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i386.c
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/* opcodes/i386-dis.c r1.126 */
/* Print i386 instructions for GDB, the GNU debugger.
Copyright 1988, 1989, 1991, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
/* 80386 instruction printer by Pace Willisson ([email protected])
July 1988
modified by John Hassey ([email protected])
x86-64 support added by Jan Hubicka ([email protected])
VIA PadLock support by Michal Ludvig ([email protected]). */
/* The main tables describing the instructions is essentially a copy
of the "Opcode Map" chapter (Appendix A) of the Intel 80386
Programmers Manual. Usually, there is a capital letter, followed
by a small letter. The capital letter tell the addressing mode,
and the small letter tells about the operand size. Refer to
the Intel manual for details. */
#include <stdlib.h>
#include "disas/bfd.h"
/* include/opcode/i386.h r1.78 */
/* opcode/i386.h -- Intel 80386 opcode macros
Copyright 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler, and GDB, the GNU Debugger.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
/* The SystemV/386 SVR3.2 assembler, and probably all AT&T derived
ix86 Unix assemblers, generate floating point instructions with
reversed source and destination registers in certain cases.
Unfortunately, gcc and possibly many other programs use this
reversed syntax, so we're stuck with it.
eg. `fsub %st(3),%st' results in st = st - st(3) as expected, but
`fsub %st,%st(3)' results in st(3) = st - st(3), rather than
the expected st(3) = st(3) - st
This happens with all the non-commutative arithmetic floating point
operations with two register operands, where the source register is
%st, and destination register is %st(i).
The affected opcode map is dceX, dcfX, deeX, defX. */
#ifndef SYSV386_COMPAT
/* Set non-zero for broken, compatible instructions. Set to zero for
non-broken opcodes at your peril. gcc generates SystemV/386
compatible instructions. */
#define SYSV386_COMPAT 1
#endif
#ifndef OLDGCC_COMPAT
/* Set non-zero to cater for old (<= 2.8.1) versions of gcc that could
generate nonsense fsubp, fsubrp, fdivp and fdivrp with operands
reversed. */
#define OLDGCC_COMPAT SYSV386_COMPAT
#endif
#define MOV_AX_DISP32 0xa0
#define POP_SEG_SHORT 0x07
#define JUMP_PC_RELATIVE 0xeb
#define INT_OPCODE 0xcd
#define INT3_OPCODE 0xcc
/* The opcode for the fwait instruction, which disassembler treats as a
prefix when it can. */
#define FWAIT_OPCODE 0x9b
#define ADDR_PREFIX_OPCODE 0x67
#define DATA_PREFIX_OPCODE 0x66
#define LOCK_PREFIX_OPCODE 0xf0
#define CS_PREFIX_OPCODE 0x2e
#define DS_PREFIX_OPCODE 0x3e
#define ES_PREFIX_OPCODE 0x26
#define FS_PREFIX_OPCODE 0x64
#define GS_PREFIX_OPCODE 0x65
#define SS_PREFIX_OPCODE 0x36
#define REPNE_PREFIX_OPCODE 0xf2
#define REPE_PREFIX_OPCODE 0xf3
#define TWO_BYTE_OPCODE_ESCAPE 0x0f
#define NOP_OPCODE (char) 0x90
/* register numbers */
#define EBP_REG_NUM 5
#define ESP_REG_NUM 4
/* modrm_byte.regmem for twobyte escape */
#define ESCAPE_TO_TWO_BYTE_ADDRESSING ESP_REG_NUM
/* index_base_byte.index for no index register addressing */
#define NO_INDEX_REGISTER ESP_REG_NUM
/* index_base_byte.base for no base register addressing */
#define NO_BASE_REGISTER EBP_REG_NUM
#define NO_BASE_REGISTER_16 6
/* modrm.mode = REGMEM_FIELD_HAS_REG when a register is in there */
#define REGMEM_FIELD_HAS_REG 0x3/* always = 0x3 */
#define REGMEM_FIELD_HAS_MEM (~REGMEM_FIELD_HAS_REG)
/* x86-64 extension prefix. */
#define REX_OPCODE 0x40
/* Indicates 64 bit operand size. */
#define REX_W 8
/* High extension to reg field of modrm byte. */
#define REX_R 4
/* High extension to SIB index field. */
#define REX_X 2
/* High extension to base field of modrm or SIB, or reg field of opcode. */
#define REX_B 1
/* max operands per insn */
#define MAX_OPERANDS 4
/* max immediates per insn (lcall, ljmp, insertq, extrq) */
#define MAX_IMMEDIATE_OPERANDS 2
/* max memory refs per insn (string ops) */
#define MAX_MEMORY_OPERANDS 2
/* max size of insn mnemonics. */
#define MAX_MNEM_SIZE 16
/* max size of register name in insn mnemonics. */
#define MAX_REG_NAME_SIZE 8
/* opcodes/i386-dis.c r1.126 */
#include "qemu-common.h"
#include <setjmp.h>
static int fetch_data2(struct disassemble_info *, bfd_byte *);
static int fetch_data(struct disassemble_info *, bfd_byte *);
static void ckprefix (void);
static const char *prefix_name (int, int);
static int print_insn (bfd_vma, disassemble_info *);
static void dofloat (int);
static void OP_ST (int, int);
static void OP_STi (int, int);
