Found in 3 comments on Hacker News
flakiness · 2021-07-09
· Original
thread
I had a colleague who did some work on PDP-11 on his early career. Excited, I asked "So you were using C (language) there?" "No, it's too early" He told me, kind of dismissively. In retrospect it was obvious - The PDP11-based Unix of the Lion's Book [1] was what I had in my mind, but that was probably more like an academic pursuit than a foundational OS of commercial software.
[1] https://www.amazon.com/Lions-Commentary-Unix-John/dp/1573980...
tankenmate · 2014-11-17
· Original
thread
If you are going to study this you should also read the Lion's Commentary of the Unix 6th Edition (kernel)[0]. It provides a line by line commentary of the whole kernel (minus some of the hardware specific drivers). Xv6 is a port of the edition 6 kernel to x86 (with some minor changes).
[0] http://www.amazon.com/Lions-Commentary-Unix-John/dp/15739801...
https://www.amazon.com/Lions-Commentary-Unix-John/dp/1573980...