seg ();
5655
5656   if ((sizeflag & AFLAG) || address_mode == mode_64bit)
5657     off = get32 ();
5658   else
5659     off = get16 ();
5660
5661   if (intel_syntax)
5662     {
5663       if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5664                         | PREFIX_ES | PREFIX_FS | PREFIX_GS)))
5665         {
5666           oappend (names_seg[ds_reg - es_reg]);
5667           oappend (":");
5668         }
5669     }
5670   print_operand_value (scratchbuf, sizeof(scratchbuf), 1, off);
5671   oappend (scratchbuf);
5672 }
5673
5674 static void
5675 OP_OFF64 (int bytemode, int sizeflag)
5676 {
5677   bfd_vma off;
5678
5679   if (address_mode != mode_64bit
5680       || (prefixes & PREFIX_ADDR))
5681     {
5682       OP_OFF (bytemode, sizeflag);
5683       return;
5684     }
5685
5686   if (intel_syntax && (sizeflag & SUFFIX_ALWAYS))
5687     intel_operand_size (bytemode, sizeflag);
5688   append_seg ();
5689
5690   off = get64 ();
5691
5692   if (intel_syntax)
5693     {
5694       if (!(prefixes & (PREFIX_CS | PREFIX_SS | PREFIX_DS
5695                         | PREFIX_ES | PREFIX_FS | PREFIX_GS)))
5696         {
5697           oappend (names_seg[ds_reg - es_reg]);
5698           oappend (":");
5699         }
5700     }
5701   print_operand_value (scratchbuf, sizeof(scratchbuf), 1, off);
5702   oappend (scratchbuf);
5703 }
5704
5705 static void
5706 ptr_reg (int code, int sizeflag)
5707 {
5708   const char *s;
5709
5710   *obufp++ = open_char;
5711   used_prefixes |= (prefixes & PREFIX_ADDR);
5712   if (address_mode == mode_64bit)
5713     {
5714       if (!(sizeflag & AFLAG))
5715         s = names32[code - eAX_reg];
5716       else
5717         s = names64[code - eAX_reg];
5718     }
5719   else if (sizeflag & AFLAG)
5720     s = names32[code - eAX_reg];
5721   else
5722     s = names16[code - eAX_reg];
5723   oappend (s);
5724   *obufp++ = close_char;
5725   *obufp = 0;
5726 }
5727
5728 static void
5729 OP_ESreg (int code, int sizeflag)
5730 {
5731   if (intel_syntax)
5732     {
5733       switch (codep[-1])
5734         {
5735         case 0x6d:      /* insw/insl */
5736           intel_operand_size (z_mode, sizeflag);
5737           break;
5738         case 0xa5:      /* movsw/movsl/movsq */
5739         case 0xa7:      /* cmpsw/cmpsl/cmpsq */
5740         case 0xab:      /* stosw/stosl */
5741         case 0xaf:      /* scasw/scasl */
5742           intel_operand_size (v_mode, sizeflag);
5743           break;
5744         default:
5745           intel_operand_size (b_mode, sizeflag);
5746         }
5747     }
5748   oappend ("%es:" + intel_syntax);
5749   ptr_reg (code, sizeflag);
5750 }
5751
5752 static void
5753 OP_DSreg (int code, int sizeflag)
5754 {
5755   if (intel_syntax)
5756     {
5757       switch (codep[-1])
5758         {
5759         case 0x6f:      /* outsw/outsl */
5760           intel_operand_size (z_mode, sizeflag);
5761           break;
5762         case 0xa5:      /* movsw/movsl/movsq */
5763         case 0xa7:      /* cmpsw/cmpsl/cmpsq */
5764         case 0xad:      /* lodsw/lodsl/lodsq */
5765           intel_operand_size (v_mode, sizeflag);
5766           break;
5767         default:
5768           intel_operand_size (b_mode, sizeflag);
5769         }
5770     }
5771   if ((prefixes
5772        & (PREFIX_CS
5773           | PREFIX_DS
5774           | PREFIX_SS
5775           | PREFIX_ES
5776           | PREFIX_FS
5777           | PREFIX_GS)) == 0)
5778     prefixes |= PREFIX_DS;
