[syslinux:master] mbr_ho.bin: Fix stack bug; also save/restore cx in another location

[syslinux-bot for Gene Cumm]

Commit-ID:  4826c9996f0ac1d897042da1d545d105b29845c3
Gitweb:     http://syslinux.zytor.com/commit/4826c9996f0ac1d897042da1d545d105b29845c3
Author:     Gene Cumm <gene.cumm at gmail.com>
AuthorDate: Mon, 13 Dec 2010 21:39:34 -0500
Committer:  Gene Cumm <gene.cumm at gmail.com>
CommitDate: Wed, 9 Mar 2011 21:07:03 -0500

mbr_ho.bin: Fix stack bug; also save/restore cx in another location



---
 mbr/mbr_ho.S |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/mbr/mbr_ho.S b/mbr/mbr_ho.S
index 8bb9d61..a73b4a6 100644
--- a/mbr/mbr_ho.S
+++ b/mbr/mbr_ho.S
@@ -298,15 +298,17 @@ wrhexb:
 	call	wrhexn
 	popw	%ax
 	call	wrhexn
-	pushw	%cx
+	popw	%cx
 	ret
 
 wrhexw:
+	pushw	%cx
 	movb	$8, %cl
 	rorw	%cl, %dx
 	call wrhexb
 	rorw	%cl, %dx
 	call wrhexb
+	popw	%cx
 	ret
 
 	ASCII_MARKER1	"HE"