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/**CFile****************************************************************
FileName [giaTis.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Scalable AIG package.]
Synopsis [Technology independent synthesis.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: giaTis.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "gia.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Derives GIA with MUXes.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Gia_Man_t * Gia_ManTisDupMuxes( Gia_Man_t * p )
{
Gia_Man_t * pNew, * pTemp;
Gia_Obj_t * pObj, * pFan0, * pFan1, * pFanC;
int i;
assert( p->pMuxes == NULL );
ABC_FREE( p->pRefs );
Gia_ManCreateRefs( p );
// start the new manager
pNew = Gia_ManStart( 5000 );
pNew->pName = Abc_UtilStrsav( p->pName );
pNew->pSpec = Abc_UtilStrsav( p->pSpec );
pNew->pMuxes = ABC_CALLOC( unsigned, pNew->nObjsAlloc );
// create constant
Gia_ManConst0(p)->Value = 0;
// create PIs
Gia_ManForEachCi( p, pObj, i )
pObj->Value = Gia_ManAppendCi( pNew );
// create internal nodes
Gia_ManHashStart( pNew );
Gia_ManForEachAnd( p, pObj, i )
{
if ( !Gia_ObjIsMuxType(pObj) || (Gia_ObjRefNum(p, Gia_ObjFanin0(pObj)) > 1 && Gia_ObjRefNum(p, Gia_ObjFanin1(pObj)) > 1) )
pObj->Value = Gia_ManHashAnd( pNew, Gia_ObjFanin0Copy(pObj), Gia_ObjFanin1Copy(pObj) );
else if ( Gia_ObjRecognizeExor(pObj, &pFan0, &pFan1) )
pObj->Value = Gia_ManHashXorReal( pNew, Gia_ObjLitCopy(p, Gia_ObjToLit(p, pFan0)), Gia_ObjLitCopy(p, Gia_ObjToLit(p, pFan1)) );
else
{
pFanC = Gia_ObjRecognizeMux( pObj, &pFan1, &pFan0 );
pObj->Value = Gia_ManHashMuxReal( pNew, Gia_ObjLitCopy(p, Gia_ObjToLit(p, pFanC)), Gia_ObjLitCopy(p, Gia_ObjToLit(p, pFan1)), Gia_ObjLitCopy(p, Gia_ObjToLit(p, pFan0)) );
}
}
Gia_ManHashStop( pNew );
// create ROs
Gia_ManForEachCo( p, pObj, i )
pObj->Value = Gia_ManAppendCo( pNew, Gia_ObjFanin0Copy(pObj) );
Gia_ManSetRegNum( pNew, Gia_ManRegNum(p) );
// perform cleanup
pNew = Gia_ManCleanup( pTemp = pNew );
Gia_ManStop( pTemp );
return pNew;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gia_ManTisCollectMffc_rec( Gia_Man_t * p, int Id, Vec_Int_t * vMffc, Vec_Int_t * vLeaves )
{
Gia_Obj_t * pObj;
if ( Gia_ObjIsTravIdCurrentId(p, Id) )
return;
Gia_ObjSetTravIdCurrentId(p, Id);
if ( Gia_ObjRefNumId(p, Id) > 1 )
{
Vec_IntPush( vLeaves, Id );
return;
}
pObj = Gia_ManObj( p, Id );
if ( Gia_ObjIsCi(pObj) )
{
Vec_IntPush( vLeaves, Id );
return;
}
assert( Gia_ObjIsAnd(pObj) );
Gia_ManTisCollectMffc_rec( p, Gia_ObjFaninId0(pObj, Id), vMffc, vLeaves );
Gia_ManTisCollectMffc_rec( p, Gia_ObjFaninId1(pObj, Id), vMffc, vLeaves );
if ( Gia_ObjIsMuxId(p, Id) )
Gia_ManTisCollectMffc_rec( p, Gia_ObjFaninId2(p, Id), vMffc, vLeaves );
Vec_IntPush( vMffc, Id );
}
void Gia_ManTisCollectMffc( Gia_Man_t * p, int Id, Vec_Int_t * vMffc, Vec_Int_t * vLeaves )
{
Gia_Obj_t * pObj = Gia_ManObj( p, Id );
assert( Gia_ObjIsAnd(pObj) );
Vec_IntClear( vMffc );
Vec_IntClear( vLeaves );
Gia_ManIncrementTravId( p );
Gia_ManTisCollectMffc_rec( p, Gia_ObjFaninId0(pObj, Id), vMffc, vLeaves );
Gia_ManTisCollectMffc_rec( p, Gia_ObjFaninId1(pObj, Id), vMffc, vLeaves );
if ( Gia_ObjIsMuxId(p, Id) )
Gia_ManTisCollectMffc_rec( p, Gia_ObjFaninId2(p, Id), vMffc, vLeaves );
Vec_IntPush( vMffc, Id );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gia_ManTisPrintMffc( Gia_Man_t * p, int Id, Vec_Int_t * vMffc, Vec_Int_t * vLeaves )
{
Gia_Obj_t * pObj;
int i;
printf( "MFFC %d has %d nodes and %d leaves:\n", Id, Vec_IntSize(vMffc), Vec_IntSize(vLeaves) );
Gia_ManForEachObjVecReverse( vMffc, p, pObj, i )
{
printf( "Node %2d : ", Vec_IntSize(vMffc) - 1 - i );
Gia_ObjPrint( p, pObj );
}
Gia_ManForEachObjVec( vLeaves, p, pObj, i )
{
printf( "Leaf %2d : ", i );
Gia_ObjPrint( p, pObj );
}
printf( "\n" );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gia_ManTisTest( Gia_Man_t * pInit )
{
Gia_Man_t * p;
Gia_Obj_t * pObj;
Vec_Int_t * vMffc, * vLeaves;
int i;
vMffc = Vec_IntAlloc( 10 );
vLeaves = Vec_IntAlloc( 10 );
p = Gia_ManTisDupMuxes( pInit );
Gia_ManCreateRefs( p );
Gia_ManForEachAnd( p, pObj, i )
{
if ( Gia_ObjRefNumId(p, i) == 1 )
continue;
Gia_ManTisCollectMffc( p, i, vMffc, vLeaves );
Gia_ManTisPrintMffc( p, i, vMffc, vLeaves );
}
Gia_ManForEachCo( p, pObj, i )
{
if ( Gia_ObjRefNumId(p, Gia_ObjFaninId0p(p, pObj)) > 1 )
continue;
Gia_ManTisCollectMffc( p, Gia_ObjFaninId0p(p, pObj), vMffc, vLeaves );
Gia_ManTisPrintMffc( p, Gia_ObjFaninId0p(p, pObj), vMffc, vLeaves );
}
Gia_ManStop( p );
Vec_IntFree( vMffc );
Vec_IntFree( vLeaves );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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