Need help understanding And16.hdl

Posted by Mshada on Mar 09, 2010; 12:23am
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/Need-help-understanding-And16-hdl-tp436618.html

here's what i have, but it's not working, it fails the comparison @ line 4 of the compare file.
it outputs
0000000000000001

where it should be
1111111111111111

can anyone see what I've done wrong?
Thanks.
[code removed by request]
(nand'd improperly)