A project log for A SUBLEQ CPU

Yet Another Minimalistic One Instruction CPU SUBLEQ means SUBtraction jump on Less than or EQual to zero.

agpcooperagp.cooper 07/23/2017 at 13:420 Comments


I build a simple compiler tool train for Subleq but the results are quite disappointing. Subleq is very memory inefficient:

So the minimum address space is 12 bits (16 bit would be more useful).

No chance of using a simple front panel for this CPU.

And it will be slow. Amazingly slow!

I have done some PCB and strip-board designs but input and output will need to be via an Arduino.

So overall a sad situation.

So I have decide to suspend this project.