From 8021ebdb6c6e85d344acae2b66529deb14549b34 Mon Sep 17 00:00:00 2001
From: Ralf Grillenberger <h-a-l-9000@users.sourceforge.net>
Date: Fri, 1 Jan 2010 21:45:12 +0000
Subject: [PATCH] Clear Soundblaster interrupt if needed. Fixes sound detection
 in Xenoball.

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3521
---
 src/hardware/sblaster.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/hardware/sblaster.cpp b/src/hardware/sblaster.cpp
index f80adbe8..392a155c 100644
--- a/src/hardware/sblaster.cpp
+++ b/src/hardware/sblaster.cpp
@@ -1368,7 +1368,10 @@ static Bitu read_sb(Bitu port,Bitu /*iolen*/) {
 		return DSP_ReadData();
 	case DSP_READ_STATUS:
 		//TODO See for high speed dma :)
-		sb.irq.pending_8bit=false;
+		if (sb.irq.pending_8bit)  {
+			sb.irq.pending_8bit=false;
+			PIC_DeActivateIRQ(sb.hw.irq);
+		}
 		if (sb.dsp.out.used) return 0xff;
 		else return 0x7f;
 	case DSP_ACK_16BIT: