Hi
If the source code was in fact modified by Lions, are
there any
machine-readable versions available?
The source is not modified by Lions, aside some layout and commentary changes.
You can find it at
http://www.tuhs.org/Archive/PDP-11/Distributions/research/Ken_Wellsch_v6/
By the way, the V6 documentation can be viewed at
http://www.ba-stuttgart.de/~helbig/os/v6/doc/index.html
Have fun,
Wolfgang