1 files changed, 134 insertions, 0 deletions
diff --git a/src/bool/bdc/bdcTable.c b/src/bool/bdc/bdcTable.c
new file mode 100644
index 00000000..69f35d88
--- /dev/null
+++ b/src/bool/bdc/bdcTable.c
@@ -0,0 +1,134 @@
+/**CFile****************************************************************
+
+  FileName    [bdcTable.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Truth-table-based bi-decomposition engine.]
+
+  Synopsis    [Hash table for intermediate nodes.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - January 30, 2007.]
+
+  Revision    [$Id: bdcTable.c,v 1.00 2007/01/30 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "bdcInt.h"
+
+ABC_NAMESPACE_IMPL_START
+
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Checks containment of the function in the ISF.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Bdc_TableCheckContainment( Bdc_Man_t * p, Bdc_Isf_t * pIsf, unsigned * puTruth )
+{
+    return Kit_TruthIsImply( pIsf->puOn, puTruth, p->nVars ) &&
+         Kit_TruthIsDisjoint( puTruth, pIsf->puOff, p->nVars );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Adds the new entry to the hash table.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Bdc_Fun_t * Bdc_TableLookup( Bdc_Man_t * p, Bdc_Isf_t * pIsf )
+{
+    int fDisableCache = 0;
+    Bdc_Fun_t * pFunc;
+    if ( fDisableCache && Kit_WordCountOnes(pIsf->uSupp) > 1 )
+        return NULL;
+    if ( pIsf->uSupp == 0 )
+    {
+        assert( p->pTable[pIsf->uSupp] == p->pNodes );
+        if ( Kit_TruthIsConst1( pIsf->puOn, p->nVars ) )
+            return p->pNodes;
+        assert( Kit_TruthIsConst1( pIsf->puOff, p->nVars ) );
+        return Bdc_Not(p->pNodes);
+    }
+    for ( pFunc = p->pTable[pIsf->uSupp]; pFunc; pFunc = pFunc->pNext )
+        if ( Bdc_TableCheckContainment( p, pIsf, pFunc->puFunc ) )
+             return pFunc;
+    Bdc_IsfNot( pIsf );
+    for ( pFunc = p->pTable[pIsf->uSupp]; pFunc; pFunc = pFunc->pNext )
+        if ( Bdc_TableCheckContainment( p, pIsf, pFunc->puFunc ) )
+        {
+            Bdc_IsfNot( pIsf );
+            return Bdc_Not(pFunc);
+        }
+    Bdc_IsfNot( pIsf );
+    return NULL;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Adds the new entry to the hash table.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Bdc_TableAdd( Bdc_Man_t * p, Bdc_Fun_t * pFunc )
+{
+    if ( p->pTable[pFunc->uSupp] == NULL )
+        Vec_IntPush( p->vSpots, pFunc->uSupp );
+    pFunc->pNext = p->pTable[pFunc->uSupp];
+    p->pTable[pFunc->uSupp] = pFunc;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Adds the new entry to the hash table.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Bdc_TableClear( Bdc_Man_t * p )
+{
+    int Spot, i;
+    Vec_IntForEachEntry( p->vSpots, Spot, i )
+        p->pTable[Spot] = NULL;
+    Vec_IntClear( p->vSpots );
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+
+ABC_NAMESPACE_IMPL_END
+