📄 box.java
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else if ( eventSource == viewTraceButton )
{
if ( resultsDialog != null )
{
// Opens trace results window
traceDialog.setVisible( true );
}
else
{
showStatus( "No results to report!" );
}
}
else if ( eventSource == viewCPUButton )
{
// Opens CPU window
CPUBox.setVisible( true );
}
else if ( eventSource == viewMemoryButton )
{
// Opens memory window
// CPUBox.getMemory().setLocation( 568, 0 );
CPUBox.getMemory().setVisible( true );
}
// else if ( eventSource == viewALUButton )
// {
// Opens alu window
// CPUBox.aluBox.setLocation( 568, 295 );
// CPUBox.aluBox.setVisible( true );
// }
else if ( eventSource == viewControlUnitButton )
{
if ( selectCU.getSelectedCheckbox().equals( hardWiredCU ) )
{
// Opens hardwired control unit window
// CPUBox.controlUnit.setLocation( 700, 200 );
// Kills other CU window if it exists
CPUBox.mcu.setVisible( false );
CPUBox.mcu.setActive( false );
// Displays the Hardwired CU
CPUBox.controlUnit.setVisible( true );
CPUBox.controlUnit.setActive( true );
}
else if ( selectCU.getSelectedCheckbox().equals(
microCodedCU ) )
{
// Opens microcoded control unit window
// CPUBox.mcu.setLocation( 700, 200 );
// Kills other CU window if it exists
CPUBox.controlUnit.setVisible( false );
CPUBox.controlUnit.setActive( false );
// Displays the MicroCoded CU
CPUBox.mcu.setVisible( true );
CPUBox.mcu.setActive( true );
}
}
else if ( eventSource == clearMemoryButton )
{
if ( ! CPUBox.isRunning() )
{
Memory memory = CPUBox.getMemory();
// Clears memory contents
memory.clear();
if ( memory.isShowing() )
{
memory.repaint();
}
}
}
else if ( eventSource == viewBreakpointsButton )
{
// Opens breakpoints window
CPUBox.getBreakpoints().setVisible( true );
}
else if ( eventSource == helpButton )
{
// Opens help window
URL codeBaseURL = getCodeBase();
URL helpURL;
try
{
helpURL = new URL( codeBaseURL.toString() + "help/index.html" );
getAppletContext().showDocument( helpURL, "_blank" );
}
catch ( Exception e ) { }
}
else if ( eventSource == aboutButton )
{
new AboutDialogue().show();
}
else if ( eventSource == sampleButton )
{
// Opens help window
URL codeBaseURL = getCodeBase();
URL sampleURL;
try
{
sampleURL = new URL( codeBaseURL.toString() + "help/sample.html" );
getAppletContext().showDocument( sampleURL, "_blank" );
}
catch ( Exception e ) { }
}
}
public AssemblyResults getAssemblyResults()
{
return ( results );
}
public CPU getCPU()
{
return ( CPUBox );
}
public void disableComponents()
{
assembleButton.setEnabled( false );
hardWiredCU.setEnabled( false );
microCodedCU.setEnabled( false );
clearMemoryButton.setEnabled( false );
}
public void enableComponents()
{
assembleButton.setEnabled( true );
hardWiredCU.setEnabled( true );
microCodedCU.setEnabled( true );
clearMemoryButton.setEnabled( true );
}
public Frame getFrame()
{
Component c = this;
Frame f = null;
while ( ( c = c.getParent() ) != null )
{
if ( c instanceof Frame )
{
f = ( Frame ) c;
}
}
return ( f );
}
public int FindNthRowStart(int N,String Text){
if(N==1){
return 0;
}else{
int i=-1;
int j=1;
while(j!=N){
i=Text.indexOf("\n",i+1);
j++;
}
return i+1;
}
}
public int FindNthRowEnd(int N,String Text){
int i=-1;
int j=1;
while(j!=N+1){
i=Text.indexOf("\n",i+1);
j++;
}
if(i==-1){
return Text.length()-1;
}else{
return i-1;
}
}
public CheckboxGroup selectCU = new CheckboxGroup();
public Checkbox hardWiredCU = new Checkbox( "Hardwired", true, selectCU );
public Checkbox microCodedCU = new Checkbox( "Microprogrammed", false, selectCU );
public Button assembleButton = new Button( " Assemble " );
public Button viewResultsButton = new Button( " View Results " );
private TextArea programBox;
private Button viewCPUButton = new Button( "View Register Section" );
private Button viewTraceButton = new Button( " View Trace " );
private Button viewMemoryButton = new Button( " View Memory " );
private Button helpButton = new Button( " Help " );
private Button aboutButton = new Button( " About " );
private Button sampleButton = new Button( "Sample Program" );
// private Button viewALUButton = new Button( "View ALU" );
private Button viewControlUnitButton = new Button( "View Control Unit" );
private Button clearMemoryButton = new Button( " Clear Memory " );
private Button viewBreakpointsButton = new Button( "View Breakpoints" );
private Label label = new Label( "Memory Location:" );
private Label space = new Label( "" );
private Label space2 = new Label( " " );
private Label cuType = new Label( "Control Unit Type" );
private Label space3 = new Label( " " );
private TextArea Msg= new TextArea("Welcome to the Simple CPU Simulator. To start using the simulator type\n in a program followed by the memory location and press assemble.\nAfterwards click on View Register Section and choose run from the menu to start the simulation.", 4, 60,TextArea.SCROLLBARS_NONE);
