43 lines
676 B
C
43 lines
676 B
C
/*
|
|
* Unaligned Data Accesses -- Generic Version
|
|
*
|
|
* (c) 1998 Martin Mares <mj@ucw.cz>
|
|
*
|
|
* Can be freely distributed and used under the terms of the GNU GPL.
|
|
*/
|
|
|
|
#ifndef _BIRD_UNALIGNED_H_
|
|
#define _BIRD_UNALIGNED_H_
|
|
|
|
#if CPU_NEEDS_ALIGN_WORD != 1 || CPU_NEEDS_ALIGN_LONG != 1
|
|
#include <string.h>
|
|
#endif
|
|
|
|
#if CPU_NEEDS_ALIGN_WORD == 1
|
|
#define unaligned_u16(p) (*((u16 *)(p)))
|
|
#else
|
|
static inline u16
|
|
unaligned_u16(void *p)
|
|
{
|
|
u16 x;
|
|
|
|
memcpy(&x, p, sizeof(x));
|
|
return x;
|
|
}
|
|
#endif
|
|
|
|
#if CPU_NEEDS_ALIGN_LONG == 1
|
|
#define unaligned_u32(p) (*((u32 *)(p)))
|
|
#else
|
|
static inline u32
|
|
unaligned_u32(void *p)
|
|
{
|
|
u32 x;
|
|
|
|
memcpy(&x, p, sizeof(x));
|
|
return x;
|
|
}
|
|
#endif
|
|
|
|
#endif
|