Booksim2 abandoned svn and moved to github (https://github.com/booksim/booksim2). This .svn folder is useless now and should be deleted.

For further integration, a git submodule/git subtree may be used. Since I modified their source code, we cannot use git submodule/git subtree easily.

Signed-off-by: Myrice <[email protected]>

1 files changed, 0 insertions, 890 deletions

diff --git a/src/intersim2/.svn/pristine/ce/ce3f71fc2f0c6cac1246ba0e26b6af41edef501d.svn-base b/src/intersim2/.svn/pristine/ce/ce3f71fc2f0c6cac1246ba0e26b6af41edef501d.svn-base
deleted file mode 100644
index 1894af7..0000000
--- a/src/intersim2/.svn/pristine/ce/ce3f71fc2f0c6cac1246ba0e26b6af41edef501d.svn-base
+++ /dev/null
@@ -1,890 +0,0 @@
-// $Id$
-
-/*
- Copyright (c) 2007-2012, Trustees of The Leland Stanford Junior University
- All rights reserved.
-
- Redistribution and use in source and binary forms, with or without
- modification, are permitted provided that the following conditions are met:
-
- Redistributions of source code must retain the above copyright notice, this 
- list of conditions and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this
- list of conditions and the following disclaimer in the documentation and/or
- other materials provided with the distribution.
-
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
- ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
- DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
- ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#include <string>
-#include <sstream>
-#include <iostream>
-#include <cstdlib>
-#include <cassert>
-
-#include "event_router.hpp"
-#include "stats.hpp"
-#include "globals.hpp"
-
-EventRouter::EventRouter( const Configuration& config,
-		    Module *parent, const string & name, int id,
-		    int inputs, int outputs )
-  : Router( config,
-	    parent, name,
-	    id,
-	    inputs, outputs )
-{
-  ostringstream module_name;
-  
-  _vcs            = config.GetInt( "num_vcs" );
-
-  // Cut-through mode --- packets are not broken
-  // up and input buffers are assumed to be 
-  // expressed in units of maximum size packets.
-  
-  _vct            = config.GetInt( "vct" );
-
-  // Routing
-
-  string rf = config.GetStr("routing_function") + "_" + config.GetStr("topology");
-  map<string, tRoutingFunction>::iterator rf_iter = gRoutingFunctionMap.find(rf);
-  if(rf_iter == gRoutingFunctionMap.end()) {
-    Error("Invalid routing function: " + rf);
-  }
-  _rf = rf_iter->second;
-
-  // Alloc VC's
-
-  _buf.resize(_inputs);
-  _active.resize(_inputs);
-
-  for ( int i = 0; i < _inputs; ++i ) {
-    module_name << "buf_" << i;
-    _buf[i] = new Buffer( config, _outputs, this, module_name.str( ) );
-    module_name.seekp( 0, ios::beg );
-    _active[i].resize(_vcs, false);
-  }
-
-  // Alloc next VCs' state
-
-  _output_state.resize(_outputs);
-
-  for ( int o = 0; o < _outputs; ++o ) {
-    module_name << "output" << o << "_vc_state";
-    _output_state[o] = new EventNextVCState(config, this, module_name.str());
-    module_name.seekp( 0, ios::beg );
-  }
-
-  // Alloc arbiters
-
-  _arrival_arbiter.resize(_outputs);
-
-  for ( int o = 0; o < _outputs; ++o ) {
-    module_name << "arrival_arb_output" << o;
-    _arrival_arbiter[o] = 
-      new PriorityArbiter( config, this, module_name.str( ), _inputs );
-    module_name.seekp( 0, ios::beg );
-  }
-
-  _transport_arbiter.resize(_inputs);
-
-  for ( int i = 0; i < _inputs; ++i ) {
-    module_name << "transport_arb_input" << i;
-    _transport_arbiter[i] = 
-      new PriorityArbiter( config, this, module_name.str( ), _outputs );
-    module_name.seekp( 0, ios::beg );
-  }
-
-  // Alloc pipelines (to simulate processing/transmission delays)
-
-  _crossbar_pipe = 
-    new PipelineFIFO<Flit>( this, "crossbar_pipeline", _outputs, 
-			    _crossbar_delay );
-
-  _credit_pipe =
-    new PipelineFIFO<Credit>( this, "credit_pipeline", _inputs,
-			      _credit_delay );
-
-  _arrival_pipe =
-    new PipelineFIFO<tArrivalEvent>( this, "arrival_pipeline", _inputs,
-				     0 /* FIX THIS EVENTUALLY */);
-
-  // Queues
-
-  _input_buffer.resize(_inputs); 
-  _output_buffer.resize(_outputs); 
-
-  _in_cred_buffer.resize(_inputs); 
-  _out_cred_buffer.resize(_outputs);
-
-  _arrival_queue.resize(_inputs);
-  _transport_queue.resize(_outputs);
-
-  // Misc.
