diff --git a/src/boards/474.cpp b/src/boards/474.cpp
new file mode 100644
index 00000000..f882ed46
--- /dev/null
+++ b/src/boards/474.cpp
@@ -0,0 +1,71 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ * Copyright (C) Akerasoft 2023
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * FDS Conversion
+ *
+ */
+
+#include "mapinc.h"
+
+static DECLFR(M474ReadCart) {
+ return Page[A >> 14][A];
+}
+
+static void Sync(void) {
+ setchr8(0);
+ setprg16(0x4000, 0);
+ setprg16(0x8000, 1);
+ setprg16(0xC000, 2);
+}
+
+
+static void M474Power(void) {
+ SetupCartCHRMapping(0x00, &PRGptr[0][0xC000], 0x2000, 0);
+ // not modify fceux other code,
+ // fceux load prg is 64k, have 8k chr in 0xC000
+ // fceux load chr is 8k,but 0xFF or 0x00
+ SetReadHandler(0x4020, 0xFFFF, M474ReadCart);
+ Sync();
+}
+
+static void M474Power_submapper1(void) {
+ SetupCartCHRMapping(0x00, &PRGptr[0][0xC000], 0x2000, 0);
+ // not modify fceux other code,
+ // fceux load prg is 64k, have 8k chr in 0xC000
+ // fceux load chr is 8k,but 0xFF or 0x00
+ SetReadHandler(0x4800, 0xFFFF, M474ReadCart);
+ Sync();
+}
+
+static void StateRestore(int version) {
+ Sync();
+}
+
+void Mapper474_Init(CartInfo* info) {
+ if (info->submapper == 1)
+ {
+ info->Power = M474Power_submapper1;
+ }
+ else
+ {
+ // submapper 0
+ info->Power = M474Power;
+ }
+ GameStateRestore = StateRestore;
+}
diff --git a/src/ines.cpp b/src/ines.cpp
index be7543a6..477f0abe 100644
--- a/src/ines.cpp
+++ b/src/ines.cpp
@@ -793,6 +793,7 @@ BMAPPINGLocal bmap[] = {
{"Impact Soft MMC3 Flash Board", 406, Mapper406_Init },
{"INX_007T_V01", 470, INX_007T_Init },
+ {"Akerasoft NROM3XX", 474, Mapper474_Init },
{"KONAMI QTAi Board", 547, QTAi_Init },
diff --git a/src/ines.h b/src/ines.h
index f1b0d231..1a59a324 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -277,6 +277,7 @@ void Mapper254_Init(CartInfo *);
void Mapper255_Init(CartInfo *);
void Mapper354_Init(CartInfo *);
void Mapper406_Init(CartInfo *);
+void Mapper474_Init(CartInfo*);
void INX_007T_Init(CartInfo* info);
diff --git a/vc/vc14_fceux.vcxproj b/vc/vc14_fceux.vcxproj
index f5197ad8..d9b7fb3e 100644
--- a/vc/vc14_fceux.vcxproj
+++ b/vc/vc14_fceux.vcxproj
@@ -445,6 +445,7 @@ xcopy /y /d "$(ProjectDir)\..\src\drivers\win\7z_64.dll" "$(OutDir)"
+
@@ -1540,4 +1541,4 @@ xcopy /y /d "$(ProjectDir)\..\src\drivers\win\7z_64.dll" "$(OutDir)"
-
+
\ No newline at end of file
diff --git a/vc/vc14_fceux.vcxproj.filters b/vc/vc14_fceux.vcxproj.filters
index 9392e42e..aee2e0e4 100644
--- a/vc/vc14_fceux.vcxproj.filters
+++ b/vc/vc14_fceux.vcxproj.filters
@@ -1121,6 +1121,11 @@
boards
+
+
+
+ boards
+
@@ -1630,6 +1635,9 @@
drivers\win
+
+
+