1620c05a8d
cross-releasing i386 on different architectures. This version provides an i386 version of <a.out.h>, and handles endianness. Tested on: alpha, sparc64
53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <machine/endian.h>
|
|
|
|
#define bswap16(x) (uint16_t) \
|
|
((x >> 8) | (x << 8))
|
|
|
|
#define bswap32(x) (uint32_t) \
|
|
((x >> 24) | ((x >> 8) & 0xff00) | ((x << 8) & 0xff0000) | (x << 24))
|
|
|
|
#define bswap64(x) (uint64_t) \
|
|
((x >> 56) | ((x >> 40) & 0xff00) | ((x >> 24) & 0xff0000) | \
|
|
((x >> 8) & 0xff000000) | ((x << 8) & ((uint64_t)0xff << 32)) | \
|
|
((x << 24) & ((uint64_t)0xff << 40)) | \
|
|
((x << 40) & ((uint64_t)0xff << 48)) | ((x << 56)))
|
|
|
|
/*
|
|
* Host to big endian, host to little endian, big endian to host, and little
|
|
* endian to host byte order functions as detailed in byteorder(9).
|
|
*/
|
|
#if _BYTE_ORDER == _LITTLE_ENDIAN
|
|
#define HTOBE16(x) bswap16((uint16_t)(x))
|
|
#define HTOBE32(x) bswap32((uint32_t)(x))
|
|
#define HTOBE64(x) bswap64((uint64_t)(x))
|
|
#define HTOLE16(x) ((uint16_t)(x))
|
|
#define HTOLE32(x) ((uint32_t)(x))
|
|
#define HTOLE64(x) ((uint64_t)(x))
|
|
|
|
#define BE16TOH(x) bswap16((uint16_t)(x))
|
|
#define BE32TOH(x) bswap32((uint32_t)(x))
|
|
#define BE64TOH(x) bswap64((uint64_t)(x))
|
|
#define LE16TOH(x) ((uint16_t)(x))
|
|
#define LE32TOH(x) ((uint32_t)(x))
|
|
#define LE64TOH(x) ((uint64_t)(x))
|
|
#else /* _BYTE_ORDER != _LITTLE_ENDIAN */
|
|
#define HTOBE16(x) ((uint16_t)(x))
|
|
#define HTOBE32(x) ((uint32_t)(x))
|
|
#define HTOBE64(x) ((uint64_t)(x))
|
|
#define HTOLE16(x) bswap16((uint16_t)(x))
|
|
#define HTOLE32(x) bswap32((uint32_t)(x))
|
|
#define HTOLE64(x) bswap64((uint64_t)(x))
|
|
|
|
#define BE16TOH(x) ((uint16_t)(x))
|
|
#define BE32TOH(x) ((uint32_t)(x))
|
|
#define BE64TOH(x) ((uint64_t)(x))
|
|
#define LE16TOH(x) bswap16((uint16_t)(x))
|
|
#define LE32TOH(x) bswap32((uint32_t)(x))
|
|
#define LE64TOH(x) bswap64((uint64_t)(x))
|
|
#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */
|