AMD-K6 datasheet(72/346 Pages) AMD

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Software Environment

Chapter 3

AMD-K6® Processor Data Sheet

20695H/0—March 1998

Preliminary Information

CMPSD mem32, mem32

A7h

vector

CMPXCHG mreg8, reg8

0Fh

B0h

11-xxx-xxx

vector

CMPXCHG mem8, reg8

0Fh

B0h

mm-xxx-xxx

vector

CMPXCHG mreg16/32, reg16/32

0Fh

B1h

11-xxx-xxx

vector

CMPXCHG mem16/32, reg16/32

0Fh

B1h

mm-xxx-xxx

vector

CMPXCH8B EDX:EAX

0Fh

C7h

11-xxx-xxx

vector

CMPXCH8B mem64

0Fh

C7h

mm-xxx-xxx

vector

CPUID

0Fh

A2h

vector

CWD/CDQ EDX, EAX

99h

vector

DAA

27h

vector

DAS

2Fh

vector

DEC EAX

48h

short

alu

DEC ECX

49h

short

alu

DEC EDX

4Ah

short

alu

DEC EBX

4Bh

short

alu

DEC ESP

4Ch

short

alu

DEC EBP

4Dh

short

alu

DEC ESI

4Eh

short

alu

DEC EDI

4Fh

short

alu

DEC mreg8

FEh

11-001-xxx

vector

DEC mem8

FEh

mm-001-xxx

long

load, alux, store

DEC mreg16/32

FFh

11-001-xxx

vector

DEC mem16/32

FFh

mm-001-xxx

long

load, alu, store

DIV AL, mreg8

F6h

11-110-xxx

vector

DIV AL, mem8

F6h

mm-110-xxx

vector

DIV EAX, mreg16/32

F7h

11-110-xxx

vector

DIV EAX, mem16/32

F7h

mm-110-xxx

vector

IDIV mreg8

F6h

11-111-xxx

vector

IDIV mem8

F6h

mm-111-xxx

vector

IDIV EAX, mreg16/32

F7h

11-111-xxx

vector

IDIV EAX, mem16/32

F7h

mm-111-xxx

vector

IMUL reg16/32, imm16/32

69h

11-xxx-xxx

vector

IMUL reg16/32, mreg16/32, imm16/32

69h

11-xxx-xxx

vector

Table 10. Integer Instructions (continued)

Instruction Mnemonic

First

Byte

Second

Byte

ModR/M

Byte

Decode

Type

RISC86®

Opcodes

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