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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 />

SQRTPD<br />

Square Root Packed Double-Precision<br />

Floating-Point<br />

Computes the square root of each of the two packed double-precision floating-point<br />

values in an XMM register or 128-bit memory location and writes the result in the<br />

corresponding quadword of another XMM register. Taking the square root of +infinity<br />

returns +infinity.<br />

Mnemonic Opcode Description<br />

SQRTPD xmm1, xmm2/mem128 66 0F 51 /r Computes square roots of packed double-precision floatingpoint<br />

values in an XMM register or 128-bit memory location and<br />

writes the result in the destination XMM register.<br />

xmm1<br />

xmm2/mem128<br />

127 <strong>64</strong> 63 0<br />

127 <strong>64</strong> 63 0<br />

square root<br />

square root<br />

sqrtpd.eps<br />

Related Instructions<br />

RSQRTPS, RSQRTSS, SQRTPS, SQRTSD, SQRTSS<br />

rFLAGS Affected<br />

None<br />

356 SQRTPD

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