From 1073e184d339c94c089b5d5457b1464718c7dc16 Mon Sep 17 00:00:00 2001
From: goyuken <goyuken@4bbf4f03-6f44-549e-7e59-35d4b0962838>
Date: Fri, 14 Jun 2013 15:07:55 +0000
Subject: [PATCH] re-un-break TGROM problem caused by r4524

---
 .../Consoles/Nintendo/NES/Boards/MMC3_family/MMC3.cs            | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/MMC3.cs b/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/MMC3.cs
index bd60ae9517..06f73e0380 100644
--- a/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/MMC3.cs
+++ b/BizHawk.Emulation/Consoles/Nintendo/NES/Boards/MMC3_family/MMC3.cs
@@ -381,6 +381,8 @@ namespace BizHawk.Emulation.Consoles.Nintendo
 			prg_mask = num_prg_banks - 1;
 
 			int num_chr_banks = (Cart.chr_size);
+			if (num_chr_banks == 0) // vram only board
+				num_chr_banks = 8;
 			chr_mask = num_chr_banks - 1;
 
 			mmc3 = new MMC3(this, num_prg_banks);