static int putop (const char *, int);
static void oappend (const char *);
static void append_seg (void);
static void OP_indirE (int, int);
static void print_operand_value (char *buf, size_t bufsize, int hex, bfd_vma disp);
static void print_displacement (char *, bfd_vma);
static void OP_E (int, int);
static void OP_G (int, int);
static bfd_vma get64 (void);
static bfd_signed_vma get32 (void);
static bfd_signed_vma get32s (void);
static int get16 (void);
static void set_op (bfd_vma, int);
static void OP_REG (int, int);
static void OP_IMREG (int, int);
static void OP_I (int, int);
static void OP_I64 (int, int);
static void OP_sI (int, int);
static void OP_J (int, int);
static void OP_SEG (int, int);
static void OP_DIR (int, int);
static void OP_OFF (int, int);
static void OP_OFF64 (int, int);
static void ptr_reg (int, int);
static void OP_ESreg (int, int);
static void OP_DSreg (int, int);
static void OP_C (int, int);
static void OP_D (int, int);
static void OP_T (int, int);
static void OP_R (int, int);
static void OP_MMX (int, int);
static void OP_XMM (int, int);
static void OP_EM (int, int);
static void OP_EX (int, int);
static void OP_EMC (int,int);
static void OP_MXC (int,int);
static void OP_MS (int, int);
static void OP_XS (int, int);
static void OP_M (int, int);
static void OP_VMX (int, int);
static void OP_0fae (int, int);
static void OP_0f07 (int, int);
static void NOP_Fixup1 (int, int);
static void NOP_Fixup2 (int, int);
static void OP_3DNowSuffix (int, int);
static void OP_SIMD_Suffix (int, int);
static void SIMD_Fixup (int, int);
static void PNI_Fixup (int, int);
static void SVME_Fixup (int, int);
static void INVLPG_Fixup (int, int);
static void BadOp (void);
static void VMX_Fixup (int, int);
static void REP_Fixup (int, int);
static void CMPXCHG8B_Fixup (int, int);
static void XMM_Fixup (int, int);
static void CRC32_Fixup (int, int);
struct dis_private {
/* Points to first byte not fetched. */
bfd_byte *max_fetched;
bfd_byte the_buffer[MAX_MNEM_SIZE];
bfd_vma insn_start;
int orig_sizeflag;
sigjmp_buf bailout;
};
enum address_mode
{
mode_16bit,
mode_32bit,
mode_64bit
};
static enum address_mode address_mode;
/* Flags for the prefixes for the current instruction. See below. */
static int prefixes;
/* REX prefix the current instruction. See below. */
static int rex;
/* Bits of REX we've already used. */
static int rex_used;
/* Mark parts used in the REX prefix. When we are testing for
empty prefix (for 8bit register REX extension), just mask it
out. Otherwise test for REX bit is excuse for existence of REX
only in case value is nonzero. */
#define USED_REX(value) \
{ \
if (value) \
{ \
if ((rex & value)) \
rex_used |= (value) | REX_OPCODE; \
} \
else \
rex_used |= REX_OPCODE; \
}
/* Flags for prefixes which we somehow handled when printing the
current instruction. */
static int used_prefixes;
/* Flags stored in PREFIXES. */
#define PREFIX_REPZ 1
#define PREFIX_REPNZ 2
#define PREFIX_LOCK 4
#define PREFIX_CS 8
#define PREFIX_SS 0x10
#define PREFIX_DS 0x20
#define PREFIX_ES 0x40
#define PREFIX_FS 0x80
#define PREFIX_GS 0x100
#define PREFIX_DATA 0x200
#define PREFIX_ADDR 0x400
#define PREFIX_FWAIT 0x800
/* Make sure that bytes from INFO->PRIVATE_DATA->BUFFER (inclusive)
to ADDR (exclusive) are valid. Returns 1 for success, longjmps
on error. */
static int
fetch_data2(struct disassemble_info *info, bfd_byte *addr)
{
int status;
struct dis_private *priv = (struct dis_private *) info->private_data;
bfd_vma start = priv->insn_start + (priv->max_fetched - priv->the_buffer);
if (addr <= priv->the_buffer + MAX_MNEM_SIZE)
status = (*info->read_memory_func) (start,
priv->max_fetched,
addr - priv->max_fetched,
info);
else
status = -1;
if (status != 0)
{
/* If we did manage to read at least one byte, then
print_insn_i386 will do something sensible. Otherwise, print
an error. We do that here because this is where we know
STATUS. */
if (priv->max_fetched == priv->the_buffer)
(*info->memory_error_func) (status, start, info);
siglongjmp(priv->bailout, 1);
}
else
priv->max_fetched = addr;
return 1;
}
static int
fetch_data(struct disassemble_info *info, bfd_byte *addr)
{
if (addr <= ((struct dis_private *) (info->private_data))->max_fetched) {
return 1;
} else {
return fetch_data2(info, addr);
}
}
#define XX { NULL, 0 }
#define Eb { OP_E, b_mode }
#define Ev { OP_E, v_mode }
#define Ed { OP_E, d_mode }
#define Edq { OP_E, dq_mode }
#define Edqw { OP_E, dqw_mode }
#define Edqb { OP_E, dqb_mode }
#define Edqd { OP_E, dqd_mode }
#define indirEv { OP_indirE, stack_v_mode }
