#define GP2X_BUTTON_UP              (0)
#define GP2X_BUTTON_DOWN            (4)
#define GP2X_BUTTON_LEFT            (2)
#define GP2X_BUTTON_RIGHT           (6)
#define GP2X_BUTTON_UPLEFT          (1)
#define GP2X_BUTTON_UPRIGHT         (7)
#define GP2X_BUTTON_DOWNLEFT        (3)
#define GP2X_BUTTON_DOWNRIGHT       (5)
#define GP2X_BUTTON_CLICK           (18)
#define GP2X_BUTTON_A               (12)
#define GP2X_BUTTON_B               (13)
#define GP2X_BUTTON_X               (15)
#define GP2X_BUTTON_Y               (14)
#define GP2X_BUTTON_L               (10)
#define GP2X_BUTTON_R               (11)
#define GP2X_BUTTON_START           (8)
#define GP2X_BUTTON_SELECT          (9)
#define GP2X_BUTTON_VOLUP           (16)
#define GP2X_BUTTON_VOLDOWN         (17)
#define GP2X_NUM_BUTTONS            (19)
