Version abc90118

1 files changed, 361 insertions, 0 deletions

diff --git a/src/map/amap/amapLib.c b/src/map/amap/amapLib.c
new file mode 100644
index 00000000..816f0703
--- /dev/null
+++ b/src/map/amap/amapLib.c
@@ -0,0 +1,361 @@
+/**CFile****************************************************************
+
+  FileName    [amapLib.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Technology mapper for standard cells.]
+
+  Synopsis    [Standard-cell library.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - June 20, 2005.]
+
+  Revision    [$Id: amapLib.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "amapInt.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Allocs a library.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Amap_Lib_t * Amap_LibAlloc()
+{
+    Amap_Lib_t * p;
+    p = (Amap_Lib_t *)ALLOC( Amap_Lib_t, 1 );
+    memset( p, 0, sizeof(Amap_Lib_t) );
+    p->vGates = Vec_PtrAlloc( 100 );
+    p->pMemGates = Aig_MmFlexStart();
+    p->pMemSet = Aig_MmFlexStart();
+    return p;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Deallocs a library.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Amap_LibFree( Amap_Lib_t * p )
+{
+    if ( p == NULL )
+        return;
+    if ( p->vSelect )
+        Vec_PtrFree( p->vSelect );
+    if ( p->vSorted )
+        Vec_PtrFree( p->vSorted );
+    if ( p->vGates )
+        Vec_PtrFree( p->vGates );
+    if ( p->vRules )
+        Vec_VecFree( (Vec_Vec_t *)p->vRules );
+    if ( p->vRulesX )
+        Vec_VecFree( (Vec_Vec_t *)p->vRulesX );
+    if ( p->vRules3 )
+        Vec_IntFree( p->vRules3 );
+    Aig_MmFlexStop( p->pMemGates, 0 );
+    Aig_MmFlexStop( p->pMemSet, 0 );
+    FREE( p->pRules );
+    FREE( p->pRulesX );
+    FREE( p->pNodes );
+    free( p );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Returns the largest gate size.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Amap_LibNumPinsMax( Amap_Lib_t * p )
+{
+    Amap_Gat_t * pGate;
+    int i, Counter = 0;
+    Amap_LibForEachGate( p, pGate, i )
+        if ( Counter < (int)pGate->nPins )
+            Counter = pGate->nPins;
+    return Counter;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Writes one pin.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Amap_LibWritePin( FILE * pFile, Amap_Pin_t * pPin )
+{
+    char * pPhaseNames[10] = { "UNKNOWN", "INV", "NONINV" };
+    fprintf( pFile, "    PIN " );
+    fprintf( pFile, "%9s ",     pPin->pName );
+    fprintf( pFile, "%10s ",    pPhaseNames[pPin->Phase] );
+    fprintf( pFile, "%6d ",     (int)pPin->dLoadInput );
+    fprintf( pFile, "%6d ",     (int)pPin->dLoadMax );
+    fprintf( pFile, "%6.2f ",   pPin->dDelayBlockRise );
+    fprintf( pFile, "%6.2f ",   pPin->dDelayFanoutRise );
+    fprintf( pFile, "%6.2f ",   pPin->dDelayBlockFall );
+    fprintf( pFile, "%6.2f",    pPin->dDelayFanoutFall );
+    fprintf( pFile, "\n" );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Writes one gate.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Amap_LibWriteGate( FILE * pFile, Amap_Gat_t * pGate, int fPrintDsd )
+{
+    Amap_Pin_t * pPin;
+    fprintf( pFile, "GATE " );
+    fprintf( pFile, "%12s ",      pGate->pName );
+    fprintf( pFile, "%10.2f   ",  pGate->dArea );
+    fprintf( pFile, "%s=%s;\n",   pGate->pOutName,    pGate->pForm );
+    if ( fPrintDsd )
+    {
+        if ( pGate->pFunc == NULL )
+            printf( "Truth table is not available.\n" );
+        else
+            Kit_DsdPrintFromTruth( pGate->pFunc, pGate->nPins );
+    }
+    Amap_GateForEachPin( pGate, pPin )
+        Amap_LibWritePin( pFile, pPin );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Writes library.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Amap_LibWrite( FILE * pFile, Amap_Lib_t * pLib, int fPrintDsd )
+{
+    Amap_Gat_t * pGate;
+    int i;
+    fprintf( pFile, "# The genlib library \"%s\".\n", pLib->pName );
+    Amap_LibForEachGate( pLib, pGate, i )
+        Amap_LibWriteGate( pFile, pGate, fPrintDsd );
+}
+        
+/**Function*************************************************************
+