#define indirEp { OP_indirE, f_mode }
#define stackEv { OP_E, stack_v_mode }
#define Em { OP_E, m_mode }
#define Ew { OP_E, w_mode }
#define M { OP_M, 0 } /* lea, lgdt, etc. */
#define Ma { OP_M, v_mode }
#define Mp { OP_M, f_mode } /* 32 or 48 bit memory operand for LDS, LES etc */
#define Mq { OP_M, q_mode }
#define Gb { OP_G, b_mode }
#define Gv { OP_G, v_mode }
#define Gd { OP_G, d_mode }
#define Gdq { OP_G, dq_mode }
#define Gm { OP_G, m_mode }
#define Gw { OP_G, w_mode }
#define Rd { OP_R, d_mode }
#define Rm { OP_R, m_mode }
#define Ib { OP_I, b_mode }
#define sIb { OP_sI, b_mode } /* sign extened byte */
#define Iv { OP_I, v_mode }
#define Iq { OP_I, q_mode }
#define Iv64 { OP_I64, v_mode }
#define Iw { OP_I, w_mode }
#define I1 { OP_I, const_1_mode }
#define Jb { OP_J, b_mode }
#define Jv { OP_J, v_mode }
#define Cm { OP_C, m_mode }
#define Dm { OP_D, m_mode }
#define Td { OP_T, d_mode }
#define RMeAX { OP_REG, eAX_reg }
#define RMeBX { OP_REG, eBX_reg }
#define RMeCX { OP_REG, eCX_reg }
#define RMeDX { OP_REG, eDX_reg }
#define RMeSP { OP_REG, eSP_reg }
#define RMeBP { OP_REG, eBP_reg }
#define RMeSI { OP_REG, eSI_reg }
#define RMeDI { OP_REG, eDI_reg }
#define RMrAX { OP_REG, rAX_reg }
#define RMrBX { OP_REG, rBX_reg }
#define RMrCX { OP_REG, rCX_reg }
#define RMrDX { OP_REG, rDX_reg }
#define RMrSP { OP_REG, rSP_reg }
#define RMrBP { OP_REG, rBP_reg }
#define RMrSI { OP_REG, rSI_reg }
#define RMrDI { OP_REG, rDI_reg }
#define RMAL { OP_REG, al_reg }
#define RMAL { OP_REG, al_reg }
#define RMCL { OP_REG, cl_reg }
#define RMDL { OP_REG, dl_reg }
#define RMBL { OP_REG, bl_reg }
#define RMAH { OP_REG, ah_reg }
#define RMCH { OP_REG, ch_reg }
#define RMDH { OP_REG, dh_reg }
#define RMBH { OP_REG, bh_reg }
#define RMAX { OP_REG, ax_reg }
#define RMDX { OP_REG, dx_reg }
#define eAX { OP_IMREG, eAX_reg }
#define eBX { OP_IMREG, eBX_reg }
#define eCX { OP_IMREG, eCX_reg }
#define eDX { OP_IMREG, eDX_reg }
#define eSP { OP_IMREG, eSP_reg }
#define eBP { OP_IMREG, eBP_reg }
#define eSI { OP_IMREG, eSI_reg }
#define eDI { OP_IMREG, eDI_reg }
#define AL { OP_IMREG, al_reg }
#define CL { OP_IMREG, cl_reg }
#define DL { OP_IMREG, dl_reg }
#define BL { OP_IMREG, bl_reg }
#define AH { OP_IMREG, ah_reg }
#define CH { OP_IMREG, ch_reg }
#define DH { OP_IMREG, dh_reg }
#define BH { OP_IMREG, bh_reg }
#define AX { OP_IMREG, ax_reg }
#define DX { OP_IMREG, dx_reg }
#define zAX { OP_IMREG, z_mode_ax_reg }
#define indirDX { OP_IMREG, indir_dx_reg }
#define Sw { OP_SEG, w_mode }
#define Sv { OP_SEG, v_mode }
#define Ap { OP_DIR, 0 }
#define Ob { OP_OFF64, b_mode }
#define Ov { OP_OFF64, v_mode }
#define Xb { OP_DSreg, eSI_reg }
#define Xv { OP_DSreg, eSI_reg }
#define Xz { OP_DSreg, eSI_reg }
#define Yb { OP_ESreg, eDI_reg }
#define Yv { OP_ESreg, eDI_reg }
#define DSBX { OP_DSreg, eBX_reg }
#define es { OP_REG, es_reg }
#define ss { OP_REG, ss_reg }
#define cs { OP_REG, cs_reg }
#define ds { OP_REG, ds_reg }
#define fs { OP_REG, fs_reg }
#define gs { OP_REG, gs_reg }
#define MX { OP_MMX, 0 }
#define XM { OP_XMM, 0 }
#define EM { OP_EM, v_mode }
#define EMd { OP_EM, d_mode }
#define EMq { OP_EM, q_mode }
#define EXd { OP_EX, d_mode }
#define EXq { OP_EX, q_mode }
#define EXx { OP_EX, x_mode }
#define MS { OP_MS, v_mode }
#define XS { OP_XS, v_mode }
#define EMC { OP_EMC, v_mode }
#define MXC { OP_MXC, 0 }
#define VM { OP_VMX, q_mode }
#define OPSUF { OP_3DNowSuffix, 0 }
#define OPSIMD { OP_SIMD_Suffix, 0 }
#define XMM0 { XMM_Fixup, 0 }
/* Used handle "rep" prefix for string instructions. */
#define Xbr { REP_Fixup, eSI_reg }
#define Xvr { REP_Fixup, eSI_reg }
#define Ybr { REP_Fixup, eDI_reg }
#define Yvr { REP_Fixup, eDI_reg }
#define Yzr { REP_Fixup, eDI_reg }
#define indirDXr { REP_Fixup, indir_dx_reg }
#define ALr { REP_Fixup, al_reg }
#define eAXr { REP_Fixup, eAX_reg }
#define cond_jump_flag { NULL, cond_jump_mode }
#define loop_jcxz_flag { NULL, loop_jcxz_mode }
/* bits in sizeflag */
#define SUFFIX_ALWAYS 4
#define AFLAG 2
#define DFLAG 1
#define b_mode 1 /* byte operand */
#define v_mode 2 /* operand size depends on prefixes */
#define w_mode 3 /* word operand */
#define d_mode 4 /* double word operand */
#define q_mode 5 /* quad word operand */
#define t_mode 6 /* ten-byte operand */
#define x_mode 7 /* 16-byte XMM operand */
#define m_mode 8 /* d_mode in 32bit, q_mode in 64bit mode. */
#define cond_jump_mode 9
#define loop_jcxz_mode 10
#define dq_mode 11 /* operand size depends on REX prefixes. */
#define dqw_mode 12 /* registers like dq_mode, memory like w_mode. */