5779   append_seg ();
5780   ptr_reg (code, sizeflag);
5781 }
5782
5783 static void
5784 OP_C (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5785 {
5786   int add = 0;
5787   if (rex & REX_R)
5788     {
5789       USED_REX (REX_R);
5790       add = 8;
5791     }
5792   else if (address_mode != mode_64bit && (prefixes & PREFIX_LOCK))
5793     {
5794       used_prefixes |= PREFIX_LOCK;
5795       add = 8;
5796     }
5797   snprintf (scratchbuf, sizeof(scratchbuf), "%%cr%d", modrm.reg + add);
5798   oappend (scratchbuf + intel_syntax);
5799 }
5800
5801 static void
5802 OP_D (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5803 {
5804   int add = 0;
5805   USED_REX (REX_R);
5806   if (rex & REX_R)
5807     add = 8;
5808   if (intel_syntax)
5809     snprintf (scratchbuf, sizeof(scratchbuf), "db%d", modrm.reg + add);
5810   else
5811     snprintf (scratchbuf, sizeof(scratchbuf), "%%db%d", modrm.reg + add);
5812   oappend (scratchbuf);
5813 }
5814
5815 static void
5816 OP_T (int dummy ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5817 {
5818   snprintf (scratchbuf, sizeof(scratchbuf), "%%tr%d", modrm.reg);
5819   oappend (scratchbuf + intel_syntax);
5820 }
5821
5822 static void
5823 OP_R (int bytemode, int sizeflag)
5824 {
5825   if (modrm.mod == 3)
5826     OP_E (bytemode, sizeflag);
5827   else
5828     BadOp ();
5829 }
5830
5831 static void
5832 OP_MMX (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5833 {
5834   used_prefixes |= (prefixes & PREFIX_DATA);
5835   if (prefixes & PREFIX_DATA)
5836     {
5837       int add = 0;
5838       USED_REX (REX_R);
5839       if (rex & REX_R)
5840         add = 8;
5841       snprintf (scratchbuf, sizeof(scratchbuf), "%%xmm%d", modrm.reg + add);
5842     }
5843   else
5844     snprintf (scratchbuf, sizeof(scratchbuf), "%%mm%d", modrm.reg);
5845   oappend (scratchbuf + intel_syntax);
5846 }
5847
5848 static void
5849 OP_XMM (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5850 {
5851   int add = 0;
5852   USED_REX (REX_R);
5853   if (rex & REX_R)
5854     add = 8;
5855   snprintf (scratchbuf, sizeof(scratchbuf), "%%xmm%d", modrm.reg + add);
5856   oappend (scratchbuf + intel_syntax);
5857 }
5858
5859 static void
5860 OP_EM (int bytemode, int sizeflag)
5861 {
5862   if (modrm.mod != 3)
5863     {
5864       if (intel_syntax && bytemode == v_mode)
5865         {
5866           bytemode = (prefixes & PREFIX_DATA) ? x_mode : q_mode;
5867           used_prefixes |= (prefixes & PREFIX_DATA);
5868         }
5869       OP_E (bytemode, sizeflag);
5870       return;
5871     }
5872
5873   /* Skip mod/rm byte.  */
5874   MODRM_CHECK;
5875   codep++;
5876   used_prefixes |= (prefixes & PREFIX_DATA);
5877   if (prefixes & PREFIX_DATA)
5878     {
5879       int add = 0;
5880
5881       USED_REX (REX_B);
5882       if (rex & REX_B)
5883         add = 8;
5884       snprintf (scratchbuf, sizeof(scratchbuf), "%%xmm%d", modrm.rm + add);
5885     }
5886   else
5887     snprintf (scratchbuf, sizeof(scratchbuf), "%%mm%d", modrm.rm);
5888   oappend (scratchbuf + intel_syntax);
5889 }
5890
5891 /* cvt* are the only instructions in sse2 which have
5892    both SSE and MMX operands and also have 0x66 prefix
5893    in their opcode. 0x66 was originally used to differentiate
5894    between SSE and MMX instruction(operands). So we have to handle the
5895    cvt* separately using OP_EMC and OP_MXC */
5896 static void
5897 OP_EMC (int bytemode, int sizeflag)
5898 {
