From f0306c10df4c0fd9b03cc65e58e798e38a9f5891 Mon Sep 17 00:00:00 2001
From: alyosha-tas <alexei.f.k@gmail.com>
Date: Wed, 6 Sep 2017 09:32:59 -0400
Subject: [PATCH] Update PPU.cs

---
 BizHawk.Emulation.Cores/Consoles/Nintendo/GBHawk/PPU.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/GBHawk/PPU.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/GBHawk/PPU.cs
index b088b237a0..fdb381ae9e 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/GBHawk/PPU.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/GBHawk/PPU.cs
@@ -485,6 +485,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBHawk
 					{
 						window_y_tile_inc = 0;
 						window_y_tile++;
+						window_y_tile %= 32;
 					}
 				}
 				window_started = false;