Function __CLZ

bsp/efm32/Libraries/CMSIS/Include/arm_math.h:475–488

  __STATIC_INLINE uint32_t __CLZ(q31_t data)
  {
    uint32_t count = 0;
    uint32_t mask = 0x80000000;

    while((data & mask) == 0)
    {
      count += 1u;
      mask = mask >> 1u;
    }

    return (count);

  }

#endif