26. Extract and Modify Field in a 32-bit Register

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

uint32_t update_register(uint32_t reg) {
    // Your logic here
    //extract bitfield
    uint32_t mask = 0x1F;
    uint32_t extr =(reg>>10) & mask;
    
    //check bitfield
    if(extr<31){
        extr+=1;
    }
    //update bitfield
    reg =reg& ~(mask<<10)|(extr<<10);

    return reg;
}

int main() {
    uint32_t reg;
    scanf("%u", &reg);
    uint32_t updated = update_register(reg);
    printf("%u", updated);
    return 0;
}