On Mon, Mar 23, 2020 at 9:47 AM Paul Koning <paulkon...@comcast.net> wrote: > > On Mar 23, 2020, at 9:33 AM, Robert Armstrong <b...@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 _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh
