hah had the same code
here is the list
80000001: A
80000002: B
80000004: X
80000008: Y
80000010: Left Stick Pressed
80000020: Right Stick Pressed
80000040: L
80000080: R
80000100: ZL
80000200: ZR
80000400: Plus
80000800: Minus
80001000: Left
80002000: Up
80004000: Right
80008000: Down...