Initial work

Ryujinx.Graphics.Shader/Decoders/Register.cs

@@ -0,0 +1,36 @@
+using System;
+
+namespace Ryujinx.Graphics.Shader.Decoders
+{
+    struct Register : IEquatable<Register>
+    {
+        public int Index { get; }
+
+        public RegisterType Type { get; }
+
+        public bool IsRZ => Type == RegisterType.Gpr       && Index == RegisterConsts.RegisterZeroIndex;
+        public bool IsPT => Type == RegisterType.Predicate && Index == RegisterConsts.PredicateTrueIndex;
+
+        public Register(int index, RegisterType type)
+        {
+            Index = index;
+            Type  = type;
+        }
+
+        public override int GetHashCode()
+        {
+            return (ushort)Index | ((ushort)Type << 16);
+        }
+
+        public override bool Equals(object obj)
+        {
+            return obj is Register reg && Equals(reg);
+        }
+
+        public bool Equals(Register other)
+        {
+            return other.Index == Index &&
+                   other.Type  == Type;
+        }
+    }
+}