5899   if (modrm.mod != 3)
5900     {
5901       if (intel_syntax && bytemode == v_mode)
5902         {
5903           bytemode = (prefixes & PREFIX_DATA) ? x_mode : q_mode;
5904           used_prefixes |= (prefixes & PREFIX_DATA);
5905         }
5906       OP_E (bytemode, sizeflag);
5907       return;
5908     }
5909
5910   /* Skip mod/rm byte.  */
5911   MODRM_CHECK;
5912   codep++;
5913   used_prefixes |= (prefixes & PREFIX_DATA);
5914   snprintf (scratchbuf, sizeof(scratchbuf), "%%mm%d", modrm.rm);
5915   oappend (scratchbuf + intel_syntax);
5916 }
5917
5918 static void
5919 OP_MXC (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
5920 {
5921   used_prefixes |= (prefixes & PREFIX_DATA);
5922   snprintf (scratchbuf, sizeof(scratchbuf), "%%mm%d", modrm.reg);
5923   oappend (scratchbuf + intel_syntax);
5924 }
5925
5926 static void
5927 OP_EX (int bytemode, int sizeflag)
5928 {
5929   int add = 0;
5930   if (modrm.mod != 3)
5931     {
5932       OP_E (bytemode, sizeflag);
5933       return;
5934     }
5935   USED_REX (REX_B);
5936   if (rex & REX_B)
5937     add = 8;
5938
5939   /* Skip mod/rm byte.  */
5940   MODRM_CHECK;
5941   codep++;
5942   snprintf (scratchbuf, sizeof(scratchbuf), "%%xmm%d", modrm.rm + add);
5943   oappend (scratchbuf + intel_syntax);
5944 }
5945
5946 static void
5947 OP_MS (int bytemode, int sizeflag)
5948 {
5949   if (modrm.mod == 3)
5950     OP_EM (bytemode, sizeflag);
5951   else
5952     BadOp ();
5953 }
5954
5955 static void
5956 OP_XS (int bytemode, int sizeflag)
5957 {
5958   if (modrm.mod == 3)
5959     OP_EX (bytemode, sizeflag);
5960   else
5961     BadOp ();
5962 }
5963
5964 static void
5965 OP_M (int bytemode, int sizeflag)
5966 {
5967   if (modrm.mod == 3)
5968     /* bad bound,lea,lds,les,lfs,lgs,lss,cmpxchg8b,vmptrst modrm */
5969     BadOp ();
5970   else
5971     OP_E (bytemode, sizeflag);
5972 }
5973
5974 static void
5975 OP_0f07 (int bytemode, int sizeflag)
5976 {
5977   if (modrm.mod != 3 || modrm.rm != 0)
5978     BadOp ();
5979   else
5980     OP_E (bytemode, sizeflag);
5981 }
5982
5983 static void
5984 OP_0fae (int bytemode, int sizeflag)
5985 {
5986   if (modrm.mod == 3)
5987     {
5988       if (modrm.reg == 7)
5989         strcpy (obuf + strlen (obuf) - sizeof ("clflush") + 1, "sfence");
5990
5991       if (modrm.reg < 5 || modrm.rm != 0)
5992         {
5993           BadOp ();     /* bad sfence, mfence, or lfence */
5994           return;
5995         }
5996     }
5997   else if (modrm.reg != 7)
5998     {
5999       BadOp ();         /* bad clflush */
6000       return;
6001     }
6002
6003   OP_E (bytemode, sizeflag);
6004 }
6005
6006 /* NOP is an alias of "xchg %ax,%ax" in 16bit mode, "xchg %eax,%eax" in
6007    32bit mode and "xchg %rax,%rax" in 64bit mode.  */
6008
6009 static void
6010 NOP_Fixup1 (int bytemode, int sizeflag)
6011 {
6012   if ((prefixes & PREFIX_DATA) != 0
6013       || (rex != 0
6014           && rex != 0x48
6015           && address_mode == mode_64bit))
6016     OP_REG (bytemode, sizeflag);
6017   else
6018     strcpy (obuf, "nop");
6019 }
6020
6021 static void
6022 NOP_Fixup2 (int bytemode, int sizeflag)
6023 {
6024   if ((prefixes & PREFIX_DATA) != 0
6025       || (rex != 0
6026           && rex != 0x48
6027           && address_mode == mode_64bit))
6028     OP_IMREG (bytemode, sizeflag);
6029 }
6030
6031 static const char *Suffix3DNow[] = {
6032 /* 00 */        NULL,           NULL,           NULL,           NULL,
