Question about example prob. given in ALU

Posted by JerJohnson on Oct 28, 2012; 11:40pm
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/Question-about-example-prob-given-in-ALU-tp4025467.html

I have a question regarding the worked out example that the book explains on page 35 in chapter 2. In order to determine the inputs for the function x-1, they are using the boolean values of 1 and 0, 1 being true and 0 false. So when the bit is 0, the x input is not zeroed or negated, and the no bit is not negated, and when 1, y is zeroed then negated bitwise, and the arithemitic is addition. I'm I correct?