display.lua

local display = {
    {1, 0, 0, 0, 0, 0, 0, 0},
    {0, 1, 0, 0, 0, 0, 0, 0},
    {0, 0, 1, 0, 0, 0, 0, 0},
    {0, 0, 0, 1, 0, 0, 0, 0},
    {0, 0, 0, 0, 1, 0, 0, 0},
    {0, 0, 0, 0, 0, 1, 0, 0},
    {0, 0, 0, 0, 0, 0, 1, 0},
    {0, 0, 0, 0, 0, 0, 0, 1},
    {0, 0, 0, 0, 0, 0, 1, 0},
    {0, 0, 0, 0, 0, 1, 0, 0},
    {0, 0, 0, 0, 1, 0, 0, 0},
    {0, 0, 0, 1, 0, 0, 0, 0}
}

local COLUMN_SIDES = {
    "front",
    "front",
    "left",
    "left",
    "back",
    "back",
    "top",
    "top",
    "right",
    "right",
    "bottom",
    "bottom"
}

function print_column(column_number, data)
    local side = COLUMN_SIDES[column_number]
    local current = redstone.getBundledOutput(side)
    local row_value = data[1] + bit.blshift(data[2], 1) + bit.blshift(data[3], 2) + bit.blshift(data[4], 3) + bit.blshift(data[5], 4) + bit.blshift(data[6], 5) + bit.blshift(data[7], 6) + bit.blshift(data[8], 7)
    if column_number % 2 ~= 0 then
        -- odd / impar
        row_value = row_value + bit.band(current, 0xff00)
    else
        -- even / par
        row_value = bit.band(current, 0x00ff) + bit.blshift(row_value, 8)
    end
    redstone.setBundledOutput(side, row_value)
end

print_column(1, display[1])
print_column(2, display[2])
print_column(3, display[3])
print_column(4, display[4])
print_column(5, display[5])
print_column(6, display[6])
print_column(7, display[7])
print_column(8, display[8])
print_column(9, display[9])
print_column(10, display[10])
print_column(11, display[11])
print_column(12, display[12])