code: /*
   * Copyright (c) 2014, Aleksander Osman
   * 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 HOLDER 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.
   */
  
  package ao486.module.memory;
  
  import java.util.HashSet;
  
  public class InvalidateListener implements Listener {
      
      public interface InvalidateInterface {
          void invdcode_finished(int cycle) throws Exception;
          void invddata_finished(int cycle) throws Exception;
          void wbinvddata_finished(int cycle) throws Exception;
      }
      
      public void invdcode(int cycle, InvalidateInterface invalidate) throws Exception {
          invdcode.add(cycle);
          this.invalidate = invalidate;
      }
      public void invddata(int cycle, InvalidateInterface invalidate) throws Exception {
          invddata.add(cycle);
          this.invalidate = invalidate;
      }
      public void wbinvddata(int cycle, InvalidateInterface invalidate) throws Exception {
          wbinvddata.add(cycle);
          this.invalidate = invalidate;
      }
      
      //----------------
      
      @Override
      public void set_input(int cycle, Input input) throws Exception {
          if(invdcode.contains(cycle) || invdcode_active) {
              invdcode_active = true;
              input.invdcode_do = true;
          }
          if(invddata.contains(cycle) || invddata_active) {
              invddata_active = true;
              input.invddata_do = true;
          }
          if(wbinvddata.contains(cycle) || wbinvddata_active) {
              wbinvddata_active = true;
              input.wbinvddata_do = true;
          }
      }
  
      @Override
      public void get_output(int cycle, Output output) throws Exception {
          if(output.invdcode_done) {
              invdcode_active   = false;
              invalidate.invdcode_finished(cycle);
          }
          if(output.invddata_done) {
              invddata_active   = false;
              invalidate.invddata_finished(cycle);
          }
          if(output.wbinvddata_done) {
              wbinvddata_active = false;
              invalidate.wbinvddata_finished(cycle);
          }
      }
      
      HashSet<Integer> invdcode   = new HashSet<>();
      boolean invdcode_active;
      
      HashSet<Integer> invddata   = new HashSet<>();
      boolean invddata_active;
      
      HashSet<Integer> wbinvddata = new HashSet<>();
      public boolean wbinvddata_active;
      
      InvalidateInterface invalidate;
  }
  