Re: Issue with 8-bit adder

Posted by kingpinzs on Jan 20, 2013; 2:57am
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/Issue-with-8-bit-adder-tp4026131p4026133.html

this is what I have

CHIP Add4 {
    IN a[4], b[4],c;
    OUT out[4],carry,OvF;

    PARTS:
        HalfAdder(a=a[0],b=b[0], sum=out[0], carry=c1);
               
        FullAdder(a=a[1],b=b[1],c=c1,sum=out[1],carry=outa3);
       
        FullAdder(a=a[2],b=b[2],c=c1,sum=out[2],carry=outa4);
       
        FullAdder(a=a[3],b=b[3],c=outa4,sum=out[3],carry=outa5);