diff --git a/trunk/research/frame/st0.cpp b/trunk/research/frame/st0.cpp
new file mode 100644
index 000000000..fad8ca94c
--- /dev/null
+++ b/trunk/research/frame/st0.cpp
@@ -0,0 +1,14 @@
+/*
+g++ st0.cpp ../../objs/st/libst.a -g -O0 -o st && ./st
+*/
+#include <stdio.h>
+#include "../../objs/st/st.h"
+
+int main(int argc, char** argv) {
+    st_init();
+    for (;;) {
+        st_usleep(1000 * 1000);
+    }
+    return 0;
+}
+