-
-  _transport_free.resize(_inputs, true);
-  _transport_match.resize(_inputs, -1);
-}
-
-EventRouter::~EventRouter( )
-{
-  for ( int i = 0; i < _inputs; ++i ) {
-    delete _buf[i];
-  }
-
-  for ( int o = 0; o < _outputs; ++o ) {
-    delete _output_state[o];
-  }
-
-  for ( int o = 0; o < _outputs; ++o ) {
-    delete _arrival_arbiter[o];
-  }
-
-  for ( int i = 0; i < _inputs; ++i ) {
-    delete _transport_arbiter[i];
-  }
-
-  delete _crossbar_pipe;
-  delete _credit_pipe;
-  delete _arrival_pipe;
-}
-  
-void EventRouter::ReadInputs( )
-{
-  _ReceiveFlits( );
-  _ReceiveCredits( );
-}
-
-void EventRouter::_InternalStep( )
-{
-  // Receive incoming flits
-  _IncomingFlits( );
-
-  // The input pipe simulates routing delay
-  _arrival_pipe->Advance( );
-
-  // Clear output requests
-  for ( int output = 0; output < _outputs; ++output ) {
-    _arrival_arbiter[output]->Clear( );
-  }
-
-  // Check input arrival queues and generate
-  // requests for the outputs
-  for ( int input = 0; input < _inputs; ++input ) {
-    _ArrivalRequests( input );
-  }
-
-  // Arbitrate between requests at outputs
-  for ( int output = 0; output < _outputs; ++output ) {
-    _ArrivalArb( output );
-  }
-
-  for ( int input = 0; input < _inputs; ++input ) {
-    _transport_arbiter[input]->Clear( );
-  }
-
-  _crossbar_pipe->WriteAll( 0 );
-  _credit_pipe->WriteAll( 0 );
-
-  // Generate transport events and their
-  // requests for the inputs
-  for ( int output = 0; output < _outputs; ++output ) {
-    _TransportRequests( output );
-  }
-
-  // Arbitrate between requests at inputs
-  for ( int input = 0; input < _inputs; ++input ) {
-    _TransportArb( input );
-  }
-
-  _crossbar_pipe->Advance( );
-  _credit_pipe->Advance( );
-
-  _OutputQueuing( );
-}
-
-void EventRouter::WriteOutputs( )
-{
-  _SendFlits( );
-  _SendCredits( );
-}
-
-void EventRouter::_ReceiveFlits( )
-{
-  Flit *f;
-
-  for ( int input = 0; input < _inputs; ++input ) { 
-    f = _input_channels[input]->Receive();
-
-    if ( f ) {
-      _input_buffer[input].push( f );
-    }
-  }
-}
-
-void EventRouter::_ReceiveCredits( )
-{
-  Credit *c;
-
-  for ( int output = 0; output < _outputs; ++output ) {  
-    c = _output_credits[output]->Receive();
-
-    if ( c ) {
-      _out_cred_buffer[output].push( c );
-    }
-  }
-}
-
-void EventRouter::_ProcessWaiting( int output, int out_vc )
-{
-  // out_vc just sent the transport event for out_vc, 
-  // check if any events are queued on that vc.  if so,
-  // generate another transport event and set the 
-  // owner of the vc, otherwise set the vc to idle.
