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4 bit alu

Discussion in 'Electronic Design' started by [email protected], Feb 4, 2009.

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  1. Guest

    can you tell me how to make a4 bit alu. i know that the fulladders
    will be cascaded easley but i dont understand how to implement the

    thanks for helping.
  2. Guest

  3. krw

    krw Guest

    With a multiplexor?

    If S=1 then A <= X else A <= Y
    A = (S AND X) or (/S AND Z)

    Where: S = Input select (scalar)
    X, Y = Inputs buses (vector)
    A = Result bus (vector)
  4. krw

    krw Guest

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