/* i386-opcode.h -- Intel 80386 opcode table Copyright 1989, 1991, 1992 Free Software Foundation. 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, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ static const template i386_optab[] = { #define _ None /* move instructions */ { "mov", 2, 0xa0, _, DW|NoModrm, Disp32, Acc, 0 }, { "mov", 2, 0x88, _, DW|Modrm, Reg, Reg|Mem, 0 }, { "mov", 2, 0xb0, _, ShortFormW, Imm, Reg, 0 }, { "mov", 2, 0xc6, _, W|Modrm, Imm, Reg|Mem, 0 }, { "mov", 2, 0x8c, _, D|Modrm, SReg3|SReg2, Reg16|Mem16, 0 }, /* move to/from control debug registers */ { "mov", 2, 0x0f20, _, D|Modrm, Control, Reg32, 0}, { "mov", 2, 0x0f21, _, D|Modrm, Debug, Reg32, 0}, { "mov", 2, 0x0f24, _, D|Modrm, Test, Reg32, 0}, /* move with sign extend */ /* "movsbl" & "movsbw" must not be unified into "movsb" to avoid conflict with the "movs" string move instruction. Thus, {"movsb", 2, 0x0fbe, _, ReverseRegRegmem|Modrm, Reg8|Mem, Reg16|Reg32, 0}, is not kosher; we must seperate the two instructions. */ {"movsbl", 2, 0x0fbe, _, ReverseRegRegmem|Modrm, Reg8|Mem, Reg32, 0}, {"movsbw", 2, 0x660fbe, _, ReverseRegRegmem|Modrm, Reg8|Mem, Reg16, 0}, {"movswl", 2, 0x0fbf, _, ReverseRegRegmem|Modrm, Reg16|Mem, Reg32, 0}, /* move with zero extend */ {"movzb", 2, 0x0fb6, _, ReverseRegRegmem|Modrm, Reg8|Mem, Reg16|Reg32, 0}, {"movzwl", 2, 0x0fb7, _, ReverseRegRegmem|Modrm, Reg16|Mem, Reg32, 0}, /* push instructions */ {"push", 1, 0x50, _, ShortForm, WordReg,0,0 }, {"push", 1, 0xff, 0x6, Modrm, WordReg|WordMem, 0, 0 }, {"push", 1, 0x6a, _, NoModrm, Imm8S, 0, 0}, {"push", 1, 0x68, _, NoModrm, Imm32, 0, 0}, {"push", 1, 0x06, _, Seg2ShortForm, SReg2,0,0 }, {"push", 1, 0x0fa0, _, Seg3ShortForm, SReg3,0,0 }, /* push all */ {"pusha", 0, 0x60, _, NoModrm, 0, 0, 0 }, /* pop instructions */ {"pop", 1, 0x58, _, ShortForm, WordReg,0,0 }, {"pop", 1, 0x8f, 0x0, Modrm, WordReg|WordMem, 0, 0 }, #define POP_SEG_SHORT 0x7 {"pop", 1, 0x07, _, Seg2ShortForm, SReg2,0,0 }, {"pop", 1, 0x0fa1, _, Seg3ShortForm, SReg3,0,0 }, /* pop all */ {"popa", 0, 0x61, _, NoModrm, 0, 0, 0 }, /* xchg exchange instructions xchg commutes: we allow both operand orders */ {"xchg", 2, 0x90, _, ShortForm, WordReg, Acc, 0 }, {"xchg", 2, 0x90, _, ShortForm, Acc, WordReg, 0 }, {"xchg", 2, 0x86, _, W|Modrm, Reg, Reg|Mem, 0 }, {"xchg", 2, 0x86, _, W|Modrm, Reg|Mem, Reg, 0 }, /* in/out from ports */ {"in", 2, 0xe4, _, W|NoModrm, Imm8, Acc, 0 }, {"in", 2, 0xec, _, W|NoModrm, InOutPortReg, Acc, 0 }, {"out", 2, 0xe6, _, W|NoModrm, Acc, Imm8, 0 }, {"out", 2, 0xee, _, W|NoModrm, Acc, InOutPortReg, 0 }, {"inb", 1, 0xe4, _, NoModrm, Imm8, 0, 0 }, {"inb", 1, 0xec, _, NoModrm, WordMem, 0, 0 }, {"inw", 1, 0x66e5, _, NoModrm, Imm8, 0, 0 }, {"inw", 1, 0x66ed, _, NoModrm, WordMem, 0, 0 }, {"outb", 1, 0xe6, _, NoModrm, Imm8, 0, 0 }, {"outb", 1, 0xee, _, NoModrm, WordMem, 0, 0 }, {"outw", 1, 0x66e7, _, NoModrm, Imm8, 0, 0 }, {"outw", 1, 0x66ef, _, NoModrm, WordMem, 0, 0 }, /* load effective address */ {"lea", 2, 0x8d, _, Modrm, WordMem, WordReg, 0 }, /* load segment registers from memory */ {"lds", 2, 0xc5, _, Modrm, Mem, Reg32, 0}, {"les", 2, 0xc4, _, Modrm, Mem, Reg32, 0}, {"lfs", 2, 0x0fb4, _, Modrm, Mem, Reg32, 0}, {"lgs", 2, 0x0fb5, _, Modrm, Mem, Reg32, 0}, {"lss", 2, 0x0fb2, _, Modrm, Mem, Reg32, 0}, /* flags register instructions */ {"clc", 0, 0xf8, _, NoModrm, 0, 0, 0}, {"cld", 0, 0xfc, _, NoModrm, 0, 0, 0}, {"cli", 0, 0xfa, _, NoModrm, 0, 0, 0}, {"clts", 0, 0x0f06, _, NoModrm, 0, 0, 0}, {"cmc", 0, 0xf5, _, NoModrm, 0, 0, 0}, {"lahf", 0, 0x9f, _, NoModrm, 0, 0, 0}, {"sahf", 0, 0x9e, _, NoModrm, 0, 0, 0}, {"pushf", 0, 0x9c, _, NoModrm, 0, 0, 0}, {"popf", 0, 0x9d, _, NoModrm, 0, 0, 0}, {"stc", 0, 0xf9, _, NoModrm, 0, 0, 0}, {"std", 0, 0xfd, _, NoModrm, 0, 0, 0}, {"sti", 0, 0xfb, _, NoModrm, 0, 0, 0}, {"add", 