private void DisassemblyDisplay_Paint(object sender, PaintEventArgs e)
{
Font font = new Font(FontFamily.GenericMonospace, 12);
e.Graphics.FillRectangle(Brushes.White, this.ClientRectangle);
if (this.DesignMode)
{
e.Graphics.DrawRectangle(Pens.Black, new Rectangle(0, 0, this.Width - 1, this.Height - 1));
return;
}
FastDisassembler disassembler = new FastDisassembler(Debugger.KnownLabels);
Disassembly = disassembler.FastDisassemble(ref CPU.Memory, SelectedAddress, (ushort)(SelectedAddress + 100));
int index = 0;
bool setLast = false, dark = SelectedAddress % 2 == 0;
Size baseFontSize = TextRenderer.MeasureText("0000", font);
Size addressFontSize;
for (int y = 0; y < this.Height; y += baseFontSize.Height + 2)
{
string address = Debugger.GetHexString(Disassembly[index].Address, 4) + ": ";
addressFontSize = TextRenderer.MeasureText(address, font);
Brush foreground = Brushes.Black;
if (dark)
e.Graphics.FillRectangle(new SolidBrush(Color.FromArgb(255, 230, 230, 230)), new Rectangle(0, y, this.Width, addressFontSize.Height + 2));
dark = !dark;
int breakPointCount = CPU.Breakpoints.Where(b => b.Address == Disassembly[index].Address).Count();
if (breakPointCount != 0)
{
e.Graphics.FillRectangle(Brushes.DarkRed, new Rectangle(0, y, this.Width, addressFontSize.Height + 2));
foreground = Brushes.White;
}
if (Disassembly[index].Address == CPU.PC)
{
if (breakPointCount != 0)
{
if (Disassembly[index].IsLabel)
e.Graphics.FillRectangle(Brushes.Yellow, new Rectangle(0, y + 2, this.Width, addressFontSize.Height));
else
{
if (index != 0)
{
if (Disassembly[index - 1].IsLabel)
e.Graphics.FillRectangle(Brushes.Yellow, new Rectangle(0, y, this.Width, addressFontSize.Height));
else
e.Graphics.FillRectangle(Brushes.Yellow, new Rectangle(0, y + 2, this.Width, addressFontSize.Height - 2));
}
else
e.Graphics.FillRectangle(Brushes.Yellow, new Rectangle(0, y + 2, this.Width, addressFontSize.Height - 2));
}
}
else
e.Graphics.FillRectangle(Brushes.Yellow, new Rectangle(0, y, this.Width, addressFontSize.Height + 2));
foreground = Brushes.Black;
}
e.Graphics.DrawString(address, font, Brushes.Gray, 2, y);
if (!Debugger.KnownCode.ContainsKey(Disassembly[index].Address) || Disassembly[index].IsLabel)
e.Graphics.DrawString(Disassembly[index].Code, font, foreground, 2 + addressFontSize.Width + 3, y);
else
e.Graphics.DrawString(Debugger.KnownCode[Disassembly[index].Address], font, foreground,
2 + addressFontSize.Width + 3, y );
if(y + addressFontSize.Height > this.Height)
{
setLast = true;
EndAddress = Disassembly[index].Address;
}
index++;
}
if (!setLast)
EndAddress = Disassembly[index--].Address;
index = 0;
if (IsMouseWithin && !CPU.IsRunning) // TODO: Make this more versatile, probably integrate with organic
{
int x = MouseLocation.X;
for( int y = 0; y < this.Height; y += baseFontSize.Height + 2 )
{
if (Disassembly[index].IsLabel || Disassembly[index].Code.StartsWith("DAT"))
{
index++;
continue;
}
Size size = TextRenderer.MeasureText("0000: " + Disassembly[index].Code, font);
size.Width += 5;
if (new Rectangle(new Point(0, y), size).IntersectsWith(
new Rectangle(new Point(x, MouseLocation.Y), new Size(1, 1))))
{
ushort oldPC = CPU.PC;
ushort oldSP = CPU.SP;
CPU.PC = (ushort)(Disassembly[index].Address + 1);
int valueA = 0, valueB = 0;
ushort valueAcalc = CPU.Get(Disassembly[index].ValueA);
ushort valueBcalc = CPU.Get(Disassembly[index].ValueB);
if (Disassembly[index].Opcode == 0)
{
valueB = int.MaxValue;
valueA = TextRenderer.MeasureText("0000: " + Disassembly[index].OpcodeText + " ", font).Width + 4;
}
else
{
valueB = TextRenderer.MeasureText("0000: " + Disassembly[index].OpcodeText + " ", font).Width + 4;
valueA = valueB + TextRenderer.MeasureText(Disassembly[index].ValueBText + ", ", font).Width - 8;
}
if (x >= valueB && x <= valueA)
{
// hovering over value B
if (Disassembly[index].ValueB <= 0x1E)
