Parity Checking in CPUs (was: Byte sizes...

[Eric Smith]

river wrote:
> Yes, the 8080/8085/8086 series chips did parity checking. The PSW had a
> flag for odd/even parity. Naturally, the Z80, being a superset of the 8080,
> also had this ability.

In that regard, the Z80 is not a proper superset of the 8080.  The
parity flag is usurped to act as an overflow flag after arithmetic
operations.  It is still partity after moves and logical operations.

Eric