Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!zaphod.mps.ohio-state.edu!samsung!uunet!abvax!iccgcc.decnet.ab.com!herrickd
From: herrickd@iccgcc.decnet.ab.com
Newsgroups: comp.arch
Subject: Re: XDS940 computer (or Xerox Sigma 9)
Message-ID: <1991Jun17.173204.4896@iccgcc.decnet.ab.com>
Date: 17 Jun 91 22:32:04 GMT
References: <1991Jun5.231450.25856@digi.lonestar.org> <13933@goofy.Apple.COM> <1991Jun12.180535.19518@sono.uucp>
Lines: 20

In article <1991Jun12.180535.19518@sono.uucp>, miklg@sono.uucp (Michael Goldman ) writes:
> 
> Then I went to work for MDSI (also in Ann Arbor) which had a very lucrative
> machine tool language they ran timesharing for customers on 940s (the
> founders had spun off from Comshare).  They had optimized the hell out of
> that assembly language program.  They rented time on 940s from Tymshare
> in Sunnyvale,
[...]
> They had some DEC-10s they ran for development.  They  had changed
> the microcode on the DEC-10s so it would run 940 assembly code !! (Top THAT
> you hackers !).  

Ok, if we're naming names, I think the detail should be right on this.
They decided to microcode the ten, and They paid for it, but Richard
Wagman did it.  Dick's approach to PDP-10 macro was to define a set
of macroes that let him write 370 opcodes and syntax and get PDP-10
assemblies.  I used a piece of his 370 code to do a little bit more
than he needed to, once.  Interesting.

dan herrick