--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/io.h	Tue Jun 25 19:20:39 2013 -0700
@@ -0,0 +1,29 @@
+#ifndef IO_H_
+#define IO_H_
+#include <stdint.h>
+
+typedef struct {
+	uint32_t th_counter;
+	uint32_t timeout_cycle;
+	uint8_t output;
+	uint8_t control;
+	uint8_t input[3];
+} io_port;
+
+#define GAMEPAD_TH0 0
+#define GAMEPAD_TH1 1
+#define GAMEPAD_EXTRA 2
+#define GAMEPAD_NONE 0xF
+
+void set_keybindings();
+void io_adjust_cycles(io_port * pad, uint32_t current_cycle, uint32_t deduction);
+void io_data_write(io_port * pad, uint8_t value, uint32_t current_cycle);
+uint8_t io_data_read(io_port * pad, uint32_t current_cycle);
+void handle_keydown(int keycode);
+void handle_keyup(int keycode);
+void handle_joydown(int joystick, int button);
+void handle_joyup(int joystick, int button);
+void handle_joy_dpad(int joystick, int dpad, uint8_t state);
+
+#endif //IO_H_
+