[Simh] PDP11 on Simh for public access

Brett Bump bbump at rsts.org
Tue Jan 23 13:48:03 EST 2018


More likely a couple of hair dryers (set on low heat) would be better. ;-)

The air conditioning in our college science building worked so well I used
to pull the front of the 11/20 (and also the box of memory below it) out
so that it could blow the heat across my cold legs while I wrote programs
on an LA36 in my summer shorts.

On Tue, 23 Jan 2018, khandy21yo wrote:

> Now he needs to simulate the noise that the actual systems created. A couple of vacuum  cleaners would do nicely. Maybe three?
> 
> Sent from my Galaxy Tab® A
> 
> -------- Original message --------
> From: Paul Koning <paulkoning at comcast.net>
> Date: 1/23/18 7:46 AM (GMT-07:00)
> To: Johnny Billquist <bqt at softjar.se>
> Cc: simh at trailing-edge.com, Mark Pizzolato <Mark at infocomm.com>
> Subject: Re: [Simh] PDP11 on Simh for public access
> 
> 
> 
> > On Jan 23, 2018, at 5:55 AM, Johnny Billquist <bqt at softjar.se> wrote:
> >
> > Good that it works. Do you know what the problem was in detail? Also - with regard to cpu load. Have you told simh to idle when the simulation does?
> >
> > And for Paul. Is rsts using the wait instruction to idle?
> 
> Yes, RSTS idles just fine.  It uses WAIT for that (at least as far back as V4).
> 
> paul
> 
> 
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