6033 /* 04 */        NULL,           NULL,           NULL,           NULL,
6034 /* 08 */        NULL,           NULL,           NULL,           NULL,
6035 /* 0C */        "pi2fw",        "pi2fd",        NULL,           NULL,
6036 /* 10 */        NULL,           NULL,           NULL,           NULL,
6037 /* 14 */        NULL,           NULL,           NULL,           NULL,
6038 /* 18 */        NULL,           NULL,           NULL,           NULL,
6039 /* 1C */        "pf2iw",        "pf2id",        NULL,           NULL,
6040 /* 20 */        NULL,           NULL,           NULL,           NULL,
6041 /* 24 */        NULL,           NULL,           NULL,           NULL,
6042 /* 28 */        NULL,           NULL,           NULL,           NULL,
6043 /* 2C */        NULL,           NULL,           NULL,           NULL,
6044 /* 30 */        NULL,           NULL,           NULL,           NULL,
6045 /* 34 */        NULL,           NULL,           NULL,           NULL,
6046 /* 38 */        NULL,           NULL,           NULL,           NULL,
6047 /* 3C */        NULL,           NULL,           NULL,           NULL,
6048 /* 40 */        NULL,           NULL,           NULL,           NULL,
6049 /* 44 */        NULL,           NULL,           NULL,           NULL,
6050 /* 48 */        NULL,           NULL,           NULL,           NULL,
6051 /* 4C */        NULL,           NULL,           NULL,           NULL,
6052 /* 50 */        NULL,           NULL,           NULL,           NULL,
6053 /* 54 */        NULL,           NULL,           NULL,           NULL,
6054 /* 58 */        NULL,           NULL,           NULL,           NULL,
6055 /* 5C */        NULL,           NULL,           NULL,           NULL,
6056 /* 60 */        NULL,           NULL,           NULL,           NULL,
6057 /* 64 */        NULL,           NULL,           NULL,           NULL,
6058 /* 68 */        NULL,           NULL,           NULL,           NULL,
6059 /* 6C */        NULL,           NULL,           NULL,           NULL,
6060 /* 70 */        NULL,           NULL,           NULL,           NULL,
6061 /* 74 */        NULL,           NULL,           NULL,           NULL,
6062 /* 78 */        NULL,           NULL,           NULL,           NULL,
6063 /* 7C */        NULL,           NULL,           NULL,           NULL,
6064 /* 80 */        NULL,           NULL,           NULL,           NULL,
6065 /* 84 */        NULL,           NULL,           NULL,           NULL,
6066 /* 88 */        NULL,           NULL,           "pfnacc",       NULL,
6067 /* 8C */        NULL,           NULL,           "pfpnacc",      NULL,
6068 /* 90 */        "pfcmpge",      NULL,           NULL,           NULL,
6069 /* 94 */        "pfmin",        NULL,           "pfrcp",        "pfrsqrt",
6070 /* 98 */        NULL,           NULL,           "pfsub",        NULL,
6071 /* 9C */        NULL,           NULL,           "pfadd",        NULL,
6072 /* A0 */        "pfcmpgt",      NULL,           NULL,           NULL,
6073 /* A4 */        "pfmax",        NULL,           "pfrcpit1",     "pfrsqit1",
6074 /* A8 */        NULL,           NULL,           "pfsubr",       NULL,
6075 /* AC */        NULL,           NULL,           "pfacc",        NULL,
6076 /* B0 */        "pfcmpeq",      NULL,           NULL,           NULL,
6077 /* B4 */        "pfmul",        NULL,           "pfrcpit2",     "pmulhrw",
6078 /* B8 */        NULL,           NULL,           NULL,           "pswapd",
