From 3837fe59fb5038544efcfe2679140c3201da1676 Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Thu, 3 Aug 2023 01:10:25 -0500
Subject: [PATCH] SN: fix key off

---
 src/engine/platform/sms.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/engine/platform/sms.cpp b/src/engine/platform/sms.cpp
index 640f364e..76aa62fc 100644
--- a/src/engine/platform/sms.cpp
+++ b/src/engine/platform/sms.cpp
@@ -296,6 +296,10 @@ void DivPlatformSMS::tick(bool sysTick) {
       rWrite(0,0x90|(i<<5)|(isMuted[i]?15:(15-(chan[i].outVol&15))));
       chan[i].writeVol=false;
     }
+    if (chan[i].keyOff) {
+      rWrite(0,0x9f|i<<5);
+      chan[i].keyOff=false;
+    }
   }
 }
 
@@ -309,6 +313,7 @@ int DivPlatformSMS::dispatch(DivCommand c) {
         chan[c.chan].actualNote=c.value;
       }
       chan[c.chan].active=true;
+      chan[c.chan].keyOff=false;
       //if (!parent->song.brokenOutVol2) {
         chan[c.chan].writeVol=true;
         chan[c.chan].outVol=chan[c.chan].vol;
@@ -321,7 +326,7 @@ int DivPlatformSMS::dispatch(DivCommand c) {
       break;
     case DIV_CMD_NOTE_OFF:
       chan[c.chan].active=false;
-      rWrite(0,0x9f|c.chan<<5);
+      chan[c.chan].keyOff=true;
       chan[c.chan].macroInit(NULL);
       break;
     case DIV_CMD_NOTE_OFF_ENV: