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KANDW

Performs a bitwise AND operation on a word-sized operand and a destination, then writes the result to the destination.

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

DO NOT support LOCK

This instruction is only available in 64-bit mode. It is not supported in compatibility mode or 32-bit mode.

The operand size is fixed to word (2 bytes). Using a different operand size specifier will result in an invalid operation. The instruction does not affect any EFLAGS register bits.