Simon Wood writes:
>
> Hello all,
> I'm new to the list and was wondering what the 'state of play' is for those
> alternative bits of hardware, in particular the Psion 3a.
>
> I wouldn't be suprised if no code existed, but has any foundation work been
> done w.r.t. how ELKS might be implemented on a paged memory system without
> all those BIOS calls.
>
> I am currently investigating driving the 3a's hardware directly and would
> like to pool any effort 'we' can muster. Current progress isn't much but
> it's a start, see http://www.mungewell.ndirect.co.uk/psion/beyond.htm
>
I have been trying to keep up with the SIBO-Linux project hosted by Matt
Gumbley, but I can't remember seeing anything for a while, and got a bit
stuck because last I checked they weren't releasing the code for fear of
upsetting psion.
The info on your page is great. I will give it a try as soon as I remember
to bring my serial cable in from home. I will have to try the code on my 3c
which I use for work. I have a sacrificial 3a which I got specifically for
testing dodgey code, but I don't have a cable for it.
If you have managed to circumvent memory protection, which looks to be the
case, then starting to get ELKS onto a psion should be possible. We will
need a boot loader to load a kernel image, then we can start modifying the
code and see what happens.
Al
