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/**CFile****************************************************************
FileName [timTime.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Hierarchy/timing manager.]
Synopsis [Setting and resetting timing information of the boxes.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - April 28, 2007.]
Revision [$Id: timTime.c,v 1.00 2007/04/28 00:00:00 alanmi Exp $]
***********************************************************************/
#include "timInt.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Initializes arrival time of the PI.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Tim_ManInitPiArrival( Tim_Man_t * p, int iPi, float Delay )
{
assert( iPi < p->nCis );
p->pCis[iPi].timeArr = Delay;
}
/**Function*************************************************************
Synopsis [Initializes required time of the PO.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Tim_ManInitPoRequired( Tim_Man_t * p, int iPo, float Delay )
{
assert( iPo < p->nCos );
p->pCos[iPo].timeReq = Delay;
}
/**Function*************************************************************
Synopsis [Sets arrival times of all PIs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Tim_ManInitPiArrivalAll( Tim_Man_t * p, float Delay )
{
Tim_Obj_t * pObj;
int i;
Tim_ManForEachPi( p, pObj, i )
Tim_ManInitPiArrival( p, i, Delay );
}
/**Function*************************************************************
Synopsis [Sets required times of all POs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Tim_ManInitPoRequiredAll( Tim_Man_t * p, float Delay )
{
Tim_Obj_t * pObj;
int i;
Tim_ManForEachPo( p, pObj, i )
Tim_ManSetCoRequired( p, i, Delay );
}
/**Function*************************************************************
Synopsis [Updates arrival time of the CO.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Tim_ManSetCoArrival( Tim_Man_t * p, int iCo, float Delay )
{
assert( iCo < p->nCos );
assert( !p->fUseTravId || p->pCos[iCo].TravId != p->nTravIds );
p->pCos[iCo].timeArr = Delay;
p->pCos[iCo].TravId = p->nTravIds;
}
/**Function*************************************************************
Synopsis [Updates required time of the CI.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Tim_ManSetCiRequired( Tim_Man_t * p, int iCi, float Delay )
{
assert( iCi < p->nCis );
assert( !p->fUseTravId || p->pCis[iCi].TravId != p->nTravIds );
p->pCis[iCi].timeReq = Delay;
p->pCis[iCi].TravId = p->nTravIds;
}
/**Function*************************************************************
Synopsis [Updates required time of the CO.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Tim_ManSetCoRequired( Tim_Man_t * p, int iCo, float Delay )
{
assert( iCo < p->nCos );
assert( !p->fUseTravId || !p->nTravIds || p->pCos[iCo].TravId != p->nTravIds );
p->pCos[iCo].timeReq = Delay;
p->pCos[iCo].TravId = p->nTravIds;
}
/**Function*************************************************************
Synopsis [Returns CO arrival time.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
float Tim_ManGetCiArrival( Tim_Man_t * p, int iCi )
{
Tim_Box_t * pBox;
Tim_Obj_t * pObjThis, * pObj, * pObjRes;
float * pTable, * pDelays, DelayBest;
int i, k;
// consider the already processed PI
pObjThis = Tim_ManCi( p, iCi );
if ( p->fUseTravId && pObjThis->TravId == p->nTravIds )
return pObjThis->timeArr;
pObjThis->TravId = p->nTravIds;
// consider the main PI
pBox = Tim_ManCiBox( p, iCi );
if ( pBox == NULL )
return pObjThis->timeArr;
// update box timing
pBox->TravId = p->nTravIds;
// get the arrival times of the inputs of the box (POs)
if ( p->fUseTravId )
Tim_ManBoxForEachInput( p, pBox, pObj, i )
if ( pObj->TravId != p->nTravIds )
printf( "Tim_ManGetCiArrival(): Input arrival times of the box are not up to date!\n" );
// compute the arrival times for each output of the box (PIs)
pTable = Tim_ManBoxDelayTable( p, pBox->iBox );
Tim_ManBoxForEachOutput( p, pBox, pObjRes, i )
{
pDelays = pTable + 3 + i * pBox->nInputs;
DelayBest = -TIM_ETERNITY;
Tim_ManBoxForEachInput( p, pBox, pObj, k )
if ( pDelays[k] != -ABC_INFINITY )
DelayBest = Abc_MaxInt( DelayBest, pObj->timeArr + pDelays[k] );
pObjRes->timeArr = DelayBest;
pObjRes->TravId = p->nTravIds;
}
return pObjThis->timeArr;
}
/**Function*************************************************************
Synopsis [Returns CO required time.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
float Tim_ManGetCoRequired( Tim_Man_t * p, int iCo )
{
Tim_Box_t * pBox;
Tim_Obj_t * pObjThis, * pObj, * pObjRes;
float * pTable, * pDelays, DelayBest;
int i, k;
// consider the already processed PO
pObjThis = Tim_ManCo( p, iCo );
if ( p->fUseTravId && pObjThis->TravId == p->nTravIds )
return pObjThis->timeReq;
pObjThis->TravId = p->nTravIds;
// consider the main PO
pBox = Tim_ManCoBox( p, iCo );
if ( pBox == NULL )
return pObjThis->timeReq;
// update box timing
pBox->TravId = p->nTravIds;
// get the required times of the outputs of the box (PIs)
if ( p->fUseTravId )
Tim_ManBoxForEachOutput( p, pBox, pObj, i )
if ( pObj->TravId != p->nTravIds )
printf( "Tim_ManGetCoRequired(): Output required times of output %d the box %d are not up to date!\n", i, pBox->iBox );
// compute the required times for each input of the box (POs)
pTable = Tim_ManBoxDelayTable( p, pBox->iBox );
Tim_ManBoxForEachInput( p, pBox, pObjRes, i )
{
DelayBest = TIM_ETERNITY;
Tim_ManBoxForEachOutput( p, pBox, pObj, k )
{
pDelays = pTable + 3 + k * pBox->nInputs;
if ( pDelays[k] != -ABC_INFINITY )
DelayBest = Abc_MinFloat( DelayBest, pObj->timeReq - pDelays[i] );
}
pObjRes->timeReq = DelayBest;
pObjRes->TravId = p->nTravIds;
}
return pObjThis->timeReq;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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