-
-  int credits;
-  
-  tTransportEvent *tevt;
-
-  EventNextVCState::tWaiting *w;
-
-  if ( _output_state[output]->IsWaiting( out_vc ) ) {
-	    
-    // State remains as busy, but the waiting VC takes over
-    w = _output_state[output]->PopWaiting( out_vc );
-    
-    _output_state[output]->SetState( out_vc, EventNextVCState::busy );
-    _output_state[output]->SetInput( out_vc, w->input );
-    _output_state[output]->SetInputVC( out_vc, w->vc );
-
-    if ( w->watch ) {
-      cout << "Dequeuing waiting arrival event at " << FullName() 
-	   << " for flit " << w->id << endl;
-    }
-    
-    credits = _output_state[output]->GetCredits( out_vc );
-
-    // Try to queue a transmit event for a waiting packet
-    if ( credits > 0 ) {
-      tevt         = new tTransportEvent;
-      tevt->src_vc = w->vc;
-      tevt->dst_vc = out_vc;
-      tevt->input  = w->input;
-      tevt->watch  = w->watch; // just to have something here
-      tevt->id     = w->id;
-      
-      _transport_queue[output].push( tevt );
-      
-      if ( tevt->watch ) {
-	cout << "Injecting transport event at " << FullName() 
-	     << " for flit " << tevt->id << endl;
-      }
-      
-      credits--;
-      _output_state[output]->SetCredits( out_vc, credits );
-      _output_state[output]->SetPresence( out_vc, w->pres - 1 );
-      
-    } else {
-      // No credits available, just store presence
-      _output_state[output]->SetPresence( out_vc, w->pres );
-    }
-
-    delete w;
-
-  } else {
-    // Tail sent, none waiting => VC is idle
-    _output_state[output]->SetState( out_vc, EventNextVCState::idle );
-  }
-}
-
-void EventRouter::_IncomingFlits( )
-{
-  Flit   *f;
-  Buffer *cur_buf;
-
-  tArrivalEvent *aevt;
-
-  _arrival_pipe->WriteAll( 0 );
-
-  for ( int input = 0; input < _inputs; ++input ) {
-    if ( !_input_buffer[input].empty( ) ) {
-      f = _input_buffer[input].front( );
-      _input_buffer[input].pop( );
-
-      cur_buf = _buf[input];
-      int vc = f->vc;
-
-      cur_buf->AddFlit( vc, f );
-
-      // Head flit arriving at idle VC
-      if ( !_active[input][vc] ) {
-	
-	if ( !f->head ) {
-	  cout << "Non-head flit:" << endl;
-	  cout << *f;
-	  Error( "Received non-head flit at idle VC" );
-	}
-
-	const OutputSet *route_set;
-	int out_vc, out_port;
-
-	cur_buf->Route( vc, _rf, this, f, input );
-	route_set = cur_buf->GetRouteSet( vc );
-
-	if ( !route_set->GetPortVC( &out_port, &out_vc ) ) {
-	  Error( "The event-driven router requires routing functions with a single (port,vc) output" );
-	}
-
-	cur_buf->SetOutput( vc, out_port, out_vc );
-	_active[input][vc] = true;
-      } else {
-	if ( f->head ) {
-	  cout << *f;
-	  Error( "Received head flit at non-idle VC." );
-	}
-      }
-      
-      if ( f->watch ) {
-	*gWatchOut << GetSimTime() << " | " << FullName() << " | "
-		    << "Received flit at " << FullName() << ".  Output port = " 
-		    << cur_buf->GetOutputPort( vc ) << ", output VC = " 
-		    << cur_buf->GetOutputVC( vc ) << endl
-		    << *f;
-      }
-
-      // In cut-through mode, only head flits generate arrivals,
