Got main system and VDP working! There is a display!

Desktop/Form1.cs

@@ -1,12 +1,21 @@
 using System.Reflection;
 using System.Reflection.PortableExecutable;
 using Core;
+using System.Threading.Tasks;
+using System.Drawing.Imaging;
+using System.Runtime.InteropServices;
+using System.Windows.Forms;
+
 namespace Desktop
 {
     public partial class Form1 : Form
     {
         private SmsMachine _machine = null!;
         private DebuggerForm _debugger;
+        private Bitmap _screenBitmap = new Bitmap(256, 192, PixelFormat.Format32bppArgb);
+
+
+        public bool IsRunning { get; private set; } = false;
 
         public ushort? Breakpoint
         {
@@ -20,23 +29,67 @@ namespace Desktop
             _machine = new SmsMachine();
         }
 
+        private void DrawScreen()
+        {
+            // Rapidly copy our VDP FrameBuffer into the Windows Bitmap
+            var data = _screenBitmap.LockBits(new Rectangle(0, 0, 256, 192), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
+            Marshal.Copy(_machine.VideoProcessor.FrameBuffer, 0, data.Scan0, _machine.VideoProcessor.FrameBuffer.Length);
+            _screenBitmap.UnlockBits(data);
+
+            // Update the PictureBox
+            pbScreen.Image = _screenBitmap;
+        }
+
+        public void StartEmulator()
+        {
+            if (IsRunning) return;
+            IsRunning = true;
+
+            // Fire off a background task so we don't freeze the Windows UI!
+            Task.Run(() =>
+            {
+                while (IsRunning)
+                {
+                    _machine.RunFrame();
+
+                    Invoke((System.Windows.Forms.MethodInvoker)delegate { DrawScreen(); });
+
+                    // Safety catch: If we hit a breakpoint while running, stop the loop!
+                    if (_machine.Breakpoint.HasValue && _machine.Cpu.PC == _machine.Breakpoint.Value)
+                    {
+                        IsRunning = false;
+
+                        // Optional: Force the debugger UI to update immediately so you see it!
+                        Invoke((System.Windows.Forms.MethodInvoker)delegate { _debugger?.uiUpdateTimer_Tick(null, EventArgs.Empty); });
+                    }
+                    else
+                    {
+                        // Only throttle the speed if we are actively running
+                        Thread.Sleep(16);
+                    }
+                }
+            });
+        }
+
+        public void StopEmulator()
+        {
+            IsRunning = false;
+        }
+
+
+        public void StepEmulator()
+        {
+            _machine.StepMachine();
+        }
+
         private void button1_Click(object sender, EventArgs e)
         {
             // 1. Load a commercial Master System ROM!
             
                 byte[] rom = File.ReadAllBytes(@"C:\Parsons\Local Code Projects\ParsonsMasterSystem2026\Desktop\ROMS\Golden Axe Warrior.sms");
-            
-            
-            try
-            {
 
                 // 2. Jam it into the Sega Mapper
                 _machine.LoadCartridge(rom);
-            }
-            catch (Exception ex)
-            {
-                MessageBox.Show(ex.Message);
-            }
 
             // 3. Open the Debugger to look around
             if (_debugger == null || _debugger.IsDisposed)