Source code of MARS Assembler
First commit of the 4.5 version (latest version available)
This commit is contained in:
adolphenom
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package mars.venus;
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import mars.*;
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import mars.assembler.*;
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import mars.mips.instructions.*;
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import java.util.*;
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import java.io.*;
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import java.awt.*;
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import java.awt.event.*;
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import javax.swing.*;
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import javax.swing.event.*;
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import javax.swing.text.html.*;
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/*
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Copyright (c) 2003-2008, Pete Sanderson and Kenneth Vollmar
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Developed by Pete Sanderson (psanderson@otterbein.edu)
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and Kenneth Vollmar (kenvollmar@missouristate.edu)
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject
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to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
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ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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(MIT license, http://www.opensource.org/licenses/mit-license.html)
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*/
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/**
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* Action for the Help -> Help menu item
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*/
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public class HelpHelpAction extends GuiAction {
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public HelpHelpAction(String name, Icon icon, String descrip,
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Integer mnemonic, KeyStroke accel, VenusUI gui) {
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super(name, icon, descrip, mnemonic, accel, gui);
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}
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// ideally read or computed from config file...
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private Dimension getSize() {
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return new Dimension(800,600);
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}
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// Light gray background color for alternating lines of the instruction lists
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static Color altBackgroundColor = new Color(0xEE,0xEE,0xEE);
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/**
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* Separates Instruction name descriptor from detailed (operation) description
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* in help string.
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*/
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public static final String descriptionDetailSeparator = ":";
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/**
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* Displays tabs with categories of information
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*/
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public void actionPerformed(ActionEvent e) {
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JTabbedPane tabbedPane = new JTabbedPane();
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tabbedPane.addTab("MIPS", createMipsHelpInfoPanel());
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tabbedPane.addTab("MARS", createMarsHelpInfoPanel());
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tabbedPane.addTab("License", createCopyrightInfoPanel());
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tabbedPane.addTab("Bugs/Comments", createHTMLHelpPanel("BugReportingHelp.html"));
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tabbedPane.addTab("Acknowledgements", createHTMLHelpPanel("Acknowledgements.html"));
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tabbedPane.addTab("Instruction Set Song", createHTMLHelpPanel("MIPSInstructionSetSong.html"));
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// Create non-modal dialog. Based on java.sun.com "How to Make Dialogs", DialogDemo.java
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final JDialog dialog = new JDialog(mainUI, "MARS "+Globals.version+" Help");
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// assure the dialog goes away if user clicks the X
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dialog.addWindowListener(
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new WindowAdapter() {
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public void windowClosing(WindowEvent e) {
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dialog.setVisible(false);
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dialog.dispose();
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}
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});
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//Add a "close" button to the non-modal help dialog.
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JButton closeButton = new JButton("Close");
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closeButton.addActionListener(
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new ActionListener() {
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public void actionPerformed(ActionEvent e) {
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dialog.setVisible(false);
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dialog.dispose();
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}
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});
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JPanel closePanel = new JPanel();
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closePanel.setLayout(new BoxLayout(closePanel,BoxLayout.LINE_AXIS));
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closePanel.add(Box.createHorizontalGlue());
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closePanel.add(closeButton);
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closePanel.add(Box.createHorizontalGlue());
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closePanel.setBorder(BorderFactory.createEmptyBorder(0,0,5,5));
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JPanel contentPane = new JPanel();
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contentPane.setLayout(new BoxLayout(contentPane,BoxLayout.PAGE_AXIS));
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contentPane.add(tabbedPane);
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contentPane.add(Box.createRigidArea(new Dimension(0,5)));
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contentPane.add(closePanel);
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contentPane.setOpaque(true);
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dialog.setContentPane(contentPane);
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//Show it.
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dialog.setSize(this.getSize());
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dialog.setLocationRelativeTo(mainUI);
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dialog.setVisible(true);
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//////////////////////////////////////////////////////////////////
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}
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// Create panel containing Help Info read from html document.
