[Simh] [Simh-dev] Idling around

Andrew Warkentin andreww at datanet.ab.ca
Fri Oct 20 23:19:43 EDT 2006


>--- Bob Supnik <bob at supnik.org> wrote:
>  
>
>>4. Then, each simulator will need a simulator specific idle 
>>algorithm.  For the PDP-11, it's the WAIT instruction (which won't 
>>work for RT11, I believe); for the Interdata systems, it's wait 
>>state.  For the PDP-8, PDP-15, H316, and GRI-909, I'm proposing to 
>>use the standard keyboard wait loop:
>>
>>	KSF/JMP *-1 or its equivalent
>>
>>as the idle loop.
>>
>>    
>>
That wouldn't work for XVM/RSX on the PDP-15. Its idle loop is just a 
JMP 4265, located at address 4265.




More information about the Simh mailing list