Real-mode code might set the direction flag, which would cause carnage.

2007-07-17 13:46:37 +01:00 · 2007-07-17 13:46:37 +01:00 · 013d381e3c
parent c94cdf2b7d
commit 013d381e3c
1 changed files with 3 additions and 0 deletions
--- a/src/arch/i386/transitions/librm.S
+++ b/src/arch/i386/transitions/librm.S
@ -472,6 +472,9 @@ real_call:
 	call	*rc_function
 	pushal

+	/* For sanity's sake, clear the direction flag as soon as possible */
+	cld
+
 	/* Switch to protected mode and move register dump back to PM stack */
 	movl	$RC_OFFSET_RETADDR, %ecx
 	pushl	$1f