$char = chr($this->_read($this->_memory[$i + 1]));
echo $char;
$i += 2;
break;
case 20:
// in
$a = $this->_memory[$i + 1];
$c = ord(fgetc($in));
// windows sends \r\n upon enter, ignore the 13
if ($c == 13) {
// get the ascii 10
$c = ord(fgetc($in));
}
$this->_write($a, $c);
$i += 2;
break;
case 21:
// noop
$i++;
break;
default:
die("unknown op: {$op}");
break;
}
}
}
}
$m = new Machine();
$m->load('challenge.bin');
$m->run();
