From owner-freebsd-drivers@FreeBSD.ORG  Wed May 23 10:14:32 2007
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Date: Wed, 23 May 2007 12:14:31 +0200
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Subject: Re: Generic int 13h driver
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On 5/23/07, Dag-Erling Sm=F8rgrav <des@des.no> wrote:
>
>
> Use PIO mode (no IRQs).  It's slower, but using the BIOS is so slow you
> probably won't notice anyway...
>
> Otherwise you need to install an interrupt handler which will catch IRQ
> 14 and pass it on to the BIOS.


I cannot decide if PIO will be used or not, since for SCSI devices (for
example) I don't think there is a PIO mode... I also would prefer not to
depend on the configuration of the BIOS.

So I will have to write an interrupt handler that catches the IRQ14, has go=
t
the address of the IRQ14 handler of the BIOS, run this handler in the VM86,
and pray The Great Sysop? :p