On Friday, May 19, 2023, KenUnix <ken.unix.guy@gmail.com> wrote:
Was any documentation ever done for the basic interpreter
that was on System-V?

Not exactly what you’re asking for but you’ll probably find these videos interesting / relevant:

https://m.youtube.com/watch?v=LZUMNZTUJos&feature=youtu.be

https://m.youtube.com/watch?v=ELICIa3L22o&feature=youtu.be

Dave (the creator of the videos) shared these on TUHS some time ago.

Josh