From 6e4e0b2b41eee7309bbf3f9a92368482b5d49232 Mon Sep 17 00:00:00 2001
From: Subv <subv2112@gmail.com>
Date: Mon, 2 Jul 2018 19:48:15 -0500
Subject: GPU: Implemented MUFU suboperation 8, sqrt.

---
 src/video_core/engines/shader_bytecode.h                | 1 +
 src/video_core/renderer_opengl/gl_shader_decompiler.cpp | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h
index 86fd64979..c1226a649 100644
--- a/src/video_core/engines/shader_bytecode.h
+++ b/src/video_core/engines/shader_bytecode.h
@@ -166,6 +166,7 @@ enum class SubOp : u64 {
     Lg2 = 0x3,
     Rcp = 0x4,
     Rsq = 0x5,
+    Sqrt = 0x8,
 };
 
 enum class F2iRoundingOp : u64 {
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index bbccf0bfd..8e5465f40 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -917,6 +917,10 @@ private:
                     regs.SetRegisterToFloat(instr.gpr0, 0, "inversesqrt(" + op_a + ')', 1, 1,
                                             instr.alu.saturate_d);
                     break;
+                case SubOp::Sqrt:
+                    regs.SetRegisterToFloat(instr.gpr0, 0, "sqrt(" + op_a + ')', 1, 1,
+                                            instr.alu.saturate_d);
+                    break;
                 default:
                     NGLOG_CRITICAL(HW_GPU, "Unhandled MUFU sub op: {0:x}",
                                    static_cast<unsigned>(instr.sub_op.Value()));
-- 
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