parity logic:
MVI A,40H
OUT 0C0H
After power-on, the memory bytes will contain random values
(including the parity bit), and not all bytes will have correct
parity.
Before arming the parity logic, clear all bytes to
correct parity by storing into all bytes of RAM.
Note that the
standard HORIZON DOS initialization performs this function.
25
North Star 16K RAM BOARD