#define f_mode 13 /* 4- or 6-byte pointer operand */
#define const_1_mode 14
#define stack_v_mode 15 /* v_mode for stack-related opcodes. */
#define z_mode 16 /* non-quad operand size depends on prefixes */
#define o_mode 17 /* 16-byte operand */
#define dqb_mode 18 /* registers like dq_mode, memory like b_mode. */
#define dqd_mode 19 /* registers like dq_mode, memory like d_mode. */
#define es_reg 100
#define cs_reg 101
#define ss_reg 102
#define ds_reg 103
#define fs_reg 104
#define gs_reg 105
#define eAX_reg 108
#define eCX_reg 109
#define eDX_reg 110
#define eBX_reg 111
#define eSP_reg 112
#define eBP_reg 113
#define eSI_reg 114
#define eDI_reg 115
#define al_reg 116
#define cl_reg 117
#define dl_reg 118
#define bl_reg 119
#define ah_reg 120
#define ch_reg 121
#define dh_reg 122
#define bh_reg 123
#define ax_reg 124
#define cx_reg 125
#define dx_reg 126
#define bx_reg 127
#define sp_reg 128
#define bp_reg 129
#define si_reg 130
#define di_reg 131
#define rAX_reg 132
#define rCX_reg 133
#define rDX_reg 134
#define rBX_reg 135
#define rSP_reg 136
#define rBP_reg 137
#define rSI_reg 138
#define rDI_reg 139
#define z_mode_ax_reg 149
#define indir_dx_reg 150
#define FLOATCODE 1
#define USE_GROUPS 2
#define USE_PREFIX_USER_TABLE 3
#define X86_64_SPECIAL 4
#define IS_3BYTE_OPCODE 5
#define FLOAT NULL, { { NULL, FLOATCODE } }
#define GRP1a NULL, { { NULL, USE_GROUPS }, { NULL, 0 } }
#define GRP1b NULL, { { NULL, USE_GROUPS }, { NULL, 1 } }
#define GRP1S NULL, { { NULL, USE_GROUPS }, { NULL, 2 } }
#define GRP1Ss NULL, { { NULL, USE_GROUPS }, { NULL, 3 } }
#define GRP2b NULL, { { NULL, USE_GROUPS }, { NULL, 4 } }
#define GRP2S NULL, { { NULL, USE_GROUPS }, { NULL, 5 } }
#define GRP2b_one NULL, { { NULL, USE_GROUPS }, { NULL, 6 } }
#define GRP2S_one NULL, { { NULL, USE_GROUPS }, { NULL, 7 } }
#define GRP2b_cl NULL, { { NULL, USE_GROUPS }, { NULL, 8 } }
#define GRP2S_cl NULL, { { NULL, USE_GROUPS }, { NULL, 9 } }
#define GRP3b NULL, { { NULL, USE_GROUPS }, { NULL, 10 } }
#define GRP3S NULL, { { NULL, USE_GROUPS }, { NULL, 11 } }
#define GRP4 NULL, { { NULL, USE_GROUPS }, { NULL, 12 } }
#define GRP5 NULL, { { NULL, USE_GROUPS }, { NULL, 13 } }
#define GRP6 NULL, { { NULL, USE_GROUPS }, { NULL, 14 } }
#define GRP7 NULL, { { NULL, USE_GROUPS }, { NULL, 15 } }
#define GRP8 NULL, { { NULL, USE_GROUPS }, { NULL, 16 } }
#define GRP9 NULL, { { NULL, USE_GROUPS }, { NULL, 17 } }
#define GRP11_C6 NULL, { { NULL, USE_GROUPS }, { NULL, 18 } }
#define GRP11_C7 NULL, { { NULL, USE_GROUPS }, { NULL, 19 } }
#define GRP12 NULL, { { NULL, USE_GROUPS }, { NULL, 20 } }
#define GRP13 NULL, { { NULL, USE_GROUPS }, { NULL, 21 } }
#define GRP14 NULL, { { NULL, USE_GROUPS }, { NULL, 22 } }
#define GRP15 NULL, { { NULL, USE_GROUPS }, { NULL, 23 } }
#define GRP16 NULL, { { NULL, USE_GROUPS }, { NULL, 24 } }
#define GRPAMD NULL, { { NULL, USE_GROUPS }, { NULL, 25 } }
#define GRPPADLCK1 NULL, { { NULL, USE_GROUPS }, { NULL, 26 } }
#define GRPPADLCK2 NULL, { { NULL, USE_GROUPS }, { NULL, 27 } }
#define PREGRP0 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 0 } }
#define PREGRP1 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 1 } }
#define PREGRP2 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 2 } }
#define PREGRP3 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 3 } }
#define PREGRP4 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 4 } }
#define PREGRP5 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 5 } }
#define PREGRP6 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 6 } }
#define PREGRP7 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 7 } }
#define PREGRP8 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 8 } }
#define PREGRP9 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 9 } }
#define PREGRP10 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 10 } }
#define PREGRP11 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 11 } }
#define PREGRP12 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 12 } }
#define PREGRP13 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 13 } }
#define PREGRP14 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 14 } }
#define PREGRP15 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 15 } }
#define PREGRP16 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 16 } }
#define PREGRP17 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 17 } }
#define PREGRP18 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 18 } }
#define PREGRP19 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 19 } }