{
e.Graphics.FillRectangle(Brushes.LightBlue, new Rectangle(new Point(valueB, y),
TextRenderer.MeasureText(Disassembly[index].ValueBText, font)));
e.Graphics.DrawString(Disassembly[index].ValueBText, font, Brushes.Black, new PointF(valueB, y));
int locationY = y + size.Height;
if (this.Height / 2 < y)
locationY = y - size.Height;
string text = Disassembly[index].ValueBText + " = 0x" + Debugger.GetHexString(valueBcalc, 4);
Size hoverSize = TextRenderer.MeasureText(text, font);
e.Graphics.FillRectangle(Brushes.LightBlue, new Rectangle(new Point(
(valueB + (TextRenderer.MeasureText(Disassembly[index].ValueBText, font).Width / 2)) -
(hoverSize.Width / 2), locationY), hoverSize));
e.Graphics.DrawString(text, font, Brushes.Black, new Point(
(valueB + (TextRenderer.MeasureText(Disassembly[index].ValueBText, font).Width / 2)) -
(hoverSize.Width / 2), locationY));
}
}
else if (x >= valueA)
{
// hovering over value A
if (Disassembly[index].ValueA <= 0x1E)
{
e.Graphics.FillRectangle(Brushes.LightBlue, new Rectangle(new Point(valueA, y),
TextRenderer.MeasureText(Disassembly[index].ValueAText, font)));
e.Graphics.DrawString(Disassembly[index].ValueAText, font, Brushes.Black, new PointF(valueA, y));
int locationY = y + size.Height;
if (this.Height / 2 < y)
locationY = y - size.Height;
string text = Disassembly[index].ValueAText + " = 0x" + Debugger.GetHexString(valueAcalc, 4);
Size hoverSize = TextRenderer.MeasureText(text, font);
e.Graphics.FillRectangle(Brushes.LightBlue, new Rectangle(new Point(
(valueA + (TextRenderer.MeasureText(Disassembly[index].ValueAText, font).Width / 2)) -
(hoverSize.Width / 2), locationY), hoverSize));
e.Graphics.DrawString(text, font, Brushes.Black, new Point(
(valueA + (TextRenderer.MeasureText(Disassembly[index].ValueAText, font).Width / 2)) -
(hoverSize.Width / 2), locationY));
}
}
CPU.PC = oldPC;
CPU.SP = oldSP;
break;
}
index++;
}
}
e.Graphics.DrawRectangle(Pens.Black, new Rectangle(0, 0, this.Width - 1 - vScrollBar.Width, this.Height - 1));
}
private static void ParseInput(string originalInput)
{
string input = originalInput.ToLower().Trim();
string[] parameters = input.Split(' ');
if (input == "clear")
Console.Clear();
else if (input.StartsWith("bind "))
{
string[] parts = input.Split(' ');
Shortcuts.Add(parts[1].ToLower(), input.Substring(5 + parts[1].Length));
}
else if (input.StartsWith("flash "))
{
bool littleEndian = false;
string file;
if (parameters.Length == 2)
file = parameters[1];
else if (parameters.Length == 3)
{
file = parameters[2];
littleEndian = parameters[1].ToLower() == "little";
}
else
return;
List<ushort> data = new List<ushort>();
using (Stream stream = File.OpenRead(file))
{
for (int i = 0; i < stream.Length; i += 2)
{
byte a = (byte)stream.ReadByte();
byte b = (byte)stream.ReadByte();
if (littleEndian)
data.Add((ushort)(a | (b << 8)));
else
data.Add((ushort)(b | (a << 8)));
}
}
CPU.FlashMemory(data.ToArray());
}
else if (input.StartsWith("connect "))
ConnectDevice(input.Substring(8));
else if (input == "start")
CPU.IsRunning = true;
else if (input == "stop")
CPU.IsRunning = false;
else if (input.StartsWith("step"))
{
if (CPU.IsRunning)
{
Console.WriteLine("CPU is still running; use \"stop\" first.");
return;
}
string[] parts = input.Split(' ');
if (parts.Length > 1)
{
if (parts[1] == "into" || parts[1] == "once")
CPU.Execute(-1);
else if (parts[1] == "over")
{
}
else
{
int i = int.Parse(parts[1]);
while (i > 0)
{
CPU.Execute(-1);
i--;
}
}
}
else
CPU.Execute(-1);
}
else if (input.StartsWith("dump "))
{
string[] parts = input.Substring(5).Split(' ');
if (parts[0] == "screen")
{
if (parts.Length > 1)
{
int index = int.Parse(parts[1]);
if (CPU.Devices[index] is LEM1802)
DrawScreen(CPU.Devices[index] as LEM1802);
}
else
{
foreach (var device in CPU.Devices)
if (device is LEM1802)
{
DrawScreen(device as LEM1802);
break;
}
}
}
