swab.h (665B)
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 */