Infrastructure to support full Liberty format and unitification of library representations.

abclib.dsp

@@ -2479,11 +2479,19 @@ SOURCE=.\src\map\scl\sclDnsize.c
 # End Source File
 # Begin Source File
 
-SOURCE=.\src\map\scl\sclLib.c
+SOURCE=.\src\map\scl\sclLib.h
 # End Source File
 # Begin Source File
 
-SOURCE=.\src\map\scl\sclLib.h
+SOURCE=.\src\map\scl\sclLiberty.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\src\map\scl\sclLibScl.c
+# End Source File
+# Begin Source File
+
+SOURCE=.\src\map\scl\sclLibUtil.c
 # End Source File
 # Begin Source File
 

src/base/abci/abc.c

@@ -990,6 +990,10 @@ void Abc_Init( Abc_Frame_t * pAbc )
 
     if ( Sdm_ManCanRead() )
         Sdm_ManRead();
+    {
+//        extern void Scl_LibertyTest();
+//        Scl_LibertyTest();
+    }
 }
 
 /**Function*************************************************************

src/base/abci/abcMap.c

@@ -70,7 +70,7 @@ Abc_Ntk_t * Abc_NtkMap( Abc_Ntk_t * pNtk, double DelayTarget, double AreaMulti,
     assert( Abc_NtkIsStrash(pNtk) );
     // derive library from SCL
     if ( Abc_FrameReadLibScl() )
-        Mio_SclDeriveGenlib( Abc_FrameReadLibScl(), Slew, Gain, nGatesMin );
+        Abc_SclDeriveGenlib( Abc_FrameReadLibScl(), Slew, Gain, nGatesMin );
     // quit if there is no library
     pLib = (Mio_Library_t *)Abc_FrameReadLibGen();
     if ( pLib == NULL )

src/map/mio/mio.c

@@ -220,7 +220,7 @@ int Mio_CommandReadLiberty( Abc_Frame_t * pAbc, int argc, char **argv )
     if ( (pFile = Io_FileOpen( pFileName, "open_path", "r", 0 )) == NULL )
     {
         fprintf( pErr, "Cannot open input file \"%s\". ", pFileName );
-        if ( (pFileName = Extra_FileGetSimilarName( pFileName, ".genlib", ".lib", ".gen", ".g", NULL )) )
+        if ( (pFileName = Extra_FileGetSimilarName( pFileName, ".genlib", ".lib", ".scl", ".g", NULL )) )
             fprintf( pErr, "Did you mean \"%s\"?", pFileName );
         fprintf( pErr, "\n" );
         return 1;
@@ -338,7 +338,7 @@ int Mio_CommandReadGenlib( Abc_Frame_t * pAbc, int argc, char **argv )
     if ( (pFile = Io_FileOpen( pFileName, "open_path", "r", 0 )) == NULL )
     {
         fprintf( pErr, "Cannot open input file \"%s\". ", pFileName );
-        if ( (pFileName = Extra_FileGetSimilarName( pFileName, ".genlib", ".lib", ".gen", ".g", NULL )) )
+        if ( (pFileName = Extra_FileGetSimilarName( pFileName, ".genlib", ".lib", ".scl", ".g", NULL )) )
             fprintf( pErr, "Did you mean \"%s\"?", pFileName );
         fprintf( pErr, "\n" );
         return 1;

src/map/mio/mio.h

@@ -82,7 +82,7 @@ static inline char *    Mio_UtilStrsav( char * s )     { return s ? strcpy(ABC_A
 /*=== mio.c =============================================================*/
 extern void              Mio_UpdateGenlib( Mio_Library_t * pLib );
 extern int               Mio_UpdateGenlib2( Vec_Str_t * vStr, Vec_Str_t * vStr2, char * pFileName, int fVerbose );
-extern void              Mio_SclDeriveGenlib( void * pScl, float Slew, float Gain, int nGatesMin );
+extern void              Abc_SclDeriveGenlib( void * pScl, float Slew, float Gain, int nGatesMin );
 /*=== mioApi.c =============================================================*/
 extern char *            Mio_LibraryReadName       ( Mio_Library_t * pLib );
 extern int               Mio_LibraryReadGateNum    ( Mio_Library_t * pLib );

src/map/mio/mioParse.c

@@ -399,6 +399,8 @@ Vec_Wrd_t * Mio_ParseFormulaTruth( char * pFormInit, char ** ppVarNames, int nVa
     Vec_Wrd_t * vTruth;
     // derive expression
     vExpr = Mio_ParseFormula( pFormInit, ppVarNames, nVars );
+    if ( vExpr == NULL )
+        return NULL;
     // convert it into a truth table
     vTruth = Vec_WrdStart( Abc_Truth6WordNum(nVars) );
     Exp_Truth( nVars, vExpr, Vec_WrdArray(vTruth) );

src/map/scl/module.make

@@ -2,7 +2,9 @@ SRC +=  src/map/scl/scl.c \
     src/map/scl/sclBuffer.c \
     src/map/scl/sclBufSize.c \
     src/map/scl/sclDnsize.c \
-    src/map/scl/sclLib.c \
+    src/map/scl/sclLiberty.c \
+    src/map/scl/sclLibScl.c \
+    src/map/scl/sclLibUtil.c \
     src/map/scl/sclLoad.c \
     src/map/scl/sclSize.c \
     src/map/scl/sclUpsize.c \

src/map/scl/scl.c

@@ -28,6 +28,7 @@ ABC_NAMESPACE_IMPL_START
 ///                        DECLARATIONS                              ///
 ////////////////////////////////////////////////////////////////////////
 
+static int Scl_CommandReadLib ( Abc_Frame_t * pAbc, int argc, char **argv );
 static int Scl_CommandRead    ( Abc_Frame_t * pAbc, int argc, char **argv );
 static int Scl_CommandWrite   ( Abc_Frame_t * pAbc, int argc, char **argv );
 static int Scl_CommandPrintScl( Abc_Frame_t * pAbc, int argc, char **argv );
@@ -51,6 +52,29 @@ static int Scl_CommandPrintBuf( Abc_Frame_t * pAbc, int argc, char **argv );
 
 /**Function*************************************************************
 
+  Synopsis    [Updating library in the frameframe.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Abc_SclLoad( SC_Lib * pLib, SC_Lib ** ppScl )
+{
+    if ( *ppScl )
+    {
+        Abc_SclLibFree( *ppScl );
+        *ppScl = NULL;
+    }
+    assert( *ppScl == NULL );
+    if ( pLib )
+        *(SC_Lib **)ppScl = pLib;
+}
+
+/**Function*************************************************************
+
   Synopsis    []
 
   Description []
@@ -62,6 +86,7 @@ static int Scl_CommandPrintBuf( Abc_Frame_t * pAbc, int argc, char **argv );
 ***********************************************************************/
 void Scl_Init( Abc_Frame_t * pAbc )
 {
+    Cmd_CommandAdd( pAbc, "SCL mapping",  "read_lib",    Scl_CommandReadLib,  0 ); 
     Cmd_CommandAdd( pAbc, "SCL mapping",  "read_scl",    Scl_CommandRead,     0 ); 
     Cmd_CommandAdd( pAbc, "SCL mapping",  "write_scl",   Scl_CommandWrite,    0 ); 
     Cmd_CommandAdd( pAbc, "SCL mapping",  "print_scl",   Scl_CommandPrintScl, 0 ); 
@@ -97,20 +122,138 @@ void Scl_End( Abc_Frame_t * pAbc )
   SeeAlso     []
 
 ***********************************************************************/
-int Scl_CommandRead( Abc_Frame_t * pAbc, int argc, char ** argv )
+int Scl_CommandReadLib( Abc_Frame_t * pAbc, int argc, char ** argv )
 {
     char * pFileName;
     FILE * pFile;
-    int c, fVerbose = 0;
+    SC_Lib * pLib;
+    int c, fDump = 0;
+    float Slew = 200;
+    float Gain = 100;
+    int nGatesMin = 4;
+    int fVerbose = 1;
+    int fVeryVerbose = 0;
 
     Extra_UtilGetoptReset();
-    while ( ( c = Extra_UtilGetopt( argc, argv, "vh" ) ) != EOF )
+    while ( ( c = Extra_UtilGetopt( argc, argv, "SGMdvwh" ) ) != EOF )
     {
         switch ( c )
         {
+        case 'S':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-S\" should be followed by a floating point number.\n" );
+                goto usage;
+            }
+            Slew = (float)atof(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            if ( Slew <= 0.0 )
+                goto usage;
+            break;
+        case 'G':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-G\" should be followed by a floating point number.\n" );
+                goto usage;
+            }
+            Gain = (float)atof(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            if ( Gain <= 0.0 )
+                goto usage;
+            break;
+        case 'M':
+            if ( globalUtilOptind >= argc )
+            {
+                Abc_Print( -1, "Command line switch \"-M\" should be followed by a positive integer.\n" );
+                goto usage;
+            }
+            nGatesMin = atoi(argv[globalUtilOptind]);
+            globalUtilOptind++;
+            if ( nGatesMin < 0 ) 
+                goto usage;
+            break;
+        case 'd':
+            fDump ^= 1;
+            break;
         case 'v':
             fVerbose ^= 1;
             break;
+        case 'w':
+            fVeryVerbose ^= 1;
+            break;
+        case 'h':
+            goto usage;
+        default:
+            goto usage;
+        }
+    }
+    if ( argc != globalUtilOptind + 1 )
+        goto usage;
+    // get the input file name
+    pFileName = argv[globalUtilOptind];
+    if ( (pFile = fopen( pFileName, "rb" )) == NULL )
+    {
+        fprintf( pAbc->Err, "Cannot open input file \"%s\". \n", pFileName );
+        return 1;
+    }
+    fclose( pFile );
+    // read new library
+    pLib = Abc_SclReadLiberty( pFileName, fVerbose, fVeryVerbose );
+    if ( pLib == NULL )
+    {
+        fprintf( pAbc->Err, "Reading SCL library from file \"%s\" has failed. \n", pFileName );
+        return 1;
+    }
+    Abc_SclLoad( pLib, (SC_Lib **)&pAbc->pLibScl );
+    // dump the resulting library
+    if ( fDump && pAbc->pLibScl )
+        Abc_SclWriteLiberty( Extra_FileNameGenericAppend(pFileName, "_temp.lib"), (SC_Lib *)pAbc->pLibScl );
+    // extract genlib library
+    if ( pAbc->pLibScl )
+        Abc_SclDeriveGenlib( pAbc->pLibScl, Slew, Gain, nGatesMin );
+    return 0;
+
+usage:
+    fprintf( pAbc->Err, "usage: read_lib [-SG float] [-M num] [-dvwh] <file>\n" );
+    fprintf( pAbc->Err, "\t           reads Liberty library from file\n" );
+    fprintf( pAbc->Err, "\t-S float : the slew parameter used to generate the library [default = %.2f]\n", Slew );
+    fprintf( pAbc->Err, "\t-G float : the gain parameter used to generate the library [default = %.2f]\n", Gain );
+    fprintf( pAbc->Err, "\t-M num   : skip gate classes whose size is less than this [default = %d]\n", nGatesMin );
+    fprintf( pAbc->Err, "\t-d       : toggle dumping the parsed library into file \"*_temp.lib\" [default = %s]\n", fDump? "yes": "no" );
+    fprintf( pAbc->Err, "\t-v       : toggle writing verbose information [default = %s]\n", fVerbose? "yes": "no" );
+    fprintf( pAbc->Err, "\t-v       : toggle writing information about skipped gates [default = %s]\n", fVeryVerbose? "yes": "no" );
+    fprintf( pAbc->Err, "\t-h       : prints the command summary\n" );
+    fprintf( pAbc->Err, "\t<file>   : the name of a file to read\n" );
+    return 1;
+}
+
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Scl_CommandRead( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+    FILE * pFile;
+    SC_Lib * pLib;
+    char * pFileName;
+    int c, fDump = 0;
+
+    Extra_UtilGetoptReset();
+    while ( ( c = Extra_UtilGetopt( argc, argv, "dh" ) ) != EOF )
+    {
+        switch ( c )
+        {
+        case 'd':
+            fDump ^= 1;
+            break;
         case 'h':
             goto usage;
         default:
@@ -130,15 +273,21 @@ int Scl_CommandRead( Abc_Frame_t * pAbc, int argc, char ** argv )
     fclose( pFile );
 
     // read new library
-    Abc_SclLoad( pFileName, (SC_Lib **)&pAbc->pLibScl );
-    if ( fVerbose )
-        Abc_SclWriteText( "scl_out.txt", (SC_Lib *)pAbc->pLibScl );
+    pLib = Abc_SclReadFromFile( pFileName );
+    if ( pLib == NULL )
+    {
+        fprintf( pAbc->Err, "Reading SCL library from file \"%s\" has failed. \n", pFileName );
+        return 1;
+    }
+    Abc_SclLoad( pLib, (SC_Lib **)&pAbc->pLibScl );
+    if ( fDump )
+        Abc_SclWriteLiberty( Extra_FileNameGenericAppend(pFileName, "_temp.lib"), (SC_Lib *)pAbc->pLibScl );
     return 0;
 
 usage:
-    fprintf( pAbc->Err, "usage: read_scl [-vh] <file>\n" );
-    fprintf( pAbc->Err, "\t         reads Liberty library from file\n" );
-    fprintf( pAbc->Err, "\t-v     : toggle writing the result into file \"scl_out.txt\" [default = %s]\n", fVerbose? "yes": "no" );
+    fprintf( pAbc->Err, "usage: read_scl [-dh] <file>\n" );
+    fprintf( pAbc->Err, "\t         reads extracted Liberty library from file\n" );
+    fprintf( pAbc->Err, "\t-d     : toggle dumping the parsed library into file \"*_temp.lib\" [default = %s]\n", fDump? "yes": "no" );
     fprintf( pAbc->Err, "\t-h     : prints the command summary\n" );
     fprintf( pAbc->Err, "\t<file> : the name of a file to read\n" );
     return 1;
@@ -189,12 +338,12 @@ int Scl_CommandWrite( Abc_Frame_t * pAbc, int argc, char **argv )
     fclose( pFile );
 
     // save current library
-    Abc_SclSave( pFileName, (SC_Lib *)pAbc->pLibScl );
+    Abc_SclWriteScl( pFileName, (SC_Lib *)pAbc->pLibScl );
     return 0;
 
 usage:
     fprintf( pAbc->Err, "usage: write_scl [-h] <file>\n" );
-    fprintf( pAbc->Err, "\t         write Liberty library into file\n" );
+    fprintf( pAbc->Err, "\t         write extracted Liberty library into file\n" );
     fprintf( pAbc->Err, "\t-h     : print the help massage\n" );
     fprintf( pAbc->Err, "\t<file> : the name of the file to write\n" );
     return 1;
@@ -216,9 +365,10 @@ int Scl_CommandPrintScl( Abc_Frame_t * pAbc, int argc, char **argv )
     float Slew = 200;
     float Gain = 100;
     int fInvOnly = 0;
+    int fShort = 0;
     int c;
     Extra_UtilGetoptReset();
-    while ( ( c = Extra_UtilGetopt( argc, argv, "SGih" ) ) != EOF )
+    while ( ( c = Extra_UtilGetopt( argc, argv, "SGish" ) ) != EOF )
     {
         switch ( c )
         {
@@ -247,6 +397,9 @@ int Scl_CommandPrintScl( Abc_Frame_t * pAbc, int argc, char **argv )
         case 'i':
             fInvOnly ^= 1;
             break;
+        case 's':
+            fShort ^= 1;
+            break;
         case 'h':
             goto usage;
         default:
@@ -260,15 +413,16 @@ int Scl_CommandPrintScl( Abc_Frame_t * pAbc, int argc, char **argv )
     }
 
     // save current library
-    Abc_SclPrintCells( (SC_Lib *)pAbc->pLibScl, Slew, Gain, fInvOnly );
+    Abc_SclPrintCells( (SC_Lib *)pAbc->pLibScl, Slew, Gain, fInvOnly, fShort );
     return 0;
 
 usage:
-    fprintf( pAbc->Err, "usage: print_scl [-SG float] [-ih]\n" );
+    fprintf( pAbc->Err, "usage: print_scl [-SG float] [-ish]\n" );
     fprintf( pAbc->Err, "\t           prints statistics of Liberty library\n" );
     fprintf( pAbc->Err, "\t-S float : the slew parameter used to generate the library [default = %.2f]\n", Slew );
     fprintf( pAbc->Err, "\t-G float : the gain parameter used to generate the library [default = %.2f]\n", Gain );
     fprintf( pAbc->Err, "\t-i       : toggle printing invs/bufs only [default = %s]\n", fInvOnly? "yes": "no" );
+    fprintf( pAbc->Err, "\t-s       : toggle printing in short format [default = %s]\n", fShort? "yes": "no" );
     fprintf( pAbc->Err, "\t-h       : print the help massage\n" );
     return 1;
 }

src/map/scl/sclLib.h

@@ -201,6 +201,7 @@ struct SC_Cell_
 struct SC_Lib_ 
 {
     char *         pName;
+    char *         pFileName;
     char *         default_wire_load;
     char *         default_wire_load_sel;
     float          default_max_out_slew;   // -- 'default_max_transition'; this is copied to each output pin where 'max_transition' is not defined  (not used)
@@ -237,7 +238,7 @@ static inline SC_Cell *   SC_LibCell( SC_Lib * p, int i )           { return (SC
 static inline SC_Pin  *   SC_CellPin( SC_Cell * p, int i )          { return (SC_Pin *)Vec_PtrEntry(p->vPins, i);                     }
 static inline Vec_Wrd_t * SC_CellFunc( SC_Cell * p )                { return SC_CellPin(p, p->n_inputs)->vFunc;                       }
 static inline float       SC_CellPinCap( SC_Cell * p, int i )       { return 0.5 * SC_CellPin(p, i)->rise_cap + 0.5 * SC_CellPin(p, i)->fall_cap; }
-static inline float       SC_CellPinCapAve( SC_Cell * p )           { int i; float c = 0; for (i = 0; i < p->n_inputs; i++) c += SC_CellPinCap(p, i); return c / p->n_inputs; }
+static inline float       SC_CellPinCapAve( SC_Cell * p )           { int i; float c = 0; for (i = 0; i < p->n_inputs; i++) c += SC_CellPinCap(p, i); return c / Abc_MaxInt(1, p->n_inputs); }
 static inline char *      SC_CellPinOutFunc( SC_Cell * p, int i )   { return SC_CellPin(p, p->n_inputs + i)->func_text;               }
 static inline char *      SC_CellPinName( SC_Cell * p, int i )      { return SC_CellPin(p, i)->pName;                                 }
 
