From cfc76c6bdb9941134eb83a4ad5f06875c973470d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Banaan=20Ananas?=
 <happppp@users.noreply.github.com>
Date: Wed, 26 Feb 2014 15:59:32 +0000
Subject: [PATCH] forgot to add this

---
 src/emu/machine/rp5c01.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/emu/machine/rp5c01.c b/src/emu/machine/rp5c01.c
index 72759cce0f3..d543e1fcbaf 100644
--- a/src/emu/machine/rp5c01.c
+++ b/src/emu/machine/rp5c01.c
@@ -364,7 +364,7 @@ READ8_MEMBER( rp5c01_device::read )
 		{
 		case MODE00:
 		case MODE01:
-			data = m_reg[m_mode & MODE_MASK][offset];
+			data = m_reg[m_mode & MODE_MASK][offset & 0x0f];
 			break;
 
 		case BLOCK10: