opcodes/i386-opc.tbl - third_party/gdb - Git at Google

 // i386 opcode table.
 // Copyright (C) 2007-2016 Free Software Foundation, Inc.
 //
 // This file is part of the GNU opcodes library.
 //
 // This library 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 3, or (at your option)
 // any later version.
 //
 // It 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 GAS; see the file COPYING.  If not, write to the Free
 // Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
 // 02110-1301, USA.

 // Move instructions.
 // We put the 64bit displacement first and we only mark constants
 // larger than 32bit as Disp64.
 mov, 2, 0xa0, None, 1, Cpu64, D|W|CheckRegSize|No_sSuf|No_ldSuf, { Disp64|Unspecified|Byte|Word|Dword|Qword, Acc|Byte|Word|Dword|Qword }
 mov, 2, 0xa0, None, 1, CpuNo64, D|W|CheckRegSize|No_sSuf|No_qSuf|No_ldSuf, { Disp16|Disp32|Unspecified|Byte|Word|Dword, Acc|Byte|Word|Dword }
 mov, 2, 0x88, None, 1, 0, D|W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|HLEPrefixOk=3, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 // In the 64bit mode the short form mov immediate is redefined to have
 // 64bit value.
 mov, 2, 0xb0, None, 1, 0, W|CheckRegSize|ShortForm|No_sSuf|No_qSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Reg8|Reg16|Reg32 }
 mov, 2, 0xc6, 0x0, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|HLEPrefixOk=3, { Imm8|Imm16|Imm32|Imm32S, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 mov, 2, 0xb0, None, 1, Cpu64, W|ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf, { Imm64, Reg64 }
 // The segment register moves accept WordReg so that a segment register
 // can be copied to a 32 bit register, and vice versa, without using a
 // size prefix.  When moving to a 32 bit register, the upper 16 bits
 // are set to an implementation defined value (on the Pentium Pro, the
 // implementation defined value is zero).
 mov, 2, 0x8c, None, 1, 0, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { SReg2, Reg16|Reg32|Reg64|RegMem }
 mov, 2, 0x8c, None, 1, 0, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { SReg2, Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 mov, 2, 0x8c, None, 1, Cpu386, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { SReg3, Reg16|Reg32|Reg64|RegMem }
 mov, 2, 0x8c, None, 1, Cpu386, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { SReg3, Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 mov, 2, 0x8e, None, 1, 0, Modrm|IgnoreSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Reg32|Reg64, SReg2 }
 mov, 2, 0x8e, None, 1, 0, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, SReg2 }
 mov, 2, 0x8e, None, 1, Cpu386, Modrm|IgnoreSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Reg32|Reg64, SReg3 }
 mov, 2, 0x8e, None, 1, Cpu386, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, SReg3 }
 // Move to/from control debug registers.  In the 16 or 32bit modes
 // they are 32bit.  In the 64bit mode they are 64bit.
 mov, 2, 0xf20, None, 2, Cpu386|CpuNo64, D|Modrm|IgnoreSize|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf, { Control, Reg32|RegMem }
 mov, 2, 0xf20, None, 2, Cpu64, D|Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Control, Reg64|RegMem }
 mov, 2, 0xf21, None, 2, Cpu386|CpuNo64, D|Modrm|IgnoreSize|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf, { Debug, Reg32|RegMem }
 mov, 2, 0xf21, None, 2, Cpu64, D|Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Debug, Reg64|RegMem }
 mov, 2, 0xf24, None, 2, Cpu386|CpuNo64, D|Modrm|IgnoreSize|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf, { Test, Reg32|RegMem }
 movabs, 2, 0xa0, None, 1, Cpu64, D|W|CheckRegSize|No_sSuf|No_ldSuf, { Disp64|Unspecified|Byte|Word|Dword|Qword, Acc|Byte|Word|Dword|Qword }
 movabs, 2, 0xb0, None, 1, Cpu64, W|ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf, { Imm64, Reg64 }

 // Move after swapping the bytes
 movbe, 2, 0x0f38f0, None, 3, CpuMovbe, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 movbe, 2, 0x0f38f1, None, 3, CpuMovbe, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64, Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // Move with sign extend.
 // "movsbl" & "movsbw" must not be unified into "movsb" to avoid
 // conflict with the "movs" string move instruction.
 movsbl, 2, 0xfbe, None, 2, Cpu386, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg32 }
 movsbw, 2, 0xfbe, None, 2, Cpu386, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16 }
 movswl, 2, 0xfbf, None, 2, Cpu386, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg32 }
 movsbq, 2, 0xfbe, None, 2, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Rex64, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp32|Disp32S, Reg64 }
 movswq, 2, 0xfbf, None, 2, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Rex64, { Reg16|Word|Unspecified|BaseIndex|Disp8|Disp32|Disp32S, Reg64 }
 movslq, 2, 0x63, None, 1, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Rex64, { Reg32|Dword|Unspecified|BaseIndex|Disp8|Disp32|Disp32S, Reg64 }
 // Intel Syntax next 3 insns
 movsx, 2, 0xfbe, None, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTSyntax, { Reg8|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 movsx, 2, 0xfbf, None, 2, Cpu386, Modrm|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTSyntax, { Reg16|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg32|Reg64 }
 movsx, 2, 0x63, None, 1, Cpu64, Modrm|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf|Rex64|ATTSyntax, { Reg32|Unspecified|BaseIndex|Disp8|Disp32|Disp32S, Reg64 }
 movsx, 2, 0xfbe, None, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IntelSyntax, { Reg8|Byte|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 movsx, 2, 0xfbf, None, 2, Cpu386, Modrm|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IntelSyntax, { Reg16|Word|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg32|Reg64 }
 movsx, 2, 0x63, None, 1, Cpu64, Modrm|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf|Rex64|IntelSyntax, { Reg32|Dword|BaseIndex|Disp8|Disp32|Disp32S, Reg64 }
 movsxd, 2, 0x63, None, 1, Cpu64, Modrm|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf|Rex64, { Reg32|Dword|Unspecified|BaseIndex|Disp8|Disp32|Disp32S, Reg64 }

 // Move with zero extend.
 movzb, 2, 0xfb6, None, 2, Cpu386, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 movzw, 2, 0xfb7, None, 2, Cpu386, Modrm|No_bSuf|No_wSuf|No_sSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg32|Reg64 }
 // Intel Syntax next 2 insns (the 64-bit variants are not particulary
 // useful since the zero extend 32->64 is implicit, but we can encode them).
 movzx, 2, 0xfb6, None, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTSyntax, { Reg8|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 movzx, 2, 0xfb7, None, 2, Cpu386, Modrm|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTSyntax, { Reg16|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg32|Reg64 }
 movzx, 2, 0xfb6, None, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IntelSyntax, { Reg8|Byte|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 movzx, 2, 0xfb7, None, 2, Cpu386, Modrm|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IntelSyntax, { Reg16|Word|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg32|Reg64 }