+  Synopsis    [Compares two gates by area.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int Amap_LibCompareGatesByArea( Amap_Gat_t ** pp1, Amap_Gat_t ** pp2 )
+{
+    double Diff = (*pp1)->dArea - (*pp2)->dArea;
+    if ( Diff < 0.0 )
+        return -1;
+    if ( Diff > 0.0 ) 
+        return 1;
+    return 0; 
+}
+        
+/**Function*************************************************************
+
+  Synopsis    [Compares gates by area.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Vec_Ptr_t * Amap_LibSortGatesByArea( Amap_Lib_t * pLib )
+{
+    Vec_Ptr_t * vSorted;
+    vSorted = Vec_PtrDup( pLib->vGates );
+    qsort( (void *)Vec_PtrArray(vSorted), Vec_PtrSize(vSorted), sizeof(void *), 
+            (int (*)(const void *, const void *)) Amap_LibCompareGatesByArea );
+    return vSorted;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Finds min-area gate with the given function.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Amap_Gat_t * Amap_LibFindGate( Amap_Lib_t * p, unsigned uTruth )
+{
+    Amap_Gat_t * pGate;
+    int i;
+    Vec_PtrForEachEntry( p->vSorted, pGate, i )
+        if ( pGate->nPins <= 5 && pGate->pFunc[0] == uTruth )
+            return pGate;
+    return NULL;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Selects gates useful for area-only mapping.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Vec_Ptr_t * Amap_LibSelectGates( Amap_Lib_t * p, int fVerbose )
+{
+    Vec_Ptr_t * vSelect;
+    Amap_Gat_t * pGate, * pGate2;
+    int i, k, clk = clock();
+    p->pGate0   = Amap_LibFindGate( p, 0 );
+    p->pGate1   = Amap_LibFindGate( p, ~0 );
+    p->pGateBuf = Amap_LibFindGate( p, 0xAAAAAAAA );
+    p->pGateInv = Amap_LibFindGate( p, ~0xAAAAAAAA );
+    vSelect = Vec_PtrAlloc( 100 );
+    Vec_PtrForEachEntry( p->vSorted, pGate, i )
+    {
+        if ( pGate->pFunc == NULL )
+            continue;
+        Vec_PtrForEachEntryStop( p->vSorted, pGate2, k, i )
+        {
+            if ( pGate2->pFunc == NULL )
+                continue;
+            if ( pGate2->nPins != pGate->nPins )
+                continue;
+            if ( !memcmp( pGate2->pFunc, pGate->pFunc, sizeof(unsigned) * Aig_TruthWordNum(pGate->nPins) ) )
+                break;
+        }
+        if ( k < i )
+            continue;
+        Vec_PtrPush( vSelect, pGate );            
+    }
+    return vSelect;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Selects gates useful for area-only mapping.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Amap_LibPrintSelectedGates( Amap_Lib_t * p, int fAllGates )
+{
+    Vec_Ptr_t * vArray;
+    Amap_Gat_t * pGate;
+    int i;
+    vArray = fAllGates? p->vGates : p->vSelect;
+    Vec_PtrForEachEntry( vArray, pGate, i )
+    {
+        printf( "Gate %4d : %15s   Area = %9.2f\n", pGate->Id, pGate->pName, pGate->dArea );
+        printf( "    Formula: %s=%s\n", pGate->pOutName, pGate->pForm );
+        printf( "    DSD:     " );
+        Kit_DsdPrintFromTruth( pGate->pFunc, pGate->nPins );
+    }
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Parses equations for the gates.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Amap_Lib_t * Amap_LibReadAndPrepare( char * pFileName, int fVerbose, int fVeryVerbose )
+{
+    Amap_Lib_t * p;
+    int clk = clock();
+    p = Amap_LibReadFile( pFileName, fVerbose );
+    if ( fVerbose )
+        printf( "Read %d gates from file \"%s\".\n", Vec_PtrSize(p->vGates), pFileName );
+    if ( p == NULL )
+        return NULL;
+    if ( !Amap_LibParseEquations( p, fVerbose ) )
+    {
+        Amap_LibFree( p );
+        return NULL;
+    }
+    p->vSorted = Amap_LibSortGatesByArea( p );
+    p->vSelect = Amap_LibSelectGates( p, fVerbose );
+    if ( fVerbose )
+    {
+        printf( "Selected %d functionally unique gates. ",
+            Vec_PtrSize(p->vSelect), Vec_PtrSize(p->vSorted) );
+        PRT( "Time", clock() - clk );
+    }
+    clk = clock();
+    Amap_LibCreateRules( p, fVeryVerbose );
+    if ( fVerbose )
+    {
+        printf( "Created %d rules and %d matches. ", 
+            p->nNodes, p->nSets );
+        PRT( "Time", clock() - clk );
+    }
+    return p;
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+