Implement BFI, BRK, FLO, FSWZADD, PBK, SHFL and TXD shader instructions, misc. fixes

Ryujinx.Graphics.Shader/Decoders/OpCodeTxd.cs

@@ -0,0 +1,18 @@
+using Ryujinx.Graphics.Shader.Instructions;
+
+namespace Ryujinx.Graphics.Shader.Decoders
+{
+    class OpCodeTxd : OpCodeTexture
+    {
+        public bool IsBindless { get; }
+
+        public OpCodeTxd(InstEmitter emitter, ulong address, long opCode) : base(emitter, address, opCode)
+        {
+            HasOffset = opCode.Extract(35);
+
+            IsBindless = opCode.Extract(54);
+
+            LodMode = TextureLodMode.None;
+        }
+    }
+}