[NBLUG/talk] Commodore nostalgia
Bruce Schadel
schadel at sonic.net
Wed May 13 14:06:01 PDT 2009
I've been lurking on this list for years for no good reason other than
to keep me humble. I bought my stepson a TI-99 in the early '80s and
taught him hex arithmetic. He soon was creating sprites and games and is
now a computer professional.
I was recently laid off from a large company, but I wasn't too unhappy
to leave with severance pay after 36 years. The company has a pair of
scanning electron microscopes specialized for measuring features on
3-inch semiconductor wafers. Those machines are almost irreplaceable,
but they are controlled by Japanese 680x0-based computers running
CP/M-68K. Data interchange is via 8-inch floppy.
There is a professor out there who has written a PC-based emulator for
CP/M-68K. It should be possible therefore to replace the SORD machines
with PCs. A few obstacles remain. One is to get files off the big
floppies. I think they can then be converted to S-record format (if they
are not already) and/or reverse assembled. Secondly, the emulator does
not include serial IO--that would have to be added. Third, the file that
functions as a BIOS would have to rewritten and compiled.
I wish I'd had time to devote/waste on that project. I mention it now in
case one of you, filled with nostalgia for character-oriented screens
and tiny OSes feels like moonlighting. I suppose I should attempt it
myself now that I'm retired, but I'm not sure I'm up to it. I'm just an
electronics/vacuum technician, not a computer professional, and I have a
lot of other things to attend to just now. As this is pretty OT, contact
me off-list.
Bruce Schadel
"The secret of life is self-delusion"
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