instruction that compares 2 64 bit
values for inequality
, bytewise. There is no "PCMPLT?" instruction, because you can just flip the order of the operands to the "PCMPGT?" instructions.
Note: unlike integer comparison operators, MMX comparison operators do not affect any flags
Each byte of the destination register is set to all 1's
if it was greater than the corresponding
byte of the source register. Otherwise, it is set to all zeros.
See also: PCMPGTB