[Info-vax] Dave Cutler, Prism, DEC, Microsoft, etc.

[Bob Koehler]

In article <mddiqcn4nhq.fsf at panix5.panix.com>, Rich Alderson <news at alderson.users.panix.com> writes:
> koehler at eisner.nospam.encompasserve.org (Bob Koehler) writes:
> 
>> In article <hejq08$nf0$1 at usenet01.boi.hp.com>, "FredK" <fred.nospam at dec.com>
>> writes:
> 
>>    But just as the 18 bit PDP-10 was updated to 23 bits,
> 
> Actually, it was updated to 30 bits architecturally.  23 bits is the KL-10
> implementation, on top of its 22-bit pager (same size as that on the KI10,
> though different in implementation).  One clone manufacturer, XKL, built a
> machine with a full 30-bit pager (the Toad-1).

   All my documentation was from DEC, and none of it showed anything
   other than 18 and 23 bit addressing, but we probably did not have a
   copy of the formal architecture spec.