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AMD Confidential
User Manual November 21
st
, 2008
198 Appendix A
Instruction
Supported
Mnemonic
Opcode
Description
IN AL,imm8
E4 ib
Input a byte from the port at the
address specified by imm8 and put it
into the AL register.
IN AX,imm8
E5 ib
Input a word from the port at the
address specified by imm8 and put it
into the AX register.
IN EAX,imm8
E5 ib
Input a doubleword from the port at
the address specified by imm8 and put
it into the EAX register.
IN AL,DX
EC
Input a byte from the port at the
address specified by the DX register
and put it into the AL register.
IN AX,DX
ED
Input a word from the port at the
address specified by the DX register
and put it into the AX register.
IN EAX,EDX
ED
Input a doubleword from the port at
the address specified by the EDX
register and put it into the EAX
register.
INC reg/mem8
FE /0
Increment the contents of an 8-bit
register or memory location by 1.
INC reg/mem16
FF /0
Increment the contents of a 16-bit
register or memory location by 1.
INC reg/mem32
FF /0
Increment the contents of a 32-bit
register or memory location by 1.
INC reg/mem64
FF /0
Increment the contents of a 64-bit
register or memory location by 1.
INC reg16
40 +rw
Increment the contents of a 16-bit
register by 1.
INC reg32
40 +rd
Increment the contents of a 32-bit
register by 1.
INS mem8,DX
6C
Input a byte from the port specified
by DX, put it into the memory
location specified in ES:rDI, and
then increment or decrement rDI.
INS mem16,DX
6D
Input a word from the port specified
by DX, put it into the memory
location specified in ES:rDI, and
then increment or decrement rDI.
INS mem32,DX
6D
Input a doubleword from the port
specified by DX, put it into the
memory location specified in ES:rDI,
and then increment or decrement rDI.
INSB
6C
Input a byte from the port specified
by DX, put it into the memory
location specified in ES:rDI, and
then increment or decrement rDI.
INSW
6D
Input a word from the port specified
by DX, put it into the memory
location specified in ES:rDI, and
then increment or decrement rDI.
INSD
6D
Input a doubleword from the port
specified by DX, put it into the
memory location specified in ES:rDI,
and then increment or decrement rDI.
INT imm8
CD ib
Calls interrupt service routine
specified by interrupt vector imm8.
INTO
CE
Calls overflow exception if the
overflow flag is set.
JO rel8off
80 cb
Jump if overflow (OF = 1).
JO rel16off
0F 80 cw
Jump if overflow (OF = 1).
JO rel32off
0F 80 cd
Jump if overflow (OF = 1).
JNO rel8off
71 cb
Jump if not overflow (OF = 0)
JNO rel16off
0F 81 cw
Jump if not overflow (OF = 0)
JNO rel32off
0F 81 cd
Jump if not overflow (OF = 0)