Lab 1: Hello World

/* 

 * File:   Hello_World_main.c

 * Author: Richard Luo and Jerry Xu

 *

 * Created on July 12, 2018, 11:10 AM

 */

#include <stdio.h>

#include <stdlib.h>

#include "serial.h"

#include "BOARD.h"

#include "roach.h"

#include "timers.h"

/**

 * Prints all the fibonacci numbers up until the max value of an unsigned int

 */

void fib() {

    unsigned int x = 1, y = 1;

    printf("1\r\n");

    while (1){

        printf("%u\r\n", x);

        unsigned int z = y;

        y = x;

        x += z;

        //Don't want to overflow

        if(x < z) return;

    }

}

int main(int argc, char** argv) {

    SERIAL_Init();

    BOARD_Init();

    Roach_Init();

    fib();

    printf("\r\n");

    //Everything down here is playing with conditionals-------------------------

    int grade = 12;

    //Test which school

    switch(grade) {

        case 1 ... 5:

            printf("Elementary School!\r\n");

            break;

        case 6 ... 8:

            printf("Middle School!\r\n");

            break;

        case 9 ... 12:

            printf("High School!\r\n");

            break;

    }

    if (grade > 0 && grade < 6){

        printf("Elementary School!\r\n");

    }

    else if (grade > 5 && grade < 9) {

        printf("Middle School!\r\n");

    }

    else if (grade > 8 && grade <13) {

        printf("High School!\r\n");

    }

    else {

        printf("Not in school!\r\n");

    }

    while(1);

}