/**Function*************************************************************
Synopsis [Starts the AIG manager.]
Description [The argument of this procedure is a soft limit on the
the number of nodes, or 0 if the limit is unknown.]
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Man_t * Aig_ManStart( int nNodesMax )
{
Aig_Man_t * p;
if ( nNodesMax <= 0 )
nNodesMax = 10007;
// start the manager
p = ALLOC( Aig_Man_t, 1 );
memset( p, 0, sizeof(Aig_Man_t) );
// perform initializations
p->nTravIds = 1;
p->fCatchExor = 0;
// allocate arrays for nodes
p->vPis = Vec_PtrAlloc( 100 );
p->vPos = Vec_PtrAlloc( 100 );
p->vObjs = Vec_PtrAlloc( 1000 );
p->vBufs = Vec_PtrAlloc( 100 );
// prepare the internal memory manager
p->pMemObjs = Aig_MmFixedStart( sizeof(Aig_Obj_t), nNodesMax );
// create the constant node
p->pConst1 = Aig_ManFetchMemory( p );
p->pConst1->Type = AIG_OBJ_CONST1;
p->pConst1->fPhase = 1;
p->nObjs[AIG_OBJ_CONST1]++;
// start the table
p->nTableSize = Aig_PrimeCudd( nNodesMax );
p->pTable = ALLOC( Aig_Obj_t *, p->nTableSize );
memset( p->pTable, 0, sizeof(Aig_Obj_t *) * p->nTableSize );
return p;
}
/**Function*************************************************************
Synopsis [Create the new node assuming it does not exist.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Obj_t * Aig_ObjCreate( Aig_Man_t * p, Aig_Obj_t * pGhost )
{
Aig_Obj_t * pObj;
assert( !Aig_IsComplement(pGhost) );
assert( Aig_ObjIsHash(pGhost) );
// assert( pGhost == &p->Ghost );
// get memory for the new object
pObj = Aig_ManFetchMemory( p );
pObj->Type = pGhost->Type;
// add connections
Aig_ObjConnect( p, pObj, pGhost->pFanin0, pGhost->pFanin1 );
// update node counters of the manager
p->nObjs[Aig_ObjType(pObj)]++;
assert( pObj->pData == NULL );
if ( p->pManHaig )
{
pGhost->pFanin0 = Aig_ObjHaig( pGhost->pFanin0 );
pGhost->pFanin1 = Aig_ObjHaig( pGhost->pFanin1 );
pObj->pHaig = Aig_ObjCreate( p->pManHaig, pGhost );
assert( !Aig_IsComplement(pObj->pHaig) );
// printf( "Creating HAIG node %d equivalent to node %d.\n", pObj->pHaig->Id, pObj->Id );
}
// create the power counter
if ( p->vProbs )
{
float Prob0 = Aig_Int2Float( Vec_IntEntry( p->vProbs, Aig_ObjFaninId0(pObj) ) );
float Prob1 = Aig_Int2Float( Vec_IntEntry( p->vProbs, Aig_ObjFaninId1(pObj) ) );
Prob0 = Aig_ObjFaninC0(pObj)? 1.0 - Prob0 : Prob0;
Prob1 = Aig_ObjFaninC1(pObj)? 1.0 - Prob1 : Prob1;
Vec_IntSetEntry( p->vProbs, pObj->Id, Aig_Float2Int(Prob0 * Prob1) );
}
return pObj;
}
/**Function*************************************************************
Synopsis [Creates primary input.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Obj_t * Aig_ObjCreatePi( Aig_Man_t * p )
{
Aig_Obj_t * pObj;
pObj = Aig_ManFetchMemory( p );
pObj->Type = AIG_OBJ_PI;
Vec_PtrPush( p->vPis, pObj );
p->nObjs[AIG_OBJ_PI]++;
return pObj;
}
/**Function*************************************************************
Synopsis [Creates primary output with the given driver.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Obj_t * Aig_ObjCreatePo( Aig_Man_t * p, Aig_Obj_t * pDriver )
{
Aig_Obj_t * pObj;
pObj = Aig_ManFetchMemory( p );
pObj->Type = AIG_OBJ_PO;
Vec_PtrPush( p->vPos, pObj );
Aig_ObjConnect( p, pObj, pDriver, NULL );
p->nObjs[AIG_OBJ_PO]++;
return pObj;
}
/**Function*************************************************************
Synopsis [Creates primary output with the given driver.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Obj_t * Aig_ObjCreatePo( Aig_Man_t * p, Aig_Obj_t * pDriver )
{
Aig_Obj_t * pObj;
pObj = Aig_ManFetchMemory( p );
pObj->Type = AIG_OBJ_PO;
Vec_PtrPush( p->vPos, pObj );
Aig_ObjConnect( p, pObj, pDriver, NULL );
p->nObjs[AIG_OBJ_PO]++;
if ( p->pManHaig && p->fCreatePios )
{
pObj->pHaig = Aig_ObjCreatePo( p->pManHaig, Aig_ObjHaig( pDriver ) );
// printf( "Creating PO HAIG node %d equivalent to PO %d.\n", pObj->pHaig->Id, pObj->Id );
}
return pObj;
}
/**Function*************************************************************
Synopsis [Create the new node assuming it does not exist.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Obj_t * Aig_ObjCreate( Aig_Man_t * p, Aig_Obj_t * pGhost )
{
Aig_Obj_t * pObj;
assert( !Aig_IsComplement(pGhost) );
assert( Aig_ObjIsHash(pGhost) );
assert( pGhost == &p->Ghost );
// get memory for the new object
pObj = Aig_ManFetchMemory( p );
pObj->Type = pGhost->Type;
// add connections
Aig_ObjConnect( p, pObj, pGhost->pFanin0, pGhost->pFanin1 );
// update node counters of the manager
p->nObjs[Aig_ObjType(pObj)]++;
assert( pObj->pData == NULL );
return pObj;
}
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Creates primary input.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Obj_t * Aig_ObjCreatePi( Aig_Man_t * p )
{
Aig_Obj_t * pObj;
pObj = Aig_ManFetchMemory( p );
pObj->Type = AIG_OBJ_PI;
Vec_PtrPush( p->vPis, pObj );
p->nObjs[AIG_OBJ_PI]++;
if ( p->pManHaig && p->fCreatePios )
{
p->pManHaig->nRegs++;
pObj->pHaig = Aig_ObjCreatePi( p->pManHaig );
// printf( "Creating PI HAIG node %d equivalent to PI %d.\n", pObj->pHaig->Id, pObj->Id );
}
return pObj;
}