@@ -462,6 +463,7 @@ static inline void Abc_SclLibFree( SC_Lib * p )
     Vec_PtrFree( p->vCells );
     Vec_PtrFree( p->vCellClasses );
     ABC_FREE( p->pName );
+    ABC_FREE( p->pFileName );
     ABC_FREE( p->default_wire_load );
     ABC_FREE( p->default_wire_load_sel );
     ABC_FREE( p->pBins );
@@ -578,22 +580,27 @@ static inline float Scl_LibPinArrivalEstimate( SC_Cell * pCell, int iPin, float
     return  0.5 * ArrOut.fall +  0.5 * ArrOut.rise;
 }
 
-/*=== sclLib.c ===============================================================*/
-extern SC_Lib *      Abc_SclRead( char * pFileName );
-extern void          Abc_SclWrite( char * pFileName, SC_Lib * p );
-extern void          Abc_SclWriteText( char * pFileName, SC_Lib * p );
-extern void          Abc_SclLoad( char * pFileName, SC_Lib ** ppScl );
-extern void          Abc_SclSave( char * pFileName, SC_Lib * pScl );
+/*=== sclLiberty.c ===============================================================*/
+extern SC_Lib *      Abc_SclReadLiberty( char * pFileName, int fVerbose, int fVeryVerbose );
+/*=== sclLibScl.c ===============================================================*/
+extern SC_Lib *      Abc_SclReadFromStr( Vec_Str_t * vOut );
+extern SC_Lib *      Abc_SclReadFromFile( char * pFileName );
+extern void          Abc_SclWriteScl( char * pFileName, SC_Lib * p );
+extern void          Abc_SclWriteLiberty( char * pFileName, SC_Lib * p );
+/*=== sclLibUtil.c ===============================================================*/
 extern void          Abc_SclHashCells( SC_Lib * p );
 extern int           Abc_SclCellFind( SC_Lib * p, char * pName );
 extern int           Abc_SclClassCellNum( SC_Cell * pClass );
 extern void          Abc_SclLinkCells( SC_Lib * p );
-extern void          Abc_SclPrintCells( SC_Lib * p, float Slew, float Gain, int fInvOnly );
+extern void          Abc_SclPrintCells( SC_Lib * p, float Slew, float Gain, int fInvOnly, int fShort );
 extern SC_Cell *     Abc_SclFindInvertor( SC_Lib * p, int fFindBuff );
 extern SC_Cell *     Abc_SclFindSmallestGate( SC_Cell * p, float CinMin );
 extern SC_WireLoad * Abc_SclFindWireLoadModel( SC_Lib * p, float Area );
 extern SC_WireLoad * Abc_SclFetchWireLoadModel( SC_Lib * p, char * pName );
 extern void          Abc_SclDumpGenlib( char * pFileName, SC_Lib * p, float Slew, float Gain, int nGatesMin );
+extern void          Abc_SclDeriveGenlib( void * pScl, float Slew, float Gain, int nGatesMin );
+
+
 
 ABC_NAMESPACE_HEADER_END
 

src/map/scl/sclLib.c → src/map/scl/sclLibScl.c

 /**CFile****************************************************************
 
-  FileName    [sclLib.c]
+  FileName    [sclLibScl.c]
 
   SystemName  [ABC: Logic synthesis and verification system.]
 
   PackageName [Standard-cell library representation.]
 
-  Synopsis    [Standard cell library.]
+  Synopsis    [Liberty abstraction for delay-oriented mapping.]
 
   Author      [Alan Mishchenko, Niklas Een]
   
@@ -14,7 +14,7 @@
 
   Date        [Ver. 1.0. Started - August 24, 2012.]
 
-  Revision    [$Id: sclLib.c,v 1.0 2012/08/24 00:00:00 alanmi Exp $]
+  Revision    [$Id: sclLibScl.c,v 1.0 2012/08/24 00:00:00 alanmi Exp $]
 
 ***********************************************************************/
 
@@ -131,7 +131,13 @@ static void Abc_SclReadLibrary( Vec_Str_t * vOut, int * pPos, SC_Lib * p )
 
         pCell->n_inputs       = Vec_StrGetI(vOut, pPos);
         pCell->n_outputs      = Vec_StrGetI(vOut, pPos);
-
+/*
+        printf( "%s\n", pCell->pName );
+        if ( !strcmp( "XOR3_X4M_A9TL", pCell->pName ) )
+        {
+            int s = 0;
+        }
+*/
         for ( j = 0; j < pCell->n_inputs; j++ )
         {
             SC_Pin * pPin = Abc_SclPinAlloc();
@@ -194,6 +200,13 @@ static void Abc_SclReadLibrary( Vec_Str_t * vOut, int * pPos, SC_Lib * p )
                     Vec_WrdFree( pPin->vFunc );
                     pPin->vFunc = Mio_ParseFormulaTruth( pPin->func_text, (char **)Vec_PtrArray(vNames), pCell->n_inputs );
                     Vec_PtrFree( vNames );
+                    // skip truth table
+                    assert( Vec_WrdSize(pPin->vFunc) == Abc_Truth6WordNum(pCell->n_inputs) );
+                    for ( k = 0; k < Vec_WrdSize(pPin->vFunc); k++ )
+                    {
+                        word Value = Vec_StrGetW(vOut, pPos);
+                        assert( Value == Vec_WrdEntry(pPin->vFunc, k) );
+                    }
                 }
             }
 
@@ -217,18 +230,30 @@ static void Abc_SclReadLibrary( Vec_Str_t * vOut, int * pPos, SC_Lib * p )
                     Abc_SclReadSurface( vOut, pPos, pTime->pFallTrans );
                 }
                 else
-                    assert( Vec_PtrSize(pPin->vRTimings) == 0 );
+                    assert( Vec_PtrSize(pRTime->vTimings) == 0 );
             }
         }
     }
 }
-SC_Lib * Abc_SclRead( char * pFileName )
+SC_Lib * Abc_SclReadFromStr( Vec_Str_t * vOut )
+{
+    SC_Lib * p;
+    int Pos = 0;
+    // read the library
+    p = Abc_SclLibAlloc();
+    Abc_SclReadLibrary( vOut, &Pos, p );
+    assert( Pos == Vec_StrSize(vOut) );
+    // hash gates by name
+    Abc_SclHashCells( p );
+    Abc_SclLinkCells( p );
+    return p;
+}
+SC_Lib * Abc_SclReadFromFile( char * pFileName )
 {
     SC_Lib * p;
     FILE * pFile;
     Vec_Str_t * vOut;
-    int nFileSize, Pos = 0;
-
+    int nFileSize;
     pFile = fopen( pFileName, "rb" );
     if ( pFile == NULL )
     {
@@ -247,27 +272,11 @@ SC_Lib * Abc_SclRead( char * pFileName )
     assert( nFileSize == Vec_StrSize(vOut) );
     fclose( pFile );
     // read the library
-    p = Abc_SclLibAlloc();
-    Abc_SclReadLibrary( vOut, &Pos, p );
-    assert( Pos == Vec_StrSize(vOut) );
+    p = Abc_SclReadFromStr( vOut );
+    p->pFileName = Abc_UtilStrsav( pFileName );
     Vec_StrFree( vOut );
-    // hash gates by name
-    Abc_SclHashCells( p );
-    Abc_SclLinkCells( p );
     return p;
 }
-void Abc_SclLoad( char * pFileName, SC_Lib ** ppScl )
-{
-    if ( *ppScl )
-    {
-        Abc_SclLibFree( *ppScl );
-        *ppScl = NULL;
-    }
-    assert( *ppScl == NULL );
-    if ( pFileName )
-        *(SC_Lib **)ppScl = Abc_SclRead( pFileName );
-}
-
 
 /**Function*************************************************************
 
@@ -436,7 +445,7 @@ static void Abc_SclWriteLibrary( Vec_Str_t * vOut, SC_Lib * p )
         }
     }
 }
-void Abc_SclWrite( char * pFileName, SC_Lib * p )
+void Abc_SclWriteScl( char * pFileName, SC_Lib * p )
 {
     Vec_Str_t * vOut;
     vOut = Vec_StrAlloc( 10000 );
@@ -454,11 +463,6 @@ void Abc_SclWrite( char * pFileName, SC_Lib * p )
     }
     Vec_StrFree( vOut );    
 }
-void Abc_SclSave( char * pFileName, SC_Lib * pScl )
-{
-    if ( pScl == NULL ) return;
-    Abc_SclWrite( pFileName, pScl );
-}
 
 
 /**Function*************************************************************
@@ -526,6 +530,8 @@ static void Abc_SclWriteLibraryText( FILE * s, SC_Lib * p )
     SC_Pin * pPin;
     int n_valid_cells;
     int i, j, k;
+    fprintf( s, "/* This Liberty file was generated by ABC on %s. */\n", Extra_TimeStamp() );
+    fprintf( s, "/* The original unabridged library came from file \"%s\".*/\n\n", p->pFileName );
 
 //    fprintf( s, "%d", ABC_SCL_CUR_VERSION );
     fprintf( s, "library(%s) {\n\n",                         p->pName );
@@ -551,8 +557,8 @@ static void Abc_SclWriteLibraryText( FILE * s, SC_Lib * p )
     SC_LibForEachWireLoad( p, pWL, i )
     {
         fprintf( s, "  wire_load(\"%s\") {\n", pWL->pName );
-        fprintf( s, "    capacitance : %f;\n", pWL->cap );
         fprintf( s, "    resistance : %f;\n", pWL->res );
+        fprintf( s, "    capacitance : %f;\n", pWL->cap );
         for ( j = 0; j < Vec_IntSize(pWL->vFanout); j++ )
             fprintf( s, "    fanout_length( %d, %f );\n", Vec_IntEntry(pWL->vFanout, j), Vec_FltEntry(pWL->vLen, j) );
         fprintf( s, "  }\n\n" );
@@ -654,7 +660,7 @@ static void Abc_SclWriteLibraryText( FILE * s, SC_Lib * p )
     }
     fprintf( s, "}\n\n" );
 }
-void Abc_SclWriteText( char * pFileName, SC_Lib * p )
+void Abc_SclWriteLiberty( char * pFileName, SC_Lib * p )
 {
     FILE * pFile = fopen( pFileName, "wb" );
     if ( pFile == NULL )
@@ -663,553 +669,10 @@ void Abc_SclWriteText( char * pFileName, SC_Lib * p )
     {
         Abc_SclWriteLibraryText( pFile, p );
         fclose( pFile );
+        printf( "Dumped internal library into Liberty file \"%s\".\n", pFileName );
     }
 }
 
