Adding output range support to %blast.

src/base/wlc/wlc.h

@@ -259,7 +259,7 @@ extern Vec_Int_t *    Wlc_NtkFindUifableMultiplierPairs( Wlc_Ntk_t * p );
 extern Wlc_Ntk_t *    Wlc_NtkAbstractNodes( Wlc_Ntk_t * pNtk, Vec_Int_t * vNodes );
 extern Wlc_Ntk_t *    Wlc_NtkUifNodePairs( Wlc_Ntk_t * pNtk, Vec_Int_t * vPairs );
 /*=== wlcBlast.c ========================================================*/
-extern Gia_Man_t *    Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int fGiaSimple, int fAddOutputs );
+extern Gia_Man_t *    Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int iOutput, int nRange, int fGiaSimple, int fAddOutputs );
 /*=== wlcCom.c ========================================================*/
 extern void           Wlc_SetNtk( Abc_Frame_t * pAbc, Wlc_Ntk_t * pNtk );
 /*=== wlcNtk.c ========================================================*/

src/base/wlc/wlcBlast.c

@@ -820,7 +820,7 @@ void Wlc_BlastBooth( Gia_Man_t * pNew, int * pArgA, int * pArgB, int nArgA, int
   SeeAlso     []
 
 ***********************************************************************/
-Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int fGiaSimple, int fAddOutputs )
+Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int iOutput, int nOutputRange, int fGiaSimple, int fAddOutputs )
 {
     int fVerbose = 0;
     int fUseOldMultiplierBlasting = 0;
@@ -1314,6 +1314,9 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds, int fGiaSimple,
     // create COs
     Wlc_NtkForEachCo( p, pObj, i )
     {
+        // skip all outputs except the given ones
+        if ( iOutput >= 0 && (i < iOutput || i >= iOutput + nOutputRange) )
+            continue;
         // create additional PO literals
         if ( vAddOutputs && pObj->fIsFi )
         {

src/base/wlc/wlcCom.c

@@ -338,12 +338,34 @@ int Abc_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
     Wlc_Ntk_t * pNtk = Wlc_AbcGetNtk(pAbc);
     Vec_Int_t * vBoxIds = NULL;
     Gia_Man_t * pNew = NULL;
-    int c, fGiaSimple = 0, fAddOutputs = 0, fMulti = 0, fVerbose  = 0;
+    int c, iOutput = -1, nOutputRange = 2, fGiaSimple = 0, fAddOutputs = 0, fMulti = 0, fVerbose  = 0;
     Extra_UtilGetoptReset();
-    while ( ( c = Extra_UtilGetopt( argc, argv, "comvh" ) ) != EOF )
+    while ( ( c = Extra_UtilGetopt( argc, argv, "ORcomvh" ) ) != EOF )
     {
         switch ( c )
         {
+        case 'O':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-O\" should be followed by an integer.\n" );
+                goto usage;
+            }
+            iOutput = atoi(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            if ( iOutput < 0 )
+                goto usage;
+            break;
+        case 'R':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-R\" should be followed by an integer.\n" );
+                goto usage;
+            }
+            nOutputRange = atoi(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            if ( nOutputRange < 0 )
+                goto usage;
+            break;
         case 'c':
             fGiaSimple ^= 1;
             break;
@@ -373,8 +395,13 @@ int Abc_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
         if ( vBoxIds == NULL )
             Abc_Print( 1, "Warning:  There is no multipliers in the design.\n" );
     }
+    if ( iOutput >= 0 && iOutput + nOutputRange > Wlc_NtkPoNum(pNtk) )
+    {
+        Abc_Print( 1, "Abc_CommandBlast(): The output range [%d:%d] is incorrect.\n", iOutput, iOutput + nOutputRange - 1 );
+        return 0;
+    }
     // transform
-    pNew = Wlc_NtkBitBlast( pNtk, vBoxIds, fGiaSimple, fAddOutputs );
+    pNew = Wlc_NtkBitBlast( pNtk, vBoxIds, iOutput, nOutputRange, fGiaSimple, fAddOutputs );
     Vec_IntFreeP( &vBoxIds );
     if ( pNew == NULL )
     {
@@ -384,8 +411,10 @@ int Abc_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
     Abc_FrameUpdateGia( pAbc, pNew );
     return 0;
 usage:
-    Abc_Print( -2, "usage: %%blast [-comvh]\n" );
+    Abc_Print( -2, "usage: %%blast [-OR num] [-comvh]\n" );
     Abc_Print( -2, "\t         performs bit-blasting of the word-level design\n" );
+    Abc_Print( -2, "\t-O num : zero-based index of the first word-level PO to bit-blast [default = %d]\n", iOutput );
+    Abc_Print( -2, "\t-R num : the total number of word-level POs to bit-blast [default = %d]\n", nOutputRange );
     Abc_Print( -2, "\t-c     : toggle using AIG w/o const propagation and strashing [default = %s]\n", fGiaSimple? "yes": "no" );
     Abc_Print( -2, "\t-o     : toggle using additional POs on the word-level boundaries [default = %s]\n", fAddOutputs? "yes": "no" );
     Abc_Print( -2, "\t-m     : toggle creating boxes for all multipliers in the design [default = %s]\n", fMulti? "yes": "no" );

src/base/wlc/wlcReadVer.c

@@ -1291,7 +1291,7 @@ void Io_ReadWordTest( char * pFileName )
         return;
     Wlc_WriteVer( pNtk, "test.v", 0, 0 );
 
-    pNew = Wlc_NtkBitBlast( pNtk, NULL, 0, 0 );
+    pNew = Wlc_NtkBitBlast( pNtk, NULL, -1, 0, 0, 0 );
     Gia_AigerWrite( pNew, "test.aig", 0, 0 );
     Gia_ManStop( pNew );
 

src/base/wlc/wlcSim.c

@@ -129,7 +129,7 @@ Vec_Ptr_t * Wlc_NtkSimulate( Wlc_Ntk_t * p, Vec_Int_t * vNodes, int nWords, int
 {
     Gia_Obj_t * pObj; 
     Vec_Ptr_t * vOne, * vRes;
-    Gia_Man_t * pGia = Wlc_NtkBitBlast( p, NULL, 0, 0 );
+    Gia_Man_t * pGia = Wlc_NtkBitBlast( p, NULL, -1, 0, 0, 0 );
     Wlc_Obj_t * pWlcObj;
     int f, i, k, w, nBits, Counter = 0;
     // allocate simulation info for one timeframe