path: root/opcodes/i386-reg.tbl

// i386 register table.
// Copyright (C) 2007-2019 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.

// Make %st first as we test for it.
st, FloatReg|Acc, 0, 0, 11, 33
// 8 bit regs
al, Reg8|Acc, 0, 0, Dw2Inval, Dw2Inval
cl, Reg8|ShiftCount, 0, 1, Dw2Inval, Dw2Inval
dl, Reg8, 0, 2, Dw2Inval, Dw2Inval
bl, Reg8, 0, 3, Dw2Inval, Dw2Inval
ah, Reg8, 0, 4, Dw2Inval, Dw2Inval
ch, Reg8, 0, 5, Dw2Inval, Dw2Inval
dh, Reg8, 0, 6, Dw2Inval, Dw2Inval
bh, Reg8, 0, 7, Dw2Inval, Dw2Inval
axl, Reg8, RegRex64, 0, Dw2Inval, Dw2Inval
cxl, Reg8, RegRex64, 1, Dw2Inval, Dw2Inval
dxl, Reg8, RegRex64, 2, Dw2Inval, Dw2Inval
bxl, Reg8, RegRex64, 3, Dw2Inval, Dw2Inval
spl, Reg8, RegRex64, 4, Dw2Inval, Dw2Inval
bpl, Reg8, RegRex64, 5, Dw2Inval, Dw2Inval
sil, Reg8, RegRex64, 6, Dw2Inval, Dw2Inval
dil, Reg8, RegRex64, 7, Dw2Inval, Dw2Inval
r8b, Reg8, RegRex|RegRex64, 0, Dw2Inval, Dw2Inval
r9b, Reg8, RegRex|RegRex64, 1, Dw2Inval, Dw2Inval
r10b, Reg8, RegRex|RegRex64, 2, Dw2Inval, Dw2Inval
r11b, Reg8, RegRex|RegRex64, 3, Dw2Inval, Dw2Inval
r12b, Reg8, RegRex|RegRex64, 4, Dw2Inval, Dw2Inval
r13b, Reg8, RegRex|RegRex64, 5, Dw2Inval, Dw2Inval
r14b, Reg8, RegRex|RegRex64, 6, Dw2Inval, Dw2Inval
r15b, Reg8, RegRex|RegRex64, 7, Dw2Inval, Dw2Inval
// 16 bit regs
ax, Reg16|Acc, 0, 0, Dw2Inval, Dw2Inval
cx, Reg16, 0, 1, Dw2Inval, Dw2Inval
dx, Reg16|InOutPortReg, 0, 2, Dw2Inval, Dw2Inval
bx, Reg16|BaseIndex, 0, 3, Dw2Inval, Dw2Inval
sp, Reg16, 0, 4, Dw2Inval, Dw2Inval
bp, Reg16|BaseIndex, 0, 5, Dw2Inval, Dw2Inval
si, Reg16|BaseIndex, 0, 6, Dw2Inval, Dw2Inval
di, Reg16|BaseIndex, 0, 7, Dw2Inval, Dw2Inval
r8w, Reg16, RegRex, 0, Dw2Inval, Dw2Inval
r9w, Reg16, RegRex, 1, Dw2Inval, Dw2Inval
r10w, Reg16, RegRex, 2, Dw2Inval, Dw2Inval
r11w, Reg16, RegRex, 3, Dw2Inval, Dw2Inval
r12w, Reg16, RegRex, 4, Dw2Inval, Dw2Inval
r13w, Reg16, RegRex, 5, Dw2Inval, Dw2Inval
r14w, Reg16, RegRex, 6, Dw2Inval, Dw2Inval
r15w, Reg16, RegRex, 7, Dw2Inval, Dw2Inval
// 32 bit regs
eax, Reg32|BaseIndex|Acc, 0, 0, 0, Dw2Inval
ecx, Reg32|BaseIndex, 0, 1, 1, Dw2Inval
edx, Reg32|BaseIndex, 0, 2, 2, Dw2Inval
ebx, Reg32|BaseIndex, 0, 3, 3, Dw2Inval
esp, Reg32, 0, 4, 4, Dw2Inval
ebp, Reg32|BaseIndex, 0, 5, 5, Dw2Inval
esi, Reg32|BaseIndex, 0, 6, 6, Dw2Inval