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private JPanel createHTMLHelpPanel(String filename) {
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JPanel helpPanel = new JPanel(new BorderLayout());
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JScrollPane helpScrollPane;
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JEditorPane helpDisplay;
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try {
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InputStream is = this.getClass().getResourceAsStream(Globals.helpPath+filename);
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BufferedReader in = new BufferedReader(new InputStreamReader(is));
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String line;
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StringBuffer text = new StringBuffer();
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while ( (line=in.readLine()) != null ) {
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text.append(line+"\n");
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}
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in.close();
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helpDisplay = new JEditorPane("text/html",text.toString());
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helpDisplay.setEditable(false);
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helpDisplay.setCaretPosition(0); // assure top of document displayed
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helpScrollPane = new JScrollPane(helpDisplay, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
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JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
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helpDisplay.addHyperlinkListener(new HelpHyperlinkListener());
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}
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catch (Exception ie) {
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helpScrollPane = new JScrollPane(
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new JLabel("Error ("+ie+"): "+filename+" contents could not be loaded."));
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}
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helpPanel.add(helpScrollPane);
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return helpPanel;
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}
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// Set up the copyright notice for display.
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private JPanel createCopyrightInfoPanel() {
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JPanel marsCopyrightInfo = new JPanel(new BorderLayout());
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JScrollPane marsCopyrightScrollPane;
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JEditorPane marsCopyrightDisplay;
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try {
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InputStream is = this.getClass().getResourceAsStream("/MARSlicense.txt");
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BufferedReader in = new BufferedReader(new InputStreamReader(is));
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String line;
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StringBuffer text = new StringBuffer("<pre>");
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while ( (line=in.readLine()) != null ) {
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text.append(line+"\n");
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}
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in.close();
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text.append("</pre>");
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marsCopyrightDisplay = new JEditorPane("text/html",text.toString());
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marsCopyrightDisplay.setEditable(false);
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marsCopyrightDisplay.setCaretPosition(0); // assure top of document displayed
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marsCopyrightScrollPane = new JScrollPane(marsCopyrightDisplay, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
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JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
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}
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catch (Exception ioe) {
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marsCopyrightScrollPane = new JScrollPane(
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new JLabel("Error: license contents could not be loaded."));
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}
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marsCopyrightInfo.add(marsCopyrightScrollPane);
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return marsCopyrightInfo;
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}
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// Set up MARS help tab. Subtabs get their contents from HTML files.
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private JPanel createMarsHelpInfoPanel() {
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JPanel marsHelpInfo = new JPanel(new BorderLayout());
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JTabbedPane tabbedPane = new JTabbedPane();
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tabbedPane.addTab("Intro", createHTMLHelpPanel("MarsHelpIntro.html"));
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tabbedPane.addTab("IDE", createHTMLHelpPanel("MarsHelpIDE.html"));
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tabbedPane.addTab("Debugging", createHTMLHelpPanel("MarsHelpDebugging.html"));
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tabbedPane.addTab("Settings", createHTMLHelpPanel("MarsHelpSettings.html"));
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tabbedPane.addTab("Tools", createHTMLHelpPanel("MarsHelpTools.html"));
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tabbedPane.addTab("Command", createHTMLHelpPanel("MarsHelpCommand.html"));
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tabbedPane.addTab("Limits", createHTMLHelpPanel("MarsHelpLimits.html"));
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tabbedPane.addTab("History", createHTMLHelpPanel("MarsHelpHistory.html"));
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marsHelpInfo.add(tabbedPane);
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return marsHelpInfo;
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}
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// Set up MIPS help tab. Most contents are generated from instruction set info.
