Use hardware sqrtf

5 years ago · 42a2bec082
parent 6de443f726
commit 42a2bec082
1 changed files with 2 additions and 1 deletions
--- a/plot.c
+++ b/plot.c
@ -323,7 +323,8 @@ float sa_sqrtf(const float x)
  return u.x;
 }
 #else
-#define sa_sqrtf(x) sqrtf(x)
+//#define sa_sqrtf(x) sqrtf(x)
+__attribute__((always_inline)) __STATIC_INLINE float sa_sqrtf(float x){__asm__ ("vsqrt.f32 %0, %1" : "=t"(x) : "t"(x)); return x;}
 #endif

 // Function for convert to different type of values from dBm