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adding full adder diagram

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shockrahwow 2018-10-03 00:04:50 -07:00
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cst337/lec/lec10.md
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@ -26,7 +26,7 @@ I __highly__ suggest that you try to build a logic circuit on your own first as
If we only want to add single-bit's then a half-adder works fine but if we want to add multiple bits say `1011 + 0010` then we need to consider that we will likely have to chain these together. If we only want to add single-bit's then a half-adder works fine but if we want to add multiple bits say `1011 + 0010` then we need to consider that we will likely have to chain these together.
The full-adder has 1 main difference from the half-adder, it has 3 inputs, 2 main inputs and 1 input for the carry bit. The full-adder has 1 main difference from the half-adder, it has 3 inputs, 2 main inputs and 1 input for the carry bit.
The carry bit will propagate along the operation now if we chain these together, _just like real addition_! The carry bit will propagate along the operation now if we chain these together, _just like real addition!_
![fig1](../img/fig1lec10.png) ![fig1](../img/fig1lec10.png)