From 4f558a5ab7c9653b501cbdf68c6c13c0e2bc4bf0 Mon Sep 17 00:00:00 2001
From: Sjoerd van der Berg <harekiet@users.sourceforge.net>
Date: Sat, 11 Sep 2004 08:09:25 +0000
Subject: [PATCH] Add pit mode 1 which basically just keeps output high

Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1972
---
 src/hardware/pcspeaker.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/hardware/pcspeaker.cpp b/src/hardware/pcspeaker.cpp
index 823c1c50..732d3329 100644
--- a/src/hardware/pcspeaker.cpp
+++ b/src/hardware/pcspeaker.cpp
@@ -76,6 +76,8 @@ static void ForwardPIT(float newindex) {
 	switch (spkr.pit_mode) {
 	case 0:
 		return;
+	case 1:
+		return;
 	case 2:
 		while (passed>0) {
 			/* passed the initial low cycle? */
@@ -172,6 +174,11 @@ void PCSPEAKER_SetCounter(Bitu cntr,Bitu mode) {
 		AddDelayEntry(newindex,spkr.pit_last);
 		spkr.pit_index=0;
 		break;
+	case 1:
+		if (spkr.mode!=SPKR_PIT_ON) return;
+		spkr.pit_last=SPKR_VOLUME;
+		AddDelayEntry(newindex,spkr.pit_last);
+		break;
 	case 2:			/* Single cycle low, rest low high generator */
 		spkr.pit_index=0;
 		spkr.pit_last=-SPKR_VOLUME;