From a8ee1dbc56889c680f0358cbb2a10e619aea1729 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Axel=20D=C3=B6rfler?= <axeld@pinc-software.de>
Date: Mon, 8 Sep 2003 12:23:03 +0000
Subject: [PATCH] Added Marcus version of __swap_int16(); it's commented out
 for now, though, but we might want to add it later.

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4561 a95241bf-73f2-0310-859d-f6bbb57e9c96
---
 src/kernel/libroot/os/arch/x86/byteorder.S | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/kernel/libroot/os/arch/x86/byteorder.S b/src/kernel/libroot/os/arch/x86/byteorder.S
index f56bf66853..a6c7aaac73 100644
--- a/src/kernel/libroot/os/arch/x86/byteorder.S
+++ b/src/kernel/libroot/os/arch/x86/byteorder.S
@@ -14,6 +14,15 @@ FUNCTION(__swap_int16):
 	shr		$16, %eax
 	ret
 
+/* this one is much faster on a P4, courtesy of Marcus Overhagen,
+ * a good candidate for per processor optimizations: */
+/*
+FUNCTION(__swap_int16_p4):
+	movl	4(%esp), %eax
+	rolw	$8, %ax
+	ret
+*/
+
 /* uint32 __swap_int32(uint32 value) */
 FUNCTION(__swap_int32):
 	movl	4(%esp), %eax