Version abc90215

1 files changed, 214 insertions, 0 deletions

diff --git a/src/aig/gia/giaAig.c b/src/aig/gia/giaAig.c
new file mode 100644
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--- /dev/null
+++ b/src/aig/gia/giaAig.c
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+/**CFile****************************************************************
+
+  FileName    [giaAig.c]
+
+  SystemName  [ABC: Logic synthesis and verification system.]
+
+  PackageName [Scalable AIG package.]
+
+  Synopsis    [Transformation between AIG manager.]
+
+  Author      [Alan Mishchenko]
+  
+  Affiliation [UC Berkeley]
+
+  Date        [Ver. 1.0. Started - June 20, 2005.]
+
+  Revision    [$Id: giaAig.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
+
+***********************************************************************/
+
+#include "gia.h"
+
+////////////////////////////////////////////////////////////////////////
+///                        DECLARATIONS                              ///
+////////////////////////////////////////////////////////////////////////
+
+static inline int Gia_ObjChild0Copy( Aig_Obj_t * pObj )  { return Gia_LitNotCond( Aig_ObjFanin0(pObj)->iData, Aig_ObjFaninC0(pObj) ); }
+static inline int Gia_ObjChild1Copy( Aig_Obj_t * pObj )  { return Gia_LitNotCond( Aig_ObjFanin1(pObj)->iData, Aig_ObjFaninC1(pObj) ); }
+
+static inline Aig_Obj_t * Gia_ObjChild0Copy2( Aig_Obj_t ** ppNodes, Gia_Obj_t * pObj, int Id )  { return Aig_NotCond( ppNodes[Gia_ObjFaninId0(pObj, Id)], Gia_ObjFaninC0(pObj) ); }
+static inline Aig_Obj_t * Gia_ObjChild1Copy2( Aig_Obj_t ** ppNodes, Gia_Obj_t * pObj, int Id )  { return Aig_NotCond( ppNodes[Gia_ObjFaninId1(pObj, Id)], Gia_ObjFaninC1(pObj) ); }
+
+////////////////////////////////////////////////////////////////////////
+///                     FUNCTION DEFINITIONS                         ///
+////////////////////////////////////////////////////////////////////////
+
+/**Function*************************************************************
+
+  Synopsis    [Derives combinational miter of the two AIGs.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Gia_ManFromAig_rec( Gia_Man_t * pNew, Aig_Obj_t * pObj )
+{
+    if ( pObj->pData )
+        return;
+    if ( Aig_ObjIsPi(pObj) )
+    {
+        pObj->iData = Gia_ManAppendCi( pNew );
+        return;
+    }
+    assert( Aig_ObjIsNode(pObj) );
+    Gia_ManFromAig_rec( pNew, Aig_ObjFanin0(pObj) );
+    Gia_ManFromAig_rec( pNew, Aig_ObjFanin1(pObj) );
+    pObj->iData = Gia_ManAppendAnd( pNew, Gia_ObjChild0Copy(pObj), Gia_ObjChild1Copy(pObj) );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Duplicates AIG in the DFS order.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Gia_Man_t * Gia_ManFromAig( Aig_Man_t * p )
+{
+    Gia_Man_t * pNew;
+    Aig_Obj_t * pObj;
+    int i;
+    // add fake POs to all the dangling nodes (choices)
+    Aig_ManForEachNode( p, pObj, i )
+        assert( Aig_ObjRefs(pObj) > 0 );
+    // create the new manager
+    pNew = Gia_ManStart( Aig_ManObjNum(p) );
+    pNew->pName = Aig_UtilStrsav( p->pName );
+    // create the PIs
+    Aig_ManCleanData( p );
+    Aig_ManConst1(p)->iData = 1;
+    Aig_ManForEachPi( p, pObj, i )
+    {
+//        if ( Aig_ObjRefs(pObj) == 0 )
+            pObj->iData = Gia_ManAppendCi( pNew );
+    }
+    // add logic for the POs
+    Aig_ManForEachPo( p, pObj, i )
+    {
+        Gia_ManFromAig_rec( pNew, Aig_ObjFanin0(pObj) );        
