In article by Mike Haertel:
I'm fairly sure I once saw the MIT 68k port of
on a Usenix tape. No idea which one, but probably
around 1982 or so.
I just looked in the Usenix tapes in the Unix Archive, no luck. The closest
I could find is the directory delaware/cwru.v7/pcc in the file
Applications/Spencer_Tapes/del.tar.gz, but this looks like a PDP-11
version and not a port.