__cmpb

Purpose

Compare Bytes

Compares each of the eight bytes of source1 with the corresponding byte of source2. If byte i of source1 and byte i of source2 are equal, 0xFF is placed in the corresponding byte of the result; otherwise, 0x00 is placed in the corresponding byte of the result.

Prototype

long long __cmpb (long long source1, long long source2);

Usage

Valid only when -qarch is set to target POWER6™ and POWER7 processors.