Making a 1-bit adder using a Mux

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jwatts

Joined Mar 10, 2008
3
So I have a homework problem where I have to make a 1 bit adder using a 4:1 Mux. Anyone have any ideas on this?
 

Papabravo

Joined Feb 24, 2006
13,933
Let's have a quick review.

A one-bit adder has 2 input bits and one result bit. The two input bits represent one of four possible conditions.

A 4:1 multiplexer has four inputs and one output and TWO select bits. The two select bits select one of four possible constants (either 0 or 1) which can be routed to the output.

Are you starting to get the idea?
 
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