 // Push instructions.
 push, 1, 0x50, None, 1, CpuNo64, ShortForm|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Reg32 }
 push, 1, 0xff, 0x6, 1, CpuNo64, Modrm|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Reg32|Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32 }
 push, 1, 0x6a, None, 1, Cpu186|CpuNo64, DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Imm8S }
 push, 1, 0x68, None, 1, Cpu186|CpuNo64, DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Imm16|Imm32 }
 push, 1, 0x6, None, 1, CpuNo64, ShortForm|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { SReg2 }
 push, 1, 0xfa0, None, 2, Cpu386|CpuNo64, ShortForm|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { SReg3 }
 // In 64bit mode, the operand size is implicitly 64bit.
 push, 1, 0x50, None, 1, Cpu64, ShortForm|DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Reg16|Reg64 }
 push, 1, 0xff, 0x6, 1, Cpu64, Modrm|DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Reg16|Reg64|Word|Qword|Unspecified|BaseIndex|Disp8|Disp32|Disp32S }
 push, 1, 0x6a, None, 1, Cpu64, DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Imm8S }
 push, 1, 0x68, None, 1, Cpu64, DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Imm16|Imm32S }
 push, 1, 0xfa0, None, 2, Cpu64, ShortForm|DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { SReg3 }

 pusha, 0, 0x60, None, 1, Cpu186|CpuNo64, DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 // Pop instructions.
 pop, 1, 0x58, None, 1, CpuNo64, ShortForm|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Reg32 }
 pop, 1, 0x8f, 0x0, 1, CpuNo64, Modrm|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Reg32|Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32 }
 pop, 1, 0x7, None, 1, CpuNo64, ShortForm|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { SReg2 }
 pop, 1, 0xfa1, None, 2, Cpu386|CpuNo64, ShortForm|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { SReg3 }
 // In 64bit mode, the operand size is implicitly 64bit.
 pop, 1, 0x58, None, 1, Cpu64, ShortForm|DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Reg16|Reg64 }
 pop, 1, 0x8f, 0x0, 1, Cpu64, Modrm|DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Reg16|Reg64|Word|Qword|Unspecified|BaseIndex|Disp8|Disp32|Disp32S }
 pop, 1, 0xfa1, None, 2, Cpu64, ShortForm|DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { SReg3 }

 popa, 0, 0x61, None, 1, Cpu186|CpuNo64, DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 // Exchange instructions.
 // xchg commutes:  we allow both operand orders.

 // In the 64bit code, xchg rax, rax is reused for new nop instruction.
 xchg, 2, 0x90, None, 1, 0, ShortForm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64, Acc|Word|Dword|Qword }
 xchg, 2, 0x90, None, 1, 0, ShortForm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Acc|Word|Dword|Qword, Reg16|Reg32|Reg64 }
 xchg, 2, 0x86, None, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk=2, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 xchg, 2, 0x86, None, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk=2, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg8|Reg16|Reg32|Reg64 }

 // In/out from ports.
 in, 2, 0xe4, None, 1, 0, W|CheckRegSize|No_sSuf|No_qSuf|No_ldSuf, { Imm8, Acc|Byte|Word|Dword }
 in, 2, 0xec, None, 1, 0, W|CheckRegSize|No_sSuf|No_qSuf|No_ldSuf, { InOutPortReg, Acc|Byte|Word|Dword }
 in, 1, 0xe4, None, 1, 0, W|No_sSuf|No_qSuf|No_ldSuf, { Imm8 }
 in, 1, 0xec, None, 1, 0, W|No_sSuf|No_qSuf|No_ldSuf, { InOutPortReg }
 out, 2, 0xe6, None, 1, 0, W|CheckRegSize|No_sSuf|No_qSuf|No_ldSuf, { Acc|Byte|Word|Dword, Imm8 }
 out, 2, 0xee, None, 1, 0, W|CheckRegSize|No_sSuf|No_qSuf|No_ldSuf, { Acc|Byte|Word|Dword, InOutPortReg }
 out, 1, 0xe6, None, 1, 0, W|No_sSuf|No_qSuf|No_ldSuf, { Imm8 }
 out, 1, 0xee, None, 1, 0, W|No_sSuf|No_qSuf|No_ldSuf, { InOutPortReg }

 // Load effective address.
 lea, 2, 0x8d, None, 1, 0, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Anysize|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }

 // Load segment registers from memory.
 lds, 2, 0xc5, None, 1, CpuNo64, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { DWord|Fword|Unspecified|BaseIndex|Disp8|Disp16|Disp32, Reg16|Reg32 }
 les, 2, 0xc4, None, 1, CpuNo64, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { DWord|Fword|Unspecified|BaseIndex|Disp8|Disp16|Disp32, Reg16|Reg32 }
 lfs, 2, 0xfb4, None, 2, Cpu386, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { DWord|Fword|Tbyte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 lgs, 2, 0xfb5, None, 2, Cpu386, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { DWord|Fword|Tbyte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 lss, 2, 0xfb2, None, 2, Cpu386, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { DWord|Fword|Tbyte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }

 // Flags register instructions.
 clc, 0, 0xf8, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cld, 0, 0xfc, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cli, 0, 0xfa, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 clts, 0, 0xf06, None, 2, Cpu286, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cmc, 0, 0xf5, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 lahf, 0, 0x9f, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 sahf, 0, 0x9e, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 pushf, 0, 0x9c, None, 1, CpuNo64, DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 pushf, 0, 0x9c, None, 1, Cpu64, DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { 0 }
 popf, 0, 0x9d, None, 1, CpuNo64, DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 popf, 0, 0x9d, None, 1, Cpu64, DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { 0 }
 stc, 0, 0xf9, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 std, 0, 0xfd, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 sti, 0, 0xfb, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 // Arithmetic.
 add, 2, 0x0, None, 1, 0, D|W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 add, 2, 0x83, 0x0, 1, 0, Modrm|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8S, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 add, 2, 0x4, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Acc|Byte|Word|Dword|Qword }
 add, 2, 0x80, 0x0, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8|Imm16|Imm32|Imm32S, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 inc, 1, 0x40, None, 1, CpuNo64, ShortForm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Reg32 }
 inc, 1, 0xfe, 0x0, 1, 0, W|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 sub, 2, 0x28, None, 1, 0, D|W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sub, 2, 0x83, 0x5, 1, 0, Modrm|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8S, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sub, 2, 0x2c, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Acc|Byte|Word|Dword|Qword }
 sub, 2, 0x80, 0x5, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8|Imm16|Imm32|Imm32S, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 dec, 1, 0x48, None, 1, CpuNo64, ShortForm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Reg32 }
 dec, 1, 0xfe, 0x1, 1, 0, W|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 sbb, 2, 0x18, None, 1, 0, D|W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sbb, 2, 0x83, 0x3, 1, 0, Modrm|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8S, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sbb, 2, 0x1c, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Acc|Byte|Word|Dword|Qword }
 sbb, 2, 0x80, 0x3, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8|Imm16|Imm32|Imm32S, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 cmp, 2, 0x38, None, 1, 0, D|W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 cmp, 2, 0x83, 0x7, 1, 0, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Imm8S, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 cmp, 2, 0x3c, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Acc|Byte|Word|Dword|Qword }
 cmp, 2, 0x80, 0x7, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 test, 2, 0x84, None, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Unspecified|Byte|Word|Dword|Qword|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 test, 2, 0x84, None, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg8|Reg16|Reg32|Reg64 }
 test, 2, 0xa8, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Acc|Byte|Word|Dword|Qword }
 test, 2, 0xf6, 0x0, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 and, 2, 0x20, None, 1, 0, D|W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 and, 2, 0x83, 0x4, 1, 0, Modrm|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8S, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 and, 2, 0x24, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Acc|Byte|Word|Dword|Qword }
 and, 2, 0x80, 0x4, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8|Imm16|Imm32|Imm32S, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 or, 2, 0x8, None, 1, 0, D|W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 or, 2, 0x83, 0x1, 1, 0, Modrm|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8S, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 or, 2, 0xc, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Acc|Byte|Word|Dword|Qword }
 or, 2, 0x80, 0x1, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8|Imm16|Imm32|Imm32S, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 xor, 2, 0x30, None, 1, 0, D|W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 xor, 2, 0x83, 0x6, 1, 0, Modrm|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8S, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 xor, 2, 0x34, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Acc|Byte|Word|Dword|Qword }
 xor, 2, 0x80, 0x6, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8|Imm16|Imm32|Imm32S, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // clr with 1 operand is really xor with 2 operands.
 clr, 1, 0x30, None, 1, 0, W|Modrm|No_sSuf|No_ldSuf|RegKludge, { Reg8|Reg16|Reg32|Reg64 }

 adc, 2, 0x10, None, 1, 0, D|W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 adc, 2, 0x83, 0x2, 1, 0, Modrm|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8S, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 adc, 2, 0x14, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf, { Imm8|Imm16|Imm32|Imm32S, Acc|Byte|Word|Dword|Qword }
 adc, 2, 0x80, 0x2, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8|Imm16|Imm32|Imm32S, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 neg, 1, 0xf6, 0x3, 1, 0, W|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 not, 1, 0xf6, 0x2, 1, 0, W|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 aaa, 0, 0x37, None, 1, CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 aas, 0, 0x3f, None, 1, CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 daa, 0, 0x27, None, 1, CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 das, 0, 0x2f, None, 1, CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 aad, 0, 0xd50a, None, 2, CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 aad, 1, 0xd5, None, 1, CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Imm8 }
 aam, 0, 0xd40a, None, 2, CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 aam, 1, 0xd4, None, 1, CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Imm8 }

 // Conversion insns.
 // Intel naming
 cbw, 0, 0x98, None, 1, 0, Size16|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cdqe, 0, 0x98, None, 1, Cpu64, Size64|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cwde, 0, 0x98, None, 1, 0, Size32|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cwd, 0, 0x99, None, 1, 0, Size16|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cdq, 0, 0x99, None, 1, 0, Size32|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cqo, 0, 0x99, None, 1, Cpu64, Size64|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 // AT&T naming
 cbtw, 0, 0x98, None, 1, 0, Size16|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cltq, 0, 0x98, None, 1, Cpu64, Size64|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cwtl, 0, 0x98, None, 1, 0, Size32|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cwtd, 0, 0x99, None, 1, 0, Size16|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cltd, 0, 0x99, None, 1, 0, Size32|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cqto, 0, 0x99, None, 1, Cpu64, Size64|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 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 operand forms.
 mul, 1, 0xf6, 0x4, 1, 0, W|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 imul, 1, 0xf6, 0x5, 1, 0, W|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 imul, 2, 0xfaf, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Unspecified|Word|Dword|Qword|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 imul, 3, 0x6b, None, 1, Cpu186, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Imm8S, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 imul, 3, 0x69, None, 1, Cpu186, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Imm16|Imm32|Imm32S, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 // imul with 2 operands mimics imul with 3 by putting the register in
 // both i.rm.reg & i.rm.regmem fields.  RegKludge enables this
 // transformation.
 imul, 2, 0x6b, None, 1, Cpu186, Modrm|No_bSuf|No_sSuf|No_ldSuf|RegKludge, { Imm8S, Reg16|Reg32|Reg64 }
 imul, 2, 0x69, None, 1, Cpu186, Modrm|No_bSuf|No_sSuf|No_ldSuf|RegKludge, { Imm16|Imm32|Imm32S, Reg16|Reg32|Reg64 }

 div, 1, 0xf6, 0x6, 1, 0, W|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 div, 2, 0xf6, 0x6, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Acc|Byte|Word|Dword|Qword }
 idiv, 1, 0xf6, 0x7, 1, 0, W|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 idiv, 2, 0xf6, 0x7, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Acc|Byte|Word|Dword|Qword }

 rol, 2, 0xd0, 0x0, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm1, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 rol, 2, 0xc0, 0x0, 1, Cpu186, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm8, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 rol, 2, 0xd2, 0x0, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { ShiftCount, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 rol, 1, 0xd0, 0x0, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 ror, 2, 0xd0, 0x1, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm1, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 ror, 2, 0xc0, 0x1, 1, Cpu186, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm8, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 ror, 2, 0xd2, 0x1, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { ShiftCount, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 ror, 1, 0xd0, 0x1, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 rcl, 2, 0xd0, 0x2, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm1, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 rcl, 2, 0xc0, 0x2, 1, Cpu186, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm8, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 rcl, 2, 0xd2, 0x2, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { ShiftCount, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 rcl, 1, 0xd0, 0x2, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 rcr, 2, 0xd0, 0x3, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm1, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 rcr, 2, 0xc0, 0x3, 1, Cpu186, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm8, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 rcr, 2, 0xd2, 0x3, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { ShiftCount, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 rcr, 1, 0xd0, 0x3, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 sal, 2, 0xd0, 0x4, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm1, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sal, 2, 0xc0, 0x4, 1, Cpu186, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm8, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sal, 2, 0xd2, 0x4, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { ShiftCount, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sal, 1, 0xd0, 0x4, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 shl, 2, 0xd0, 0x4, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm1, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 shl, 2, 0xc0, 0x4, 1, Cpu186, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm8, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 shl, 2, 0xd2, 0x4, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { ShiftCount, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 shl, 1, 0xd0, 0x4, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 shr, 2, 0xd0, 0x5, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm1, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 shr, 2, 0xc0, 0x5, 1, Cpu186, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm8, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 shr, 2, 0xd2, 0x5, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { ShiftCount, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 shr, 1, 0xd0, 0x5, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 sar, 2, 0xd0, 0x7, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm1, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sar, 2, 0xc0, 0x7, 1, Cpu186, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Imm8, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sar, 2, 0xd2, 0x7, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { ShiftCount, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sar, 1, 0xd0, 0x7, 1, 0, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf, { Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 shld, 3, 0xfa4, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Imm8, Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 shld, 3, 0xfa5, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { ShiftCount, Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 shld, 2, 0xfa5, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 shrd, 3, 0xfac, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Imm8, Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 shrd, 3, 0xfad, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { ShiftCount, Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 shrd, 2, 0xfad, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // Control transfer instructions.
 call, 1, 0xe8, None, 1, CpuNo64, JumpDword|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp16|Disp32 }
 call, 1, 0xe8, None, 1, Cpu64, AMD64|JumpDword|DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64|BNDPrefixOk, { Disp16|Disp32S }
 call, 1, 0xe8, None, 1, Cpu64, Intel64|JumpDword|DefaultSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64|BNDPrefixOk, { Disp32S }
 call, 1, 0xff, 0x2, 1, CpuNo64, Modrm|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Reg16|Reg32|Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|JumpAbsolute }
 call, 1, 0xff, 0x2, 1, Cpu64, AMD64|Modrm|DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64|BNDPrefixOk, { Reg16|Reg64|Word|Qword|Unspecified|BaseIndex|Disp8|Disp32|Disp32S|JumpAbsolute }
 call, 1, 0xff, 0x2, 1, Cpu64, Intel64|Modrm|DefaultSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64|BNDPrefixOk, { Reg64|Qword|Unspecified|BaseIndex|Disp8|Disp32|Disp32S|JumpAbsolute }
 // Intel Syntax
 call, 2, 0x9a, None, 1, CpuNo64, JumpInterSegment|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Imm16, Imm16|Imm32 }
 // Intel Syntax
 call, 1, 0xff, 0x3, 1, 0, Modrm|DefaultSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf, { Dword|Fword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|JumpAbsolute }
 lcall, 2, 0x9a, None, 1, CpuNo64, JumpInterSegment|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Imm16, Imm16|Imm32 }
 lcall, 1, 0xff, 0x3, 1, 0, Modrm|DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|JumpAbsolute }

