1 files changed, 117 insertions, 0 deletions
diff --git a/src/opt/res/resStrash.c b/src/opt/res/resStrash.c
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+/**CFile****************************************************************
+
+  FileName    [resStrash.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Resynthesis package.]
+
+  Synopsis    [Structural hashing of the nodes in the window.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - January 15, 2007.]
+
+  Revision    [$Id: resStrash.c,v 1.00 2007/01/15 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "abc.h"
+#include "resInt.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+extern Abc_Obj_t * Abc_ConvertAigToAig( Abc_Ntk_t * pAig, Abc_Obj_t * pObjOld );
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Structurally hashes the given window.]
+
+  Description [The first PO is the observability condition. The second 
+  is the node's function. The remaining POs are the candidate divisors.]
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Abc_Ntk_t * Res_WndStrash( Res_Win_t * p )
+{
+    Vec_Ptr_t * vPairs;
+    Abc_Ntk_t * pAig;
+    Abc_Obj_t * pObj, * pMiter;
+    int i;
+    assert( Abc_NtkHasAig(p->pNode->pNtk) );
+//    Abc_NtkCleanCopy( p->pNode->pNtk );
+    // create the network
+    pAig = Abc_NtkAlloc( ABC_NTK_STRASH, ABC_FUNC_AIG, 1 );
+    pAig->pName = Extra_UtilStrsav( "window" );
+    // create the inputs
+    Vec_PtrForEachEntry( p->vLeaves, pObj, i )
+        pObj->pCopy = Abc_NtkCreatePi( pAig );
+    Vec_PtrForEachEntry( p->vBranches, pObj, i )
+        pObj->pCopy = Abc_NtkCreatePi( pAig );
+    // go through the nodes in the topological order
+    Vec_PtrForEachEntry( p->vNodes, pObj, i )
+    {
+        pObj->pCopy = Abc_ConvertAigToAig( pAig, pObj );
+        if ( pObj == p->pNode )
+            pObj->pCopy = Abc_ObjNot( pObj->pCopy );
+    }
+    // collect the POs
+    vPairs = Vec_PtrAlloc( 2 * Vec_PtrSize(p->vRoots) );
+    Vec_PtrForEachEntry( p->vRoots, pObj, i )
+    {
+        Vec_PtrPush( vPairs, pObj->pCopy );
+        Vec_PtrPush( vPairs, NULL );
+    }
+    // mark the TFO of the node
+    Abc_NtkIncrementTravId( p->pNode->pNtk );
+    Res_WinSweepLeafTfo_rec( p->pNode, (int)p->pNode->Level + p->nWinTfoMax );
+    // update strashing of the node
+    p->pNode->pCopy = Abc_ObjNot( p->pNode->pCopy );
+    Abc_NodeSetTravIdPrevious( p->pNode );
+    // redo strashing in the TFO
+    Vec_PtrForEachEntry( p->vNodes, pObj, i )
+    {
+        if ( Abc_NodeIsTravIdCurrent(pObj) )
+            pObj->pCopy = Abc_ConvertAigToAig( pAig, pObj );
+    }
+    // collect the POs
+    Vec_PtrForEachEntry( p->vRoots, pObj, i )
+        Vec_PtrWriteEntry( vPairs, 2 * i + 1, pObj->pCopy );
+    // add the miter
+    pMiter = Abc_AigMiter( pAig->pManFunc, vPairs );
+    Abc_ObjAddFanin( Abc_NtkCreatePo(pAig), pMiter );
+    Vec_PtrFree( vPairs );
+    // add the node
+    Abc_ObjAddFanin( Abc_NtkCreatePo(pAig), p->pNode->pCopy );
+    // add the fanins
+    Abc_ObjForEachFanin( p->pNode, pObj, i )
+        Abc_ObjAddFanin( Abc_NtkCreatePo(pAig), pObj->pCopy );
+    // add the divisors
+    Vec_PtrForEachEntry( p->vDivs, pObj, i )
+        Abc_ObjAddFanin( Abc_NtkCreatePo(pAig), pObj->pCopy );
+    // add the names
+    Abc_NtkAddDummyPiNames( pAig );
+    Abc_NtkAddDummyPoNames( pAig );
+    // check the resulting network
+    if ( !Abc_NtkCheck( pAig ) )
+        fprintf( stdout, "Res_WndStrash(): Network check has failed.\n" );
+    return pAig;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+