PDP-11/05 returns to life
Pete Turnbull
pete at dunnington.plus.com
Tue Jan 6 16:27:01 CST 2009
On 06/01/2009 21:31, Paul Koning wrote:
>>>>>> "Henk" == Henk Gooijen <henk.gooijen at hotmail.com> writes:
>
> >> 2. Is there a chasing lights program I can run on the 11/05? Would
> >> be nice to see it visibly doing something
>
> Henk> Search the net. There is a small program (estimate 7 words). It
> Henk> uses the RESET instruction (is that 000005?) ... not nice if
> Henk> you connect an RX01 or RX02 to the machine as on every RESET
> Henk> (INIT) the heads clunk!
>
> That's a bit ugly...
>
> A cleaner one is the RSTS null job.
> You need a periodic interrupt, of course, to break out of the WAIT.
But you probably don't have one on a basic 11/05, which is why the
commonly-used one is the one Henk and Ethan mentioned, with the RESET
instruction.
--
Pete Peter Turnbull
Network Manager
University of York
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