RUNT PERFECT MET DEZE CODE:

        // read start address and memory size
        printf("enter start address <hex-notation> of dump: ");
        scanf("%16lx", &start_addr);


        printf("enter number of bytes to dump <negative or positive value>: " );
        scanf("%3d", &number_of_bytes);

        printHeader();
        printOut(start_addr, number_of_bytes);



ELKE KEER SEGFAULT MET DEZE

        sscanf(argv[1], "%16lx", &start_addr);
        sscanf(argv[2], "%3d", &number_of_bytes);
        printHeader();
        printOut(start_addr, number_of_bytes);