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private JPanel createMipsHelpInfoPanel() {
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JPanel mipsHelpInfo = new JPanel(new BorderLayout());
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String helpRemarksColor = "CCFF99";
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// Introductory remarks go at the top as a label
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String helpRemarks =
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"<html><center><table bgcolor=\"#"+helpRemarksColor+"\" border=0 cellpadding=0>"+// width="+this.getSize().getWidth()+">"+
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"<tr>"+
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"<th colspan=2><b><i><font size=+1> Operand Key for Example Instructions </font></i></b></th>"+
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"</tr>"+
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"<tr>"+
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"<td><tt>label, target</tt></td><td>any textual label</td>"+
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"</tr><tr>"+
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"<td><tt>$t1, $t2, $t3</tt></td><td>any integer register</td>" +
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"</tr><tr>"+
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"<td><tt>$f2, $f4, $f6</tt></td><td><i>even-numbered</i> floating point register</td>"+
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"</tr><tr>"+
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"<td><tt>$f0, $f1, $f3</tt></td><td><i>any</i> floating point register</td>"+
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"</tr><tr>"+
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"<td><tt>$8</tt></td><td>any Coprocessor 0 register</td>"+
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"</tr><tr>"+
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"<td><tt>1</tt></td><td>condition flag (0 to 7)</td>" +
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"</tr><tr>"+
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"<td><tt>10</tt></td><td>unsigned 5-bit integer (0 to 31)</td>"+
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"</tr><tr>" +
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"<td><tt>-100</tt></td><td>signed 16-bit integer (-32768 to 32767)</td>" +
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"</tr><tr>" +
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"<td><tt>100</tt></td><td>unsigned 16-bit integer (0 to 65535)</td>" +
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"</tr><tr>" +
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"<td><tt>100000</tt></td><td>signed 32-bit integer (-2147483648 to 2147483647)</td>" +
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"</tr><tr>" +
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"</tr><tr>" +
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"<td colspan=2><b><i><font size=+1>Load & Store addressing mode, basic instructions</font></i></b></td>" +
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"</tr><tr>" +
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"<td><tt>-100($t2)</tt></td><td>sign-extended 16-bit integer added to contents of $t2</td>" +
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"</tr><tr>" +
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"</tr><tr>" +
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"<td colspan=2><b><i><font size=+1>Load & Store addressing modes, pseudo instructions</font></i></b></td>" +
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"</tr><tr>" +
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"<td><tt>($t2)</tt></td><td>contents of $t2</td>" +
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"</tr><tr>" +
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"<td><tt>-100</tt></td><td>signed 16-bit integer</td>" +
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"</tr><tr>" +
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"<td><tt>100</tt></td><td>unsigned 16-bit integer</td>" +
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"</tr><tr>" +
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"<td><tt>100000</tt></td><td>signed 32-bit integer</td>" +
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"</tr><tr>" +
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"<td><tt>100($t2)</tt></td><td>zero-extended unsigned 16-bit integer added to contents of $t2</td>" +
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"</tr><tr>" +
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"<td><tt>100000($t2)</tt></td><td>signed 32-bit integer added to contents of $t2</td>" +
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"</tr><tr>" +
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"<td><tt>label</tt></td><td>32-bit address of label</td>" +
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"</tr><tr>" +
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"<td><tt>label($t2)</tt></td><td>32-bit address of label added to contents of $t2</td>" +
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"</tr><tr>" +
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"<td><tt>label+100000</tt></td><td>32-bit integer added to label's address</td>" +
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"</tr><tr>" +
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"<td><tt>label+100000($t2) </tt></td><td>sum of 32-bit integer, label's address, and contents of $t2</td>"+
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"</tr>" +
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"</table></center></html>";
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// Original code: mipsHelpInfo.add(new JLabel(helpRemarks, JLabel.CENTER), BorderLayout.NORTH);
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JLabel helpRemarksLabel = new JLabel(helpRemarks, JLabel.CENTER);
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helpRemarksLabel.setOpaque(true);
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helpRemarksLabel.setBackground(Color.decode("0x"+helpRemarksColor));
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JScrollPane operandsScrollPane = new JScrollPane(helpRemarksLabel, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
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JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
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mipsHelpInfo.add(operandsScrollPane, BorderLayout.NORTH);
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// Below the label is a tabbed pane with categories of MIPS help
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JTabbedPane tabbedPane = new JTabbedPane();
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tabbedPane.addTab("Basic Instructions", createMipsInstructionHelpPane("mars.mips.instructions.BasicInstruction"));
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tabbedPane.addTab("Extended (pseudo) Instructions", createMipsInstructionHelpPane("mars.mips.instructions.ExtendedInstruction"));
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tabbedPane.addTab("Directives", createMipsDirectivesHelpPane());
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tabbedPane.addTab("Syscalls", createHTMLHelpPanel("SyscallHelp.html"));
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tabbedPane.addTab("Exceptions", createHTMLHelpPanel("ExceptionsHelp.html"));
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tabbedPane.addTab("Macros", createHTMLHelpPanel("MacrosHelp.html"));
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operandsScrollPane.setPreferredSize(new Dimension((int)this.getSize().getWidth(), (int) (this.getSize().getHeight()*.2)));
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operandsScrollPane.getVerticalScrollBar().setUnitIncrement(10);
