How do you link ALUs together to do that flow down thing? I am not really good with names of everything, but you know the thing with an 4 ALUs go down to 2 and those go down to 1? I have an 8 bit ALU. Does each of the 4 ALUs get their own inputs, or is the Not B the same for two? Is the output from on the As for the next and the output of the other is the Bs for the next? What about the Cout, Zero, and Overflow? How do those get inputed into the next level?