Version abc71216

1 files changed, 110 insertions, 0 deletions

diff --git a/src/aig/ntl/ntlMap.c b/src/aig/ntl/ntlMap.c
new file mode 100644
index 00000000..1d8443b4
--- /dev/null
+++ b/src/aig/ntl/ntlMap.c
@@ -0,0 +1,110 @@
+/**CFile****************************************************************
+
+  FileName    [ntlMap.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Netlist representation.]
+
+  Synopsis    [Derives mapped network from AIG.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - June 20, 2005.]
+
+  Revision    [$Id: ntlMap.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "ntl.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Allocates mapping for the given AIG.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Vec_Ptr_t * Ntl_MappingAlloc( int nLuts, int nVars )
+{
+    char * pMemory;
+    Ntl_Lut_t ** pArray;
+    int nEntrySize, i;
+    nEntrySize = sizeof(Ntl_Lut_t) + sizeof(int) * nVars + sizeof(unsigned) * Aig_TruthWordNum(nVars);
+    pArray = (Ntl_Lut_t **)malloc( (sizeof(Ntl_Lut_t *) + nEntrySize) * nLuts );
+    pMemory = (char *)(pArray + nLuts);
+    memset( pMemory, 0, nEntrySize * nLuts );
+    for ( i = 0; i < nLuts; i++ )
+    {
+        pArray[i] = (Ntl_Lut_t *)pMemory;
+        pArray[i]->pFanins = (int *)(pMemory + sizeof(Ntl_Lut_t));
+        pArray[i]->pTruth = (unsigned *)(pMemory + sizeof(Ntl_Lut_t) + sizeof(int) * nVars);
+        pMemory += nEntrySize;
+    }
+    return Vec_PtrAllocArray( (void **)pArray, nLuts );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Derives trivial mapping from the AIG.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Vec_Ptr_t * Ntl_MappingFromAig( Aig_Man_t * p )
+{
+    Vec_Ptr_t * vMapping;
+    Ntl_Lut_t * pLut;
+    Aig_Obj_t * pObj;
+    int i, k = 0, nBytes = 4;
+    vMapping = Ntl_MappingAlloc( Aig_ManAndNum(p) + (int)(Aig_ManConst1(p)->nRefs > 0), 2 );
+    if ( Aig_ManConst1(p)->nRefs > 0 )
+    {
+        pLut = Vec_PtrEntry( vMapping, k++ );
+        pLut->Id = 0;
+        pLut->nFanins = 0;
+        memset( pLut->pTruth, 0xFF, nBytes );
+    }
+    Aig_ManForEachNode( p, pObj, i )
+    {
+        pLut = Vec_PtrEntry( vMapping, k++ );
+        pLut->Id = pObj->Id;
+        pLut->nFanins = 2;
+        pLut->pFanins[0] = Aig_ObjFaninId0(pObj);
+        pLut->pFanins[1] = Aig_ObjFaninId1(pObj);
+        if      (  Aig_ObjFaninC0(pObj) &&  Aig_ObjFaninC1(pObj) ) 
+            memset( pLut->pTruth, 0x11, nBytes );
+        else if ( !Aig_ObjFaninC0(pObj) &&  Aig_ObjFaninC1(pObj) )
+            memset( pLut->pTruth, 0x22, nBytes );
+        else if (  Aig_ObjFaninC0(pObj) && !Aig_ObjFaninC1(pObj) )
+            memset( pLut->pTruth, 0x44, nBytes );
+        else if ( !Aig_ObjFaninC0(pObj) && !Aig_ObjFaninC1(pObj) )
+            memset( pLut->pTruth, 0x88, nBytes );
+    }
+    assert( k == Vec_PtrSize(vMapping) );
+    return vMapping;
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+