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

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

uint32_t update_register(uint32_t reg) {
    uint8_t value;
    uint32_t mask=((1U<<5)-1)<<10;
    value=(reg>>10)&(0x1F);
    if(value<31){
    value+=1;
    }
    reg&=~mask;
    reg|=(value<<10);
    return reg;
}

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