From 913349589c4071a1096dbfd18600ded56d53d709 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Tue, 22 Jan 2008 14:35:51 -0800
Subject: mbr.S: save one more byte

%ax is set to zero at the top; we then set it to 0x4100, so we only
need to change %ah, not all of %ax.
---
 mbr/mbr.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'mbr')

diff --git a/mbr/mbr.S b/mbr/mbr.S
index f68ed890..304557b7 100644
--- a/mbr/mbr.S
+++ b/mbr/mbr.S
@@ -68,7 +68,7 @@ _start:
 next:
 	/* Check to see if we have EBIOS */
 	pushw	%dx		/* drive number */
-	movw	$0x4100, %ax
+	movb	$0x41, %ah	/* %al == 0 already */
 	movw	$0x55aa, %bx
 	xorw	%cx, %cx
 	xorb	%dh, %dh
-- 
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