#include <stdio.h>
#include <stdint.h>

#define N_BITS 32

// extract the nth bit from a value , assuming lsb is bit 0
// Assume n is 4
//  76543210
//     * 
//  xxxXxxxx >> 4
//  0000xxxX &
//  00000001
//  

// extract the nth bit from a value, assuming lsb is bit 0
int get_nth_bit(uint32_t value, int n) {
     uint32_t result = value >> n;
     result = result & 1;
     return result;
}

// print the value in binary
// MSB = bit 31
// LSB = bit 0
// *                           *
// 10000101001010101010101010110
void print_bits(uint32_t value) {
    // print bits from most significant to least significant
    for (int i = N_BITS - 1; i >= 0; i--) {
        int bit = get_nth_bit(value, i);
        printf("%d", bit);
    }
} 

int main(void){
    //1000
    int bit = get_nth_bit(0x8, 3);
    printf("bit 3 of 0x8 is %d\n",bit);
    bit = get_nth_bit(0x8, 2);
    printf("bit 2 of 0x8 is %d\n",bit);
    
    print_bits(0x0);
    printf("\n");
    print_bits(0xFFFFFFFF);
    printf("\n");
    print_bits(0xFFAA1201);
    printf("\n");
    return 0;
}