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 copy=reg;
    reg=(reg>>10)&31;
    if(reg<31)
    {
        reg++;
    }
    copy&=~(31<<10);
    copy|=reg<<10;
    return copy;
}

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