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Linux Cross Reference
Linux/include/asm-sh/byteorder.h

Version: ~ [ 2.4.0 ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~ 
  1 #ifndef __ASM_SH_BYTEORDER_H
  2 #define __ASM_SH_BYTEORDER_H
  3 
  4 /*
  5  * Copyright (C) 1999  Niibe Yutaka
  6  */
  7 
  8 #include <asm/types.h>
  9 
 10 static __inline__ __const__ __u32 ___arch__swab32(__u32 x)
 11 {
 12         __asm__("swap.b %0, %0\n\t"
 13                 "swap.w %0, %0\n\t"
 14                 "swap.b %0, %0"
 15                 : "=r" (x)
 16                 : "" (x));
 17         return x;
 18 }
 19 
 20 static __inline__ __const__ __u16 ___arch__swab16(__u16 x)
 21 {
 22         __asm__("swap.b %0, %0"
 23                 : "=r" (x)
 24                 :  "" (x));
 25         return x;
 26 }
 27 
 28 #define __arch__swab32(x) ___arch__swab32(x)
 29 #define __arch__swab16(x) ___arch__swab16(x)
 30 
 31 #if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
 32 #  define __BYTEORDER_HAS_U64__
 33 #  define __SWAB_64_THRU_32__
 34 #endif
 35 
 36 #ifdef __LITTLE_ENDIAN__
 37 #include <linux/byteorder/little_endian.h>
 38 #else
 39 #include <linux/byteorder/big_endian.h>
 40 #endif
 41 
 42 #endif /* __ASM_SH_BYTEORDER_H */
 43
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