[TUHS] Was pcc ever ported to the CDC6600?

Steve Johnson scj at yaccman.com
Fri Jan 20 03:47:27 AEST 2017

PCC ended up being ported to many dozen different architectures, so
it's quite possible, but I don't recall it being done.  It was kind
of a dinosaur by the early 70's.  I'm not even sure that it had
memory protection, and it certainly didn't have paging.  And the I/O
system was strange.  So porting Unix would have been next to

The main thing I remember about the 6600 was that it didn't have
parity bits on its memory.  So people used to run the same program
three times and if two of the answers agreed, they published...


----- Original Message -----
From: "Nemo" <cym224 at gmail.com>
To:"Steve Johnson" <scj at yaccman.com>
Cc:"TUHS main list" <tuhs at minnie.tuhs.org>
Sent:Wed, 18 Jan 2017 21:52:58 -0500
Subject:Was pcc ever ported to the CDC6600?

 All this talk of targets for UNIX makes me wonder (given the
 eccentricity of the machine).


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://minnie.tuhs.org/pipermail/tuhs/attachments/20170119/33728700/attachment.html>

More information about the TUHS mailing list