[Simh] Graphics on SimH

[Bob Supnik]

There is actually an implementation of the PDP-1's frame buffer on SimH, 
done several revs ago.  I believe that it relies on native Windows calls 
for the Windows family, and native X Windows call for everyone else.  
That's certainly a viable approach.

I've consulted with experts (ie, my children, who write computer games) 
on possibilities for truly OS independent graphics packages.  One 
possibility is Java, but the issues of interfacing a single-threaded C 
program - SimH - to the inherently multithreaded Java environment are 
not trivial.  Portable packages, like Qt, usually omit one of the 
supported host systems (Windows, VMS, Unix, Linux, MacOS).

I can post the PDP-1 work somewhere, if people are interested in looking 
at it.

/Bob Supnik