21 Aug
2008
21 Aug
'08
3:12 p.m.
bfranchuk at jetnet.ab.ca wrote:
I have to some day get a REAL terminal (Hardware) so I
can get my
PDP 8 clone runing with the right feel. TTL and BIT Slice design I can
handle but software for a small machine is out of my ball park.
I wrote a PDP8 emulator (I must try and find the tarball again). It's
not exactly like a *real* PDP8, because the emulation was taken from the
information in "Introduction to Programming" as mentioned a few months
ago on the list.
So, it's possibly not entirely bug-compatible with any "real" PDP8 that
ever existed, but guess what? It's *my* implementation of it. It's how
I would have built a PDP8, and it runs some PDP8 software pretty well.
Running ODT shook out a couple of bugs that sprang from faulty
assumptions about how things happened inside.
Maybe my next attempt at it will be better. Maybe it will support DF32s
and actually boot OS/8.
Gordon