From 1692c1a57a74938a396812375f29f0065b5337b7 Mon Sep 17 00:00:00 2001
From: Alan Mishchenko <alanmi@berkeley.edu>
Date: Sun, 13 Oct 2013 23:08:52 -0700
Subject: Improvements to buffering and sizing.

---
 src/map/scl/scl.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

(limited to 'src/map/scl/scl.c')

diff --git a/src/map/scl/scl.c b/src/map/scl/scl.c
index 1c5e3354..36bec7b4 100644
--- a/src/map/scl/scl.c
+++ b/src/map/scl/scl.c
@@ -308,7 +308,7 @@ usage:
 ***********************************************************************/
 int Scl_CommandPrintLib( Abc_Frame_t * pAbc, int argc, char **argv )
 {
-    float Slew = 200;
+    float Slew = 0; // use library
     float Gain = 100;
     int fInvOnly = 0;
     int fShort = 0;
@@ -512,8 +512,8 @@ usage:
 int Scl_CommandDumpGen( Abc_Frame_t * pAbc, int argc, char **argv )
 {
     char * pFileName = NULL;
-    float Slew = 200;
-    float Gain = 100;
+    float Slew = 0; // use the library
+    float Gain = 200;
     int nGatesMin = 4;
     int c, fVerbose = 0;
     Extra_UtilGetoptReset();
@@ -871,8 +871,8 @@ int Scl_CommandBuffer( Abc_Frame_t * pAbc, int argc, char ** argv )
     Abc_Ntk_t * pNtkRes, * pNtk = Abc_FrameReadNtk(pAbc);
     int c;
     memset( pPars, 0, sizeof(SC_BusPars) );
-    pPars->GainRatio     = 1000;
-    pPars->Slew          =  100;
+    pPars->GainRatio     =  250;
+    pPars->Slew          = pAbc->pLibScl ? Abc_SclComputeAverageSlew((SC_Lib *)pAbc->pLibScl) : 100;
     pPars->nDegree       =   10;
     pPars->fSizeOnly     =    0;
     pPars->fAddBufs      =    1;
@@ -881,7 +881,7 @@ int Scl_CommandBuffer( Abc_Frame_t * pAbc, int argc, char ** argv )
     pPars->fVerbose      =    0;
     pPars->fVeryVerbose  =    0;
     Extra_UtilGetoptReset();
-    while ( ( c = Extra_UtilGetopt( argc, argv, "GSDsbpcvwh" ) ) != EOF )
+    while ( ( c = Extra_UtilGetopt( argc, argv, "GSNsbpcvwh" ) ) != EOF )
     {
         switch ( c )
         {
@@ -907,7 +907,7 @@ int Scl_CommandBuffer( Abc_Frame_t * pAbc, int argc, char ** argv )
             if ( pPars->Slew < 0 ) 
                 goto usage;
             break;
-        case 'D':
+        case 'N':
             if ( globalUtilOptind >= argc )
             {
                 Abc_Print( -1, "Command line switch \"-N\" should be followed by a positive integer.\n" );
@@ -959,7 +959,7 @@ int Scl_CommandBuffer( Abc_Frame_t * pAbc, int argc, char ** argv )
         return 1;
     }
     // modify the current network
-    pNtkRes = Abc_SclBufSizePerform( pNtk, (SC_Lib *)pAbc->pLibScl, pPars );
+    pNtkRes = Abc_SclBufferingPerform( pNtk, (SC_Lib *)pAbc->pLibScl, pPars );
     if ( pNtkRes == NULL )
     {
         Abc_Print( -1, "The command has failed.\n" );
@@ -970,11 +970,11 @@ int Scl_CommandBuffer( Abc_Frame_t * pAbc, int argc, char ** argv )
     return 0;
 
 usage:
-    fprintf( pAbc->Err, "usage: buffer [-GSD num] [-sbpcvwh]\n" );
+    fprintf( pAbc->Err, "usage: buffer [-GSN num] [-sbpcvwh]\n" );
     fprintf( pAbc->Err, "\t           performs buffering and sizing and mapped network\n" );
     fprintf( pAbc->Err, "\t-G <num> : target gain percentage [default = %d]\n", pPars->GainRatio );
     fprintf( pAbc->Err, "\t-S <num> : target slew in pisoseconds [default = %d]\n", pPars->Slew );
-    fprintf( pAbc->Err, "\t-D <num> : the maximum fanout degree [default = %d]\n", pPars->nDegree );
+    fprintf( pAbc->Err, "\t-N <num> : the maximum fanout count [default = %d]\n", pPars->nDegree );
     fprintf( pAbc->Err, "\t-s       : toggle performing only sizing [default = %s]\n", pPars->fSizeOnly? "yes": "no" );
     fprintf( pAbc->Err, "\t-b       : toggle using buffers instead of inverters [default = %s]\n", pPars->fAddBufs? "yes": "no" );
     fprintf( pAbc->Err, "\t-p       : toggle buffering primary inputs [default = %s]\n", pPars->fBufPis? "yes": "no" );
-- 
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