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AMD x86-64 Architecture Programmer's Manual, Volume 4, 128-Bit ...

AMD x86-64 Architecture Programmer's Manual, Volume 4, 128-Bit ...

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<strong>AMD</strong><strong>64</strong> Technology 26568—Rev. 3.05—September 2003<br />

MOVDQA Move Aligned Double Quadword<br />

Moves an aligned <strong>128</strong>-bit (double quadword) value:<br />

� from an XMM register or <strong>128</strong>-bit memory location to another XMM register, or<br />

� from an XMM register to a <strong>128</strong>-bit memory location or another XMM register.<br />

Mnemonic Opcode Description<br />

MOVDQA xmm1, xmm2/mem<strong>128</strong> 66 0F 6F /r Moves <strong>128</strong>-bit value from an XMM register or <strong>128</strong>-bit memory<br />

location to the destination XMM register.<br />

MOVDQA xmm1/mem<strong>128</strong>, xmm2 66 0F 7F /r Moves <strong>128</strong>-bit value from an XMM register to the destination<br />

XMM register or <strong>128</strong>-bit memory location.<br />

A memory operand that is not aligned on a 16-byte boundary causes a generalprotection<br />

exception.<br />

Related Instructions<br />

MOVD, MOVDQU, MOVDQ2Q, MOVQ, MOVQ2DQ<br />

rFLAGS Affected<br />

None<br />

xmm1 xmm2/mem<strong>128</strong><br />

127 0<br />

150 MOVDQA<br />

127 0<br />

copy<br />

xmm1/mem<strong>128</strong> xmm2<br />

127 0<br />

127 0<br />

copy<br />

movdqa.eps

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