DELBDDASSOC(3) BDD FUNCTIONS DELBDDASSOC(3)
NAME
delbddassoc - deletes a variable association.
ORIGIN
This software belongs to the ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite 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"
int delbddassoc( BddSystem, BddAssoc )
bddsystem *BddSystem;
bddassoc *BddAssoc;
PARAMETERS
BddSystem The bdd system.
BddAssoc The variable association to delete.
DESCRIPTION
delbddassoc deletes the variable association BddAssoc in the bdd system BddSystem. If a null pointer is given, the default bdd system is
used. For all the bdd nodes of the variable association BddAssoc, the number of external reference is decremented.
RETURN VALUE
delbddassoc returns 1 if the variable association is found, 0 otherwise.
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 = delbddassoc( (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 DELBDDASSOC(3)
