Question

How to get the 4 least significant bits in a byte with C#

Answer 1

using System;

class Program
{
    static void Main()
    {
        byte value = 0b1101_0110;
        int lower4 = value & 0x0F;

        Console.WriteLine("value  (dec): " + value);
        Console.WriteLine("lower4 (dec): " + lower4);

        Console.WriteLine("value  (bin):  " +
            Convert.ToString(value, 2).PadLeft(8, '0'));

        Console.WriteLine("lower4 (bin):  " +
            Convert.ToString(lower4, 2).PadLeft(4, '0'));
    }
}



/*
run:

value  (dec): 214
lower4 (dec): 6
value  (bin):  11010110
lower4 (bin):  0110

*/

 

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