NAME¶

implybddnode - computes a bdd that implies a conjonction of two bdd nodes.

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 ∗implybddnode( BddSystem, BddNode1, BddNode2 )


  bddsystem ∗BddSystem;


  bddnode   ∗BddNode1;


  bddnode   ∗BddNode2;

PARAMETERS¶

BddSystem

The bdd system.

BddNode1

The first bdd node.

BddNode2

The second bdd node.

DESCRIPTION¶

implybddnode tests if the intersection of BddNode1 and not BddNode2, exists, in the bdd system BddSystem. If a null pointer is given, the default bdd system is used.

RETURN VALUE¶

implybddnode returns the bdd node zero if there is no intersection, and a computed bdd node otherwise.

EXAMPLE¶

#include "bdd101.h"


   bddsystem  ∗BddSystem;


   bddcircuit ∗BddCircuit;


   bddnode    ∗BddNode1;


   bddnode    ∗BddNode2;


   bddnode    ∗BddImply;


   chain_list ∗Expr;


   BddSystem  = createbddsystem( 100, 1000, 100, 50000 );


   BddCircuit = createbddcircuit( "hello_world", 10, 10, BddSystem );


   Expr = createablbinexpr( ABL_OR,


                            createablatom( "i0" ),


                            createablatom( "i1" ) );


   BddNode1 = addbddcircuitabl( BddCircuit, Expr );


   freeablexpr( Expr );


   Expr = createablbinexpr( ABL_AND,


                            createablatom( "i0" ),


                            createablatom( "i1" ) );


   BddNode1 = addbddcircuitabl( BddCircuit, Expr );


   freeablexpr( Expr );


   BddImply = implybddnode( (bddsystem ∗)0, BddNode1, BddNode2 );


   Expr = convertbddcircuitabl( BddCircuit, BddNode );


   /* displays (i0 and (not i1)) */


   viewablexpr( Expr, ABL_VIEW_VHDL );


   freeablexpr( Expr );


   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.