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
    uint8_t baud_len = 4; //Allowed bit length
    uint8_t baud_pos = 8; //Baud bit startin position
    uint32_t baud_buff = baud; //Store baud in a 32 bit buffer

    baud_buff &= ((1 << baud_len) - 1);
    baud_buff <<= baud_pos;
    reg &= ~(((1 << baud_len) - 1) << baud_pos);
    reg |= baud_buff;
    return reg;
}

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