#define PREGRP20 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 20 } }
#define PREGRP21 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 21 } }
#define PREGRP22 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 22 } }
#define PREGRP23 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 23 } }
#define PREGRP24 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 24 } }
#define PREGRP25 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 25 } }
#define PREGRP26 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 26 } }
#define PREGRP27 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 27 } }
#define PREGRP28 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 28 } }
#define PREGRP29 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 29 } }
#define PREGRP30 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 30 } }
#define PREGRP31 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 31 } }
#define PREGRP32 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 32 } }
#define PREGRP33 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 33 } }
#define PREGRP34 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 34 } }
#define PREGRP35 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 35 } }
#define PREGRP36 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 36 } }
#define PREGRP37 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 37 } }
#define PREGRP38 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 38 } }
#define PREGRP39 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 39 } }
#define PREGRP40 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 40 } }
#define PREGRP41 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 41 } }
#define PREGRP42 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 42 } }
#define PREGRP43 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 43 } }
#define PREGRP44 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 44 } }
#define PREGRP45 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 45 } }
#define PREGRP46 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 46 } }
#define PREGRP47 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 47 } }
#define PREGRP48 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 48 } }
#define PREGRP49 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 49 } }
#define PREGRP50 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 50 } }
#define PREGRP51 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 51 } }
#define PREGRP52 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 52 } }
#define PREGRP53 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 53 } }
#define PREGRP54 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 54 } }
#define PREGRP55 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 55 } }
#define PREGRP56 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 56 } }
#define PREGRP57 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 57 } }
#define PREGRP58 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 58 } }
#define PREGRP59 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 59 } }
#define PREGRP60 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 60 } }
#define PREGRP61 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 61 } }
#define PREGRP62 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 62 } }
#define PREGRP63 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 63 } }
#define PREGRP64 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 64 } }
#define PREGRP65 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 65 } }
#define PREGRP66 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 66 } }
#define PREGRP67 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 67 } }
#define PREGRP68 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 68 } }
#define PREGRP69 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 69 } }
#define PREGRP70 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 70 } }
#define PREGRP71 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 71 } }
#define PREGRP72 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 72 } }
#define PREGRP73 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 73 } }
#define PREGRP74 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 74 } }
#define PREGRP75 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 75 } }
#define PREGRP76 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 76 } }
#define PREGRP77 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 77 } }
#define PREGRP78 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 78 } }
