Macro-Based Register Config Helper

Code

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

#define EnableBit(x) ((x & (0x01))<<0)
#define ModeBit(x) ((x & (0x03))<<1)
#define SpeedBit(x) ((x & (0x07))<<3)

uint16_t build_register(uint8_t enable, uint8_t mode, uint8_t speed) {
    uint16_t register1=0;
    register1 |=EnableBit(enable);
    register1 |=ModeBit(mode);
    register1 |=SpeedBit(speed);
    return register1;
}

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