[Coco] !!A simple method for having both a term32 and using windows!!

mike delyea mdelyea at gmail.com
Mon Aug 27 18:58:03 EDT 2007


Interesting stuff.  So its essentially a boot order problem (grfdrv gets
loaded early=no problem, grfdrv gets loaded later=problem)?

On 8/27/07, Boisy Pitre <boisy at boisypitre.com> wrote:
>
> More information on how this bug was identified can be found at
> http://sourceforge.net/tracker/index.php?
> func=detail&aid=1770080&group_id=174026&atid=867681
>
> As Robert explained, the 16K grfdrv under 6809 requires two MMU
> blocks when it is mapped into system RAM at "first window" to be
> called at its initialization routine by cowin or cogrf.  Depending
> upon the size of your bootfile, the available space in the system map
> may or may not be there, and if not, the crash occurred.
>
> I've fixed the crash, so now the correct error (237, E$NoRAM) is
> being returned to the system. This means if the bootfile is too
> large, the boot screen will show an error code and NITROS-9 BOOT
> FAILED.  It will also show an error code if you forget to put GRFDRV
> into CMDS (before this bug fix, THAT would crash the system also and
> there wouldn't be a clue as to why).
>
> So by going through the tracks in the snow and following this bug, we
> found several other issues that were addressed.  Again, read all the
> gory details at the link above.
> --
> Boisy G. Pitre
> Email: boisy at boisypitre.com
> Web: http://www.boisypitre.com/
> Phone: 337-781-3570
>
>
>
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>



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