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rickholio · 04-26-2005, 11:23 AM

Wait, nm. My bad. I wasn't paying attention to the labels on the left... A inputs and B inputs are mixed... the low bits of both a and b are at that top XOR... this is indeed a 2 bit adder, with S3 representing the carry bit.

04-26-2005, 11:23 AM
rickholio Confirmed User Industry Role: Join Date: Jan 2004 Location: Nor'easterland Posts: 1,914	Wait, nm. My bad. I wasn't paying attention to the labels on the left... A inputs and B inputs are mixed... the low bits of both a and b are at that top XOR... this is indeed a 2 bit adder, with S3 representing the carry bit. Last edited by rickholio; 04-26-2005 at 11:26 AM..