[TUHS] DMD 5620 simulator

[Larry McVoy]

I had a 3B1, very different machine, 68K based, I liked it.  The 3B2 was,
well, if I'm being nice, an also ran.  It was a thing but it was never
the thing.  I've run at least one of the lower end models, it worked 
but it was behind the other systems I ran.  Cool that they did it, 
but like many attempts, not enough ahead.

I have very fond memories of the BLIT terminals, I just liked how much
you got out of a serial cable.  Way, way more than anyone else imagined.

On Tue, Sep 13, 2022 at 11:58:38AM +1000, Rob Pike wrote:
> Some time ago, Greg Christie, then at Apple, booted up a 3B2 with a 5620
> attached and invited me to play with it. Now _that_ was a trip down memory
> lane. (The 3B2, maybe not so much.)
> 
> It was a reward for an interview with him, recorded on video, about the
> early days of 2d graphics as I saw them, for a course for employees. But
> being Apple, even though it was 0% proprietary, it will never see the light
> of day.
> 
> -rob
> 
> 
> On Tue, Sep 13, 2022 at 11:53 AM Larry McVoy <lm at mcvoy.com> wrote:
> 
> > This looks like some really nice work.  I used a BLIT at UW Madison
> > and loved it, it was way more useful than a terminal and way less
> > fuss than a full blown windowing system.  Felt like the knee of the
> > curve.  All of that over a serial line, that's impressive.
> >
> > I dunno, but I bet that Rob trys it out just for a trip down memory
> > lane.
> >
> > On Mon, Sep 12, 2022 at 04:25:50PM -0700, Seth Morabito wrote:
> > > Hello all,
> > >
> > > I've recently been improving the AT&T/Teletype DMD 5620 simulator I
> > wrote a few years ago. It can now run either the 8;7;3 or 8;7;5 firmware.
> > It also now supports executing a local shell or connecting directly to a
> > physical or virtual tty device. It runs natively on Linux or macOS with X11
> > or Wayland, but I would love help creating a Windows version if you're a
> > Windows programmer (I am an occasional Windows user, but I am not at all
> > knowledgeable about Windows programming).
> > >
> > > Full details are available here:
> > https://loomcom.com/3b2/dmd5620_emulator.html
> > >
> > > The source code is here: https://github.com/sethm/dmd_gtk
> > >
> > > Many thanks go to my friend Sark (@crtdude on Twitter) for tracking down
> > the 8;7;3 firmware and dumping it for me. I'd also like to thank Mike
> > Haertel for helping find bugs, providing feedback, and inspiring me to get
> > it working with Research Unix in addition to SVR3.
> > >
> > > Feedback, bug reports, and pull requests are all welcome!
> > >
> > > -Seth
> > > --
> > >   Seth Morabito
> > >   Poulsbo, WA
> > >   web at loomcom.com
> >
> > --
> > ---
> > Larry McVoy           Retired to fishing
> > http://www.mcvoy.com/lm/boat
> >

-- 
---
Larry McVoy           Retired to fishing          http://www.mcvoy.com/lm/boat