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-rw-r--r--src/base/abc/abc.h1
-rw-r--r--src/base/abci/abcTiming.c4
-rw-r--r--src/map/scl/sclInt.h1
-rw-r--r--src/map/scl/sclLoad.c11
-rw-r--r--src/map/scl/sclMan.h17
-rw-r--r--src/map/scl/sclTime.c71
6 files changed, 99 insertions, 6 deletions
diff --git a/src/base/abc/abc.h b/src/base/abc/abc.h
index ffe3abd5..ab8bd646 100644
--- a/src/base/abc/abc.h
+++ b/src/base/abc/abc.h
@@ -113,7 +113,6 @@ typedef enum {
typedef struct Abc_Lib_t_ Abc_Lib_t;
typedef struct Abc_Ntk_t_ Abc_Ntk_t;
-struct Abc_Obj_t_;
typedef struct Abc_Obj_t_ Abc_Obj_t;
typedef struct Abc_Aig_t_ Abc_Aig_t;
typedef struct Abc_ManTime_t_ Abc_ManTime_t;
diff --git a/src/base/abci/abcTiming.c b/src/base/abci/abcTiming.c
index 3df500cd..4de117a0 100644
--- a/src/base/abci/abcTiming.c
+++ b/src/base/abci/abcTiming.c
@@ -125,12 +125,12 @@ Abc_Time_t * Abc_NtkReadDefaultOutputLoad( Abc_Ntk_t * pNtk )
Abc_Time_t * Abc_NodeReadInputDrive( Abc_Ntk_t * pNtk, int iPi )
{
assert( pNtk->pManTime );
- return pNtk->pManTime->tInDrive + iPi;
+ return pNtk->pManTime->tInDrive ? pNtk->pManTime->tInDrive + iPi : NULL;
}
Abc_Time_t * Abc_NodeReadOutputLoad( Abc_Ntk_t * pNtk, int iPo )
{
assert( pNtk->pManTime );
- return pNtk->pManTime->tOutLoad + iPo;
+ return pNtk->pManTime->tOutLoad ? pNtk->pManTime->tOutLoad + iPo : NULL;
}
float Abc_NodeReadInputDriveWorst( Abc_Ntk_t * pNtk, int iPi )
{
diff --git a/src/map/scl/sclInt.h b/src/map/scl/sclInt.h
index 79474def..6aa353da 100644
--- a/src/map/scl/sclInt.h
+++ b/src/map/scl/sclInt.h
@@ -229,6 +229,7 @@ static inline SC_Pin * SC_CellPin( SC_Cell * p, int i ) { return (SC
static inline Vec_Wrd_t * SC_CellFunc( SC_Cell * p ) { return SC_CellPin(p, p->n_inputs)->vFunc; }
static inline double SC_LibCapFf( SC_Lib * p, double cap ) { return cap * p->unit_cap_fst * pow(10.0, 15 - p->unit_cap_snd); }
+static inline double SC_LibCapFromFf( SC_Lib * p, double cap ) { return cap / p->unit_cap_fst / pow(10.0, 15 - p->unit_cap_snd); }
static inline double SC_LibTimePs( SC_Lib * p, double time ) { return time * pow(10.0, 12 - p->unit_time); }
static inline double SC_LibTimeFromPs( SC_Lib * p, double ps ) { return ps / pow(10.0, 12 - p->unit_time); }
diff --git a/src/map/scl/sclLoad.c b/src/map/scl/sclLoad.c
index fc48aa82..f9768b8f 100644
--- a/src/map/scl/sclLoad.c
+++ b/src/map/scl/sclLoad.c
@@ -146,7 +146,8 @@ void Abc_SclComputeLoad( SC_Man * p )
Abc_NtkForEachObj( p->pNtk, pObj, i )
{
SC_Pair * pLoad = Abc_SclObjLoad( p, pObj );
- pLoad->rise = pLoad->fall = 0.0;
