asm/reference

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KXORD



Performs a bitwise logical OR operation between the source and destination operands. The result is stored in the destination operand.

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

source destination(s)
reg reg
imm reg
#I mN

DO NOT support LOCK

This instruction is available only in 64-bit mode. It is NOT supported in compatibility mode.

The instruction operates on the lower 64 bits of the destination register. Use of the REX prefix is REQUIRED to address the 64-bit register. Failure to specify the correct operand size will result in an invalid opcode exception.