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List: freebsd-hackers
Subject: [Fwd: [FAQ] The Open Source Stackable PC BIOS (fwd)]
From: Terry Lambert <tlambert2 () mindspring ! com>
Date: 2002-12-30 6:21:04
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-- Terry
Bruce M Simpson wrote:
>
> Terry,
>
> On Fri, Dec 13, 2002 at 08:04:12AM -0800, Terry Lambert wrote:
> > "Ronald G. Minnich" wrote:
> > > On Thu, 12 Dec 2002, Terry Lambert wrote:
> > >
> > > > I guess it's not OK to make BIOS calls into the BIOS?
> > >
> > > not if it's my lazy bios that doesn't support them.
> >
> > Actually, the interesting part would be a survey of which BIOS
> > calls are actually used (a survey by a BIOS writer, maybe, hint
> > hint 8-)).
> >
> > The real question is fail-safe on unimplemented BIOS calls,
> > which should return a characteristic error.
>
> I have done this work. The results can be seen at:
>
> http://www.incunabulum.com/code/projects/freebsd/freebsd-bios-interaction.txt
>
> I have also rewritten boot0.s to use the BIOS COM Port Services (INT 14h):
>
> http://www.incunabulum.com/code/projects/freebsd/boot0sio.s
>
> Comments, suggestions, flames etc. to the usual address.
>
> P.S. The PTRs for this machine may be FUBAR, so if you could repost to
> hackers@ I should be most grateful.
>
> yours,
> BMS
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