Generator of logisim table for EPFL's CS-171 course's 3rd lab

tp3_sub.c

#include <stdio.h>


void print_number(char num, int bitsize) {
   while(bitsize--) {
        if(num & (1 << bitsize))
            printf("1");
        else
            printf("0");
        printf("\t");
   } 
}


void main(void) {
    char a, b;
    printf("A3\tA2\tA1\tA0\tB3\tB2\tB1\tB0\tQ\tC3\tC2\tC1\tC0\n");

    for(a=0;a<16;a++) {
        for(b=0;b<16;b++) {
            print_number(a, 4);
            print_number(b, 4);
            print_number(a-b, 5);
            printf("\n");
        }
    } 
}