//private Container Cont=new Container();
private TextField memoryLocation = new TextField( 5 );
// Results of the assembly process
private AssemblyResults results;
private AssemblyResultsDialog resultsDialog = null;
// Declare object of type CPU, from CPU.class
private CPU CPUBox;
static String newline = System.getProperty("line.separator");
public TraceResults traceDialog;
class AboutDialogue extends javax.swing.JFrame implements HyperlinkListener {
/** Creates new form About */
public AboutDialogue() {
initComponents();
this.setSize(new java.awt.Dimension(500, 350));
this.setBackground(Color.white);
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
Dimension DialogSize = getSize();
Point DialogLocation = new Point( ( screenSize.width
- DialogSize.width ) / 2, ( screenSize.height -
DialogSize.height ) / 2 );
setLocation( DialogLocation );
}
//Listens for hyperlink clicks
public void hyperlinkUpdate(HyperlinkEvent event) {
if (event.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
try
{
getAppletContext().showDocument( event.getURL(), "_blank" );
}
catch ( Exception e ) { }
}
}
/** This method is called from within the constructor to
* initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/
private void initComponents() {
AboutLabel = new javax.swing.JLabel();
LowerPanel = new javax.swing.JPanel();
OkButton = new javax.swing.JButton();
CentralPane = new javax.swing.JScrollPane();
MainText = new javax.swing.JEditorPane();
setTitle("About The Very Simple CPU Simulatorr");
setBackground(Color.white);
addWindowListener(new java.awt.event.WindowAdapter() {
public void windowClosing(java.awt.event.WindowEvent evt) {
exitForm(evt);
}
});
AboutLabel.setHorizontalAlignment(javax.swing.SwingConstants.CENTER);
AboutLabel.setText("About The Very Simple CPU Simulator");
AboutLabel.setMaximumSize(new java.awt.Dimension(41, 55));
AboutLabel.setMinimumSize(new java.awt.Dimension(41, 55));
AboutLabel.setPreferredSize(new java.awt.Dimension(41, 35));
AboutLabel.setOpaque(false);
AboutLabel.setBackground(Color.white);
getContentPane().add(AboutLabel, java.awt.BorderLayout.NORTH);
LowerPanel.setPreferredSize(new java.awt.Dimension(10, 45));
LowerPanel.setOpaque(false);
LowerPanel.setBackground(Color.white);
OkButton.setText("Ok");
OkButton.setPreferredSize(new java.awt.Dimension(100, 26));
OkButton.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
OkButtonActionPerformed(evt);
}
});
LowerPanel.add(OkButton);
getContentPane().add(LowerPanel, java.awt.BorderLayout.SOUTH);
CentralPane.setPreferredSize(new java.awt.Dimension(177, 150));
CentralPane.getViewport().setOpaque(false);
CentralPane.getVerticalScrollBar().setValue(0);
String AboutText="<html>\n<body><b>The Very Simple CPU Simulator</b><br><br>Copyright 2001-2003, New Jersey Institute of Technology, Newark, NJ, USA<br><br>\n";
AboutText+="This program and its source code are made freely available under<br> the terms of the GNU General Public License. Terms<br> of this license can be found at <a href='http://www.gnu.org'>www.gnu.org</a>.<br><br>\n";
AboutText+="The latest version of this program and its source code, as well as<br> other simulators developed for use with the textbook <i>Computer Systems<br> Organization and Architecture</i>, can be found at <a href='http://www.awl.com/carpinelli'>www.awl.com/carpinelli</a>.<br><br>\n";
AboutText+="Development of this program was funded in part by the National<br> Science Foundation through the <a href='http://www.gatewaycoalition.org/'>Gateway Engineering Education Coalition</a>.<br> Additional funding was supplied by the <a href='http://www.njcmr.org/'>New Jersey Center for Multimedia Research</a>.<br><br>\n";
AboutText+="Developers: David England, Aleksandr Livshits, and John D. Carpinelli.\n</body></html>";
MainText.setEditable(false);
MainText.setContentType("text/html");
MainText.setText(AboutText);
MainText.setCaretPosition(0);
//MainText.setVerticalAlignment(javax.swing.SwingConstants.TOP);
MainText.setOpaque(false);
MainText.setBackground(Color.white);
MainText.addHyperlinkListener(this);
CentralPane.setViewportView(MainText);
getContentPane().add(CentralPane, java.awt.BorderLayout.CENTER);
pack();
}
private void OkButtonActionPerformed(java.awt.event.ActionEvent evt) {
// Add your handling code here:
this.hide();
}
/** Exit the Application */
private void exitForm(java.awt.event.WindowEvent evt) {
System.exit(0);
}
// Variables declaration - do not modify
private javax.swing.JButton OkButton;
private javax.swing.JPanel LowerPanel;
private javax.swing.JLabel AboutLabel;
private javax.swing.JScrollPane CentralPane;
private javax.swing.JEditorPane MainText;
// End of variables declaration
}
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