NAME¶

existbddnodeassocoff - computes an existantial quantification.

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"
bddnode ∗existbddnodeassocoff( BddSystem, BddNode, BddAssoc )
  bddsystem ∗BddSystem;
  bddnode   ∗BddNode;
  bddassoc  ∗BddAssoc;

PARAMETERS¶

BddSystem

The bdd system.

BddNode

The bdd node to treat.

BddAssoc

The variable association.

DESCRIPTION¶

existbddnodeassocoff suppress in the bdd node BddNode complemented, all the variables associated with something in the variable association BddAssoc, in the bdd system BddSystem. If a null pointer is given, the default bdd system is used.

RETURN VALUE¶

existbddnodeassocoff returns the computed bdd node.

ERRORS¶

"bad variable association xxx, error !"

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_NAND,
                            createablatom( "i0" ),
                            createablatom( "i1" ) );
   BddNode = 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, BddSystem->ONE );
   BddNode = existbddnodeassocoff( (bddsystem ∗)0, BddNode, Assoc );
   Expr = convertbddcircuitabl( BddCircuit, BddNode );
   /* displays (not 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.