diff --git a/src/main.cpp b/src/main.cpp
index f72e353..d297b2d 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,7 +1,13 @@
 #include "bsp.h"
 
+int add(int a,int b)
+{
+    return a+b;
+}
+
 int main()
 {
+
     bsp_init_cpu();
 
     while(true)