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authorAlan Mishchenko <alanmi@berkeley.edu>2006-02-20 08:01:00 -0800
committerAlan Mishchenko <alanmi@berkeley.edu>2006-02-20 08:01:00 -0800
commit8eef7f8326e715ea4e9e84f46487cf4657601c25 (patch)
tree03a394e5a245bd3c0ed0b6397275c5b029adfb41 /src/base/abci/abcCollapse.c
parent77d7377442c28fd5c65144d7ea23938600967b2b (diff)
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Version abc60220
Diffstat (limited to 'src/base/abci/abcCollapse.c')
-rw-r--r--src/base/abci/abcCollapse.c149
1 files changed, 0 insertions, 149 deletions
diff --git a/src/base/abci/abcCollapse.c b/src/base/abci/abcCollapse.c
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--- a/src/base/abci/abcCollapse.c
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@@ -1,149 +0,0 @@
-/**CFile****************************************************************
-
- FileName [abcCollapse.c]
-
- SystemName [ABC: Logic synthesis and verification system.]
-
- PackageName [Network and node package.]
-
- Synopsis [Collapsing the network into two-levels.]
-
- Author [Alan Mishchenko]
-
- Affiliation [UC Berkeley]
-
- Date [Ver. 1.0. Started - June 20, 2005.]
-
- Revision [$Id: abcCollapse.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
-
-***********************************************************************/
-
-#include "abc.h"
-
-////////////////////////////////////////////////////////////////////////
-/// DECLARATIONS ///
-////////////////////////////////////////////////////////////////////////
-
-static Abc_Ntk_t * Abc_NtkFromGlobalBdds( Abc_Ntk_t * pNtk );
-static Abc_Obj_t * Abc_NodeFromGlobalBdds( Abc_Ntk_t * pNtkNew, DdManager * dd, DdNode * bFunc );
-
-////////////////////////////////////////////////////////////////////////
-/// FUNCTION DEFINITIONS ///
-////////////////////////////////////////////////////////////////////////
-
-/**Function*************************************************************
-
- Synopsis [Collapses the network.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-Abc_Ntk_t * Abc_NtkCollapse( Abc_Ntk_t * pNtk, int fVerbose )
-{
- Abc_Ntk_t * pNtkNew;
-
- assert( Abc_NtkIsStrash(pNtk) );
-
- // compute the global BDDs
- if ( Abc_NtkGlobalBdds(pNtk, 0) == NULL )
- return NULL;
- if ( fVerbose )
- printf( "The shared BDD size is %d nodes.\n", Cudd_ReadKeys(pNtk->pManGlob) - Cudd_ReadDead(pNtk->pManGlob) );
-
- // create the new network
- pNtkNew = Abc_NtkFromGlobalBdds( pNtk );
- Abc_NtkFreeGlobalBdds( pNtk );
- if ( pNtkNew == NULL )
- {
- Cudd_Quit( pNtk->pManGlob );
- pNtk->pManGlob = NULL;
- return NULL;
- }
- Extra_StopManager( pNtk->pManGlob );
- pNtk->pManGlob = NULL;
-
- // make the network minimum base
- Abc_NtkMinimumBase( pNtkNew );
-
- if ( pNtk->pExdc )
- pNtkNew->pExdc = Abc_NtkDup( pNtk->pExdc );
-
- // make sure that everything is okay
- if ( !Abc_NtkCheck( pNtkNew ) )
- {
- printf( "Abc_NtkCollapse: The network check has failed.\n" );
- Abc_NtkDelete( pNtkNew );
- return NULL;
- }
- return pNtkNew;
-}
-
-/**Function*************************************************************
-
- Synopsis [Derives the network with the given global BDD.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-Abc_Ntk_t * Abc_NtkFromGlobalBdds( Abc_Ntk_t * pNtk )
-{
- ProgressBar * pProgress;
- Abc_Ntk_t * pNtkNew;
- Abc_Obj_t * pNode, * pNodeNew;
- DdManager * dd = pNtk->pManGlob;
- int i;
- // start the new network
- pNtkNew = Abc_NtkStartFrom( pNtk, ABC_NTK_LOGIC, ABC_FUNC_BDD );
- // make sure the new manager has the same number of inputs
- Cudd_bddIthVar( pNtkNew->pManFunc, dd->size-1 );
- // process the POs
- pProgress = Extra_ProgressBarStart( stdout, Abc_NtkCoNum(pNtk) );
- Abc_NtkForEachCo( pNtk, pNode, i )
- {
- Extra_ProgressBarUpdate( pProgress, i, NULL );
- pNodeNew = Abc_NodeFromGlobalBdds( pNtkNew, dd, Vec_PtrEntry(pNtk->vFuncsGlob, i) );
- Abc_ObjAddFanin( pNode->pCopy, pNodeNew );
- }
- Extra_ProgressBarStop( pProgress );
- return pNtkNew;
-}
-
-/**Function*************************************************************
-
- Synopsis [Derives the network with the given global BDD.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-Abc_Obj_t * Abc_NodeFromGlobalBdds( Abc_Ntk_t * pNtkNew, DdManager * dd, DdNode * bFunc )
-{
- Abc_Obj_t * pNodeNew, * pTemp;
- int i;
- // create a new node
- pNodeNew = Abc_NtkCreateNode( pNtkNew );
- // add the fanins in the order, in which they appear in the reordered manager
- Abc_NtkForEachCi( pNtkNew, pTemp, i )
- Abc_ObjAddFanin( pNodeNew, Abc_NtkCi(pNtkNew, dd->invperm[i]) );
- // transfer the function
- pNodeNew->pData = Extra_TransferLevelByLevel( dd, pNtkNew->pManFunc, bFunc ); Cudd_Ref( pNodeNew->pData );
- return pNodeNew;
-}
-
-
-////////////////////////////////////////////////////////////////////////
-/// END OF FILE ///
-////////////////////////////////////////////////////////////////////////
-
-