+ nedsim->nedstate = init_simulator(input_file, NULL, 0);
+ // Note: Since we're accepting this as a runtime CLI option, we really
+ // should verify that `heap_window_offset+num_data_rows` doesn't exceed
+ // the limits of NED's simulated RAM. However, since the RAM size is a
+ // #define located in the simulator itself, and since I mostly plan to
+ // use this screensaver with built-in programs, for now we'll just let
+ // it segfault if the user requests a window outside simulated RAM.
+ nedsim->heap_window_offset = get_integer_resource(nedsim->dpy, "heapwindow", "Integer");