Memory and I/O protection on the 940

Al Kossow aek at
Fri May 6 14:21:59 CDT 2016

On 5/6/16 10:48 AM, Robert Ollerton wrote:
> I've always wanted to know more about the SDS 940 project since its a
> relative to my SDS Sigma 9.   If you know of any of the papers on the
> hardware, and OS they created I'd appreciate some pointers to where I could
> read them.  Thanks!

and their 'second system'

there is a mostly working simulation in SIMH, but it hasn't been released yet

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