patch-2.3.16 linux/include/asm-sh/byteorder.h

• Lines: 44
• Date: Mon Aug 30 18:12:59 1999
• Orig file: v2.3.15/linux/include/asm-sh/byteorder.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.15/linux/include/asm-sh/byteorder.h linux/include/asm-sh/byteorder.h
@@ -0,0 +1,43 @@
+#ifndef __ASM_SH_BYTEORDER_H
+#define __ASM_SH_BYTEORDER_H
+
+/*
+ * Copyright (C) 1999  Niibe Yutaka
+ */
+
+#include <linux/config.h>
+#include <asm/types.h>
+
+static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
+{
+	__asm__("swap.b	%0, %0\n\t"
+		"swap.w %0, %0\n\t"
+		"swap.b %0, %0"
+		: "=r" (x)
+		: "0" (x));
+	return x;
+}
+
+static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
+{
+	__asm__("swap.b %0,%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 CONFIG_LITTLE_ENDIAN
+#include <linux/byteorder/little_endian.h>
+#else
+#include <linux/byteorder/big_endian.h>
+#endif
+
+#endif /* __ASM_SH_BYTEORDER_H */