Re: FullAdder imp.
Posted by
pLaQNo1 on
Nov 24, 2012; 11:01am
URL: http://nand2tetris-questions-and-answers-forum.52.s1.nabble.com/FullAdder-imp-tp4025675p4025686.html
cadet1620 wrote
The second half adder adds
carry<sub>1</sub> and
c producing
sum<sub>2</sub>=0,
carry<sub>2</sub>=1.
<p>
sum<sub>2</sub> is the
sum output from the full adder.
carry<sub>1</sub> and
carry<sub>2</sub> need to be combined in some fashion to produce the full adder's
carry output.
<p>
--Mark
I think you made a typo.
Shouldn't you add
sum1 and
c to get the final
sum?