From 1a43e93c3547119e7b46d955d4b2b3ac2f32eac3 Mon Sep 17 00:00:00 2001
From: Thog <me@thog.eu>
Date: Wed, 13 Feb 2019 13:18:12 +0100
Subject: [PATCH] improve readability of the memory permission check in
 SetProcessMemoryPermission

---
 Ryujinx.HLE/HOS/Kernel/SupervisorCall/SvcMemory.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Ryujinx.HLE/HOS/Kernel/SupervisorCall/SvcMemory.cs b/Ryujinx.HLE/HOS/Kernel/SupervisorCall/SvcMemory.cs
index b8b10b9d2c..a20a7edf96 100644
--- a/Ryujinx.HLE/HOS/Kernel/SupervisorCall/SvcMemory.cs
+++ b/Ryujinx.HLE/HOS/Kernel/SupervisorCall/SvcMemory.cs
@@ -487,7 +487,8 @@ namespace Ryujinx.HLE.HOS.Kernel.SupervisorCall
                 return KernelResult.InvalidSize;
             }
 
-            if (permission > MemoryPermission.ReadAndExecute || ((1 << (int)permission) & 0x2B) == 0)
+            if (permission > MemoryPermission.ReadAndExecute ||
+                (((permission & MemoryPermission.Execute) != 0) && ((permission & MemoryPermission.Write) != 0)))
             {
                 return KernelResult.InvalidPermission;
             }