#define PREGRP79 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 79 } }
#define PREGRP80 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 80 } }
#define PREGRP81 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 81 } }
#define PREGRP82 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 82 } }
#define PREGRP83 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 83 } }
#define PREGRP84 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 84 } }
#define PREGRP85 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 85 } }
#define PREGRP86 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 86 } }
#define PREGRP87 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 87 } }
#define PREGRP88 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 88 } }
#define PREGRP89 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 89 } }
#define PREGRP90 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 90 } }
#define PREGRP91 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 91 } }
#define PREGRP92 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 92 } }
#define PREGRP93 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 93 } }
#define PREGRP94 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 94 } }
#define PREGRP95 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 95 } }
#define PREGRP96 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 96 } }
#define PREGRP97 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 97 } }
#define PREGRP98 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 98 } }
#define PREGRP99 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 99 } }
#define PREGRP100 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 100 } }
#define PREGRP101 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 101 } }
#define PREGRP102 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 102 } }
#define PREGRP103 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 103 } }
#define PREGRP104 NULL, { { NULL, USE_PREFIX_USER_TABLE }, { NULL, 104 } }
#define X86_64_0 NULL, { { NULL, X86_64_SPECIAL }, { NULL, 0 } }
#define X86_64_1 NULL, { { NULL, X86_64_SPECIAL }, { NULL, 1 } }
#define X86_64_2 NULL, { { NULL, X86_64_SPECIAL }, { NULL, 2 } }
#define X86_64_3 NULL, { { NULL, X86_64_SPECIAL }, { NULL, 3 } }
#define THREE_BYTE_0 NULL, { { NULL, IS_3BYTE_OPCODE }, { NULL, 0 } }
#define THREE_BYTE_1 NULL, { { NULL, IS_3BYTE_OPCODE }, { NULL, 1 } }
typedef void (*op_rtn) (int bytemode, int sizeflag);
struct dis386 {
const char *name;
struct
{
op_rtn rtn;
int bytemode;
} op[MAX_OPERANDS];
};
/* Upper case letters in the instruction names here are macros.
'A' => print 'b' if no register operands or suffix_always is true
'B' => print 'b' if suffix_always is true
'C' => print 's' or 'l' ('w' or 'd' in Intel mode) depending on operand
. size prefix
'D' => print 'w' if no register operands or 'w', 'l' or 'q', if
. suffix_always is true
'E' => print 'e' if 32-bit form of jcxz
'F' => print 'w' or 'l' depending on address size prefix (loop insns)
'G' => print 'w' or 'l' depending on operand size prefix (i/o insns)
'H' => print ",pt" or ",pn" branch hint
'I' => honor following macro letter even in Intel mode (implemented only
. for some of the macro letters)
'J' => print 'l'
'K' => print 'd' or 'q' if rex prefix is present.
'L' => print 'l' if suffix_always is true
'N' => print 'n' if instruction has no wait "prefix"
'O' => print 'd' or 'o' (or 'q' in Intel mode)
'P' => print 'w', 'l' or 'q' if instruction has an operand size prefix,
. or suffix_always is true. print 'q' if rex prefix is present.
'Q' => print 'w', 'l' or 'q' if no register operands or suffix_always
. is true
'R' => print 'w', 'l' or 'q' ('d' for 'l' and 'e' in Intel mode)
'S' => print 'w', 'l' or 'q' if suffix_always is true
'T' => print 'q' in 64bit mode and behave as 'P' otherwise
'U' => print 'q' in 64bit mode and behave as 'Q' otherwise
'V' => print 'q' in 64bit mode and behave as 'S' otherwise
'W' => print 'b', 'w' or 'l' ('d' in Intel mode)
'X' => print 's', 'd' depending on data16 prefix (for XMM)
'Y' => 'q' if instruction has an REX 64bit overwrite prefix
'Z' => print 'q' in 64bit mode and behave as 'L' otherwise
Many of the above letters print nothing in Intel mode. See "putop"
for the details.
Braces '{' and '}', and vertical bars '|', indicate alternative
mnemonic strings for AT&T, Intel, X86_64 AT&T, and X86_64 Intel
modes. In cases where there are only two alternatives, the X86_64
instruction is reserved, and "(bad)" is printed.
