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AMD 64-Bit Technology - ECE User Home Pages

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26568—Rev. 3.02—August 2002<br />

<strong>AMD</strong> <strong>64</strong>-<strong>Bit</strong> <strong>Technology</strong><br />

MOVMSKPD<br />

Extract Packed Double-Precision Floating-Point<br />

Sign Mask<br />

Moves the sign bits of two packed double-precision floating-point values in an XMM<br />

register to the two low-order bits of a 32-bit general-purpose register, with zeroextension.<br />

Mnemonic Opcode Description<br />

MOVMSKPD reg32, xmm 66 0F 50 /r Move sign bits in an XMM register to a 32-bit general-purpose<br />

register.<br />

reg32<br />

xmm<br />

31<br />

1<br />

0<br />

127 63 0<br />

0<br />

copy sign<br />

copy sign<br />

movmskpd.eps<br />

Related Instructions<br />

MOVMSKPS, PMOVMSKB<br />

rFLAGS Affected<br />

None<br />

MXCSR Flags Affected<br />

None<br />

MOVMSKPD 165

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