Allison wrote:
I'd start with a 32bit PDP-8 (just add 20 more
bits on the right side).
and in another posting:
Me I'd do a stretch-8 for fun. though yours
sounds interesting too.
A Stretch-8 would require too much time spent on hacking -8 software for my
taste. Why not just build the equivalent of one of the DEC 18-bit family
members (PDP-4, -7, -9, or -15), since the PDP-5 and -8 are basically a 12-bit
version of the PDP-4. Then your project is at least compatible with
something, and can run some existing software (operating system, macro
assembler, Fortran).