/**Function*************************************************************
Synopsis [Duplicates while ORing the POs of sequential circuit.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Man_t * Saig_ManCreateEquivMiter( Aig_Man_t * pAig, Vec_Int_t * vPairs )
{
Aig_Man_t * pAigNew;
Aig_Obj_t * pObj, * pObj2, * pMiter;
int i;
if ( pAig->nConstrs > 0 )
{
printf( "The AIG manager should have no constraints.\n" );
return NULL;
}
// start the new manager
pAigNew = Aig_ManStart( Aig_ManNodeNum(pAig) );
pAigNew->pName = Aig_UtilStrsav( pAig->pName );
pAigNew->nConstrs = pAig->nConstrs;
// map the constant node
Aig_ManConst1(pAig)->pData = Aig_ManConst1( pAigNew );
// create variables for PIs
Aig_ManForEachPi( pAig, pObj, i )
pObj->pData = Aig_ObjCreatePi( pAigNew );
// add internal nodes of this frame
Aig_ManForEachNode( pAig, pObj, i )
pObj->pData = Aig_And( pAigNew, Aig_ObjChild0Copy(pObj), Aig_ObjChild1Copy(pObj) );
// create POs
assert( Vec_IntSize(vPairs) % 2 == 0 );
Aig_ManForEachNodeVec( pAig, vPairs, pObj, i )
{
pObj2 = Aig_ManObj( pAig, Vec_IntEntry(vPairs, ++i) );
pMiter = Aig_Exor( pAigNew, (Aig_Obj_t *)pObj->pData, (Aig_Obj_t *)pObj2->pData );
pMiter = Aig_NotCond( pMiter, pObj->fPhase ^ pObj2->fPhase );
Aig_ObjCreatePo( pAigNew, pMiter );
}
/**Function*************************************************************
Synopsis [Computes the care set of the node under ODCs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Obj_t * Abc_NtkConstructAig_rec( Mfs_Man_t * p, Abc_Obj_t * pNode, Aig_Man_t * pMan )
{
Aig_Obj_t * pRoot, * pExor;
Abc_Obj_t * pObj;
int i;
// assign AIG nodes to the leaves
Vec_PtrForEachEntry( Abc_Obj_t *, p->vSupp, pObj, i )
pObj->pCopy = pObj->pNext = (Abc_Obj_t *)Aig_ObjCreatePi( pMan );
// strash intermediate nodes
Abc_NtkIncrementTravId( pNode->pNtk );
Vec_PtrForEachEntry( Abc_Obj_t *, p->vNodes, pObj, i )
{
Abc_MfsConvertHopToAig( pObj, pMan );
if ( pObj == pNode )
pObj->pNext = Abc_ObjNot(pObj->pNext);
}
// create the observability condition
pRoot = Aig_ManConst0(pMan);
Vec_PtrForEachEntry( Abc_Obj_t *, p->vRoots, pObj, i )
{
pExor = Aig_Exor( pMan, (Aig_Obj_t *)pObj->pCopy, (Aig_Obj_t *)pObj->pNext );
pRoot = Aig_Or( pMan, pRoot, pExor );
}
return pRoot;
}
/**Function*************************************************************
Synopsis [Should be called after each equality check.]
Description [Result should be 1 if they are equal.]
SideEffects []
SeeAlso []
***********************************************************************/
void Cudd2_bddEqual( void * pCudd, void * pArg0, void * pArg1, int Result )
{
Aig_Obj_t * pNode0, * pNode1, * pNode;
pNode0 = Cudd2_GetArg( pArg0 );
pNode1 = Cudd2_GetArg( pArg1 );
pNode = Aig_Exor( s_pCuddMan->pAig, pNode0, pNode1 );
Aig_ObjCreatePo( s_pCuddMan->pAig, pNode );
}
/**Function*************************************************************
Synopsis [Performs BDD operation.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Cudd2_bddXor( void * pCudd, void * pArg0, void * pArg1, void * pResult )
{
Aig_Obj_t * pNode0, * pNode1, * pNode;
pNode0 = Cudd2_GetArg( pArg0 );
pNode1 = Cudd2_GetArg( pArg1 );
pNode = Aig_Exor( s_pCuddMan->pAig, pNode0, pNode1 );
Cudd2_SetArg( pNode, pResult );
}
/**Function*************************************************************
Synopsis [Perform one operation.]
Description [The argument nodes can be complemented.]
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Obj_t * Aig_Oper( Aig_Man_t * p, Aig_Obj_t * p0, Aig_Obj_t * p1, Aig_Type_t Type )
{
if ( Type == AIG_OBJ_AND )
return Aig_And( p, p0, p1 );
if ( Type == AIG_OBJ_EXOR )
return Aig_Exor( p, p0, p1 );
assert( 0 );
return NULL;
}
/**Function*************************************************************
Synopsis [Creates AND function with nVars inputs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Obj_t * Aig_CreateExor( Aig_Man_t * p, int nVars )
{
Aig_Obj_t * pFunc;
int i;
pFunc = Aig_ManConst0( p );
for ( i = 0; i < nVars; i++ )
pFunc = Aig_Exor( p, pFunc, Aig_IthVar(p, i) );
return pFunc;
}
/**Function*************************************************************
Synopsis [Implements the miter.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Obj_t * Aig_MiterTwo( Aig_Man_t * p, Vec_Ptr_t * vNodes1, Vec_Ptr_t * vNodes2 )
{
int i;
assert( vNodes1->nSize > 0 && vNodes1->nSize > 0 );
assert( vNodes1->nSize == vNodes2->nSize );
for ( i = 0; i < vNodes1->nSize; i++ )
vNodes1->pArray[i] = Aig_Not( Aig_Exor( p, vNodes1->pArray[i], vNodes2->pArray[i] ) );
return Aig_Not( Aig_Multi_rec( p, (Aig_Obj_t **)vNodes1->pArray, vNodes1->nSize, AIG_OBJ_AND ) );
}
/**Function*************************************************************
Synopsis [Implements the miter.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Aig_Obj_t * Aig_Miter( Aig_Man_t * p, Vec_Ptr_t * vPairs )
{
int i;
assert( vPairs->nSize > 0 );
assert( vPairs->nSize % 2 == 0 );
for ( i = 0; i < vPairs->nSize; i += 2 )
vPairs->pArray[i/2] = Aig_Not( Aig_Exor( p, vPairs->pArray[i], vPairs->pArray[i+1] ) );
vPairs->nSize = vPairs->nSize/2;
return Aig_Not( Aig_Multi_rec( p, (Aig_Obj_t **)vPairs->pArray, vPairs->nSize, AIG_OBJ_AND ) );
}