 jmp, 1, 0xeb, None, 1, CpuNo64, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32 }
 jmp, 1, 0xeb, None, 1, Cpu64, AMD64|Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32S }
 jmp, 1, 0xeb, None, 1, Cpu64, Intel64|Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp32S }
 jmp, 1, 0xff, 0x4, 1, CpuNo64, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Reg16|Reg32|Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|JumpAbsolute }
 jmp, 1, 0xff, 0x4, 1, Cpu64, AMD64|Modrm|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64|BNDPrefixOk, { Reg16|Reg64|Word|Qword|Unspecified|BaseIndex|Disp8|Disp32|Disp32S|JumpAbsolute }
 jmp, 1, 0xff, 0x4, 1, Cpu64, Intel64|Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64|BNDPrefixOk, { Reg64|Qword|Unspecified|BaseIndex|Disp8|Disp32|Disp32S|JumpAbsolute }
 // Intel Syntax.
 jmp, 2, 0xea, None, 1, CpuNo64, JumpInterSegment|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Imm16, Imm16|Imm32 }
 // Intel Syntax.
 jmp, 1, 0xff, 0x5, 1, 0, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf, { Dword|Fword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|JumpAbsolute }
 ljmp, 2, 0xea, None, 1, CpuNo64, JumpInterSegment|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Imm16, Imm16|Imm32 }
 ljmp, 1, 0xff, 0x5, 1, 0, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|JumpAbsolute }

 ret, 0, 0xc3, None, 1, CpuNo64, DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf|RepPrefixOk|BNDPrefixOk, { 0 }
 ret, 1, 0xc2, None, 1, CpuNo64, DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf|RepPrefixOk|BNDPrefixOk, { Imm16 }
 ret, 0, 0xc3, None, 1, Cpu64, DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64|RepPrefixOk|BNDPrefixOk, { 0 }
 ret, 1, 0xc2, None, 1, Cpu64, DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64|RepPrefixOk|BNDPrefixOk, { Imm16 }
 lret, 0, 0xcb, None, 1, 0, DefaultSize|No_bSuf|No_sSuf|No_ldSuf, { 0 }
 lret, 1, 0xca, None, 1, 0, DefaultSize|No_bSuf|No_sSuf|No_ldSuf, { Imm16 }
 // Intel Syntax.
 retf, 0, 0xcb, None, 1, 0, DefaultSize|No_bSuf|No_sSuf|No_ldSuf, { 0 }
 retf, 1, 0xca, None, 1, 0, DefaultSize|No_bSuf|No_sSuf|No_ldSuf, { Imm16 }

 enter, 2, 0xc8, None, 1, Cpu186|CpuNo64, DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Imm16, Imm8 }
 enter, 2, 0xc8, None, 1, Cpu64, DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Imm16, Imm8 }
 leave, 0, 0xc9, None, 1, Cpu186|CpuNo64, DefaultSize|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 leave, 0, 0xc9, None, 1, Cpu64, DefaultSize|No_bSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { 0 }

 // Conditional jumps.
 jo, 1, 0x70, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jno, 1, 0x71, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jb, 1, 0x72, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jc, 1, 0x72, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jnae, 1, 0x72, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jnb, 1, 0x73, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jnc, 1, 0x73, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jae, 1, 0x73, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 je, 1, 0x74, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jz, 1, 0x74, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jne, 1, 0x75, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jnz, 1, 0x75, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jbe, 1, 0x76, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jna, 1, 0x76, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jnbe, 1, 0x77, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 ja, 1, 0x77, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 js, 1, 0x78, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jns, 1, 0x79, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jp, 1, 0x7a, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jpe, 1, 0x7a, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jnp, 1, 0x7b, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jpo, 1, 0x7b, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jl, 1, 0x7c, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jnge, 1, 0x7c, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jnl, 1, 0x7d, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jge, 1, 0x7d, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jle, 1, 0x7e, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jng, 1, 0x7e, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jnle, 1, 0x7f, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }
 jg, 1, 0x7f, None, 1, 0, Jump|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|BNDPrefixOk, { Disp8|Disp16|Disp32|Disp32S }

 // jcxz vs. jecxz is chosen on the basis of the address size prefix.
 jcxz, 1, 0xe3, None, 1, CpuNo64, JumpByte|Size16|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Disp8|Disp16|Disp32 }
 jecxz, 1, 0xe3, None, 1, 0, JumpByte|Size32|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Disp8|Disp16|Disp32|Disp32S }
 jrcxz, 1, 0xe3, None, 1, Cpu64, JumpByte|Size64|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|NoRex64, { Disp8|Disp32|Disp32S }

 // The loop instructions also use the address size prefix to select
 // %cx rather than %ecx for the loop count, so the `w' form of these
 // instructions emit an address size prefix rather than a data size
 //  prefix.
 loop, 1, 0xe2, None, 1, CpuNo64, JumpByte|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Disp8|Disp16|Disp32 }
 loop, 1, 0xe2, None, 1, Cpu64, JumpByte|No_bSuf|No_wSuf|No_sSuf|No_ldSuf|NoRex64, { Disp8|Disp32|Disp32S }
 loopz, 1, 0xe1, None, 1, CpuNo64, JumpByte|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Disp8|Disp16|Disp32 }
 loopz, 1, 0xe1, None, 1, Cpu64, JumpByte|No_bSuf|No_wSuf|No_sSuf|No_ldSuf|NoRex64, { Disp8|Disp32|Disp32S }
 loope, 1, 0xe1, None, 1, CpuNo64, JumpByte|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Disp8|Disp16|Disp32 }
 loope, 1, 0xe1, None, 1, Cpu64, JumpByte|No_bSuf|No_wSuf|No_sSuf|No_ldSuf|NoRex64, { Disp8|Disp32|Disp32S }
 loopnz, 1, 0xe0, None, 1, CpuNo64, JumpByte|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Disp8|Disp16|Disp32 }
 loopnz, 1, 0xe0, None, 1, Cpu64, JumpByte|No_bSuf|No_wSuf|No_sSuf|No_ldSuf|NoRex64, { Disp8|Disp32|Disp32S }
 loopne, 1, 0xe0, None, 1, CpuNo64, JumpByte|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Disp8|Disp16|Disp32 }
 loopne, 1, 0xe0, None, 1, Cpu64, JumpByte|No_bSuf|No_wSuf|No_sSuf|No_ldSuf|NoRex64, { Disp8|Disp32|Disp32S }

 // Set byte on flag instructions.
 seto, 1, 0xf90, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setno, 1, 0xf91, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setb, 1, 0xf92, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setc, 1, 0xf92, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setnae, 1, 0xf92, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setnb, 1, 0xf93, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setnc, 1, 0xf93, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setae, 1, 0xf93, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sete, 1, 0xf94, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setz, 1, 0xf94, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setne, 1, 0xf95, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setnz, 1, 0xf95, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setbe, 1, 0xf96, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setna, 1, 0xf96, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setnbe, 1, 0xf97, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 seta, 1, 0xf97, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 sets, 1, 0xf98, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setns, 1, 0xf99, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setp, 1, 0xf9a, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setpe, 1, 0xf9a, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setnp, 1, 0xf9b, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setpo, 1, 0xf9b, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setl, 1, 0xf9c, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setnge, 1, 0xf9c, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setnl, 1, 0xf9d, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setge, 1, 0xf9d, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setle, 1, 0xf9e, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setng, 1, 0xf9e, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setnle, 1, 0xf9f, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 setg, 1, 0xf9f, 0x0, 2, Cpu386, Modrm|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg8|Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // String manipulation.
 cmps, 0, 0xa6, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 cmps, 2, 0xa6, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg, Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 scmp, 0, 0xa6, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 scmp, 2, 0xa6, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg, Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 ins, 0, 0x6c, None, 1, Cpu186, W|No_sSuf|No_qSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 ins, 2, 0x6c, None, 1, Cpu186, W|CheckRegSize|No_sSuf|No_qSuf|No_ldSuf|IsString|RepPrefixOk, { InOutPortReg, Byte|Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg }
 outs, 0, 0x6e, None, 1, Cpu186, W|No_sSuf|No_qSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 outs, 2, 0x6e, None, 1, Cpu186, W|CheckRegSize|No_sSuf|No_qSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, InOutPortReg }
 lods, 0, 0xac, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 lods, 1, 0xac, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 lods, 2, 0xac, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Acc|Byte|Word|Dword|Qword }
 slod, 0, 0xac, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 slod, 1, 0xac, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 slod, 2, 0xac, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Acc|Byte|Word|Dword|Qword }
 movs, 0, 0xa4, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 movs, 2, 0xa4, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg }
 smov, 0, 0xa4, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 smov, 2, 0xa4, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg }
 scas, 0, 0xae, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 scas, 1, 0xae, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg }
 scas, 2, 0xae, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg, Acc|Byte|Word|Dword|Qword }
 ssca, 0, 0xae, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 ssca, 1, 0xae, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg }
 ssca, 2, 0xae, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg, Acc|Byte|Word|Dword|Qword }
 stos, 0, 0xaa, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 stos, 1, 0xaa, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg }
 stos, 2, 0xaa, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Acc|Byte|Word|Dword|Qword, Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg }
 ssto, 0, 0xaa, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { 0 }
 ssto, 1, 0xaa, None, 1, 0, W|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg }
 ssto, 2, 0xaa, None, 1, 0, W|CheckRegSize|No_sSuf|No_ldSuf|IsString|RepPrefixOk, { Acc|Byte|Word|Dword|Qword, Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S|EsSeg }
 xlat, 0, 0xd7, None, 1, 0, No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsString, { 0 }
 xlat, 1, 0xd7, None, 1, 0, No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsString, { Byte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // Bit manipulation.
 bsf, 2, 0xfbc, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf|RepPrefixOk, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 bsr, 2, 0xfbd, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf|RepPrefixOk, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 bt, 2, 0xfa3, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 bt, 2, 0xfba, 0x4, 2, Cpu386, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Imm8, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 btc, 2, 0xfbb, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 btc, 2, 0xfba, 0x7, 2, Cpu386, Modrm|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 btr, 2, 0xfb3, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 btr, 2, 0xfba, 0x6, 2, Cpu386, Modrm|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 bts, 2, 0xfab, None, 2, Cpu386, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg16|Reg32|Reg64, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 bts, 2, 0xfba, 0x5, 2, Cpu386, Modrm|No_bSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Imm8, Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // Interrupts & op. sys insns.
 // See gas/config/tc-i386.c for conversion of 'int $3' into the special
 // int 3 insn.
 int, 1, 0xcd, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Imm8 }
 int3, 0, 0xcc, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 into, 0, 0xce, None, 1, CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 iret, 0, 0xcf, None, 1, 0, DefaultSize|No_bSuf|No_sSuf|No_ldSuf, { 0 }
 // i386sl, i486sl, later 486, and Pentium.
 rsm, 0, 0xfaa, None, 2, Cpu386, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 bound, 2, 0x62, None, 1, Cpu186|CpuNo64, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Reg32, Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32 }

 hlt, 0, 0xf4, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 nop, 1, 0xf1f, 0x0, 2, CpuNop, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // nop is actually "xchg %ax,%ax" in 16bit mode, "xchg %eax,%eax" in
 // 32bit mode and "xchg %rax,%rax" in 64bit mode.
 nop, 0, 0x90, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|RepPrefixOk, { 0 }

