SIMH on low overhead platform

David Kuder dk at thewaffleiron.net
Mon Aug 17 11:30:17 CDT 2020


There are multiple libraries for bare metal execution on the Pi, there are
trade offs with device support.

Circle comes to mind
https://github.com/rsta2/circle

On Mon, Aug 17, 2020, 11:14 AM Liam Proven via cctalk <cctalk at classiccmp.org>
wrote:

> On Mon, 17 Aug 2020 at 09:43, Tom Hunter via cctalk
> <cctalk at classiccmp.org> wrote:
> >
> > Has SIMH been ported to a low overhead (instant-on) platform?
> >
> > I ask the question because the startup time of Linux is distracting when
> > powering on a PiDP-11/70 or similar clone systems based on SIMH.
>
> Not that I know of.
>
> I have been looking thoughtfully at Ultibo:
> https://ultibo.org/
>
> It is a bare-metal FreePascal development environment for the RasPi 1 to
> 3B.
>
> I have not actually tried to build anything yet and my Pascal skills
> are 30y rusty now (and they were never that great anyway, but they're
> better than my C skills ever were).
>
> I believe it is possible to get Ultibo to load and execute a
> monolithic ARM binary, so long as it meets some requirements. I was
> pondering trying to built a statically-linked executable of Aranym:
>
> https://aranym.github.io/
>
> Aranym already runs on the RasPi using Rasbian:
> https://sites.google.com/site/beebox68k/news/beepi10
>
> But by the same token it ought  to be possible to do this with SimH or
> anything else...
>
>
> --
> Liam Proven – Profile: https://about.me/liamproven
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