I have so many Model T around here-- too many! One of the reasons is for testing, but another reason is because I have different computers for different use cases.
For example, I have an M100 set up for CP/M using an NSC800 CPU using REXCPM, and of course I have a normal M100 with 80C85 CPU again with REXCPM. So, I've decided my next widget is going to be a dual CPU card for M100, so I can have Z80-based CP/M and normal M100 in the same box! Here is my proto board. It uses a great big CPLD to interface and manage the switching between the two processors. It also will support dual clock rates because... why not. I'll post updates as this progresses... Steve [image: image.png]