 // Protection control.
 arpl, 2, 0x63, None, 1, Cpu286|CpuNo64, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16, Reg16|Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32 }
 lar, 2, 0xf02, None, 2, Cpu286, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 lgdt, 1, 0xf01, 0x2, 2, Cpu286|CpuNo64, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Fword|Unspecified|BaseIndex|Disp8|Disp16|Disp32 }
 lgdt, 1, 0xf01, 0x2, 2, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Tbyte|Unspecified|BaseIndex|Disp8|Disp32|Disp32S }
 lidt, 1, 0xf01, 0x3, 2, Cpu286|CpuNo64, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Fword|Unspecified|BaseIndex|Disp8|Disp16|Disp32 }
 lidt, 1, 0xf01, 0x3, 2, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Tbyte|Unspecified|BaseIndex|Disp8|Disp32|Disp32S }
 lldt, 1, 0xf00, 0x2, 2, Cpu286, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 lmsw, 1, 0xf01, 0x6, 2, Cpu286, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 lsl, 2, 0xf03, None, 2, Cpu286, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 ltr, 1, 0xf00, 0x3, 2, Cpu286, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 sgdt, 1, 0xf01, 0x0, 2, Cpu286|CpuNo64, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Fword|Unspecified|BaseIndex|Disp8|Disp16|Disp32 }
 sgdt, 1, 0xf01, 0x0, 2, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Tbyte|Unspecified|BaseIndex|Disp8|Disp32|Disp32S }
 sidt, 1, 0xf01, 0x1, 2, Cpu286|CpuNo64, Modrm|No_bSuf|No_sSuf|No_qSuf|No_ldSuf, { Fword|Unspecified|BaseIndex|Disp8|Disp16|Disp32 }
 sidt, 1, 0xf01, 0x1, 2, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Tbyte|Unspecified|BaseIndex|Disp8|Disp32|Disp32S }
 sldt, 1, 0xf00, 0x0, 2, Cpu286, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64 }
 sldt, 1, 0xf00, 0x0, 2, Cpu286, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 smsw, 1, 0xf01, 0x4, 2, Cpu286, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64 }
 smsw, 1, 0xf01, 0x4, 2, Cpu286, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 str, 1, 0xf00, 0x1, 2, Cpu286, Modrm|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64 }
 str, 1, 0xf00, 0x1, 2, Cpu286, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 verr, 1, 0xf00, 0x4, 2, Cpu286, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 verw, 1, 0xf00, 0x5, 2, Cpu286, Modrm|IgnoreSize|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Reg16|Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // Floating point instructions.

 // load
 fld, 1, 0xd9c0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 fld, 1, 0xd9, 0x0, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fld, 1, 0xd9c0, None, 2, CpuFP, ShortForm|IgnoreSize|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh, { FloatReg }
 // Intel Syntax
 fld, 1, 0xdb, 0x5, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf, { Tbyte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fild, 1, 0xdf, 0x0, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fild, 1, 0xdf, 0x5, 1, CpuFP, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fildll, 1, 0xdf, 0x5, 1, CpuFP, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fldt, 1, 0xdb, 0x5, 1, CpuFP, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Tbyte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fbld, 1, 0xdf, 0x4, 1, CpuFP, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf, { Tbyte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // store (no pop)
 fst, 1, 0xddd0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 fst, 1, 0xd9, 0x2, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fst, 1, 0xddd0, None, 2, CpuFP, ShortForm|IgnoreSize|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh, { FloatReg }
 fist, 1, 0xdf, 0x2, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // store (with pop)
 fstp, 1, 0xddd8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 fstp, 1, 0xd9, 0x3, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fstp, 1, 0xddd8, None, 2, CpuFP, ShortForm|IgnoreSize|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh, { FloatReg }
 // Intel Syntax
 fstp, 1, 0xdb, 0x7, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf, { Tbyte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fistp, 1, 0xdf, 0x3, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fistp, 1, 0xdf, 0x7, 1, CpuFP, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|NoRex64, { Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fistpll, 1, 0xdf, 0x7, 1, CpuFP, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fstpt, 1, 0xdb, 0x7, 1, CpuFP, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Tbyte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fbstp, 1, 0xdf, 0x6, 1, CpuFP, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf, { Tbyte|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // exchange %st<n> with %st0
 fxch, 1, 0xd9c8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 // alias for fxch %st(1)
 fxch, 0, 0xd9c9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 // comparison (without pop)
 fcom, 1, 0xd8d0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 // alias for fcom %st(1)
 fcom, 0, 0xd8d1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fcom, 1, 0xd8, 0x2, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fcom, 1, 0xd8d0, None, 2, CpuFP, ShortForm|IgnoreSize|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh, { FloatReg }
 ficom, 1, 0xde, 0x2, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // comparison (with pop)
 fcomp, 1, 0xd8d8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 // alias for fcomp %st(1)
 fcomp, 0, 0xd8d9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fcomp, 1, 0xd8, 0x3, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fcomp, 1, 0xd8d8, None, 2, CpuFP, ShortForm|IgnoreSize|No_bSuf|No_wSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh, { FloatReg }
 ficomp, 1, 0xde, 0x3, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fcompp, 0, 0xded9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 // unordered comparison (with pop)
 fucom, 1, 0xdde0, None, 2, Cpu387, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 // alias for fucom %st(1)
 fucom, 0, 0xdde1, None, 2, Cpu387, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fucomp, 1, 0xdde8, None, 2, Cpu387, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 // alias for fucomp %st(1)
 fucomp, 0, 0xdde9, None, 2, Cpu387, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fucompp, 0, 0xdae9, None, 2, Cpu387, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 ftst, 0, 0xd9e4, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fxam, 0, 0xd9e5, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 // load constants into %st0
 fld1, 0, 0xd9e8, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fldl2t, 0, 0xd9e9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fldl2e, 0, 0xd9ea, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fldpi, 0, 0xd9eb, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fldlg2, 0, 0xd9ec, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fldln2, 0, 0xd9ed, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fldz, 0, 0xd9ee, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 // Arithmetic.

 // add
 fadd, 2, 0xd8c0, None, 2, CpuFP, ShortForm|FloatD|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg, FloatAcc }
 // alias for fadd %st(i), %st
 fadd, 1, 0xd8c0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 // alias for faddp
 fadd, 0, 0xdec1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic, { 0 }
 fadd, 1, 0xd8, 0x0, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fiadd, 1, 0xde, 0x0, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 faddp, 2, 0xdec0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatAcc, FloatReg }
 faddp, 1, 0xdec0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 // alias for faddp %st, %st(1)
 faddp, 0, 0xdec1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 faddp, 2, 0xdec0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh, { FloatReg, FloatAcc }

 // subtract
 fsub, 1, 0xd8e0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 fsub, 2, 0xd8e0, None, 2, CpuFP, ShortForm|FloatD|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatReg, FloatAcc }
 // alias for fsubp
 fsub, 0, 0xdee1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|ATTSyntax, { 0 }
 fsub, 0, 0xdee9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic, { 0 }
 fsub, 2, 0xd8e0, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm|FloatD|FloatR, { FloatReg, FloatAcc }
 fsub, 1, 0xd8, 0x4, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fisub, 1, 0xde, 0x4, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 fsubp, 2, 0xdee0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatAcc, FloatReg }
 fsubp, 1, 0xdee0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatReg }
 fsubp, 0, 0xdee1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { 0 }
 fsubp, 2, 0xdee0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|ATTSyntax|OldGcc, { FloatReg, FloatAcc }
 fsubp, 2, 0xdee9, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|OldGcc, { FloatReg, FloatAcc }
 fsubp, 2, 0xdee8, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm, { FloatAcc, FloatReg }
 fsubp, 1, 0xdee8, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm, { FloatReg }
 fsubp, 0, 0xdee9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 // subtract reverse
 fsubr, 1, 0xd8e8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 fsubr, 2, 0xd8e8, None, 2, CpuFP, ShortForm|FloatD|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatReg, FloatAcc }
 // alias for fsubrp
 fsubr, 0, 0xdee9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|ATTSyntax, { 0 }
 fsubr, 0, 0xdee1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic, { 0 }
 fsubr, 2, 0xd8e8, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm|FloatD|FloatR, { FloatReg, FloatAcc }
 fsubr, 1, 0xd8, 0x5, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fisubr, 1, 0xde, 0x5, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 fsubrp, 2, 0xdee8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatAcc, FloatReg }
 fsubrp, 1, 0xdee8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatReg }
 fsubrp, 0, 0xdee9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { 0 }
 fsubrp, 2, 0xdee8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|ATTSyntax|OldGcc, { FloatReg, FloatAcc }
 fsubrp, 2, 0xdee0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|OldGcc, { FloatReg, FloatAcc }
 fsubrp, 2, 0xdee0, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm, { FloatAcc, FloatReg }
 fsubrp, 1, 0xdee0, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm, { FloatReg }
 fsubrp, 0, 0xdee1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf, { 0 }