6079 /* BC */        NULL,           NULL,           NULL,           "pavgusb",
6080 /* C0 */        NULL,           NULL,           NULL,           NULL,
6081 /* C4 */        NULL,           NULL,           NULL,           NULL,
6082 /* C8 */        NULL,           NULL,           NULL,           NULL,
6083 /* CC */        NULL,           NULL,           NULL,           NULL,
6084 /* D0 */        NULL,           NULL,           NULL,           NULL,
6085 /* D4 */        NULL,           NULL,           NULL,           NULL,
6086 /* D8 */        NULL,           NULL,           NULL,           NULL,
6087 /* DC */        NULL,           NULL,           NULL,           NULL,
6088 /* E0 */        NULL,           NULL,           NULL,           NULL,
6089 /* E4 */        NULL,           NULL,           NULL,           NULL,
6090 /* E8 */        NULL,           NULL,           NULL,           NULL,
6091 /* EC */        NULL,           NULL,           NULL,           NULL,
6092 /* F0 */        NULL,           NULL,           NULL,           NULL,
6093 /* F4 */        NULL,           NULL,           NULL,           NULL,
6094 /* F8 */        NULL,           NULL,           NULL,           NULL,
6095 /* FC */        NULL,           NULL,           NULL,           NULL,
6096 };
6097
6098 static void
6099 OP_3DNowSuffix (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
6100 {
6101   const char *mnemonic;
6102
6103   fetch_data(the_info, codep + 1);
6104   /* AMD 3DNow! instructions are specified by an opcode suffix in the
6105      place where an 8-bit immediate would normally go.  ie. the last
6106      byte of the instruction.  */
6107   obufp = obuf + strlen (obuf);
6108   mnemonic = Suffix3DNow[*codep++ & 0xff];
6109   if (mnemonic)
6110     oappend (mnemonic);
6111   else
6112     {
6113       /* Since a variable sized modrm/sib chunk is between the start
6114          of the opcode (0x0f0f) and the opcode suffix, we need to do
6115          all the modrm processing first, and don't know until now that
6116          we have a bad opcode.  This necessitates some cleaning up.  */
6117       op_out[0][0] = '\0';
6118       op_out[1][0] = '\0';
6119       BadOp ();
6120     }
6121 }
6122
6123 static const char *simd_cmp_op[] = {
6124   "eq",
6125   "lt",
6126   "le",
6127   "unord",
6128   "neq",
6129   "nlt",
6130   "nle",
6131   "ord"
6132 };
6133
6134 static void
6135 OP_SIMD_Suffix (int bytemode ATTRIBUTE_UNUSED, int sizeflag ATTRIBUTE_UNUSED)
6136 {
6137   unsigned int cmp_type;
6138
6139   fetch_data(the_info, codep + 1);
6140   obufp = obuf + strlen (obuf);
6141   cmp_type = *codep++ & 0xff;
6142   if (cmp_type < 8)
6143     {
6144       char suffix1 = 'p', suffix2 = 's';
6145       used_prefixes |= (prefixes & PREFIX_REPZ);
6146       if (prefixes & PREFIX_REPZ)
6147         suffix1 = 's';
6148       else
6149         {
6150           used_prefixes |= (prefixes & PREFIX_DATA);
6151           if (prefixes & PREFIX_DATA)
6152             suffix2 = 'd';
6153           else
6154             {
6155               used_prefixes |= (prefixes & PREFIX_REPNZ);
6156               if (prefixes & PREFIX_REPNZ)
6157                 suffix1 = 's', suffix2 = 'd';
6158             }
6159         }
6160       snprintf (scratchbuf, sizeof(scratchbuf), "cmp%s%c%c",
6161                 simd_cmp_op[cmp_type], suffix1, suffix2);
6162       used_prefixes |= (prefixes & PREFIX_REPZ);
6163       oappend (scratchbuf);
6164     }
6165   else
