1 files changed, 103 insertions, 0 deletions
diff --git a/src/opt/res/resCore.c b/src/opt/res/resCore.c
new file mode 100644
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+++ b/src/opt/res/resCore.c
@@ -0,0 +1,103 @@
+/**CFile****************************************************************
+
+  FileName    [resCore.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Resynthesis package.]
+
+  Synopsis    [Top-level resynthesis procedure.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - June 20, 2005.]
+
+  Revision    [$Id: resCore.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "abc.h"
+#include "res.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Entrace into the resynthesis package.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Abc_NtkResynthesize( Abc_Ntk_t * pNtk, int nWindow, int nSimWords, int fVerbose, int fVeryVerbose )
+{
+    Res_Win_t * pWin;
+    Res_Sim_t * pSim;
+    Abc_Ntk_t * pAig;
+    Abc_Obj_t * pObj;
+    Hop_Obj_t * pFunc;
+    Vec_Ptr_t * vFanins;
+    int i, nNodesOld;
+    assert( Abc_NtkHasAig(pNtk) );
+    assert( nWindow > 0 && nWindow < 100 );
+    // start the window
+    pWin = Res_WinAlloc();
+    pSim = Res_SimAlloc( nSimWords );
+    // set the number of levels
+    Abc_NtkLevel( pNtk );
+    // try resynthesizing nodes in the topological order
+    nNodesOld = Abc_NtkObjNumMax(pNtk);
+    Abc_NtkForEachObj( pNtk, pObj, i )
+    {
+        if ( !Abc_ObjIsNode(pObj) )
+            continue;
+        if ( pObj->Id > nNodesOld )
+            break;
+        // create the window for this node
+        if ( !Res_WinCompute(pObj, nWindow/10, nWindow%10, pObj->Level - 1, pWin) )
+            continue;
+        // create the AIG for the window
+        pAig = Res_WndStrash( pWin );
+        // prepare simulation info
+        if ( !Res_SimPrepare( pSim, pAig ) )
+        {
+            Abc_NtkDelete( pAig );
+            continue;
+        }
+        // find resub candidates for the node
+        vFanins = Res_FilterCandidates( pWin, pSim );
+        // check using SAT
+        pFunc = Res_SatFindFunction( pNtk->pManFunc, pWin, vFanins, pAig );
+        Abc_NtkDelete( pAig );
+        if ( pFunc == NULL )
+            continue;
+        // update the network
+        Res_UpdateNetwork( pObj, vFanins, pFunc );
+    }
+    Res_WinFree( pWin );
+    Res_SimFree( pSim );
+    // check the resulting network
+    if ( !Abc_NtkCheck( pNtk ) )
+    {
+        fprintf( stdout, "Abc_NtkResynthesize(): Network check has failed.\n" );
+        return 0;
+    }
+    return 1;
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+