23. 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

    // Firsly clear the bits from 8 to 11
    //uint8_t mask = ((1 << 4) - 1) << 8;
    // reg &= ~mask;
    reg &= ~(0xF << 8);
    // Set the new bits
    reg |= (baud & 0xF) << 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;
}