6166     {
6167       /* We have a bad extension byte.  Clean up.  */
6168       op_out[0][0] = '\0';
6169       op_out[1][0] = '\0';
6170       BadOp ();
6171     }
6172 }
6173
6174 static void
6175 SIMD_Fixup (int extrachar, int sizeflag ATTRIBUTE_UNUSED)
6176 {
6177   /* Change movlps/movhps to movhlps/movlhps for 2 register operand
6178      forms of these instructions.  */
6179   if (modrm.mod == 3)
6180     {
6181       char *p = obuf + strlen (obuf);
6182       *(p + 1) = '\0';
6183       *p       = *(p - 1);
6184       *(p - 1) = *(p - 2);
6185       *(p - 2) = *(p - 3);
6186       *(p - 3) = extrachar;
6187     }
6188 }
6189
6190 static void
6191 PNI_Fixup (int extrachar ATTRIBUTE_UNUSED, int sizeflag)
6192 {
6193   if (modrm.mod == 3 && modrm.reg == 1 && modrm.rm <= 1)
6194     {
6195       /* Override "sidt".  */
6196       size_t olen = strlen (obuf);
6197       char *p = obuf + olen - 4;
6198       const char * const *names = (address_mode == mode_64bit
6199                             ? names64 : names32);
6200
6201       /* We might have a suffix when disassembling with -Msuffix.  */
6202       if (*p == 'i')
6203         --p;
6204
6205       /* Remove "addr16/addr32" if we aren't in Intel mode.  */
6206       if (!intel_syntax
6207           && (prefixes & PREFIX_ADDR)
6208           && olen >= (4 + 7)
6209           && *(p - 1) == ' '
6210           && strncmp (p - 7, "addr", 4) == 0
6211           && (strncmp (p - 3, "16", 2) == 0
6212               || strncmp (p - 3, "32", 2) == 0))
6213         p -= 7;
6214
6215       if (modrm.rm)
6216         {
6217           /* mwait %eax,%ecx  */
6218           strcpy (p, "mwait");
6219           if (!intel_syntax)
6220             strcpy (op_out[0], names[0]);
6221         }
6222       else
6223         {
6224           /* monitor %eax,%ecx,%edx"  */
6225           strcpy (p, "monitor");
6226           if (!intel_syntax)
6227             {
6228               const char * const *op1_names;
6229               if (!(prefixes & PREFIX_ADDR))
6230                 op1_names = (address_mode == mode_16bit
6231                              ? names16 : names);
6232               else
6233                 {
6234                   op1_names = (address_mode != mode_32bit
6235                                ? names32 : names16);
6236                   used_prefixes |= PREFIX_ADDR;
6237                 }
6238               strcpy (op_out[0], op1_names[0]);
6239               strcpy (op_out[2], names[2]);
6240             }
6241         }
6242       if (!intel_syntax)
6243         {
6244           strcpy (op_out[1], names[1]);
6245           two_source_ops = 1;
6246         }
6247
6248       codep++;
6249     }
6250   else
6251     OP_M (0, sizeflag);
6252 }
6253
6254 static void
6255 SVME_Fixup (int bytemode, int sizeflag)
6256 {
6257   const char *alt;
6258   char *p;
6259
6260   switch (*codep)
6261     {
6262     case 0xd8:
6263       alt = "vmrun";
6264       break;
6265     case 0xd9:
6266       alt = "vmmcall";
6267       break;
6268     case 0xda:
6269       alt = "vmload";
6270       break;
6271     case 0xdb:
6272       alt = "vmsave";
6273       break;
6274     case 0xdc:
6275       alt = "stgi";
6276       break;
6277     case 0xdd:
6278       alt = "clgi";
6279       break;
6280     case 0xde:
6281       alt = "skinit";
6282       break;
6283     case 0xdf:
6284       alt = "invlpga";
6285       break;
6286     default:
6287       OP_M (bytemode, sizeflag);