-      // otherwise all flits generate
-
-      if ( ( !_vct ) || ( _vct && f->head ) ) {
-	// Add the arrival event to a delay pipeline to
-	// account for routing/decoding time
-
-	aevt         = new tArrivalEvent;
-	
-	aevt->input  = input;
-	aevt->output = cur_buf->GetOutputPort( vc );
-	aevt->src_vc = f->vc;
-	aevt->dst_vc = cur_buf->GetOutputVC( vc );
-	aevt->head   = f->head;
-	aevt->tail   = f->tail;
-	
-	//if ( f->head && f->tail ) {
-	//	Error( "Head/tail packets not supported." );
-	//}
-	
-	aevt->watch  = f->watch;
-	aevt->id     = f->id;
-	
-	_arrival_pipe->Write( aevt, input );
-
-	if ( aevt->watch ) {
-	  cout << "Injected arrival event at " << FullName() 
-	       << " for flit " << aevt->id << endl;
-	}
-      }
-    }
-  }
-}
-
-void EventRouter::_ArrivalRequests( int input ) 
-{
-  tArrivalEvent *aevt;
-  
-  aevt = _arrival_pipe->Read( input );
-  if ( aevt ) {
-    _arrival_queue[input].push( aevt );
-  }
-  
-  if ( !_arrival_queue[input].empty( ) ) {
-    aevt = _arrival_queue[input].front( );
-    _arrival_arbiter[aevt->output]->AddRequest( input );
-  }
-}
-
-void EventRouter::_SendTransport( int input, int output, tArrivalEvent *aevt )
-{
-  // Try to send a transport event
-
-  tTransportEvent *tevt;
-
-  int credits;
-  int pres;
-
-  credits = _output_state[output]->GetCredits( aevt->dst_vc );
-  
-  if ( credits > 0 ) {
-    // Take a credit and queue a transport event
-    credits--;
-    _output_state[output]->SetCredits( aevt->dst_vc, credits );
-    
-    tevt         = new tTransportEvent;
-    tevt->src_vc = aevt->src_vc;
-    tevt->dst_vc = aevt->dst_vc;
-    tevt->input  = input;
-    tevt->watch  = aevt->watch;
-    tevt->id     = aevt->id;
-	
-    _transport_queue[output].push( tevt );
-	
-    if ( tevt->watch ) {
-      cout << "Injecting transport event at " << FullName() 
-	   << " for flit " << tevt->id << endl;
-    }
-  } else {
-    if ( aevt->watch ) {
-      cout << "No credits available at " << FullName() 
-	   << " for flit " << aevt->id << " storing presence." << endl;
-    }
-    
-    // No credits available, just store presence
-    pres = _output_state[output]->GetPresence( aevt->dst_vc );
-    _output_state[output]->SetPresence( aevt->dst_vc, pres + 1 );
-  }
-}
-
-void EventRouter::_ArrivalArb( int output )
-{
-  tArrivalEvent   *aevt;
-  tTransportEvent *tevt;
-  Credit          *c;
-
-  EventNextVCState::tWaiting *w;
-
-  int input;
-  int credits;
-  int pres;
-
-  // Incoming credits can produce or enable
-  // transport events --- process them first
-
-  if ( !_out_cred_buffer[output].empty( ) ) {
-    c = _out_cred_buffer[output].front( );
-    _out_cred_buffer[output].pop( );
-    
-    assert( c->vc.size() == 1 );
-    int vc = *c->vc.begin();
-
-    EventNextVCState::eNextVCState state = 
-      _output_state[output]->GetState( vc );
-    
-    credits = _output_state[output]->GetCredits( vc );
-    pres    = _output_state[output]->GetPresence( vc );
-      
-    if ( _vct ) {
-      // In cut-through mode, only head credits indicate a change in 
-      // channel state.
