コード例 #1
0
 public void resetFieldValues() {
   axField.setText("0");
   bxField.setText("0");
   cxField.setText("0");
   dxField.setText("0");
   csField.setText(Integer.toString(simulator.getMemory().codeSegmentStart));
   ipField.setText("0");
   dsField.setText(Integer.toString(simulator.getMemory().dataSegmentStart));
   siField.setText("0");
   ssField.setText(Integer.toString(simulator.getMemory().stackSegmentStart));
   spField.setText("1000");
   bpField.setText("1000");
 }
コード例 #2
0
 /**
  * Adds rows to the data segment table. Data is retrieved from the memory <code>Memory</code>
  * class
  */
 public void addDataInstructions() {
   for (int i = 0; i < simulator.getMemory().dataSegmentStart; i++) {
     int value = simulator.getMemory().getValue(simulator.getMemory().dataSegmentStart + i);
     if (value != 0) {
       String[] temp = {
         simulator.getMemory().dataSegmentStart + (i) + " (" + simulator.getGlobalName(i) + ")",
         value + ""
       };
       dataModel.addRow(temp);
     } else {
       break;
     }
   }
 }
コード例 #3
0
  /**
   * This is used by the Observer design pattern. This method is called when there is a change has
   * been notified
   */
  @Override
  public void update(Observable o, Object arg) {

    if (o instanceof ManageInstructions) {
      clearTextFields();

      for (int i = 0; i < textFieldContainer.size(); i++) {
        String registerName = textFieldContainer.get(i).getName();
        if (!textFieldContainer
            .get(i)
            .getText()
            .equals(Integer.toString(simulator.getRegisters().getRegisterValue(registerName)))) {
          textFieldContainer.get(i).setBackground(new Color(51, 204, 255));
        }
        textFieldContainer
            .get(i)
            .setText(Integer.toString(simulator.getRegisters().getRegisterValue(registerName)));
      }

      csField.setText(Integer.toString(simulator.getMemory().codeSegmentStart));
      if (Integer.toString(simulator.getProgramCounter()) != ipField.getText()) {
        ipField.setBackground(new Color(51, 204, 255));
      }
      ipField.setText(Integer.toString((simulator.getProgramCounter() * 2) + 2));
      dsField.setText(Integer.toString(simulator.getMemory().dataSegmentStart));
      ssField.setText(Integer.toString(simulator.getMemory().stackSegmentStart));
    }
    if (o instanceof MemoryStack) {

      ArrayList stack = simulator.getMemory().getStack().stack();
      while (stackModel.getRowCount() > 0) {
        stackModel.removeRow(0);
      }

      int bp = simulator.getMemory().getStack().oldbp;
      for (int i = 0; i < stack.size(); i++) {
        String operator = "+";
        int n = (stack.size() - i) * 2;
        if (i < bp && bp != 0) {
          operator = "+";
          n = (bp - i) * 2;
        }
        if (bp == 0) {
          operator = "-";
        }
        if (i > bp && bp != 0) {
          operator = "-";
        }
        if (i == bp && bp != 0) {
          n = 0;
        }

        String[] stackRow = {"bp " + operator + " " + n, stack.get(i).toString()};
        stackModel.addRow(stackRow);
      }
    }
  }
コード例 #4
0
  /**
   * Loads the program in the assembly text area and passes to the CPU for processing Creates the
   * data segment, stack segment and code segment
   */
  public void assemblyProgram() { // TODO Auto-generated method stub

    resetEverything();
    simulator.reset();

    simulator.loadProgram(new StringBuffer(editorPane.getText()));
    if (simulator.canExecute()) {
      JPanel dataTable = new JPanel(new BorderLayout());
      JLabel dataLabel = new JLabel("Data Segment");
      dataLabel.setForeground(new Color(23, 88, 154));
      dataLabel.setFont(new Font("Helvetica", Font.BOLD, 14));
      dataTable.add(dataLabel, BorderLayout.NORTH);
      dataTable.add(createDataTable(), BorderLayout.SOUTH);
      memoryPanel.add(dataTable);
      dataTable.setBackground(new Color(246, 253, 219));

      JPanel codeTable = new JPanel(new BorderLayout());
      JLabel codeLabel = new JLabel("Code Segment");
      codeLabel.setFont(new Font("Helvetica", Font.BOLD, 14));
      codeLabel.setForeground(new Color(23, 88, 154));
      codeTable.add(codeLabel, BorderLayout.NORTH);
      codeTable.add(createTable(true), BorderLayout.SOUTH);
      memoryPanel.add(codeTable);
      codeTable.setBackground(new Color(246, 253, 219));

      JPanel stackTable = new JPanel(new BorderLayout());
      JLabel stackLabel = new JLabel("Stack Segment");
      stackLabel.setForeground(new Color(23, 88, 154));
      stackLabel.setFont(new Font("Helvetica", Font.BOLD, 14));
      stackTable.add(stackLabel, BorderLayout.NORTH);
      stackTable.add(createStackTable(), BorderLayout.SOUTH);
      memoryPanel.add(stackTable);
      memoryPanel.setBackground(new Color(246, 253, 219));
      stackTable.setBackground(new Color(246, 253, 219));

      addInstructions();
      addDataInstructions();

      repaint();
    }
  }
コード例 #5
0
  /**
   * Retrieves program counter
   *
   * @param program assembly language program
   * @return (int) program counter
   */
  public void addInstructions() {

    for (int i = 0; i < simulator.getCodeSegmentFile().size(); i++) {
      boolean end = false;
      String instruction = simulator.getCodeSegmentFile().get(i).toString();

      String label = "";
      String endlabel = "";
      Set<String> table = SymbolTable.getInstance().getSymbolTable().keySet();

      for (String key : table) {
        int location = SymbolTable.getInstance().getLocation(key);
        String type = SymbolTable.getInstance().getType(key);
        if (location == i && type.equals("code")) {
          label = " " + key;
        }
        if (location > (simulator.getCodeSegmentFile().size() - 1)
            && i == simulator.getCodeSegmentFile().size() - 1) {
          endlabel = key;
          end = true;
        }
      }
      String[] temp = {
        (simulator.getCodeSegmentFile().get(i).getSize() * (i + 1)) + " " + label, instruction
      };
      model.addRow(temp);
      if (end) {
        String[] endTemp = {
          (simulator.getCodeSegmentFile().get(i).getSize() * (i + 1) + 2) + " " + endlabel, " "
        };
        model.addRow(endTemp);
      }
    }
  }
コード例 #6
0
 public AssignmentFillIn getAssignmentFillIn() {
   // TODO Auto-generated method stub
   return simulator.getAssignmentFillIn();
 }