At 10:00 AM 4/17/2020, Bob Smith <bobsmith...@gmail.com> wrote:
...I believe sometime in the late 70s, maybe as late as 1980, a prof associated with UMass wrote a paper describing an extension of the PDP8 called 8/X or 8X. ...I believe, my memory is fuzzy, that it was a prof nnmed Stone or Stoner (perhaps Harold S) who lead the effort and had his name on the paper.
That is probably Harold S. Stone, whom I knew as a Stanford prof in the early 1970s and did some corporate consulting with. Brilliant guy. From 1974 to 1984 he was at UMass Amherst, so your memory isn't fuzzy at all. He also worked at the IBM Yorktown Heights research center. He was the author of several books and many papers about computer architecture, algorithms, and interfaces.
Unfortunately I don't remember him working on a PDP-8 extension, and a quick search of the ACM Digital Library turned up nothing. As far as I know he's still alive at the age of 82.
