From b7209eafb17abc9f6a570346f151def453cb7632 Mon Sep 17 00:00:00 2001
From: Connor McLaughlin <mclaughc@outlook.com>
Date: Sun, 6 Oct 2019 00:37:31 +1000
Subject: [PATCH] GPU: Fix out-of-bounds read in GP1(10h)

---
 src/core/gpu.cpp | 6 +++---
 src/core/gpu.h   | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/core/gpu.cpp b/src/core/gpu.cpp
index de03f3f56..2f3d70781 100644
--- a/src/core/gpu.cpp
+++ b/src/core/gpu.cpp
@@ -615,7 +615,7 @@ void GPU::WriteGP1(u32 value)
     case 0x1E:
     case 0x1F:
     {
-      HandleGetGPUInfoCommand();
+      HandleGetGPUInfoCommand(value);
     }
     break;
 
@@ -625,9 +625,9 @@ void GPU::WriteGP1(u32 value)
   }
 }
 
-void GPU::HandleGetGPUInfoCommand()
+void GPU::HandleGetGPUInfoCommand(u32 value)
 {
-  const u8 subcommand = Truncate8(m_GP0_command[0] & 0x07);
+  const u8 subcommand = Truncate8(value & 0x07);
   switch (subcommand)
   {
     case 0x00:
diff --git a/src/core/gpu.h b/src/core/gpu.h
index ebd43c9e3..4e38e35d8 100644
--- a/src/core/gpu.h
+++ b/src/core/gpu.h
@@ -181,7 +181,7 @@ protected:
   u32 ReadGPUREAD();
   void WriteGP0(u32 value);
   void WriteGP1(u32 value);
-  void HandleGetGPUInfoCommand();
+  void HandleGetGPUInfoCommand(u32 value);
 
   // Rendering commands, returns false if not enough data is provided
   bool HandleRenderCommand();