else if (parts[0] == "memory" || parts[0] == "mem")
{
ushort start = 0;
if (parts.Length > 1)
start = ushort.Parse(parts[1], NumberStyles.HexNumber);
ushort end = (ushort)(start + 0x40);
if (parts.Length > 2)
end = ushort.Parse(parts[2], NumberStyles.HexNumber);
int index = 0;
while (start < end)
{
if (index % 8 == 0)
Console.Write("0x" + GetHexString(start, 4) + ": ");
if (CPU.PC == start)
Console.Write("[" + GetHexString(CPU.Memory[start], 4) + "]");
else
Console.Write(" " + GetHexString(CPU.Memory[start], 4) + " ");
if (index % 8 == 7)
Console.Write("\n");
index++;
start++;
}
}
else if (parts[0] == "stack")
{
ushort address = CPU.SP;
for (ushort i = 0; i < 10; i++)
{
Console.WriteLine("[" + GetHexString(address, 4) + "]: " + GetHexString(CPU.Memory[address], 4));
address++;
}
}
}
else if (input.StartsWith("list "))
{
string[] parts = input.Split(' ');
if (parts[1] == "registers")
{
Console.Write("A: " + GetHexString(CPU.A, 4));
Console.Write(" B: " + GetHexString(CPU.B, 4) + "\n");
Console.Write("C: " + GetHexString(CPU.C, 4));
Console.Write(" X: " + GetHexString(CPU.X, 4) + "\n");
Console.Write("Y: " + GetHexString(CPU.Y, 4));
Console.Write(" Z: " + GetHexString(CPU.Z, 4) + "\n");
Console.Write("I: " + GetHexString(CPU.I, 4));
Console.Write(" J: " + GetHexString(CPU.J, 4) + "\n");
Console.Write("PC: " + GetHexString(CPU.PC, 4));
Console.Write(" SP: " + GetHexString(CPU.SP, 4) + "\n");
Console.Write("EX: " + GetHexString(CPU.EX, 4));
Console.Write(" IA: " + GetHexString(CPU.IA, 4) + "\n");
}
else if (parts[1] == "hardware")
{
int i = 0;
foreach (var hw in CPU.Devices)
Console.WriteLine((i++) + ": " + hw.FriendlyName + " (0x" + hw.DeviceID.ToString("X8") + ")");
}
}
else if (input.StartsWith("dasm") || input.StartsWith("dis"))
{
FastDisassembler fdas = new FastDisassembler(new Dictionary<ushort, string>());
ushort start = (ushort)(CPU.PC - 2);
string[] parts = input.Split(' ');
if (parts.Length > 1)
start = ushort.Parse(parts[1], NumberStyles.HexNumber);
var code = fdas.FastDisassemble(ref CPU.Memory, start, (ushort)(start + 0x10));
foreach (var entry in code)
{
if (CPU.PC == entry.Address)
{
ConsoleColor background = Console.BackgroundColor;
ConsoleColor foreground = Console.ForegroundColor;
Console.BackgroundColor = ConsoleColor.Yellow;
Console.ForegroundColor = ConsoleColor.Black;
Console.WriteLine(GetHexString(entry.Address, 4) + ": " + entry.Code);
Console.ForegroundColor = foreground;
Console.BackgroundColor = background;
}
else if (CPU.Breakpoints.Where(b => b.Address == entry.Address).Count() != 0)
{
ConsoleColor background = Console.BackgroundColor;
ConsoleColor foreground = Console.ForegroundColor;
Console.BackgroundColor = ConsoleColor.DarkRed;
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine(GetHexString(entry.Address, 4) + ": " + entry.Code);
Console.ForegroundColor = foreground;
Console.BackgroundColor = background;
}
else
Console.WriteLine(GetHexString(entry.Address, 4) + ": " + entry.Code);
}
}
else if (input.StartsWith("breakpoint "))
{
string[] parts = input.Split(' ');
ushort address = ushort.Parse(parts[2], NumberStyles.HexNumber);
if (parts[1] == "add" || parts[1] == "set")
{
if (CPU.Breakpoints.Count(b => b.Address == address) == 0)
{
CPU.Breakpoints.Add(new Breakpoint()
{
Address = address
});
}
else
Console.WriteLine("There is already a breakpoint set at that address.");
}
else if (parts[1] == "remove")
{
if (CPU.Breakpoints.Count(b => b.Address == address) != 0)
CPU.Breakpoints.Remove(CPU.Breakpoints.FirstOrDefault(b => b.Address == address));
else
Console.WriteLine("There is no breakpoint set at that address.");
}
}
else if (input == "exit" || input == "quit" || input == "bye")
Process.GetCurrentProcess().Kill();
else if (input.StartsWith("help"))
DoHelp(input);
else if (input == "") { }
else
{
if (File.Exists(input)) // Script?
