Experiments with truth tables.

src/base/abci/abc.c

@@ -135,6 +135,7 @@ static int Abc_CommandMerge                  ( Abc_Frame_t * pAbc, int argc, cha
 static int Abc_CommandTestDec                ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandTestNpn                ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandTestRPO                ( Abc_Frame_t * pAbc, int argc, char ** argv );
+static int Abc_CommandTestTruth              ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandRunEco                 ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandRunGen                 ( Abc_Frame_t * pAbc, int argc, char ** argv );
 static int Abc_CommandRunSim                 ( Abc_Frame_t * pAbc, int argc, char ** argv );
@@ -838,6 +839,7 @@ void Abc_Init( Abc_Frame_t * pAbc )
     Cmd_CommandAdd( pAbc, "Synthesis",    "testdec",       Abc_CommandTestDec,          0 );
     Cmd_CommandAdd( pAbc, "Synthesis",    "testnpn",       Abc_CommandTestNpn,          0 );
     Cmd_CommandAdd( pAbc, "LogiCS",       "testrpo",       Abc_CommandTestRPO,          0 );
+    Cmd_CommandAdd( pAbc, "Synthesis",    "testtruth",     Abc_CommandTestTruth,        0 );
     Cmd_CommandAdd( pAbc, "Synthesis",    "runeco",        Abc_CommandRunEco,           0 );
     Cmd_CommandAdd( pAbc, "Synthesis",    "rungen",        Abc_CommandRunGen,           0 );
     Cmd_CommandAdd( pAbc, "Synthesis",    "runsim",        Abc_CommandRunSim,           0 );
@@ -6920,6 +6922,53 @@ usage:
     return 1;
 }
 
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Abc_CommandTestTruth( Abc_Frame_t * pAbc, int argc, char ** argv )
+{
+    extern int * Kit_TruthTest( char * pFileName );
+    int * pResult = NULL;
+    int c, fVerbose = 0;
+    Extra_UtilGetoptReset();
+    while ( ( c = Extra_UtilGetopt( argc, argv, "vh" ) ) != EOF )
+    {
+        switch ( c )
+        {
+        case 'v':
+            fVerbose ^= 1;
+            break;
+        case 'h':
+            goto usage;
+        default:
+            goto usage;
+        }
+    }
+    if ( argc != globalUtilOptind + 1 )
+    {
+        Abc_Print( 1,"Input file is not given.\n" );
+        return 0;
+    }
+    pResult = Kit_TruthTest( argv[globalUtilOptind] );
+    ABC_FREE( pResult );
+    return 0;
+
+usage:
+    Abc_Print( -2, "usage: testtruth [-vh] <file>\n" );
+    Abc_Print( -2, "\t           printing truth table stats\n" );
+    Abc_Print( -2, "\t-v       : toggle verbose printout [default = %s]\n", fVerbose? "yes": "no" );
+    Abc_Print( -2, "\t-h       : print the command usage\n");
+    return 1;
+}
+
 /**Function*************************************************************
 
   Synopsis    []

src/base/abci/abcDec.c

@@ -428,6 +428,36 @@ Abc_TtStore_t * Abc_TtStoreLoad( char * pFileName, int nVarNum )
     return p;
 }
 
+/**Function*************************************************************
+
+  Synopsis    [Read truth tables from input file and write them into output file.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Abc_TtStoreLoadSave( char * pFileName )
+{ 
+    Abc_TtStore_t * p;
+    char * pFileInput  = pFileName;
+    char * pFileOutput = Extra_FileNameGenericAppend(pFileName, "_binary.data");
+
+    // read info from file
+    p = Abc_TtStoreLoad( pFileInput, -1 );
+    if ( p == NULL )
+        return;
+
+    // write into another file
+    Abc_TtStoreWrite( pFileOutput, p, 1 );
+
+    // delete data-structure
+    Abc_TtStoreFree( p, -1 );
+    printf( "Input file \"%s\" was copied into output file \"%s\".\n", pFileInput, pFileOutput );
+}
+
 /**Function*************************************************************
 
   Synopsis    [Read truth tables from input file and write them into output file.]

src/bool/kit/kitGraph.c

@@ -394,6 +394,80 @@ int Kit_GraphLeafDepth_rec( Kit_Graph_t * pGraph, Kit_Node_t * pNode, Kit_Node_t
     return Depth;
 }
 
+/**Function*************************************************************
+
+  Synopsis    [Derives logic level of the node.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Kit_GraphLevelNum_rec( Kit_Graph_t * pGraph, Kit_Node_t * pNode )
+{
+    int Depth0, Depth1;
+    if ( Kit_GraphNodeIsVar(pGraph, pNode) )
+        return 0;
+    Depth0 = Kit_GraphLevelNum_rec( pGraph, Kit_GraphNodeFanin0(pGraph, pNode) );
+    Depth1 = Kit_GraphLevelNum_rec( pGraph, Kit_GraphNodeFanin1(pGraph, pNode) );
+    return 1 + KIT_MAX( Depth0, Depth1 );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Returns FF nodes and levels.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Kit_TruthStats( unsigned * pTruth, int nVars, Vec_Int_t * vMemory )
+{
+    Kit_Graph_t * pGraph = Kit_TruthToGraph( pTruth, nVars, vMemory );
+    int nNodes  = Kit_GraphNodeNum( pGraph );
+    int nLevels = Kit_GraphLevelNum_rec( pGraph, Kit_GraphNodeLast(pGraph) );
+    Kit_GraphFree( pGraph );
+    return (nLevels << 16) | nNodes;
+}
+int * Kit_TruthStatsArray( unsigned * pArray, int nVars, int nFuncs )
+{
+    int f, * pRes = ABC_CALLOC( int, nFuncs );
+    int nInts = Abc_TruthWordNum( nVars );
+    Vec_Int_t * vMemory = Vec_IntAlloc( 1 << 16 );
+    for ( f = 0; f < nFuncs; f++ )
+        pRes[f] = Kit_TruthStats( pArray + f*nInts, nVars, vMemory );
+    Vec_IntFree( vMemory );
+    return pRes;
+}
+int Kit_TruthFindVarNum( char * pFileName )
+{
+    int i;
+    for ( i = 0; i < (int)strlen(pFileName); i++ )
+        if ( pFileName[i] >= '0' && pFileName[i] <= '9' )
+            return atoi(pFileName+i);
+    return -1;
+}
+int * Kit_TruthTest( char * pFileName )
+{
+    abctime clk   = Abc_Clock(); int i;
+    int nFileSize = Extra_FileSize( pFileName );
+    int nVars     = Kit_TruthFindVarNum( pFileName );
+    int nFuncs    = nFileSize / 4 / Abc_TruthWordNum(nVars);
+    unsigned * pA = (unsigned *)Extra_FileReadContents( pFileName );
+    int * pResult = Kit_TruthStatsArray( pA, nVars, nFuncs );
+    printf( "Finished proceessing %d functions with %d variables. ", nFuncs, nVars );
+    Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
+    ABC_FREE( pA );
+    for ( i = 0; i < 5; i++ )
+        printf( "Function %3d :  AND2 = %3d  Lev = %3d\n", i, pResult[i] & 0xFFFF, pResult[i] >> 16 );
+    return pResult;
+}
+
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