linux_old1/arch/mips/include/asm/bitrev.h

31 lines
569 B
C

#ifndef __MIPS_ASM_BITREV_H__
#define __MIPS_ASM_BITREV_H__
#include <linux/swab.h>
static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
{
u32 ret;
asm("bitswap %0, %1" : "=r"(ret) : "r"(__swab32(x)));
return ret;
}
static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x)
{
u16 ret;
asm("bitswap %0, %1" : "=r"(ret) : "r"(__swab16(x)));
return ret;
}
static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
{
u8 ret;
asm("bitswap %0, %1" : "=r"(ret) : "r"(x));
return ret;
}
#endif /* __MIPS_ASM_BITREV_H__ */