patch-1.3.45 linux/include/asm-ppc/byteorder.h

• Lines: 94
• Date: Sat Nov 25 19:49:06 1995
• Orig file: v1.3.44/linux/include/asm-ppc/byteorder.h
• Orig date: Thu Jan 1 02:00:00 1970

diff -u --recursive --new-file v1.3.44/linux/include/asm-ppc/byteorder.h linux/include/asm-ppc/byteorder.h
@@ -0,0 +1,93 @@
+#ifndef _PPC_BYTEORDER_H
+#define _PPC_BYTEORDER_H
+
+#ifndef __BIG_ENDIAN
+#define __BIG_ENDIAN
+#endif
+
+#ifndef __BIG_ENDIAN_BITFIELD
+#define __BIG_ENDIAN_BITFIELD
+#endif
+
+#if 0 /* Assume PowerPC is Big-Endian! */
+#undef ntohl
+#undef ntohs
+#undef htonl
+#undef htons
+
+extern unsigned long int	ntohl(unsigned long int);
+extern unsigned short int	ntohs(unsigned short int);
+extern unsigned long int	htonl(unsigned long int);
+extern unsigned short int	htons(unsigned short int);
+
+extern unsigned long int	__ntohl(unsigned long int);
+extern unsigned short int	__ntohs(unsigned short int);
+extern unsigned long int	__constant_ntohl(unsigned long int);
+extern unsigned short int	__constant_ntohs(unsigned short int);
+
+extern __inline__ unsigned long int
+__ntohl(unsigned long int x)
+{
+	return (((x & 0x000000ffU) << 24) |
+		((x & 0x0000ff00U) <<  8) |
+		((x & 0x00ff0000U) >>  8) |
+		((x & 0xff000000U) >> 24));
+}
+
+extern __inline__ unsigned long int
+__constant_ntohl(unsigned long int x)
+{
+	return (((x & 0x000000ffU) << 24) |
+		((x & 0x0000ff00U) <<  8) |
+		((x & 0x00ff0000U) >>  8) |
+		((x & 0xff000000U) >> 24));
+}
+
+extern __inline__ unsigned short int
+__ntohs(unsigned short int x)
+{
+	return (((x & 0x00ff) << 8) |
+		((x & 0xff00) >> 8));
+}
+
+extern __inline__ unsigned short int
+__constant_ntohs(unsigned short int x)
+{
+	return (((x & 0x00ff) << 8) |
+		((x & 0xff00) >> 8));
+}
+
+#define __htonl(x) __ntohl(x)
+#define __htons(x) __ntohs(x)
+#define __constant_htonl(x) __constant_ntohl(x)
+#define __constant_htons(x) __constant_ntohs(x)
+
+#ifdef  __OPTIMIZE__
+#  define ntohl(x) \
+(__builtin_constant_p((long)(x)) ? \
+ __constant_ntohl((x)) : \
+ __ntohl((x)))
+#  define ntohs(x) \
+(__builtin_constant_p((short)(x)) ? \
+ __constant_ntohs((x)) : \
+ __ntohs((x)))
+#  define htonl(x) \
+(__builtin_constant_p((long)(x)) ? \
+ __constant_htonl((x)) : \
+ __htonl((x)))
+#  define htons(x) \
+(__builtin_constant_p((short)(x)) ? \
+ __constant_htons((x)) : \
+ __htons((x)))
+#endif
+
+#else
+
+#define ntohl(x) (x)
+#define ntohs(x) (x)
+#define htonl(x) (x)
+#define htons(x) (x)
+
+#endif
+
+#endif /* !(_PPC_BYTEORDER_H) */