diff options
Diffstat (limited to 'firmware/export')
| -rw-r--r-- | firmware/export/system.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/firmware/export/system.h b/firmware/export/system.h index f6d441ef2a..0a13ec2208 100644 --- a/firmware/export/system.h +++ b/firmware/export/system.h @@ -157,7 +157,12 @@ int get_cpu_boost_counter(void); ((type *)((intptr_t)(memberptr) - OFFSETOF(type, membername))) /* returns index of first set bit or 32 if no bits are set */ +#if defined(CPU_ARM) && ARM_ARCH >= 5 && !defined(__thumb__) +static inline int find_first_set_bit(uint32_t val) + { return LIKELY(val) ? __builtin_ctz(val) : 32; } +#else int find_first_set_bit(uint32_t val); +#endif static inline __attribute__((always_inline)) uint32_t isolate_first_bit(uint32_t val) |