[Simh] Custom ROMs on PDP-11 sim

khandy21yo khandy21yo at gmail.com
Fri Dec 15 22:14:56 EST 2017


Can't you just load them into ram and run them from there?Rom is just non writable memory.


Sent from my Galaxy TabĀ® A
-------- Original message --------From: Aaron Jackson <aaron at aaronsplace.co.uk> Date: 12/15/17  10:37 AM  (GMT-07:00) To: Mark Pizzolato <Mark at infocomm.com> Cc: simh at trailing-edge.com Subject: Re: [Simh] Custom ROMs on PDP-11 sim 
Hi Mark,

It probably does not matter anymore unfortunately. I have a PDP-11 from
a Unimation PUMA robot, which has a 16x EPROM board in it but no power
supply. I was hoping to try running what was on them inside a
simulator. I started dumping them and realised that they have all been
erased before it was sent to me.

Of course I could have tried installing the card in my PDP-11/73 but I
thought there might have been an easier way with the simulator.

Never mind, thanks anyway.

Aaron.





Mark Pizzolato writes:

> Hi Aaron,
>
> On Friday, December 15, 2017 at 7:18 AM, Aaron Jackson wrote:
>> I am wondering if it is possible to use attach ROM dumps in the PDP-11 simh?
>> I haven't found anything about it in the documentation. If not, I suppose it
>> wouldn't be too hard to modify the bootrom header.
>
> The PDP11 simulator (which simulates MANY different PDP11 models) doesn't
> actually use any ROMs and doesn't currently support simulation of any cards
> which user supplied ROMS might have been installed in.
>
> What problem are you trying to solve???
>
> - Mark


--
Aaron Jackson
PhD Student, Computer Vision Laboratory, Uni of Nottingham
http://aaronsplace.co.uk
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