Seth Morabito
38a4458aff
- The UI layout has changed, and will likely change again in the future. - Symon can now re-load ROM images from the File menu, under "Load ROM..." - Font size can be changed under the "View" menu
281 lines
9.8 KiB
Java
281 lines
9.8 KiB
Java
/**
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*
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*/
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package com.loomcom.symon.ui;
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import com.loomcom.symon.Cpu;
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import javax.swing.*;
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import javax.swing.border.*;
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import java.awt.*;
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public class StatusPanel extends JPanel {
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private final ImageIcon carryOn;
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private final ImageIcon carryOff;
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private final ImageIcon zeroOn;
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private final ImageIcon zeroOff;
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private final ImageIcon irqOn;
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private final ImageIcon irqOff;
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private final ImageIcon decimalOn;
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private final ImageIcon decimalOff;
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private final ImageIcon breakOn;
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private final ImageIcon breakOff;
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private final ImageIcon overflowOn;
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private final ImageIcon overflowOff;
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private final ImageIcon negativeOn;
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private final ImageIcon negativeOff;
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private final JLabel statusFlagsLabel;
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private final JLabel carryFlagLabel;
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private final JLabel zeroFlagLabel;
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private final JLabel irqDisableFlagLabel;
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private final JLabel decimalModeFlagLabel;
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private final JLabel breakFlagLabel;
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private final JLabel overflowFlagLabel;
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private final JLabel negativeFlagLabel;
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private JTextField opcodeField;
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private JTextField pcField;
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private JTextField spField;
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private JTextField aField;
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private JTextField xField;
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private JTextField yField;
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private final JLabel opcodeLabel;
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private final JLabel pcLabel;
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private final JLabel spLabel;
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private final JLabel aLabel;
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private final JLabel xLabel;
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private final JLabel yLabel;
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private static final int EMPTY_BORDER = 10;
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private static final Border LABEL_BORDER = BorderFactory.createEmptyBorder(0, 5, 0, 0);
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private static final Font LABEL_FONT = new Font(Font.SANS_SERIF, Font.BOLD, 12);
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public StatusPanel() {
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super();
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Border emptyBorder = BorderFactory.createEmptyBorder(EMPTY_BORDER, EMPTY_BORDER,
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EMPTY_BORDER, EMPTY_BORDER);
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Border etchedBorder = BorderFactory.createEtchedBorder(EtchedBorder.LOWERED);
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setBorder(BorderFactory.createCompoundBorder(emptyBorder, etchedBorder));
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GridBagLayout layout = new GridBagLayout();
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GridBagConstraints constraints = new GridBagConstraints();
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setLayout(layout);
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JPanel statusFlagsPanel = new JPanel();
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statusFlagsPanel.setAlignmentX(LEFT_ALIGNMENT);
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carryOn = new ImageIcon(this.getClass().getResource("images/C_on.png"));
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carryOff = new ImageIcon(this.getClass().getResource("images/C_off.png"));
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zeroOn = new ImageIcon(this.getClass().getResource("images/Z_on.png"));
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zeroOff = new ImageIcon(this.getClass().getResource("images/Z_off.png"));
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irqOn = new ImageIcon(this.getClass().getResource("images/I_on.png"));
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irqOff = new ImageIcon(this.getClass().getResource("images/I_off.png"));
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decimalOn = new ImageIcon(this.getClass().getResource("images/D_on.png"));
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decimalOff = new ImageIcon(this.getClass().getResource("images/D_off.png"));
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breakOn = new ImageIcon(this.getClass().getResource("images/B_on.png"));
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breakOff = new ImageIcon(this.getClass().getResource("images/B_off.png"));
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overflowOn = new ImageIcon(this.getClass().getResource("images/O_on.png"));
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overflowOff = new ImageIcon(this.getClass().getResource("images/O_off.png"));
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negativeOn = new ImageIcon(this.getClass().getResource("images/N_on.png"));
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negativeOff = new ImageIcon(this.getClass().getResource("images/N_off.png"));
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// Initialize all to off
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carryFlagLabel = new JLabel(carryOff, JLabel.CENTER);
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zeroFlagLabel = new JLabel(zeroOff, JLabel.CENTER);
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irqDisableFlagLabel = new JLabel(irqOff, JLabel.CENTER);
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decimalModeFlagLabel = new JLabel(decimalOff, JLabel.CENTER);
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breakFlagLabel = new JLabel(breakOff, JLabel.CENTER);
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overflowFlagLabel = new JLabel(overflowOff, JLabel.CENTER);
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negativeFlagLabel = new JLabel(negativeOff, JLabel.CENTER);
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statusFlagsPanel.add(negativeFlagLabel);
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statusFlagsPanel.add(overflowFlagLabel);
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statusFlagsPanel.add(breakFlagLabel);
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statusFlagsPanel.add(decimalModeFlagLabel);
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statusFlagsPanel.add(irqDisableFlagLabel);
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statusFlagsPanel.add(zeroFlagLabel);
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statusFlagsPanel.add(carryFlagLabel);
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// Create and add register and address labels
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statusFlagsLabel = makeLabel("Flags");
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opcodeLabel = makeLabel("IR");
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pcLabel = makeLabel("PC");
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spLabel = makeLabel("SP");
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aLabel = makeLabel("A");
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xLabel = makeLabel("X");
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yLabel = makeLabel("Y");
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opcodeField = makeTextField(LARGE_TEXT_FIELD_SIZE);
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pcField = makeTextField(LARGE_TEXT_FIELD_SIZE);
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spField = makeTextField(SMALL_TEXT_FIELD_SIZE);
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aField = makeTextField(SMALL_TEXT_FIELD_SIZE);
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xField = makeTextField(SMALL_TEXT_FIELD_SIZE);
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yField = makeTextField(SMALL_TEXT_FIELD_SIZE);
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constraints.anchor = GridBagConstraints.LINE_START;
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constraints.gridwidth = 2;
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constraints.gridx = 0;
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constraints.gridy = 0;
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add(statusFlagsLabel, constraints);
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constraints.gridy = 1;
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add(statusFlagsPanel, constraints);
