def decode_register(register, value):
    """Decode decimal value for register

    Attributes:
        register (list): list of bit descriptions
        value (int): 0 to 255

    Returns:
        list of descriptions of bits that are set
    """
    set_bits = []
    for bit_description in register:
        if value & 1:
            if bit_description is not None:
                set_bits.append(bit_description)
        value = value >> 1
    return set_bits