2, 0x0, _, DW|Modrm, Reg, Reg|Mem, 0}, {"add", 2, 0x83, 0, Modrm, Imm8S, WordReg|WordMem, 0}, {"add", 2, 0x4, _, W|NoModrm, Imm, Acc, 0}, {"add", 2, 0x80, 0, W|Modrm, Imm, Reg|Mem, 0}, {"inc", 1, 0x40, _, ShortForm, WordReg, 0, 0}, {"inc", 1, 0xfe, 0, W|Modrm, Reg|Mem, 0, 0}, {"sub", 2, 0x28, _, DW|Modrm, Reg, Reg|Mem, 0}, {"sub", 2, 0x83, 5, Modrm, Imm8S, WordReg|WordMem, 0}, {"sub", 2, 0x2c, _, W|NoModrm, Imm, Acc, 0}, {"sub", 2, 0x80, 5, W|Modrm, Imm, Reg|Mem, 0}, {"dec", 1, 0x48, _, ShortForm, WordReg, 0, 0}, {"dec", 1, 0xfe, 1, W|Modrm, Reg|Mem, 0, 0}, {"sbb", 2, 0x18, _, DW|Modrm, Reg, Reg|Mem, 0}, {"sbb", 2, 0x83, 3, Modrm, Imm8S, WordReg|WordMem, 0}, {"sbb", 2, 0x1c, _, W|NoModrm, Imm, Acc, 0}, {"sbb", 2, 0x80, 3, W|Modrm, Imm, Reg|Mem, 0}, {"cmp", 2, 0x38, _, DW|Modrm, Reg, Reg|Mem, 0}, {"cmp", 2, 0x83, 7, Modrm, Imm8S, WordReg|WordMem, 0}, {"cmp", 2, 0x3c, _, W|NoModrm, Imm, Acc, 0}, {"cmp", 2, 0x80, 7, W|Modrm, Imm, Reg|Mem, 0}, {"test", 2, 0x84, _, W|Modrm, Reg|Mem, Reg, 0}, {"test", 2, 0x84, _, W|Modrm, Reg, Reg|Mem, 0}, {"test", 2, 0xa8, _, W|NoModrm, Imm, Acc, 0}, {"test", 2, 0xf6, 0, W|Modrm, Imm, Reg|Mem, 0}, {"and", 2, 0x20, _, DW|Modrm, Reg, Reg|Mem, 0}, {"and", 2, 0x83, 4, Modrm, Imm8S, WordReg|WordMem, 0}, {"and", 2, 0x24, _, W|NoModrm, Imm, Acc, 0}, {"and", 2, 0x80, 4, W|Modrm, Imm, Reg|Mem, 0}, {"or", 2, 0x08, _, DW|Modrm, Reg, Reg|Mem, 0}, {"or", 2, 0x83, 1, Modrm, Imm8S, WordReg|WordMem, 0}, {"or", 2, 0x0c, _, W|NoModrm, Imm, Acc, 0}, {"or", 2, 0x80, 1, W|Modrm, Imm, Reg|Mem, 0}, {"xor", 2, 0x30, _, DW|Modrm, Reg, Reg|Mem, 0}, {"xor", 2, 0x83, 6, Modrm, Imm8S, WordReg|WordMem, 0}, {"xor", 2, 0x34, _, W|NoModrm, Imm, Acc, 0}, {"xor", 2, 0x80, 6, W|Modrm, Imm, Reg|Mem, 0}, {"adc", 2, 0x10, _, DW|Modrm, Reg, Reg|Mem, 0}, {"adc", 2, 0x83, 2, Modrm, Imm8S, WordReg|WordMem, 0}, {"adc", 2, 0x14, _, W|NoModrm, Imm, Acc, 0}, {"adc", 2, 0x80, 2, W|Modrm, Imm, Reg|Mem, 0}, {"neg", 1, 0xf6, 3, W|Modrm, Reg|Mem, 0, 0}, {"not", 1, 0xf6, 2, W|Modrm, Reg|Mem, 0, 0}, {"aaa", 0, 0x37, _, NoModrm, 0, 0, 0}, {"aas", 0, 0x3f, _, NoModrm, 0, 0, 0}, {"daa", 0, 0x27, _, NoModrm, 0, 0, 0}, {"das", 0, 0x2f, _, NoModrm, 0, 0, 0}, {"aad", 0, 0xd50a, _, NoModrm, 0, 0, 0}, {"aam", 0, 0xd40a, _, NoModrm, 0, 0, 0}, /* conversion insns */ /* conversion: intel naming */ {"cbw", 0, 0x6698, _, NoModrm, 0, 0, 0}, {"cwd", 0, 0x6699, _, NoModrm, 0, 0, 0}, {"cwde", 0, 0x98, _, NoModrm, 0, 0, 0}, {"cdq", 0, 0x99, _, NoModrm, 0, 0, 0}, /* att naming */ {"cbtw", 0, 0x6698, _, NoModrm, 0, 0, 0}, {"cwtl", 0, 0x98, _, NoModrm, 0, 0, 0}, {"cwtd", 0, 0x6699, _, NoModrm, 0, 0, 0}, {"cltd", 0, 0x99, _, NoModrm, 0, 0, 0}, /* Warning! the mul/imul (opcode 0xf6) must only have 1 operand! They are expanding 64-bit multiplies, and *cannot* be selected to accomplish 'imul %ebx, %eax' (opcode 0x0faf must be used in this case) These multiplies can only be selected with single opearnd forms. */ {"mul", 1, 0xf6, 4, W|Modrm, Reg|Mem, 0, 0}, {"imul", 1, 0xf6, 5, W|Modrm, Reg|Mem, 0, 0}, /* imulKludge here is needed to reverse the i.rm.reg & i.rm.regmem fields. These instructions are exceptions: 'imul $2, %eax, %ecx' would put '%eax' in the reg field and '%ecx' in the regmem field if we did not switch them. */ {"imul", 2, 0x0faf, _, Modrm|ReverseRegRegmem, WordReg|Mem, WordReg, 0}, {"imul", 3, 0x6b, _, Modrm|ReverseRegRegmem, Imm8S, WordReg|Mem, WordReg}, {"imul", 3, 0x69, _, Modrm|ReverseRegRegmem, Imm16|Imm32, WordReg|Mem, WordReg}, /* imul with 2 operands mimicks imul with 3 by puting register both in i.rm.reg & i.rm.regmem fields */ {"imul", 2, 0x6b, _, Modrm|imulKludge, Imm8S, WordReg, 0}, {"imul", 2, 0x69, _, Modrm|imulKludge, Imm16|Imm32, WordReg, 0}, {"div", 1, 0xf6, 6, W|Modrm, Reg|Mem, 0, 0}, {"div", 2, 0xf6, 6, W|Modrm, Reg|Mem, Acc, 0}, {"idiv", 1, 0xf6, 