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constraints.insets = new Insets(5, 0, 0, 0);
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constraints.gridy = 2;
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add(opcodeLabel, constraints);
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constraints.insets = new Insets(0, 0, 0, 0);
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constraints.gridy = 3;
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add(opcodeField, constraints);
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constraints.insets = new Insets(5, 0, 0, 0);
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constraints.gridy = 4;
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add(pcLabel, constraints);
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constraints.insets = new Insets(0, 0, 0, 0);
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constraints.gridy = 5;
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add(pcField, constraints);
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constraints.insets = new Insets(5, 0, 0, 0);
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constraints.gridwidth = 1;
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constraints.gridy = 6;
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add(spLabel, constraints);
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constraints.gridx = 1;
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add(aLabel, constraints);
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constraints.insets = new Insets(0, 0, 0, 0);
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constraints.gridx = 0;
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constraints.gridy = 7;
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add(spField, constraints);
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constraints.gridx = 1;
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add(aField, constraints);
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constraints.insets = new Insets(5, 0, 0, 0);
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constraints.gridx = 0;
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constraints.gridy = 8;
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add(yLabel, constraints);
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constraints.gridx = 1;
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add(xLabel, constraints);
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constraints.insets = new Insets(0, 0, 5, 0);
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constraints.gridx = 0;
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constraints.gridy = 9;
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add(xField, constraints);
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constraints.gridx = 1;
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add(yField, constraints);
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}
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/**
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* Update the display based on the current state of the CPU.
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*
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* @param cpu The simulated 6502 CPU.
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*/
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public void updateState(Cpu cpu) {
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// Update the Processor Status Flag display
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int state = cpu.getProcessorStatus();
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carryFlagLabel.setIcon(iconForFlag(state, 0));
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zeroFlagLabel.setIcon(iconForFlag(state, 1));
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irqDisableFlagLabel.setIcon(iconForFlag(state, 2));
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decimalModeFlagLabel.setIcon(iconForFlag(state, 3));
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breakFlagLabel.setIcon(iconForFlag(state, 4));
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overflowFlagLabel.setIcon(iconForFlag(state, 6));
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negativeFlagLabel.setIcon(iconForFlag(state, 7));
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// Update the register and address displays
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opcodeField.setText(cpu.getOpcodeStatus());
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pcField.setText(cpu.getProgramCounterStatus());
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spField.setText(cpu.getStackPointerStatus());
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aField.setText(cpu.getAccumulatorStatus());
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xField.setText(cpu.getXRegisterStatus());
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yField.setText(cpu.getYRegisterStatus());
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repaint();
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}
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private ImageIcon iconForFlag(int state, int flagIndex) {
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ImageIcon imageIcon = null;
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if ((((state & 0xff) >> flagIndex) & 0x01) == 1) {
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switch (flagIndex) {
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case 0:
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imageIcon = carryOn;
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break;
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case 1:
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imageIcon = zeroOn;
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break;
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case 2:
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imageIcon = irqOn;
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break;
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case 3:
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imageIcon = decimalOn;
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break;
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case 4:
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imageIcon = breakOn;
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break;
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case 6:
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imageIcon = overflowOn;
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break;
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case 7:
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imageIcon = negativeOn;
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break;
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}
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} else {
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switch (flagIndex) {
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case 0:
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imageIcon = carryOff;
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break;
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case 1:
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imageIcon = zeroOff;
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break;
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case 2:
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imageIcon = irqOff;
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break;
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case 3:
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imageIcon = decimalOff;
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break;
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case 4:
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imageIcon = breakOff;
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break;
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case 6:
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imageIcon = overflowOff;
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break;
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case 7:
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imageIcon = negativeOff;
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break;
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}
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}
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return imageIcon;
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}
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private JLabel makeLabel(String text) {
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JLabel label = new JLabel(text);
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label.setAlignmentX(LEFT_ALIGNMENT);
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label.setBorder(LABEL_BORDER);
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label.setFont(LABEL_FONT);
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return label;
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}
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private static final Dimension LARGE_TEXT_FIELD_SIZE = new Dimension(134, 22);
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private static final Dimension SMALL_TEXT_FIELD_SIZE = new Dimension(65, 22);
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private JTextField makeTextField(Dimension size) {
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JTextField textField = new JTextField("");
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textField.setAlignmentX(LEFT_ALIGNMENT);
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textField.setEditable(false);
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textField.setMinimumSize(size);
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textField.setMaximumSize(size);
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textField.setPreferredSize(size);
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return textField;
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}
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}
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