-
-      if ( c->head ) {
-	credits++;
-	_output_state[output]->SetCredits( vc, credits );
-	_ProcessWaiting( output, vc );
-      }
-    } else {
-      credits++;
-      _output_state[output]->SetCredits( vc, credits );
-
-      if ( c->tail ) { // tail flit -- recycle VC
-	if ( state != EventNextVCState::busy ) {
-	  Error( "Received tail credit at non-busy output VC" );
-	}
-	
-	_ProcessWaiting( output, vc );
-      } else if ( ( state == EventNextVCState::busy ) && ( pres > 0 ) ) {
-	// Flit is present => generate transport event
-	
-	tevt         = new tTransportEvent;
-	tevt->input  = _output_state[output]->GetInput( vc );
-	tevt->src_vc = _output_state[output]->GetInputVC( vc );
-	tevt->dst_vc = vc;
-	tevt->watch  = false;
-	tevt->id     = -1;
-	
-	_transport_queue[output].push( tevt );
-	
-	pres--;
-	credits--;
-	_output_state[output]->SetPresence( vc, pres );
-	_output_state[output]->SetCredits( vc, credits );
-      }
-    }
-
-    c->Free();
-  }
-
-  // Now process arrival events
-
-  _arrival_arbiter[output]->Arbitrate( );
-  input = _arrival_arbiter[output]->Match( );
-
-  if ( input != -1 ) {  
-    // Winning arrival event gets access to output
-
-    aevt = _arrival_queue[input].front( );
-    _arrival_queue[input].pop( );
-
-    if ( aevt->watch ) {
-      cout << "Processing arrival event at " << FullName() 
-	     << " for flit " << aevt->id << endl;
-    }
-      
-    EventNextVCState::eNextVCState state = 
-      _output_state[output]->GetState( aevt->dst_vc );
-
-    if ( aevt->head ) { // Head flits
-      if ( state == EventNextVCState::idle ) {
-	// Allocate the output VC and queue a transport event
-	_output_state[output]->SetState( aevt->dst_vc, EventNextVCState::busy );
-	_output_state[output]->SetInput( aevt->dst_vc, input );
-	_output_state[output]->SetInputVC( aevt->dst_vc, aevt->src_vc );
-
-	_SendTransport( input, output, aevt );
-      } else {
-	// VC busy => queue a waiting event
-
-	w = new EventNextVCState::tWaiting;
-
-	w->input = input;
-	w->vc    = aevt->src_vc;
-	w->id    = aevt->id;
-	w->watch = aevt->watch;
-	w->pres  = 1;
-
-	_output_state[output]->PushWaiting( aevt->dst_vc, w );
-      }
-    } else {
-      if ( _vct ) {
-	Error( "Received arrival event for non-head flit in cut-through mode" );
-      }
-
-      if ( state != EventNextVCState::busy ) {
-	cout << "flit id = " << aevt->id << endl;
-	Error( "Received a body flit at a non-busy output VC" );
-      }
-      
-      if ( ( !_output_state[output]->IsInputWaiting( aevt->dst_vc, input, aevt->src_vc ) ) &&
-	   ( input == _output_state[output]->GetInput( aevt->dst_vc ) ) &&
-	   ( aevt->src_vc == _output_state[output]->GetInputVC( aevt->dst_vc ) ) ) {
-	// Body flit part of the current active VC => queue transport event
-	// (the weird IsInputWaiting call handles a body flit waiting in addition
-	// to a head flit)
-
-	_SendTransport( input, output, aevt );
-      } else {
-
-	// VC busy with a differnet transaction => update waiting event
-	_output_state[output]->IncrWaiting( aevt->dst_vc, input, aevt->src_vc );
-      } 
-    }
-
-    delete aevt;
-  }
-}
-
-void EventRouter::_TransportRequests( int output )
-{
-  tTransportEvent *tevt;
-  
-  if ( !_transport_queue[output].empty( ) ) {
-    tevt = _transport_queue[output].front( );
-    _transport_arbiter[tevt->input]->AddRequest( output );
-  }
-}
-
-void EventRouter::_TransportArb( int input ) 
