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IFV IEV SVA isunknown

  • i want to check these assume properties are correct

    Hi, I wrote some of the assumptions in my fifo design and now the assertion passing in my design.Before assemptions that assert property was failing. assumptions are as below: ///Assumtion to check underflow: assume_underflow :assume property(assume_property_underflow) $info("assumption holds"...
    Posted to Functional Verification (Forum) by BharathECE on Thu, Nov 21 2013
  • Adding automatic assertions in IFV?

    I've used the assertion -add -automatic command. But this doesn't add any assertions, but gives a warning saying: Session does not have any assertion. It runs user-defined assertions. Also, when the command is run with this, it says 0 assertions added. How do I rectify this?
    Posted to Functional Verification (Forum) by Buvna on Fri, May 31 2013
  • uninitialized state elements

    Hi, I have some of the stateelements uninitialized in my design.What could be the reason they are uninitialized.What will be the problems we will be having if we have uninitialized state elements. want to understand with an example what are unitialized elements and debug. Thanks Bharath
    Posted to Functional Verification (Forum) by BharathECE on Fri, May 24 2013
  • Re: Questions about IFV - PLS Help! - New to IFV

    Hi Whitegold, IFV has builtin support for the isunknown function already. Today $isunknown(net) maps to (net === 1'bz). In case of Boolean nets, this will be false. In case of a tristate signal or vector, it will check if any bit in the the vector can go to Z. Note that we do not check for X today...
    Posted to Functional Verification (Forum) by JoergM on Mon, Jan 24 2011
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