mirror of https://github.com/YosysHQ/abc.git
155 lines
4.9 KiB
C
155 lines
4.9 KiB
C
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/**CFile****************************************************************
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FileName [abcDar.c]
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SystemName [ABC: Logic synthesis and verification system.]
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PackageName [Network and node package.]
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Synopsis [DAG-aware rewriting.]
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Author [Alan Mishchenko]
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Affiliation [UC Berkeley]
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Date [Ver. 1.0. Started - June 20, 2005.]
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Revision [$Id: abcDar.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
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***********************************************************************/
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#include "abc.h"
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#include "dar.h"
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////////////////////////////////////////////////////////////////////////
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/// DECLARATIONS ///
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////////////////////////////////////////////////////////////////////////
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static Dar_Man_t * Abc_NtkToDar( Abc_Ntk_t * pNtk );
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static Abc_Ntk_t * Abc_NtkFromDar( Abc_Ntk_t * pNtkOld, Dar_Man_t * pMan );
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////////////////////////////////////////////////////////////////////////
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/// FUNCTION DEFINITIONS ///
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////////////////////////////////////////////////////////////////////////
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/**Function*************************************************************
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Synopsis [Gives the current ABC network to AIG manager for processing.]
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Description []
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SideEffects []
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SeeAlso []
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***********************************************************************/
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Abc_Ntk_t * Abc_NtkDar( Abc_Ntk_t * pNtk )
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{
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Abc_Ntk_t * pNtkAig;
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Dar_Man_t * pMan;//, * pTemp;
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assert( Abc_NtkIsStrash(pNtk) );
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// convert to the AIG manager
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pMan = Abc_NtkToDar( pNtk );
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if ( pMan == NULL )
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return NULL;
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if ( !Dar_ManCheck( pMan ) )
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{
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printf( "Abc_NtkDar: AIG check has failed.\n" );
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Dar_ManStop( pMan );
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return NULL;
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}
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// perform balance
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Dar_ManPrintStats( pMan );
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// Dar_ManDumpBlif( pMan, "aig_temp.blif" );
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pMan->pPars = Dar_ManDefaultParams();
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Dar_ManRewrite( pMan );
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Dar_ManPrintStats( pMan );
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// convert from the AIG manager
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pNtkAig = Abc_NtkFromDar( pNtk, pMan );
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if ( pNtkAig == NULL )
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return NULL;
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Dar_ManStop( pMan );
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// make sure everything is okay
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if ( !Abc_NtkCheck( pNtkAig ) )
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{
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printf( "Abc_NtkDar: The network check has failed.\n" );
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Abc_NtkDelete( pNtkAig );
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return NULL;
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}
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return pNtkAig;
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}
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/**Function*************************************************************
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Synopsis [Converts the network from the AIG manager into ABC.]
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Description []
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SideEffects []
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SeeAlso []
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***********************************************************************/
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Dar_Man_t * Abc_NtkToDar( Abc_Ntk_t * pNtk )
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{
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Dar_Man_t * pMan;
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Abc_Obj_t * pObj;
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int i;
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// create the manager
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pMan = Dar_ManStart( Abc_NtkNodeNum(pNtk) );
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// transfer the pointers to the basic nodes
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Abc_AigConst1(pNtk)->pCopy = (Abc_Obj_t *)Dar_ManConst1(pMan);
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Abc_NtkForEachCi( pNtk, pObj, i )
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pObj->pCopy = (Abc_Obj_t *)Dar_ObjCreatePi(pMan);
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// perform the conversion of the internal nodes (assumes DFS ordering)
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Abc_NtkForEachNode( pNtk, pObj, i )
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pObj->pCopy = (Abc_Obj_t *)Dar_And( pMan, (Dar_Obj_t *)Abc_ObjChild0Copy(pObj), (Dar_Obj_t *)Abc_ObjChild1Copy(pObj) );
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// create the POs
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Abc_NtkForEachCo( pNtk, pObj, i )
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Dar_ObjCreatePo( pMan, (Dar_Obj_t *)Abc_ObjChild0Copy(pObj) );
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Dar_ManCleanup( pMan );
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return pMan;
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}
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/**Function*************************************************************
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Synopsis [Converts the network from the AIG manager into ABC.]
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Description []
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SideEffects []
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SeeAlso []
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***********************************************************************/
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Abc_Ntk_t * Abc_NtkFromDar( Abc_Ntk_t * pNtk, Dar_Man_t * pMan )
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{
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Vec_Ptr_t * vNodes;
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Abc_Ntk_t * pNtkNew;
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Dar_Obj_t * pObj;
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int i;
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// perform strashing
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pNtkNew = Abc_NtkStartFrom( pNtk, ABC_NTK_STRASH, ABC_FUNC_AIG );
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// transfer the pointers to the basic nodes
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Dar_ManConst1(pMan)->pData = Abc_AigConst1(pNtkNew);
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Dar_ManForEachPi( pMan, pObj, i )
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pObj->pData = Abc_NtkCi(pNtkNew, i);
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// rebuild the AIG
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vNodes = Dar_ManDfs( pMan );
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Vec_PtrForEachEntry( vNodes, pObj, i )
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pObj->pData = Abc_AigAnd( pNtkNew->pManFunc, (Abc_Obj_t *)Dar_ObjChild0Copy(pObj), (Abc_Obj_t *)Dar_ObjChild1Copy(pObj) );
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Vec_PtrFree( vNodes );
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// connect the PO nodes
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Dar_ManForEachPo( pMan, pObj, i )
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Abc_ObjAddFanin( Abc_NtkCo(pNtkNew, i), (Abc_Obj_t *)Dar_ObjChild0Copy(pObj) );
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if ( !Abc_NtkCheck( pNtkNew ) )
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fprintf( stdout, "Abc_NtkFromDar(): Network check has failed.\n" );
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return pNtkNew;
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}
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////////////////////////////////////////////////////////////////////////
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/// END OF FILE ///
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////////////////////////////////////////////////////////////////////////
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