def romdatas_have_duplicate_addresses(romdatas):
    """
    Check if any of the romdatas have duplicate addresses.

    Args:
        romdatas list(RomData): List of romdatas to check.
    Returns:
        Bool: Whether or not there were any duplicated addresses.
    """

    duplicates = False
    addresses = []
    for romdata in romdatas:
        if romdata.address in addresses:
            duplicates = True
            break
        else:
            addresses.append(romdata.address)
    return duplicates