Re: Doubt

From: Fabio Somenzi (Fabio@colorado.edu)
Date: Fri Apr 05 2002 - 00:40:00 MST

  • Next message: vanessa goyal: "Re: Doubt"

    >>>>> "vg" == vanessa goyal <vanessa_goyal@rediffmail.com> writes:

     vg> Hello Sir,
     vg> In the arbiter example,suppose there is one more
     vg> primary input "enable".

     vg> Then there exists one more constraint(other than fairness
     vg> constraints) "enable should be high forever".

    It depends on how "enable" works, but normally one would want a
    constraint that says "enable should be high infinitely often."

     vg> Only under this constraint we can check any liveness property.

     vg> Can you please tell me the way I should apply this constraint in
     vg> CTL, along with fairness constraints.

    There should be a latched version of "enable," say "en_l." Then you
    just add the constraint

    en_l=1;

    to the other constraints.

    -- 
    Fabio Somenzi          | Phone: 303-492-3466
    University of Colorado | Fax:   303-492-2758
    ECE Dept.              | Email: Fabio@Colorado.EDU
    Boulder CO 80309-0425  | WWW:   http://vlsi.colorado.edu/~fabio
    



    This archive was generated by hypermail 2b30 : Fri Apr 05 2002 - 00:49:06 MST