-
-/**Function*************************************************************
-
-  Synopsis    [Reading library from file.]
-
-  Description []
-               
-  SideEffects []
-
-  SeeAlso     []
-
-***********************************************************************/
-static unsigned Abc_SclHashString( char * pName, int TableSize ) 
-{
-    static int s_Primes[10] = { 1291, 1699, 2357, 4177, 5147, 5647, 6343, 7103, 7873, 8147 };
-    unsigned i, Key = 0;
-    for ( i = 0; pName[i] != '\0'; i++ )
-        Key += s_Primes[i%10]*pName[i]*pName[i];
-    return Key % TableSize;
-}
-int * Abc_SclHashLookup( SC_Lib * p, char * pName )
-{
-    int i;
-    for ( i = Abc_SclHashString(pName, p->nBins); i < p->nBins; i = (i + 1) % p->nBins )
-        if ( p->pBins[i] == -1 || !strcmp(pName, SC_LibCell(p, p->pBins[i])->pName) )
-            return p->pBins + i;
-    assert( 0 );
-    return NULL;
-}
-void Abc_SclHashCells( SC_Lib * p )
-{
-    SC_Cell * pCell;
-    int i, * pPlace;
-    assert( p->nBins == 0 );
-    p->nBins = Abc_PrimeCudd( 5 * Vec_PtrSize(p->vCells) );
-    p->pBins = ABC_FALLOC( int, p->nBins );
-    SC_LibForEachCell( p, pCell, i )
-    {
-        pPlace = Abc_SclHashLookup( p, pCell->pName );
-        assert( *pPlace == -1 );
-        *pPlace = i;
-    }
-}
-int Abc_SclCellFind( SC_Lib * p, char * pName )
-{
-    int *pPlace = Abc_SclHashLookup( p, pName );
-    return pPlace ? *pPlace : -1;
-}
-int Abc_SclClassCellNum( SC_Cell * pClass )
-{
-    SC_Cell * pCell;
-    int i, Count = 0;
-    SC_RingForEachCell( pClass, pCell, i )
-        if ( !pCell->fSkip )
-            Count++;
-    return Count;
-}
-
-/**Function*************************************************************
-
-  Synopsis    [Links equal gates into rings while sorting them by area.]
-
-  Description []
-               
-  SideEffects []
-
-  SeeAlso     []
-
-***********************************************************************/
-static int Abc_SclCompareCells( SC_Cell ** pp1, SC_Cell ** pp2 )
-{
-    if ( (*pp1)->n_inputs < (*pp2)->n_inputs )
-        return -1;
-    if ( (*pp1)->n_inputs > (*pp2)->n_inputs )
-        return 1;
-//    if ( (*pp1)->area < (*pp2)->area )
-//        return -1;
-//    if ( (*pp1)->area > (*pp2)->area )
-//        return 1;
-    if ( SC_CellPinCapAve(*pp1) < SC_CellPinCapAve(*pp2) )
-        return -1;
-    if ( SC_CellPinCapAve(*pp1) > SC_CellPinCapAve(*pp2) )
-        return 1;
-    return strcmp( (*pp1)->pName, (*pp2)->pName );
-}
-void Abc_SclLinkCells( SC_Lib * p )
-{
-    Vec_Ptr_t * vList;
-    SC_Cell * pCell, * pRepr = NULL;
-    int i, k;
-    assert( Vec_PtrSize(p->vCellClasses) == 0 );
-    SC_LibForEachCell( p, pCell, i )
-    {
-        // find gate with the same function
-        SC_LibForEachCellClass( p, pRepr, k )
-            if ( pCell->n_inputs  == pRepr->n_inputs && 
-                 pCell->n_outputs == pRepr->n_outputs && 
-                 Vec_WrdEqual(SC_CellFunc(pCell), SC_CellFunc(pRepr)) )
-                break;
-        if ( k == Vec_PtrSize(p->vCellClasses) )
-        {
-            Vec_PtrPush( p->vCellClasses, pCell );
-            pCell->pNext = pCell->pPrev = pCell;
-            continue;
-        }
-        // add it to the list before the cell
-        pRepr->pPrev->pNext = pCell; pCell->pNext = pRepr;
-        pCell->pPrev = pRepr->pPrev; pRepr->pPrev = pCell;
-    }
-    // sort cells by size then by name
-    qsort( (void *)Vec_PtrArray(p->vCellClasses), Vec_PtrSize(p->vCellClasses), sizeof(void *), (int(*)(const void *,const void *))Abc_SclCompareCells );
-    // sort cell lists
-    vList = Vec_PtrAlloc( 100 );
-    SC_LibForEachCellClass( p, pRepr, k )
-    {
-        Vec_PtrClear( vList );
-        SC_RingForEachCell( pRepr, pCell, i )
-            Vec_PtrPush( vList, pCell );
-        qsort( (void *)Vec_PtrArray(vList), Vec_PtrSize(vList), sizeof(void *), (int(*)(const void *,const void *))Abc_SclCompareCells );
-        // create new representative
-        pRepr = (SC_Cell *)Vec_PtrEntry( vList, 0 );
-        pRepr->pNext = pRepr->pPrev = pRepr;
-        pRepr->pRepr = pRepr;
-        pRepr->pAve  = (SC_Cell *)Vec_PtrEntry( vList, Vec_PtrSize(vList)/2 );
-        pRepr->Order = 0;
-        pRepr->nGates = Vec_PtrSize(vList);
-        // relink cells
-        Vec_PtrForEachEntryStart( SC_Cell *, vList, pCell, i, 1 )
-        {
-            pRepr->pPrev->pNext = pCell; pCell->pNext = pRepr;
-            pCell->pPrev = pRepr->pPrev; pRepr->pPrev = pCell;
-            pCell->pRepr = pRepr;
-            pCell->pAve  = (SC_Cell *)Vec_PtrEntry( vList, Vec_PtrSize(vList)/2 );
-            pCell->Order = i;
-            pCell->nGates = Vec_PtrSize(vList);
-        }
-        // update list
-        Vec_PtrWriteEntry( p->vCellClasses, k, pRepr );
-    }
-    Vec_PtrFree( vList );
-}
-
-/**Function*************************************************************
-
-  Synopsis    [Returns the largest inverter.]
-
-  Description []
-               
-  SideEffects []
-
-  SeeAlso     []
-
-***********************************************************************/
-SC_Cell * Abc_SclFindInvertor( SC_Lib * p, int fFindBuff )
-{
-    SC_Cell * pCell = NULL;
-    word Truth = fFindBuff ? ABC_CONST(0xAAAAAAAAAAAAAAAA) : ABC_CONST(0x5555555555555555);
-    int k;
-    SC_LibForEachCellClass( p, pCell, k )
-        if ( pCell->n_inputs == 1 && Vec_WrdEntry(SC_CellPin(pCell, 1)->vFunc, 0) == Truth )
-            break;
-    // take representative
-    return pCell ? pCell->pRepr : NULL;
-}
-SC_Cell * Abc_SclFindSmallestGate( SC_Cell * p, float CinMin )
-{
-    SC_Cell * pRes = NULL;
-    int i;
-    SC_RingForEachCell( p->pRepr, pRes, i )
-        if ( SC_CellPinCapAve(pRes) > CinMin )
-            return pRes;
-    // take the largest gate
-    return p->pRepr->pPrev;
-}
-
-/**Function*************************************************************
-
-  Synopsis    [Returns the wireload model for the given area.]
-
-  Description []
-               
-  SideEffects []
-
-  SeeAlso     []
-
-***********************************************************************/
-SC_WireLoad * Abc_SclFetchWireLoadModel( SC_Lib * p, char * pWLoadUsed )
-{
-    SC_WireLoad * pWL = NULL;
-    int i;
-    // Get the actual table and reformat it for 'wire_cap' output:
-    assert( pWLoadUsed != NULL );
-    SC_LibForEachWireLoad( p, pWL, i )
-        if ( !strcmp(pWL->pName, pWLoadUsed) )
-            break;
-    if ( i == Vec_PtrSize(p->vWireLoads) )
-    {
-        Abc_Print( -1, "Cannot find wire load model \"%s\".\n", pWLoadUsed );
-        exit(1);
-    }
-//    printf( "Using wireload model \"%s\".\n", pWL->pName );
-    return pWL;
-}
-SC_WireLoad * Abc_SclFindWireLoadModel( SC_Lib * p, float Area )
-{
-    char * pWLoadUsed = NULL;
-    int i;
-    if ( p->default_wire_load_sel && strlen(p->default_wire_load_sel) )
-    {
-        SC_WireLoadSel * pWLS = NULL;
-        SC_LibForEachWireLoadSel( p, pWLS, i )
-            if ( !strcmp(pWLS->pName, p->default_wire_load_sel) )
-                break;
-        if ( i == Vec_PtrSize(p->vWireLoadSels) )
-        {
-            Abc_Print( -1, "Cannot find wire load selection model \"%s\".\n", p->default_wire_load_sel );
-            exit(1);
-        }
-        for ( i = 0; i < Vec_FltSize(pWLS->vAreaFrom); i++)
-            if ( Area >= Vec_FltEntry(pWLS->vAreaFrom, i) && Area <  Vec_FltEntry(pWLS->vAreaTo, i) )
-            {
-                pWLoadUsed = (char *)Vec_PtrEntry(pWLS->vWireLoadModel, i);
-                break;
-            }
-        if ( i == Vec_FltSize(pWLS->vAreaFrom) )
-            pWLoadUsed = (char *)Vec_PtrEntryLast(pWLS->vWireLoadModel);
-    }
-    else if ( p->default_wire_load && strlen(p->default_wire_load) )
-        pWLoadUsed = p->default_wire_load;
-    else
-    {
-        Abc_Print( 0, "No wire model given.\n" );
-        return NULL;
-    }
-    return Abc_SclFetchWireLoadModel( p, pWLoadUsed );
-}
-
-/**Function*************************************************************
-
-  Synopsis    [Compute delay parameters of pin/cell/class.]
-
-  Description []
-               
-  SideEffects []
-
-  SeeAlso     []
-
-***********************************************************************/
-void Abc_SclComputeParametersPin( SC_Lib * p, SC_Cell * pCell, int iPin, float Slew, float * pLD, float * pPD )
-{
-    SC_Pair Load0, Load1, Load2;
-    SC_Pair ArrIn  = { 0.0, 0.0 };
-    SC_Pair SlewIn = { Slew, Slew };
-    SC_Pair ArrOut0 = { 0.0, 0.0 };
-    SC_Pair ArrOut1 = { 0.0, 0.0 };
-    SC_Pair ArrOut2 = { 0.0, 0.0 };
-    SC_Pair SlewOut = { 0.0, 0.0 };
-    SC_Timing * pTime = Scl_CellPinTime( pCell, iPin );
-    Vec_Flt_t * vIndex = pTime->pCellRise->vIndex1; // capacitance
-    // get load points
-    Load0.rise = Load0.fall = 0.0;
-    Load1.rise = Load1.fall = Vec_FltEntry( vIndex, 0 );
-    Load2.rise = Load2.fall = Vec_FltEntry( vIndex, Vec_FltSize(vIndex) - 2 );
-    // compute delay
-    Scl_LibPinArrival( pTime, &ArrIn, &SlewIn, &Load0, &ArrOut0, &SlewOut );
-    Scl_LibPinArrival( pTime, &ArrIn, &SlewIn, &Load1, &ArrOut1, &SlewOut );
-    Scl_LibPinArrival( pTime, &ArrIn, &SlewIn, &Load2, &ArrOut2, &SlewOut );
-    ArrOut0.rise = 0.5 * ArrOut0.rise + 0.5 * ArrOut0.fall;
-    ArrOut1.rise = 0.5 * ArrOut1.rise + 0.5 * ArrOut1.fall;
-    ArrOut2.rise = 0.5 * ArrOut2.rise + 0.5 * ArrOut2.fall;
-    // get tangent
-    *pLD = (ArrOut2.rise - ArrOut1.rise) / ((Load2.rise - Load1.rise) / SC_CellPinCap(pCell, iPin));
-    // get constant
-    *pPD = ArrOut0.rise;
-}
-void Abc_SclComputeParametersCell( SC_Lib * p, SC_Cell * pCell, float Slew, float * pLD, float * pPD )
-{
-    SC_Pin * pPin;
-    float LD, PD, ld, pd;
-    int i;
-    LD = PD = ld = pd = 0;
-    SC_CellForEachPinIn( pCell, pPin, i )
-    {
-        Abc_SclComputeParametersPin( p, pCell, i, Slew, &ld, &pd );
-        LD += ld; PD += pd;
-    }
-    *pLD = LD / pCell->n_inputs;
-    *pPD = PD / pCell->n_inputs;
-}
-void Abc_SclComputeParametersClass( SC_Lib * p, SC_Cell * pRepr, float Slew, float * pLD, float * pPD )
-{
-    SC_Cell * pCell;
-    float LD, PD, ld, pd;
-    int i, Count = 0;
-    LD = PD = ld = pd = 0;
-    SC_RingForEachCell( pRepr, pCell, i )
-    {
-        Abc_SclComputeParametersCell( p, pCell, Slew, &ld, &pd );
-        LD += ld; PD += pd;
-        Count++;
-    }
-    *pLD = LD / Count;
-    *pPD = PD / Count;
-}
-void Abc_SclComputeParametersClassPin( SC_Lib * p, SC_Cell * pRepr, int iPin, float Slew, float * pLD, float * pPD )
-{
-    SC_Cell * pCell;
-    float LD, PD, ld, pd;
-    int i, Count = 0;
-    LD = PD = ld = pd = 0;
-    SC_RingForEachCell( pRepr, pCell, i )
-    {
-        Abc_SclComputeParametersPin( p, pCell, iPin, Slew, &ld, &pd );
-        LD += ld; PD += pd;
-        Count++;
-    }
-    *pLD = LD / Count;
-    *pPD = PD / Count;
-}
-float Abc_SclComputeDelayCellPin( SC_Lib * p, SC_Cell * pCell, int iPin, float Slew, float Gain )
-{
-    float LD = 0, PD = 0;
-    Abc_SclComputeParametersPin( p, pCell, iPin, Slew, &LD, &PD );
-    return 0.01 * LD * Gain + PD;
-}
-float Abc_SclComputeDelayClassPin( SC_Lib * p, SC_Cell * pRepr, int iPin, float Slew, float Gain )
-{
-    SC_Cell * pCell;
-    float Delay = 0;
-    int i, Count = 0;
-    SC_RingForEachCell( pRepr, pCell, i )
-    {
-        if ( pCell->fSkip ) 
-            continue;
-//        if ( pRepr == pCell ) // skip the first gate
-//            continue;
-        Delay += Abc_SclComputeDelayCellPin( p, pCell, iPin, Slew, Gain );
-        Count++;
-    }
-    return Delay / Abc_MaxInt(1, Count);
-}
-float Abc_SclComputeAreaClass( SC_Cell * pRepr )
-{
-    SC_Cell * pCell;
-    float Area = 0;
-    int i, Count = 0;
-    SC_RingForEachCell( pRepr, pCell, i )
-    {
-        if ( pCell->fSkip ) 
-            continue;
-        Area += pCell->area;
-        Count++;
-    }
-    return Area / Count;
-}
-
-/**Function*************************************************************
-
-  Synopsis    [Print cells]
-
-  Description []
-               
-  SideEffects []
-
-  SeeAlso     []
-
-***********************************************************************/
-void Abc_SclMarkSkippedCells( SC_Lib * p )
-{
-    char FileName[1000];
-    char Buffer[1000], * pName;
-    SC_Cell * pCell;
-    FILE * pFile;
-    int CellId, nSkipped = 0;
-    sprintf( FileName, "%s.skip", p->pName );
-    pFile = fopen( FileName, "rb" );
-    if ( pFile == NULL )
-        return;
-    while ( fgets( Buffer, 999, pFile ) != NULL )
-    {
-        pName = strtok( Buffer, "\r\n\t " );
-        if ( pName == NULL )
-            continue;
-        CellId = Abc_SclCellFind( p, pName );
-        if ( CellId == -1 )
-        {
-            printf( "Cannot find cell \"%s\" in the library \"%s\".\n", pName, p->pName );
-            continue;
-        }
-        pCell = SC_LibCell( p, CellId );
-        pCell->fSkip = 1;
-        nSkipped++;
-    }
-    fclose( pFile );
-    printf( "Marked %d cells for skipping in the library \"%s\".\n", nSkipped, p->pName );
-}
-void Abc_SclPrintCells( SC_Lib * p, float Slew, float Gain, int fInvOnly )
-{
-    SC_Cell * pCell, * pRepr;
-    int i, k, nLength = 0;
-    float LD = 0, PD = 0;
-    assert( Vec_PtrSize(p->vCellClasses) > 0 );
-    printf( "Library \"%s\" ", p->pName );
-    printf( "has %d cells in %d classes.  ", 
-        Vec_PtrSize(p->vCells), Vec_PtrSize(p->vCellClasses) );
-    printf( "Delay estimate is based on slew %.2f and gain %.2f.\n", Slew, Gain );
-    Abc_SclMarkSkippedCells( p );
-    // find the longest name
-    SC_LibForEachCellClass( p, pRepr, k )
-        SC_RingForEachCell( pRepr, pCell, i )
-            nLength = Abc_MaxInt( nLength, strlen(pRepr->pName) );
-    // print cells
-    SC_LibForEachCellClass( p, pRepr, k )
-    {
-        if ( fInvOnly && pRepr->n_inputs != 1 )
-            continue;
-        printf( "Class%3d : ", k );
-        printf( "Ins = %d  ",  pRepr->n_inputs );
-        printf( "Outs = %d",   pRepr->n_outputs );
-        for ( i = 0; i < pRepr->n_outputs; i++ )
-        {
-            printf( "   "  );
-            Kit_DsdPrintFromTruth( (unsigned *)Vec_WrdArray(SC_CellPin(pRepr, pRepr->n_inputs+i)->vFunc), pRepr->n_inputs );
-        }
-        printf( "\n" );
-        SC_RingForEachCell( pRepr, pCell, i )
-        {
-            Abc_SclComputeParametersCell( p, pCell, Slew, &LD, &PD );
-            printf( "  %3d ",           i+1 );
-            printf( "%s",               pCell->fSkip ? "s" : " " );
-            printf( " : " );
-            printf( "%-*s  ",           nLength, pCell->pName );
-            printf( "%2d   ",           pCell->drive_strength );
-            printf( "A =%8.2f    ",      pCell->area );
-            printf( "D =%5.0f ps  ",    0.01 * LD * Gain + PD );
-            printf( "LD =%5.0f ps  ",   LD );
-            printf( "PD =%5.0f ps    ", PD );
-            printf( "C =%5.1f ff  ",    SC_CellPinCapAve(pCell) );
-            printf( "Cm =%5.0f ff    ", SC_CellPin(pCell, pCell->n_inputs)->max_out_cap );
-            printf( "Sm =%5.1f ps ",    SC_CellPin(pCell, pCell->n_inputs)->max_out_slew );
-            printf( "\n" );
-        }
-    }
-}
-
-/**Function*************************************************************
-
-  Synopsis    [Derive GENLIB library.]
-
-  Description []
-               
-  SideEffects []
-
-  SeeAlso     []
-
-***********************************************************************/
-Vec_Str_t * Abc_SclDeriveGenlibStr( SC_Lib * p, float Slew, float Gain, int nGatesMin, int * pnCellCount )
-{
-    extern char * Abc_SclFindGateFormula( char * pGateName, char * pOutName );
-    char Buffer[200];
-    Vec_Str_t * vStr;
-    SC_Cell * pRepr;
-    SC_Pin * pPin;
-    int i, k, Count = 2;
-    Abc_SclMarkSkippedCells( p );
-    vStr = Vec_StrAlloc( 1000 );
-    Vec_StrPrintStr( vStr, "GATE _const0_            0.00 z=CONST0;\n" );
-    Vec_StrPrintStr( vStr, "GATE _const1_            0.00 z=CONST1;\n" );
-    SC_LibForEachCellClass( p, pRepr, i )
-    {
-        if ( pRepr->n_outputs > 1 )
-            continue;
-        if ( Abc_SclClassCellNum(pRepr) < nGatesMin )
-            continue;
-        assert( strlen(pRepr->pName) < 200 );
-        Vec_StrPrintStr( vStr, "GATE " );
-        sprintf( Buffer, "%-16s", pRepr->pName );
-        Vec_StrPrintStr( vStr, Buffer );
-        Vec_StrPrintStr( vStr, " " );
-//        sprintf( Buffer, "%7.2f", Abc_SclComputeAreaClass(pRepr) );
-        sprintf( Buffer, "%7.2f", pRepr->area );
-        Vec_StrPrintStr( vStr, Buffer );
-        Vec_StrPrintStr( vStr, " " );
-        Vec_StrPrintStr( vStr, SC_CellPinName(pRepr, pRepr->n_inputs) );
-        Vec_StrPrintStr( vStr, "=" );
-//        Vec_StrPrintStr( vStr, SC_CellPinOutFunc(pRepr, 0) );
-        Vec_StrPrintStr( vStr, Abc_SclFindGateFormula(pRepr->pName, SC_CellPinName(pRepr, pRepr->n_inputs)) );
-        Vec_StrPrintStr( vStr, ";\n" );
-        SC_CellForEachPinIn( pRepr, pPin, k )
-        {
-            float Delay = Abc_SclComputeDelayClassPin( p, pRepr, k, Slew, Gain );
-            assert( Delay > 0 );
-            Vec_StrPrintStr( vStr, "         PIN " );
-            sprintf( Buffer, "%-4s", pPin->pName );
-            Vec_StrPrintStr( vStr, Buffer );
-            sprintf( Buffer, " UNKNOWN  1  999  %7.2f  0.00  %7.2f  0.00\n", Delay, Delay );
-            Vec_StrPrintStr( vStr, Buffer );
-        }
-        Count++;
-    }
-    Vec_StrPrintStr( vStr, "\n.end\n" );
-    Vec_StrPush( vStr, '\0' );
-//    printf( "%s", Vec_StrArray(vStr) );
-//    printf( "GENLIB library with %d gates is produced.\n", Count );
-    if ( pnCellCount )
-        *pnCellCount = Count;
-    return vStr;
-}
-void Abc_SclDumpGenlib( char * pFileName, SC_Lib * p, float Slew, float Gain, int nGatesMin )
-{
-    char FileName[1000];
-    int nCellCount = 0;
-    Vec_Str_t * vStr;
-    FILE * pFile;
-    if ( pFileName == NULL )
-        sprintf( FileName, "%s_s%03d_g%03d_m%d.genlib", p->pName, (int)Slew, (int)Gain, nGatesMin );
-    else
-        sprintf( FileName, "%s", pFileName );
-    pFile = fopen( FileName, "wb" );
-    if ( pFile == NULL )
-    {
-        printf( "Cannot open file \"%s\" for writing.\n", FileName );
-        return;
-    }
-    vStr = Abc_SclDeriveGenlibStr( p, Slew, Gain, nGatesMin, &nCellCount );
-    fprintf( pFile, "%s", Vec_StrArray(vStr) );
-    Vec_StrFree( vStr );
-    fclose( pFile );
-    printf( "Written GENLIB library with %d gates into file \"%s\".\n", nCellCount, FileName );
-}
-void Mio_SclDeriveGenlib( void * pScl, float Slew, float Gain, int nGatesMin )
-{
-    int nGateCount = 0;
-    Vec_Str_t * vStr = Abc_SclDeriveGenlibStr( (SC_Lib *)pScl, Slew, Gain, nGatesMin, &nGateCount );
-    Vec_Str_t * vStr2 = Vec_StrDup( vStr );
-    int RetValue = Mio_UpdateGenlib2( vStr, vStr2, ((SC_Lib *)pScl)->pName, 0 );
-    Vec_StrFree( vStr );
-    Vec_StrFree( vStr2 );
-    if ( RetValue )
-        printf( "Internally derived GENLIB library \"%s\" with %d gates.\n", ((SC_Lib *)pScl)->pName, nGateCount );
-    else
-        printf( "Reading library has filed.\n" );
-}
-
 ////////////////////////////////////////////////////////////////////////
 ///                       END OF FILE                                ///
 ////////////////////////////////////////////////////////////////////////

