3 ms·
Probably a bit smaller - and doesn't have a multiplier/divider (it does have the minimal MQ register instructions), and it has a minimal IO interface In some s
by Taniwha 4y ago
Probably a bit smaller - and doesn't have a multiplier/divider (it does have the minimal MQ register instructions), and it has a minimal IO interface
In some sense it's a toy because the TT internal clock is so slow and it needs to run 5 clocks/memory cycle because of the tiny bus interface - ideally in say TT 4 with ~16 bits each way in the IO bus we could actually make something that could outperform an original PDP8
You can find it here:
https://github.com/MoonbaseOtago/tt03-pdp8/blob/main/src/cpu.v https://github.com/MoonbaseOtago/tt03-pdp8/blob/main/src/cpu...