Registers Keyword Table

Data Registers

EAX

extended accumulator register, bits 0-31

ord4

AX

accumulator register, bits 0-15

ord2

AH

accumulator register, bits 8-15

ord1

AL

accumulator register, bits 0-7

ord1

EBX

extended BX register, bits 0-31

ord4

BX

BX register, bits 0-15

ord2

BH

BX register, bits 8-15

ord 1

BL

BX register, bits 0-7

ord1

ECX

extended CX register, bits 0-31

ord4

CX

CX register, bits 0-15

ord2

CH

CX register, bits 8-15

ord1

CL

CX register, bits 0-7

ord1

EDX

extended DX register, bits 0-31

ord4

DX

DX register, bits 0-15

ord2

DH

DX register, bits 8-15

ord1

DL

DX register, bits 0-7

ord1

Pointer/Index Registers

EBP

extended base pointer

ord4

BP

base pointer

ord2

ESP

extended stack pointer

ord4

SP

stack pointer

ord2

EDI

extended destination index

ord4

DI

destination index

ord2

ESI

extended source index

ord4

SI

source index

ord2

Code Segment Registers

CS

code segment register

ord2

CSBAS

code segment register, base

ord4

CSLIM

code segment register, limit

ord4

CSAR

code segment register, access rights

ord1

Data Segment Registers

DS

data segment register

ord2

DSBAS

data segment register, base

ord4

DSLIM

data segment register, limit

ord4

DSAR

data segment register, access rights

ord1

Extra Segment Registers

ES

extra segment register

ord2

ESBAS

extra segment register, base

ord4

ESLIM

extra segment register, limit

ord4

ESAR

extra segment register, access rights

ord1

F Segment Registers

FS

F segment register

ord2

FSBAS

F segment register, base

ord4

FSLIM

F segment register, limit

ord4

FSAR

F segment register, access rights

ord1

G Segment Registers

GS

G segment register

ord2

GSBAS

G segment register, base

ord4

GSLIM

G segment register, limit

ord4

GSAR

G segment register, access rights

ord1

Stack Segment Registers

SS

stack segment register

ord2

SSBAS

stack segment register, base

ord4

SSLIM

stack segment register, limit

ord4

SSAR

stack segment register, access rights

byte

Instruction Pointer and Flags Registers

EIP

extended instruction pointer

ord4

IP

instruction pointer

ord2

EFLAGS

extended flags register

ord4

FLAGS

flags register

ord2

Control Registers

CR0

machine status register

ord4

CR1

Intel reserved

ord4

CR2

page fault linear address register

ord4

CR3

page directory base register

ord4

CR4

processor extensions register

ord4

System Address Registers

GDTBAS

global descriptor table, base

ord4

GDTLIM

global descriptor table, limit

ord2

LDTR

local descriptor table register

ord2

LDTBAS

local descriptor table, base

ord4

LDTLIM

local descriptor table, limit

ord2

LDTAR

local descriptor table, access rights

ord1

IDTBAS

interrupt descriptor table, base

ord4

IDTLIM

interrupt descriptor table, limit

ord2

TR

task state segment register

ord2

TSSBAS

task state segment, base

ord4

TSSLIM

task state segment, limit

ord4

TSSAR

task state segment, access rights

ord1

Debug Registers

DR0

debug register

ord4

DR1

debug register

ord4

DR2

debug register

ord4

DR3

debug register

ord4

DR4

debug register

ord4

DR5

debug register

ord4

DR6

debug register

ord4

DR7

debug register

ord4