From 5d362c9409d533b6119b93350078c44bbfc3fd26 Mon Sep 17 00:00:00 2001
From: luigi__ <luigi__@users.sf.net>
Date: Fri, 13 Nov 2009 17:31:07 +0000
Subject: [PATCH] SPU: small fix to PSG noise.

---
 desmume/src/SPU.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/desmume/src/SPU.cpp b/desmume/src/SPU.cpp
index 7f12522c8..801f446ae 100644
--- a/desmume/src/SPU.cpp
+++ b/desmume/src/SPU.cpp
@@ -638,12 +638,12 @@ static FORCEINLINE void FetchPSGData(channel_struct *chan, s32 *data)
 		{
 			if(chan->x & 0x1)
 			{
-				chan->x = (chan->x >> 1);
+				chan->x = (chan->x >> 1) ^ 0x6000;
 				chan->psgnoise_last = -0x7FFF;
 			}
 			else
 			{
-				chan->x = ((chan->x >> 1) ^ 0x6000);
+				chan->x >>= 1;
 				chan->psgnoise_last = 0x7FFF;
 			}
 		}