AMD 4.4.5 user manual 213

AMD Confidential

November 21st, 2008

User Manual

Instruction

Supported

Mnemonic

Opcode

Description

Compare the contents of the RAX

SCAS mem64

AF

register with the quadword at ES:rDI,

and then increment or decrement rDI.

Compare the contents of the AL

SCASB

AE

register with the byte at ES:rDI, and

then increment or decrement rDI.

Compare the contents of the AX

SCASW

AF

register with the word at ES:rDI, and

then increment or decrement rDI.

Compare the contents of the EAX

SCASD

AF

register

with

the

doubleword

at

ES:rDI,

and

then

increment

or

decrement rDI.

Compare the contents of the RAX

SCASQ

AF

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).

SETNB reg/mem8

0F

93

Set byte if not below (CF = 0).

SETNC reg/mem8

0F

93

Set byte if not carry (CF = 0).

SETAE reg/mem8

0F

93

Set byte if above or equal (CF = 0).

SETZ reg/mem8

0F

94

Set byte if zero (ZF = 1).

SETE reg/mem8

0F

94

Set byte if equal (ZF = 1).

SETNZ reg/mem8

0F

95

Set byte if not zero (ZF = 0).

SETNE reg/mem8

0F

95

Set byte if not equal (ZF = 0).

SETBE reg/mem8

0F

96

Set byte if below or equal (CF = 1 or

ZF = 1).

SETNA reg/mem8

0F

96

Set byte if not above (CF = 1 or ZF =

1).

SETNBE reg/mem8

0F

97

Set

byte

if

not

below

or

equal

(CF

=

0 and ZF = 0).

SETA reg/mem8

0F

97

Set

byte

if

above (CF =

0 and

ZF

=

0).

SETS reg/mem8

0F

98

Set byte if sign (SF = 1).

SETNS reg/mem8

0F

99

Set byte if not sign (SF = 0).

SETP reg/mem8

0F

9A

Set byte if parity (PF = 1).

SETPE reg/mem8

0F

9A

Set byte if parity even (PF = 1).

SETNP reg/mem8

0F

9B

Set byte if not parity (PF = 0).

SETPO reg/mem8

0F

9B

Set byte if parity odd (PF = 0).

SETL reg/mem8

0F

9C

Set byte if less (SF <> OF).

SETNGE reg/mem8

0F

9C

Set

byte

if

not

greater or equal (SF

<> OF).

SETNL reg/mem8

0F

9D

Set byte if not less (SF =OF).

SETGE reg/mem8

0F

9D

Set

byte

if

greater

or equal

(SF

=

OF).

SETLE reg/mem8

0F

9E

Set

byte

if

less or equal

(ZF

=

1

or

SF <> OF).

SETNG reg/mem8

0F

9E

Set byte if not greater (ZF = 1 or SF

<> OF).

SETNLE reg/mem8

0F

9F

Set byte if not less or equal (ZF = 0

and SF = OF).

SETG reg/mem8

0F

9F

Set

byte

if

greater (ZF =

0 and

SF

=

OF).

SFENCE

0F

AE F8

Force strong ordering of (serialized)

store operations.

SHL reg/mem8,1

D0

/4

Shift an

8-bit

register

or

memory

location left 1 bit.

Appendix A 213