$602A: 20 -> 2C to skip input selection (context is 20059E)
$9FF7: AD00C0 -> 4C0001 to exit on keypress (context is 2C00C0300160AD00C085086512)
$9FDC: 4CCC9E -> 4C0001 to exit after demo cycle (context is CEDD06D0E54CCC9E)
no sound