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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [include/] [asm-mips/] [byteorder.h] - Rev 1765
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#ifndef __ASM_MIPS_BYTEORDER_H #define __ASM_MIPS_BYTEORDER_H /* * FIXME: Add big endian support */ #undef ntohl #undef ntohs #undef htonl #undef htons #if defined (__MIPSEL__) #define __LITTLE_ENDIAN #define __LITTLE_ENDIAN_BITFIELD #elif defined (__MIPSEB__) #define __BIG_ENDIAN #define __BIG_ENDIAN_BITFIELD #else #error "MIPS but neither __MIPSEL__ nor __MIPSEB__?" #endif 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 __inline__ unsigned long int __ntohl(unsigned long int); extern __inline__ unsigned short int __ntohs(unsigned short int); extern __inline__ unsigned long int __constant_ntohl(unsigned long int); extern __inline__ unsigned short int __constant_ntohs(unsigned short int); /* * The constant and non-constant versions here are the same. * Maybe I'll come up with an mips-optimized routine for the * non-constant ones (the constant ones don't need it: gcc * will optimize it to the correct constant). Oh, and the * big endian routines that are still missing will be fairly * easy to write :-) */ extern __inline__ unsigned long int __ntohl(unsigned long int x) { return (((x & 0x000000ffU) << 24) | ((x & 0x0000ff00U) << 8) | ((x & 0x00ff0000U) >> 8) | ((x & 0xff000000U) >> 24)); } #define __constant_ntohl(x) \ ((unsigned long int)((((unsigned long int)(x) & 0x000000ffU) << 24) | \ (((unsigned long int)(x) & 0x0000ff00U) << 8) | \ (((unsigned long int)(x) & 0x00ff0000U) >> 8) | \ (((unsigned long int)(x) & 0xff000000U) >> 24))) extern __inline__ unsigned short int __ntohs(unsigned short int x) { return (((x & 0x00ff) << 8) | ((x & 0xff00) >> 8)); } #define __constant_ntohs(x) \ ((unsigned short int)((((unsigned short int)(x) & 0x00ff) << 8) | \ (((unsigned short int)(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 #endif /* __ASM_MIPS_BYTEORDER_H */