On Tue, 13 Jul 1999, Adriano Camargo Rodrigues da Cunha wrote:
>
> Jon,
>
> > > Well... What I do is clear hooks and fill the area D000h-F000h
> > > with zeros...
> > hmmm... seems dangerous to me: some hardware drivers can be installed in
> > this area at startup. (example: workspace of diskroms). MSX system area
> > is from #F380...#FFFF. Below that area, the DOS kernel area;
>
> Remember that UZIX doesn' uses DOS. It acesses peripherals
> directly (using their ROM, if available).
well, that's the problem: if you want to use the diskrom, you should keep
the diskromvariables in page 3 and not overwrite them with zeroes!
It is no problem to overwrite the DOS kernel area in page 3
(#F1C9..#F37F), but the diskromvariables below #F1C9 should be maintained!
Cya!
Jon
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