.html#stack'>Fractran stack machine</a>.</p>
<pre>
echo(dup(swap(push(push(push(push(1, 0), 1), 0), 1))));

<i>0 1 0 1 swap dup .</i>
</pre>

<table border='1'>
	<tr><th>16</th><td>.. 0 0 0 0 </td> <th>17</th><td>.. 1 0 0 0 </td></tr>
	<tr><th>24</th><td>.. 0 0 0 1 </td> <th>25</th><td>.. 1 0 0 1 </td></tr>
	<tr><th>20</th><td>.. 0 0 1 0 </td> <th>21</th><td>.. 1 0 1 0 </td></tr>
	<tr><th>28</th><td>.. 0 0 1 1 </td> <th>29</th><td>.. 1 0 1 1 </td></tr>
	<tr><th>18</th><td>.. 0 1 0 0 </td> <th>19</th><td>.. 