Macro-Based Register Config Helper

Code

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

#define ENABLE 0
#define MODE 1
#define SPEED 3



uint16_t build_register(uint8_t enable, uint8_t mode, uint8_t speed) {
   
   uint16_t reg = 0;
  reg |= (enable & 0x01) << ENABLE;
  reg |= (mode & 0x03) << MODE;
  reg |= (speed & 0x07) << 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