Natural Binary to 2's comp converter

Discussion in 'Homework Help' started by Tera-Scale, Jan 23, 2011.

  1. Tera-Scale

    Thread Starter Active Member

    Jan 1, 2011
    164
    5
    Attached is a question with my answer. This is a 2's complement converter which I designed. My problem is the MSB output because I had to eliminate an XOR gate in the input for the graph to match my truth table. Any help would be much appreciated.
     
  2. Georacer

    Moderator

    Nov 25, 2009
    5,142
    1,266
    I think your circuit is correct. But the exercise asks you to make a circuit for 3 bits + sign not 4 +sign. Not that it is a mistake or anything...
     
    Tera-Scale likes this.
  3. Tera-Scale

    Thread Starter Active Member

    Jan 1, 2011
    164
    5
    Oki.. I did the fourth half adder to check the overflow. Thanks I check it again.
     
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