AMD Confidential
User Manual
September 12
h
, 2008
218
Appendix A
Instruction
Supported
Mnemonic
Opcode
Description
SUB
reg/mem16
,
imm16
81 /5
iw
Subtract an immediate 16-bit value
from a 16-bit destination register or
memory location.
SUB
reg/mem32
,
imm32
81 /5
id
Subtract an immediate 32-bit value
from a 32-bit destination register or
memory location.
SUB
reg/mem64
,
imm32
81 /5
id
Subtract a sign-extended immediate
32-bit
value
from
a
64-bit
destination
register
or
memory
location.
SUB
reg/mem16
,
imm8
83 /5
ib
Subtract a sign-extended immediate 8-
bit value from a 16-bit register or
memory location.
SUB
reg/mem32
,
imm8
83 /5
ib
Subtract a sign-extended immediate 8-
bit value from a 32-bit register or
memory location.
SUB
reg/mem64
,
imm8
83 /5
ib
Subtract a sign-extended immediate 8-
bit value from a 64-bit register or
memory location.
SUB
reg/mem8
,
reg8
28 /r
Subtract the contents of an 8-bit
register from an 8-bit destination
register or memory location.
SUB
reg/mem16
,
reg16
29 /r
Subtract the contents of a 16-bit
register from a 16-bit destination
register or memory location.
SUB
reg/mem32
,
reg32
29 /r
Subtract the contents of a 32-bit
register from a 32-bit destination
register or memory location.
SUB
reg/mem64
,
reg64
29 /r
Subtract the contents of a 64-bit
register from a 64-bit destination
register or memory location.
SUB
reg8
,
reg/mem8
2A /r
Subtract the contents of an 8-bit
register or memory operand from an 8-
bit destination register.
SUB
reg16
,
reg/mem16
2B /r
Subtract the contents of a 16-bit
register or memory operand from a 16-
bit destination register.
SUB
reg32
,
reg/mem32
2B /r
Subtract the contents of a 32-bit
register or memory operand from a 32-
bit destination register.
SUB
reg64
,
reg/mem64
2B /r
Subtract the contents of a 64-bit
register or memory operand from a 64-
bit destination register.
TEST AL,
imm8
AB
ib
AND an immediate 8-bit value with the
contents of the AL register and set
rFLAGS to reflect the result.
TEST AX,
imm16
A9
iw
AND an immediate 16-bit value with
the contents of the AX register and
set rFLAGS to reflect the result.
TEST EAX,
imm32
A9
id
AND an immediate 32-bit value with
the contents of the EAX register and
set rFLAGS to reflect the result.
TEST RAX,
imm32
A9
id
AND a sign-extened immediate 32-bit
value with the contents of the RAX
register and set rFLAGS to reflect
the result.
TEST
reg/mem8
,
imm8
F6 /0
ib
AND an immediate 8-bit value with the
contents of an 8-bit register or
memory operand and set rFLAGS to
reflect the result.
TEST
reg/mem16
,
imm16
F7 /0
iw
AND an immediate 16-bit value with
the contents of a 16-bit register or
memory operand and set rFLAGS to
reflect the result.
TEST
reg/mem32
,
imm32
F7 /0
id
AND an immediate 32-bit value with
the contents of a 32-bit register or
memory operand and set rFLAGS to
reflect the result.
TEST
reg/mem64
,
imm32
F7 /0
id
AND a sign-extened immediate 32-bit
value with the contents of a 64-bit
register or memory operand and set
rFLAGS to reflect the result.
TEST
reg/mem8
,
reg8
84 /r
AND the contents of an 8-bit register
with the contents of an 8-bit
register or memory operand and set
rFLAGS to reflect the result.