AMD-K6-2E Datasheet, PDF (96/332 Pages) Advanced Micro Devices – AMD-K6™-2E Embedded Processor

AMD-K6™-2E Processor Data Sheet
Preliminary Information
22529B/0—January 2000
Table 13. Floating-Point Instructions (continued)
Instruction Mnemonic
FSUBRP ST(i), ST(0)¹
FTST
FUCOM
FUCOMP
FUCOMPP
FXAM
FXCH
FXTRACT
FYL2X
FYL2XP1
FWAIT
First Second
Byte Byte
DEh
D9h
E4h
DDh
DDh
DAh
E9h
D9h
E5h
D9h
D9h
F4h
D9h
F1h
D9h
F9h
9Bh
Notes:
1. The last three bits of the modR/M byte select the stack entry ST(i).
ModR/M
Byte
11-100-xxx
11-100-xxx
11-101-xxx
11-001-xxx
Decode RISC86
Type Operations
short float
short float
short float
short float
short float
short float
short float
vector
short float
short float
vector
Table 14. MMX™ Instructions
Instruction Mnemonic
EMMS
MOVD mmreg, mreg32¹
MOVD mmreg, mem32
MOVD mreg32, mmreg¹
MOVD mem32, mmreg
MOVQ mmreg1, mmreg2
MOVQ mmreg, mem64
MOVQ mmreg2, mmreg1
MOVQ mem64, mmreg
PACKSSDW mmreg1, mmreg2
PACKSSDW mmreg, mem64
PACKSSWB mmreg1, mmreg2
PACKSSWB mmreg, mem64
PACKUSWB mmreg1, mmreg2
PACKUSWB mmreg, mem64
PADDB mmreg1, mmreg2
PADDB mmreg, mem64
Prefix First
Byte(s) Byte
0Fh
77h
0Fh
6Eh
0Fh
6Eh
0Fh
7Eh
0Fh
7Eh
0Fh
6Fh
0Fh
6Fh
0Fh
7Fh
0Fh
7Fh
0Fh
6Bh
0Fh
6Bh
0Fh
63h
0Fh
63h
0Fh
67h
0Fh
67h
0Fh
FCh
0Fh
FCh
ModR/M
Byte
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
Decode RISC86
Type Operations
vector
short meu
short mload
short mstore, load
short mstore
short meu
short mload
short meu
short mstore
short meu
short mload, meu
short meu
short mload, meu
short meu
short mload, meu
short meu
short mload, meu
78
Software Environment
Chapter 3