6288       return;
6289     }
6290   /* Override "lidt".  */
6291   p = obuf + strlen (obuf) - 4;
6292   /* We might have a suffix.  */
6293   if (*p == 'i')
6294     --p;
6295   strcpy (p, alt);
6296   if (!(prefixes & PREFIX_ADDR))
6297     {
6298       ++codep;
6299       return;
6300     }
6301   used_prefixes |= PREFIX_ADDR;
6302   switch (*codep++)
6303     {
6304     case 0xdf:
6305       strcpy (op_out[1], names32[1]);
6306       two_source_ops = 1;
6307           /* Fall through.  */
6308     case 0xd8:
6309     case 0xda:
6310     case 0xdb:
6311       *obufp++ = open_char;
6312       if (address_mode == mode_64bit || (sizeflag & AFLAG))
6313         alt = names32[0];
6314       else
6315         alt = names16[0];
6316       strcpy (obufp, alt);
6317       obufp += strlen (alt);
6318       *obufp++ = close_char;
6319       *obufp = '\0';
6320       break;
6321     }
6322 }
6323
6324 static void
6325 INVLPG_Fixup (int bytemode, int sizeflag)
6326 {
6327   const char *alt;
6328
6329   switch (*codep)
6330     {
6331     case 0xf8:
6332       alt = "swapgs";
6333       break;
6334     case 0xf9:
6335       alt = "rdtscp";
6336       break;
6337     default:
6338       OP_M (bytemode, sizeflag);
6339       return;
6340     }
6341   /* Override "invlpg".  */
6342   strcpy (obuf + strlen (obuf) - 6, alt);
6343   codep++;
6344 }
6345
6346 static void
6347 BadOp (void)
6348 {
6349   /* Throw away prefixes and 1st. opcode byte.  */
6350   codep = insn_codep + 1;
6351   oappend ("(bad)");
6352 }
6353
6354 static void
6355 VMX_Fixup (int extrachar ATTRIBUTE_UNUSED, int sizeflag)
6356 {
6357   if (modrm.mod == 3
6358       && modrm.reg == 0
6359       && modrm.rm >=1
6360       && modrm.rm <= 4)
6361     {
6362       /* Override "sgdt".  */
6363       char *p = obuf + strlen (obuf) - 4;
6364
6365       /* We might have a suffix when disassembling with -Msuffix.  */
6366       if (*p == 'g')
6367         --p;
6368
6369       switch (modrm.rm)
6370         {
6371         case 1:
6372           strcpy (p, "vmcall");
6373           break;
6374         case 2:
6375           strcpy (p, "vmlaunch");
6376           break;
6377         case 3:
6378           strcpy (p, "vmresume");
6379           break;
6380         case 4:
6381           strcpy (p, "vmxoff");
6382           break;
6383         }
6384
6385       codep++;
6386     }
6387   else
6388     OP_E (0, sizeflag);
6389 }
6390
6391 static void
6392 OP_VMX (int bytemode, int sizeflag)
6393 {
6394   used_prefixes |= (prefixes & (PREFIX_DATA | PREFIX_REPZ));
6395   if (prefixes & PREFIX_DATA)
6396     strcpy (obuf, "vmclear");
6397   else if (prefixes & PREFIX_REPZ)
6398     strcpy (obuf, "vmxon");
6399   else
6400     strcpy (obuf, "vmptrld");
6401   OP_E (bytemode, sizeflag);
6402 }
6403
6404 static void
6405 REP_Fixup (int bytemode, int sizeflag)
6406 {
6407   /* The 0xf3 prefix should be displayed as "rep" for ins, outs, movs,
6408      lods and stos.  */
6409   size_t ilen = 0;
6410
6411   if (prefixes & PREFIX_REPZ)
6412     switch (*insn_codep)
6413       {
6414       case 0x6e:        /* outsb */
6415       case 0x6f:        /* outsw/outsl */
6416       case 0xa4:        /* movsb */
6417       case 0xa5:        /* movsw/movsl/movsq */
6418         if (!intel_syntax)
6419           ilen = 5;
6420         else
6421           ilen = 4;
6422         break;
6423       case 0xaa:        /* stosb */
6424       case 0xab:        /* stosw/stosl/stosq */
