Subject: Drive errors under protected mode..
To: djgpp AT sun DOT soe DOT clarkson DOT edu (gcc)
Date: Tue, 19 Dec 1995 14:56:04 -0500 (EST)
From: Justin Ward <ward AT escape DOT com>

I have this program that uses BIOS calls to read the sectors of a
disk.  biosdisk() works just fine, except when there's some disk error
(disk not in drive, read error, write error, write protected disk,
etc). I have a feeling the error arises because when there's a disk
error, int 0x13 (I think) is called. And of course this makes a whole
big mess of anything running in protected mode. So, how can I fix this
up so it doesn't happen? Compiling with a real mode compiler (I was
using tc++, but it doesn't really matter), I would just make another
interrupt handler for 0x13. But I have no idea how that would work in
protected mode. Could somebody please gimme a hint or two here?

Justin