A.5.162 MOVDQU: Move Unaligned Double Quadword
MOVDQU xmm1,xmm2/m128 ; F3 OF 6F /r [WILLAMETTE,SSE2]
MOVDQU xmm1/m128,xmm2 ; F3 OF 7F /r [WILLAMETTE,SSE2]
MOVDQU moves a double quadword from the source operand to the
destination operand. When the source or destination operand is a memory
location, the memory may be unaligned.
To move a double quadword to or from known aligned memory locations, use
the MOVDQA instruction (section A.5.161).