Macro-Based Register Config Helper

Code

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

// Define macros here
#define SetEnable(r,a) ((r) |= a);
#define SetMode(r,a) ((r) |= (a << 1));
#define SetSpeed(r,a) ((r) |= (a << 3));

uint16_t build_register(uint8_t enable, uint8_t mode, uint8_t speed) {
    uint16_t reg = 0x0000;
    SetEnable(reg, enable);
    SetMode(reg, mode);
    SetSpeed(reg, speed);
    return reg;



}

int main() {
    uint8_t enable, mode, speed;
    scanf("%hhu %hhu %hhu", &enable, &mode, &speed);

    uint16_t reg = build_register(enable, mode, speed);
    printf("%u", reg);
    return 0;
}

Solving Approach