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tabbedPane.setPreferredSize(new Dimension((int)this.getSize().getWidth(), (int) (this.getSize().getHeight()*.6)));
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JSplitPane splitsville = new JSplitPane(JSplitPane.VERTICAL_SPLIT, operandsScrollPane, tabbedPane);
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splitsville.setOneTouchExpandable(true);
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splitsville.resetToPreferredSizes();
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mipsHelpInfo.add(splitsville);
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//mipsHelpInfo.add(tabbedPane);
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return mipsHelpInfo;
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}
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/////////////// Methods to construct MIPS help tabs from internal MARS objects //////////////
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/////////////////////////////////////////////////////////////////////////////
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private JScrollPane createMipsDirectivesHelpPane() {
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Vector exampleList = new Vector();
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String blanks = " "; // 12 blanks
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Directives direct;
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Iterator it = Directives.getDirectiveList().iterator();
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while (it.hasNext()) {
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direct = (Directives)it.next();
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exampleList.add(direct.toString()
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+ blanks.substring(0,Math.max(0,blanks.length()-direct.toString().length()))
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+ direct.getDescription());
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}
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Collections.sort(exampleList);
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JList examples = new JList(exampleList);
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JScrollPane mipsScrollPane = new JScrollPane(examples,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
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JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
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examples.setFont(new Font("Monospaced",Font.PLAIN,12));
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return mipsScrollPane;
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}
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////////////////////////////////////////////////////////////////////////////
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private JScrollPane createMipsInstructionHelpPane(String instructionClassName) {
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ArrayList instructionList = Globals.instructionSet.getInstructionList();
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Vector exampleList = new Vector(instructionList.size());
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Iterator it = instructionList.iterator();
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Instruction instr;
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String blanks = " "; // 24 blanks
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Class instructionClass;
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while (it.hasNext()) {
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instr = (Instruction) it.next();
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try {
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if (Class.forName(instructionClassName).isInstance(instr)) {
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exampleList.add(instr.getExampleFormat()
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+ blanks.substring(0,Math.max(0,blanks.length()-instr.getExampleFormat().length()))
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+ instr.getDescription());
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}
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}
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catch (ClassNotFoundException cnfe) {
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System.out.println(cnfe+" "+instructionClassName);
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}
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}
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Collections.sort(exampleList);
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JList examples = new JList(exampleList);
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JScrollPane mipsScrollPane = new JScrollPane(examples,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
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JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
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examples.setFont(new Font("Monospaced",Font.PLAIN,12));
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examples.setCellRenderer(new MyCellRenderer());
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return mipsScrollPane;
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}
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private class MyCellRenderer extends JLabel implements ListCellRenderer {
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// This is the only method defined by ListCellRenderer.
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// We just reconfigure the JLabel each time we're called.
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public Component getListCellRendererComponent(
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JList list, // the list
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Object value, // value to display
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int index, // cell index
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boolean isSelected, // is the cell selected
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boolean cellHasFocus) // does the cell have focus
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{
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String s = value.toString();
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setText(s);
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if (isSelected) {
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setBackground(list.getSelectionBackground());
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setForeground(list.getSelectionForeground());
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}
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else {
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setBackground((index % 2 == 0) ? altBackgroundColor : list.getBackground());
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setForeground(list.getForeground());
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}
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setEnabled(list.isEnabled());
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setFont(list.getFont());
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setOpaque(true);
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return this;
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}
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}
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/*
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* Determines MARS response when user click on hyperlink in displayed help page.
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* The response will be to pop up a simple dialog with the page contents. It
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* will not display URL, no navigation, nothing. Just display the page and
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* provide a Close button.
