diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/atomic_arch.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/atomic_arch.h b/arch/arm/atomic_arch.h index d6af84d0..a121010f 100644 --- a/arch/arm/atomic_arch.h +++ b/arch/arm/atomic_arch.h @@ -81,3 +81,10 @@ static inline void a_crash() #endif : : : "memory"); } + +#define a_clz_32 a_clz_32 +static inline int a_clz_32(uint32_t x) +{ + __asm__ ("clz %0, %1" : "=r"(x) : "r"(x)); + return x; +} |