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#ifndef _BITS_BYTESWAP_H
#define _BITS_BYTESWAP_H
/** @file
*
* Byte-order swapping functions
*
*/
#include <stdint.h>
FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
static inline __attribute__ (( always_inline, const )) uint16_t
__bswap_variable_16 ( uint16_t x ) {
__asm__ ( "rev16 %0, %1" : "=r" ( x ) : "r" ( x ) );
return x;
}
static inline __attribute__ (( always_inline )) void
__bswap_16s ( uint16_t *x ) {
*x = __bswap_variable_16 ( *x );
}
static inline __attribute__ (( always_inline, const )) uint32_t
__bswap_variable_32 ( uint32_t x ) {
__asm__ ( "rev32 %0, %1" : "=r" ( x ) : "r" ( x ) );
return x;
}
static inline __attribute__ (( always_inline )) void
__bswap_32s ( uint32_t *x ) {
*x = __bswap_variable_32 ( *x );
}
static inline __attribute__ (( always_inline, const )) uint64_t
__bswap_variable_64 ( uint64_t x ) {
__asm__ ( "rev %0, %1" : "=r" ( x ) : "r" ( x ) );
return x;
}
static inline __attribute__ (( always_inline )) void
__bswap_64s ( uint64_t *x ) {
*x = __bswap_variable_64 ( *x );
}
#endif
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