1 files changed, 66 insertions, 1 deletions
diff --git a/src/base/abci/abciUnfold2.c b/src/base/abci/abciUnfold2.c
index ec5047d2..c3780c15 100644
--- a/src/base/abci/abciUnfold2.c
+++ b/src/base/abci/abciUnfold2.c
@@ -110,7 +110,7 @@ int Abc_CommandUnfold2( Abc_Frame_t * pAbc, int argc, char ** argv )
     Abc_FrameReplaceCurrentNetwork( pAbc, pNtkRes );
     return 0;
 usage:
-    Abc_Print( -2, "usage: unfold [-FCP num] [-savh]\n" );
+    Abc_Print( -2, "usage: unfold2 [-FCP num] [-savh]\n" );
     Abc_Print( -2, "\t         unfold hidden constraints as separate outputs\n" );
     Abc_Print( -2, "\t-C num : the max number of conflicts in SAT solving [default = %d]\n", nConfs );
     Abc_Print( -2, "\t-P num : the max number of constraint propagations [default = %d]\n", nProps );
@@ -119,3 +119,68 @@ usage:
     return 1;
 }
 
+
+
+int Abc_CommandFold2( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+    Abc_Ntk_t * pNtk, * pNtkRes;
+    int fCompl;
+    int fVerbose;
+    int c;
+    extern Abc_Ntk_t * Abc_NtkDarFold2( Abc_Ntk_t * pNtk, int fCompl, int fVerbose , int);
+    pNtk = Abc_FrameReadNtk(pAbc);
+    // set defaults
+    fCompl    =   0;
+    fVerbose  =   0;
+    Extra_UtilGetoptReset();
+    while ( ( c = Extra_UtilGetopt( argc, argv, "cvh" ) ) != EOF )
+    {
+        switch ( c )
+        {
+        /* case 'c': */
+        /*     fCompl ^= 1; */
+        /*     break; */
+        case 'v':
+            fVerbose ^= 1;
+            break;
+        case 'h':
+            goto usage;
+        default:
+            goto usage;
+        }
+    }
+    if ( pNtk == NULL )
+    {
+        Abc_Print( -1, "Empty network.\n" );
+        return 1;
+    }
+    if ( !Abc_NtkIsStrash(pNtk) )
+    {
+        Abc_Print( -1, "Currently only works for structurally hashed circuits.\n" );
+        return 0;
+    }
+    if ( Abc_NtkConstrNum(pNtk) == 0 )
+    {
+        Abc_Print( 0, "The network has no constraints.\n" );
+        return 0;
+    }
+    if ( Abc_NtkIsComb(pNtk) )
+        Abc_Print( 0, "The network is combinational.\n" );
+    // modify the current network
+    pNtkRes = Abc_NtkDarFold2( pNtk, fCompl, fVerbose ,0);
+    if ( pNtkRes == NULL )
+    {
+        Abc_Print( 1,"Transformation has failed.\n" );
+        return 0;
+    }
+    // replace the current network
+    Abc_FrameReplaceCurrentNetwork( pAbc, pNtkRes );
+    return 0;
+usage:
+    Abc_Print( -2, "usage: fold [-cvh]\n" );
+    Abc_Print( -2, "\t         folds constraints represented as separate outputs\n" );
+    //    Abc_Print( -2, "\t-c     : toggle complementing constraints while folding [default = %s]\n", fCompl? "yes": "no" );
+    Abc_Print( -2, "\t-v     : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
+    Abc_Print( -2, "\t-h     : print the command usage\n");
+    return 1;
+}