+void *gp2x_video_flip = gp2x_video_flip_;
+void *gp2x_video_flip2 = gp2x_video_flip_;
+void *gp2x_video_changemode_ll = gp2x_video_changemode_ll_;
+void *gp2x_video_setpalette = gp2x_video_setpalette_;
+
+void *gp2x_video_RGB_setscaling = do_nothing;
+void *gp2x_video_wait_vsync = do_nothing;
+void *gp2x_set_cpuclk = do_nothing;
+void *gp2x_read_battery = do_nothing;
+void *set_lcd_custom_rate = do_nothing;
+void *unset_lcd_custom_rate = do_nothing;
+void *set_lcd_gamma = do_nothing;
+void *set_ram_timings = do_nothing;
+void *unset_ram_timings = do_nothing;
+
+/* joy */
+int gp2x_touchpad_read(int *x, int *y)