def bitstrBE(byte):
    """
    make a bit string from big endian byte

    :param byte byte: a byte
    :return: a string of ones and zeros, the bbits in the byte
    """
    bits = ''
    for i in range(8):
        if byte[0] >> i & 1:
            bits += '1'
        else:
            bits += '0'
    return bits
