#include <stdio.h>

/*
Program to swap 1st and 2nd bit of hexadecimal value stored in data variable
*/

int main()
{
    unsigned char data = 0xA; // Assiging hexadecimal value since 1byte data

    // Get 1st bit from data
    unsigned char bit_1 = (data >> 1) & 1; // 10100000 -> (01100000) & 00000001 

    // Get 2nd bit from data
    unsigned char bit_2 = (data >> 2) & 1;

    // Get XOR of bit_1 and bit_2
    unsigned char xor_of_bit = bit_1 ^ bit_2;

    printf("After swapping the bits, data value is: %2X", data ^ (xor_of_bit << 1 | xor_of_bit << 2));

    int a = 0xA; //1010

    int bit1 = (a >> 3) & 1; // it will get the bit by bit value usefull fun
    //1010 >> 0001 & 1 //shift position  >> entire byte
    //if 2 : 1010 >> 0010 & 1 = 0
    //if 1 : 1010 >> 0101 & 1 = 1
    printf("%d",bit1);
    return 0;
}