
Chapter 3
Software Environment
89
23542A/0—September 2000
AMD-K6-2E+ Embedded Processor Data Sheet
Preliminary Information
PXOR mmreg, mem64
0Fh
EFh
mm-xxx-xxx
short
mload, meu
Notes:
1.
Bits 2, 1, and 0 of the modR/M byte select the integer register.
Table 15.
3DNow! Instructions
Instruction Mnemonic
Prefix
Byte(s)
0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
0Fh, 0Fh
Opcode
Byte
0Eh
BFh
BFh
1Dh
1Dh
AEh
AEh
9Eh
9Eh
B0h
B0h
90h
90h
A0h
A0h
A4h
A4h
94h
94h
B4h
B4h
96h
96h
A6h
A6h
B6h
B6h
A7h
ModR/M
Byte
Decode
Type
vector
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
short
RISC86
Operations
FEMMS
PAVGUSB mmreg1, mmreg2
PAVGUSB mmreg, mem64
PF2ID mmreg1, mmreg2
PF2ID mmreg, mem64
PFACC mmreg1, mmreg2
PFACC mmreg, mem64
PFADD mmreg1, mmreg2
PFADD mmreg, mem64
PFCMPEQ mmreg1, mmreg2
PFCMPEQ mmreg, mem64
PFCMPGE mmreg1, mmreg2
PFCMPGE mmreg, mem64
PFCMPGT mmreg1, mmreg2
PFCMPGT mmreg, mem64
PFMAX mmreg1, mmreg2
PFMAX mmreg, mem64
PFMIN mmreg1, mmreg2
PFMIN mmreg, mem64
PFMUL mmreg1, mmreg2
PFMUL mmreg, mem64
PFRCP mmreg1, mmreg2
PFRCP mmreg, mem64
PFRCPIT1 mmreg1, mmreg2
PFRCPIT1 mmreg, mem64
PFRCPIT2 mmreg1, mmreg2
PFRCPIT2 mmreg, mem64
PFRSQIT1 mmreg1, mmreg2
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
mm-xxx-xxx
11-xxx-xxx
meu
mload, meu
meu
mload, meu
meu
mload, meu
meu
mload, meu
meu
mload, meu
meu
mload, meu
meu
mload, meu
meu
mload, meu
meu
mload, meu
meu
mload, meu
meu
mload, meu
meu
mload, meu
meu
mload, meu
meu
Table 14. MMX Instructions (continued)
Instruction Mnemonic
Prefix
Byte(s)
First
Byte
ModR/M
Byte
Decode
Type
RISC86
Operations