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VPMASKMOV

Moves a mask of bytes from a source to a destination based on a mask register. For each byte in the source, the corresponding bit in the mask register determines whether the byte is copied to the destination; if the bit is 0, the destination byte remains unchanged.

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

DO NOT support LOCK

This instruction SHALL only be executed in 64-bit mode or 32-bit mode. It REQUIRES the AVX instruction set to be enabled.

To avoid undefined behavior or general protection faults, the memory operand m16 MUST be aligned to a 16-byte boundary. Failure to ensure alignment SHALL result in an alignment check exception if alignment checking is enabled.