From 8e64ecd23ad5ac7ef3ce7b22d79615c957469551 Mon Sep 17 00:00:00 2001
From: tildearrow <tildearrow@protonmail.com>
Date: Sun, 16 Oct 2022 00:53:12 -0500
Subject: [PATCH] Virtual Boy: fix sweep not working

---
 src/engine/platform/vb.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/engine/platform/vb.cpp b/src/engine/platform/vb.cpp
index a57d92cdf..e750bd7b5 100644
--- a/src/engine/platform/vb.cpp
+++ b/src/engine/platform/vb.cpp
@@ -335,7 +335,7 @@ int DivPlatformVB::dispatch(DivCommand c) {
       chWrite(4,0x07,modulation);
       if (modulation!=0) {
         chan[c.chan].envHigh&=~0x70;
-        chan[c.chan].envHigh|=0x10;
+        chan[c.chan].envHigh|=0x40;
       } else {
         chan[c.chan].envHigh&=~0x70;
       }