PDP-9 lives

From: Hans B Pufal <hansp_at_aconit.org>
Date: Sat Dec 1 11:59:23 2001

I am very happy to be able to announce that the PDP-9 that we have been
working on for quite some time finally began talking to the world again
today.

We had gotten memory and processor operational, then had to fix a memory
fault which developed. TTY I/O posed some problems but finally today it
spoke and we could reply.

We ran the only two test routines we have on paper tape: the extended
memory test and the TTY test. There appears to be some issue with the
TTY since part 1 test halts after a while with PC=22, no mention of that
in the test writeup! TTY test part 2 runs without error.

Anyways, we plan on completeing checkout on this system, fix a couple of
burnt our indicator bulbs and get the punch up before starting on the
second system we have. That one has a dual dectapes, then we can read
the 100 or so tapes trhat came with the system, and run some real
software ;-)

I'd be interested in knowing the status of other pdp-9's.

Regards

   -- hbp
      for ACONIT, Grenoble France
Received on Sat Dec 01 2001 - 11:59:23 GMT