src/map/scl/sclLibUtil.c

+/**CFile****************************************************************
+
+  FileName    [sclLibUtil.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Standard-cell library representation.]
+
+  Synopsis    [Various library utilities.]
+
+  Author      [Alan Mishchenko, Niklas Een]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - August 24, 2012.]
+
+  Revision    [$Id: sclLibUtil.c,v 1.0 2012/08/24 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "sclLib.h"
+#include "misc/st/st.h"
+#include "map/mio/mio.h"
+#include "bool/kit/kit.h"
+
+ABC_NAMESPACE_IMPL_START
+
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Reading library from file.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+static unsigned Abc_SclHashString( char * pName, int TableSize ) 
+{
+    static int s_Primes[10] = { 1291, 1699, 2357, 4177, 5147, 5647, 6343, 7103, 7873, 8147 };
+    unsigned i, Key = 0;
+    for ( i = 0; pName[i] != '\0'; i++ )
+        Key += s_Primes[i%10]*pName[i]*pName[i];
+    return Key % TableSize;
+}
+int * Abc_SclHashLookup( SC_Lib * p, char * pName )
+{
+    int i;
+    for ( i = Abc_SclHashString(pName, p->nBins); i < p->nBins; i = (i + 1) % p->nBins )
+        if ( p->pBins[i] == -1 || !strcmp(pName, SC_LibCell(p, p->pBins[i])->pName) )
+            return p->pBins + i;
+    assert( 0 );
+    return NULL;
+}
+void Abc_SclHashCells( SC_Lib * p )
+{
+    SC_Cell * pCell;
+    int i, * pPlace;
+    assert( p->nBins == 0 );
+    p->nBins = Abc_PrimeCudd( 5 * Vec_PtrSize(p->vCells) );
+    p->pBins = ABC_FALLOC( int, p->nBins );
+    SC_LibForEachCell( p, pCell, i )
+    {
+        pPlace = Abc_SclHashLookup( p, pCell->pName );
+        assert( *pPlace == -1 );
+        *pPlace = i;
+    }
+}
+int Abc_SclCellFind( SC_Lib * p, char * pName )
+{
+    int *pPlace = Abc_SclHashLookup( p, pName );
+    return pPlace ? *pPlace : -1;
+}
+int Abc_SclClassCellNum( SC_Cell * pClass )
+{
+    SC_Cell * pCell;
+    int i, Count = 0;
+    SC_RingForEachCell( pClass, pCell, i )
+        if ( !pCell->fSkip )
+            Count++;
+    return Count;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Links equal gates into rings while sorting them by area.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+static int Abc_SclCompareCells( SC_Cell ** pp1, SC_Cell ** pp2 )
+{
+    if ( (*pp1)->n_inputs < (*pp2)->n_inputs )
+        return -1;
+    if ( (*pp1)->n_inputs > (*pp2)->n_inputs )
+        return 1;
+//    if ( (*pp1)->area < (*pp2)->area )
+//        return -1;
+//    if ( (*pp1)->area > (*pp2)->area )
+//        return 1;
+    if ( SC_CellPinCapAve(*pp1) < SC_CellPinCapAve(*pp2) )
+        return -1;
+    if ( SC_CellPinCapAve(*pp1) > SC_CellPinCapAve(*pp2) )
+        return 1;
+    return strcmp( (*pp1)->pName, (*pp2)->pName );
+}
+void Abc_SclLinkCells( SC_Lib * p )
+{
+    Vec_Ptr_t * vList;
+    SC_Cell * pCell, * pRepr = NULL;
+    int i, k;
+    assert( Vec_PtrSize(p->vCellClasses) == 0 );
+    SC_LibForEachCell( p, pCell, i )
+    {
+        // find gate with the same function
+        SC_LibForEachCellClass( p, pRepr, k )
+            if ( pCell->n_inputs  == pRepr->n_inputs && 
+                 pCell->n_outputs == pRepr->n_outputs && 
+                 Vec_WrdEqual(SC_CellFunc(pCell), SC_CellFunc(pRepr)) )
+                break;
+        if ( k == Vec_PtrSize(p->vCellClasses) )
+        {
+            Vec_PtrPush( p->vCellClasses, pCell );
+            pCell->pNext = pCell->pPrev = pCell;
+            continue;
+        }
+        // add it to the list before the cell
+        pRepr->pPrev->pNext = pCell; pCell->pNext = pRepr;
+        pCell->pPrev = pRepr->pPrev; pRepr->pPrev = pCell;
+    }
+    // sort cells by size then by name
+    qsort( (void *)Vec_PtrArray(p->vCellClasses), Vec_PtrSize(p->vCellClasses), sizeof(void *), (int(*)(const void *,const void *))Abc_SclCompareCells );
+    // sort cell lists
+    vList = Vec_PtrAlloc( 100 );
+    SC_LibForEachCellClass( p, pRepr, k )
+    {
+        Vec_PtrClear( vList );
+        SC_RingForEachCell( pRepr, pCell, i )
+            Vec_PtrPush( vList, pCell );
+        qsort( (void *)Vec_PtrArray(vList), Vec_PtrSize(vList), sizeof(void *), (int(*)(const void *,const void *))Abc_SclCompareCells );
+        // create new representative
+        pRepr = (SC_Cell *)Vec_PtrEntry( vList, 0 );
+        pRepr->pNext = pRepr->pPrev = pRepr;
+        pRepr->pRepr = pRepr;
+        pRepr->pAve  = (SC_Cell *)Vec_PtrEntry( vList, Vec_PtrSize(vList)/2 );
+        pRepr->Order = 0;
+        pRepr->nGates = Vec_PtrSize(vList);
+        // relink cells
+        Vec_PtrForEachEntryStart( SC_Cell *, vList, pCell, i, 1 )
+        {
+            pRepr->pPrev->pNext = pCell; pCell->pNext = pRepr;
+            pCell->pPrev = pRepr->pPrev; pRepr->pPrev = pCell;
+            pCell->pRepr = pRepr;
+            pCell->pAve  = (SC_Cell *)Vec_PtrEntry( vList, Vec_PtrSize(vList)/2 );
+            pCell->Order = i;
+            pCell->nGates = Vec_PtrSize(vList);
+        }
+        // update list
+        Vec_PtrWriteEntry( p->vCellClasses, k, pRepr );
+    }
+    Vec_PtrFree( vList );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Returns the largest inverter.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+SC_Cell * Abc_SclFindInvertor( SC_Lib * p, int fFindBuff )
+{
+    SC_Cell * pCell = NULL;
+    word Truth = fFindBuff ? ABC_CONST(0xAAAAAAAAAAAAAAAA) : ABC_CONST(0x5555555555555555);
+    int k;
+    SC_LibForEachCellClass( p, pCell, k )
+        if ( pCell->n_inputs == 1 && Vec_WrdEntry(SC_CellPin(pCell, 1)->vFunc, 0) == Truth )
+            break;
+    // take representative
+    return pCell ? pCell->pRepr : NULL;
+}
+SC_Cell * Abc_SclFindSmallestGate( SC_Cell * p, float CinMin )
+{
+    SC_Cell * pRes = NULL;
+    int i;
+    SC_RingForEachCell( p->pRepr, pRes, i )
+        if ( SC_CellPinCapAve(pRes) > CinMin )
+            return pRes;
+    // take the largest gate
+    return p->pRepr->pPrev;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Returns the wireload model for the given area.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+SC_WireLoad * Abc_SclFetchWireLoadModel( SC_Lib * p, char * pWLoadUsed )
+{
+    SC_WireLoad * pWL = NULL;
+    int i;
+    // Get the actual table and reformat it for 'wire_cap' output:
+    assert( pWLoadUsed != NULL );
+    SC_LibForEachWireLoad( p, pWL, i )
+        if ( !strcmp(pWL->pName, pWLoadUsed) )
+            break;
+    if ( i == Vec_PtrSize(p->vWireLoads) )
+    {
+        Abc_Print( -1, "Cannot find wire load model \"%s\".\n", pWLoadUsed );
+        exit(1);
+    }
+//    printf( "Using wireload model \"%s\".\n", pWL->pName );
+    return pWL;
+}
+SC_WireLoad * Abc_SclFindWireLoadModel( SC_Lib * p, float Area )
+{
+    char * pWLoadUsed = NULL;
+    int i;
+    if ( p->default_wire_load_sel && strlen(p->default_wire_load_sel) )
+    {
+        SC_WireLoadSel * pWLS = NULL;
+        SC_LibForEachWireLoadSel( p, pWLS, i )
+            if ( !strcmp(pWLS->pName, p->default_wire_load_sel) )
+                break;
+        if ( i == Vec_PtrSize(p->vWireLoadSels) )
+        {
+            Abc_Print( -1, "Cannot find wire load selection model \"%s\".\n", p->default_wire_load_sel );
+            exit(1);
+        }
+        for ( i = 0; i < Vec_FltSize(pWLS->vAreaFrom); i++)
+            if ( Area >= Vec_FltEntry(pWLS->vAreaFrom, i) && Area <  Vec_FltEntry(pWLS->vAreaTo, i) )
+            {
+                pWLoadUsed = (char *)Vec_PtrEntry(pWLS->vWireLoadModel, i);
+                break;
+            }
+        if ( i == Vec_FltSize(pWLS->vAreaFrom) )
+            pWLoadUsed = (char *)Vec_PtrEntryLast(pWLS->vWireLoadModel);
+    }
+    else if ( p->default_wire_load && strlen(p->default_wire_load) )
+        pWLoadUsed = p->default_wire_load;
+    else
+    {
+        Abc_Print( 0, "No wire model given.\n" );
+        return NULL;
+    }
+    return Abc_SclFetchWireLoadModel( p, pWLoadUsed );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Compute delay parameters of pin/cell/class.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Abc_SclComputeParametersPin( SC_Lib * p, SC_Cell * pCell, int iPin, float Slew, float * pLD, float * pPD )
+{
+    SC_Pair Load0, Load1, Load2;
+    SC_Pair ArrIn  = { 0.0, 0.0 };
+    SC_Pair SlewIn = { Slew, Slew };
+    SC_Pair ArrOut0 = { 0.0, 0.0 };
+    SC_Pair ArrOut1 = { 0.0, 0.0 };
+    SC_Pair ArrOut2 = { 0.0, 0.0 };
+    SC_Pair SlewOut = { 0.0, 0.0 };
+    SC_Timing * pTime = Scl_CellPinTime( pCell, iPin );
+    Vec_Flt_t * vIndex = pTime->pCellRise->vIndex1; // capacitance
+    // get load points
+    Load0.rise = Load0.fall = 0.0;
+    Load1.rise = Load1.fall = Vec_FltEntry( vIndex, 0 );
+    Load2.rise = Load2.fall = Vec_FltEntry( vIndex, Vec_FltSize(vIndex) - 2 );
+    // compute delay
+    Scl_LibPinArrival( pTime, &ArrIn, &SlewIn, &Load0, &ArrOut0, &SlewOut );
+    Scl_LibPinArrival( pTime, &ArrIn, &SlewIn, &Load1, &ArrOut1, &SlewOut );
+    Scl_LibPinArrival( pTime, &ArrIn, &SlewIn, &Load2, &ArrOut2, &SlewOut );
+    ArrOut0.rise = 0.5 * ArrOut0.rise + 0.5 * ArrOut0.fall;
+    ArrOut1.rise = 0.5 * ArrOut1.rise + 0.5 * ArrOut1.fall;
+    ArrOut2.rise = 0.5 * ArrOut2.rise + 0.5 * ArrOut2.fall;
+    // get tangent
+    *pLD = (ArrOut2.rise - ArrOut1.rise) / ((Load2.rise - Load1.rise) / SC_CellPinCap(pCell, iPin));
+    // get constant
+    *pPD = ArrOut0.rise;
+}
+void Abc_SclComputeParametersCell( SC_Lib * p, SC_Cell * pCell, float Slew, float * pLD, float * pPD )
+{
+    SC_Pin * pPin;
+    float LD, PD, ld, pd;
+    int i;
+    LD = PD = ld = pd = 0;
+    SC_CellForEachPinIn( pCell, pPin, i )
+    {
+        Abc_SclComputeParametersPin( p, pCell, i, Slew, &ld, &pd );
+        LD += ld; PD += pd;
+    }
+    *pLD = LD / Abc_MaxInt(1, pCell->n_inputs);
+    *pPD = PD / Abc_MaxInt(1, pCell->n_inputs);
+}
+void Abc_SclComputeParametersClass( SC_Lib * p, SC_Cell * pRepr, float Slew, float * pLD, float * pPD )
+{
+    SC_Cell * pCell;
+    float LD, PD, ld, pd;
+    int i, Count = 0;
+    LD = PD = ld = pd = 0;
+    SC_RingForEachCell( pRepr, pCell, i )
+    {
+        Abc_SclComputeParametersCell( p, pCell, Slew, &ld, &pd );
+        LD += ld; PD += pd;
+        Count++;
+    }
+    *pLD = LD / Abc_MaxInt(1, Count);
+    *pPD = PD / Abc_MaxInt(1, Count);
+}
+void Abc_SclComputeParametersClassPin( SC_Lib * p, SC_Cell * pRepr, int iPin, float Slew, float * pLD, float * pPD )
+{
+    SC_Cell * pCell;
+    float LD, PD, ld, pd;
+    int i, Count = 0;
+    LD = PD = ld = pd = 0;
+    SC_RingForEachCell( pRepr, pCell, i )
+    {
+        Abc_SclComputeParametersPin( p, pCell, iPin, Slew, &ld, &pd );
+        LD += ld; PD += pd;
+        Count++;
+    }
+    *pLD = LD / Abc_MaxInt(1, Count);
+    *pPD = PD / Abc_MaxInt(1, Count);
+}
+float Abc_SclComputeDelayCellPin( SC_Lib * p, SC_Cell * pCell, int iPin, float Slew, float Gain )
+{
+    float LD = 0, PD = 0;
+    Abc_SclComputeParametersPin( p, pCell, iPin, Slew, &LD, &PD );
+    return 0.01 * LD * Gain + PD;
+}
+float Abc_SclComputeDelayClassPin( SC_Lib * p, SC_Cell * pRepr, int iPin, float Slew, float Gain )
+{
+    SC_Cell * pCell;
+    float Delay = 0;
+    int i, Count = 0;
+    SC_RingForEachCell( pRepr, pCell, i )
+    {
+        if ( pCell->fSkip ) 
+            continue;
+//        if ( pRepr == pCell ) // skip the first gate
+//            continue;
+        Delay += Abc_SclComputeDelayCellPin( p, pCell, iPin, Slew, Gain );
+        Count++;
+    }
+    return Delay / Abc_MaxInt(1, Count);
+}
+float Abc_SclComputeAreaClass( SC_Cell * pRepr )
+{
+    SC_Cell * pCell;
+    float Area = 0;
+    int i, Count = 0;
+    SC_RingForEachCell( pRepr, pCell, i )
+    {
+        if ( pCell->fSkip ) 
+            continue;
+        Area += pCell->area;
+        Count++;
+    }
+    return Area / Abc_MaxInt(1, Count);
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Print cells]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Abc_SclMarkSkippedCells( SC_Lib * p )
+{
+    char FileName[1000];
+    char Buffer[1000], * pName;
+    SC_Cell * pCell;
+    FILE * pFile;
+    int CellId, nSkipped = 0;
+    sprintf( FileName, "%s.skip", p->pName );
+    pFile = fopen( FileName, "rb" );
+    if ( pFile == NULL )
+        return;
+    while ( fgets( Buffer, 999, pFile ) != NULL )
+    {
+        pName = strtok( Buffer, "\r\n\t " );
+        if ( pName == NULL )
+            continue;
+        CellId = Abc_SclCellFind( p, pName );
+        if ( CellId == -1 )
+        {
+            printf( "Cannot find cell \"%s\" in the library \"%s\".\n", pName, p->pName );
+            continue;
+        }
+        pCell = SC_LibCell( p, CellId );
+        pCell->fSkip = 1;
+        nSkipped++;
+    }
+    fclose( pFile );
+    printf( "Marked %d cells for skipping in the library \"%s\".\n", nSkipped, p->pName );
+}
+void Abc_SclPrintCells( SC_Lib * p, float Slew, float Gain, int fInvOnly, int fShort )
+{
+    SC_Cell * pCell, * pRepr;
+    SC_Pin * pPin;
+    int i, j, k, nLength = 0;
+    float LD = 0, PD = 0;
+    assert( Vec_PtrSize(p->vCellClasses) > 0 );
+    printf( "Library \"%s\" ", p->pName );
+    printf( "has %d cells in %d classes.  ", 
+        Vec_PtrSize(p->vCells), Vec_PtrSize(p->vCellClasses) );
+    if ( !fShort )
+        printf( "Delay estimate is based on slew %.2f and gain %.2f.", Slew, Gain );
+    printf( "\n" );
+    Abc_SclMarkSkippedCells( p );
+    // find the longest name
+    SC_LibForEachCellClass( p, pRepr, k )
+        SC_RingForEachCell( pRepr, pCell, i )
+            nLength = Abc_MaxInt( nLength, strlen(pRepr->pName) );
+    // print cells
+    SC_LibForEachCellClass( p, pRepr, k )
+    {
+        if ( fInvOnly && pRepr->n_inputs != 1 )
+            continue;
+        SC_CellForEachPinOut( pRepr, pPin, i )
+        {
+            if ( i == pRepr->n_inputs )
+            {
+                printf( "Class%4d : ",   k );
+                printf( "Cells =%3d   ", Abc_SclClassCellNum(pRepr) );
+                printf( "Ins =%2d  ",    pRepr->n_inputs );
+                printf( "Outs =%2d  ",   pRepr->n_outputs );
+            }
+            else
+                printf( "                                            " );
+            if ( pPin->func_text )
+                printf( "%-30s", pPin->func_text  );
+            printf( "    "  );
+            Kit_DsdPrintFromTruth( (unsigned *)Vec_WrdArray(pPin->vFunc), pRepr->n_inputs );
+            printf( "\n" );
+            if ( fShort )
+                continue;
+            SC_RingForEachCell( pRepr, pCell, j )
+            {
+                Abc_SclComputeParametersCell( p, pCell, Slew, &LD, &PD );
+                printf( "  %3d ",           j+1 );
+                printf( "%s",               pCell->fSkip ? "s" : " " );
+                printf( " : " );
+                printf( "%-*s  ",           nLength, pCell->pName );
+                printf( "%2d   ",           pCell->drive_strength );
+                printf( "A =%8.2f    ",     pCell->area );
+                printf( "D =%6.1f ps  ",    0.01 * Gain * LD + PD );
+                printf( "LD =%6.1f ps  ",   LD );
+                printf( "PD =%6.1f ps    ", PD );
+                printf( "C =%5.1f ff  ",    SC_LibCapFf(p, SC_CellPinCapAve(pCell)) );
+                printf( "Cm =%5.0f ff    ", SC_LibCapFf(p, SC_CellPin(pCell, pCell->n_inputs)->max_out_cap) );
+                printf( "Sm =%5.1f ps ",    SC_LibTimePs(p, SC_CellPin(pCell, pCell->n_inputs)->max_out_slew) );
+                printf( "\n" );
+            }
+            break;
+        }
+    }
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Derive GENLIB library.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Vec_Str_t * Abc_SclDeriveGenlibStr( SC_Lib * p, float Slew, float Gain, int nGatesMin, int * pnCellCount )
+{
+    char Buffer[200];
+    Vec_Str_t * vStr;
+    SC_Cell * pRepr;
+    SC_Pin * pPin;
+    int i, k, Count = 2, nClassMax = 0;
+    // find the largest number of cells in a class
+    SC_LibForEachCellClass( p, pRepr, i )
+        if ( pRepr->n_outputs == 1 )
+            nClassMax = Abc_MaxInt( nClassMax, Abc_SclClassCellNum(pRepr) );
+    // update the number
+    if ( nGatesMin && nGatesMin >= nClassMax )
+        nGatesMin = 0;
+    // mark skipped cells
+    Abc_SclMarkSkippedCells( p );
+    vStr = Vec_StrAlloc( 1000 );
+    Vec_StrPrintStr( vStr, "GATE _const0_            0.00 z=CONST0;\n" );
+    Vec_StrPrintStr( vStr, "GATE _const1_            0.00 z=CONST1;\n" );
+    SC_LibForEachCellClass( p, pRepr, i )
+    {
+        if ( pRepr->n_inputs == 0 )
+            continue;
+        if ( pRepr->n_outputs > 1 )
+            continue;
+        if ( nGatesMin && pRepr->n_inputs > 2 && Abc_SclClassCellNum(pRepr) < nGatesMin )
+            continue;
+        assert( strlen(pRepr->pName) < 200 );
+        Vec_StrPrintStr( vStr, "GATE " );
+        sprintf( Buffer, "%-16s", pRepr->pName );
+        Vec_StrPrintStr( vStr, Buffer );
+        Vec_StrPrintStr( vStr, " " );
+//        sprintf( Buffer, "%7.2f", Abc_SclComputeAreaClass(pRepr) );
+        sprintf( Buffer, "%7.2f", pRepr->area );
+        Vec_StrPrintStr( vStr, Buffer );
+        Vec_StrPrintStr( vStr, " " );
+        Vec_StrPrintStr( vStr, SC_CellPinName(pRepr, pRepr->n_inputs) );
+        Vec_StrPrintStr( vStr, "=" );
+        Vec_StrPrintStr( vStr, SC_CellPinOutFunc(pRepr, 0) ? SC_CellPinOutFunc(pRepr, 0) : "?" );
+        Vec_StrPrintStr( vStr, ";\n" );
+        SC_CellForEachPinIn( pRepr, pPin, k )
+        {
+            float Delay = Abc_SclComputeDelayClassPin( p, pRepr, k, Slew, Gain );
+            assert( Delay > 0 );
+            Vec_StrPrintStr( vStr, "         PIN " );
+            sprintf( Buffer, "%-4s", pPin->pName );
+            Vec_StrPrintStr( vStr, Buffer );
+            sprintf( Buffer, " UNKNOWN  1  999  %7.2f  0.00  %7.2f  0.00\n", Delay, Delay );
+            Vec_StrPrintStr( vStr, Buffer );
+        }
+        Count++;
+    }
+    Vec_StrPrintStr( vStr, "\n.end\n" );
+    Vec_StrPush( vStr, '\0' );
+//    printf( "GENLIB library with %d gates is produced:\n", Count );
+//    printf( "%s", Vec_StrArray(vStr) );
+    if ( pnCellCount )
+        *pnCellCount = Count;
+    return vStr;
+}
+void Abc_SclDumpGenlib( char * pFileName, SC_Lib * p, float Slew, float Gain, int nGatesMin )
+{
+    char FileName[1000];
+    int nCellCount = 0;
+    Vec_Str_t * vStr;
+    FILE * pFile;
+    if ( pFileName == NULL )
+        sprintf( FileName, "%s_s%03d_g%03d_m%d.genlib", p->pName, (int)Slew, (int)Gain, nGatesMin );
+    else
+        sprintf( FileName, "%s", pFileName );
+    pFile = fopen( FileName, "wb" );
+    if ( pFile == NULL )
+    {
+        printf( "Cannot open file \"%s\" for writing.\n", FileName );
+        return;
+    }
+    vStr = Abc_SclDeriveGenlibStr( p, Slew, Gain, nGatesMin, &nCellCount );
+    fprintf( pFile, "%s", Vec_StrArray(vStr) );
+    Vec_StrFree( vStr );
+    fclose( pFile );
+    printf( "Written GENLIB library with %d gates into file \"%s\".\n", nCellCount, FileName );
+}
+void Abc_SclDeriveGenlib( void * pScl, float Slew, float Gain, int nGatesMin )
+{
+    int nGateCount = 0;
+    Vec_Str_t * vStr = Abc_SclDeriveGenlibStr( (SC_Lib *)pScl, Slew, Gain, nGatesMin, &nGateCount );
+    Vec_Str_t * vStr2 = Vec_StrDup( vStr );
+    int RetValue = Mio_UpdateGenlib2( vStr, vStr2, ((SC_Lib *)pScl)->pName, 0 );
+    Vec_StrFree( vStr );
+    Vec_StrFree( vStr2 );
+    if ( RetValue )
+        printf( "Internally derived GENLIB library \"%s\" with %d gates.\n", ((SC_Lib *)pScl)->pName, nGateCount );
+    else
+        printf( "Reading library has filed.\n" );
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+
+ABC_NAMESPACE_IMPL_END
+

