參數(shù)資料
型號(hào): 20726
英文描述: 3DNow!? Technology Manual AMD-K6 Processor Multimedia Technology
中文描述: 3DNow!?技術(shù)手冊(cè)的AMD - K6處理器多媒體技術(shù)
文件頁數(shù): 94/120頁
文件大?。?/td> 1284K
代理商: 20726
88
MMX Instruction Set
AMD-K6 MMX Enhanced Processor Multimedia Technology
20726D/0—January 2000
Preliminary Information
Functional Illustration of the PSUBSB Instruction
The following list explains the functional illustration of the PSUBSB instruction:
I
The signed 8-bit positive value 0Fh is subtracted from the signed 8-bit negative
value 82h, and the result saturates to 80h because it is less than 80h, the smallest
possible signed 8-bit value.
The signed 8-bit negative value C1h is subtracted from the signed 8-bit positive
value 42h, and the result saturates to 7Fh because it is greater than 7Fh, the
largest possible signed 8-bit value.
All the remaining operations are simple signed subtraction with no saturation.
I
I
Related Instructions
See the PSUBB instruction.
See the PSUBD instruction.
See the PSUBW instruction.
See the PSUBSW instruction.
See the PSUBUSB instruction.
See the PSUBUSW instruction.
=
=
=
=
=
=
=
=
mmreg2/mem64
mmreg1
mmreg1
82h
0Fh
80h
9Ah
A8h
F2h
70h
07h
F7h
10h
44h
2Ch
77h
14h
63h
42h
C1h
7Fh
53h
ECh
67h
D2h
88h
4Ah
63
63
63
0
0
0
Indicates a saturated value
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