From b458d7447c2f5233bd725d741804e3380aadc19b Mon Sep 17 00:00:00 2001
From: mailwl <mailwl@gmail.com>
Date: Sat, 14 Jan 2017 12:13:50 +0300
Subject: [PATCH] GSP::WriteHWRegsWithMask: fix register mask

---
 src/core/hle/service/gsp_gpu.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/hle/service/gsp_gpu.cpp b/src/core/hle/service/gsp_gpu.cpp
index 947958703..a8c1331ed 100644
--- a/src/core/hle/service/gsp_gpu.cpp
+++ b/src/core/hle/service/gsp_gpu.cpp
@@ -149,7 +149,7 @@ static ResultCode WriteHWRegsWithMask(u32 base_address, u32 size_in_bytes, VAddr
                 u32 mask = Memory::Read32(masks_vaddr);
 
                 // Update the current value of the register only for set mask bits
-                reg_value = (reg_value & ~mask) | (data | mask);
+                reg_value = (reg_value & ~mask) | (data & mask);
 
                 WriteSingleHWReg(base_address, reg_value);