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/**CFile****************************************************************
FileName [acecUtil.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [CEC for arithmetic circuits.]
Synopsis [Various utilities.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: acecUtil.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "acecInt.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Gia_PolynCollectXors_rec( Gia_Man_t * pGia, int iObj, Vec_Int_t * vXors )
{
Gia_Obj_t * pObj = Gia_ManObj( pGia, iObj );
if ( Gia_ObjIsTravIdCurrent(pGia, pObj) )
return;
Gia_ObjSetTravIdCurrent(pGia, pObj);
if ( !Gia_ObjIsAnd(pObj) || !Gia_ObjIsXor(pObj) || Gia_ObjRefNum(pGia, pObj) > 1 )
return;
Gia_PolynCollectXors_rec( pGia, Gia_ObjFaninId0(pObj, iObj), vXors );
Gia_PolynCollectXors_rec( pGia, Gia_ObjFaninId1(pObj, iObj), vXors );
Vec_IntPushUnique( vXors, iObj );
}
Vec_Int_t * Gia_PolynCollectLastXor( Gia_Man_t * pGia, int fVerbose )
{
Vec_Int_t * vXors = Vec_IntAlloc( 100 );
Gia_Obj_t * pObj = Gia_ManCo( pGia, Gia_ManCoNum(pGia)-1 );
ABC_FREE( pGia->pRefs );
Gia_ManCreateRefs( pGia );
Gia_ManIncrementTravId( pGia );
Gia_PolynCollectXors_rec( pGia, Gia_ObjFaninId0p(pGia, pObj), vXors );
Vec_IntReverseOrder( vXors );
ABC_FREE( pGia->pRefs );
return vXors;
}
void Gia_PolynAnalyzeXors( Gia_Man_t * pGia, int fVerbose )
{
int i, iDriver, Count = 0;
Vec_Int_t * vXors = Vec_IntAlloc( 100 );
if ( pGia->pMuxes == NULL )
{
printf( "AIG does not have XORs extracted.\n" );
return;
}
assert( pGia->pMuxes );
Gia_ManForEachCoDriverId( pGia, iDriver, i )
{
Vec_IntClear( vXors );
Gia_ManIncrementTravId( pGia );
Gia_PolynCollectXors_rec( pGia, iDriver, vXors );
//printf( "%3d : ", i );
//Vec_IntPrint( vXors );
printf( "%d=%d ", i, Vec_IntSize(vXors) );
Count += Vec_IntSize(vXors);
}
printf( "Total = %d.\n", Count );
Vec_IntFree( vXors );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Gia_Man_t * Gia_ManDupTopMostRange( Gia_Man_t * p )
{
Gia_Man_t * pNew;
Vec_Int_t * vTops = Vec_IntAlloc( 10 );
int i;
for ( i = 45; i < 52; i++ )
Vec_IntPush( vTops, Gia_ObjId( p, Gia_ObjFanin0(Gia_ManCo(p, i)) ) );
pNew = Gia_ManDupAndConesLimit( p, Vec_IntArray(vTops), Vec_IntSize(vTops), 100 );
Vec_IntFree( vTops );
return pNew;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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