def check_size(self, size):
AtrHeader.check_size(self, size)
if size != 143360:
raise InvalidDiskImage("Incorrect size for DOS 3.3 image")
def __init__(self):
AtrHeader.__init__(self, None, 256, 0)
self.starting_sector_label = 0
self.header_offset = 0
self.sector_order = range(16)
self.vtoc_sector = 17 * 16