+// Screen writes are also sent to debug ports.
+#define CONFIG_SCREEN_AND_DEBUG 1
+
+// Support running hardware initialization in parallel
+#define CONFIG_THREADS 1
+// Allow hardware init to run in parallel with optionrom execution
+#define CONFIG_THREAD_OPTIONROMS 0
+// Support int13 disk/floppy drive functions
+#define CONFIG_DRIVES 1
+// Support floppy drive access
+#define CONFIG_FLOPPY 1
+// Support USB devices
+#define CONFIG_USB 1
+// Support USB UHCI controllers
+#define CONFIG_USB_UHCI 1
+// Support USB OHCI controllers
+#define CONFIG_USB_OHCI 1
+// Support USB disks
+#define CONFIG_USB_MSC 1
+// Support USB hubs
+#define CONFIG_USB_HUB 1
+// Support USB keyboards
+#define CONFIG_USB_KEYBOARD 1
+// Support PS2 ports (keyboard and mouse)
+#define CONFIG_PS2PORT 1