[Simh] How to keep RSTS in sync w/ "wall time"?

[Johnny Billquist]

On 2016-09-09 23:07, Dario Niedermann wrote:
> Il 09/09/2016 alle 18:02, Dario Niedermann ha scritto:
>
>> it lags behind. Same as when I tried enabling CPU idling.
>
> I must correct myself: When I enable CPU idling and clock frequency is
> set to 60Hz, RSTS actually keeps correct time (provided I never suspend
> emulation to get to SimH's prompt). It turns out that 'set throttle' was
> canceling the idling (as documented).

So the time drift was because of a 50/60 Hz mixum. Great. That problem 
solved.

> Still, the problem is: With idling and no throttling is my emulated
> PDP11/70's speed realistic - which is what I'm looking for - or is it
> as fast as my hardware can manage?

You can always telnet to magica.update.uu.se, port 10023, and you have a 
real PDP-11/70 to compare with, although running RSX-11M-PLUS, and not 
RSTS/E...

	Johnny

-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol