< Take a PIC17C42. This chip executes a respectable number of
< instructions/sec out of external memory. Link it up to some EPROMs - 16
< bits wide for the PIC instruction and enough extra bits to control the
< data path + rest of the homebrew processor. The PIC is not going to
I did that in 1980 using a 8048, slower but the same idea.
Allison