{
string[] file = File.ReadAllLines(input);
foreach (var line in file)
ParseInput(line);
}
else
Console.WriteLine("Unknown command.");
}
return;
}
private static void ParseInput(string originalInput, PinnedConsole Console)
{
string input = originalInput.ToLower().Trim();
string[] parameters = input.Split(' ');
if (input == "quit" || input == "q")
return;
else if (input == "clear")
{
if (Console.Global)
System.Console.Clear();
else
Console.Clear();
}
else if (input.StartsWith("bind "))
{
string[] parts = input.Split(' ');
Shortcuts.Add(parts[1].ToLower(), input.Substring(5 + parts[1].Length));
}
else if (input.StartsWith("pin ")) // pin x y interval command...
{
string[] parts = input.Split(' ');
int x = int.Parse(parts[1]);
int y = int.Parse(parts[2]);
int interval = int.Parse(parts[3]);
string command = input.Substring(input.IndexOf(' ') + 1);
command = command.Substring(command.IndexOf(' ') + 1);
command = command.Substring(command.IndexOf(' ') + 1);
command = command.Substring(command.IndexOf(' ') + 1);
PinnedConsole pc = new PinnedConsole()
{
Command = command,
Left = x,
Top = y,
Interval = interval,
ID = ConsoleID++
};
pc.Timer = new Timer(new TimerCallback(UpdateConsole), pc, pc.Interval, System.Threading.Timeout.Infinite);
Console.WriteLine("Console ID " + pc.ID.ToString() + " created.");
}
else if (input.StartsWith("flash "))
{
bool littleEndian = false;
string file;
if (parameters.Length == 2)
file = parameters[1];
else if (parameters.Length == 3)
{
file = parameters[2];
littleEndian = parameters[1].ToLower() == "little";
}
else
return;
List<ushort> data = new List<ushort>();
using (Stream stream = File.OpenRead(file))
{
for (int i = 0; i < stream.Length; i += 2)
{
byte a = (byte)stream.ReadByte();
byte b = (byte)stream.ReadByte();
if (littleEndian)
data.Add((ushort)(a | (b << 8)));
else
data.Add((ushort)(b | (a << 8)));
}
}
CPU.FlashMemory(data.ToArray());
}
else if (input.StartsWith("connect "))
ConnectDevice(input.Substring(8));
else if (input == "start")
CPU.IsRunning = true;
else if (input == "stop")
CPU.IsRunning = false;
else if (input.StartsWith("step"))
{
if (CPU.IsRunning)
{
Console.WriteLine("CPU is still running; use \"stop\" first.");
return;
}
string[] parts = input.Split(' ');
if (parts.Length > 1)
{
if (parts[1] == "into" || parts[1] == "once")
CPU.Execute(-1);
else if (parts[1] == "over")
{
}
else
{
int i = int.Parse(parts[1]);
while (i > 0)
{
CPU.Execute(-1);
i--;
}
}
}
else
{
CPU.Execute(-1);
}
}
else if (input.StartsWith("dump "))
{
string[] parts = input.Substring(5).Split(' ');
if (parts[0] == "screen")
{
if (parts.Length > 1)
{
int index = int.Parse(parts[1]);
if (CPU.Devices[index] is LEM1802)
DrawScreen(CPU.Devices[index] as LEM1802, Console);
}
else
{
foreach (var device in CPU.Devices)
if (device is LEM1802)
{
DrawScreen(device as LEM1802, Console);
break;
}
}
}
else if (parts[0] == "memory" || parts[0] == "mem")
{
ushort start = 0;
if (parts.Length > 1)
start = ushort.Parse(parts[1], NumberStyles.HexNumber);
ushort end = (ushort)(start + 0x40);
if (parts.Length > 2)
end = ushort.Parse(parts[2], NumberStyles.HexNumber);