edi, Reg32|BaseIndex, 0, 7, 7, Dw2Inval
r8d, Reg32|BaseIndex, RegRex, 0, Dw2Inval, Dw2Inval
r9d, Reg32|BaseIndex, RegRex, 1, Dw2Inval, Dw2Inval
r10d, Reg32|BaseIndex, RegRex, 2, Dw2Inval, Dw2Inval
r11d, Reg32|BaseIndex, RegRex, 3, Dw2Inval, Dw2Inval
r12d, Reg32|BaseIndex, RegRex, 4, Dw2Inval, Dw2Inval
r13d, Reg32|BaseIndex, RegRex, 5, Dw2Inval, Dw2Inval
r14d, Reg32|BaseIndex, RegRex, 6, Dw2Inval, Dw2Inval
r15d, Reg32|BaseIndex, RegRex, 7, Dw2Inval, Dw2Inval
rax, Reg64|BaseIndex|Acc, 0, 0, Dw2Inval, 0
rcx, Reg64|BaseIndex, 0, 1, Dw2Inval, 2
rdx, Reg64|BaseIndex, 0, 2, Dw2Inval, 1
rbx, Reg64|BaseIndex, 0, 3, Dw2Inval, 3
rsp, Reg64, 0, 4, Dw2Inval, 7
rbp, Reg64|BaseIndex, 0, 5, Dw2Inval, 6
rsi, Reg64|BaseIndex, 0, 6, Dw2Inval, 4
rdi, Reg64|BaseIndex, 0, 7, Dw2Inval, 5
r8, Reg64|BaseIndex, RegRex, 0, Dw2Inval, 8
r9, Reg64|BaseIndex, RegRex, 1, Dw2Inval, 9
r10, Reg64|BaseIndex, RegRex, 2, Dw2Inval, 10
r11, Reg64|BaseIndex, RegRex, 3, Dw2Inval, 11
r12, Reg64|BaseIndex, RegRex, 4, Dw2Inval, 12
r13, Reg64|BaseIndex, RegRex, 5, Dw2Inval, 13
r14, Reg64|BaseIndex, RegRex, 6, Dw2Inval, 14
r15, Reg64|BaseIndex, RegRex, 7, Dw2Inval, 15
// Vector mask registers.
k0, RegMask, 0, 0, 93, 118
k1, RegMask, 0, 1, 94, 119
k2, RegMask, 0, 2, 95, 120
k3, RegMask, 0, 3, 96, 121
k4, RegMask, 0, 4, 97, 122
k5, RegMask, 0, 5, 98, 123
k6, RegMask, 0, 6, 99, 124
k7, RegMask, 0, 7, 100, 125
// Segment registers.
es, SReg, 0, 0, 40, 50
cs, SReg, 0, 1, 41, 51
ss, SReg, 0, 2, 42, 52
ds, SReg, 0, 3, 43, 53
fs, SReg, 0, 4, 44, 54
gs, SReg, 0, 5, 45, 55
flat, SReg, 0, RegFlat, Dw2Inval, Dw2Inval
// Control registers.
cr0, Control, 0, 0, Dw2Inval, Dw2Inval
cr1, Control, 0, 1, Dw2Inval, Dw2Inval
cr2, Control, 0, 2, Dw2Inval, Dw2Inval
cr3, Control, 0, 3, Dw2Inval, Dw2Inval
cr4, Control, 0, 4, Dw2Inval, Dw2Inval
cr5, Control, 0, 5, Dw2Inval, Dw2Inval
cr6, Control, 0, 6, Dw2Inval, Dw2Inval
cr7, Control, 0, 7, Dw2Inval, Dw2Inval
cr8, Control, RegRex, 0, Dw2Inval, Dw2Inval
cr9, Control, RegRex, 1, Dw2Inval, Dw2Inval
cr10, Control, RegRex, 2, Dw2Inval, Dw2Inval
cr11, Control, RegRex, 3, Dw2Inval, Dw2Inval
cr12, Control, RegRex, 4, Dw2Inval, Dw2Inval
cr13, Control, RegRex, 5, Dw2Inval, Dw2Inval
cr14, Control, RegRex, 6, Dw2Inval, Dw2Inval
cr15, Control, RegRex, 7, Dw2Inval, Dw2Inval
// Debug registers.
