On 4/22/24 11:09, Bill Gunshannon via cctalk wrote: > > Following along this line of thought but also in regards all our > other small CPUs.... > > Would it not be possible to use something like a Blue Pill to make > a small board (small enough to actually fit in the CPU socket) that > emulated these old CPUs? Definitely enough horse power just wondered > if there was enough room for the microcode.
Blue pills are so yesterday! There are far more small-footprint MCUs out there. More RAM than any Z80 ever had as well as lots of flash for the code as well as pipelined 32-bit execution at eye-watering (relative to the Z80) speeds. Could it emulate a Z80? I don't see any insurmountable obstacles to that. Could it be cycle- and timing- accurate? That's a harder one to predict, but probably. But I'd wonder what the point was. There are still lots of Z80s out there in captivity. --Chuck
