AMD Confidential
User Manual
September 12
th
, 2008
Appendix A
207
Instruction
Supported
Mnemonic
Opcode
Description
MOVZX
reg16
,
reg/mem8
0F B6 /r
Move the contents of an 8-bit
register or memory operand to a 16-
bit register with zero-extension.
MOVZX
reg32
,
reg/mem8
0F B6 /r
Move the contents of an 8-bit
register or memory operand to a 32-
bit register with zero-extension.
MOVZX
reg64
,
reg/mem8
0F B6 /r
Move the contents of an 8-bit
register or memory operand to a 64-
bit register with zero-extension.
MOVZX
reg32
,
reg/mem16
0F B7 /r
Move the contents of a 16-bit
register or memory operand to a 32-
bit register with zero-extension.
MOVZX
reg64
,
reg/mem16
0F B7 /r
Move the contents of a 16-bit
register or memory operand to a 64-
bit register with zero-extension.
MUL
reg/mem8
F6 /4
Multiplies an 8-bit register or
memory operand by the contents of the
AL register and stores the result in
the AX register.
MUL
reg/mem16
F7 /4
Multiplies a 16-bit register or
memory operand by the contents of the
AX register and stores the result in
the DX:AX register.
MUL
reg/mem32
F7 /4
Multiplies a 32-bit register or
memory operand by the contents of the
EAX register and stores the result in
the EDX:EAX register.
MUL
reg/mem64
F7 /4
Multiplies a 64-bit register or
memory operand by the contents of the
RAX register and stores the result in
the RDX:RAX register.
NEG
reg/mem8
F6 /3
Performs a tow’s complement negation
on an 8-bit register or memory
operand.
NEG
reg/mem16
F7 /3
Performs a tow’s complement negation
on a 16-bit register or memory
operand.
NEG
reg/mem32
F7 /3
Performs a tow’s complement negation
on a 32-bit register or memory
operand.
NEG
reg/mem64
F7 /3
Performs a tow’s complement negation
on a 64-bit register or memory
operand.
NOP
90
Performs no operation.
NOT
reg/mem8
F6 /2
Complements the bits in an 8-bit
register or memory operand.
NOT
reg/mem16
F7 /2
Complements the bits in a 16-bit
register or memory operand.
NOT
reg/mem32
F7 /2
Complements the bits in a 32-bit
register or memory operand.
NOT
reg/mem64
F7 /2
Complements the bits in a 64-bit
register or memory operand.
OR AL,
imm8
0C
ib
OR the contents of AL with an
immediate 8-bit value.
OR AX,
imm16
0D
iw
OR the contents of AX with an
immediate 16-bit value.
OR EAX,
imm32
0D
id
OR the contents of EAX with an
immediate 32-bit value.
OR RAX,
imm64
0D
id
OR the contents of RAX with an
immediate 64-bit value.
OR
reg/mem8
,
imm8
80 /1
ib
OR the contents of an 8-bit register
or memory operand and an immediate 8-
bit value.
OR
reg/mem16
,
imm16
81 /1
iw
OR the contents of a 16-bit register
or memory operand and an immediate
16-bit value.
OR
reg/mem32
,
imm32
81 /1
id
OR the contents of a 32-bit register
or memory operand and an immediate
32-bit value.
OR
reg/mem64
,
imm32
81 /1
id
OR the contents of a 64-bit register
or memory operand and a sign-extended
immediate 32-bit value.
OR
reg/mem16
,
imm8
83 /1
ib
OR the contents of a 16-bit register
or memory operand and a sign-extended
immediate 8-bit value.