Version abc71001

1 files changed, 146 insertions, 0 deletions

diff --git a/src/map/if/ifCore.c b/src/map/if/ifCore.c
new file mode 100644
index 00000000..59ad5a1c
--- /dev/null
+++ b/src/map/if/ifCore.c
@@ -0,0 +1,146 @@
+/**CFile****************************************************************
+
+  FileName    [ifCore.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [FPGA mapping based on priority cuts.]
+
+  Synopsis    [The central part of the mapper.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - November 21, 2006.]
+
+  Revision    [$Id: ifCore.c,v 1.00 2006/11/21 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "if.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+extern int s_MappingTime;
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int If_ManPerformMapping( If_Man_t * p )
+{
+    p->pPars->fAreaOnly = p->pPars->fArea; // temporary
+
+    // create the CI cutsets
+    If_ManSetupCiCutSets( p );
+    // allocate memory for other cutsets
+    If_ManSetupSetAll( p, If_ManCrossCut(p) );
+
+    // try sequential mapping
+    if ( p->pPars->fSeqMap )
+    {
+        int RetValue;
+//        printf( "Currently sequential mapping is not performed.\n" );
+        RetValue = If_ManPerformMappingSeq( p );
+        return RetValue;
+//        return 1;
+    }
+
+    return If_ManPerformMappingComb( p );
+}
+
+
+/**Function*************************************************************
+
+  Synopsis    []
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+int If_ManPerformMappingComb( If_Man_t * p )
+{
+    If_Obj_t * pObj;
+    int clkTotal = clock();
+    int i;
+
+    // set arrival times and fanout estimates
+    If_ManForEachCi( p, pObj, i )
+    {
+        If_ObjSetArrTime( pObj, p->pPars->pTimesArr[i] );
+        pObj->EstRefs = (float)1.0;
+    }
+
+    // delay oriented mapping
+    if ( p->pPars->fPreprocess && !p->pPars->fArea )
+    {
+        // map for delay
+        If_ManPerformMappingRound( p, p->pPars->nCutsMax, 0, 1, "Delay" );
+        // map for delay second option
+        p->pPars->fFancy = 1;
+        If_ManResetOriginalRefs( p );
+        If_ManPerformMappingRound( p, p->pPars->nCutsMax, 0, 1, "Delay-2" );
+        p->pPars->fFancy = 0;
+        // map for area
+        p->pPars->fArea = 1;
+        If_ManResetOriginalRefs( p );
+        If_ManPerformMappingRound( p, p->pPars->nCutsMax, 0, 1, "Area" );
+        p->pPars->fArea = 0;
+    }
+    else
+        If_ManPerformMappingRound( p, p->pPars->nCutsMax, 0, 0, "Delay" );
+
+    // try to improve area by expanding and reducing the cuts
+    if ( p->pPars->fExpRed && !p->pPars->fTruth )
+        If_ManImproveMapping( p );
+
+    // area flow oriented mapping
+    for ( i = 0; i < p->pPars->nFlowIters; i++ )
+    {
+        If_ManPerformMappingRound( p, p->pPars->nCutsMax, 1, 0, "Flow" );
+        if ( p->pPars->fExpRed && !p->pPars->fTruth )
+            If_ManImproveMapping( p );
+    }
+
+    // area oriented mapping
+    for ( i = 0; i < p->pPars->nAreaIters; i++ )
+    {
+        If_ManPerformMappingRound( p, p->pPars->nCutsMax, 2, 0, "Area" );
+        if ( p->pPars->fExpRed && !p->pPars->fTruth )
+            If_ManImproveMapping( p );
+    }
+
+    if ( p->pPars->fVerbose )
+    {
+//        printf( "Total memory = %7.2f Mb. Peak cut memory = %7.2f Mb.  ", 
+//            1.0 * (p->nObjBytes + 2*sizeof(void *)) * If_ManObjNum(p) / (1<<20), 
+//            1.0 * p->nSetBytes * Mem_FixedReadMaxEntriesUsed(p->pMemSet) / (1<<20) );
+        PRT( "Total time", clock() - clkTotal );
+    }
+//    printf( "Cross cut memory = %d.\n", Mem_FixedReadMaxEntriesUsed(p->pMemSet) );
+    s_MappingTime = clock() - clkTotal;
+    return 1;
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+