-{
-  tTransportEvent *tevt;
-
-  int    output;
-  Buffer *cur_buf;
-  Flit   *f;
-  Credit *c;
-
-  if ( _transport_free[input] ) {
-    _transport_arbiter[input]->Arbitrate( );
-    output = _transport_arbiter[input]->Match( );
-  } else {
-    output = _transport_match[input];
-  }
-
-  if ( output != -1 ) {  
-    // This completes the match from input to output =>
-    // one flit can be transferred
-
-    tevt = _transport_queue[output].front( );
-    
-    if ( tevt->watch ) {
-      cout << "Processing transport event at " << FullName() 
-	   << " for flit " << tevt->id << endl;
-    }
-
-    cur_buf = _buf[input];
-    int vc = tevt->src_vc;
-
-    // Some sanity checking first
-
-    if ( !_active[input][vc] ) {
-      Error( "Non-active VC received grant." );
-    }
-
-    if ( cur_buf->Empty( vc ) ) {
-      return; //Error( "Empty VC received grant." );
-    }
-
-    if ( tevt->dst_vc != cur_buf->GetOutputVC( vc ) ) {
-      Error( "Transport event's VC does not match input's destination VC." );
-    }
-
-    f = cur_buf->RemoveFlit( vc );
-
-    if ( _vct ) {
-      if ( f->tail ) {
-	_transport_free[input]  = true;
-	_transport_match[input] = -1;
-
-	_transport_queue[output].pop( );
-	delete tevt;
-
-	_active[input][vc] = false;
-      } else {
-	_transport_free[input]  = false;
-	_transport_match[input] = output;
-      }
-    } else {
-      _transport_free[input]  = true;
-      _transport_match[input] = -1;
-
-      _transport_queue[output].pop( );
-      delete tevt;
-
-      if ( f->tail ) {
-	_active[input][vc] = false;
-      }
-    }
-
-    c = Credit::New( );
-    c->vc.insert(f->vc);
-    c->head          = f->head;
-    c->tail          = f->tail;
-    c->id            = f->id;
-    _credit_pipe->Write( c, input );
-    
-    if ( f->watch && c->tail ) {
-      *gWatchOut << GetSimTime() << " | " << FullName() << " | "
-		  << FullName() << " sending tail credit back for flit " << f->id << endl;
-    }
-
-    // Update and forward the flit to the crossbar
-
-    f->hops++;
-    f->vc = cur_buf->GetOutputVC( vc );
-    _crossbar_pipe->Write( f, output );
-
-    if ( f->watch ) {
-      *gWatchOut << GetSimTime() << " | " << FullName() << " | "
-		  << "Forwarding flit through crossbar at " << FullName() << ":" << endl
-		  << *f;
-    }  
-  }
-}
-
-void EventRouter::_OutputQueuing( )
-{
-  Flit   *f;
-  Credit *c;
-
-  for ( int output = 0; output < _outputs; ++output ) {
-    f = _crossbar_pipe->Read( output );
-
-    if ( f ) {
-      _output_buffer[output].push( f );
-    }
-  }  
-
-  for ( int input = 0; input < _inputs; ++input ) {
-    c = _credit_pipe->Read( input );
-
-    if ( c ) {
-      _in_cred_buffer[input].push( c );
-    }
-  }
-}
-
-void EventRouter::_SendFlits( )
-{
-  for ( int output = 0; output < _outputs; ++output ) {
-    if ( !_output_buffer[output].empty( ) ) {
-      Flit *f = _output_buffer[output].front( );
-      _output_buffer[output].pop( );
-      _output_channels[output]->Send( f );
-    }
-  }
-}
-
-void EventRouter::_SendCredits( )
-{
-  for ( int input = 0; input < _inputs; ++input ) {
-    if ( !_in_cred_buffer[input].empty( ) ) {
-      Credit *c = _in_cred_buffer[input].front( );
-      _in_cred_buffer[input].pop( );
-      _input_credits[input]->Send( c );
-    }
-  }
-}
-
-void EventRouter::Display( ostream & os ) const
-{
-  for ( int input = 0; input < _inputs; ++input ) {