*/
static const struct dis386 dis386[] = {
/* 00 */
{ "addB", { Eb, Gb } },
{ "addS", { Ev, Gv } },
{ "addB", { Gb, Eb } },
{ "addS", { Gv, Ev } },
{ "addB", { AL, Ib } },
{ "addS", { eAX, Iv } },
{ "push{T|}", { es } },
{ "pop{T|}", { es } },
/* 08 */
{ "orB", { Eb, Gb } },
{ "orS", { Ev, Gv } },
{ "orB", { Gb, Eb } },
{ "orS", { Gv, Ev } },
{ "orB", { AL, Ib } },
{ "orS", { eAX, Iv } },
{ "push{T|}", { cs } },
{ "(bad)", { XX } }, /* 0x0f extended opcode escape */
/* 10 */
{ "adcB", { Eb, Gb } },
{ "adcS", { Ev, Gv } },
{ "adcB", { Gb, Eb } },
{ "adcS", { Gv, Ev } },
{ "adcB", { AL, Ib } },
{ "adcS", { eAX, Iv } },
{ "push{T|}", { ss } },
{ "pop{T|}", { ss } },
/* 18 */
{ "sbbB", { Eb, Gb } },
{ "sbbS", { Ev, Gv } },
{ "sbbB", { Gb, Eb } },
{ "sbbS", { Gv, Ev } },
{ "sbbB", { AL, Ib } },
{ "sbbS", { eAX, Iv } },
{ "push{T|}", { ds } },
{ "pop{T|}", { ds } },
/* 20 */
{ "andB", { Eb, Gb } },
{ "andS", { Ev, Gv } },
{ "andB", { Gb, Eb } },
{ "andS", { Gv, Ev } },
{ "andB", { AL, Ib } },
{ "andS", { eAX, Iv } },
{ "(bad)", { XX } }, /* SEG ES prefix */
{ "daa{|}", { XX } },
/* 28 */
{ "subB", { Eb, Gb } },
{ "subS", { Ev, Gv } },
{ "subB", { Gb, Eb } },
{ "subS", { Gv, Ev } },
{ "subB", { AL, Ib } },
{ "subS", { eAX, Iv } },
{ "(bad)", { XX } }, /* SEG CS prefix */
{ "das{|}", { XX } },
/* 30 */
{ "xorB", { Eb, Gb } },
{ "xorS", { Ev, Gv } },
{ "xorB", { Gb, Eb } },
{ "xorS", { Gv, Ev } },
{ "xorB", { AL, Ib } },
{ "xorS", { eAX, Iv } },
{ "(bad)", { XX } }, /* SEG SS prefix */
{ "aaa{|}", { XX } },
/* 38 */
{ "cmpB", { Eb, Gb } },
{ "cmpS", { Ev, Gv } },
{ "cmpB", { Gb, Eb } },
{ "cmpS", { Gv, Ev } },
{ "cmpB", { AL, Ib } },
{ "cmpS", { eAX, Iv } },
{ "(bad)", { XX } }, /* SEG DS prefix */
{ "aas{|}", { XX } },
/* 40 */
{ "inc{S|}", { RMeAX } },
{ "inc{S|}", { RMeCX } },
{ "inc{S|}", { RMeDX } },
{ "inc{S|}", { RMeBX } },
{ "inc{S|}", { RMeSP } },
{ "inc{S|}", { RMeBP } },
{ "inc{S|}", { RMeSI } },
{ "inc{S|}", { RMeDI } },
/* 48 */
{ "dec{S|}", { RMeAX } },
{ "dec{S|}", { RMeCX } },
{ "dec{S|}", { RMeDX } },
{ "dec{S|}", { RMeBX } },
{ "dec{S|}", { RMeSP } },
{ "dec{S|}", { RMeBP } },
{ "dec{S|}", { RMeSI } },
{ "dec{S|}", { RMeDI } },
/* 50 */
{ "pushV", { RMrAX } },
{ "pushV", { RMrCX } },
{ "pushV", { RMrDX } },
{ "pushV", { RMrBX } },
{ "pushV", { RMrSP } },
{ "pushV", { RMrBP } },
{ "pushV", { RMrSI } },
{ "pushV", { RMrDI } },
/* 58 */
{ "popV", { RMrAX } },
{ "popV", { RMrCX } },
{ "popV", { RMrDX } },
{ "popV", { RMrBX } },
{ "popV", { RMrSP } },
{ "popV", { RMrBP } },
{ "popV", { RMrSI } },
{ "popV", { RMrDI } },
/* 60 */
{ X86_64_0 },
{ X86_64_1 },
{ X86_64_2 },
{ X86_64_3 },
{ "(bad)", { XX } }, /* seg fs */
{ "(bad)", { XX } }, /* seg gs */
{ "(bad)", { XX } }, /* op size prefix */
{ "(bad)", { XX } }, /* adr size prefix */
/* 68 */
{ "pushT", { Iq } },
{ "imulS", { Gv, Ev, Iv } },
{ "pushT", { sIb } },
{ "imulS", { Gv, Ev, sIb } },
{ "ins{b||b|}", { Ybr, indirDX } },
{ "ins{R||G|}", { Yzr, indirDX } },
{ "outs{b||b|}", { indirDXr, Xb } },
{ "outs{R||G|}", { indirDXr, Xz } },
/* 70 */
{ "joH", { Jb, XX, cond_jump_flag } },
{ "jnoH", { Jb, XX, cond_jump_flag } },
