Version abc70711

1 files changed, 80 insertions, 0 deletions

diff --git a/src/aig/csw/cswCore.c b/src/aig/csw/cswCore.c
new file mode 100644
index 00000000..ddf37035
--- /dev/null
+++ b/src/aig/csw/cswCore.c
@@ -0,0 +1,80 @@
+/**CFile****************************************************************
+
+  FileName    [cswCore.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Cut sweeping.]
+
+  Synopsis    []
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - July 11, 2007.]
+
+  Revision    [$Id: cswCore.c,v 1.00 2007/07/11 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "cswInt.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Dar_Man_t * Csw_Sweep( Dar_Man_t * pAig, int nCutsMax, int nLeafMax, int fVerbose )
+{
+    Csw_Man_t * p;
+    Dar_Man_t * pRes;
+    Dar_Obj_t * pObj, * pObjNew, * pObjRes;
+    int i;
+    // start the manager
+    p = Csw_ManStart( pAig, nCutsMax, nLeafMax, fVerbose );
+    // set elementary cuts at the PIs
+    Dar_ManForEachPi( p->pManRes, pObj, i )
+        Csw_ObjPrepareCuts( p, pObj, 1 );
+    // process the nodes
+    Dar_ManForEachNode( pAig, pObj, i )
+    {
+        // create the new node
+        pObjNew = Dar_And( p->pManRes, Csw_ObjChild0Equiv(p, pObj), Csw_ObjChild1Equiv(p, pObj) );
+        // check if this node can be represented using another node
+        pObjRes = Csw_ObjSweep( p, Dar_Regular(pObjNew), pObj->nRefs > 1 );
+        pObjRes = Dar_NotCond( pObjRes, Dar_IsComplement(pObjNew) );
+        // set the resulting node
+        Csw_ObjSetEquiv( p, pObj, pObjRes );
+    }
+    // add the POs
+    Dar_ManForEachPo( pAig, pObj, i )
+        Dar_ObjCreatePo( p->pManRes, Csw_ObjChild0Equiv(p, pObj) );
+    // remove dangling nodes 
+    Dar_ManCleanup( p->pManRes );
+    // return the resulting manager
+    pRes = p->pManRes;
+    Csw_ManStop( p );
+    return pRes;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+