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Integrating input driving cell constraint into buffering/sizing.

This commit is contained in:
Alan Mishchenko 2013-09-17 23:00:59 -07:00
parent efa6b54b5e
commit 3d8dc1217c
4 changed files with 26 additions and 3 deletions
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3
src/map/scl/sclDnsize.c
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@ -53,7 +53,8 @@ void Abc_SclFindWindow( Abc_Obj_t * pPivot, Vec_Int_t ** pvNodes, Vec_Int_t ** p
// collect fanins, node, and fanouts
Vec_IntClear( vNodes );
Abc_ObjForEachFanin( pPivot, pNext, i )
if ( Abc_ObjIsNode(pNext) && Abc_ObjFaninNum(pNext) > 0 )
// if ( Abc_ObjIsNode(pNext) && Abc_ObjFaninNum(pNext) > 0 )
if ( Abc_ObjIsCi(pNext) || Abc_ObjFaninNum(pNext) > 0 )
Vec_IntPush( vNodes, Abc_ObjId(pNext) );
Vec_IntPush( vNodes, Abc_ObjId(pPivot) );
Abc_ObjForEachFanout( pPivot, pNext, i )

21
src/map/scl/sclSize.c
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@ -225,6 +225,16 @@ static inline float Abc_SclObjLoadValue( SC_Man * p, Abc_Obj_t * pObj )
// float Value = Abc_MaxFloat(pLoad->fall, pLoad->rise) / (p->EstLoadAve * p->EstLoadMax);
return (0.5 * Abc_SclObjLoad(p, pObj)->fall + 0.5 * Abc_SclObjLoad(p, pObj)->rise) / (p->EstLoadAve * p->EstLoadMax);
}
static inline void Abc_SclTimeCi( SC_Man * p, Abc_Obj_t * pObj )
{
if ( p->pPiDrive != NULL )
{
SC_Pair * pLoad = Abc_SclObjLoad( p, pObj );
SC_Pair * pTime = Abc_SclObjTime( p, pObj );
SC_Pair * pSlew = Abc_SclObjSlew( p, pObj );
Scl_LibHandleInputDriver( p->pPiDrive, pLoad, pTime, pSlew );
}
}
void Abc_SclTimeNode( SC_Man * p, Abc_Obj_t * pObj, int fDept )
{
SC_Timing * pTime;
@ -237,6 +247,12 @@ void Abc_SclTimeNode( SC_Man * p, Abc_Obj_t * pObj, int fDept )
float DeptFall = 0;
float Value = p->EstLoadMax ? Abc_SclObjLoadValue( p, pObj ) : 0;
Abc_Obj_t * pFanin;
if ( Abc_ObjIsCi(pObj) )
{
assert( !fDept );
Abc_SclTimeCi( p, pObj );
return;
}
if ( Abc_ObjIsCo(pObj) )
{
if ( !fDept )
@ -319,6 +335,8 @@ void Abc_SclTimeNtkRecompute( SC_Man * p, float * pArea, float * pDelay, int fRe
Abc_SclComputeLoad( p );
Abc_SclManCleanTime( p );
p->nEstNodes = 0;
Abc_NtkForEachCi( p->pNtk, pObj, i )
Abc_SclTimeNode( p, pObj, 0 );
Abc_NtkForEachNode1( p->pNtk, pObj, i )
Abc_SclTimeNode( p, pObj, 0 );
Abc_NtkForEachCo( p->pNtk, pObj, i )
@ -376,7 +394,8 @@ static inline void Abc_SclTimeIncAddFanins( SC_Man * p, Abc_Obj_t * pObj )
Abc_Obj_t * pFanin;
int i;
Abc_ObjForEachFanin( pObj, pFanin, i )
if ( !pFanin->fMarkC && Abc_ObjIsNode(pFanin) )
// if ( !pFanin->fMarkC && Abc_ObjIsNode(pFanin) )
if ( !pFanin->fMarkC )
Abc_SclTimeIncAddNode( p, pFanin );
}
static inline void Abc_SclTimeIncAddFanouts( SC_Man * p, Abc_Obj_t * pObj )

2
src/map/scl/sclSize.h
View File

@ -256,6 +256,7 @@ static inline void Abc_SclManCleanTime( SC_Man * p )
memset( p->pTimes, 0, sizeof(SC_Pair) * p->nObjs );
memset( p->pSlews, 0, sizeof(SC_Pair) * p->nObjs );
memset( p->pDepts, 0, sizeof(SC_Pair) * p->nObjs );
/*
if ( p->pPiDrive != NULL )
{
SC_Pair * pSlew, * pTime, * pLoad;
@ -269,6 +270,7 @@ static inline void Abc_SclManCleanTime( SC_Man * p )
Scl_LibHandleInputDriver( p->pPiDrive, pLoad, pTime, pSlew );
}
}
*/
}

3
src/map/scl/sclUpsize.c
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@ -222,7 +222,8 @@ void Abc_SclFindNodesToUpdate( Abc_Obj_t * pPivot, Vec_Int_t ** pvNodes, Vec_Int
// collect fanins, node, and fanouts
Vec_IntClear( vNodes );
Abc_ObjForEachFanin( pPivot, pNext, i )
if ( Abc_ObjIsNode(pNext) && Abc_ObjFaninNum(pNext) > 0 )
// if ( Abc_ObjIsNode(pNext) && Abc_ObjFaninNum(pNext) > 0 )
if ( Abc_ObjIsCi(pNext) || Abc_ObjFaninNum(pNext) > 0 )
Vec_IntPush( vNodes, Abc_ObjId(pNext) );
Vec_IntPush( vNodes, Abc_ObjId(pPivot) );
if ( pExtra )