[Simh] set cpu idle not working?

Paul Koning paulkoning at comcast.net
Tue Nov 7 08:56:11 EST 2017


> On Nov 6, 2017, at 10:37 PM, Will Senn <will.senn at gmail.com> wrote:
> 
> Oops, found it in the manual:
> The CPU is considered idle if a WAIT instruction is executed. This will work for RSTS/E and RSX-11M+, but not for RT-11 or UNIX.
> 
> So, not unix, bummer.
> 
> Will

You could extend the wait checking in the simulator to detect other wait types.  The VAX emulator does that.  It would not be all that difficult to detect the RT-11 FB style idler (the one that spins the lights).  I don't know how Unix does it; depending on the answer the job may be rather complicated.  

	paul



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