-    _buf[input]->Display( os );
-  }
-}
-
-EventNextVCState::EventNextVCState( const Configuration& config, 
-				    Module *parent, const string& name ) :
-  Module( parent, name )
-{
-  _buf_size = config.GetInt( "vc_buf_size" );
-  _vcs      = config.GetInt( "num_vcs" );
-
-  _credits.resize(_vcs, _buf_size);
-  _presence.resize(_vcs, 0);
-  _input.resize(_vcs);
-  _inputVC.resize(_vcs);
-  _waiting.resize(_vcs);
-  _state.resize(_vcs, idle);
-}
-
-EventNextVCState::eNextVCState EventNextVCState::GetState( int vc ) const
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-  return _state[vc];
-}
-
-int EventNextVCState::GetPresence( int vc ) const
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-  return _presence[vc];
-}
-
-int EventNextVCState::GetCredits( int vc ) const
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-  return _credits[vc];
-}
-
-int EventNextVCState::GetInput( int vc ) const
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-  return _input[vc];
-}
-
-int EventNextVCState::GetInputVC( int vc ) const
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-  return _inputVC[vc];
-}
-
-bool EventNextVCState::IsWaiting( int vc ) const
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-  return !_waiting[vc].empty( );
-}
-
-void EventNextVCState::PushWaiting( int vc, tWaiting *w )
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-
-  if ( w->watch ) {
-    cout << FullName() << " pushing flit " << w->id
-	 << " onto a waiting queue of length " << _waiting[vc].size( ) << endl;
-  }
-
-  _waiting[vc].push_back( w );
-}
-
-void EventNextVCState::IncrWaiting( int vc, int w_input, int w_vc )
-{
-  list<tWaiting *>::iterator match;
-
-  // search for match
-  for ( match = _waiting[vc].begin( ); match != _waiting[vc].end( ); match++ ) {
-    if ( ( (*match)->input == w_input ) &&
-	 ( (*match)->vc    == w_vc ) ) break;
-  }
-
-  if ( match != _waiting[vc].end( ) ) {
-    (*match)->pres++;
-  } else {
-    Error( "Did not find match in IncrWaiting" );
-  }
-}
-
-bool EventNextVCState::IsInputWaiting( int vc, int w_input, int w_vc ) const
-{
-  list<tWaiting *>::const_iterator match;
-  bool r;
-
-  // search for match
-  for ( match = _waiting[vc].begin( ); match != _waiting[vc].end( ); match++ ) {
-    if ( ( (*match)->input == w_input ) &&
-	 ( (*match)->vc    == w_vc ) ) break;
-  }
-
-  if ( match != _waiting[vc].end( ) ) {
-    r = true;
-  } else {
-    r = false;
-  }
-
-  return r;
-}
-
-EventNextVCState::tWaiting *EventNextVCState::PopWaiting( int vc )
-{
-  tWaiting *w;
-
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
- 
-  w = _waiting[vc].front( );
-  _waiting[vc].pop_front( );
-
-  return w;
-}
-
-void EventNextVCState::SetState( int vc, eNextVCState state )
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-  _state[vc] = state;
-}
-
-void EventNextVCState::SetCredits( int vc, int value )
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-  _credits[vc] = value;
-}
-
-void EventNextVCState::SetPresence( int vc, int value )
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-  _presence[vc] = value;
-}
-
-void EventNextVCState::SetInput( int vc, int input )
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-  _input[vc] = input;
-}
-
-void EventNextVCState::SetInputVC( int vc, int in_vc )
-{
-  assert( ( vc >= 0 ) && ( vc < _vcs ) );
-  _inputVC[vc] = in_vc;
-}