From c601e0e4f669f3d5622b5face1e3228dcf72253c Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Wed, 30 Apr 2025 05:01:56 -0500
Subject: [PATCH] YM2608: implement RAM for YM2608-LLE

---
 src/engine/platform/ym2608.cpp | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/engine/platform/ym2608.cpp b/src/engine/platform/ym2608.cpp
index 876957b94..5cb6932c2 100644
--- a/src/engine/platform/ym2608.cpp
+++ b/src/engine/platform/ym2608.cpp
@@ -661,9 +661,16 @@ void DivPlatformYM2608::acquire_lle(short** buf, size_t len) {
         adMemAddr|=newAddr;
       }
 
-      if (fm_lle.o_romcs==0) {
-        fm_lle.input.dm=adpcmBMem[adMemAddr&0x3ffff];
-        fm_lle.input.dt0=fm_lle.input.dm&1;
+      if (memConfig&1) {
+        if (fm_lle.o_romcs==0) {
+          fm_lle.input.dm=adpcmBMem[adMemAddr&0x3ffff];
+          fm_lle.input.dt0=fm_lle.input.dm&1;
+        }
+      } else {
+        if (fm_lle.o_mden==1) {
+          fm_lle.input.dm=adpcmBMem[adMemAddr&0x3ffff];
+          fm_lle.input.dt0=fm_lle.input.dm&1;
+        }
       }
       cas=fm_lle.o_cas;
       ras=fm_lle.o_ras;