19. Extract a Bit Field from a 32-bit Register

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

uint32_t extract_field(uint32_t reg, uint8_t pos, uint8_t len) {
 uint8_t d=pos;
 uint32_t c=0;

  for(int i=len; i>0;i--)
  {
    c |= (reg&(1<<d));
    d++;
  }
    // Your code here
    c=(c>>pos);
    return c;
    
}

int main() {
    uint32_t reg;
    uint8_t pos, len;
    scanf("%u %hhu %hhu", &reg, &pos, &len);
    printf("%u", extract_field(reg, pos, len));
    return 0;
}