From 4546df5636687b613a538a8ee7e800a21f542dfe Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Fri, 21 Mar 2025 16:01:07 -0500
Subject: [PATCH] ES5506: fix memory overflow

issue #2422
---
 src/engine/platform/es5506.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/engine/platform/es5506.cpp b/src/engine/platform/es5506.cpp
index 2f5f7b3c1..d8331a787 100644
--- a/src/engine/platform/es5506.cpp
+++ b/src/engine/platform/es5506.cpp
@@ -1342,7 +1342,7 @@ void DivPlatformES5506::renderSamples(int sysID) {
       length=4194304-128;
     }
     if ((memPos&0xc00000)!=((memPos+length+128)&0xc00000)) {
-      memPos=((memPos+0x3fffff)&0xc00000)+128;
+      memPos=((memPos+0x3fffff)&0xffc00000)+128;
     }
     if (memPos>=(getSampleMemCapacity()-128)) {
       logW("out of ES5506 memory for sample %d!",i);