1 files changed, 76 insertions, 0 deletions
diff --git a/src/opt/ret/retCore.c b/src/opt/ret/retCore.c
new file mode 100644
index 00000000..541f5962
--- /dev/null
+++ b/src/opt/ret/retCore.c
@@ -0,0 +1,76 @@
+/**CFile****************************************************************
+
+  FileName    [retCore.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Retiming package.]
+
+  Synopsis    [The core retiming procedures.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - Oct 31, 2006.]
+
+  Revision    [$Id: retCore.c,v 1.00 2006/10/31 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "retInt.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Implementation of retiming.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Abc_NtkRetime( Abc_Ntk_t * pNtk, int Mode, int fVerbose )
+{
+    int RetValue;
+    assert( Mode > 0 && Mode < 6 );
+    // perform forward retiming
+    switch ( Mode )
+    {
+    case 1: // forward 
+        RetValue = Abc_NtkRetimeForward( pNtk, fVerbose );
+        break;
+    case 2: // backward 
+        RetValue = Abc_NtkRetimeBackward( pNtk, fVerbose );
+        break;
+    case 3: // min-area 
+        RetValue = Abc_NtkRetimeMinArea( pNtk, fVerbose );
+        break;
+    case 4: // min-delay
+        RetValue = Abc_NtkRetimeMinDelay( pNtk, fVerbose );
+        break;
+    case 5: // min-area + min-delay
+        RetValue  = Abc_NtkRetimeMinArea( pNtk, fVerbose );
+        RetValue += Abc_NtkRetimeMinDelay( pNtk, fVerbose );
+        break;
+    default:
+        printf( "Unknown retiming option.\n" );
+        break;
+    }
+    return RetValue;
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+