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Adding another network duplicator.

This commit is contained in:
Alan Mishchenko 2013-07-16 00:34:26 -07:00
parent f8f37d261b
commit fd80bf20da
1 changed files with 58 additions and 0 deletions
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58
src/base/abc/abcNtk.c
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@ -694,6 +694,64 @@ Abc_Ntk_t * Abc_NtkDouble( Abc_Ntk_t * pNtk )
return pNtkNew;
}
/**Function*************************************************************
Synopsis [Duplicate the bottom levels of the network.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Ntk_t * Abc_NtkBottom( Abc_Ntk_t * pNtk, int Level )
{
char Buffer[500];
Abc_Ntk_t * pNtkNew;
Abc_Obj_t * pObj, * pFanin;
int i, k;
assert( Abc_NtkIsLogic(pNtk) );
assert( Abc_NtkLatchNum(pNtk) == 0 );
// start the network
pNtkNew = Abc_NtkAlloc( pNtk->ntkType, pNtk->ntkFunc, 1 );
sprintf( Buffer, "%s%s", pNtk->pName, "_bot" );
pNtkNew->pName = Extra_UtilStrsav(Buffer);
// clean the node copy fields
Abc_NtkCleanCopy( pNtk );
// clone CIs/CIs/boxes
Abc_NtkForEachPi( pNtk, pObj, i )
Abc_NtkDupObj( pNtkNew, pObj, 1 );
// copy the internal nodes
// duplicate the nets and nodes (CIs/COs/latches already dupped)
Abc_NtkForEachObj( pNtk, pObj, i )
if ( pObj->pCopy == NULL && Abc_ObjIsNode(pObj) && Abc_ObjLevel(pObj) <= Level )
Abc_NtkDupObj(pNtkNew, pObj, 0);
// reconnect all objects (no need to transfer attributes on edges)
Abc_NtkForEachObj( pNtk, pObj, i )
Abc_ObjForEachFanin( pObj, pFanin, k )
if ( pObj->pCopy && pFanin->pCopy )
Abc_ObjAddFanin( pObj->pCopy, pFanin->pCopy );
// create new primary outputs
Abc_NtkForEachNode( pNtk, pObj, i )
Abc_ObjForEachFanin( pObj, pFanin, k )
if ( pObj->pCopy == NULL && pFanin->pCopy != NULL && Abc_ObjIsNode(pFanin) )
{
Abc_Obj_t * pNodeNew = Abc_NtkCreatePo(pNtkNew);
Abc_ObjAddFanin( pNodeNew, pFanin->pCopy );
Abc_ObjAssignName( pNodeNew, Abc_ObjName(pNodeNew), NULL );
}
// perform the final check
if ( !Abc_NtkCheck( pNtkNew ) )
fprintf( stdout, "Abc_NtkBottom(): Network check has failed.\n" );
return pNtkNew;
}
/**Function*************************************************************
Synopsis [Attaches the second network at the bottom of the first.]