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.utils;
  
  import java.io.FileReader;
  import java.io.LineNumberReader;
  
  public class VCDParser {
      public static void main(String args[]) throws Exception {
          
          LineNumberReader reader = new LineNumberReader(new FileReader("./../sim/verilator/ao486/ao486.vcd"));
          
          boolean last_finished = false;
          int last_val = 0;
          int counter = 0;
          int cnt = 77020000;
          
          while(true) {
              String line = reader.readLine();
              if(line == null) break;
              
              if(line.startsWith("#")) {
                  if(last_finished) {
                      counter++;
                      if((counter % 2) == 0) System.out.printf("%d: %02x\n", cnt++, last_val);
                  }
              }
              if(line.equals("1FF")) last_finished = true;
              if(line.equals("0FF")) last_finished = false;
              if(line.endsWith(" >K") && line.startsWith("b")) {
                  String val_str = line.substring(1, 8);
                  last_val = Integer.parseInt(val_str, 2);
              }
          }
          
      }
  }
  