diff --git a/internal/c/libqb.cpp b/internal/c/libqb.cpp
index f17b95401..592b9f482 100644
--- a/internal/c/libqb.cpp
+++ b/internal/c/libqb.cpp
@@ -29741,3 +29741,9 @@ void reinit_glut_callbacks(){
         
     #endif
 }
+
+int64 _SHL(int64 a1,int b1) 
+{return a1<<b1;}
+
+int64 _SHR(int64 a1,int b1) 
+{return a1>>b1;}