Set Baud Rate Field in Control Register

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

uint32_t set_baud_rate(uint32_t reg, uint8_t baud) {
    // Your code here
    //
    uint32_t mask = ((1<< 4) -1);
    // clear reg at 8 -- 11 bits
    reg &= ~((mask) << 8);
    //
    reg |= ((baud & mask) << 8);


    return reg;
}

int main() {
    uint32_t reg;
    uint8_t baud;
    scanf("%u %hhu", &reg, &baud);
    printf("%u", set_baud_rate(reg, baud));
    return 0;
}