src/map/scl/sclLiberty.c

+/**CFile****************************************************************
+
+  FileName    [sclLiberty.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Standard-cell library representation.]
+
+  Synopsis    [Liberty parser.]
+
+  Author      [Alan Mishchenko, Niklas Een]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - August 24, 2012.]
+
+  Revision    [$Id: sclLiberty.c,v 1.0 2012/08/24 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "sclLib.h"
+
+ABC_NAMESPACE_IMPL_START
+
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+#define ABC_MAX_LIB_STR_LEN 5000
+
+// entry types
+typedef enum { 
+    SCL_LIBERTY_NONE = 0,        // 0:  unknown
+    SCL_LIBERTY_PROC,            // 1:  procedure :  key(head){body}
+    SCL_LIBERTY_EQUA,            // 2:  equation  :  key:head;
+    SCL_LIBERTY_LIST             // 3:  list      :  key(head) 
+} Scl_LibertyType_t;
+
+typedef struct Scl_Pair_t_ Scl_Pair_t;
+struct Scl_Pair_t_
+{
+    int             Beg;          // item beginning
+    int             End;          // item end
+};
+
+typedef struct Scl_Item_t_ Scl_Item_t;
+struct Scl_Item_t_
+{
+    int             Type;         // Scl_LibertyType_t
+    int             iLine;        // file line where the item's spec begins
+    Scl_Pair_t      Key;          // key part
+    Scl_Pair_t      Head;         // head part 
+    Scl_Pair_t      Body;         // body part
+    int             Next;         // next item in the list 
+    int             Child;        // first child item 
+};
+
+typedef struct Scl_Tree_t_ Scl_Tree_t;
+struct Scl_Tree_t_
+{
+    char *          pFileName;    // input Liberty file name
+    char *          pContents;    // file contents
+    int             nContents;    // file size
+    int             nLines;       // line counter
+    int             nItems;       // number of items
+    int             nItermAlloc;  // number of items allocated
+    Scl_Item_t *    pItems;       // the items
+    char *          pError;       // the error string
+    abctime         clkStart;     // beginning time
+};
+
+static inline Scl_Item_t *  Scl_LibertyRoot( Scl_Tree_t * p )                                      { return p->pItems;                                                 }
+static inline Scl_Item_t *  Scl_LibertyItem( Scl_Tree_t * p, int v )                               { assert( v < p->nItems ); return v < 0 ? NULL : p->pItems + v;     }
+static inline int           Scl_LibertyCompare( Scl_Tree_t * p, Scl_Pair_t Pair, char * pStr )     { return strncmp( p->pContents+Pair.Beg, pStr, Pair.End-Pair.Beg ) || ((int)strlen(pStr) != Pair.End-Pair.Beg); }
+static inline void          Scl_PrintWord( FILE * pFile, Scl_Tree_t * p, Scl_Pair_t Pair )         { char * pBeg = p->pContents+Pair.Beg, * pEnd = p->pContents+Pair.End; while ( pBeg < pEnd ) fputc( *pBeg++, pFile ); }
+static inline void          Scl_PrintSpace( FILE * pFile, int nOffset )                            { int i; for ( i = 0; i < nOffset; i++ ) fputc(' ', pFile);         }
+static inline int           Scl_LibertyItemId( Scl_Tree_t * p, Scl_Item_t * pItem )                { return pItem - p->pItems;                                         }
+
+#define Scl_ItemForEachChild( p, pItem, pChild ) \
+    for ( pChild = Scl_LibertyItem(p, pItem->Child); pChild; pChild = Scl_LibertyItem(p, pChild->Next) )
+#define Scl_ItemForEachChildName( p, pItem, pChild, pName ) \
+    for ( pChild = Scl_LibertyItem(p, pItem->Child); pChild; pChild = Scl_LibertyItem(p, pChild->Next) ) if ( Scl_LibertyCompare(p, pChild->Key, pName) ) {} else
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Prints parse tree in Liberty format.]
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Scl_LibertyParseDumpItem( FILE * pFile, Scl_Tree_t * p, Scl_Item_t * pItem, int nOffset )
+{
+    if ( pItem->Type == SCL_LIBERTY_PROC )
+    {
+        Scl_PrintSpace( pFile, nOffset );
+        Scl_PrintWord( pFile, p, pItem->Key );
+        fprintf( pFile, "(" );
+        Scl_PrintWord( pFile, p, pItem->Head );
+        fprintf( pFile, ") {\n" );
+        if ( Scl_LibertyItem(p, pItem->Child) )
+            Scl_LibertyParseDumpItem( pFile, p, Scl_LibertyItem(p, pItem->Child), nOffset + 2 );
+        Scl_PrintSpace( pFile, nOffset );
+        fprintf( pFile, "}\n" );
+    }
+    else if ( pItem->Type == SCL_LIBERTY_EQUA )
+    {
+        Scl_PrintSpace( pFile, nOffset );
+        Scl_PrintWord( pFile, p, pItem->Key );
+        fprintf( pFile, " : " );
+        Scl_PrintWord( pFile, p, pItem->Head );
+        fprintf( pFile, ";\n" );
+    }
+    else if ( pItem->Type == SCL_LIBERTY_LIST )
+    {
+        Scl_PrintSpace( pFile, nOffset );
+        Scl_PrintWord( pFile, p, pItem->Key );
+        fprintf( pFile, "(" );
+        Scl_PrintWord( pFile, p, pItem->Head );
+        fprintf( pFile, ");\n" );
+    }
+    else assert( 0 );
+    if ( Scl_LibertyItem(p, pItem->Next) )
+        Scl_LibertyParseDumpItem( pFile, p, Scl_LibertyItem(p, pItem->Next), nOffset );
+}
+int Scl_LibertyParseDump( Scl_Tree_t * p, char * pFileName )
+{
+    FILE * pFile;
+    if ( pFileName == NULL )
+        pFile = stdout;
+    else
+    {
+        pFile = fopen( pFileName, "w" );
+        if ( pFile == NULL )
+        {
+            printf( "Scl_LibertyParseDump(): The output file is unavailable (absent or open).\n" );
+            return 0;
+        }
+    }
+    Scl_LibertyParseDumpItem( pFile, p, Scl_LibertyRoot(p), 0 );
+    if ( pFile != stdout )
+        fclose( pFile );
+    return 1;
+}
+
+
+/**Function*************************************************************
+
+  Synopsis    [Gets the name to write.]
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Scl_LibertyCountItems( char * pBeg, char * pEnd )
+{
+    int Counter = 0;
+    for ( ; pBeg < pEnd; pBeg++ )
+        Counter += (*pBeg == '(' || *pBeg == ':');
+    return Counter;
+}
+// removes C-style comments
+void Scl_LibertyWipeOutComments( char * pBeg, char * pEnd )
+{
+    char * pCur, * pStart;
+    for ( pCur = pBeg; pCur < pEnd; pCur++ )
+    if ( pCur[0] == '/' && pCur[1] == '*' )
+        for ( pStart = pCur; pCur < pEnd; pCur++ )
+        if ( pCur[0] == '*' && pCur[1] == '/' )
+        {
+            for ( ; pStart < pCur + 2; pStart++ )
+            if ( *pStart != '\n' ) *pStart = ' ';
+            break;
+        }
+}
+static inline int Scl_LibertyCharIsSpace( char c )
+{
+    return c == ' ' || c == '\t' || c == '\r' || c == '\n' || c == '\\';
+}
+static inline int Scl_LibertySkipSpaces( Scl_Tree_t * p, char ** ppPos, char * pEnd, int fStopAtNewLine )
+{
+    char * pPos = *ppPos;
+    for ( ; pPos < pEnd; pPos++ )
+    {
+        if ( *pPos == '\n' )
+        {
+            p->nLines++;
+            if ( fStopAtNewLine )
+                break;
+        }        
+        if ( !Scl_LibertyCharIsSpace(*pPos) )
+            break;
+    }
+    *ppPos = pPos;
+    return pPos == pEnd;
+}
+// skips entry delimited by " :;(){}" and returns 1 if reached the end
+static inline int Scl_LibertySkipEntry( char ** ppPos, char * pEnd )
+{
+    char * pPos = *ppPos;
+    if ( *pPos == '\"' )
+    {
+        for ( pPos++; pPos < pEnd; pPos++ )
+            if ( *pPos == '\"' )
+            {
+                pPos++;
+                break;
+            }
+    }
+    else
+    {
+        for ( ; pPos < pEnd; pPos++ )
+            if ( *pPos == ' ' || *pPos == '\r' || *pPos == '\n' || *pPos == '\t' ||
+                 *pPos == ':' || *pPos == ';'  || 
+                 *pPos == '(' || *pPos == ')'  || 
+                 *pPos == '{' || *pPos == '}' )
+                break;
+    }
+    *ppPos = pPos;
+    return pPos == pEnd;
+}
+// finds the matching closing symbol
+static inline char * Scl_LibertyFindMatch( char * pPos, char * pEnd )
+{
+    int Counter = 0;
+    assert( *pPos == '(' || *pPos == '{' );
+    if ( *pPos == '(' )
+    {
+        for ( ; pPos < pEnd; pPos++ )
+        {
+            if ( *pPos == '(' )
+                Counter++;
+            if ( *pPos == ')' )
+                Counter--;
+            if ( Counter == 0 )
+                break;
+        }
+    }
+    else
+    {
+        for ( ; pPos < pEnd; pPos++ )
+        {
+            if ( *pPos == '{' )
+                Counter++;
+            if ( *pPos == '}' )
+                Counter--;
+            if ( Counter == 0 )
+                break;
+        }
+    }
+    assert( *pPos == ')' || *pPos == '}' );
+    return pPos;
+}
+// trims spaces around the head
+static inline Scl_Pair_t Scl_LibertyUpdateHead( Scl_Tree_t * p, Scl_Pair_t Head )
+{
+    Scl_Pair_t Res;
+    char * pBeg = p->pContents + Head.Beg;
+    char * pEnd = p->pContents + Head.End;
+    char * pFirstNonSpace = NULL;
+    char * pLastNonSpace = NULL;
+    char * pChar;
+    for ( pChar = pBeg; pChar < pEnd; pChar++ )
+    {
+        if ( *pChar == '\n' )
+            p->nLines++;
+        if ( Scl_LibertyCharIsSpace(*pChar) )
+            continue;
+        pLastNonSpace = pChar;
+        if ( pFirstNonSpace == NULL )
+            pFirstNonSpace = pChar;
+    }
+    if ( pFirstNonSpace == NULL || pLastNonSpace == NULL )
+        return Head;
+    assert( pFirstNonSpace && pLastNonSpace );
+    Res.Beg = pFirstNonSpace - p->pContents;
+    Res.End = pLastNonSpace  - p->pContents + 1;
+    return Res;
+}
+// returns new item
+static inline Scl_Item_t * Scl_LibertyNewItem( Scl_Tree_t * p, int Type )
+{
+    p->pItems[p->nItems].iLine = p->nLines;
+    p->pItems[p->nItems].Type  = Type;
+    p->pItems[p->nItems].Child = -1;
+    p->pItems[p->nItems].Next  = -1;
+    return p->pItems + p->nItems++;
+}
+
+
+/**Function*************************************************************
+
+  Synopsis    [Gets the name to write.]
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+char * Scl_LibertyReadString( Scl_Tree_t * p, Scl_Pair_t Pair )   
+{ 
+    static char Buffer[ABC_MAX_LIB_STR_LEN]; 
+    assert( Pair.End-Pair.Beg < ABC_MAX_LIB_STR_LEN );
+    strncpy( Buffer, p->pContents+Pair.Beg, Pair.End-Pair.Beg ); 
+    if ( Pair.Beg < Pair.End && Buffer[0] == '\"' )
+    {
+        assert( Buffer[Pair.End-Pair.Beg-1] == '\"' );
+        Buffer[Pair.End-Pair.Beg-1] = 0;
+        return Buffer + 1;
+    }
+    Buffer[Pair.End-Pair.Beg] = 0;
+    return Buffer;
+}
+int Scl_LibertyItemNum( Scl_Tree_t * p, Scl_Item_t * pRoot, char * pName )
+{
+    Scl_Item_t * pItem;
+    int Counter = 0;
+    Scl_ItemForEachChildName( p, pRoot, pItem, pName )
+        Counter++;
+    return Counter;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Returns free item.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Scl_LibertyBuildItem( Scl_Tree_t * p, char ** ppPos, char * pEnd )
+{
+    Scl_Item_t * pItem;
+    Scl_Pair_t Key, Head, Body;
+    char * pNext, * pStop;
+    Key.End = 0;
+    if ( Scl_LibertySkipSpaces( p, ppPos, pEnd, 0 ) )
+        return -2;
+    Key.Beg = *ppPos - p->pContents;
+    if ( Scl_LibertySkipEntry( ppPos, pEnd ) )
+        goto exit;
+    Key.End = *ppPos - p->pContents;
+    if ( Scl_LibertySkipSpaces( p, ppPos, pEnd, 0 ) )
+        goto exit;
+    pNext = *ppPos;
+    if ( *pNext == ':' )
+    {
+        *ppPos = pNext + 1;
+        if ( Scl_LibertySkipSpaces( p, ppPos, pEnd, 0 ) )
+            goto exit;
+        Head.Beg = *ppPos - p->pContents;
+        if ( Scl_LibertySkipEntry( ppPos, pEnd ) )
+            goto exit;
+        Head.End = *ppPos - p->pContents;
+        if ( Scl_LibertySkipSpaces( p, ppPos, pEnd, 1 ) )
+            goto exit;
+        pNext = *ppPos;
+        if ( *pNext != ';' && *pNext != '\n' )
+            goto exit;
+        *ppPos = pNext + 1;
+        // end of equation
+        pItem = Scl_LibertyNewItem( p, SCL_LIBERTY_EQUA );
+        pItem->Key  = Key;
+        pItem->Head = Scl_LibertyUpdateHead( p, Head );
+        pItem->Next = Scl_LibertyBuildItem( p, ppPos, pEnd );
+        if ( pItem->Next == -1 )
+            goto exit;
+        return Scl_LibertyItemId( p, pItem );
+    }
+    if ( *pNext == '(' )
+    {
+        pStop = Scl_LibertyFindMatch( pNext, pEnd );
+        Head.Beg = pNext - p->pContents + 1;
+        Head.End = pStop - p->pContents;
+        *ppPos = pStop + 1;
+        if ( Scl_LibertySkipSpaces( p, ppPos, pEnd, 0 ) )
+        {
+            // end of list
+            pItem = Scl_LibertyNewItem( p, SCL_LIBERTY_LIST );
+            pItem->Key  = Key;
+            pItem->Head = Scl_LibertyUpdateHead( p, Head );
+            return Scl_LibertyItemId( p, pItem );
+        }
+        pNext = *ppPos;
+        if ( *pNext == '{' ) // beginning of body
+        {
+            pStop = Scl_LibertyFindMatch( pNext, pEnd );
+            Body.Beg = pNext - p->pContents + 1;
+            Body.End = pStop - p->pContents;
+            // end of body
+            pItem = Scl_LibertyNewItem( p, SCL_LIBERTY_PROC );
+            pItem->Key  = Key;
+            pItem->Head = Scl_LibertyUpdateHead( p, Head );
+            pItem->Body = Body;
+            *ppPos = pNext + 1;
+            pItem->Child = Scl_LibertyBuildItem( p, ppPos, pStop );
+            if ( pItem->Child == -1 )
+                goto exit;
+            *ppPos = pStop + 1;
+            pItem->Next = Scl_LibertyBuildItem( p, ppPos, pEnd );
+            if ( pItem->Next == -1 )
+                goto exit;
+            return Scl_LibertyItemId( p, pItem );
+        }
+        // end of list
+        if ( *pNext == ';' )
+            *ppPos = pNext + 1;
+        pItem = Scl_LibertyNewItem( p, SCL_LIBERTY_LIST );
+        pItem->Key  = Key;
+        pItem->Head = Scl_LibertyUpdateHead( p, Head );
+        pItem->Next = Scl_LibertyBuildItem( p, ppPos, pEnd );
+        if ( pItem->Next == -1 )
+            goto exit;
+        return Scl_LibertyItemId( p, pItem );
+    }
+exit:
+    if ( p->pError == NULL )
+    {
+        p->pError = ABC_ALLOC( char, 1000 );
+        sprintf( p->pError, "File \"%s\". Line %6d. Failed to parse entry \"%s\".\n", 
+            p->pFileName, p->nLines, Scl_LibertyReadString(p, Key) );
+    }
+    return -1;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [File management.]
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Scl_LibertyFixFileName( char * pFileName )
+{
+    char * pHead;
+    for ( pHead = pFileName; *pHead; pHead++ )
+        if ( *pHead == '>' )
+            *pHead = '\\';
+}
+int Scl_LibertyFileSize( char * pFileName )
+{
+    FILE * pFile;
+    int nFileSize;
+    pFile = fopen( pFileName, "rb" );
+    if ( pFile == NULL )
+    {
+        printf( "Scl_LibertyFileSize(): The input file is unavailable (absent or open).\n" );
+        return 0;
+    }
+    fseek( pFile, 0, SEEK_END );  
+    nFileSize = ftell( pFile ); 
+    fclose( pFile );
+    return nFileSize;
+}
+char * Scl_LibertyFileContents( char * pFileName, int nContents )
+{
+    FILE * pFile = fopen( pFileName, "rb" );
+    char * pContents = ABC_ALLOC( char, nContents+1 );
+    int RetValue = fread( pContents, nContents, 1, pFile );
+    fclose( pFile );
+    pContents[nContents] = 0;
+    return pContents;
+}
+void Scl_LibertyStringDump( char * pFileName, Vec_Str_t * vStr )
+{
+    FILE * pFile = fopen( pFileName, "wb" );
+    int RetValue;
+    if ( pFile == NULL )
+    {
+        printf( "Scl_LibertyStringDump(): The output file is unavailable.\n" );
+        return;
+    }
+    RetValue = fwrite( Vec_StrArray(vStr), 1, Vec_StrSize(vStr), pFile );
+    fclose( pFile );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Starts the parsing manager.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Scl_Tree_t * Scl_LibertyStart( char * pFileName )
+{
+    Scl_Tree_t * p;
+    int RetValue;
+    // read the file into the buffer
+    Scl_LibertyFixFileName( pFileName );
+    RetValue = Scl_LibertyFileSize( pFileName );
+    if ( RetValue == 0 )
+        return NULL;
+    // start the manager
+    p = ABC_ALLOC( Scl_Tree_t, 1 );
+    memset( p, 0, sizeof(Scl_Tree_t) );
+    p->clkStart  = Abc_Clock();
+    p->nContents = RetValue;
+    p->pContents = Scl_LibertyFileContents( pFileName, p->nContents );
+    // other 
+    p->pFileName = Abc_UtilStrsav( pFileName );
