segaloco <segaloco(a)protonmail.com> wrote:
Looooots of if(n)defs in userland on "u370"
in PDP-11 System V code, zilch on 3.0.1.
Yep, must've been 4.0, because that's in the first document, A.1.1:
https://www.tuhs.org/Archive/Documentation/Manuals/Unix_4.0/Volume_1/A.1.1_…
"Currently, UNIX runs on the Western Electric Co. 3B-20; Digital Equipment
Corporation's (DEC) PDP-11/23, /34, /45, /70, VAX-11/780, and VAX-11/750;
and IBM System/370 and equivalent."
So there we have it, Unix/370 inside the Bell System was at 4.0. I don't think they
ever released that
outside the Bell System. Not surprising, as it needed a modified TSS underneath.
Arnold