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- #ifndef ETHERBOOT_BITS_BYTESWAP_H
- #define ETHERBOOT_BITS_BYTESWAP_H
-
- /* We do not have byte swap functions ... We are
- * RISC processor ...
- */
-
- static inline unsigned short __swap16(volatile unsigned short v)
- {
- return ((v << 8) | (v >> 8));
- }
-
- static inline unsigned int __swap32(volatile unsigned long v)
- {
- return ((v << 24) | ((v & 0xff00) << 8) | ((v & 0xff0000) >> 8) | (v >> 24));
- }
-
- #define __bswap_constant_16(x) \
- ((uint16_t)((((uint16_t)(x) & 0x00ff) << 8) | \
- (((uint16_t)(x) & 0xff00) >> 8)))
-
- #define __bswap_constant_32(x) \
- ((uint32_t)((((uint32_t)(x) & 0x000000ffU) << 24) | \
- (((uint32_t)(x) & 0x0000ff00U) << 8) | \
- (((uint32_t)(x) & 0x00ff0000U) >> 8) | \
- (((uint32_t)(x) & 0xff000000U) >> 24)))
-
- #define __bswap_16(x) \
- (__builtin_constant_p(x) ? \
- __bswap_constant_16(x) : \
- __swap16(x))
-
-
- #define __bswap_32(x) \
- (__builtin_constant_p(x) ? \
- __bswap_constant_32(x) : \
- __swap32(x))
-
- #endif /* ETHERBOOT_BITS_BYTESWAP_H */
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