From bfdfac004fe261239004662898b2b0bf8c1fee27 Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Thu, 21 Apr 2022 03:22:01 -0500
Subject: [PATCH] GUI: fix ins 0 being inserted on blank song

---
 TODO.md         | 1 -
 src/gui/gui.cpp | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/TODO.md b/TODO.md
index 03e465ce..7204a6d1 100644
--- a/TODO.md
+++ b/TODO.md
@@ -21,7 +21,6 @@
 - ability to customize startup system
 - store system presets in new file
 - Game Boy envelope macro/sequence
-- Game Boy envelope view
 - option to display chip names instead of "multi-system" on title bar
 - rewrite the system name detection function anyway
 - add nightly.link
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 068eb11d..8993a7d7 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -915,6 +915,7 @@ void FurnaceGUI::noteInput(int num, int key, int vol) {
     }
     pat->data[cursor.y][1]=(unsigned char)pat->data[cursor.y][1];
     if (latchIns==-2) {
+      if (curIns>=(int)e->song.ins.size()) curIns=-1;
       pat->data[cursor.y][2]=curIns;
     } else if (latchIns!=-1 && !e->song.ins.empty()) {
       pat->data[cursor.y][2]=MIN(((int)e->song.ins.size())-1,latchIns);