From 0d802453e42f7a1cb2280207d58f8acc6bf8d7d2 Mon Sep 17 00:00:00 2001
From: Alan Mishchenko <alanmi@berkeley.edu>
Date: Wed, 11 Apr 2012 08:09:31 -0700
Subject: Adding reverse order to 'addbuffs'.

---
 src/base/abci/abc.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

(limited to 'src/base/abci/abc.c')

diff --git a/src/base/abci/abc.c b/src/base/abci/abc.c
index bf3abf26..deb9bad1 100644
--- a/src/base/abci/abc.c
+++ b/src/base/abci/abc.c
@@ -4550,17 +4550,22 @@ usage:
 ***********************************************************************/
 int Abc_CommandAddBuffs( Abc_Frame_t * pAbc, int argc, char ** argv )
 {
-    extern Abc_Ntk_t * Abc_NtkAddBuffs( Abc_Ntk_t * pNtk, int fVerbose );
+    extern Abc_Ntk_t * Abc_NtkAddBuffs( Abc_Ntk_t * pNtk, int fReverse, int fVerbose );
     Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);
     Abc_Ntk_t * pNtkRes;
     int c, fVerbose;
+    int fReverse;
 
+    fReverse = 0;
     fVerbose = 0;
     Extra_UtilGetoptReset();
-    while ( ( c = Extra_UtilGetopt( argc, argv, "vh" ) ) != EOF )
+    while ( ( c = Extra_UtilGetopt( argc, argv, "rvh" ) ) != EOF )
     {
         switch ( c )
         {
+        case 'r':
+            fReverse ^= 1;
+            break;
         case 'v':
             fVerbose ^= 1;
             break;
@@ -4583,7 +4588,7 @@ int Abc_CommandAddBuffs( Abc_Frame_t * pAbc, int argc, char ** argv )
     }
 
     // modify the current network
-    pNtkRes = Abc_NtkAddBuffs( pNtk, fVerbose );
+    pNtkRes = Abc_NtkAddBuffs( pNtk, fReverse, fVerbose );
     if ( pNtkRes == NULL )
     {
         Abc_Print( -1, "The command has failed.\n" );
@@ -4594,8 +4599,9 @@ int Abc_CommandAddBuffs( Abc_Frame_t * pAbc, int argc, char ** argv )
     return 0;
 
 usage:
-    Abc_Print( -2, "usage: addbuffs [-vh]\n" );
+    Abc_Print( -2, "usage: addbuffs [-rvh]\n" );
     Abc_Print( -2, "\t           adds buffers to create balanced CI/CO paths\n" );
+    Abc_Print( -2, "\t-r       : toggle reversing the levelized order [default = %s]\n", fReverse? "yes": "no" );
     Abc_Print( -2, "\t-v       : toggle printing optimization summary [default = %s]\n", fVerbose? "yes": "no" );
     Abc_Print( -2, "\t-h       : print the command usage\n");
     return 1;
-- 
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