 // multiply
 fmul, 2, 0xd8c8, None, 2, CpuFP, ShortForm|FloatD|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg, FloatAcc }
 fmul, 1, 0xd8c8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 // alias for fmulp
 fmul, 0, 0xdec9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic, { 0 }
 fmul, 1, 0xd8, 0x1, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fimul, 1, 0xde, 0x1, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 fmulp, 2, 0xdec8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatAcc, FloatReg }
 fmulp, 1, 0xdec8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 fmulp, 0, 0xdec9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fmulp, 2, 0xdec8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh, { FloatReg, FloatAcc }

 // divide
 fdiv, 1, 0xd8f0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 fdiv, 2, 0xd8f0, None, 2, CpuFP, ShortForm|FloatD|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatReg, FloatAcc }
 // alias for fdivp
 fdiv, 0, 0xdef1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|ATTSyntax, { 0 }
 fdiv, 0, 0xdef9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic, { 0 }
 fdiv, 2, 0xd8f0, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm|FloatD|FloatR, { FloatReg, FloatAcc }
 fdiv, 1, 0xd8, 0x6, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fidiv, 1, 0xde, 0x6, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 fdivp, 2, 0xdef0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatAcc, FloatReg }
 fdivp, 1, 0xdef0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatReg }
 fdivp, 0, 0xdef1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { 0 }
 fdivp, 2, 0xdef0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|ATTSyntax|OldGcc, { FloatReg, FloatAcc }
 fdivp, 2, 0xdef8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|OldGcc, { FloatReg, FloatAcc }
 fdivp, 2, 0xdef8, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm, { FloatAcc, FloatReg }
 fdivp, 1, 0xdef8, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm, { FloatReg }
 fdivp, 0, 0xdef9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf, { 0 }

 // divide reverse
 fdivr, 1, 0xd8f8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 fdivr, 2, 0xd8f8, None, 2, CpuFP, ShortForm|FloatD|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatReg, FloatAcc }
 // alias for fdivrp
 fdivr, 0, 0xdef9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|ATTSyntax, { 0 }
 fdivr, 0, 0xdef1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic, { 0 }
 fdivr, 2, 0xd8f8, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm|FloatD|FloatR, { FloatReg, FloatAcc }
 fdivr, 1, 0xd8, 0x7, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fidivr, 1, 0xde, 0x7, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Word|Dword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 fdivrp, 2, 0xdef8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatAcc, FloatReg }
 fdivrp, 1, 0xdef8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { FloatReg }
 fdivrp, 0, 0xdef9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|ATTMnemonic|ATTSyntax, { 0 }
 fdivrp, 2, 0xdef8, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|ATTSyntax|OldGcc, { FloatReg, FloatAcc }
 fdivrp, 2, 0xdef0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|Ugh|ATTMnemonic|OldGcc, { FloatReg, FloatAcc }
 fdivrp, 2, 0xdef0, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm, { FloatAcc, FloatReg }
 fdivrp, 1, 0xdef0, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf|ShortForm, { FloatReg }
 fdivrp, 0, 0xdef1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|No_qSuf,	{ 0 }

 f2xm1, 0, 0xd9f0, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fyl2x, 0, 0xd9f1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fptan, 0, 0xd9f2, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fpatan, 0, 0xd9f3, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fxtract, 0, 0xd9f4, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fprem1, 0, 0xd9f5, None, 2, Cpu387, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fdecstp, 0, 0xd9f6, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fincstp, 0, 0xd9f7, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fprem, 0, 0xd9f8, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fyl2xp1, 0, 0xd9f9, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fsqrt, 0, 0xd9fa, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fsincos, 0, 0xd9fb, None, 2, Cpu387, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 frndint, 0, 0xd9fc, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fscale, 0, 0xd9fd, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fsin, 0, 0xd9fe, None, 2, Cpu387, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fcos, 0, 0xd9ff, None, 2, Cpu387, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fchs, 0, 0xd9e0, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fabs, 0, 0xd9e1, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 // processor control
 fninit, 0, 0xdbe3, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 finit, 0, 0xdbe3, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|FWait, { 0 }
 fldcw, 1, 0xd9, 0x5, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fnstcw, 1, 0xd9, 0x7, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fstcw, 1, 0xd9, 0x7, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|FWait, { Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fnstsw, 1, 0xdfe0, None, 2, Cpu287|Cpu387, IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Acc|Word }
 fnstsw, 1, 0xdd, 0x7, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fnstsw, 0, 0xdfe0, None, 2, Cpu287|Cpu387, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fstsw, 1, 0xdfe0, None, 2, Cpu287|Cpu387, IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|FWait, { Acc|Word }
 fstsw, 1, 0xdd, 0x7, 1, CpuFP, Modrm|FloatMF|No_bSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|FWait, { word|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fstsw, 0, 0xdfe0, None, 2, Cpu287|Cpu387, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|FWait, { 0 }
 fnclex, 0, 0xdbe2, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fclex, 0, 0xdbe2, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|FWait, { 0 }
 // Short forms of fldenv, fstenv use data size prefix.
 fnstenv, 1, 0xd9, 0x6, 1, CpuFP, Modrm|DefaultSize|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fstenv, 1, 0xd9, 0x6, 1, CpuFP, Modrm|DefaultSize|No_bSuf|No_wSuf|No_qSuf|No_ldSuf|FWait, { Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fldenv, 1, 0xd9, 0x4, 1, CpuFP, Modrm|DefaultSize|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fnsave, 1, 0xdd, 0x6, 1, CpuFP, Modrm|DefaultSize|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fsave, 1, 0xdd, 0x6, 1, CpuFP, Modrm|DefaultSize|No_bSuf|No_wSuf|No_qSuf|No_ldSuf|FWait, { Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 frstor, 1, 0xdd, 0x4, 1, CpuFP, Modrm|DefaultSize|No_bSuf|No_wSuf|No_qSuf|No_ldSuf, { Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 // 8087 only
 fneni, 0, 0xdbe0, None, 2, Cpu8087, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 feni, 0, 0xdbe0, None, 2, Cpu8087, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|FWait, { 0 }
 fndisi, 0, 0xdbe1, None, 2, Cpu8087, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fdisi, 0, 0xdbe1, None, 2, Cpu8087, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|FWait, { 0 }
 // 287 only
 fnsetpm, 0, 0xdbe4, None, 2, Cpu287, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fsetpm, 0, 0xdbe4, None, 2, Cpu287, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|FWait, { 0 }
 frstpm, 0, 0xdbe5, None, 2, Cpu287, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 ffree, 1, 0xddc0, None, 2, CpuFP, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 // P6:free st(i), pop st
 ffreep, 1, 0xdfc0, None, 2, Cpu687, ShortForm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { FloatReg }
 fnop, 0, 0xd9d0, None, 2, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fwait, 0, 0x9b, None, 1, CpuFP, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 // Opcode prefixes; we allow them as separate insns too.