7, W|Modrm, Reg|Mem, 0, 0}, {"idiv", 2, 0xf6, 7, W|Modrm, Reg|Mem, Acc, 0}, {"rol", 2, 0xd0, 0, W|Modrm, Imm1, Reg|Mem, 0}, {"rol", 2, 0xc0, 0, W|Modrm, Imm8, Reg|Mem, 0}, {"rol", 2, 0xd2, 0, W|Modrm, ShiftCount, Reg|Mem, 0}, {"rol", 1, 0xd0, 0, W|Modrm, Reg|Mem, 0, 0}, {"ror", 2, 0xd0, 1, W|Modrm, Imm1, Reg|Mem, 0}, {"ror", 2, 0xc0, 1, W|Modrm, Imm8, Reg|Mem, 0}, {"ror", 2, 0xd2, 1, W|Modrm, ShiftCount, Reg|Mem, 0}, {"ror", 1, 0xd0, 1, W|Modrm, Reg|Mem, 0, 0}, {"rcl", 2, 0xd0, 2, W|Modrm, Imm1, Reg|Mem, 0}, {"rcl", 2, 0xc0, 2, W|Modrm, Imm8, Reg|Mem, 0}, {"rcl", 2, 0xd2, 2, W|Modrm, ShiftCount, Reg|Mem, 0}, {"rcl", 1, 0xd0, 2, W|Modrm, Reg|Mem, 0, 0}, {"rcr", 2, 0xd0, 3, W|Modrm, Imm1, Reg|Mem, 0}, {"rcr", 2, 0xc0, 3, W|Modrm, Imm8, Reg|Mem, 0}, {"rcr", 2, 0xd2, 3, W|Modrm, ShiftCount, Reg|Mem, 0}, {"rcr", 1, 0xd0, 3, W|Modrm, Reg|Mem, 0, 0}, {"sal", 2, 0xd0, 4, W|Modrm, Imm1, Reg|Mem, 0}, {"sal", 2, 0xc0, 4, W|Modrm, Imm8, Reg|Mem, 0}, {"sal", 2, 0xd2, 4, W|Modrm, ShiftCount, Reg|Mem, 0}, {"sal", 1, 0xd0, 4, W|Modrm, Reg|Mem, 0, 0}, {"shl", 2, 0xd0, 4, W|Modrm, Imm1, Reg|Mem, 0}, {"shl", 2, 0xc0, 4, W|Modrm, Imm8, Reg|Mem, 0}, {"shl", 2, 0xd2, 4, W|Modrm, ShiftCount, Reg|Mem, 0}, {"shl", 1, 0xd0, 4, W|Modrm, Reg|Mem, 0, 0}, {"shld", 3, 0x0fa4, _, Modrm, Imm8, WordReg, WordReg|Mem}, {"shld", 3, 0x0fa5, _, Modrm, ShiftCount, WordReg, WordReg|Mem}, {"shr", 2, 0xd0, 5, W|Modrm, Imm1, Reg|Mem, 0}, {"shr", 2, 0xc0, 5, W|Modrm, Imm8, Reg|Mem, 0}, {"shr", 2, 0xd2, 5, W|Modrm, ShiftCount, Reg|Mem, 0}, {"shr", 1, 0xd0, 5, W|Modrm, Reg|Mem, 0, 0}, {"shrd", 3, 0x0fac, _, Modrm, Imm8, WordReg, WordReg|Mem}, {"shrd", 3, 0x0fad, _, Modrm, ShiftCount, WordReg, WordReg|Mem}, {"sar", 2, 0xd0, 7, W|Modrm, Imm1, Reg|Mem, 0}, {"sar", 2, 0xc0, 7, W|Modrm, Imm8, Reg|Mem, 0}, {"sar", 2, 0xd2, 7, W|Modrm, ShiftCount, Reg|Mem, 0}, {"sar", 1, 0xd0, 7, W|Modrm, Reg|Mem, 0, 0}, /* control transfer instructions */ #define CALL_PC_RELATIVE 0xe8 {"call", 1, 0xe8, _, JumpDword, Disp32, 0, 0}, {"call", 1, 0xff, 2, Modrm, Reg|Mem|JumpAbsolute, 0, 0}, #define CALL_FAR_IMMEDIATE 0x9a {"lcall", 2, 0x9a, _, JumpInterSegment, Imm16, Abs32, 0}, {"lcall", 1, 0xff, 3, Modrm, Mem, 0, 0}, #define JUMP_PC_RELATIVE 0xeb {"jmp", 1, 0xeb, _, Jump, Disp, 0, 0}, {"jmp", 1, 0xff, 4, Modrm, Reg32|Mem|JumpAbsolute, 0, 0}, #define JUMP_FAR_IMMEDIATE 0xea {"ljmp", 2, 0xea, _, JumpInterSegment, Imm16, Imm32, 0}, {"ljmp", 1, 0xff, 5, Modrm, Mem, 0, 0}, {"ret", 0, 0xc3, _, NoModrm, 0, 0, 0}, {"ret", 1, 0xc2, _, NoModrm, Imm16, 0, 0}, {"lret", 0, 0xcb, _, NoModrm, 0, 0, 0}, {"lret", 1, 0xca, _, NoModrm, Imm16, 0, 0}, {"enter", 2, 0xc8, _, NoModrm, Imm16, Imm8, 0}, {"leave", 0, 0xc9, _, NoModrm, 0, 0, 0}, /* conditional jumps */ {"jo", 1, 0x70, _, Jump, Disp, 0, 0}, {"jno", 1, 0x71, _, Jump, Disp, 0, 0}, {"jb", 1, 0x72, _, Jump, Disp, 0, 0}, {"jc", 1, 0x72, _, Jump, Disp, 0, 0}, {"jnae", 1, 0x72, _, Jump, Disp, 0, 0}, {"jnb", 1, 0x73, _, Jump, Disp, 0, 0}, {"jnc", 1, 0x73, _, Jump, Disp, 0, 0}, {"jae", 1, 0x73, _, Jump, Disp, 0, 0}, {"je", 1, 0x74, _, Jump, Disp, 0, 0}, {"jz", 1, 0x74, _, Jump, Disp, 0, 0}, {"jne", 1, 0x75, _, Jump, Disp, 0, 0}, {"jnz", 1, 0x75, _, Jump, Disp, 0, 0}, {"jbe", 1, 0x76, _, Jump, Disp, 0, 0}, {"jna", 1, 0x76, _, Jump, Disp, 0, 0}, {"jnbe", 1, 0x77, _, Jump, Disp, 0, 0}, {"ja", 1, 0x77, _, Jump, Disp, 0, 0}, {"js", 1, 0x78, _, Jump, Disp, 0, 0}, {"jns", 1, 0x79, _, Jump, Disp, 0, 0}, {"jp", 1, 0x7a, _, Jump, Disp, 0, 0}, {"jpe", 1, 0x7a, _, Jump, Disp, 0, 0}, {"jnp", 1, 0x7b, _, Jump, Disp, 0, 0}, {"jpo", 1, 0x7b, _, Jump, Disp, 0, 0}, {"jl", 1, 0x7c, _, Jump, Disp, 0, 0}, {"jnge", 1, 0x7c, _, Jump, Disp, 0, 0}, {"jnl", 1, 0x7d, _, Jump, Disp, 0, 0}, {"jge", 1, 0x7d, _, Jump, Disp, 0, 0}, {"jle", 1, 0x7e, _, Jump, Disp, 0, 0}, {"jng", 1, 0x7e, _, Jump, Disp, 0, 