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
    uint32_t mask =  (1 << 5) - 1;
    uint8_t val = (uint8_t)((reg >> 10) & mask);
    if(val < 31) {
        val++;
        reg &= ~(mask << 10);
        reg |= ((uint32_t)val & mask) << 10;
        return  reg;
    }
    else return reg;
}

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