How to use 4-bit parallel adders to perform 2Cs' subtraction?

  • Thread starter chipmunk22
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  • #1
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Main Question or Discussion Point

Does anyone know how to use 4-bit parallel adders to perform 2Cs' subtraction? Thanks.
 
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Answers and Replies

  • #2
1,482
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Just complement one input with inverters and add it to the other input.
 
  • #3
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oh i see. Thks!
 

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