參數(shù)資料
型號： 20726
英文描述： 3DNow!? Technology Manual AMD-K6 Processor Multimedia Technology
中文描述： 3DNow??？技術(shù)手冊的AMD - K6處理器多媒體技術(shù)
文件頁數(shù)： 51/120頁
文件大小： 1284K
代理商： 20726
MMX Instruction Set
45
20726D/0—January 2000
AMD-K6 MMX Enhanced Processor Multimedia Technology
Preliminary Information
PANDN
mnemonic
opcode
description
PANDN mmreg1, mmreg2/mem64 0F DFh
Invert a 64-bit value, then AND the inverted value and a 64-bit
value in memory or an MMX register
Privilege:
Registers Affected:
Flags Affected:
Exceptions Generated:
none
MMX
none
The PANDN instruction first operates on the 64-bit destination operand (an MMX
register) to complete a bitwise logical NOT, inverting each bit. This operation changes
1 bits to 0 bits and 0 bits to 1 bits, storing the results in the destination operand. The
inverted 64-
bit destination operand is then logically AND’d with the 64-bit source
operand (an MMX register or a 64-bit memory operand) to complete the PANDN
operation.
If corresponding bits in the source operand and the inverted destination operand are
both 1, the resulting bit is 1 in the destination. If either bit in the source operand or
the inverted destination operand is 0, the resulting bit is 0 in the destination.
The PANDN instruction can be used to extract alternate operands from packed fields
based on the inverse of the masks that are produced by the compare instructions—
PCMPEQ and PCMPGT. This technique can eliminate branch prediction overhead in
MMX routines.
Exception
Invalid opcode (6)
Device not available (7)
Real
X
X
Virtual
8086
X
X
Protected Description
X
X
The emulate MMX instruction bit (EM) of the control register (CR0) is set to 1.
Save the floating-point or MMX state if the task switch bit (TS) of the control
register (CR0) is set to 1.
During instruction execution, the stack segment limit was exceeded.
During instruction execution, the effective address of one of the segment
registers used for the operand points to an illegal memory location.
One of the instruction data operands falls outside the address range 00000h
to 0FFFFh.
A page fault resulted from the execution of the instruction.
An exception is pending due to the floating-point execution unit.
Stack exception (12)
General protection (13)
X
X
Segment overrun (13)
X
X
Page fault (14)
Floating-point exception
pending (16)
Alignment check (17)
X
X
X
X
X
X
X
An unaligned memory reference resulted from the instruction execution,
and the alignment mask bit (AM) of the control register (CR0) is set to 1.
(In Protected Mode, CPL = 3.)
相關(guān)PDF資料
PDF描述
20736 Enhanced Am486DX Family Data Sheet? 1.87MB (PDF)
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208-501-21-38 LED TELEFONSOCKEL T6.8 12V ROT
208-521-21-38 LED TELEFONSOCKEL T6.8 12V GELB
208-532-21-38 LED TELEFONSOCKEL T6.8 12V GRUEN
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
20727 制造商:Schneider Electric 功能描述:CIRCUIT BREAKER DECLIC 20A 制造商:Schneider Electric 功能描述:CIRCUIT BREAKER 1 POLE + NEUTRAL 20 A
20728 制造商:Schneider Electric 功能描述:CIRCUIT BREAKER 1 POLE + NEUTRAL 25 A
207289-000 制造商:TE Connectivity 功能描述:CE-14-06000-P-ABRAS-WHEEL 制造商:TE Connectivity 功能描述:CE-14-06000-P-ABRAS-WHEEL - Bulk
20729 制造商:Schneider Electric 功能描述:CIRCUIT BREAKER DECLIC 32A 制造商:Schneider Electric 功能描述:CIRCUIT BREAKER 1 POLE + NEUTRAL 32 A
207292-1 功能描述:標(biāo)準(zhǔn)環(huán)形連接器 CPC RECP 17-16 RoHS:否 制造商:Hirose Connector 系列:EM-W 產(chǎn)品類型:Accessories 位置/觸點數(shù)量:1 觸點類型: 觸點電鍍: 安裝風(fēng)格:Cable 外殼材質(zhì): 端接類型:Clamp 電壓額定值:
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