AMD 4.4.5 Loop rel8off, Loope rel8off, Loopz rel8off, MOV reg/mem8,reg8, MOV reg/mem16,reg16

AMD Confidential

November 21st, 2008

User Manual

Instruction

Supported

Mnemonic

Opcode

Description

LODSD

AD

Load

doubleword at

DS:rSI

into

EAX

and then increment or decrement rSI.

LODSQ

AD

Load

quadword

at

DS:rSI

into RAX

and

then increment or decrement rSI.

LOOP rel8off

E2

cb

Decrement rCX and then jump short if

rCX is not 0.

LOOPE rel8off

E1

cb

Decrement rCX and then jump short if

rCX is not 0 and ZF is 1.

LOOPNE rel8off

E0

cb

Decrement rCX and then jump short if

rCX is not 0 and ZF is 0.

LOOPNZ rel8off

E0

cb

Decrement rCX and then jump short if

rCX is not 0 and ZF is 0.

LOOPZ rel8off

E1

cb

Decrement rCX and then jump short if

rCX is not 0 and ZF is 1.

MFENCE

0F

AE F0

Force strong ordering of (serialized)

load and store operations.

Move

the

contents

of

an

8-bit

MOV reg/mem8,reg8

88

/r

register

to

an

8-bit

destination

register or memory operand.

Move

the

contents

of

a

16-bit

MOV reg/mem16,reg16

89

/r

register

to

a

16-bit

destination

register or memory operand.

Move

the

contents

of

a

32-bit

MOV reg/mem32,reg32

89

/r

register

to

a

32-bit

destination

register or memory operand.

Move

the

contents

of

a

64-bit

MOV reg/mem64,reg64

89

/r

register

to

a

64-bit

destination

register or memory operand.

Move

the

contents

of

an

8-bit

MOV reg8,reg/mem8

8A

/r

register

or

memory operand

to

an

8-

bit destination register.

Move

the

contents

of

a

16-bit

MOV reg16,reg/mem16

8B

/r

register

or

memory operand

to

a

16-

bit destination register.

Move

the

contents

of

a

32-bit

MOV reg32,reg/mem32

8B

/r

register

or

memory operand

to

a

32-

bit destination register.

Move

the

contents

of

a

64-bit

MOV reg64,reg/mem64

8B

/r

register

or

memory operand

to

a

64-

bit destination register.

Move the contents of a segment

MOV reg16/32/64/mem16,segReg

8C

/r

register to a 16-bit, 32-bit, or 64-

bit destination register or to a 16-

bit memory operand.

Move

the

contents

of

a

16-bit

MOV segReg,reg/mem16

8E

/r

register

or

memory

operand

to

a

segment register.

MOV AL,moffset8

A0

Move 8-bit data at a specified memory

offset to the AL register.

MOV AX,moffset16

A1

Move

16-bit

data

at

a

specified

memory offset to the AX register.

MOV EAX,moffset32

A1

Move

32-bit

data

at

a

specified

memory offset to the EAX register.

MOV RAX,moffset64

A1

Move

64-bit

data

at

a

specified

memory offset to the RAX register.

MOV moffset8,AL

A2

Move

the

contents

of

the

AL

register

to an 8-bit memory offset.

MOV moffset16,AX

A3

Move

the

contents

of

the

AX

register

to a 16-bit memory offset.

MOV moffset32,EAX

A3

Move the contents of the EAX register

to a 32-bit memory offset.

MOV moffset64,RAX

A3

Move the contents of the RAX register

to a 64-bit memory offset.

MOV reg8,imm8

B0

+rb

Move an 8-bit immediate value into an

8-bit register.

MOV reg16,imm16

B8

+rw

Move a 16-bit immediate value into a

16-bit register.

202 Appendix A