db0, Debug, 0, 0, Dw2Inval, Dw2Inval
db1, Debug, 0, 1, Dw2Inval, Dw2Inval
db2, Debug, 0, 2, Dw2Inval, Dw2Inval
db3, Debug, 0, 3, Dw2Inval, Dw2Inval
db4, Debug, 0, 4, Dw2Inval, Dw2Inval
db5, Debug, 0, 5, Dw2Inval, Dw2Inval
db6, Debug, 0, 6, Dw2Inval, Dw2Inval
db7, Debug, 0, 7, Dw2Inval, Dw2Inval
db8, Debug, RegRex, 0, Dw2Inval, Dw2Inval
db9, Debug, RegRex, 1, Dw2Inval, Dw2Inval
db10, Debug, RegRex, 2, Dw2Inval, Dw2Inval
db11, Debug, RegRex, 3, Dw2Inval, Dw2Inval
db12, Debug, RegRex, 4, Dw2Inval, Dw2Inval
db13, Debug, RegRex, 5, Dw2Inval, Dw2Inval
db14, Debug, RegRex, 6, Dw2Inval, Dw2Inval
db15, Debug, RegRex, 7, Dw2Inval, Dw2Inval
dr0, Debug, 0, 0, Dw2Inval, Dw2Inval
dr1, Debug, 0, 1, Dw2Inval, Dw2Inval
dr2, Debug, 0, 2, Dw2Inval, Dw2Inval
dr3, Debug, 0, 3, Dw2Inval, Dw2Inval
dr4, Debug, 0, 4, Dw2Inval, Dw2Inval
dr5, Debug, 0, 5, Dw2Inval, Dw2Inval
dr6, Debug, 0, 6, Dw2Inval, Dw2Inval
dr7, Debug, 0, 7, Dw2Inval, Dw2Inval
dr8, Debug, RegRex, 0, Dw2Inval, Dw2Inval
dr9, Debug, RegRex, 1, Dw2Inval, Dw2Inval
dr10, Debug, RegRex, 2, Dw2Inval, Dw2Inval
dr11, Debug, RegRex, 3, Dw2Inval, Dw2Inval
dr12, Debug, RegRex, 4, Dw2Inval, Dw2Inval
dr13, Debug, RegRex, 5, Dw2Inval, Dw2Inval
dr14, Debug, RegRex, 6, Dw2Inval, Dw2Inval
dr15, Debug, RegRex, 7, Dw2Inval, Dw2Inval
// Test registers.
tr0, Test, 0, 0, Dw2Inval, Dw2Inval
tr1, Test, 0, 1, Dw2Inval, Dw2Inval
tr2, Test, 0, 2, Dw2Inval, Dw2Inval
tr3, Test, 0, 3, Dw2Inval, Dw2Inval
tr4, Test, 0, 4, Dw2Inval, Dw2Inval
tr5, Test, 0, 5, Dw2Inval, Dw2Inval
tr6, Test, 0, 6, Dw2Inval, Dw2Inval
tr7, Test, 0, 7, Dw2Inval, Dw2Inval
// MMX and simd registers.
mm0, RegMMX, 0, 0, 29, 41
mm1, RegMMX, 0, 1, 30, 42
mm2, RegMMX, 0, 2, 31, 43
mm3, RegMMX, 0, 3, 32, 44
mm4, RegMMX, 0, 4, 33, 45
mm5, RegMMX, 0, 5, 34, 46
mm6, RegMMX, 0, 6, 35, 47
mm7, RegMMX, 0, 7, 36, 48
xmm0, RegXMM|Acc, 0, 0, 21, 17
xmm1, RegXMM, 0, 1, 22, 18
xmm2, RegXMM, 0, 2, 23, 19
xmm3, RegXMM, 0, 3, 24, 20
xmm4, RegXMM, 0, 4, 25, 21
xmm5, RegXMM, 0, 5, 26, 22
xmm6, RegXMM, 0, 6, 27, 23
xmm7, RegXMM, 0, 7, 28, 24
xmm8, RegXMM, RegRex, 0, Dw2Inval, 25
xmm9, RegXMM, RegRex, 1, Dw2Inval, 26
xmm10, RegXMM, RegRex, 2, Dw2Inval, 27
xmm11, RegXMM, RegRex, 3, Dw2Inval, 28
xmm12, RegXMM, RegRex, 4, Dw2Inval, 29
xmm13, RegXMM, RegRex, 5, Dw2Inval, 30
xmm14, RegXMM, RegRex, 6, Dw2Inval, 31
xmm15, RegXMM, RegRex, 7, Dw2Inval, 32
xmm16, RegXMM, RegVRex, 0, Dw2Inval, 67
xmm17, RegXMM, RegVRex, 1, Dw2Inval, 68
xmm18, RegXMM, RegVRex, 2, Dw2Inval, 69
xmm19, RegXMM, RegVRex, 3, Dw2Inval, 70
xmm20, RegXMM, RegVRex, 4, Dw2Inval, 71
xmm21, RegXMM, RegVRex, 5, Dw2Inval, 72
xmm22, RegXMM, RegVRex, 6, Dw2Inval, 73
xmm23, RegXMM, RegVRex, 7, Dw2Inval, 74
xmm24, RegXMM, RegVRex|RegRex, 0, Dw2Inval, 75
xmm25, RegXMM, RegVRex|RegRex, 1, Dw2Inval, 76
xmm26, RegXMM, RegVRex|RegRex, 2, Dw2Inval, 77
xmm27, RegXMM, RegVRex|RegRex, 3, Dw2Inval, 78
xmm28, RegXMM, RegVRex|RegRex, 4, Dw2Inval, 79
xmm29, RegXMM, RegVRex|RegRex, 5, Dw2Inval, 80
xmm30, RegXMM, RegVRex|RegRex, 6, Dw2Inval, 81
xmm31, RegXMM, RegVRex|RegRex, 7, Dw2Inval, 82
// AVX registers.
