I'm trying to understand how binary addition works.
If I understand it correctly, with two variables e.g.
y you add a third one called
c_i. On the other side, you add the
The rules as far as I understood them: If you have two 1's, you carry 1 out and the result is 0.
Here is what confuses me:
1) In normal addition, you would carry in the 1 you carry out to the next line. Why don't we do this here, and therefore, what happens to the carry outs?
2) why is the carry in an "input" of its own, shouldn't it be just
y since the carry ins/outs usually belong to one operation distinct from the values we use?
Thanks in advance!!