Set Baud Rate Field in Control Register

Code

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

uint32_t set_baud_rate(uint32_t reg, uint8_t baud) {
    // Your code here
   // Step 1: Clear bits 8 to 11
    uint32_t clear_mask = ~(15 << 8);  // 15 = 0b1111 → 4 bits
    reg = reg & clear_mask;

    // Step 2: Insert new baud value at position 8
    baud = baud & 15; // make sure only 4 bits are used
    reg = reg | (baud << 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;
}

Solving Approach