asm/reference

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VPMOVSWB



Moves bytes from a source to a destination, with sign-extension from 8-bit to 16-bit elements.

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

source destination(s)
xmm reg xmm reg
m16 xmm reg
xmm reg m16

DO NOT support LOCK

This instruction is only available in 64-bit mode. It requires the processor to support the AVX instruction set.

The destination must be aligned to 16 bytes if the memory operand is used, otherwise a general-protection fault may occur. Using the same register for both source and destination is permitted.