MIT provides MULTICS source and documentation (DPS-8 simulation)
Roy J. Tellason
rtellason at verizon.net
Thu Nov 15 11:17:20 CST 2007
On Thursday 15 November 2007 03:02, Chuck Guzis wrote:
> On 15 Nov 2007 at 2:34, Roy J. Tellason wrote:
> > I seem to remember some stuff duing my CP/M days that actually had a
> > bitmap of which locations needed to be fixed, though I'm darned if I can
> > remember just now what that was.
> If you put together CP/M from the OEM kit, you used it to make your
> customized copy of MOVCPM.
Right. But there was also some application software that did this as well.
> > Wasn't JRT the one that got some really bad reviews in Byte or one of the
> > other magazines? It was some early Pascal compiler anyhow. I can't say
> > I ever encountered it or ran across it or talked with anybody who had
> > used it.
> I still have my 8" JRT disk. Yes, it was terrible and slow, but what do you
> expect from a program that swaps to floppy? They advertised that you could
> write programs of any size, not limited by the RAM of your computer. While
> it was probably true that you could write programs much larger than
> available RAM, the d*mned thing was buggy enough to be useless.
It's the bugs that were reported back when, if I'm remembering right.
> > I remember one of the floppies I got with my Osborne originally was
> > labeled "UCSD P-System" (or something pretty close to that). I vaguely
> > recall poking around with it once, but it had nothing at all to do with
> > CP/M, wasn't compatible with anything else at all, and at that point in
> > time I couldn't see the use of it. I probably still have it somewhere,
> > and some docs on it too.
> Yup, UCSD P-system was its own operating system as well as the
> language support. Not a bad implementation for the time, but a world
> unto itself. I think at one point IBM even flogged it for the PC.
Apparently. A side-trip into wikipedia turned up some interesting reading on
that, and other somewhat related subjects, before I was too tired to
continue last night. :-)
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