Update AxROM.cs

2017-06-04 20:21:37 -04:00 · 2017-06-04 20:21:37 -04:00 · b56a6e9aa5
parent 6eb112ae76
commit b56a6e9aa5
1 changed files with 8 additions and 1 deletions
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/AxROM.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/AxROM.cs
@ -58,6 +58,13 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
 			}

 			prg_mask_32k = Cart.prg_size / 32 - 1;
+			
+			// hardware tests show that only 256kb of PRG is possible to acess
+			if (Cart.prg_size>256)
+			{
+				prg_mask_32k = 256 / 32 - 1;
+			}
+			
 			SetMirrorType(NES.NESBoardBase.EMirrorType.OneScreenA);

 			return true;