From 9f1c5b45c0ad057733163e408ce0a16f14a5bb3c Mon Sep 17 00:00:00 2001
From: alyosha-tas <alexei.f.k@gmail.com>
Date: Tue, 21 Nov 2017 09:20:09 -0500
Subject: [PATCH] GBHawk: PPU fix

---
 .../Consoles/Nintendo/GBHawk/PPU.cs                    | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/GBHawk/PPU.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/GBHawk/PPU.cs
index 6a3e8652e1..10b5863fff 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/GBHawk/PPU.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/GBHawk/PPU.cs
@@ -639,7 +639,15 @@ namespace BizHawk.Emulation.Cores.Nintendo.GBHawk
 						pixel |= tile_data_latch[1].Bit(7 - (render_counter % 8)) ? 2 : 0;
 
 						int ref_pixel = pixel;
-						pixel = (BGP >> (pixel * 2)) & 3;
+						if (LCDC.Bit(0))
+						{
+							pixel = (BGP >> (pixel * 2)) & 3;
+						}
+						else
+						{
+							pixel = 0;
+						}
+						
 
 						// now we have the BG pixel, we next need the sprite pixel
 						if (!no_sprites)