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

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

uint32_t update_register(uint32_t reg) {
    uint32_t x=0;
    x=0x1F&(reg>>10);
    if(x==31)return reg;
    else
        {
            reg&=~((0x1F)<<10);
            reg|=(x+1)<<10;
            return reg;
        }

}

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