0}, {"jnle", 1, 0x7f, _, Jump, Disp, 0, 0}, {"jg", 1, 0x7f, _, Jump, Disp, 0, 0}, /* these turn into pseudo operations when disp is larger than 8 bits */ #define IS_JUMP_ON_CX_ZERO(o) \ (o == 0x67e3) #define IS_JUMP_ON_ECX_ZERO(o) \ (o == 0xe3) {"jcxz", 1, 0x67e3, _, JumpByte, Disp, 0, 0}, {"jecxz", 1, 0xe3, _, JumpByte, Disp, 0, 0}, #define IS_LOOP_ECX_TIMES(o) \ (o == 0xe2 || o == 0xe1 || o == 0xe0) {"loop", 1, 0xe2, _, JumpByte, Disp, 0, 0}, {"loopz", 1, 0xe1, _, JumpByte, Disp, 0, 0}, {"loope", 1, 0xe1, _, JumpByte, Disp, 0, 0}, {"loopnz", 1, 0xe0, _, JumpByte, Disp, 0, 0}, {"loopne", 1, 0xe0, _, JumpByte, Disp, 0, 0}, /* set byte on flag instructions */ {"seto", 1, 0x0f90, 0, Modrm, Reg8|Mem, 0, 0}, {"setno", 1, 0x0f91, 0, Modrm, Reg8|Mem, 0, 0}, {"setb", 1, 0x0f92, 0, Modrm, Reg8|Mem, 0, 0}, {"setc", 1, 0x0f92, 0, Modrm, Reg8|Mem, 0, 0}, {"setnae", 1, 0x0f92, 0, Modrm, Reg8|Mem, 0, 0}, {"setnb", 1, 0x0f93, 0, Modrm, Reg8|Mem, 0, 0}, {"setnc", 1, 0x0f93, 0, Modrm, Reg8|Mem, 0, 0}, {"setae", 1, 0x0f93, 0, Modrm, Reg8|Mem, 0, 0}, {"sete", 1, 0x0f94, 0, Modrm, Reg8|Mem, 0, 0}, {"setz", 1, 0x0f94, 0, Modrm, Reg8|Mem, 0, 0}, {"setne", 1, 0x0f95, 0, Modrm, Reg8|Mem, 0, 0}, {"setnz", 1, 0x0f95, 0, Modrm, Reg8|Mem, 0, 0}, {"setbe", 1, 0x0f96, 0, Modrm, Reg8|Mem, 0, 0}, {"setna", 1, 0x0f96, 0, Modrm, Reg8|Mem, 0, 0}, {"setnbe", 1, 0x0f97, 0, Modrm, Reg8|Mem, 0, 0}, {"seta", 1, 0x0f97, 0, Modrm, Reg8|Mem, 0, 0}, {"sets", 1, 0x0f98, 0, Modrm, Reg8|Mem, 0, 0}, {"setns", 1, 0x0f99, 0, Modrm, Reg8|Mem, 0, 0}, {"setp", 1, 0x0f9a, 0, Modrm, Reg8|Mem, 0, 0}, {"setpe", 1, 0x0f9a, 0, Modrm, Reg8|Mem, 0, 0}, {"setnp", 1, 0x0f9b, 0, Modrm, Reg8|Mem, 0, 0}, {"setpo", 1, 0x0f9b, 0, Modrm, Reg8|Mem, 0, 0}, {"setl", 1, 0x0f9c, 0, Modrm, Reg8|Mem, 0, 0}, {"setnge", 1, 0x0f9c, 0, Modrm, Reg8|Mem, 0, 0}, {"setnl", 1, 0x0f9d, 0, Modrm, Reg8|Mem, 0, 0}, {"setge", 1, 0x0f9d, 0, Modrm, Reg8|Mem, 0, 0}, {"setle", 1, 0x0f9e, 0, Modrm, Reg8|Mem, 0, 0}, {"setng", 1, 0x0f9e, 0, Modrm, Reg8|Mem, 0, 0}, {"setnle", 1, 0x0f9f, 0, Modrm, Reg8|Mem, 0, 0}, {"setg", 1, 0x0f9f, 0, Modrm, Reg8|Mem, 0, 0}, #define IS_STRING_INSTRUCTION(o) \ ((o) == 0xa6 || (o) == 0x6c || (o) == 0x6e || (o) == 0x6e || \ (o) == 0xac || (o) == 0xa4 || (o) == 0xae || (o) == 0xaa || \ (o) == 0xd7) /* string manipulation */ {"cmps", 0, 0xa6, _, W|NoModrm, 0, 0, 0}, {"scmp", 0, 0xa6, _, W|NoModrm, 0, 0, 0}, {"ins", 0, 0x6c, _, W|NoModrm, 0, 0, 0}, {"outs", 0, 0x6e, _, W|NoModrm, 0, 0, 0}, {"lods", 0, 0xac, _, W|NoModrm, 0, 0, 0}, {"slod", 0, 0xac, _, W|NoModrm, 0, 0, 0}, {"movs", 0, 0xa4, _, W|NoModrm, 0, 0, 0}, {"smov", 0, 0xa4, _, W|NoModrm, 0, 0, 0}, {"scas", 0, 0xae, _, W|NoModrm, 0, 0, 0}, {"ssca", 0, 0xae, _, W|NoModrm, 0, 0, 0}, {"stos", 0, 0xaa, _, W|NoModrm, 0, 0, 0}, {"ssto", 0, 0xaa, _, W|NoModrm, 0, 0, 0}, {"xlat", 0, 0xd7, _, NoModrm, 0, 0, 0}, /* bit manipulation */ {"bsf", 2, 0x0fbc, _, Modrm|ReverseRegRegmem, Reg|Mem, Reg, 0}, {"bsr", 2, 0x0fbd, _, Modrm|ReverseRegRegmem, Reg|Mem, Reg, 0}, {"bt", 2, 0x0fa3, _, Modrm, Reg, Reg|Mem, 0}, {"bt", 2, 0x0fba, 4, Modrm, Imm8, Reg|Mem, 0}, {"btc", 2, 0x0fbb, _, Modrm, Reg, Reg|Mem, 0}, {"btc", 2, 0x0fba, 7, Modrm, Imm8, Reg|Mem, 0}, {"btr", 2, 0x0fb3, _, Modrm, Reg, Reg|Mem, 0}, {"btr", 2, 0x0fba, 6, Modrm, Imm8, Reg|Mem, 0}, {"bts", 2, 0x0fab, _, Modrm, Reg, Reg|Mem, 0}, {"bts", 2, 0x0fba, 5, Modrm, Imm8, Reg|Mem, 0}, /* interrupts & op. sys insns */ /* See i386.c for conversion of 'int $3' into the special int 3 insn. */ #define INT_OPCODE 0xcd #define INT3_OPCODE 0xcc {"int", 1, 0xcd, _, NoModrm, Imm8, 0, 0}, {"int3", 0, 0xcc, _, NoModrm, 0, 0, 0}, {"into", 0, 0xce, _, NoModrm, 0, 0, 0}, {"iret", 0, 0xcf, _, NoModrm, 0, 0, 0}, {"boundl", 2, 0x62, _, Modrm, Reg32, Mem, 0}, {"boundw", 2, 0x6662, _, Modrm, Reg16, Mem, 0}, {"hlt", 0, 0xf4, _, NoModrm, 