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    Navigation: All forums > Cores > Message List > Message Post

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    From: Joachim Strömbergson<Joachim.Strombergson@I...>
    Date: Mon, 09 Dec 2002 10:35:29 +0100
    Subject: Re: [oc] "1/x" function
    Top

    Aloha!
    
    Rudolf Usselmann wrote:
    > Anybody have an efficient algorithm for a "1/x" function for
    > hardware implementations ? Or any pointer to white papers, etc ?
    > I need something that is fast and small, and can be pipelined.
    
    I recommend Parhamis book "Computer Arithmetic", see for example chapter 16.5 
    about HW-implementation of convergence division algorithms. Both pipeline 
    estimation and LUT-size estimation.
    
    Some other person mentioned Reto Zimmermann. He has some great info, albeit 
    possibly not very helpful for this problem.
    
    BTW: How about CORDICs? Shouldn't they be useful for this, at least as an 
    approximation?
    
    -- 
    Med vänlig hälsning, Yours
    
    Joachim Strömbergson - Alltid i harmonisk svängning.
    VP, Research & Development
    ----------------------------------------------------------------------
    InformAsic AB / Hugo Grauers gata 5B / SE-411 33 GÖTEBORG / Sweden
    Tel: +46 31 68 54 90  Fax: +46 31 68 54 91  Mobile: +46 733 75 97 02
    E-mail: joachim.strombergson@i...  Home: www.informasic.com
    
    
    
    
    

    ReferenceAuthor
    [oc] "1/x" functionRudolf Usselmann

    Follow upAuthor
    Re: [oc] "1/x" functionRudolf Usselmann

     
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