patch-2.4.22 linux-2.4.22/include/asm-sh64/byteorder.h

• Lines: 50
• Date: 2003-08-25 04:44:44.000000000 -0700
• Orig file: linux-2.4.21/include/asm-sh64/byteorder.h
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/include/asm-sh64/byteorder.h linux-2.4.22/include/asm-sh64/byteorder.h
@@ -0,0 +1,49 @@
+#ifndef __ASM_SH64_BYTEORDER_H
+#define __ASM_SH64_BYTEORDER_H
+
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * include/asm-sh64/byteorder.h
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ */
+
+#include <asm/types.h>
+
+static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
+{
+	__asm__("byterev	%0, %0\n\t"
+		"shari		%0, 32, %0"
+		: "=r" (x)
+		: "0" (x));
+	return x;
+}
+
+static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
+{
+	__asm__("byterev	%0, %0\n\t"
+		"shari		%0, 48, %0"
+		: "=r" (x)
+		: "0" (x));
+	return x;
+}
+
+#define __arch__swab32(x) ___arch__swab32(x)
+#define __arch__swab16(x) ___arch__swab16(x)
+
+#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
+#  define __BYTEORDER_HAS_U64__
+#  define __SWAB_64_THRU_32__
+#endif
+
+#ifdef __LITTLE_ENDIAN__
+#include <linux/byteorder/little_endian.h>
+#else
+#include <linux/byteorder/big_endian.h>
+#endif
+
+#endif /* __ASM_SH64_BYTEORDER_H */