From d56ed8f269d47f707b12e70b3cf5cb1c03dfb197 Mon Sep 17 00:00:00 2001
From: smf- <smf-@users.noreply.github.com>
Date: Mon, 10 Jun 2013 12:50:48 +0000
Subject: [PATCH] fixed array access (nw)

---
 src/mess/audio/dave.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/mess/audio/dave.c b/src/mess/audio/dave.c
index 0f44a63c27a..6cf75554a83 100644
--- a/src/mess/audio/dave.c
+++ b/src/mess/audio/dave.c
@@ -391,7 +391,7 @@ WRITE8_MEMBER( dave_device::io_w )
 		case 0xa5:
 			{
 				int count = 0;
-				int channel_index = offset>>1;
+				int channel_index = (offset>>1)&3;
 
 				/* Fout = 125,000 / (n+1) Hz */