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 reg1 = reg >> 10;
    uint32_t mask = ((1<<5)-1);
    if(reg1<31) reg1+=1;
    reg = (reg & ~(mask << 10)) | (reg1 << 10);
    return reg;
}

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