+        Gia_ManAppendCo( pNew, Gia_ObjChild0Copy(pObj) );
+    }
+    Gia_ManSetRegNum( pNew, Aig_ManRegNum(p) );
+    return pNew;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Handles choices as additional combinational outputs.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Gia_Man_t * Gia_ManFromAigSwitch( Aig_Man_t * p )
+{
+    Gia_Man_t * pNew;
+    Aig_Obj_t * pObj;
+    int i;
+    // create the new manager
+    pNew = Gia_ManStart( Aig_ManObjNum(p) );
+    pNew->pName = Aig_UtilStrsav( p->pName );
+    // create the PIs
+    Aig_ManCleanData( p );
+    Aig_ManConst1(p)->iData = 1;
+    Aig_ManForEachPi( p, pObj, i )
+        pObj->iData = Gia_ManAppendCi( pNew );
+    // add POs corresponding to the nodes with choices
+    Aig_ManForEachNode( p, pObj, i )
+        if ( Aig_ObjRefs(pObj) == 0 )
+        {
+            Gia_ManFromAig_rec( pNew, pObj );        
+            Gia_ManAppendCo( pNew, pObj->iData );
+        }
+    // add logic for the POs
+    Aig_ManForEachPo( p, pObj, i )
+    {
+        Gia_ManFromAig_rec( pNew, Aig_ObjFanin0(pObj) );        
+        Gia_ManAppendCo( pNew, Gia_ObjChild0Copy(pObj) );
+    }
+    Gia_ManSetRegNum( pNew, Aig_ManRegNum(p) );
+    return pNew;
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Derives combinational miter of the two AIGs.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+void Gia_ManToAig_rec( Aig_Man_t * pNew, Aig_Obj_t ** ppNodes, Gia_Man_t * p, Gia_Obj_t * pObj )
+{
+    if ( ppNodes[Gia_ObjId(p, pObj)] )
+        return;
+    if ( Gia_ObjIsCi(pObj) )
+    {
+        ppNodes[Gia_ObjId(p, pObj)] = Aig_ObjCreatePi( pNew );
+        return;
+    }
+    assert( Gia_ObjIsAnd(pObj) );
+    Gia_ManToAig_rec( pNew, ppNodes, p, Gia_ObjFanin0(pObj) );
+    Gia_ManToAig_rec( pNew, ppNodes, p, Gia_ObjFanin1(pObj) );
+    ppNodes[Gia_ObjId(p, pObj)] = Aig_And( pNew, Gia_ObjChild0Copy2(ppNodes, pObj, Gia_ObjId(p, pObj)), Gia_ObjChild1Copy2(ppNodes, pObj, Gia_ObjId(p, pObj)) );
+}
+
+/**Function*************************************************************
+
+  Synopsis    [Duplicates AIG in the DFS order.]
+
+  Description []
+               
+  SideEffects []
+
+  SeeAlso     []
+
+***********************************************************************/
+Aig_Man_t * Gia_ManToAig( Gia_Man_t * p )
+{
+    Aig_Man_t * pNew;
+    Aig_Obj_t ** ppNodes;
+    Gia_Obj_t * pObj;
+    int i;
+
+    // create the new manager
+    pNew = Aig_ManStart( Gia_ManAndNum(p) );
+    pNew->pName = Aig_UtilStrsav( p->pName );
+    ppNodes = ABC_CALLOC( Aig_Obj_t *, Gia_ManObjNum(p) );
+    // create the PIs
+    ppNodes[0] = Aig_ManConst0(pNew);
+    Gia_ManForEachCi( p, pObj, i )
+    {
+//        if ( Aig_ObjRefs(pObj) == 0 )
+            ppNodes[Gia_ObjId(p, pObj)] = Aig_ObjCreatePi( pNew );
+    }
+    // add logic for the POs
+    Gia_ManForEachCo( p, pObj, i )
+    {
+        Gia_ManToAig_rec( pNew, ppNodes, p, Gia_ObjFanin0(pObj) );        
+        ppNodes[Gia_ObjId(p, pObj)] = Aig_ObjCreatePo( pNew, Gia_ObjChild0Copy2(ppNodes, pObj, Gia_ObjId(p, pObj)) );
+    }
+    Aig_ManSetRegNum( pNew, Gia_ManRegNum(p) );
+    ABC_FREE( ppNodes );
+    return pNew;
+}
+
+////////////////////////////////////////////////////////////////////////
+///                       END OF FILE                                ///
+////////////////////////////////////////////////////////////////////////
+
+