104 lines
3.3 KiB
C#
104 lines
3.3 KiB
C#
using System.Reflection;
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using System.Reflection.PortableExecutable;
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using Core;
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using System.Threading.Tasks;
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using System.Drawing.Imaging;
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using System.Runtime.InteropServices;
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using System.Windows.Forms;
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namespace Desktop
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{
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public partial class Form1 : Form
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{
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private SmsMachine _machine = null!;
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private DebuggerForm _debugger;
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private Bitmap _screenBitmap = new Bitmap(256, 192, PixelFormat.Format32bppArgb);
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public bool IsRunning { get; private set; } = false;
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public ushort? Breakpoint
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{
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get => _machine?.Breakpoint;
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set { if (_machine != null) _machine.Breakpoint = value; }
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}
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public Form1()
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{
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InitializeComponent();
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_machine = new SmsMachine();
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}
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private void DrawScreen()
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{
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// Rapidly copy our VDP FrameBuffer into the Windows Bitmap
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var data = _screenBitmap.LockBits(new Rectangle(0, 0, 256, 192), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
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Marshal.Copy(_machine.VideoProcessor.FrameBuffer, 0, data.Scan0, _machine.VideoProcessor.FrameBuffer.Length);
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_screenBitmap.UnlockBits(data);
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// Update the PictureBox
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pbScreen.Image = _screenBitmap;
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}
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public void StartEmulator()
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{
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if (IsRunning) return;
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IsRunning = true;
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// Fire off a background task so we don't freeze the Windows UI!
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Task.Run(() =>
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{
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while (IsRunning)
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{
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_machine.RunFrame();
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Invoke((System.Windows.Forms.MethodInvoker)delegate { DrawScreen(); });
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// Safety catch: If we hit a breakpoint while running, stop the loop!
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if (_machine.Breakpoint.HasValue && _machine.Cpu.PC == _machine.Breakpoint.Value)
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{
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IsRunning = false;
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// Optional: Force the debugger UI to update immediately so you see it!
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Invoke((System.Windows.Forms.MethodInvoker)delegate { _debugger?.uiUpdateTimer_Tick(null, EventArgs.Empty); });
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}
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else
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{
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// Only throttle the speed if we are actively running
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Thread.Sleep(16);
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}
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}
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});
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}
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public void StopEmulator()
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{
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IsRunning = false;
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}
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public void StepEmulator()
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{
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_machine.StepMachine();
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}
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private void button1_Click(object sender, EventArgs e)
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{
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// 1. Load a commercial Master System ROM!
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byte[] rom = File.ReadAllBytes(@"C:\Parsons\Local Code Projects\ParsonsMasterSystem2026\Desktop\ROMS\Golden Axe Warrior.sms");
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// 2. Jam it into the Sega Mapper
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_machine.LoadCartridge(rom);
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// 3. Open the Debugger to look around
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if (_debugger == null || _debugger.IsDisposed)
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{
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_debugger = new DebuggerForm(_machine.Cpu, _machine.MemoryBus, this);
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_debugger.Show();
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}
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}
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}
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}
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