[Simh] PDP11 on Simh for public access

[Bryan Davies]

I think my problem was that I had put my EXPECT commands after the boot
(where they occur in the start dialogue) but they need to be set up
beforehand.

Also the revised .ini file now has the EXPECT/SEND/CONTINUE all on a single
line.

I've now added set cpu idle and that seems to cure the processor racing
issue.

I just need to get it all in a nice neat box, connect up he VT100, and
download some games and things for the guests to use.

Thanks again to all.

Bryan.

On 23 January 2018 at 10:55, 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?
>
> Johnny
>
>
> Bryan Davies <bryan.e.davies at gmail.com> skrev: (23 januari 2018 10:32:31
> CET)
>
>> It works!  Many thanks to all who have assisted.
>>
>> I installed the changed .ini file and sure enough I now get past the
>> startup prompts.
>>
>> Paul - I have kept the modded Init.sys on standby but haven't installed
>> it.
>>
>> My only comment is that Simh seems to be very heavy on CPU.  The
>> Raspberry Pi seems to be maxed out when running it - even when the
>> simulated OS isn't 'doing' anything.  But it is nevertheless good enough
>> for display purposes.  I will be installing it at http://www.
>> computinghistory.org.uk/  tomorrow and the PC / Smartphone generation
>> will be able to see how computing was in the 'olden days'.
>>
>>
>> Regards to all,
>>
>> Bryan.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> On 22 January 2018 at 20:01, Paul Koning <paulkoning at comcast.net> wrote:
>>
>>>
>>>
>>> On Jan 22, 2018, at 2:53 PM, Mark Pizzolato <Mark at infocomm.com> wrote:
>>>
>>> The attached pdp11_exp.ini should work, and be simpler to understand.
>>>
>>>
>>> Thanks Mark.
>>>
>>> Just to correct a mistake in my earlier note to the list: I mixed up a
>>> modified version of RSTS V10.1 sources with the original.  I thought that
>>> the changes for Pro support were in the official one -- the answer yes
>>> "only in part".  The change to add a timeout on the "start timesharing"
>>> prompt was one I added as part of Pro support but that didn't make it into
>>> the official release.
>>>
>>> So you're stuck with an "expect" based solution, unless you want to use
>>> a modified init.sys.  I can supply that to anyone who's interested.
>>>
>>> paul
>>>
>>>
>>>
>>
> --
> Skickat från min Android-enhet med K-9 Mail. Ursäkta min fåordighet.
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.trailing-edge.com/pipermail/simh/attachments/20180123/a237afc2/attachment.html>