Added switch -f to 'print_io' to suppress printing flops.

src/base/abc/abc.h

@@ -750,7 +750,7 @@ extern ABC_DLL int                Abc_NtkDontCareCompute( Odc_Man_t * p, Abc_Obj
 /*=== abcPrint.c ==========================================================*/
 extern ABC_DLL float              Abc_NtkMfsTotalSwitching( Abc_Ntk_t * pNtk );
 extern ABC_DLL void               Abc_NtkPrintStats( Abc_Ntk_t * pNtk, int fFactored, int fSaveBest, int fDumpResult, int fUseLutLib, int fPrintMuxes, int fPower, int fGlitch );
-extern ABC_DLL void               Abc_NtkPrintIo( FILE * pFile, Abc_Ntk_t * pNtk );
+extern ABC_DLL void               Abc_NtkPrintIo( FILE * pFile, Abc_Ntk_t * pNtk, int fPrintFlops );
 extern ABC_DLL void               Abc_NtkPrintLatch( FILE * pFile, Abc_Ntk_t * pNtk );
 extern ABC_DLL void               Abc_NtkPrintFanio( FILE * pFile, Abc_Ntk_t * pNtk );
 extern ABC_DLL void               Abc_NtkPrintFanioNew( FILE * pFile, Abc_Ntk_t * pNtk, int fMffc );

src/base/abci/abc.c

@@ -1088,14 +1088,17 @@ int Abc_CommandPrintIo( Abc_Frame_t * pAbc, int argc, char ** argv )
 {
     Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);
     Abc_Obj_t * pNode;
-    int c;
+    int c, fPrintFlops = 1;
 
     // set defaults
     Extra_UtilGetoptReset();
-    while ( ( c = Extra_UtilGetopt( argc, argv, "h" ) ) != EOF )
+    while ( ( c = Extra_UtilGetopt( argc, argv, "fh" ) ) != EOF )
     {
         switch ( c )
         {
+        case 'f':
+            fPrintFlops ^= 1;
+            break;
         case 'h':
             goto usage;
         default:
@@ -1127,12 +1130,13 @@ int Abc_CommandPrintIo( Abc_Frame_t * pAbc, int argc, char ** argv )
         return 0;
     }
     // print the nodes
-    Abc_NtkPrintIo( stdout, pNtk );
+    Abc_NtkPrintIo( stdout, pNtk, fPrintFlops );
     return 0;
 
 usage:
-    Abc_Print( -2, "usage: print_io [-h] <node>\n" );
-    Abc_Print( -2, "\t        prints the PIs/POs or fanins/fanouts of a node\n" );
+    Abc_Print( -2, "usage: print_io [-fh] <node>\n" );
+    Abc_Print( -2, "\t        prints the PIs/POs/flops or fanins/fanouts of a node\n" );
+    Abc_Print( -2, "\t-f    : toggles printing flops [default = %s]\n", fPrintFlops? "yes": "no" );
     Abc_Print( -2, "\t-h    : print the command usage\n");
     Abc_Print( -2, "\tnode  : the node to print fanins/fanouts\n");
     return 1;

src/base/abci/abcPrint.c

@@ -395,7 +395,7 @@ void Abc_NtkPrintStats( Abc_Ntk_t * pNtk, int fFactored, int fSaveBest, int fDum
   SeeAlso     []
 
 ***********************************************************************/
-void Abc_NtkPrintIo( FILE * pFile, Abc_Ntk_t * pNtk )
+void Abc_NtkPrintIo( FILE * pFile, Abc_Ntk_t * pNtk, int fPrintFlops )
 {
     Abc_Obj_t * pObj;
     int i;
@@ -411,6 +411,9 @@ void Abc_NtkPrintIo( FILE * pFile, Abc_Ntk_t * pNtk )
         fprintf( pFile, " %s", Abc_ObjName(pObj) );
     fprintf( pFile, "\n" );    
 
+    if ( !fPrintFlops )
+        return;
+
     fprintf( pFile, "Latches (%d):  ", Abc_NtkLatchNum(pNtk) );  
     Abc_NtkForEachLatch( pNtk, pObj, i )
         fprintf( pFile, " %s(%s=%s)", Abc_ObjName(pObj),