From 1461b257ccc6ab7976f8bcf4178b4101af8c809a Mon Sep 17 00:00:00 2001
From: Wohlstand <admin@wohlnet.ru>
Date: Thu, 10 Apr 2025 04:51:11 +0300
Subject: adlmidi_opl3: Fixed the dead loop when tone comes lower than zero

---
 src/adlmidi_opl3.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/adlmidi_opl3.cpp')

diff --git a/src/adlmidi_opl3.cpp b/src/adlmidi_opl3.cpp
index be84203..5690721 100644
--- a/src/adlmidi_opl3.cpp
+++ b/src/adlmidi_opl3.cpp
@@ -1058,6 +1058,9 @@ void OPL3::noteOn(size_t c1, size_t c2, double tone)
     // Hertz range: 0..131071
     double hertz;
 
+    if(tone < 0.0)
+        tone = 0.0; // Lower than 0 is impossible!
+
     // Use different frequency formulas in depend on a volume model
     switch(m_volumeScale)
     {
-- 
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