Mapper 99 - add chr masking, fixes bizhawk crashing on a bad dump of VS Super Mario Bros

2016-11-07 17:07:00 -06:00 · 2016-11-07 17:07:00 -06:00 · 33b72964d4
parent 8033a8c4fc
commit 33b72964d4
1 changed files with 1 additions and 1 deletions
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/VS_M99.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/VS_M99.cs
@ -63,7 +63,7 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 		{
 			if (addr < 0x2000)
 			{
-				return VROM[(addr & 0x1FFF) + (NES.VS_chr_reg << 13)];
+				return VROM[(addr & 0x1FFF) + ((NES.VS_chr_reg & chr_mask) << 13)];
 			}
 			else
 			{