z-machine on pdp8 (or paging Woodelf)

[David Betz]

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.
>
>
>