Module Name: src
Committed By: joerg
Date: Thu Jan 14 02:06:04 UTC 2010
Modified Files:
src/sys/arch/amd64/include: byte_swap.h
Log Message:
Provide inline assembly version of bswap64.
To generate a diff of this commit:
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/amd64/include/byte_swap.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/amd64/include/byte_swap.h
diff -u src/sys/arch/amd64/include/byte_swap.h:1.6 src/sys/arch/amd64/include/byte_swap.h:1.7
--- src/sys/arch/amd64/include/byte_swap.h:1.6 Sun Oct 26 00:08:15 2008
+++ src/sys/arch/amd64/include/byte_swap.h Thu Jan 14 02:06:04 2010
@@ -1,7 +1,7 @@
-/* $NetBSD: byte_swap.h,v 1.6 2008/10/26 00:08:15 mrg Exp $ */
+/* $NetBSD: byte_swap.h,v 1.7 2010/01/14 02:06:04 joerg Exp $ */
/*-
- * Copyright (c) 1998 The NetBSD Foundation, Inc.
+ * Copyright (c) 1998, 2010 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
@@ -42,6 +42,15 @@
#include <sys/types.h>
__BEGIN_DECLS
+#define __BYTE_SWAP_U64_VARIABLE __byte_swap_u64_variable
+static __inline uint64_t __byte_swap_u64_variable(uint64_t);
+static __inline uint64_t
+__byte_swap_u64_variable(uint64_t x)
+{
+ __asm volatile ( "bswap %1" : "=r" (x) : "0" (x));
+ return (x);
+}
+
#define __BYTE_SWAP_U32_VARIABLE __byte_swap_u32_variable
static __inline uint32_t __byte_swap_u32_variable(uint32_t);
static __inline uint32_t
