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Be paranoid about setting of %dl register for braindead BIOS's,

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initializing it to 0 in the floppy boot case.  This allows my Toshiba
1910 laptop to finally boot, and may help out other machines cursed
with early Phoenix BIOS's as well.
This commit is contained in:
Jordan K. Hubbard 1994-06-13 19:27:52 +00:00
parent b36ac09a51
commit ac9326b3cc
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=1714
2 changed files with 4 additions and 2 deletions
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3
sys/i386/boot/biosboot/start.S
View File

@ -24,7 +24,7 @@
* the rights to redistribute these changes.
*
* from: Mach, Revision 2.2 92/04/04 11:36:29 rpd
* $Id$
* $Id: start.S,v 1.2 1993/10/16 19:11:38 rgrimes Exp $
*/
/*
@ -99,6 +99,7 @@ start:
jae hd
fd:
mov $0x0, %dl
# reset the disk system
#ifdef DEBUG
data32

3
sys/i386/boot/start.S
View File

@ -24,7 +24,7 @@
* the rights to redistribute these changes.
*
* from: Mach, Revision 2.2 92/04/04 11:36:29 rpd
* $Id$
* $Id: start.S,v 1.2 1993/10/16 19:11:38 rgrimes Exp $
*/
/*
@ -99,6 +99,7 @@ start:
jae hd
fd:
mov $0x0, %dl
# reset the disk system
#ifdef DEBUG
data32