From 8bf8213a7dbf426be79337f68cdc9fa7b5191871 Mon Sep 17 00:00:00 2001
From: goyuken <goyuken@4bbf4f03-6f44-549e-7e59-35d4b0962838>
Date: Tue, 21 Jan 2014 22:29:51 +0000
Subject: [PATCH] NES: truncate if a iNES file's supposed VROM size is longer
 than the leftover length of the iNES file.  seems to fix some
 hacks\translations

---
 BizHawk.Emulation.Cores/Consoles/Nintendo/NES/NES.cs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/NES.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/NES.cs
index e8c1dec85f..e94c299acb 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/NES.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/NES.cs
@@ -749,7 +749,9 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 				{
 					board.VROM = new byte[choice.chr_size * 1024];
 					int vrom_offset = iNesHeaderInfo.prg_size * 1024;
-					Array.Copy(file, 16 + vrom_offset, board.VROM, 0, board.VROM.Length);
+					// if file isn't long enough for VROM, truncate
+
+					Array.Copy(file, 16 + vrom_offset, board.VROM, 0, Math.Min(board.VROM.Length, file.Length - 16 - vrom_offset));
 				}
 			}
 			else