patch-2.1.51 linux/include/asm-ppc/byteorder.h

• Lines: 62
• Date: Sat Aug 16 09:51:09 1997
• Orig file: v2.1.50/linux/include/asm-ppc/byteorder.h
• Orig date: Mon Aug 4 16:25:39 1997

diff -u --recursive --new-file v2.1.50/linux/include/asm-ppc/byteorder.h linux/include/asm-ppc/byteorder.h
@@ -4,17 +4,17 @@
 #include <asm/types.h>
 
 #ifndef __BIG_ENDIAN
-#define __BIG_ENDIAN
+#define __BIG_ENDIAN	4321
 #endif
 
 #ifndef __BIG_ENDIAN_BITFIELD
 #define __BIG_ENDIAN_BITFIELD
 #endif
 
-#define ntohl(x) (x)
-#define ntohs(x) (x)
-#define htonl(x) (x)
-#define htons(x) (x)
+#define ntohl(x) ((unsigned long)(x))
+#define ntohs(x) ((unsigned short)(x))
+#define htonl(x) ((unsigned long)(x))
+#define htons(x) ((unsigned short)(x))
 
 #define __htonl(x) ntohl(x)
 #define __htons(x) ntohs(x)
@@ -54,7 +54,7 @@
 	asm volatile("stwbrx %0,0,%1" : : "r" (val), "r" (addr) : "memory");
 }
 
-
+#if 0
 extern __inline__ __u16 cpu_to_le16(__u16 value)
 {
 	return ld_le16(&value);
@@ -63,6 +63,29 @@
 {
 	return ld_le32(&value);
 }
+#else
+extern __inline__ __u16 cpu_to_le16(__u16 value)
+{
+	__u16 result;
+
+	asm("rlwimi %0,%1,8,16,23"
+	    : "=r" (result)
+	    : "r" (value), "0" (value >> 8));
+	return result;
+}
+extern __inline__ __u32 cpu_to_le32(__u32 value)
+{
+	__u32 result;
+
+	asm("rlwimi %0,%1,24,16,23\n\t"
+	    "rlwimi %0,%1,8,8,15\n\t"
+	    "rlwimi %0,%1,24,0,7"
+	    : "=r" (result)
+	    : "r" (value), "0" (value >> 24));
+	return result;
+}
+#endif /* 0 */
+
 #define cpu_to_be16(x)  (x)
 #define cpu_to_be32(x)  (x)