15 Mar
2005
15 Mar
'05
3:28 p.m.
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