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Name

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

Origin

This software belongs to the ALLIANCE CAD system from the CAO-VLSI team at ASIM/LIP6/UPMC laboratory.
LIP6/ASIM
University P. et M. Curie 4, place Jussieu 75252 PARIS Cedex 05 FRANCE
Fax : {33/0} 1.44.27.62.86
E-mail support : alliance-support@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/LIP6/UPMC laboratory, cao-vlsi research team.
We need your feedbak to improve documentation and tools. If you find bugs, please fill-in the form at http://asim.lip6.fr/alliance/support/bug-report/ Thanks for doing this.


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