Re: ALU ouptut flags

Posted by jkordani on Aug 11, 2010; 6:07pm
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/ALU-ouptut-flags-tp942429p1091488.html

I am in the same boat as you tony.  It appears that you can not split internal pins.  you have to make a new chip and split the internal pin in your chip on the interface boundary for a sub part.  So far, I have not had to make chips that have not been specified, but for this I am stuck.  Have you had success?  I trust the authors when they say that there is no need to use chips they haven't specified to this point, but maybe I'm taking that too literally.


edit:
SPOILER
The hint for each problem is that you can do this with the output of a part (out[0] = w9, out = out.)
you can use something like this for NG.
You can do the same thing to push output in half to two Or8Way, or just make your own Or16Way.