Back to where we were

First special instruction

Start Load/Store implementation

Start TextureSample

Sample progress

I/O Load/Store Progress

Rest of load/store

TODO: Currently, the generator still assumes the GLSL style of I/O attributres. On MSL, the vertex function should output a struct which contains a float4 with the required position attribute.

TextureSize and VectorExtract

Fix UserDefined IO Vars

Fix stage input struct names

src/Ryujinx.Graphics.Shader/CodeGen/Msl/Instructions/InstGenCall.cs

@@ -0,0 +1,25 @@
+using Ryujinx.Graphics.Shader.StructuredIr;
+
+using static Ryujinx.Graphics.Shader.CodeGen.Msl.Instructions.InstGenHelper;
+
+namespace Ryujinx.Graphics.Shader.CodeGen.Msl.Instructions
+{
+    static class InstGenCall
+    {
+        public static string Call(CodeGenContext context, AstOperation operation)
+        {
+            AstOperand funcId = (AstOperand)operation.GetSource(0);
+
+            var functon = context.GetFunction(funcId.Value);
+
+            string[] args = new string[operation.SourcesCount - 1];
+
+            for (int i = 0; i < args.Length; i++)
+            {
+                args[i] = GetSourceExpr(context, operation.GetSource(i + 1), functon.GetArgumentType(i));
+            }
+
+            return $"{functon.Name}({string.Join(", ", args)})";
+        }
+    }
+}