25 Sep
2020
25 Sep
'20
9:21 p.m.
From: Warner Losh
I'm pretty sure PDP-10 wasn't 1's
compliment / was 2's compliment..
Just to confirm, I pulled out my PDP-10 Hardware Reference Manual; Vol I - CPU
(EK-10/20-HR-001), and it does indeed say (pg. 1-12): "The fixed-point
arithmetic instructions use 2's complement representations to do binary
arithmetic." Selah.
Noel