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Version abc51127

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This commit is contained in:
Alan Mishchenko
2005-11-27 08:01:00 -08:00
parent e3c40ed61e
commit 3a1ca9fa0e
22 changed files with 1022 additions and 783 deletions
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src/base/seq/seqRetIter.c
+24 -7
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@@ -76,7 +76,7 @@ void Seq_NtkRetimeDelayLags( Abc_Ntk_t * pNtkOld, Abc_Ntk_t * pNtk, int fVerbose
}
}
// get the upper bound on the clock period
FiMax = Delta * (2 + Seq_NtkLevelMax(pNtk));
FiMax = Delta * 2 + Abc_NtkDelayTrace(pNtkOld);
Delta /= 2;
}
else
@@ -95,14 +95,24 @@ void Seq_NtkRetimeDelayLags( Abc_Ntk_t * pNtkOld, Abc_Ntk_t * pNtk, int fVerbose
RetValue = Seq_NtkMappingForPeriod( pNtk, FiBest, fVerbose );
assert( RetValue );
// write the retiming lags for both phases of each node
// experiment by adding an epsilon to all LValues
// Vec_PtrForEachEntry( p->vMapAnds, pNode, i )
// Seq_NodeSetLValueP( pNode, Seq_NodeGetLValueP(pNode) - p->fEpsilon );
// save the retiming lags
// mark the nodes
Vec_PtrForEachEntry( p->vMapAnds, pNode, i )
pNode->fMarkA = 1;
// process the nodes
Vec_StrFill( p->vLags, p->nSize, 0 );
Vec_PtrForEachEntry( p->vMapAnds, pNode, i )
{
NodeLag = Seq_NodeComputeLagFloat( Seq_NodeGetLValueP(pNode), FiBest );
// Seq_NodeSetLag( pNode, NodeLag );
Seq_NodeRetimeSetLag_rec( pNode, NodeLag );
}
// unmark the nodes
Vec_PtrForEachEntry( p->vMapAnds, pNode, i )
pNode->fMarkA = 0;
// print the result
if ( fVerbose )
@@ -153,7 +163,7 @@ int Seq_NtkMappingForPeriod( Abc_Ntk_t * pNtk, float Fi, int fVerbose )
char * pReason = "";
// set l-values of all nodes to be minus infinity
Vec_IntFill( p->vLValues, p->nSize, -ABC_INFINITY );
Vec_IntFill( p->vLValues, p->nSize, Abc_Float2Int( (float)-ABC_INFINITY ) );
// set l-values of constants and PIs
pObj = Abc_NtkObj( pNtk, 0 );
@@ -268,11 +278,18 @@ int Seq_NtkNodeUpdateLValue( Abc_Obj_t * pObj, float Fi, Vec_Ptr_t * vLeaves, Ve
***********************************************************************/
void Seq_NodeRetimeSetLag_rec( Abc_Obj_t * pNode, char Lag )
{
if ( pNode->pCopy )
Abc_Obj_t * pFanin;
if ( !Abc_NodeIsAigAnd(pNode) )
return;
Seq_NodeRetimeSetLag_rec( Abc_ObjFanin0(pNode), Lag );
Seq_NodeRetimeSetLag_rec( Abc_ObjFanin1(pNode), Lag );
Seq_NodeSetLag( pNode, Lag );
// consider the first fanin
pFanin = Abc_ObjFanin0(pNode);
if ( pFanin->fMarkA == 0 ) // internal node
Seq_NodeRetimeSetLag_rec( pFanin, Lag );
// consider the second fanin
pFanin = Abc_ObjFanin1(pNode);
if ( pFanin->fMarkA == 0 ) // internal node
Seq_NodeRetimeSetLag_rec( pFanin, Lag );
}