BitOperators

//https://www.youtube.com/watch?v=8vxQqbFGW-E --> exchange of bits on a guiven position (39:51)
using System;

class BitwiseOperators
{
    static void Main()
    {
        ushort a = 3;                  // 00000000 00000011 = 3
        ushort b = 5;                  // 00000000 00000101 = 5

        Console.WriteLine( a | b);     // 00000000 00000111 = 7
        Console.WriteLine( a & b);     // 00000000 00000001 = 1
        Console.WriteLine( a ^ b);     // 00000000 00000110 = 6
        Console.WriteLine(~a & b);     // 00000000 00000100 = 4
        Console.WriteLine( a << 1 );   // 00000000 00000110 = 6
        Console.WriteLine( a >> 1 );   // 00000000 00000001 = 1
        Console.WriteLine( a >> 2 );   // 00000000 00000000 = 0
        Console.WriteLine( a << 2 );   // 00000000 00001100 = 12
        Console.WriteLine(~a);         // 11111111 11111100 = -4 = 65532
        Console.WriteLine((ushort)~a); // 11111111 11111100 = -4 = 65532

        // Find the bit at position p in n
        int p = 5;
        int n = 291;               // 00000001 00100011
        int nRightP = n >> p;      // 00000000 00001001
        int bit = nRightP & 1;     // 00000000 00000001
        Console.WriteLine(bit);    // 1

        // Set the bit at position p to 0 in a number n
        p = 5;
        n = 291;                   // 00000001 00100011
        int mask = ~(1 << p);      // 11111111 11011111
        int result = n & mask;     // 00000001 00000011
        Console.WriteLine(result); // 259
        Console.WriteLine(Convert.ToString(result, 2).PadLeft(16, '0'));

        p = 4;
        n = 291;                   // 00000001 00100011
        mask = 1 << p;             // 00000000 00010000
        result = n | mask;         // 00000001 00110011
        Console.WriteLine(result); // 307
        Console.WriteLine(Convert.ToString(result, 2).PadLeft(16, '0'));

        //check the bit and take it

        int mask = 1<<position;
        int result = mask & n;
        result = result >> position;

    //take the third bit
    int mask = 1<<3;
    int thirdBit = (n&mask)>>3;


    }
}