Parity is cheap to calculate in hardware but much more expensive to do purely in software. See https://stackoverflow.com/questions/25707130/what-is-the-purpose-

Parity is cheap to calculate in hardware but much more expensive to do purely in software. See https://stackoverflow.com/questions/25707130/what-is-the-purpose-of-the-parity-flag-on-a-cpu https://stackoverflow.com/questions/25707130/what-is-the-pur...