6425       case 0xac:        /* lodsb */
6426       case 0xad:        /* lodsw/lodsl/lodsq */
6427         if (!intel_syntax && (sizeflag & SUFFIX_ALWAYS))
6428           ilen = 5;
6429         else
6430           ilen = 4;
6431         break;
6432       case 0x6c:        /* insb */
6433       case 0x6d:        /* insl/insw */
6434         if (!intel_syntax)
6435           ilen = 4;
6436         else
6437           ilen = 3;
6438         break;
6439       default:
6440         abort ();
6441         break;
6442       }
6443
6444   if (ilen != 0)
6445     {
6446       size_t olen;
6447       char *p;
6448
6449       olen = strlen (obuf);
6450       p = obuf + olen - ilen - 1 - 4;
6451       /* Handle "repz [addr16|addr32]".  */
6452       if ((prefixes & PREFIX_ADDR))
6453         p -= 1 + 6;
6454
6455       memmove (p + 3, p + 4, olen - (p + 3 - obuf));
6456     }
6457
6458   switch (bytemode)
6459     {
6460     case al_reg:
6461     case eAX_reg:
6462     case indir_dx_reg:
6463       OP_IMREG (bytemode, sizeflag);
6464       break;
6465     case eDI_reg:
6466       OP_ESreg (bytemode, sizeflag);
6467       break;
6468     case eSI_reg:
6469       OP_DSreg (bytemode, sizeflag);
6470       break;
6471     default:
6472       abort ();
6473       break;
6474     }
6475 }
6476
6477 static void
6478 CMPXCHG8B_Fixup (int bytemode, int sizeflag)
6479 {
6480   USED_REX (REX_W);
6481   if (rex & REX_W)
6482     {
6483       /* Change cmpxchg8b to cmpxchg16b.  */
6484       char *p = obuf + strlen (obuf) - 2;
6485       strcpy (p, "16b");
6486       bytemode = o_mode;
6487     }
6488   OP_M (bytemode, sizeflag);
6489 }
6490
6491 static void
6492 XMM_Fixup (int reg, int sizeflag ATTRIBUTE_UNUSED)
6493 {
6494   snprintf (scratchbuf, sizeof(scratchbuf), "%%xmm%d", reg);
6495   oappend (scratchbuf + intel_syntax);
6496 }
6497
6498 static void
6499 CRC32_Fixup (int bytemode, int sizeflag)
6500 {
6501   /* Add proper suffix to "crc32".  */
6502   char *p = obuf + strlen (obuf);
6503
6504   switch (bytemode)
6505     {
6506     case b_mode:
6507       if (intel_syntax)
6508         break;
6509
6510       *p++ = 'b';
6511       break;
6512     case v_mode:
6513       if (intel_syntax)
6514         break;
6515
6516       USED_REX (REX_W);
6517       if (rex & REX_W)
6518         *p++ = 'q';
6519       else if (sizeflag & DFLAG)
6520         *p++ = 'l';
6521       else
6522         *p++ = 'w';
6523       used_prefixes |= (prefixes & PREFIX_DATA);
6524       break;
6525     default:
6526       oappend (INTERNAL_DISASSEMBLER_ERROR);
6527       break;
6528     }
6529   *p = '\0';
6530
6531   if (modrm.mod == 3)
6532     {
6533       int add;
6534
6535       /* Skip mod/rm byte.  */
6536       MODRM_CHECK;
6537       codep++;
6538
6539       USED_REX (REX_B);
6540       add = (rex & REX_B) ? 8 : 0;
6541       if (bytemode == b_mode)
6542         {
6543           USED_REX (0);
6544           if (rex)
6545             oappend (names8rex[modrm.rm + add]);
6546           else
6547             oappend (names8[modrm.rm + add]);
6548         }
6549       else
6550         {
6551           USED_REX (REX_W);
6552           if (rex & REX_W)
6553             oappend (names64[modrm.rm + add]);
6554           else if ((prefixes & PREFIX_DATA))
6555             oappend (names16[modrm.rm + add]);
6556           else
6557             oappend (names32[modrm.rm + add]);
6558         }
6559     }
6560   else
6561     OP_E (bytemode, sizeflag);
6562 }