Not16 failure in building the ALU

Posted by Becca on Nov 01, 2012; 8:26pm
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/Not16-failure-in-building-the-ALU-tp4025519.html

I am building the ALU but keep running into a problem where the Not16 gate seems to fail.  I have Not16(in=x, out=notx), but when I test it on the Hardware Simulator, notx is always equal to -1, regardless of what x is set equal to.  

I checked and I do not have the Not16 hdl file in my project folder, which I know could be interferring with the implementation of the builtin.  Does anyone have any ideas for why this test is failing?

Thank you!