23. Set Baud Rate Field in Control Register

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

#define baud_msk (0xF << 8)

uint32_t set_baud_rate(uint32_t reg, uint8_t baud) {
    // Your code here

    reg &= ~ baud_msk; // clear baud reg

    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;
}