content: /********************************************************************************
   * The contents of this file are subject to the GNU General Public License      *
   * (GPL) Version 2 or later (the "License"); you may not use this file except   *
   * in compliance with the License. You may obtain a copy of the License at      *
   * http://www.gnu.org/copyleft/gpl.html                                         *
   *                                                                              *
   * Software distributed under the License is distributed on an "AS IS" basis,   *
   * without warranty of any kind, either expressed or implied. See the License   *
   * for the specific language governing rights and limitations under the         *
   * License.                                                                     *
   *                                                                              *
   * This file was originally developed as part of the software suite that        *
   * supports the book "The Elements of Computing Systems" by Nisan and Schocken, *
   * MIT Press 2005. If you modify the contents of this file, please document and *
   * mark your changes clearly, for the benefit of others.                        *
   ********************************************************************************/
  
  package Hack.ComputerParts;
  
  import Hack.ComputerParts.*;
  
  /**
   * An AbsolutePointedMemorySegment in which the pointer is always set to the address just
   * after the last updated address.
   * Can be useful together with a gui that doesn't display addresses beyond the pointer address.
   */
  public class TrimmedAbsoluteMemorySegment extends AbsolutePointedMemorySegment {
  
      /**
       * Constructs a new TrimmedAbsoluteMemorySegment with the given main memory and GUI.
       */
      public TrimmedAbsoluteMemorySegment(Memory mainMemory, PointedMemorySegmentGUI gui) {
          super(mainMemory, gui);
      }
  
      /**
       * Constructs a new TrimmedAbsoluteMemorySegment with the given main memory, GUI and the legal
       * values range.
       */
      public TrimmedAbsoluteMemorySegment(Memory mainMemory, PointedMemorySegmentGUI gui,
                                          short minValue, short maxValue) {
          super(mainMemory, gui, minValue, maxValue);
      }
  
      public void setValueAt(int index, short value, boolean quiet) {
          if (displayChanges)
              ((PointedMemorySegmentGUI)gui).setPointer(index + 1);
  
          super.setValueAt(index, value, quiet);
      }
  }
  