0, 0, 0}, {"wait", 0, 0x9b, _, NoModrm, 0, 0, 0}, /* nop is actually 'xchgl %eax, %eax' */ {"nop", 0, 0x90, _, NoModrm, 0, 0, 0}, /* protection control */ {"arpl", 2, 0x63, _, Modrm, Reg16, Reg16|Mem, 0}, {"lar", 2, 0x0f02, _, Modrm|ReverseRegRegmem, WordReg|Mem, WordReg, 0}, {"lgdt", 1, 0x0f01, 2, Modrm, Mem, 0, 0}, {"lidt", 1, 0x0f01, 3, Modrm, Mem, 0, 0}, {"lldt", 1, 0x0f00, 2, Modrm, WordReg|Mem, 0, 0}, {"lmsw", 1, 0x0f01, 6, Modrm, WordReg|Mem, 0, 0}, {"lsl", 2, 0x0f03, _, Modrm|ReverseRegRegmem, WordReg|Mem, WordReg, 0}, {"ltr", 1, 0x0f00, 3, Modrm, WordReg|Mem, 0, 0}, {"sgdt", 1, 0x0f01, 0, Modrm, Mem, 0, 0}, {"sidt", 1, 0x0f01, 1, Modrm, Mem, 0, 0}, {"sldt", 1, 0x0f00, 0, Modrm, WordReg|Mem, 0, 0}, {"smsw", 1, 0x0f01, 4, Modrm, WordReg|Mem, 0, 0}, {"str", 1, 0x0f00, 1, Modrm, Reg16|Mem, 0, 0}, {"verr", 1, 0x0f00, 4, Modrm, WordReg|Mem, 0, 0}, {"verw", 1, 0x0f00, 5, Modrm, WordReg|Mem, 0, 0}, /* floating point instructions */ /* load */ {"fld", 1, 0xd9c0, _, ShortForm, FloatReg, 0, 0}, /* register */ {"flds", 1, 0xd9, 0, Modrm, Mem, 0, 0}, /* %st0 <-- mem float */ {"fldl", 1, 0xdd, 0, Modrm, Mem, 0, 0}, /* %st0 <-- mem double */ {"fldl", 1, 0xd9c0, _, ShortForm, FloatReg, 0, 0}, /* register */ {"fild", 1, 0xdf, 0, Modrm, Mem, 0, 0}, /* %st0 <-- mem word (16) */ {"fildl", 1, 0xdb, 0, Modrm, Mem, 0, 0}, /* %st0 <-- mem dword (32) */ {"fildq",1, 0xdf, 5, Modrm, Mem, 0, 0}, /* %st0 <-- mem qword (64) */ {"fildll",1, 0xdf, 5, Modrm, Mem, 0, 0}, /* %st0 <-- mem qword (64) */ {"fldt", 1, 0xdb, 5, Modrm, Mem, 0, 0}, /* %st0 <-- mem efloat */ {"fbld", 1, 0xdf, 4, Modrm, Mem, 0, 0}, /* %st0 <-- mem bcd */ /* store (no pop) */ {"fst", 1, 0xddd0, _, ShortForm, FloatReg, 0, 0}, /* register */ {"fsts", 1, 0xd9, 2, Modrm, Mem, 0, 0}, /* %st0 --> mem float */ {"fstl", 1, 0xdd, 2, Modrm, Mem, 0, 0}, /* %st0 --> mem double */ {"fstl", 1, 0xddd0, _, ShortForm, FloatReg, 0, 0}, /* register */ {"fist", 1, 0xdf, 2, Modrm, Mem, 0, 0}, /* %st0 --> mem word (16) */ {"fistl", 1, 0xdb, 2, Modrm, Mem, 0, 0}, /* %st0 --> mem dword (32) */ /* store (with pop) */ {"fstp", 1, 0xddd8, _, ShortForm, FloatReg, 0, 0}, /* register */ {"fstps", 1, 0xd9, 3, Modrm, Mem, 0, 0}, /* %st0 --> mem float */ {"fstpl", 1, 0xdd, 3, Modrm, Mem, 0, 0}, /* %st0 --> mem double */ {"fstpl", 1, 0xddd8, _, ShortForm, FloatReg, 0, 0}, /* register */ {"fistp", 1, 0xdf, 3, Modrm, Mem, 0, 0}, /* %st0 --> mem word (16) */ {"fistpl",1, 0xdb, 3, Modrm, Mem, 0, 0}, /* %st0 --> mem dword (32) */ {"fistpq",1, 0xdf, 7, Modrm, Mem, 0, 0}, /* %st0 --> mem qword (64) */ {"fistpll",1,0xdf, 7, Modrm, Mem, 0, 0}, /* %st0 --> mem qword (64) */ {"fstpt", 1, 0xdb, 7, Modrm, Mem, 0, 0}, /* %st0 --> mem efloat */ {"fbstp", 1, 0xdf, 6, Modrm, Mem, 0, 0}, /* %st0 --> mem bcd */ /* exchange %st<n> with %st0 */ {"fxch", 1, 0xd9c8, _, ShortForm, FloatReg, 0, 0}, /* comparison (without pop) */ {"fcom", 1, 0xd8d0, _, ShortForm, FloatReg, 0, 0}, {"fcoms", 1, 0xd8, 2, Modrm, Mem, 0, 0}, /* compare %st0, mem float */ {"ficoml", 1, 0xda, 2, Modrm, Mem, 0, 0}, /* compare %st0, mem word */ {"fcoml", 1, 0xdc, 2, Modrm, Mem, 0, 0}, /* compare %st0, mem double */ {"fcoml", 1, 0xd8d0, _, ShortForm, FloatReg, 0, 0}, {"ficoms", 1, 0xde, 2, Modrm, Mem, 0, 0}, /* compare %st0, mem dword */ /* comparison (with pop) */ {"fcomp", 1, 0xd8d8, _, ShortForm, FloatReg, 0, 0}, {"fcomps", 1, 0xd8, 3, Modrm, Mem, 0, 0}, /* compare %st0, mem float */ {"ficompl", 1, 0xda, 3, Modrm, Mem, 0, 0}, /* compare %st0, mem word */ {"fcompl", 1, 0xdc, 3, Modrm, Mem, 0, 0}, /* compare %st0, mem double */ {"fcompl", 1, 0xd8d8, _, ShortForm, FloatReg, 0, 0}, {"ficomps", 1, 0xde, 3, Modrm, Mem, 0, 0}, /* compare %st0, mem dword */ {"fcompp", 0, 0xded9, _, NoModrm, 0, 0, 0}, /* compare %st0, %st1 & pop 2 */ /* unordered comparison (with pop) */ {"fucom", 1, 0xdde0, _, ShortForm, FloatReg, 0, 0}, {"fucomp", 1, 0xdde8, _, ShortForm, FloatReg, 0, 0}, {"fucompp", 0, 0xdae9, _, NoModrm, 0, 0, 0}, /* ucompare %st0, %st1 & pop twice */ {"ftst", 0, 0xd9e4, _, NoModrm, 0, 0, 0}, /* test %st0 */ {"fxam", 0, 0xd9e5, _, NoModrm, 0, 0, 0}, /* examine %st0 */ /* load constants into %st0 */ {"fld1", 0, 0xd9e8, _, NoModrm, 0, 0, 0}, /* %st0 <-- 1.0 */ {"fldl2t", 0, 0xd9e9, _, NoModrm, 0, 0, 0}, /* %st0 <-- log2(10) */ {"fldl2e", 0, 0xd9ea, _, NoModrm, 0, 0, 0}, /* %st0 <-- log2(e) */ {"fldpi", 0, 0xd9eb, _, NoModrm, 0, 0, 0}, /* %st0 <-- pi */ {"fldlg2", 0, 0xd9ec, _, NoModrm, 0, 0, 0}, /* %st0 <-- log10(2) */ {"fldln2", 0, 0xd9ed, _, NoModrm, 0, 0, 0}, /* %st0 <-- ln(2) */ {"fldz", 0, 0xd9ee, _, NoModrm, 0, 0, 0}, /* %st0 <-- 0.0 */ /* arithmetic */ /* add */ {"fadd", 1, 0xd8c0, _, ShortForm, FloatReg, 0, 0}, {"fadd", 2, 0xd8c0, _, ShortForm|FloatD, FloatReg, FloatAcc, 0}, {"fadd", 0, 0xdcc1, _, NoModrm, 0, 0, 0}, /* alias for fadd %st, %st(1) */ {"faddp", 1, 0xdac0, _, ShortForm, FloatReg, 0, 0}, {"faddp", 2, 0xdac0, _, ShortForm|FloatD, FloatReg, FloatAcc, 0}, {"faddp", 0, 0xdec1, _, NoModrm, 0, 0, 0}, /* alias for faddp %st, %st(1) */ {"fadds", 1, 0xd8, 0, Modrm, Mem, 0, 0}, {"fiaddl", 1, 0xda, 0, Modrm, Mem, 0, 0}, {"faddl", 1, 0xdc, 0, Modrm, Mem, 0, 0}, {"fiadds", 1, 0xde, 0, Modrm, Mem, 0, 0}, /* sub */ /* Note: intel has decided that certain of these operations are reversed in assembler syntax. */ {"fsub", 1, 0xd8e0, _, ShortForm, FloatReg, 0, 0}, {"fsub", 2, 0xd8e0, _, ShortForm, FloatReg, FloatAcc, 0}, #ifdef NON_BROKEN_OPCODES {"fsub", 2, 0xdce8, _, ShortForm, FloatAcc, FloatReg, 0}, #else {"fsub", 2, 0xdce0, _, ShortForm, FloatAcc, FloatReg, 0}, #endif {"fsub", 0, 0xdce1, _, NoModrm, 0, 0, 0}, {"fsubp", 1, 0xdae0, _, ShortForm, FloatReg, 0, 0}, {"fsubp", 2, 0xdae0, _, ShortForm, FloatReg, FloatAcc, 0}, #ifdef NON_BROKEN_OPCODES {"fsubp", 2, 0xdee8, _, ShortForm, FloatAcc, FloatReg, 0}, #else {"fsubp", 2, 0xdee0, _, ShortForm, FloatAcc, FloatReg, 0}, #endif {"fsubp", 0, 0xdee1, _, NoModrm, 0, 0, 0}, {"fsubs", 1, 0xd8, 4, Modrm, Mem, 0, 0}, {"fisubl", 1, 0xda, 4, Modrm, Mem, 0, 0}, {"fsubl", 1, 0xdc, 4, Modrm, Mem, 0, 0}, {"fisubs", 1, 0xde, 4, Modrm, Mem, 0, 0}, /* sub reverse */ {"fsubr", 1, 0xd8e8, _, ShortForm, FloatReg, 0, 0}, {"fsubr", 2, 0xd8e8, _, ShortForm, FloatReg, FloatAcc, 0}, #ifdef NON_BROKEN_OPCODES {"fsubr", 2, 0xdce0, _, ShortForm, FloatAcc, FloatReg, 0}, #else {"fsubr", 2, 0xdce8, _, ShortForm, FloatAcc, FloatReg, 0}, #endif {"fsubr", 0, 0xdce9, _, NoModrm, 0, 0, 0}, {"fsubrp", 1, 0xdae8, _, ShortForm, FloatReg, 0, 0}, {"fsubrp", 2, 0xdae8, _, ShortForm, FloatReg, FloatAcc, 0}, #ifdef NON_BROKEN_OPCODES {"fsubrp", 2, 0xdee0, _, ShortForm, FloatAcc, FloatReg, 0}, #else {"fsubrp", 2, 0xdee8, _, ShortForm, FloatAcc, FloatReg, 0}, #endif {"fsubrp", 0, 0xdee9, _, NoModrm, 0, 0, 0}, {"fsubrs", 1, 0xd8, 5, Modrm, Mem, 0, 0}, {"fisubrl", 1, 0xda, 5, Modrm, Mem, 0, 0}, {"fsubrl", 1, 0xdc, 5, Modrm, Mem, 0, 0}, {"fisubrs", 1, 0xde, 5, Modrm, Mem, 0, 0}, /* mul */ {"fmul", 1, 0xd8c8, _, ShortForm, FloatReg, 0, 0}, {"fmul", 2, 0xd8c8, _, ShortForm|FloatD, FloatReg, FloatAcc, 0}, {"fmul", 0, 0xdcc9, _, NoModrm, 0, 0, 0}, {"fmulp", 1, 0xdac8, _, ShortForm, FloatReg, 0, 0}, {"fmulp", 2, 0xdac8, _, ShortForm|FloatD, FloatReg, FloatAcc, 0}, {"fmulp", 0, 0xdec9, _, NoModrm, 0, 0, 0}, {"fmuls", 1, 0xd8, 1, Modrm, Mem, 0, 0}, {"fimull", 1, 0xda, 1, Modrm, Mem, 0, 0}, {"fmull", 1, 0xdc, 1, Modrm, Mem, 0, 0}, {"fimuls", 1, 0xde, 1, Modrm, Mem, 0, 0}, /* div */ /* Note: intel has decided that certain of these operations are reversed in assembler syntax. */ {"fdiv", 1, 0xd8f0, _, ShortForm, FloatReg, 0, 0}, {"fdiv", 2, 0xd8f0, _, ShortForm, FloatReg, FloatAcc, 0}, #ifdef NON_BROKEN_OPCODES {"fdiv", 2, 0xdcf8, _, ShortForm, FloatAcc, FloatReg, 0}, #else {"fdiv", 2, 0xdcf0, _, ShortForm, FloatAcc, FloatReg, 0}, #endif {"fdiv", 0, 0xdcf1, _, NoModrm, 0, 0, 0}, {"fdivp", 1, 0xdaf0, _, ShortForm, FloatReg, 0, 0}, {"fdivp", 2, 0xdaf0, _, ShortForm, FloatReg, FloatAcc, 0}, #ifdef NON_BROKEN_OPCODES {"fdivp", 2, 0xdef8, _, ShortForm, FloatAcc, FloatReg, 0}, #else {"fdivp", 2, 0xdef0, _, ShortForm, FloatAcc, FloatReg, 0}, #endif {"fdivp", 0, 0xdef1, _, NoModrm, 0, 0, 0}, {"fdivs", 1, 0xd8, 6, Modrm, Mem, 0, 0}, {"fidivl", 1, 0xda, 6, Modrm, Mem, 0, 0}, {"fdivl", 1, 0xdc, 6, Modrm, Mem, 0, 0}, {"fidivs", 1, 0xde, 6, Modrm, Mem, 0, 0}, /* div reverse */ {"fdivr", 1, 0xd8f8, _, ShortForm, FloatReg, 0, 0}, {"fdivr", 2, 0xd8f8, _, ShortForm, FloatReg, FloatAcc, 0}, #ifdef NON_BROKEN_OPCODES {"fdivr", 2, 0xdcf0, _, ShortForm, FloatAcc, FloatReg, 0}, #else {"fdivr", 2, 0xdcf8, _, ShortForm, FloatAcc, FloatReg, 0}, #endif {"fdivr", 0, 0xdcf9, _, NoModrm, 0, 0, 0}, {"fdivrp", 1, 0xdaf8, _, ShortForm, FloatReg, 0, 0}, {"fdivrp", 2, 0xdaf8, _, ShortForm, FloatReg, FloatAcc, 0}, #ifdef NON_BROKEN_OPCODES {"fdivrp", 2, 0xdef0, _, ShortForm, FloatAcc, FloatReg, 0}, #else {"fdivrp", 2, 0xdef8, _, ShortForm, FloatAcc, FloatReg, 0}, #endif {"fdivrp", 0, 0xdef9, _, NoModrm, 0, 0, 0}, {"fdivrs", 1, 0xd8, 7, Modrm, Mem, 0, 0}, {"fidivrl", 1, 0xda, 7, Modrm, Mem, 0, 0}, {"fdivrl", 1, 0xdc, 7, Modrm, Mem, 0, 0}, {"fidivrs", 1, 0xde, 7, Modrm, Mem, 0, 0}, {"f2xm1", 0, 0xd9f0, _, NoModrm, 0, 0, 0}, {"fyl2x", 0, 0xd9f1, _, NoModrm, 0, 0, 0}, {"fptan", 0, 0xd9f2, _, NoModrm, 0, 0, 0}, {"fpatan", 0, 0xd9f3, _, NoModrm, 0, 0, 0}, {"fxtract", 0, 0xd9f4, _, NoModrm, 0, 0, 0}, {"fprem1", 0, 0xd9f5, _, NoModrm, 0, 0, 0}, {"fdecstp", 0, 0xd9f6, _, NoModrm, 0, 0, 0}, {"fincstp", 0, 0xd9f7, _, NoModrm, 0, 0, 0}, {"fprem", 0, 0xd9f8, _, NoModrm, 0, 0, 0}, {"fyl2xp1", 0, 0xd9f9, _, NoModrm, 0, 0, 0}, {"fsqrt", 0, 0xd9fa, _, NoModrm, 0, 0, 0}, {"fsincos", 0, 0xd9fb, _, NoModrm, 0, 0, 0}, {"frndint", 0, 0xd9fc, _, NoModrm, 0, 0, 0}, {"fscale", 0, 0xd9fd, _, NoModrm, 0, 0, 0}, {"fsin", 0, 0xd9fe, _, NoModrm, 0, 0, 0}, {"fcos", 0, 0xd9ff, _, NoModrm, 0, 0, 0}, {"fchs", 0, 0xd9e0, _, NoModrm, 0, 0, 0}, {"fabs", 0, 0xd9e1, _, NoModrm, 0, 0, 0}, /* processor control */ {"fninit", 0, 0xdbe3, _, NoModrm, 0, 0, 0}, {"finit", 0, 0xdbe3, _, NoModrm, 0, 0, 0}, {"fldcw", 1, 0xd9, 5, Modrm, Mem, 0, 0}, {"fnstcw", 1, 0xd9, 7, Modrm, Mem, 0, 0}, {"fstcw", 1, 0xd9, 7, Modrm, Mem, 0, 0}, {"fnstsw", 1, 0xdfe0, _, NoModrm, Acc, 0, 0}, {"fnstsw", 1, 0xdd, 7, Modrm, Mem, 0, 0}, {"fnstsw", 0, 0xdfe0, _, NoModrm, 0, 0, 0}, {"fstsw", 1, 0xdfe0, _, NoModrm, Acc, 0, 0}, {"fstsw", 1, 0xdd, 7, Modrm, Mem, 0, 0}, {"fstsw", 0, 0xdfe0, _, NoModrm, 0, 0, 0}, {"fnclex", 0, 0xdbe2, _, NoModrm, 0, 0, 0}, {"fclex", 0, 0xdbe2, _, NoModrm, 0, 0, 0}, /* We ignore the short format (287) versions of fstenv/fldenv & fsave/frstor instructions; i'm not sure how to add them or how they are different. My 386/387 book offers no details about this. */ {"fnstenv", 1, 0xd9, 6, Modrm, Mem, 0, 0}, {"fstenv", 1, 0xd9, 6, Modrm, Mem, 0, 0}, {"fldenv", 1, 0xd9, 4, Modrm, Mem, 0, 0}, {"fnsave", 1, 0xdd, 6, Modrm, Mem, 0, 0}, {"fsave", 1, 0xdd, 6, Modrm, Mem, 0, 0}, {"frstor", 1, 0xdd, 4, Modrm, Mem, 0, 0}, {"ffree", 1, 0xddc0, _, ShortForm, FloatReg, 0, 0}, {"fnop", 0, 0xd9d0, _, NoModrm, 0, 0, 0}, {"fwait", 0, 0x9b, _, NoModrm, 0, 0, 0}, /* opcode prefixes; we allow them as seperate insns too (see prefix table below) */ {"aword", 0, 0x67, _, NoModrm, 0, 0, 0}, {"addr16", 0, 0x67, _, NoModrm, 0, 0, 0}, {"word", 0, 0x66, _, NoModrm, 0, 0, 0}, {"data16", 0, 0x66, _, NoModrm, 0, 0, 0}, {"lock", 0, 0xf0, _, NoModrm, 0, 0, 0}, {"cs", 0, 0x2e, _, NoModrm, 0, 0, 0}, {"ds", 0, 0x3e, _, NoModrm, 0, 0, 0}, {"es", 0, 0x26, _, NoModrm, 