Added ROM and RomLoader.cs. Updated Form1.cs to load ROM into memory

Desktop/Desktop.csproj

@@ -12,4 +12,10 @@
     <ProjectReference Include="..\Core\Core.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <None Update="48.rom">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+
 </Project>

Desktop/Form1.cs

@@ -1,15 +1,44 @@
+using System;
+using System.Windows.Forms;
+using Core.Cpu;
+using Core.Memory;
+
 namespace Desktop
 {
     public partial class Form1 : Form
     {
+        private Z80 _cpu;
+        private MemoryBus _memoryBus;
+
         public Form1()
         {
             InitializeComponent();
+            InitializeEmulator();
         }
 
-        private void Form1_Load(object sender, EventArgs e)
+        private void InitializeEmulator()
         {
+            try
+            {
+                // 1. Initialize the memory bus
+                _memoryBus = new MemoryBus();
 
+                // 2. Load the ROM from disk
+                // Make sure "48.rom" matches the name of the file you added to your project
+                byte[] romData = RomLoader.Load("48.rom");
+
+                // 3. Inject the ROM into the memory bus
+                _memoryBus.LoadRom(romData);
+
+                // 4. Initialize the CPU with the populated memory
+                _cpu = new Z80(_memoryBus);
+
+                MessageBox.Show("ROM loaded and CPU initialized successfully!", "Success", MessageBoxButtons.OK, MessageBoxIcon.Information);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show($"Failed to initialize emulator:\n{ex.Message}", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
         }
     }
-}
+}

Desktop/RomLoader.cs

@@ -0,0 +1,26 @@
+using System;
+using System.IO;
+
+namespace Desktop
+{
+    public static class RomLoader
+    {
+        public static byte[] Load(string filePath)
+        {
+            if (!File.Exists(filePath))
+            {
+                throw new FileNotFoundException($"Could not find the ROM file at: {filePath}");
+            }
+
+            byte[] romData = File.ReadAllBytes(filePath);
+
+            // The standard ZX Spectrum 48k ROM is exactly 16384 bytes (16KB)
+            if (romData.Length != 16384)
+            {
+                throw new InvalidDataException($"Invalid ROM size. Expected 16384 bytes, got {romData.Length} bytes.");
+            }
+
+            return romData;
+        }
+    }
+}