Implement a Macro JIT (#1445)

* Implement a Macro JIT

* Nit: space

Ryujinx.Graphics.Gpu/Engine/MME/IMacroEE.cs

@@ -0,0 +1,25 @@
+using Ryujinx.Graphics.Gpu.State;
+using System;
+using System.Collections.Generic;
+
+namespace Ryujinx.Graphics.Gpu.Engine.MME
+{
+    /// <summary>
+    /// Macro Execution Engine interface.
+    /// </summary>
+    interface IMacroEE
+    {
+        /// <summary>
+        /// Arguments FIFO.
+        /// </summary>
+        public Queue<int> Fifo { get; }
+
+        /// <summary>
+        /// Should execute the GPU Macro code being passed.
+        /// </summary>
+        /// <param name="code">Code to be executed</param>
+        /// <param name="state">GPU state at the time of the call</param>
+        /// <param name="arg0">First argument to be passed to the GPU Macro</param>
+        void Execute(ReadOnlySpan<int> code, GpuState state, int arg0);
+    }
+}