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MOVDQA

Moves aligned double-quadword data from a source to a destination.

The following table covers what the source and destinations can be.

DO NOT support LOCK

The memory operand MUST be aligned on a 16-byte boundary. If the linear address of the memory operand is not 16-byte aligned, the processor SHALL generate a general-protection exception (#GP). This instruction is available in 64-bit mode and compatibility mode.

Failure to ensure 16-byte alignment of the memory address will result in an immediate application crash via #GP. Use MOVDQU if the alignment of the memory region cannot be guaranteed at compile-time or runtime.