We have cheap controllers that run at 72Mhz or greater that can run I/O fast enough to run diagnostics on a 8080 or Z80 bus. The interface would be mostly buffers. No additional programmable devices are needed.
Dwight
I'd be interested in one of each. Thanks for reviving this project!
I was over-excited to see "8008" in the title -- perhaps a moderator can correct that?
Im curious how well the 3.3v CPLD drives 5v TTL CPU lines and downstream TTL logic.
Also keep in mind that old NMOS TTL only outputs ~3V anyway. Confused me quite a lot when doing my Z80 board.