[Simh] Is it possible to simulate the first Vaxen I ever used?

[Ethan Dicks]

On Mon, Mar 23, 2020 at 9:47 AM Paul Koning <paulkoning at comcast.net> wrote:
> > On Mar 23, 2020, at 9:33 AM, Robert Armstrong <bob at jfcl.com> wrote:
> >
> > ...for years I've heard a persistent rumor that the PDP-8/WPS-8 group at DEC had a 730 with microcode that had been hacked to include a PDP-8 compatibility mode, which they used for development.  It was faster than real -8 and supported timesharing to boot.
>
> I can refute that.  The WPS group sat right next to my first DEC group (Typeset-11).  Yes, they had a machine with extended microcode to run PDP-8 code faster.  But it was an 11/60 running RSTS/E.  That was in 1978; the 730 didn't exist yet back then.

The 11/60 microcoded to run PDP-8 instructions is the story I remember
from the early 80s.

Now I have an 11/60 so I am sad that hack was lost.

-ethan