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AMD Confidential
User Manual September 12
h
, 2008
214 Appendix A
Instruction
Supported
Mnemonic
Opcode
Description
SBB reg/mem64,imm32
81 /3 id
Subtract a sign-extended immediate
32-bit value from a 64-bit register
or memory location with borrow.
SBB reg/mem16,imm8
83 /3 ib
Subtract a sign-extended 8-bit
immediate value from a 16-bit
register or memory location with
borrow.
SBB reg/mem32,imm8
83 /3 ib
Subtract a sign-extended 8-bit
immediate value from a 32-bit
register or memory location with
borrow.
SBB reg/mem64,imm8
83 /3 ib
Subtract a sign-extended 8-bit
immediate value from a 64-bit
register or memory location with
borrow.
SBB reg/mem8,reg8
18 /r
Subtract the contents of an 8-bit
register from an 8-bit register or
memory location with borrow.
SBB reg/mem16,reg16
19 /r
Subtract the contents of a 16-bit
register from a 16-bit register or
memory location with borrow.
SBB reg/mem32,reg32
19 /r
Subtract the contents of a 32-bit
register from a 32-bit register or
memory location with borrow.
SBB reg/mem64,reg64
19 /r
Subtract the contents of a 64-bit
register from a 64-bit register or
memory location with borrow.
SBB reg8,reg/mem8
1A /r
Subtract the contents of an 8-bit
register or memory location from the
contents of an 8-bit register with
borrow.
SBB reg16,reg/mem16
1B /r
Subtract the contents of a 16-bit
register or memory location from the
contents of a 16-bit register with
borrow.
SBB reg32,reg/mem32
1B /r
Subtract the contents of a 32-bit
register or memory location from the
contents of a 32-bit register with
borrow.
SBB reg64,reg/mem64
1B /r
Subtract the contents of a 64-bit
register or memory location from the
contents of a 64-bit register with
borrow.
SCAS mem8
AE
Compare the contents of the AL
register with the byte at ES:rDI, and
then increment or decrement rDI.
SCAS mem16
AF
Compare the contents of the AX
register with the word at ES:rDI, and
then increment or decrement rDI.
SCAS mem32
AF
Compare the contents of the EAX
register with the doubleword at
ES:rDI, and then increment or
decrement rDI.
SCAS mem64
AF
Compare the contents of the RAX
register with the quadword at ES:rDI,
and then increment or decrement rDI.
SCASB
AE
Compare the contents of the AL
register with the byte at ES:rDI, and
then increment or decrement rDI.
SCASW
AF
Compare the contents of the AX
register with the word at ES:rDI, and
then increment or decrement rDI.
SCASD
AF
Compare the contents of the EAX
register with the doubleword at
ES:rDI, and then increment or
decrement rDI.
SCASQ
AF
Compare the contents of the RAX
register with the quadword at ES:rDI,
and then increment or decrement rDI.
SETO reg/mem8
0F 90
Set byte if overflow (OF = 1).
SETNO reg/mem8
0F 91
Set byte if not overflow (OF = 0).
SETB reg/mem8
0F 92
Set byte if below (CF = 1).
SETC reg/mem8
0F 92
Set byte if carry (CF = 1).
SETNAE reg/mem8
0F 92
Set byte if not above or equal (CF =
1).