Macro-Based Register Config Helper

Code

#include <stdio.h>
#include <stdint.h>
#define setbit(enable, mode, speed, reg) \
    reg | (enable<<0) | (mode<<1)| (speed<<3);


uint16_t build_register(uint8_t enable, uint8_t mode, uint8_t speed) {
    // Use macros to set fields
    uint16_t reg=0x00;
     return setbit(enable,mode,speed,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