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KANDNQ

Performs a bitwise AND operation between a qword immediate and a qword destination, storing the result in the destination.

The table after the description covers what the source and destinations can be.

DO NOT support LOCK

This instruction is only available in 64-bit mode. It SHALL NOT be used in compatibility mode.

The immediate operand MUST be a qword. Ensure the destination memory operand is aligned to avoid performance penalties or faults depending on the processor's alignment check settings.