addbddassoc

ADDBDDASSOC(3)                   BDD FUNCTIONS                  ADDBDDASSOC(3)



NAME
       addbddassoc - creates a new association variables.


ORIGIN
       This software belongs to the  ALLIANCE CAD SYSTEM developed by the ASIM
       team at LIP6 laboratory of Université Pierre et Marie CURIE, in Paris,
       France.

       Web : http://asim.lip6.fr/recherche/alliance/
       E-mail : alliance-users@asim.lip6.fr


SYNOPSYS
       #include "bdd101.h"
       bddassoc ∗addbddassoc( BddSystem )
         bddsystem  ∗BddSystem;

PARAMETERS
       BddSystem           The bdd system.

DESCRIPTION
       addbddassoc creates a new association variables in the bdd system
       BddSystem.  If a null pointer is given, the default bdd system is used.

RETURN VALUE
       addbddassoc returns a pointer to the new variable association.

ERRORS
       "no more variable association, error !"
              There is no variable association number left.

EXAMPLE
       #include "bdd101.h"
          bddsystem  ∗BddSystem;
          bddcircuit ∗BddCircuit;
          bddnode    ∗BddNode;
          bddnode    ∗BddSubst;
          bddnode    ∗BddVariable;
          bddassoc   ∗Assoc;
          chain_list ∗Expr;
          bddvar         Variable;
          BddSystem  = createbddsystem( 100, 1000, 100, 50000 );
          BddCircuit = createbddcircuit( "hello_world", 10, 10, BddSystem );
          Expr = createablbinexpr( ABL_AND,
                                   createablatom( "i0" ),
                                   createablatom( "i1" ) );
          BddNode = addbddcircuitabl( BddCircuit, Expr );
          freeablexpr( Expr );
          Expr = createablbinexpr( ABL_OR,
                                   createablatom( "i2" ),
                                   createablatom( "i3" ) );
          BddSubst = addbddcircuitabl( BddCircuit, Expr );
          freeablexpr( Expr );
          BddVariable = searchbddcircuitin( (bddcircuit ∗)0, "i0" );
          Variable = getbddvarbyindex( (bddsystem ∗)0, BddVariable->INDEX );
          Assoc = addbddassoc( (bddsystem ∗)0 );
          addbddnodeassoc( (bddsystem ∗)0, Assoc, Variable, BddSubst );
          BddNode = substbddnodeassoc( (bddsystem ∗)0, BddSubst, Assoc );
          delbddassoc( (bddsystem ∗)0, Assoc );
          Expr = convertbddcircuitabl( BddCircuit, BddNode );
          /* displays ((i3 or i2) and i1) */
          viewablexpr( Expr, ABL_VIEW_VHDL );
          freeablexpr( Expr );
          destroybddassoc( (bddsystem ∗)0 );
          destroybddsystem( (bddsystem ∗)0 );
          destroybddcircuit( (bddcircuit ∗)0 );

SEE ALSO
       bdd(1)




BUG REPORT
       This tool is under development at the ASIM department of the LIP6
       laboratory.
       We need your feedback to improve documentation and tools.






ASIM/LIP6                       October 1, 1997                 ADDBDDASSOC(3)