ymm0, RegYMM, 0, 0, Dw2Inval, Dw2Inval
ymm1, RegYMM, 0, 1, Dw2Inval, Dw2Inval
ymm2, RegYMM, 0, 2, Dw2Inval, Dw2Inval
ymm3, RegYMM, 0, 3, Dw2Inval, Dw2Inval
ymm4, RegYMM, 0, 4, Dw2Inval, Dw2Inval
ymm5, RegYMM, 0, 5, Dw2Inval, Dw2Inval
ymm6, RegYMM, 0, 6, Dw2Inval, Dw2Inval
ymm7, RegYMM, 0, 7, Dw2Inval, Dw2Inval
ymm8, RegYMM, RegRex, 0, Dw2Inval, Dw2Inval
ymm9, RegYMM, RegRex, 1, Dw2Inval, Dw2Inval
ymm10, RegYMM, RegRex, 2, Dw2Inval, Dw2Inval
ymm11, RegYMM, RegRex, 3, Dw2Inval, Dw2Inval
ymm12, RegYMM, RegRex, 4, Dw2Inval, Dw2Inval
ymm13, RegYMM, RegRex, 5, Dw2Inval, Dw2Inval
ymm14, RegYMM, RegRex, 6, Dw2Inval, Dw2Inval
ymm15, RegYMM, RegRex, 7, Dw2Inval, Dw2Inval
ymm16, RegYMM, RegVRex, 0, Dw2Inval, Dw2Inval
ymm17, RegYMM, RegVRex, 1, Dw2Inval, Dw2Inval
ymm18, RegYMM, RegVRex, 2, Dw2Inval, Dw2Inval
ymm19, RegYMM, RegVRex, 3, Dw2Inval, Dw2Inval
ymm20, RegYMM, RegVRex, 4, Dw2Inval, Dw2Inval
ymm21, RegYMM, RegVRex, 5, Dw2Inval, Dw2Inval
ymm22, RegYMM, RegVRex, 6, Dw2Inval, Dw2Inval
ymm23, RegYMM, RegVRex, 7, Dw2Inval, Dw2Inval
ymm24, RegYMM, RegVRex|RegRex, 0, Dw2Inval, Dw2Inval
ymm25, RegYMM, RegVRex|RegRex, 1, Dw2Inval, Dw2Inval
ymm26, RegYMM, RegVRex|RegRex, 2, Dw2Inval, Dw2Inval
ymm27, RegYMM, RegVRex|RegRex, 3, Dw2Inval, Dw2Inval
ymm28, RegYMM, RegVRex|RegRex, 4, Dw2Inval, Dw2Inval
ymm29, RegYMM, RegVRex|RegRex, 5, Dw2Inval, Dw2Inval
ymm30, RegYMM, RegVRex|RegRex, 6, Dw2Inval, Dw2Inval
ymm31, RegYMM, RegVRex|RegRex, 7, Dw2Inval, Dw2Inval
// AVX512 registers.
