19 Aug
2015
19 Aug
'15
8:33 p.m.
From: Paul Koning <paulkoning at comcast.net>
> ...
Ok. RSTS does indeed check for duplicate vectors. It
also checks for
devices interrupting at too high a priority.
It?s pretty neat code. Back in 1977 or so when that
came out, it may
have been one of the first autoconfig systems, at least in DEC. It
could probe almost all devices supported by RSTS (and some not
supported); the exceptions being card readers and the DT07 bus switch.
But it would do hairy things like the KMC-11 and DMC-11, for example.
Wait? What was tricky about KMCs and DMCs? They used the same
algorithms, I had it down cold at the time.
Speaking of which, I have one copy of the KMC-11A Programmer's Guide if
anyone needs it or would like to scan it?
Dave (KMC-11 Tools Developer, RSX and VMS)
PS: I used ALGOLW on MTS in one of my ECE classes because we could
represent processor registers and operations using bit arrays/vectors
and boolean operations. Thus building working models of systems in
code.