/**Function*************************************************************
Synopsis [Cycles the circuit to create a new initial state.]
Description [Simulates the circuit with random input for the given
number of timeframes to get a better initial state.]
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Ptr_t * Aig_ManTernarySimulate( Aig_Man_t * p, int fVerbose )
{
Aig_Tsi_t * pTsi;
Vec_Ptr_t * vMap;
Aig_Obj_t * pObj, * pObjLi, * pObjLo;
unsigned * pState, * pPrev;
int i, k, f, fConstants, Value, nCounter;
// allocate the simulation manager
pTsi = Aig_TsiStart( p );
// initialize the values
Aig_ObjSetXsim( Aig_ManConst1(p), AIG_XVS1 );
Aig_ManForEachPiSeq( p, pObj, i )
Aig_ObjSetXsim( pObj, AIG_XVSX );
Aig_ManForEachLoSeq( p, pObj, i )
Aig_ObjSetXsim( pObj, AIG_XVS0 );
// simulate for the given number of timeframes
for ( f = 0; f < TSI_MAX_ROUNDS; f++ )
{
// collect this state
pState = Aig_TsiStateNew( pTsi );
Aig_ManForEachLiLoSeq( p, pObjLi, pObjLo, i )
{
Value = Aig_ObjGetXsim(pObjLo);
if ( Value & 1 )
Aig_InfoSetBit( pState, 2 * i );
if ( Value & 2 )
Aig_InfoSetBit( pState, 2 * i + 1 );
}
// Aig_TsiStatePrint( pTsi, pState );
// check if this state exists
if ( Aig_TsiStateLookup( pTsi, pState, pTsi->nWords ) )
break;
// insert this state
Aig_TsiStateInsert( pTsi, pState, pTsi->nWords );
// simulate internal nodes
Aig_ManForEachNode( p, pObj, i )
Aig_ObjSetXsim( pObj, Aig_XsimAnd(Aig_ObjGetXsimFanin0(pObj), Aig_ObjGetXsimFanin1(pObj)) );
// transfer the latch values
Aig_ManForEachLiSeq( p, pObj, i )
Aig_ObjSetXsim( pObj, Aig_ObjGetXsimFanin0(pObj) );
Aig_ManForEachLiLoSeq( p, pObjLi, pObjLo, i )
Aig_ObjSetXsim( pObjLo, Aig_ObjGetXsim(pObjLi) );
}
Aig_Man_t * Saig_ManCreateIndMiter2( Aig_Man_t * pAig, Vec_Vec_t * vCands )
{
int nFrames = 3;
Vec_Ptr_t * vNodes;
Aig_Man_t * pFrames;
Aig_Obj_t * pObj, * pObjLi, * pObjLo, * pObjNew;
Aig_Obj_t ** pObjMap;
int i, f, k;
// create mapping for the frames nodes
pObjMap = ABC_CALLOC( Aig_Obj_t *, nFrames * Aig_ManObjNumMax(pAig) );
// start the fraig package
pFrames = Aig_ManStart( Aig_ManObjNumMax(pAig) * nFrames );
pFrames->pName = Abc_UtilStrsav( pAig->pName );
pFrames->pSpec = Abc_UtilStrsav( pAig->pSpec );
// map constant nodes
for ( f = 0; f < nFrames; f++ )
Aig_ObjSetFrames( pObjMap, nFrames, Aig_ManConst1(pAig), f, Aig_ManConst1(pFrames) );
// create PI nodes for the frames
for ( f = 0; f < nFrames; f++ )
Aig_ManForEachPiSeq( pAig, pObj, i )
Aig_ObjSetFrames( pObjMap, nFrames, pObj, f, Aig_ObjCreateCi(pFrames) );
// set initial state for the latches
Aig_ManForEachLoSeq( pAig, pObj, i )
Aig_ObjSetFrames( pObjMap, nFrames, pObj, 0, Aig_ObjCreateCi(pFrames) );
// add timeframes
for ( f = 0; f < nFrames; f++ )
{
// add internal nodes of this frame
Aig_ManForEachNode( pAig, pObj, i )
{
pObjNew = Aig_And( pFrames, Aig_ObjChild0Frames(pObjMap,nFrames,pObj,f), Aig_ObjChild1Frames(pObjMap,nFrames,pObj,f) );
Aig_ObjSetFrames( pObjMap, nFrames, pObj, f, pObjNew );
}
// set the latch inputs and copy them into the latch outputs of the next frame
Aig_ManForEachLiLoSeq( pAig, pObjLi, pObjLo, i )
{
pObjNew = Aig_ObjChild0Frames(pObjMap,nFrames,pObjLi,f);
if ( f < nFrames - 1 )
Aig_ObjSetFrames( pObjMap, nFrames, pObjLo, f+1, pObjNew );
}
