9 Dec
2016
9 Dec
'16
1:24 a.m.
On 8 Dec 2016, at 19:11 , Johnny Billquist wrote:
So your guessing is pretty good. Not sure I'd say
this is similar to how the later PDP-11 MMU works, though. But I can see someone making
the comparison, since the PDP-11 pages can vary in size, within limits.
Thanks for that info on the PDP-10 MMU!
What I meant to say was that the high-low scheme has an echo in how the KL-11 was *used*
(not how it *worked*). A standard binary (0407 magic) effectively has two segments in
PDP11 Unix: a contiguous low segment (for text, data and bss) and a contiguous high
segment (for the stack).
Paul