+ if ( !Abc_ObjIsPo(pObj) )
+ pLoad->rise = pLoad->fall = 0.0;
}
// add cell load
Abc_NtkForEachNode1( p->pNtk, pObj, i )
@@ -160,6 +161,14 @@ void Abc_SclComputeLoad( SC_Man * p )
pLoad->fall += pPin->fall_cap;
}
}
+ // add PO load
+ Abc_NtkForEachPo( p->pNtk, pObj, i )
+ {
+ SC_Pair * pLoadPo = Abc_SclObjLoad( p, pObj );
+ SC_Pair * pLoad = Abc_SclObjLoad( p, Abc_ObjFanin0(pObj) );
+ pLoad->rise += pLoadPo->rise;
+ pLoad->fall += pLoadPo->fall;
+ }
if ( p->pWLoadUsed == NULL )
return;
// add wire load
diff --git a/src/map/scl/sclMan.h b/src/map/scl/sclMan.h
index 495c2b34..a6bdd806 100644
--- a/src/map/scl/sclMan.h
+++ b/src/map/scl/sclMan.h
@@ -193,9 +193,26 @@ static inline void Abc_SclManFree( SC_Man * p )
}
static inline void Abc_SclManCleanTime( SC_Man * p )
{
+ Vec_Flt_t * vSlews;
+ Abc_Obj_t * pObj;
+ int i;
+ vSlews = Vec_FltAlloc( 2 * Abc_NtkPiNum(p->pNtk) );
+ Abc_NtkForEachPi( p->pNtk, pObj, i )
+ {
+ SC_Pair * pSlew = Abc_SclObjSlew( p, pObj );
+ Vec_FltPush( vSlews, pSlew->rise );
+ Vec_FltPush( vSlews, pSlew->fall );
+ }
memset( p->pDepts, 0, sizeof(SC_Pair) * p->nObjs );
memset( p->pTimes, 0, sizeof(SC_Pair) * p->nObjs );
memset( p->pSlews, 0, sizeof(SC_Pair) * p->nObjs );
+ Abc_NtkForEachPi( p->pNtk, pObj, i )
+ {
+ SC_Pair * pSlew = Abc_SclObjSlew( p, pObj );
+ pSlew->rise = Vec_FltEntry( vSlews, 2 * i + 0 );
+ pSlew->fall = Vec_FltEntry( vSlews, 2 * i + 1 );
+ }
+ Vec_FltFree( vSlews );
}
diff --git a/src/map/scl/sclTime.c b/src/map/scl/sclTime.c
index dfb2032b..96c9fec9 100644
--- a/src/map/scl/sclTime.c
+++ b/src/map/scl/sclTime.c
@@ -111,7 +111,7 @@ static inline void Abc_SclTimeNodePrint( SC_Man * p, Abc_Obj_t * pObj, int fRise
printf( "%7d : ", Abc_ObjId(pObj) );
printf( "%d ", Abc_ObjFaninNum(pObj) );
printf( "%2d ", Abc_ObjFanoutNum(pObj) );
- printf( "%-*s ", Length, Abc_SclObjCell(p, pObj)->pName );
+ printf( "%-*s ", Length, Abc_ObjIsPi(pObj) ? "pi" : Abc_SclObjCell(p, pObj)->pName );
if ( fRise >= 0 )
printf( "(%s) ", fRise ? "rise" : "fall" );
printf( "delay = (" );
@@ -161,7 +161,7 @@ void Abc_SclTimeNtkPrint( SC_Man * p, int fShowAll, int fShort )
}
// print timing
pObj = Abc_ObjFanin0(pPivot);
- while ( pObj && Abc_ObjIsNode(pObj) )
+ while ( pObj )//&& Abc_ObjIsNode(pObj) )
{
printf( "C-path %3d -- ", i-- );
Abc_SclTimeNodePrint( p, pObj, fRise, nLength, maxDelay );
@@ -334,6 +334,72 @@ void Abc_SclTimeNtkRecompute( SC_Man * p, float * pArea, float * pDelay, int fRe
/**Function*************************************************************
+ Synopsis [Read input slew and output load.]
