From 8624dd8de63d60b8244badf483a305eaf9154d51 Mon Sep 17 00:00:00 2001
From: LDj3SNuD <35856442+LDj3SNuD@users.noreply.github.com>
Date: Thu, 13 Aug 2020 17:08:48 +0200
Subject: [PATCH] Fix MacroJit SubtractWithBorrow Alu Reg Operation. (#1473)

---
 Ryujinx.Graphics.Gpu/Engine/MME/MacroJitCompiler.cs | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/Ryujinx.Graphics.Gpu/Engine/MME/MacroJitCompiler.cs b/Ryujinx.Graphics.Gpu/Engine/MME/MacroJitCompiler.cs
index 524f51e40..e752b9dc1 100644
--- a/Ryujinx.Graphics.Gpu/Engine/MME/MacroJitCompiler.cs
+++ b/Ryujinx.Graphics.Gpu/Engine/MME/MacroJitCompiler.cs
@@ -358,11 +358,12 @@ namespace Ryujinx.Graphics.Gpu.Engine.MME
                     _ilGen.Emit(OpCodes.Conv_U8);
                     EmitLoadGprB(opCode);
                     _ilGen.Emit(OpCodes.Conv_U8);
+                    _ilGen.Emit(OpCodes.Ldc_I4_1);
                     _ilGen.Emit(OpCodes.Ldloc_S, _carry);
-                    _ilGen.Emit(OpCodes.Conv_U8);
-                    _ilGen.Emit(OpCodes.Neg);
                     _ilGen.Emit(OpCodes.Sub);
-                    _ilGen.Emit(OpCodes.Add);
+                    _ilGen.Emit(OpCodes.Conv_U8);
+                    _ilGen.Emit(OpCodes.Sub);
+                    _ilGen.Emit(OpCodes.Sub);
                     _ilGen.Emit(OpCodes.Dup);
                     _ilGen.Emit(OpCodes.Ldc_I8, 0x100000000L);
                     _ilGen.Emit(OpCodes.Clt_Un);