tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef __ASM_BITREV_H
2#define __ASM_BITREV_H
3static __always_inline __attribute_const__ u32 __arch_bitrev32(u32 x)
4{
5 __asm__ ("rbit %w0, %w1" : "=r" (x) : "r" (x));
6 return x;
7}
8
9static __always_inline __attribute_const__ u16 __arch_bitrev16(u16 x)
10{
11 return __arch_bitrev32((u32)x) >> 16;
12}
13
14static __always_inline __attribute_const__ u8 __arch_bitrev8(u8 x)
15{
16 return __arch_bitrev32((u32)x) >> 24;
17}
18
19#endif