Network, Computer and Programming Resources

Instruction mmx - PXOR—Logical Exclusive OR

Performs a bitwise logical exclusive-OR (XOR) operation on the quadword source (second) and destination (first) operands and stores the result in the destination operand location. The source operand can be an MMX technology register or a quadword memory location; the destination operand must be an MMX technology register. Each bit of the result is 1 if the corresponding bits of the two operands are different; each bit is 0 if the corresponding bits of the operands are the same.