HelenOS sources
This source file includes following definitions.
- uint64_t_byteorder_swap
- uint32_t_byteorder_swap
- uint16_t_byteorder_swap
#ifndef KERN_BYTEORDER_H_
#define KERN_BYTEORDER_H_
#include <stdint.h>
#if !(defined(__BE__) ^ defined(__LE__))
#error The architecture must be either big-endian or little-endian.
#endif
#ifdef __BE__
#define uint16_t_le2host(n) (uint16_t_byteorder_swap(n))
#define uint32_t_le2host(n) (uint32_t_byteorder_swap(n))
#define uint64_t_le2host(n) (uint64_t_byteorder_swap(n))
#define uint16_t_be2host(n) (n)
#define uint32_t_be2host(n) (n)
#define uint64_t_be2host(n) (n)
#define host2uint16_t_le(n) (uint16_t_byteorder_swap(n))
#define host2uint32_t_le(n) (uint32_t_byteorder_swap(n))
#define host2uint64_t_le(n) (uint64_t_byteorder_swap(n))
#define host2uint16_t_be(n) (n)
#define host2uint32_t_be(n) (n)
#define host2uint64_t_be(n) (n)
#else
#define uint16_t_le2host(n) (n)
#define uint32_t_le2host(n) (n)
#define uint64_t_le2host(n) (n)
#define uint16_t_be2host(n) (uint16_t_byteorder_swap(n))
#define uint32_t_be2host(n) (uint32_t_byteorder_swap(n))
#define uint64_t_be2host(n) (uint64_t_byteorder_swap(n))
#define host2uint16_t_le(n) (n)
#define host2uint32_t_le(n) (n)
#define host2uint64_t_le(n) (n)
#define host2uint16_t_be(n) (uint16_t_byteorder_swap(n))
#define host2uint32_t_be(n) (uint32_t_byteorder_swap(n))
#define host2uint64_t_be(n) (uint64_t_byteorder_swap(n))
#endif
static inline uint64_t uint64_t_byteorder_swap(uint64_t n)
{
return ((n & 0xff) << 56) |
((n & 0xff00) << 40) |
((n & 0xff0000) << 24) |
((n & 0xff000000LL) << 8) |
((n & 0xff00000000LL) >> 8) |
((n & 0xff0000000000LL) >> 24) |
((n & 0xff000000000000LL) >> 40) |
((n & 0xff00000000000000LL) >> 56);
}
static inline uint32_t uint32_t_byteorder_swap(uint32_t n)
{
return ((n & 0xff) << 24) |
((n & 0xff00) << 8) |
((n & 0xff0000) >> 8) |
((n & 0xff000000) >> 24);
}
static inline uint16_t uint16_t_byteorder_swap(uint16_t n)
{
return ((n & 0xff) << 8) |
((n & 0xff00) >> 8);
}
#endif
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