 addr16, 0, 0x67, None, 1, Cpu386|CpuNo64, Size16|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 addr32, 0, 0x67, None, 1, Cpu386, Size32|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 aword, 0, 0x67, None, 1, Cpu386|CpuNo64, Size16|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 adword, 0, 0x67, None, 1, Cpu386, Size32|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 data16, 0, 0x66, None, 1, Cpu386, Size16|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 data32, 0, 0x66, None, 1, Cpu386|CpuNo64, Size32|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 word, 0, 0x66, None, 1, Cpu386, Size16|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 dword, 0, 0x66, None, 1, Cpu386|CpuNo64, Size32|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 lock, 0, 0xf0, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 wait, 0, 0x9b, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 cs, 0, 0x2e, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 ds, 0, 0x3e, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 es, 0, 0x26, None, 1, CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 fs, 0, 0x64, None, 1, Cpu386, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 gs, 0, 0x65, None, 1, Cpu386, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 ss, 0, 0x36, None, 1, CpuNo64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rep, 0, 0xf3, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 repe, 0, 0xf3, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 repz, 0, 0xf3, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 repne, 0, 0xf2, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 repnz, 0, 0xf2, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 ht, 0, 0x3e, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 hnt, 0, 0x2e, None, 1, 0, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex, 0, 0x40, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rexz, 0, 0x41, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rexy, 0, 0x42, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rexyz, 0, 0x43, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rexx, 0, 0x44, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rexxz, 0, 0x45, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rexxy, 0, 0x46, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rexxyz, 0, 0x47, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex64, 0, 0x48, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex64z, 0, 0x49, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex64y, 0, 0x4a, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex64yz, 0, 0x4b, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex64x, 0, 0x4c, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex64xz, 0, 0x4d, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex64xy, 0, 0x4e, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex64xyz, 0, 0x4f, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.b, 0, 0x41, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.x, 0, 0x42, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.xb, 0, 0x43, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.r, 0, 0x44, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.rb, 0, 0x45, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.rx, 0, 0x46, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.rxb, 0, 0x47, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.w, 0, 0x48, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.wb, 0, 0x49, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.wx, 0, 0x4a, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.wxb, 0, 0x4b, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.wr, 0, 0x4c, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.wrb, 0, 0x4d, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.wrx, 0, 0x4e, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }
 rex.wrxb, 0, 0x4f, None, 1, Cpu64, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf|IsPrefix, { 0 }

 // 486 extensions.

 bswap, 1, 0xfc8, None, 2, Cpu486, ShortForm|No_bSuf|No_wSuf|No_sSuf|No_ldSuf, { Reg32|Reg64 }
 xadd, 2, 0xfc0, None, 2, Cpu486, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 cmpxchg, 2, 0xfb0, None, 2, Cpu486, W|CheckRegSize|Modrm|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Reg8|Reg16|Reg32|Reg64, Reg8|Reg16|Reg32|Reg64|Byte|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 invd, 0, 0xf08, None, 2, Cpu486, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 wbinvd, 0, 0xf09, None, 2, Cpu486, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 invlpg, 1, 0xf01, 0x7, 2, Cpu486, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { Anysize|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // 586 and late 486 extensions.
 cpuid, 0, 0xfa2, None, 2, Cpu486, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 // Pentium extensions.
 wrmsr, 0, 0xf30, None, 2, Cpu586, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 rdtsc, 0, 0xf31, None, 2, Cpu586, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 rdmsr, 0, 0xf32, None, 2, Cpu586, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 cmpxchg8b, 1, 0xfc7, 0x1, 2, Cpu586, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|IsLockable|HLEPrefixOk, { Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }

 // Pentium II/Pentium Pro extensions.
 sysenter, 0, 0xf34, None, 2, Cpu686, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 sysexit, 0, 0xf35, None, 2, Cpu686, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 fxsave, 1, 0xfae, 0x0, 2, Cpu686, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf, { Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fxsave64, 1, 0xfae, 0x0, 2, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|Rex64, { Unspecified|BaseIndex|Disp8|Disp32|Disp32S }
 fxrstor, 1, 0xfae, 0x1, 2, Cpu686, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf, { Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S }
 fxrstor64, 1, 0xfae, 0x1, 2, Cpu64, Modrm|No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_ldSuf|Rex64, { Unspecified|BaseIndex|Disp8|Disp32|Disp32S }
 rdpmc, 0, 0xf33, None, 2, Cpu686, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 // official undefined instr.
 ud2, 0, 0xf0b, None, 2, Cpu186, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 // alias for ud2
 ud2a, 0, 0xf0b, None, 2, Cpu186, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 // 2nd. official undefined instr.
 ud1, 0, 0xfb9, None, 2, Cpu186, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }
 // alias for ud1
 ud2b, 0, 0xfb9, None, 2, Cpu186, No_bSuf|No_wSuf|No_lSuf|No_sSuf|No_qSuf|No_ldSuf, { 0 }

 cmovo, 2, 0xf40, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovno, 2, 0xf41, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovb, 2, 0xf42, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovc, 2, 0xf42, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovnae, 2, 0xf42, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovae, 2, 0xf43, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovnc, 2, 0xf43, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovnb, 2, 0xf43, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmove, 2, 0xf44, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovz, 2, 0xf44, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovne, 2, 0xf45, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovnz, 2, 0xf45, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovbe, 2, 0xf46, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovna, 2, 0xf46, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmova, 2, 0xf47, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovnbe, 2, 0xf47, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovs, 2, 0xf48, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovns, 2, 0xf49, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovp, 2, 0xf4a, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovnp, 2, 0xf4b, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovl, 2, 0xf4c, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovnge, 2, 0xf4c, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovge, 2, 0xf4d, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovnl, 2, 0xf4d, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovle, 2, 0xf4e, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovng, 2, 0xf4e, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovg, 2, 0xf4f, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovnle, 2, 0xf4f, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovpe, 2, 0xf4a, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf, { Reg16|Reg32|Reg64|Word|Dword|Qword|Unspecified|BaseIndex|Disp8|Disp16|Disp32|Disp32S, Reg16|Reg32|Reg64 }
 cmovpo, 2, 0xf4b, None, 2, Cpu686, Modrm|CheckRegSize|No_bSuf|No_sSuf|No_ldSuf,