(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Draw the logic block for the third cell (s2) if a full adder with carry look ahead show all inputs and output

write equation for Go Po So using inputs of AoBoCo

2. Relevant equations

3. The attempt at a solution

here is what i have, is this what they are asking?

here is a image

http://imageshack.us/photo/my-images/835/img0062jx.jpg/

ok so looking online it seems like im missing the lookahead on the bottom right it would look like this

http://en.wikipedia.org/wiki/File:4-bit_carry_lookahead_adder.svg

For the other part,

Po=Ao+Bo

Go=Ao*Bo

So=Ao+Bo+Cio

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# Full adder with look ahead carry

Can you offer guidance or do you also need help?

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