#include <stdio.h> #include <stdint.h> // Define macros here #define set_enable(x) (((x)&0x1)<< 0) #define set_mode(x) (((x)&0x3)<< 1) #define set_speed(x) (((x)&0x7)<< 3) uint16_t build_register(uint8_t enable, uint8_t mode, uint8_t speed) { // Use macros to set fields uint16_t res; res|=set_enable(enable); res|=set_mode(mode); res|=set_speed(speed); return res; } 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; }
Test Cases
Test Results
Input
1 2 4
Expected Output
37