From f2fdeb9df84fc4ba61c32c57418a5204f9f553b2 Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Thu, 12 Jan 2023 17:59:40 -0500
Subject: [PATCH] Game Boy: fix period 0 causing overflow

issue #835
---
 src/engine/platform/gb.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/engine/platform/gb.cpp b/src/engine/platform/gb.cpp
index bdee28a41..43bcd882d 100644
--- a/src/engine/platform/gb.cpp
+++ b/src/engine/platform/gb.cpp
@@ -291,7 +291,7 @@ void DivPlatformGB::tick(bool sysTick) {
       } else {
         chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,chan[i].fixedArp?chan[i].baseNoteOverride:chan[i].arpOff,chan[i].fixedArp,true,0,chan[i].pitch2,chipClock,CHIP_DIVIDER);
         if (chan[i].freq>2047) chan[i].freq=2047;
-        if (chan[i].freq<0) chan[i].freq=0;
+        if (chan[i].freq<1) chan[i].freq=1;
       }
       if (chan[i].keyOn) {
         if (i==2) { // wave