1 files changed, 76 insertions, 0 deletions
diff --git a/src/base/io/ioWriteCnf.c b/src/base/io/ioWriteCnf.c
new file mode 100644
index 00000000..144ff167
--- /dev/null
+++ b/src/base/io/ioWriteCnf.c
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+/**CFile****************************************************************
+
+  FileName    [ioWriteCnf.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Command processing package.]
+
+  Synopsis    [Procedures to CNF of the miter cone.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - June 20, 2005.]
+
+  Revision    [$Id: ioWriteCnf.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "io.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+static void Io_WriteCnfInt( FILE * pFile, Abc_Ntk_t * pNtk );
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFITIONS                           ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Write the miter cone into a CNF file for the SAT solver.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Io_WriteCnf( Abc_Ntk_t * pNtk, char * pFileName )
+{
+    solver * pSat;
+    if ( !Abc_NtkIsLogicBdd(pNtk) )
+    {
+        fprintf( stdout, "Io_WriteCnf(): Currently can process logic networks with BDDs.\n" );
+        return 0;
+    }
+    if ( Abc_NtkPoNum(pNtk) != 1 )
+    {
+        fprintf( stdout, "Io_WriteCnf(): Currently can only solve the miter (the network with one PO).\n" );
+        return 0;
+    }
+    if ( Abc_NtkLatchNum(pNtk) != 0 )
+    {
+        fprintf( stdout, "Io_WriteCnf(): Currently can only solve the miter for combinational circuits.\n" );
+        return 0;
+    }
+    // create solver with clauses
+    pSat = Abc_NtkMiterSatCreate( pNtk );
+    // write the clauses
+    Asat_SolverWriteDimacs( pSat, pFileName );
+    // free the solver
+    solver_delete( pSat );
+    return 1;
+}
+
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+