zmm0, RegZMM, 0, 0, Dw2Inval, Dw2Inval
zmm1, RegZMM, 0, 1, Dw2Inval, Dw2Inval
zmm2, RegZMM, 0, 2, Dw2Inval, Dw2Inval
zmm3, RegZMM, 0, 3, Dw2Inval, Dw2Inval
zmm4, RegZMM, 0, 4, Dw2Inval, Dw2Inval
zmm5, RegZMM, 0, 5, Dw2Inval, Dw2Inval
zmm6, RegZMM, 0, 6, Dw2Inval, Dw2Inval
zmm7, RegZMM, 0, 7, Dw2Inval, Dw2Inval
zmm8, RegZMM, RegRex, 0, Dw2Inval, Dw2Inval
zmm9, RegZMM, RegRex, 1, Dw2Inval, Dw2Inval
zmm10, RegZMM, RegRex, 2, Dw2Inval, Dw2Inval
zmm11, RegZMM, RegRex, 3, Dw2Inval, Dw2Inval
zmm12, RegZMM, RegRex, 4, Dw2Inval, Dw2Inval
zmm13, RegZMM, RegRex, 5, Dw2Inval, Dw2Inval
zmm14, RegZMM, RegRex, 6, Dw2Inval, Dw2Inval
zmm15, RegZMM, RegRex, 7, Dw2Inval, Dw2Inval
zmm16, RegZMM, RegVRex, 0, Dw2Inval, Dw2Inval
zmm17, RegZMM, RegVRex, 1, Dw2Inval, Dw2Inval
zmm18, RegZMM, RegVRex, 2, Dw2Inval, Dw2Inval
zmm19, RegZMM, RegVRex, 3, Dw2Inval, Dw2Inval
zmm20, RegZMM, RegVRex, 4, Dw2Inval, Dw2Inval
zmm21, RegZMM, RegVRex, 5, Dw2Inval, Dw2Inval
zmm22, RegZMM, RegVRex, 6, Dw2Inval, Dw2Inval
zmm23, RegZMM, RegVRex, 7, Dw2Inval, Dw2Inval
zmm24, RegZMM, RegVRex|RegRex, 0, Dw2Inval, Dw2Inval
zmm25, RegZMM, RegVRex|RegRex, 1, Dw2Inval, Dw2Inval
zmm26, RegZMM, RegVRex|RegRex, 2, Dw2Inval, Dw2Inval
zmm27, RegZMM, RegVRex|RegRex, 3, Dw2Inval, Dw2Inval
zmm28, RegZMM, RegVRex|RegRex, 4, Dw2Inval, Dw2Inval
zmm29, RegZMM, RegVRex|RegRex, 5, Dw2Inval, Dw2Inval
zmm30, RegZMM, RegVRex|RegRex, 6, Dw2Inval, Dw2Inval
zmm31, RegZMM, RegVRex|RegRex, 7, Dw2Inval, Dw2Inval
// Bound registers for MPX
bnd0, RegBND, 0, 0, Dw2Inval, Dw2Inval
bnd1, RegBND, 0, 1, Dw2Inval, Dw2Inval
bnd2, RegBND, 0, 2, Dw2Inval, Dw2Inval
bnd3, RegBND, 0, 3, Dw2Inval, Dw2Inval
// No Reg will make these registers rejected for all purposes except
// for addressing.  This saves creating one extra type for RIP/EIP.
rip, Qword, RegRex64, RegIP, Dw2Inval, 16
eip, Dword, RegRex64, RegIP, 8, Dw2Inval
// No Reg will make these registers rejected for all purposes except
// for addressing.
riz, Qword|BaseIndex, RegRex64, RegIZ, Dw2Inval, Dw2Inval
eiz, Dword|BaseIndex, 0, RegIZ, Dw2Inval, Dw2Inval
// fp regs.
st(0), FloatReg|Acc, 0, 0, 11, 33
st(1), FloatReg, 0, 1, 12, 34
st(2), FloatReg, 0, 2, 13, 35
st(3), FloatReg, 0, 3, 14, 36
st(4), FloatReg, 0, 4, 15, 37
st(5), FloatReg, 0, 5, 16, 38
st(6), FloatReg, 0, 6, 17, 39
st(7), FloatReg, 0, 7, 18, 40
// Pseudo-register names only used in .cfi_* directives
eflags, 0, 0, 0, 9, 49
rflags, 0, 0, 0, Dw2Inval, 49
fs.base, 0, 0, 0, Dw2Inval, 58
gs.base, 0, 0, 0, Dw2Inval, 59
tr, 0, 0, 0, 48, 62
ldtr, 0, 0, 0, 49, 63
// st0...7 for backward compatibility
st0, 0, 0, 0, 11, 33
st1, 0, 0, 1, 12, 34
st2, 0, 0, 2, 13, 35
st3, 0, 0, 3, 14, 36
st4, 0, 0, 4, 15, 37
st5, 0, 0, 5, 16, 38
st6, 0, 0, 6, 17, 39
st7, 0, 0, 7, 18, 40
fcw, 0, 0, 0, 37, 65
fsw, 0, 0, 0, 38, 66
mxcsr, 0, 0, 0, 39, 64