{ "jbH", { Jb, XX, cond_jump_flag } },
{ "jaeH", { Jb, XX, cond_jump_flag } },
{ "jeH", { Jb, XX, cond_jump_flag } },
{ "jneH", { Jb, XX, cond_jump_flag } },
{ "jbeH", { Jb, XX, cond_jump_flag } },
{ "jaH", { Jb, XX, cond_jump_flag } },
/* 78 */
{ "jsH", { Jb, XX, cond_jump_flag } },
{ "jnsH", { Jb, XX, cond_jump_flag } },
{ "jpH", { Jb, XX, cond_jump_flag } },
{ "jnpH", { Jb, XX, cond_jump_flag } },
{ "jlH", { Jb, XX, cond_jump_flag } },
{ "jgeH", { Jb, XX, cond_jump_flag } },
{ "jleH", { Jb, XX, cond_jump_flag } },
{ "jgH", { Jb, XX, cond_jump_flag } },
/* 80 */
{ GRP1b },
{ GRP1S },
{ "(bad)", { XX } },
{ GRP1Ss },
{ "testB", { Eb, Gb } },
{ "testS", { Ev, Gv } },
{ "xchgB", { Eb, Gb } },
{ "xchgS", { Ev, Gv } },
/* 88 */
{ "movB", { Eb, Gb } },
{ "movS", { Ev, Gv } },
{ "movB", { Gb, Eb } },
{ "movS", { Gv, Ev } },
{ "movD", { Sv, Sw } },
{ "leaS", { Gv, M } },
{ "movD", { Sw, Sv } },
{ GRP1a },
/* 90 */
{ PREGRP38 },
{ "xchgS", { RMeCX, eAX } },
{ "xchgS", { RMeDX, eAX } },
{ "xchgS", { RMeBX, eAX } },
{ "xchgS", { RMeSP, eAX } },
{ "xchgS", { RMeBP, eAX } },
{ "xchgS", { RMeSI, eAX } },
{ "xchgS", { RMeDI, eAX } },
/* 98 */
{ "cW{t||t|}R", { XX } },
{ "cR{t||t|}O", { XX } },
{ "Jcall{T|}", { Ap } },
{ "(bad)", { XX } }, /* fwait */
{ "pushfT", { XX } },
{ "popfT", { XX } },
{ "sahf{|}", { XX } },
{ "lahf{|}", { XX } },
/* a0 */
{ "movB", { AL, Ob } },
{ "movS", { eAX, Ov } },
{ "movB", { Ob, AL } },
{ "movS", { Ov, eAX } },
{ "movs{b||b|}", { Ybr, Xb } },
{ "movs{R||R|}", { Yvr, Xv } },
{ "cmps{b||b|}", { Xb, Yb } },
{ "cmps{R||R|}", { Xv, Yv } },
/* a8 */
{ "testB", { AL, Ib } },
{ "testS", { eAX, Iv } },
{ "stosB", { Ybr, AL } },
{ "stosS", { Yvr, eAX } },
{ "lodsB", { ALr, Xb } },
{ "lodsS", { eAXr, Xv } },
{ "scasB", { AL, Yb } },
{ "scasS", { eAX, Yv } },
/* b0 */
{ "movB", { RMAL, Ib } },
{ "movB", { RMCL, Ib } },
{ "movB", { RMDL, Ib } },
{ "movB", { RMBL, Ib } },
{ "movB", { RMAH, Ib } },
{ "movB", { RMCH, Ib } },
{ "movB", { RMDH, Ib } },
{ "movB", { RMBH, Ib } },
/* b8 */
{ "movS", { RMeAX, Iv64 } },
{ "movS", { RMeCX, Iv64 } },
{ "movS", { RMeDX, Iv64 } },
{ "movS", { RMeBX, Iv64 } },
{ "movS", { RMeSP, Iv64 } },
{ "movS", { RMeBP, Iv64 } },
{ "movS", { RMeSI, Iv64 } },
{ "movS", { RMeDI, Iv64 } },
/* c0 */
{ GRP2b },
{ GRP2S },
{ "retT", { Iw } },
{ "retT", { XX } },
{ "les{S|}", { Gv, Mp } },
{ "ldsS", { Gv, Mp } },
{ GRP11_C6 },
{ GRP11_C7 },
/* c8 */
{ "enterT", { Iw, Ib } },
{ "leaveT", { XX } },
{ "lretP", { Iw } },
{ "lretP", { XX } },
{ "int3", { XX } },
{ "int", { Ib } },
{ "into{|}", { XX } },
{ "iretP", { XX } },
/* d0 */
{ GRP2b_one },
{ GRP2S_one },
{ GRP2b_cl },
{ GRP2S_cl },
{ "aam{|}", { sIb } },
{ "aad{|}", { sIb } },
{ "(bad)", { XX } },
{ "xlat", { DSBX } },
/* d8 */
{ FLOAT },
{ FLOAT },
{ FLOAT },
{ FLOAT },
{ FLOAT },
{ FLOAT },
{ FLOAT },
{ FLOAT },
/* e0 */
{ "loopneFH", { Jb, XX, loop_jcxz_flag } },
{ "loopeFH", { Jb, XX, loop_jcxz_flag } },
{ "loopFH", { Jb, XX, loop_jcxz_flag } },
{ "jEcxzH", { Jb, XX, loop_jcxz_flag } },
{ "inB", { AL, Ib } },
{ "inG", { zAX, Ib } },
{ "outB", { Ib, AL } },
{ "outG", { Ib, zAX } },
/* e8 */
{ "callT", { Jv } },
{ "jmpT", { Jv } },