From a5c6f014ccb4780502d7555401452b48ab705b8d Mon Sep 17 00:00:00 2001
From: Peter Veenstra <qbix79@users.sourceforge.net>
Date: Mon, 11 Nov 2013 12:59:54 +0000
Subject: [PATCH] Add small delay when raising IRQ, fixes Llamatron 2012 and
 Lemmings 3D.

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@3845
---
 src/hardware/sblaster.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/hardware/sblaster.cpp b/src/hardware/sblaster.cpp
index 49fbea22..b3104696 100644
--- a/src/hardware/sblaster.cpp
+++ b/src/hardware/sblaster.cpp
@@ -984,7 +984,8 @@ static void DSP_DoCommand(void) {
 		DSP_AddData(sb.dsp.test_register);;
 		break;
 	case 0xf2:	/* Trigger 8bit IRQ */
-		SB_RaiseIRQ(SB_IRQ_8);
+		//Small delay in order to emulate the slowness of the DSP, fixes Llamatron 2012 and Lemmings 3D
+		PIC_AddEvent(&DSP_RaiseIRQEvent,0.01f); 
 		break;
 	case 0xf3:   /* Trigger 16bit IRQ */
 		DSP_SB16_ONLY;