+    p->nItermAlloc = 10 + Scl_LibertyCountItems( p->pContents, p->pContents+p->nContents );
+    p->pItems = ABC_CALLOC( Scl_Item_t, p->nItermAlloc );
+    p->nItems = 0;
+    p->nLines = 1;
+    return p;
+}
+void Scl_LibertyStop( Scl_Tree_t * p, int fVerbose )
+{
+    if ( fVerbose )
+    {
+        printf( "Memory = %7.2f MB. ", 1.0 * (p->nContents + p->nItermAlloc * sizeof(Scl_Item_t))/(1<<20) );
+        ABC_PRT( "Time", Abc_Clock() - p->clkStart );
+    }
+    ABC_FREE( p->pFileName );
+    ABC_FREE( p->pContents );
+    ABC_FREE( p->pItems );
+    ABC_FREE( p->pError );
+    ABC_FREE( p );
+}
+Scl_Tree_t * Scl_LibertyParse( char * pFileName, int fVerbose )
+{
+    Scl_Tree_t * p;
+    char * pPos;
+    if ( (p = Scl_LibertyStart(pFileName)) == NULL )
+        return NULL;
+    pPos = p->pContents;
+    Scl_LibertyWipeOutComments( p->pContents, p->pContents+p->nContents );
+    if ( !Scl_LibertyBuildItem( p, &pPos, p->pContents + p->nContents ) == 0 )
+    {
+        if ( p->pError ) printf( "%s", p->pError );
+        printf( "Parsing failed.  " );
+        Abc_PrintTime( 1, "Parsing time", Abc_Clock() - p->clkStart );
+    }
+    else if ( fVerbose )
+    {
+        printf( "Parsing finished successfully.  " );
+        Abc_PrintTime( 1, "Parsing time", Abc_Clock() - p->clkStart );
+    }
+    return p;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Fetching attributes.]
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Scl_LibertyReadCellIsFlop( Scl_Tree_t * p, Scl_Item_t * pCell )
+{
+    Scl_Item_t * pAttr;
+    Scl_ItemForEachChild( p, pCell, pAttr )
+        if ( !Scl_LibertyCompare(p, pAttr->Key, "ff") ||
+             !Scl_LibertyCompare(p, pAttr->Key, "latch") )
+            return 1;
+    return 0;
+}
+char * Scl_LibertyReadCellArea( Scl_Tree_t * p, Scl_Item_t * pCell )
+{
+    Scl_Item_t * pArea;
+    Scl_ItemForEachChildName( p, pCell, pArea, "area" )
+        return Scl_LibertyReadString(p, pArea->Head);
+    return 0;
+}
+char * Scl_LibertyReadPinFormula( Scl_Tree_t * p, Scl_Item_t * pPin )
+{
+    Scl_Item_t * pFunc;
+    Scl_ItemForEachChildName( p, pPin, pFunc, "function" )
+        return Scl_LibertyReadString(p, pFunc->Head);
+    return NULL;
+}
+int Scl_LibertyReadCellIsThreeState( Scl_Tree_t * p, Scl_Item_t * pCell )
+{
+    Scl_Item_t * pPin, * pItem;
+    Scl_ItemForEachChildName( p, pCell, pPin, "pin" )
+        Scl_ItemForEachChildName( p, pPin, pItem, "three_state" )
+            return 1;
+    return 0;
+}
+int Scl_LibertyReadCellOutputNum( Scl_Tree_t * p, Scl_Item_t * pCell )
+{
+    Scl_Item_t * pPin;
+    int Counter = 0;
+    Scl_ItemForEachChildName( p, pCell, pPin, "pin" )
+        if ( Scl_LibertyReadPinFormula(p, pPin) )
+            Counter++;
+    return Counter;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Parses the standard cell library in Liberty format.]
+
+  Description [Writes the resulting file in Genlib format.]
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Vec_Str_t * Scl_LibertyReadGenlibStr( Scl_Tree_t * p, int fVerbose )
+{
+    Vec_Str_t * vStr;
+    Scl_Item_t * pCell, * pOutput, * pInput;
+    char * pFormula;
+    vStr = Vec_StrAlloc( 1000 );
+    Vec_StrPrintStr( vStr, "GATE          _const0_  0.000000  z=CONST0;\n" );
+    Vec_StrPrintStr( vStr, "GATE          _const1_  0.000000  z=CONST1;\n" );
+    Scl_ItemForEachChildName( p, Scl_LibertyRoot(p), pCell, "cell" )
+    {
+        if ( Scl_LibertyReadCellIsFlop(p, pCell) )
+        {
+            if ( fVerbose )  printf( "Scl_LibertyReadGenlib() skipped sequential cell \"%s\".\n", Scl_LibertyReadString(p, pCell->Head) );
+            continue;
+        }
+        if ( Scl_LibertyReadCellIsThreeState(p, pCell) )
+        {
+            if ( fVerbose )  printf( "Scl_LibertyReadGenlib() skipped three-state cell \"%s\".\n", Scl_LibertyReadString(p, pCell->Head) );
+            continue;
+        }
+        if ( Scl_LibertyReadCellOutputNum(p, pCell) == 0 )
+        {
+            if ( fVerbose )  printf( "Scl_LibertyReadGenlib() skipped cell \"%s\" without logic function.\n", Scl_LibertyReadString(p, pCell->Head) );
+            continue;
+        }
+        // iterate through output pins
+        Scl_ItemForEachChildName( p, pCell, pOutput, "pin" )
+        {
+            if ( (pFormula = Scl_LibertyReadPinFormula(p, pOutput)) ) 
+                continue;
+            if ( !strcmp(pFormula, "0") || !strcmp(pFormula, "1") )
+            {
+                if ( fVerbose ) printf( "Scl_LibertyReadGenlib() skipped cell \"%s\" with constant formula \"%s\".\n", Scl_LibertyReadString(p, pCell->Head), pFormula );
+                break;
+            }
+            Vec_StrPrintStr( vStr, "GATE " );
+            Vec_StrPrintStr( vStr, Scl_LibertyReadString(p, pCell->Head) );
+            Vec_StrPrintStr( vStr, " " );
+            Vec_StrPrintStr( vStr, Scl_LibertyReadCellArea(p, pCell) );
+            Vec_StrPrintStr( vStr, " " );
+            Vec_StrPrintStr( vStr, Scl_LibertyReadString(p, pOutput->Head) );
+            Vec_StrPrintStr( vStr, "=" );
+            Vec_StrPrintStr( vStr, pFormula );
+            Vec_StrPrintStr( vStr, ";\n" );
+            // iterate through input pins
+            Scl_ItemForEachChildName( p, pCell, pInput, "pin" )
+            {
+                if ( Scl_LibertyReadPinFormula(p, pInput) == NULL )
+                    continue;
+                Vec_StrPrintStr( vStr, "  PIN " );
+                Vec_StrPrintStr( vStr, Scl_LibertyReadString(p, pInput->Head) );
+                Vec_StrPrintStr( vStr, " UNKNOWN  1  999  1.00  0.00  1.00  0.00\n" );
+            }
+        }
+    }
+    Vec_StrPrintStr( vStr, "\n.end\n" );
+    Vec_StrPush( vStr, '\0' );
+//    printf( "%s", Vec_StrArray(vStr) );
+    return vStr;
+}
+Vec_Str_t * Scl_LibertyParseGenlibStr( char * pFileName, int fVerbose )
+{
+    Scl_Tree_t * p;
+    Vec_Str_t * vStr;
+    p = Scl_LibertyParse( pFileName, fVerbose );
+    if ( p == NULL )
+        return NULL;
+//    Scl_LibertyRead( p, "temp_.lib" );
+    vStr = Scl_LibertyReadGenlibStr( p, fVerbose );
+    Scl_LibertyStop( p, fVerbose );
+//    Scl_LibertyStringDump( "test_genlib.lib", vStr );
+    return vStr;
+}
+
+
+/**Function*************************************************************
+
+  Synopsis    [Enabling debug output.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+//#define SCL_DEBUG
+#ifdef SCL_DEBUG
+static inline void Vec_StrPutI_( Vec_Str_t * vOut, int Val )     {  printf( "%d ",  Val );  Vec_StrPutI( vOut, Val );  }
+static inline void Vec_StrPutW_( Vec_Str_t * vOut, word Val )    {  printf( "%lu ", Val );  Vec_StrPutW( vOut, Val );  }
+static inline void Vec_StrPutF_( Vec_Str_t * vOut, float Val )   {  printf( "%f ",  Val );  Vec_StrPutF( vOut, Val );  }
+static inline void Vec_StrPutS_( Vec_Str_t * vOut, char * Val )  {  printf( "%s ",  Val );  Vec_StrPutS( vOut, Val );  }
+static inline void Vec_StrPut_( Vec_Str_t * vOut )               {  printf( "\n" ); }
+#else
+static inline void Vec_StrPutI_( Vec_Str_t * vOut, int Val )     { Vec_StrPutI( vOut, Val );  }
+static inline void Vec_StrPutW_( Vec_Str_t * vOut, word Val )    { Vec_StrPutW( vOut, Val );  }
+static inline void Vec_StrPutF_( Vec_Str_t * vOut, float Val )   { Vec_StrPutF( vOut, Val );  }
+static inline void Vec_StrPutS_( Vec_Str_t * vOut, char * Val )  { Vec_StrPutS( vOut, Val );  }
+static inline void Vec_StrPut_( Vec_Str_t * vOut )               { }
+#endif
+
+/**Function*************************************************************
+
+  Synopsis    [Parsing Liberty into internal data representation.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+char * Scl_LibertyReadDefaultWireLoad( Scl_Tree_t * p )
+{
+    Scl_Item_t * pItem;
+    Scl_ItemForEachChildName( p, Scl_LibertyRoot(p), pItem, "default_wire_load" )
+        return Scl_LibertyReadString(p, pItem->Head);
+    return "";
+}
+char * Scl_LibertyReadDefaultWireLoadSel( Scl_Tree_t * p )
+{
+    Scl_Item_t * pItem;
+    Scl_ItemForEachChildName( p, Scl_LibertyRoot(p), pItem, "default_wire_load_selection" )
+        return Scl_LibertyReadString(p, pItem->Head);
+    return "";
+}
+float Scl_LibertyReadDefaultMaxTrans( Scl_Tree_t * p )
+{
+    Scl_Item_t * pItem;
+    Scl_ItemForEachChildName( p, Scl_LibertyRoot(p), pItem, "default_max_transition" )
+        return atof(Scl_LibertyReadString(p, pItem->Head));
+    return 0;
+}
+int Scl_LibertyReadTimeUnit( Scl_Tree_t * p )
+{
+    Scl_Item_t * pItem;
+    Scl_ItemForEachChildName( p, Scl_LibertyRoot(p), pItem, "time_unit" )
+    {
+        char * pUnit = Scl_LibertyReadString(p, pItem->Head);
+        // 9=1ns, 10=100ps, 11=10ps, 12=1ps
+        if ( !strcmp(pUnit, "1ns") )
+            return 9;
+        if ( !strcmp(pUnit, "100ps") )
+            return 10;
+        if ( !strcmp(pUnit, "10ps") )
+            return 11;
+        if ( !strcmp(pUnit, "1ps") )
+            return 12;
+        break;
+    }
+    printf( "Libery parser cannot read \"time_unit\".  Assuming   time_unit : \"1ns\".\n" );
+    return 9;
+}
+void Scl_LibertyReadLoadUnit( Scl_Tree_t * p, Vec_Str_t * vOut )
+{
+    Scl_Item_t * pItem;
+    Scl_ItemForEachChildName( p, Scl_LibertyRoot(p), pItem, "capacitive_load_unit" )
+    {
+        // expecting (1.00,ff) or (1, pf) ... 12 or 15 for 'pf' or 'ff'
+        char * pHead   = Scl_LibertyReadString(p, pItem->Head);
+        float First    = atof(strtok(pHead, " \t\n\r\\\","));
+        char * pSecond = strtok(NULL, " \t\n\r\\\",");
+        Vec_StrPutF_( vOut, First );
+        if ( pSecond && !strcmp(pSecond, "pf") )
+            Vec_StrPutI_( vOut, 12 );
+        else if ( pSecond && !strcmp(pSecond, "ff") )
+            Vec_StrPutI_( vOut, 15 );
+        else break;
+        return;
+    }
+    printf( "Libery parser cannot read \"capacitive_load_unit\". Assuming   capacitive_load_unit(1, pf).\n" );
+    Vec_StrPutF_( vOut, 1.0 );
+    Vec_StrPutI_( vOut, 12 );
+}
+void Scl_LibertyReadWireLoad( Scl_Tree_t * p, Vec_Str_t * vOut )
+{
+    Scl_Item_t * pItem, * pChild;
+    Vec_StrPutI_( vOut, Scl_LibertyItemNum(p, Scl_LibertyRoot(p), "wire_load") );
+    Vec_StrPut_( vOut );
+    Scl_ItemForEachChildName( p, Scl_LibertyRoot(p), pItem, "wire_load" )
+    {
+        Vec_StrPutS_( vOut, Scl_LibertyReadString(p, pItem->Head) );
+        Scl_ItemForEachChildName( p, pItem, pChild, "resistance" )
+            Vec_StrPutF_( vOut, atof(Scl_LibertyReadString(p, pChild->Head)) );
+        Scl_ItemForEachChildName( p, pItem, pChild, "capacitance" )
+            Vec_StrPutF_( vOut, atof(Scl_LibertyReadString(p, pChild->Head)) );
+        Vec_StrPut_( vOut );
+        Vec_StrPutI_( vOut, Scl_LibertyItemNum(p, pItem, "fanout_length") );
+        Vec_StrPut_( vOut );
+        Scl_ItemForEachChildName( p, pItem, pChild, "fanout_length" )
+        {
+            char * pHead  = Scl_LibertyReadString(p, pChild->Head);
+            int    First  = atoi( strtok(pHead, " ,") );
+            float  Second = atof( strtok(NULL, " ") );
+            Vec_StrPutI_( vOut, First );
+            Vec_StrPutF_( vOut, Second );
+            Vec_StrPut_( vOut );
+        }
+        Vec_StrPut_( vOut );
+    }
+    Vec_StrPut_( vOut );
+}
+void Scl_LibertyReadWireLoadSelect( Scl_Tree_t * p, Vec_Str_t * vOut )
+{
+    Scl_Item_t * pItem, * pChild;
+    Vec_StrPutI_( vOut, Scl_LibertyItemNum(p, Scl_LibertyRoot(p), "wire_load_selection") );
+    Vec_StrPut_( vOut );
+    Scl_ItemForEachChildName( p, Scl_LibertyRoot(p), pItem, "wire_load_selection" )
+    {
+        Vec_StrPutS_( vOut, Scl_LibertyReadString(p, pItem->Head) );
+        Vec_StrPut_( vOut );
+        Vec_StrPutI_( vOut, Scl_LibertyItemNum(p, pItem, "wire_load_from_area") );
+        Vec_StrPut_( vOut );
+        Scl_ItemForEachChildName( p, pItem, pChild, "wire_load_from_area" )
+        {
+            char * pHead  = Scl_LibertyReadString(p, pChild->Head);
+            float  First  = atof( strtok(pHead, " ,") );
+            float  Second = atof( strtok(NULL, " ,") );
+            char * pThird = strtok(NULL, " ");
+            Vec_StrPutF_( vOut, First );
+            Vec_StrPutF_( vOut, Second );
+            Vec_StrPutS_( vOut, pThird );
+            Vec_StrPut_( vOut );
+        }
+        Vec_StrPut_( vOut );
+    }
+    Vec_StrPut_( vOut );
+}
+int Scl_LibertyReadDeriveStrength( Scl_Tree_t * p, Scl_Item_t * pCell )
+{
+    Scl_Item_t * pItem;
+    Scl_ItemForEachChildName( p, pCell, pItem, "drive_strength" )
+        return atoi(Scl_LibertyReadString(p, pItem->Head));
+    return 0;
+}
+int Scl_LibertyReadPinDirection( Scl_Tree_t * p, Scl_Item_t * pPin )
+{
+    Scl_Item_t * pItem;
+    Scl_ItemForEachChildName( p, pPin, pItem, "direction" )
+    {
+        char * pToken = Scl_LibertyReadString(p, pItem->Head);
+        if ( !strcmp(pToken, "input") )
+            return 0;
+        if ( !strcmp(pToken, "output") )
+            return 1;
+        break;
+    }
+    return -1;
+}
+float Scl_LibertyReadPinCap( Scl_Tree_t * p, Scl_Item_t * pPin, char * pName )
+{
+    Scl_Item_t * pItem;
+    Scl_ItemForEachChildName( p, pPin, pItem, pName )
+        return atof(Scl_LibertyReadString(p, pItem->Head));
+    return 0;
+}
+Scl_Item_t * Scl_LibertyReadPinTiming( Scl_Tree_t * p, Scl_Item_t * pPinOut, char * pNameIn )
+{
+    Scl_Item_t * pTiming, * pPinIn;
+    Scl_ItemForEachChildName( p, pPinOut, pTiming, "timing" )
+        Scl_ItemForEachChildName( p, pTiming, pPinIn, "related_pin" )
+            if ( !strcmp(Scl_LibertyReadString(p, pPinIn->Head), pNameIn) )
+                return pTiming;
+    return NULL;
+}
+int Scl_LibertyReadTimingSense( Scl_Tree_t * p, Scl_Item_t * pPin )
+{
+    Scl_Item_t * pItem;
+    Scl_ItemForEachChildName( p, pPin, pItem, "timing_sense" )
+    {
+        char * pToken = Scl_LibertyReadString(p, pItem->Head);
+        if ( !strcmp(pToken, "positive_unate") )
+            return sc_ts_Pos;
+        if ( !strcmp(pToken, "negative_unate") )
+            return sc_ts_Neg;
+        if ( !strcmp(pToken, "non_unate") )
+            return sc_ts_Non;
+        break;
+    }
+    return sc_ts_Non;
+}
+
+Vec_Flt_t * Scl_LibertyReadFloatVec( char * pName )
+{
+    char * pToken;
+    Vec_Flt_t * vValues = Vec_FltAlloc( 100 );
+    for ( pToken = strtok(pName, " \t\n\r\\\","); pToken; pToken = strtok(NULL, " \t\n\r\\\",") )
+        Vec_FltPush( vValues, atof(pToken) );
+    return vValues;
+}
+void Scl_LibertyReadTable( Scl_Tree_t * p, Vec_Str_t * vOut, Scl_Item_t * pTiming, char * pName, Vec_Ptr_t * vTemples )
+{
+    Vec_Flt_t * vIndex1 = NULL;
+    Vec_Flt_t * vIndex2 = NULL;
+    Vec_Flt_t * vValues = NULL;
+    Vec_Flt_t * vInd1, * vInd2;
+    Scl_Item_t * pItem, * pTable = NULL;
+    char * pThis, * pTempl = NULL;
+    int iPlace, i;
+    float Entry;
+    // find the table
+    Scl_ItemForEachChildName( p, pTiming, pTable, pName )
+        break;
+    if ( pTable == NULL )
+        { printf( "Table cannot be found\n" ); return; }
+    // find the template
+    pTempl = Scl_LibertyReadString(p, pTable->Head);
+    if ( pTempl == NULL || pTempl[0] == 0 )
+    {
+        // read the numbers
+        Scl_ItemForEachChild( p, pTable, pItem )
+        {
+            if ( !Scl_LibertyCompare(p, pItem->Key, "index_1") )
+                assert(vIndex1 == NULL), vIndex1 = Scl_LibertyReadFloatVec( Scl_LibertyReadString(p, pItem->Head) );
+            else if ( !Scl_LibertyCompare(p, pItem->Key, "index_2") )
+                assert(vIndex2 == NULL), vIndex2 = Scl_LibertyReadFloatVec( Scl_LibertyReadString(p, pItem->Head) );
+            else if ( !Scl_LibertyCompare(p, pItem->Key, "values") )
+                assert(vValues == NULL), vValues = Scl_LibertyReadFloatVec( Scl_LibertyReadString(p, pItem->Head) );
+        }
+        if ( vIndex1 == NULL || vIndex2 == NULL || vValues == NULL )
+            { printf( "Incomplete table specification\n" ); return; }
+        // dump the table
+        vInd1 = vIndex1;
+        vInd2 = vIndex2;
+        // write entries
+        Vec_StrPutI_( vOut, Vec_FltSize(vInd1) );
+        Vec_FltForEachEntry( vInd1, Entry, i )
+            Vec_StrPutF_( vOut, Entry );
+        Vec_StrPut_( vOut );
+        // write entries
