diff --git a/npc/csrc_nvboard/Flow/main.cpp b/npc/csrc_nvboard/Flow/main.cpp
index 28bde4d..0a41d9f 100644
--- a/npc/csrc_nvboard/Flow/main.cpp
+++ b/npc/csrc_nvboard/Flow/main.cpp
@@ -8,12 +8,5 @@ const int MAX_SIM_TIME=100;
 // void nvboard_bind_all_pins(VFLow* top);
 
 int main(int argc, char **argv, char **env) {
-    VFlow *top = new VFlow;
-
-    // nvboard_init();
-    while (true) {
-        // nvboard_update();
-        top->eval();
-    }
-    delete top;
+    return 0;
 }
\ No newline at end of file