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 impossible.

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...

Steve

----- Original Message -----
From:
"Nemo" <cym224@gmail.com>

To:
"Steve Johnson" <scj@yaccman.com>
Cc:
"TUHS main list" <tuhs@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).

N.