+        Vec_StrPutI_( vOut, Vec_FltSize(vInd2) );
+        Vec_FltForEachEntry( vInd2, Entry, i )
+            Vec_StrPutF_( vOut, Entry );
+        Vec_StrPut_( vOut );
+        Vec_StrPut_( vOut );
+        // write entries
+        assert( Vec_FltSize(vInd1) * Vec_FltSize(vInd2) == Vec_FltSize(vValues) );
+        Vec_FltForEachEntry( vValues, Entry, i )
+        {
+            Vec_StrPutF_( vOut, Entry );
+            if ( i % Vec_FltSize(vInd2) == Vec_FltSize(vInd2)-1 )
+                Vec_StrPut_( vOut );
+        }
+    }
+    else
+    {
+        // fetch the template
+        iPlace = -1;
+        Vec_PtrForEachEntry( char *, vTemples, pThis, i )
+            if ( i % 4 == 0 && !strcmp(pTempl, pThis) )
+            {  
+                iPlace = i;
+                break;
+            }
+        if ( iPlace == -1 )
+            { printf( "Template cannot be found in the template library\n" ); return; }
+        // read the numbers
+        Scl_ItemForEachChild( p, pTable, pItem )
+        {
+            if ( !Scl_LibertyCompare(p, pItem->Key, "index_1") )
+                assert(vIndex1 == NULL), vIndex1 = Scl_LibertyReadFloatVec( Scl_LibertyReadString(p, pItem->Head) );
+            else if ( !Scl_LibertyCompare(p, pItem->Key, "index_2") )
+                assert(vIndex2 == NULL), vIndex2 = Scl_LibertyReadFloatVec( Scl_LibertyReadString(p, pItem->Head) );
+            else if ( !Scl_LibertyCompare(p, pItem->Key, "values") )
+                assert(vValues == NULL), vValues = Scl_LibertyReadFloatVec( Scl_LibertyReadString(p, pItem->Head) );
+        }
+        // check the template style
+        vInd1 = (Vec_Flt_t *)Vec_PtrEntry( vTemples, iPlace + 2 ); // slew
+        vInd2 = (Vec_Flt_t *)Vec_PtrEntry( vTemples, iPlace + 3 ); // load
+        if ( Vec_PtrEntry(vTemples, iPlace + 1) == NULL ) // normal order (vIndex1 is slew; vIndex2 is load)
+        {
+            assert( !vIndex1 || Vec_FltSize(vIndex1) == Vec_FltSize(vInd1) );
+            assert( !vIndex2 || Vec_FltSize(vIndex2) == Vec_FltSize(vInd2) );
+            vInd1 = vIndex1 ? vIndex1 : vInd1;
+            vInd2 = vIndex2 ? vIndex2 : vInd2;
+            // write entries
+            Vec_StrPutI_( vOut, Vec_FltSize(vInd1) );
+            Vec_FltForEachEntry( vInd1, Entry, i )
+                Vec_StrPutF_( vOut, Entry );
+            Vec_StrPut_( vOut );
+            // write entries
+            Vec_StrPutI_( vOut, Vec_FltSize(vInd2) );
+            Vec_FltForEachEntry( vInd2, Entry, i )
+                Vec_StrPutF_( vOut, Entry );
+            Vec_StrPut_( vOut );
+            Vec_StrPut_( vOut );
+            // write entries
+            assert( Vec_FltSize(vInd1) * Vec_FltSize(vInd2) == Vec_FltSize(vValues) );
+            Vec_FltForEachEntry( vValues, Entry, i )
+            {
+                Vec_StrPutF_( vOut, Entry );
+                if ( i % Vec_FltSize(vInd2) == Vec_FltSize(vInd2)-1 )
+                    Vec_StrPut_( vOut );
+            }
+        }
+        else  // reverse order (vIndex2 is slew; vIndex1 is load)
+        {
+            assert( !vIndex2 || Vec_FltSize(vIndex2) == Vec_FltSize(vInd1) );
+            assert( !vIndex1 || Vec_FltSize(vIndex1) == Vec_FltSize(vInd2) );
+            vInd1 = vIndex2 ? vIndex2 : vInd1;
+            vInd2 = vIndex1 ? vIndex1 : vInd2;
+            // write entries
+            Vec_StrPutI_( vOut, Vec_FltSize(vInd1) );
+            Vec_FltForEachEntry( vInd1, Entry, i )
+                Vec_StrPutF_( vOut, Entry );
+            Vec_StrPut_( vOut );
+            // write entries
+            Vec_StrPutI_( vOut, Vec_FltSize(vInd2) );
+            Vec_FltForEachEntry( vInd2, Entry, i )
+                Vec_StrPutF_( vOut, Entry );
+            Vec_StrPut_( vOut );
+            Vec_StrPut_( vOut );
+            // write entries -- transpose
+            assert( Vec_FltSize(vInd1) * Vec_FltSize(vInd2) == Vec_FltSize(vValues) );
+            Vec_FltForEachEntry( vValues, Entry, i )
+            {
+                int x = i % Vec_FltSize(vInd2);
+                int y = i / Vec_FltSize(vInd2);
+                Entry = Vec_FltEntry( vValues, x * Vec_FltSize(vInd1) + y );
+                Vec_StrPutF_( vOut, Entry );
+                if ( i % Vec_FltSize(vInd2) == Vec_FltSize(vInd2)-1 )
+                    Vec_StrPut_( vOut );
+            }
+        }
+    }
+    Vec_StrPut_( vOut );
+    for ( i = 0; i < 3; i++ ) 
+        Vec_StrPutF_( vOut, 0 );
+    for ( i = 0; i < 4; i++ ) 
+        Vec_StrPutF_( vOut, 0 );
+    for ( i = 0; i < 6; i++ ) 
+        Vec_StrPutF_( vOut, 0 );
+    Vec_FltFreeP( &vIndex1 );
+    Vec_FltFreeP( &vIndex2 );
+    Vec_FltFreeP( &vValues );
+    Vec_StrPut_( vOut );
+    Vec_StrPut_( vOut );
+}
+void Scl_LibertyPrintTemplates( Vec_Ptr_t * vRes )
+{
+    Vec_Flt_t * vArray; int i;
+    assert( Vec_PtrSize(vRes) % 4 == 0 );
+    printf( "There are %d slew/load templates\n", Vec_PtrSize(vRes) % 4 );
+    Vec_PtrForEachEntry( Vec_Flt_t *, vRes, vArray, i )
+    {
+        if ( i % 4 == 0 )
+            printf( "%s\n", (char *)vArray );
+        else if ( i % 4 == 1 )
+            printf( "%d\n", (int)(vArray != NULL) );
+        else if ( i % 4 == 2 || i % 4 == 3 )
+            Vec_FltPrint( vArray );
+        if ( i % 4 == 3 )
+            printf( "\n" );
+    }
+}
+Vec_Ptr_t * Scl_LibertyReadTemplates( Scl_Tree_t * p )
+{
+    Vec_Ptr_t * vRes = NULL;
+    Vec_Flt_t * vIndex1, * vIndex2;
+    Scl_Item_t * pTempl, * pItem;
+    char * pVar1, * pVar2;
+    int fFlag0, fFlag1;
+    vRes = Vec_PtrAlloc( 100 );
+    Scl_ItemForEachChildName( p, Scl_LibertyRoot(p), pTempl, "lu_table_template" )
+    {
+        pVar1 = pVar2 = NULL;
+        vIndex1 = vIndex2 = NULL;
+        Scl_ItemForEachChild( p, pTempl, pItem )
+        {
+            if ( !Scl_LibertyCompare(p, pItem->Key, "index_1") )
+                assert(vIndex1 == NULL), vIndex1 = Scl_LibertyReadFloatVec( Scl_LibertyReadString(p, pItem->Head) );
+            else if ( !Scl_LibertyCompare(p, pItem->Key, "index_2") )
+                assert(vIndex2 == NULL), vIndex2 = Scl_LibertyReadFloatVec( Scl_LibertyReadString(p, pItem->Head) );
+            else if ( !Scl_LibertyCompare(p, pItem->Key, "variable_1") )
+                assert(pVar1 == NULL), pVar1 = Abc_UtilStrsav( Scl_LibertyReadString(p, pItem->Head) );
+            else if ( !Scl_LibertyCompare(p, pItem->Key, "variable_2") )
+                assert(pVar2 == NULL), pVar2 = Abc_UtilStrsav( Scl_LibertyReadString(p, pItem->Head) );
+        }
+        if ( pVar1 == NULL || pVar2 == NULL )
+        {
+            ABC_FREE( pVar1 );  
+            ABC_FREE( pVar2 );
+            Vec_FltFreeP( &vIndex1 );
+            Vec_FltFreeP( &vIndex2 );
+            continue;
+        }
+        assert( pVar1 != NULL && pVar2 != NULL );
+        fFlag0 = (!strcmp(pVar1, "input_net_transition") && !strcmp(pVar2, "total_output_net_capacitance"));
+        fFlag1 = (!strcmp(pVar2, "input_net_transition") && !strcmp(pVar1, "total_output_net_capacitance"));
+        ABC_FREE( pVar1 );  
+        ABC_FREE( pVar2 );
+        if ( !fFlag0 && !fFlag1 )
+        {
+            Vec_FltFreeP( &vIndex1 );
+            Vec_FltFreeP( &vIndex2 );
+            continue;
+        }
+        Vec_PtrPush( vRes, Abc_UtilStrsav( Scl_LibertyReadString(p, pTempl->Head) ) );
+        Vec_PtrPush( vRes, fFlag0 ? NULL : (void *)(ABC_PTRINT_T)1 );
+        Vec_PtrPush( vRes, fFlag0 ? vIndex1 : vIndex2 );
+        Vec_PtrPush( vRes, fFlag0 ? vIndex2 : vIndex1 );
+    }
+    if ( Vec_PtrSize(vRes) == 0 )
+        Abc_Print( 0, "Templates are not defined.\n" );
+    // print templates
+//    printf( "Found %d templates\n", Vec_PtrSize(vRes)/4 );
+//    Scl_LibertyPrintTemplates( vRes );
+    return vRes;
+}
+Vec_Str_t * Scl_LibertyReadSclStr( Scl_Tree_t * p, int fVerbose, int fVeryVerbose )
+{
+    Vec_Str_t * vOut;
+    Vec_Ptr_t * vNameIns, * vTemples = NULL;
+    Scl_Item_t * pCell, * pPin, * pTiming;
+    Vec_Wrd_t * vTruth;
+    char * pFormula, * pName;
+    int i, Counter, nOutputs, nCells;
+    int nSkipped[3] = {0};
+
+    // read delay-table templates
+    vTemples = Scl_LibertyReadTemplates( p );
+
+    // start the library
+    vOut = Vec_StrAlloc( 10000 );
+    Vec_StrPutI_( vOut, ABC_SCL_CUR_VERSION );
+
+    // top level information
+    Vec_StrPut_( vOut );
+    Vec_StrPutS_( vOut, Scl_LibertyReadString(p, Scl_LibertyRoot(p)->Head) );
+    Vec_StrPutS_( vOut, Scl_LibertyReadDefaultWireLoad(p) );
+    Vec_StrPutS_( vOut, Scl_LibertyReadDefaultWireLoadSel(p) );
+    Vec_StrPutF_( vOut, Scl_LibertyReadDefaultMaxTrans(p) );
+    Vec_StrPutI_( vOut, Scl_LibertyReadTimeUnit(p) );
+    Scl_LibertyReadLoadUnit( p, vOut );
+    Vec_StrPut_( vOut );
+    Vec_StrPut_( vOut );
+
+    // read wire loads
+    Scl_LibertyReadWireLoad( p, vOut );
+    Scl_LibertyReadWireLoadSelect( p, vOut );
+
+    // count cells
+    nCells = 0;
+    Scl_ItemForEachChildName( p, Scl_LibertyRoot(p), pCell, "cell" )
+    {
+        if ( Scl_LibertyReadCellIsFlop(p, pCell) )
+        {
+            if ( fVeryVerbose )  printf( "Scl_LibertyReadGenlib() skipped sequential cell \"%s\".\n", Scl_LibertyReadString(p, pCell->Head) );
+            nSkipped[0]++;
+            continue;
+        }
+        if ( Scl_LibertyReadCellIsThreeState(p, pCell) )
+        {
+            if ( fVeryVerbose )  printf( "Scl_LibertyReadGenlib() skipped three-state cell \"%s\".\n", Scl_LibertyReadString(p, pCell->Head) );
+            nSkipped[1]++;
+            continue;
+        }
+        if ( (Counter = Scl_LibertyReadCellOutputNum(p, pCell)) == 0 )
+        {
+            if ( fVeryVerbose )  printf( "Scl_LibertyReadGenlib() skipped cell \"%s\" without logic function.\n", Scl_LibertyReadString(p, pCell->Head) );
+            nSkipped[2]++;
+            continue;
+        }
+        nCells++;
+    }
+    // read cells
+    Vec_StrPutI_( vOut, nCells );
+    Vec_StrPut_( vOut );
+    Vec_StrPut_( vOut );
+    Scl_ItemForEachChildName( p, Scl_LibertyRoot(p), pCell, "cell" )
+    {
+        if ( Scl_LibertyReadCellIsFlop(p, pCell) )
+            continue;
+        if ( Scl_LibertyReadCellIsThreeState(p, pCell) )
+            continue;
+        if ( (Counter = Scl_LibertyReadCellOutputNum(p, pCell)) == 0 )
+            continue;
+        // top level information
+        Vec_StrPutS_( vOut, Scl_LibertyReadString(p, pCell->Head) );
+        Vec_StrPutF_( vOut, atof(Scl_LibertyReadCellArea(p, pCell)) );
+        Vec_StrPutI_( vOut, Scl_LibertyReadDeriveStrength(p, pCell) );
+        // pin count
+        nOutputs = Scl_LibertyReadCellOutputNum( p, pCell );
+        Vec_StrPutI_( vOut, Scl_LibertyItemNum(p, pCell, "pin") - nOutputs );
+        Vec_StrPutI_( vOut, nOutputs );
+        Vec_StrPut_( vOut );
+        Vec_StrPut_( vOut );
+
+        // input pins
+        vNameIns = Vec_PtrAlloc( 16 );
+        Scl_ItemForEachChildName( p, pCell, pPin, "pin" )
+        {
+            float CapOne, CapRise, CapFall;
+            if ( Scl_LibertyReadPinFormula(p, pPin) != NULL ) // skip output pin
+                continue;
+            assert( Scl_LibertyReadPinDirection(p, pPin) == 0 );
+            pName = Scl_LibertyReadString(p, pPin->Head);
+            Vec_PtrPush( vNameIns, Abc_UtilStrsav(pName) );
+            Vec_StrPutS_( vOut, pName );
+            CapOne  = Scl_LibertyReadPinCap( p, pPin, "capacitance" );
+            CapRise = Scl_LibertyReadPinCap( p, pPin, "rise_capacitance" );
+            CapFall = Scl_LibertyReadPinCap( p, pPin, "fall_capacitance" );
+            if ( CapRise == 0 )
+                CapRise = CapOne;
+            if ( CapFall == 0 )
+                CapFall = CapOne;
+            Vec_StrPutF_( vOut, CapRise );
+            Vec_StrPutF_( vOut, CapFall );
+            Vec_StrPut_( vOut );
+        }
+        Vec_StrPut_( vOut );
+        // output pins
+        Scl_ItemForEachChildName( p, pCell, pPin, "pin" )
+        {
+            extern Vec_Wrd_t * Mio_ParseFormulaTruth( char * pFormInit, char ** ppVarNames, int nVars );
+            if ( !Scl_LibertyReadPinFormula(p, pPin) ) // skip input pin
+                continue;
+            assert( Scl_LibertyReadPinDirection(p, pPin) == 1 );
+            pName = Scl_LibertyReadString(p, pPin->Head);
+            Vec_StrPutS_( vOut, pName );
+            Vec_StrPutF_( vOut, Scl_LibertyReadPinCap( p, pPin, "max_capacitance" ) );
+            Vec_StrPutF_( vOut, Scl_LibertyReadPinCap( p, pPin, "max_transition" ) );
+            Vec_StrPutI_( vOut, Vec_PtrSize(vNameIns) );
+            pFormula = Scl_LibertyReadPinFormula(p, pPin);
+            Vec_StrPutS_( vOut, pFormula );
+            // write truth table
+            vTruth = Mio_ParseFormulaTruth( pFormula, (char **)Vec_PtrArray(vNameIns), Vec_PtrSize(vNameIns) );
+            for ( i = 0; i < Abc_Truth6WordNum(Vec_PtrSize(vNameIns)); i++ )
+                Vec_StrPutW_( vOut, Vec_WrdEntry(vTruth, i) );
+            Vec_WrdFree( vTruth );
+            Vec_StrPut_( vOut );
+            Vec_StrPut_( vOut );
+
+            // write the delay tables
+            Vec_PtrForEachEntry( char *, vNameIns, pName, i )
+            {
+                pTiming = Scl_LibertyReadPinTiming( p, pPin, pName );
+                Vec_StrPutS_( vOut, pName );
+                Vec_StrPutI_( vOut, (int)(pTiming != NULL) );
+                if ( pTiming == NULL ) // output does not depend on input
+                    continue;
+                Vec_StrPutI_( vOut, Scl_LibertyReadTimingSense(p, pTiming) );
+                Vec_StrPut_( vOut );
+                Vec_StrPut_( vOut );
+                Scl_LibertyReadTable( p, vOut, pTiming, "cell_rise",       vTemples );
+                Scl_LibertyReadTable( p, vOut, pTiming, "cell_fall",       vTemples );
+                Scl_LibertyReadTable( p, vOut, pTiming, "rise_transition", vTemples );
+                Scl_LibertyReadTable( p, vOut, pTiming, "fall_transition", vTemples );
+            }
+        }
+        Vec_StrPut_( vOut );
+        Vec_PtrFreeFree( vNameIns );
+    }
+    // free templates
+    if ( vTemples )
+    {
+        Vec_Flt_t * vArray;
+        assert( Vec_PtrSize(vTemples) % 4 == 0 );
+        Vec_PtrForEachEntry( Vec_Flt_t *, vTemples, vArray, i )
+            if ( i % 4 == 0 )
+                ABC_FREE( vArray );
+            else if ( i % 4 == 2 || i % 4 == 3 )
+                Vec_FltFree( vArray );
+        Vec_PtrFree( vTemples );
+    }
+    if ( fVerbose )
+    {
+        printf( "Library \"%s\" from \"%s\" has %d cells ", 
+            Scl_LibertyReadString(p, Scl_LibertyRoot(p)->Head), p->pFileName, nCells );
+        printf( "(%d skipped: %d seq; %d tri-state; %d no func).  ", 
+            nSkipped[0]+nSkipped[1]+nSkipped[2], nSkipped[0], nSkipped[1], nSkipped[2] );
+        Abc_PrintTime( 1, "Time", Abc_Clock() - p->clkStart );
+    }
+    return vOut;
+}
+SC_Lib * Abc_SclReadLiberty( char * pFileName, int fVerbose, int fVeryVerbose )
+{
+    SC_Lib * pLib;
+    Scl_Tree_t * p;
+    Vec_Str_t * vStr;
+    p = Scl_LibertyParse( pFileName, fVeryVerbose );
+    if ( p == NULL )
+        return NULL;
+//    Scl_LibertyParseDump( p, "temp_.lib" );
+    // collect relevant data
+    vStr = Scl_LibertyReadSclStr( p, fVerbose, fVeryVerbose );
+    Scl_LibertyStop( p, fVeryVerbose );
+    // construct SCL data-structure
+    pLib = Abc_SclReadFromStr( vStr );
+    pLib->pFileName = Abc_UtilStrsav( pFileName );
+    Vec_StrFree( vStr );
+    return pLib;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Experiments with Liberty parsing.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Scl_LibertyTest()
+{
+    char * pFileName = "bwrc.lib";
+    int fVerbose = 1;
+    int fVeryVerbose = 0;
+    Scl_Tree_t * p;
+    Vec_Str_t * vStr;
+//    return;
+    p = Scl_LibertyParse( pFileName, fVeryVerbose );
+    if ( p == NULL )
+        return;
+//    Scl_LibertyParseDump( p, "temp_.lib" );
+    vStr = Scl_LibertyReadSclStr( p, fVerbose, fVeryVerbose );
+    Scl_LibertyStringDump( "test_scl.lib", vStr );
+    Vec_StrFree( vStr );
+    Scl_LibertyStop( p, fVerbose );
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+
+ABC_NAMESPACE_IMPL_END
+

