First OpCode Decoding attempt

ParsonsMegadrive.Core/Interfaces/IMemoryBus.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace ParsonsMegadrive.Core.Interfaces
+{
+    public interface IMemoryBus
+    {
+        // 8-bit (Byte)
+        byte Read8(uint address);
+        void Write8(uint address, byte value);
+
+        // 16-bit (Word)
+        ushort Read16(uint address);
+        void Write16(uint address, ushort value);
+
+        // 32-bit (Long)
+        uint Read32(uint address);
+        void Write32(uint address, uint value);
+    }
+}