XXDP on PDP-11/03
fritzm at fritzm.org
Wed Aug 14 19:04:10 CDT 2019
> I don't know if the front console on the early UNIBUS machines works without
> any memory on the UNIBUS - I'm too lazy to check. I have this vague memory that
> they do, though.
The front console on the '45 indeed does run just fine with no UNIBUS (or FASTBUS) memory in the machine. Its is entirely implemented/mediated by CPU microcode and CPU internal state registers.
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