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KNOTD

Performs a bitwise logical NOT operation on the doubleword operand and stores the result in the destination operand.

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

DO NOT support LOCK

This instruction is only available in 32-bit mode or in compatibility mode when operating on 32-bit registers/memory. It SHALL NOT be used in 64-bit mode for 64-bit operands; for quadword operations, KNOTQ MUST be used instead.

Ensure the memory operand is aligned to a 4-byte boundary to avoid performance degradation or alignment exceptions depending on the processor configuration. This instruction does not affect any EFLAGS register bits.