Extract the Nibble from an 8-bit Register

Solving Approach

How do you plan to solve it?

Code

#include <stdio.h>

unsigned char extractNibble(unsigned char reg, int pos) {
    // Write your code here
    if(1 == pos)
    {
        reg &= 0x00F0 >> 0x04;
        // printf(" Pos = %d., Reg = %d", pos, reg);
    }
    else
    {
        reg &= 0x000F;
        //printf(" Pos = %d., Reg = %d", pos, reg);
    }
    return reg;
}

int main() {
    unsigned char reg;
    int pos;
    scanf("%hhu%d", &reg, &pos);
    printf("%d", extractNibble(reg, pos));
    return 0;
}