0, 0, 0}, {"fs", 0, 0x64, _, NoModrm, 0, 0, 0}, {"gs", 0, 0x65, _, NoModrm, 0, 0, 0}, {"ss", 0, 0x36, _, NoModrm, 0, 0, 0}, {"rep", 0, 0xf3, _, NoModrm, 0, 0, 0}, {"repe", 0, 0xf3, _, NoModrm, 0, 0, 0}, {"repz", 0, 0xf3, _, NoModrm, 0, 0, 0}, {"repne", 0, 0xf2, _, NoModrm, 0, 0, 0}, {"repnz", 0, 0xf2, _, NoModrm, 0, 0, 0}, {"", 0, 0, 0, 0, 0, 0, 0} /* sentinal */ }; #undef _ static const template *i386_optab_end = i386_optab + sizeof (i386_optab)/sizeof(i386_optab[0]); /* 386 register table */ static const reg_entry i386_regtab[] = { /* 8 bit regs */ {"al", Reg8|Acc, 0}, {"cl", Reg8|ShiftCount, 1}, {"dl", Reg8, 2}, {"bl", Reg8, 3}, {"ah", Reg8, 4}, {"ch", Reg8, 5}, {"dh", Reg8, 6}, {"bh", Reg8, 7}, /* 16 bit regs */ {"ax", Reg16|Acc, 0}, {"cx", Reg16, 1}, {"dx", Reg16|InOutPortReg, 2}, {"bx", Reg16, 3}, {"sp", Reg16, 4}, {"bp", Reg16, 5}, {"si", Reg16, 6}, {"di", Reg16, 7}, /* 32 bit regs */ {"eax", Reg32|Acc, 0}, {"ecx", Reg32, 1}, {"edx", Reg32, 2}, {"ebx", Reg32, 3}, {"esp", Reg32, 4}, {"ebp", Reg32, 5}, {"esi", Reg32, 6}, {"edi", Reg32, 7}, /* segment registers */ {"es", SReg2, 0}, {"cs", SReg2, 1}, {"ss", SReg2, 2}, {"ds", SReg2, 3}, {"fs", SReg3, 4}, {"gs", SReg3, 5}, /* control registers */ {"cr0", Control, 0}, {"cr2", Control, 2}, {"cr3", Control, 3}, /* debug registers */ {"db0", Debug, 0}, {"db1", Debug, 1}, {"db2", Debug, 2}, {"db3", Debug, 3}, {"db6", Debug, 6}, {"db7", Debug, 7}, /* test registers */ {"tr6", Test, 6}, {"tr7", Test, 7}, /* float registers */ {"st(0)", FloatReg|FloatAcc, 0}, {"st", FloatReg|FloatAcc, 0}, {"st(1)", FloatReg, 1}, {"st(2)", FloatReg, 2}, {"st(3)", FloatReg, 3}, {"st(4)", FloatReg, 4}, {"st(5)", FloatReg, 5}, {"st(6)", FloatReg, 6}, {"st(7)", FloatReg, 7} }; #define MAX_REG_NAME_SIZE 8 /* for parsing register names from input */ static const reg_entry *i386_regtab_end = i386_regtab + sizeof(i386_regtab)/sizeof(i386_regtab[0]); /* segment stuff */ static const seg_entry cs = { "cs", 0x2e }; static const seg_entry ds = { "ds", 0x3e }; static const seg_entry ss = { "ss", 0x36 }; static const seg_entry es = { "es", 0x26 }; static const seg_entry fs = { "fs", 0x64 }; static const seg_entry gs = { "gs", 0x65 }; static const seg_entry null = { "", 0x0 }; /* This table is used to store the default segment register implied by all possible memory addressing modes. It is indexed by the mode & modrm entries of the modrm byte as follows: index = (mode<<3) | modrm; */ static const seg_entry *one_byte_segment_defaults[] = { /* mode 0 */ &ds, &ds, &ds, &ds, &null, &ds, &ds, &ds, /* mode 1 */ &ds, &ds, &ds, &ds, &null, &ss, &ds, &ds, /* mode 2 */ &ds, &ds, &ds, &ds, &null, &ss, &ds, &ds, /* mode 3 --- not a memory reference; never referenced */ }; static const seg_entry *two_byte_segment_defaults[] = { /* mode 0 */ &ds, &ds, &ds, &ds, &ss, &ds, &ds, &ds, /* mode 1 */ &ds, &ds, &ds, &ds, &ss, &ds, &ds, &ds, /* mode 2 */ &ds, &ds, &ds, &ds, &ss, &ds, &ds, &ds, /* mode 3 --- not a memory reference; never referenced */ }; static const prefix_entry i386_prefixtab[] = { { "addr16", 0x67 }, /* address size prefix ==> 16bit addressing * (How is this useful?) */ #define WORD_PREFIX_OPCODE 0x66 { "data16", 0x66 }, /* operand size prefix */ { "lock", 0xf0 }, /* bus lock prefix */ { "wait", 0x9b }, /* wait for coprocessor */ { "cs", 0x2e }, { "ds", 0x3e }, /* segment overrides ... */ { "es", 0x26 }, { "fs", 0x64 }, { "gs", 0x65 }, { "ss", 0x36 }, /* REPE & REPNE used to detect rep/repne with a non-string instruction */ #define REPNE 0xf2 #define REPE 0xf3 { "rep", 0xf3 }, /* repeat string instructions */ { "repe", 0xf3 }, { "repz", 0xf3 }, { "repne", 0xf2 }, { "repnz", 0xf2 } }; static const prefix_entry *i386_prefixtab_end = i386_prefixtab + sizeof(i386_prefixtab)/sizeof(i386_prefixtab[0]); /* end of i386-opcode.h */