very important question ( must see)

Discussion in 'The Projects Forum' started by mohsen, Oct 24, 2010.

  1. mohsen

    Thread Starter Active Member

    Oct 24, 2008
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    let's say i have 2 BCD input each input has 4 bit
    and i want to swap the input order if the first input is higher than the second input.
    is there a chip can do me this even in binary!!!!!! or what is the method that i can do in order to do this.

    because i'm doing subtraction in 2 full adder and i want to swap the input order in order to get the number in positive and will have the carry as the negative sign ^_^
     
  2. Kermit2

    AAC Fanatic!

    Feb 5, 2010
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  3. mohsen

    Thread Starter Active Member

    Oct 24, 2008
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    i don't understand your post, how can i implement it!! it seams that associated with voltage
     
  4. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
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    Look up Magnitude Comparator, one option is the 74F85
     
  5. mohsen

    Thread Starter Active Member

    Oct 24, 2008
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    well i got it work ^_^ thanks for the help of the magnitude comparator
    it helped me a lot i knew how to figure out the rest
     
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