+
+ Description []
+
+ SideEffects []
+
+ SeeAlso []
+
+***********************************************************************/
+void Abc_SclManReadSlewAndLoad( SC_Man * p, Abc_Ntk_t * pNtk )
+{
+ Abc_Time_t * pTime;
+ Abc_Obj_t * pObj;
+ int i;
+ if ( pNtk->pManTime == NULL )
+ return;
+ // read input slew
+ pTime = Abc_NtkReadDefaultInputDrive( pNtk );
+ if ( Abc_MaxFloat(pTime->Rise, pTime->Fall) != 0 )
+ {
+ printf( "Default input slew is specified (%.2f ps; %.2f ps).\n", pTime->Rise, pTime->Fall );
+ Abc_NtkForEachPi( pNtk, pObj, i )
+ {
+ SC_Pair * pSlew = Abc_SclObjSlew( p, pObj );
+ pSlew->rise = SC_LibTimeFromPs( p->pLib, pTime->Rise );
+ pSlew->fall = SC_LibTimeFromPs( p->pLib, pTime->Fall );
+ }
+ }
+ if ( Abc_NodeReadInputDrive(pNtk, 0) != NULL )
+ {
+ printf( "Input slews for some primary inputs are specified.\n" );
+ Abc_NtkForEachPi( pNtk, pObj, i )
+ {
+ SC_Pair * pSlew = Abc_SclObjSlew( p, pObj );
+ pTime = Abc_NodeReadInputDrive(pNtk, i);
+ pSlew->rise = SC_LibTimeFromPs( p->pLib, pTime->Rise );
+ pSlew->fall = SC_LibTimeFromPs( p->pLib, pTime->Fall );
+ }
+ }
+ // read output load
+ pTime = Abc_NtkReadDefaultOutputLoad( pNtk );
+ if ( Abc_MaxFloat(pTime->Rise, pTime->Fall) != 0 )
+ {
+ printf( "Default output load is specified (%.2f ff; %.2f ff).\n", pTime->Rise, pTime->Fall );
+ Abc_NtkForEachPo( pNtk, pObj, i )
+ {
+ SC_Pair * pSlew = Abc_SclObjLoad( p, pObj );
+ pSlew->rise = SC_LibCapFromFf( p->pLib, pTime->Rise );
+ pSlew->fall = SC_LibCapFromFf( p->pLib, pTime->Fall );
+ }
+ }
+ if ( Abc_NodeReadOutputLoad(pNtk, 0) != NULL )
+ {
+ printf( "Output loads for some primary outputs are specified.\n" );
+ Abc_NtkForEachPo( pNtk, pObj, i )
+ {
+ SC_Pair * pSlew = Abc_SclObjLoad( p, pObj );
+ pTime = Abc_NodeReadOutputLoad(pNtk, i);
+ pSlew->rise = SC_LibCapFromFf( p->pLib, pTime->Rise );
+ pSlew->fall = SC_LibCapFromFf( p->pLib, pTime->Fall );
+ }
+ }
+}
+
+/**Function*************************************************************
+
Synopsis [Prepare timing manager.]
Description []
@@ -348,6 +414,7 @@ SC_Man * Abc_SclManStart( SC_Lib * pLib, Abc_Ntk_t * pNtk, int fUseWireLoads, in
SC_Man * p = Abc_SclManAlloc( pLib, pNtk );
assert( p->vGates == NULL );
p->vGates = Abc_SclManFindGates( pLib, pNtk );
+ Abc_SclManReadSlewAndLoad( p, pNtk );
if ( fUseWireLoads )
p->pWLoadUsed = Abc_SclFindWireLoadModel( pLib, Abc_SclGetTotalArea(p) );
Abc_SclTimeNtkRecompute( p, &p->SumArea0, &p->MaxDelay0, fDept, DUser );
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-08 23:16:00 +0000