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AMD 64-Bit Technology - ECE User Home Pages

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<strong>AMD</strong> <strong>64</strong>-<strong>Bit</strong> <strong>Technology</strong> 26568—Rev. 3.02—August 2002<br />

POR<br />

Packed Logical <strong>Bit</strong>wise OR<br />

Performs a bitwise logical OR of the values in the first and second source operands<br />

and writes the result in the destination (first source). The first source/destination<br />

operand is an XMM register and the second source operand is another XMM register<br />

or 128-bit memory location.<br />

Mnemonic Opcode Description<br />

POR xmm1, xmm2/mem128 66 0F EB /r Performs bitwise logical OR of values in an XMM register and in<br />

another XMM register or 128-bit memory location and writes the<br />

result in the destination XMM register.<br />

xmm1<br />

xmm2/mem128<br />

127 0 127 0<br />

OR<br />

por-128.eps<br />

Related Instructions<br />

PAND, PANDN, PXOR<br />

rFLAGS Affected<br />

None<br />

MXCSR Flags Affected<br />

None<br />

272 POR

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