4 Apr
2007
4 Apr
'07
9:14 p.m.
Well, there's always virtual memory. Back when I was in college we
had a PDP-12 and I *really* wanted an 11 to play with (things haven't
changed much!). So, I wrote a PDP-11 simulator that ran on the 8. It
used disk space on an RK01 hard drive for virtual memory and could
simulate a PDP-11 with up to 32k of memory on a PDP-8 with only 8k.
Of course, it wasn't very fast but it did run ODT-11 (sort of). I
still have a listing of it. Some day I'll try typing it in to see if
it will work on the SBC6120 system that I'm building.
On Apr 4, 2007, at 5:35 PM, woodelf wrote:
David Griffith wrote:
Last year Woodelf posted a question wondering if
a Z-machine could be
ported to the pdp8. Woodelf, did you get anywhere with that?
The problem with a Z-Machine that memory, 32K bytes just covers the
game
data. About 10k+ for the Z-machine and 8k+ for a OS. The PDP-8 just
does not have the memory.