Instruction Dispatch and Execution Resources
197
22007E/0—November 1999
AMD Athlon™ Processor x86 Code Optimization
LOOPE/LOOPZ disp8
E1h
VectorPath
LOOPNE/LOOPNZ disp8
E0h
VectorPath
LSL reg16/32, mreg16/32
0Fh
03h
11-xxx-xxx
VectorPath
LSL reg16/32, mem16/32
0Fh
03h
mm-xxx-xxx VectorPath
LSS reg16/32, mem32/48
0Fh
B2h
mm-xxx-xxx VectorPath
LTR mreg16
0Fh
00h
11-011-xxx
VectorPath
LTR mem16
0Fh
00h
mm-011-xxx VectorPath
MOV mreg8, reg8
88h
11-xxx-xxx
DirectPath
MOV mem8, reg8
88h
mm-xxx-xxx
DirectPath
MOV mreg16/32, reg16/32
89h
11-xxx-xxx
DirectPath
MOV mem16/32, reg16/32
89h
mm-xxx-xxx
DirectPath
MOV reg8, mreg8
8Ah
11-xxx-xxx
DirectPath
MOV reg8, mem8
8Ah
mm-xxx-xxx
DirectPath
MOV reg16/32, mreg16/32
8Bh
11-xxx-xxx
DirectPath
MOV reg16/32, mem16/32
8Bh
mm-xxx-xxx
DirectPath
MOV mreg16, segment reg
8Ch
11-xxx-xxx
VectorPath
MOV mem16, segment reg
8Ch
mm-xxx-xxx VectorPath
MOV segment reg, mreg16
8Eh
11-xxx-xxx
VectorPath
MOV segment reg, mem16
8Eh
mm-xxx-xxx VectorPath
MOV AL, mem8
A0h
DirectPath
MOV EAX, mem16/32
A1h
DirectPath
MOV mem8, AL
A2h
DirectPath
MOV mem16/32, EAX
A3h
DirectPath
MOV AL, imm8
B0h
DirectPath
MOV CL, imm8
B1h
DirectPath
MOV DL, imm8
B2h
DirectPath
MOV BL, imm8
B3h
DirectPath
MOV AH, imm8
B4h
DirectPath
MOV CH, imm8
B5h
DirectPath
MOV DH, imm8
B6h
DirectPath
MOV BH, imm8
B7h
DirectPath
MOV EAX, imm16/32
B8h
DirectPath
MOV ECX, imm16/32
B9h
DirectPath
Table 19. Integer Instructions (Continued)
Instruction Mnemonic
First
Byte
Second
Byte
ModR/M
Byte
Decode
Type
Summary of Contents for Athlon Processor x86
Page 1: ...AMD Athlon Processor x86 Code Optimization Guide TM...
Page 12: ...xii List of Figures AMD Athlon Processor x86 Code Optimization 22007E 0 November 1999...
Page 16: ...xvi Revision History AMD Athlon Processor x86 Code Optimization 22007E 0 November 1999...
Page 202: ...186 Page Attribute Table PAT AMD Athlon Processor x86 Code Optimization 22007E 0 November 1999...
Page 252: ...236 VectorPath Instructions AMD Athlon Processor x86 Code Optimization 22007E 0 November 1999...
Page 256: ...240 Index AMD Athlon Processor x86 Code Optimization 22007E 0 November 1999...