int index = 0;
while (start < end)
{
if (index % 8 == 0)
Console.Write("0x" + GetHexString(start, 4) + ": ");
if (CPU.PC == start)
Console.Write("[" + GetHexString(CPU.Memory[start], 4) + "]");
else
Console.Write(" " + GetHexString(CPU.Memory[start], 4) + " ");
if (index % 8 == 7)
Console.Write("\n");
index++;
start++;
}
}
else if (parts[0] == "stack")
{
ushort address = CPU.SP;
for (ushort i = 0; i < 10; i++)
{
Console.WriteLine("[" + GetHexString(address, 4) + "]: " + GetHexString(CPU.Memory[address], 4));
address++;
}
}
}
else if (input.StartsWith("list "))
{
string[] parts = input.Split(' ');
if (parts[1] == "registers")
{
Console.Write("A: " + GetHexString(CPU.A, 4));
Console.Write(" B: " + GetHexString(CPU.B, 4) + "\n");
Console.Write("C: " + GetHexString(CPU.C, 4));
Console.Write(" X: " + GetHexString(CPU.X, 4) + "\n");
Console.Write("Y: " + GetHexString(CPU.Y, 4));
Console.Write(" Z: " + GetHexString(CPU.Z, 4) + "\n");
Console.Write("I: " + GetHexString(CPU.I, 4));
Console.Write(" J: " + GetHexString(CPU.J, 4) + "\n");
Console.Write("PC: " + GetHexString(CPU.PC, 4));
Console.Write(" SP: " + GetHexString(CPU.SP, 4) + "\n");
Console.Write("EX: " + GetHexString(CPU.EX, 4));
Console.Write(" IA: " + GetHexString(CPU.IA, 4) + "\n");
}
else if (parts[1] == "hardware")
{
foreach (var hw in CPU.Devices)
Console.WriteLine(hw.FriendlyName);
}
}
else if (input.StartsWith("dasm") || input.StartsWith("dis"))
{
FastDisassembler fdas = new FastDisassembler(new Dictionary<ushort, string>());
ushort start = (ushort)(CPU.PC - 2);
string[] parts = input.Split(' ');
if (parts.Length > 1)
start = ushort.Parse(parts[1], NumberStyles.HexNumber);
var code = fdas.FastDisassemble(ref CPU.Memory, start, (ushort)(start + 0x10));
foreach (var entry in code)
{
if (CPU.PC == entry.Address)
{
ConsoleColor background = System.Console.BackgroundColor;
ConsoleColor foreground = System.Console.ForegroundColor;
System.Console.BackgroundColor = ConsoleColor.Yellow;
System.Console.ForegroundColor = ConsoleColor.Black;
Console.WriteLine(GetHexString(entry.Address, 4) + ": " + entry.Code);
System.Console.ForegroundColor = foreground;
System.Console.BackgroundColor = background;
}
else if (CPU.Breakpoints.Where(b => b.Address == entry.Address).Count() != 0)
{
ConsoleColor background = System.Console.BackgroundColor;
ConsoleColor foreground = System.Console.ForegroundColor;
System.Console.BackgroundColor = ConsoleColor.DarkRed;
System.Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine(GetHexString(entry.Address, 4) + ": " + entry.Code);
System.Console.ForegroundColor = foreground;
System.Console.BackgroundColor = background;
}
else
Console.WriteLine(GetHexString(entry.Address, 4) + ": " + entry.Code);
}
}
else if (input.StartsWith("breakpoint "))
{
CPU.Breakpoints.Add(new Breakpoint()
{
Address = ushort.Parse(input.Substring(11), NumberStyles.HexNumber)
});
}
else if (input == "") { }
else
{
if (File.Exists(input)) // Script?
{
string[] file = File.ReadAllLines(input);
foreach (var line in file)
ParseInput(line, Console);
}
else
Console.WriteLine("Unknown command.");
}
return;
}