Re: ZR and NG using 16wayOR gate?

Posted by guynextdoor on Jul 08, 2020; 5:01pm
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/ZR-and-NG-using-16wayOR-gate-tp4034824p4034828.html

Thank you and one last question, why do we need NOT gate to get ZR value? I understand the OR gate function, but why add NOT gate?

As I understand, any combination of 8 bits 1 or 0 can be fed to or8way and it outputs 1, if any of the bits are 1, the final output of the Or8way is either 0 or 1 depending on the 8 bit input.

So the way I understand is, if ALL bits have condition to 0. the OR8way gives a single bit output anyway. Even if the NOT gate takes this input, how does it imply if NOT gate takes in 0 or 1, and flips the value, it implies all inputs to the OR8way are 0??

Totally confused here, thank you for your explanation,