src/misc/extra/extraUtilFile.c

@@ -551,7 +551,7 @@ void Extra_PrintHex( FILE * pFile, unsigned * pTruth, int nVars )
     // write the number into the file
     fprintf( pFile, "0x" );
     nMints  = (1 << nVars);
-    nDigits = nMints / 4;
+    nDigits = nMints / 4 + ((nMints % 4) > 0);
     for ( k = nDigits - 1; k >= 0; k-- )
     {
         Digit = ((pTruth[k/8] >> (k * 4)) & 15);
@@ -569,7 +569,7 @@ void Extra_PrintHexReverse( FILE * pFile, unsigned * pTruth, int nVars )
     // write the number into the file
     fprintf( pFile, "0x" );
     nMints  = (1 << nVars);
-    nDigits = nMints / 4;
+    nDigits = nMints / 4 + ((nMints % 4) > 0);
     for ( k = 0; k < nDigits; k++ )
     {
         Digit = ((pTruth[k/8] >> (k * 4)) & 15);

src/misc/vec/vecFlt.h

@@ -664,6 +664,26 @@ static inline float Vec_FltFindMin( Vec_Flt_t * p )
 
 /**Function*************************************************************
 
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+static inline void Vec_FltPrint( Vec_Flt_t * vVec )
+{
+    int i; float Entry;
+    printf( "Vector has %d entries: {", Vec_FltSize(vVec) );
+    Vec_FltForEachEntry( vVec, Entry, i )
+        printf( " %f", Entry );
+    printf( " }\n" );
+}
+
+/**Function*************************************************************
+
   Synopsis    [Comparison procedure for two floats.]
 
   Description []