[TUHS] AT&T 3B1 - Emulation available

[arnold at skeeve.com]

Hi.

Thanks for the update.  The speed comparison is interesting.

With respect to screen flickering, please open an issue on the Github
repo.  I don't really see that under Linux.

Thanks,

Arnold

Sergio Pedraja <spedraja at gmail.com> wrote:

> Hi everyone.  I've built Freebee using Make and specifying win32 as
> architecture under Cygwin with libSDL2 plus Cygwin-X XWindows installed.
> The Freebee runs starting it from xterm.  It's a bit faster than my own
> real 3B1.  I have briefly tested the two startup hard drives and the second
> hard drive, empty.  No problem as far as I have seen.  Great work.  On the
> other hand I dare to suggest the improve of the GUI of the emulator to
> reduce the flickering of the 3B1's screen refresh.  Is too much visible.
> Thanks and good luck, anyway.
>
> Sergio
>
> El vie., 29 ene. 2021 11:50, Arnold Robbins <arnold at skeeve.com> escribió:
>
> > Hello All.
> >
> > Many of you may remember the AT&T UNIX PC and 3B1.  These systems
> > were built by Convergent Technologies and sold by AT&T. They had an
> > MC 68010 processor, up to 4 Meg Ram and up to 67 Meg disk. The OS
> > was System V Release 2 vintage. There was a built-in 1200 baud modem,
> > and a primitive windowing system with mouse.
> >
> > I had a 3B1 as my first personal system and spent many happy hours writing
> > code and documentation on it.
> >
> > There is an emulator for it that recently became pretty stable. The
> > original
> > software floppy images are available as well.  You can bring up a fairly
> > functional system without much difficulty.
> >
> > The emulator is at https://github.com/philpem/freebee. You can install up
> > to two 175 Meg hard drives - a lot of space for the time.
> >
> > The emulator's README.md there has links to lots of other interesting
> > 3B1 bits, both installable software and Linux tools for exporting the
> > file system from disk image so it can be mounted under Linux and
> > importing it back. Included is an updated 'sysv' Linux kernel module
> > that can handle the byte-swapped file system.
> >
> > I have made a pre-installed disk image available with a fair amount
> > of software, see https://www.skeeve.com/3b1/.
> >
> > The emulator runs great under Linux; not so sure about MacOS or Windows.
> > :-)
> >
> > So, anyone wishing to journey back to 1987, have fun!
> >
> > Arnold
> >