swab.h

 1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
 2#ifndef _M68K_SWAB_H
 3#define _M68K_SWAB_H
 4
 5#include <linux/types.h>
 6#include <linux/compiler.h>
 7
 8#define __SWAB_64_THRU_32__
 9
10#if defined (__mcfisaaplus__) || defined (__mcfisac__)
11static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
12{
13	__asm__("byterev %0" : "=d" (val) : "0" (val));
14	return val;
15}
16
17#define __arch_swab32 __arch_swab32
18#elif !defined(__mcoldfire__)
19
20static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
21{
22	__asm__("rolw #8,%0; swap %0; rolw #8,%0" : "=d" (val) : "0" (val));
23	return val;
24}
25#define __arch_swab32 __arch_swab32
26#endif
27
28#endif /* _M68K_SWAB_H */