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*/
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private class HelpHyperlinkListener implements HyperlinkListener {
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JDialog webpageDisplay;
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JTextField webpageURL;
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private static final String cannotDisplayMessage =
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"<html><title></title><body><strong>Unable to display requested document.</strong></body></html>";
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public void hyperlinkUpdate(HyperlinkEvent e) {
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if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
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JEditorPane pane = (JEditorPane) e.getSource();
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if (e instanceof HTMLFrameHyperlinkEvent) {
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HTMLFrameHyperlinkEvent evt = (HTMLFrameHyperlinkEvent)e;
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HTMLDocument doc = (HTMLDocument)pane.getDocument();
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doc.processHTMLFrameHyperlinkEvent(evt);
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||||
}
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else {
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webpageDisplay = new JDialog(mainUI, "Primitive HTML Viewer");
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webpageDisplay.setLayout(new BorderLayout());
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||||
webpageDisplay.setLocation(mainUI.getSize().width/6, mainUI.getSize().height/6);
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||||
JEditorPane webpagePane;
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||||
try {
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||||
webpagePane = new JEditorPane(e.getURL());
|
||||
}
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||||
catch (Throwable t) {
|
||||
webpagePane = new JEditorPane("text/html",cannotDisplayMessage);
|
||||
}
|
||||
webpagePane.addHyperlinkListener(
|
||||
new HyperlinkListener() {
|
||||
public void hyperlinkUpdate(HyperlinkEvent e) {
|
||||
if (e.getEventType() == HyperlinkEvent.EventType.ACTIVATED) {
|
||||
JEditorPane pane = (JEditorPane) e.getSource();
|
||||
if (e instanceof HTMLFrameHyperlinkEvent) {
|
||||
HTMLFrameHyperlinkEvent evt = (HTMLFrameHyperlinkEvent)e;
|
||||
HTMLDocument doc = (HTMLDocument)pane.getDocument();
|
||||
doc.processHTMLFrameHyperlinkEvent(evt);
|
||||
}
|
||||
else {
|
||||
try {
|
||||
pane.setPage(e.getURL());
|
||||
}
|
||||
catch (Throwable t) {
|
||||
pane.setText(cannotDisplayMessage);
|
||||
}
|
||||
webpageURL.setText(e.getURL().toString());
|
||||
}
|
||||
}
|
||||
}
|
||||
});
|
||||
webpagePane.setPreferredSize(new Dimension(mainUI.getSize().width*2/3, mainUI.getSize().height*2/3));
|
||||
webpagePane.setEditable(false);
|
||||
webpagePane.setCaretPosition(0);
|
||||
JScrollPane webpageScrollPane = new JScrollPane(webpagePane,
|
||||
JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED,
|
||||
JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
|
||||
webpageURL = new JTextField(e.getURL().toString(), 50);
|
||||
webpageURL.setEditable(false);
|
||||
webpageURL.setBackground(Color.WHITE);
|
||||
JPanel URLPanel= new JPanel(new FlowLayout(FlowLayout.LEFT, 4, 4));
|
||||
URLPanel.add(new JLabel("URL: "));
|
||||
URLPanel.add(webpageURL);
|
||||
webpageDisplay.add(URLPanel, BorderLayout.NORTH);
|
||||
webpageDisplay.add(webpageScrollPane);
|
||||
JButton closeButton = new JButton("Close");
|
||||
closeButton.addActionListener(
|
||||
new ActionListener() {
|
||||
public void actionPerformed(ActionEvent e) {
|
||||
webpageDisplay.setVisible(false);
|
||||
webpageDisplay.dispose();
|
||||
}
|
||||
});
|
||||
JPanel closePanel = new JPanel();
|
||||
closePanel.setLayout(new BoxLayout(closePanel,BoxLayout.LINE_AXIS));
|
||||
closePanel.setBorder(BorderFactory.createEmptyBorder(0,0,5,5));
|
||||
closePanel.add(Box.createHorizontalGlue());
|
||||
closePanel.add(closeButton);
|
||||
closePanel.add(Box.createHorizontalGlue());
|
||||
webpageDisplay.add(closePanel,BorderLayout.SOUTH);
|
||||
webpageDisplay.pack();
|
||||
webpageDisplay.setVisible(true);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user