[ros-diffs] [fireball] 24848: i386BootDrive and i386BootPartition are ULONGs, and before saving a byte value they must be zeroed. Thanks to Magnus for identifying the problem.

Author: fireball
Date: Mon Nov 27 00:46:45 2006
New Revision: 24848

URL: http://svn.reactos.org/svn/reactos?rev=24848&view=rev
Log:
i386BootDrive and i386BootPartition are ULONGs, and before saving a byte value they must
be zeroed.

Thanks to Magnus for identifying the problem.

Modified:
    trunk/reactos/boot/freeldr/freeldr/arch/i386/arch.S

Modified: trunk/reactos/boot/freeldr/freeldr/arch/i386/arch.S
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/boot/freeldr/freeldr/arch/…
==============================================================================
--- trunk/reactos/boot/freeldr/freeldr/arch/i386/arch.S (original)
+++ trunk/reactos/boot/freeldr/freeldr/arch/i386/arch.S Mon Nov 27 00:46:45 2006
@@ -46,6 +46,11 @@
 
 	.code32
 
+	/* Zero i386BootDrive and i386BootPartition */
+	xorl	%eax,%eax
+	movl	%eax,(_i386BootDrive)
+	movl	%eax,(_i386BootPartition)
+
 	/* Store the boot drive */
 	movb	%dl,(_i386BootDrive)
 
@@ -53,7 +58,6 @@
 	movb	%dh,(_i386BootPartition)
 
 	/* GO! */
-	xorl	%eax,%eax
 	pushl	%eax
 	call	_BootMain