TecomTech MLS build: .NET 6

Program.cs

using System.Text;

var g_local = g("1+x3+x4", bitRate: 4);
List<bool> register0 = new() { true, true, true, true };


printShiftRegister(g_local, @default: true);
printShiftRegister(g_local);

printTable(g_local, register0, 20);



List<bool> g(string x, int bitRate)
{
    List<bool> g = new();
    var polynomials = x.Split('+').SkipWhile(p => p.Equals("1") || p.Length < 2).Select(p => p[1..]).ToList();
    for (int i = 1; i <= bitRate; i++)
        g.Add(polynomials.Contains($"{i}"));
    return g;
}

string tableSide(int i) => new List<string>() { "─", "┴", "└", "┘" }[i];

void printShiftRegister(List<bool> g, bool @default = false)
{
    StringBuilder sb = new();
    sb.Append(tableSide(2));
    if (@default is true)
    {
        for (int i = 0; i < g.Count; i++)
            sb.Append($"S{i + 1}{tableSide(1)}");
        Console.WriteLine("Default table:");
    }
    else
    {
        for (int i = 0; i < g.Count; i++)
            sb.Append($"S{i + 1}{tableSide(Convert.ToInt32(g[i]))}");
        Console.WriteLine("Optimal table:");
    }
    Console.WriteLine($"{sb.ToString()[..^1]}{tableSide(3)}");
}

void printTable(List<bool> g_local, List<bool> register0, int times = 16)
{
    List<List<bool>> table = new();
    table.Add(register0);

    for (int i = 0; i <= times; i++)
    {
        table.Add(new List<bool>());

        bool? el1 = null;
        g_local.Select((gi, idx) => (gi, idx))
            .Where(gi => gi.gi != false)
            .ToList()
            .ForEach(gi =>
            {
                if (el1 is null)
                    el1 = table[^2][gi.idx];
                else
                    el1 ^= table[^2][gi.idx];
            });

        table[^1].Add(el1 ?? false);

        for (int j = 0; j < g_local.Count - 1; j++)
        {
            table[^1].Add(table[^2][j]);
        }
    }

    Console.WriteLine($"Time\t| {string.Join(" | ", Enumerable.Range(0, g_local.Count).Select(n => $"S{n + 1}"))}");
    table.Select((t, idx) => (t, idx)).ToList().ForEach(t =>
    {
        Console.WriteLine($"{t.idx} \t| {string.Join("  | ", t.t.Select(i => Convert.ToUInt16(i)))}");
    });
}