--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/include/origin_cs.h	Tue Apr 07 15:39:14 2015 +0900
@@ -0,0 +1,18 @@
+__code start_code();
+__code meta_start_code();
+__code exit_code();
+
+__code start_code(Context* context, __code (*next)()) {
+    goto meta_start_code(context, next);
+}
+
+__code meta_start_code(Context* context, __code (*next)()) {
+    context->next = next;
+    goto context->next(context);
+}
+
+__code exit_code(Context* context) {
+    free(context->ds_heap);
+    free(context->mds_heap);
+    goto exit(0);
+}