That would definitely be the ideal situation for machines with front panels like the IMSAI & Altair. I, for instance, have 2 IMSAI chassis's but don't have an 8080 CPU board to go with them. I looked at the original design of Josh's as a good way to demo the IMSAI and play with front panel operation. I have obtained 2 Cromemco ZPU boards which support the front panel but I admit that I would also like a 8080 board for these machines. At some point I also would like to demo loading Microsoft 4k Basic from paper tape and as far as I know Altair 4k tape Basic will not run on a Z-80 because of the differences in how the 8080 & Z-80 handle the parity flag. If an 8080 replacement board is created which has full access to the bus, it would be fantastic. Unfortunately, I have no background in design so I would be very grateful with anything that can be done in this area.
On 8/7/2013 1:16 PM, John Monahan wrote: