def check_encoding(self, f=sys.stdout):
    if (self.signed_offset == 0):
        f.write('error: "goto" has a zero offset  (invalid encoding)\n')
    return 0
def check_encoding(self, f=sys.stdout):
    if (self.signed_offset == 0):
        f.write('error: "goto" has a zero offset  (invalid encoding)\n')
    return 0