From 7b4f0848308c313745c409cc2830cf551bc05c87 Mon Sep 17 00:00:00 2001
From: NewRisingSun <8vytz1+dhp372pv94ebg@sharklasers.com>
Date: Tue, 9 Sep 2025 00:51:25 +0200
Subject: [PATCH] Add mapper 578.

---
 src/boards/432.c |  8 +++----
 src/boards/578.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++
 src/ines.c       |  1 +
 src/ines.h       |  1 +
 4 files changed, 66 insertions(+), 4 deletions(-)
 create mode 100644 src/boards/578.c

diff --git a/src/boards/432.c b/src/boards/432.c
index 002718d..c17c897 100644
--- a/src/boards/432.c
+++ b/src/boards/432.c
@@ -32,10 +32,10 @@ static DECLFR(readPad) {
 }
 
 static void sync() {
-	int prgAND =reg[1] &0x02? 0x0F: 0x1F;
-	int chrAND =reg[1] &0x20 && submapper == 3? 0x1FF: reg[1] &0x04? 0x7F: 0xFF;
-	int prgOR  =reg[1] <<4 &0x10 | reg[1] <<1 &0x60;
-	int chrOR  =reg[1] <<7 &0x80 | reg[1] <<5 &0x100 | reg[1] <<4 &0x200;
+	int prgAND = reg[1] &0x02? 0x0F: 0x1F;
+	int chrAND = reg[1] &0x20 && submapper == 3? 0x1FF: reg[1] &0x04? 0x7F: 0xFF;
+	int prgOR  = reg[1] <<4 &0x10 | reg[1] <<1 &0x60;
+	int chrOR  = reg[1] <<7 &0x80 | reg[1] <<5 &0x100 | reg[1] <<4 &0x200;
 	MMC3_syncPRG(prgAND, prgOR &~prgAND);
 	MMC3_syncCHR(chrAND, chrOR &~chrAND);
 	MMC3_syncMirror();
diff --git a/src/boards/578.c b/src/boards/578.c
new file mode 100644
index 0000000..c70a936
--- /dev/null
+++ b/src/boards/578.c
@@ -0,0 +1,60 @@
+/* FCEUmm - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2020
+ *
+ * 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
+ *
+ *
+ */
+
+#include "mapinc.h"
+#include "asic_mmc3.h"
+
+static uint8 reg;
+
+static void sync() {
+	int prgAND = reg &0x02 && reg &0x04? 0x1F: 0x0F;
+	int chrAND = reg &0x02 && reg &0x04? 0xFF: 0x7F;
+	int prgOR  = reg <<4;
+	int chrOR  = reg <<7;
+	MMC3_syncPRG(prgAND, prgOR &~prgAND);
+	MMC3_syncCHR(chrAND, chrOR &~chrAND);
+	MMC3_syncMirror();
+}
+
+static DECLFW(writeReg) {
+	reg = V;
+	sync();
+}
+
+static void reset() {
+	reg = 0;
+	sync();
+}
+
+static void power() {
+	int i;
+	reg = 0;
+	MMC3_power();
+	for (int i = 0x8000; i < 0xFFFF; i +=4) SetWriteHandler(i |2, i |3, writeReg);
+}
+
+void Mapper578_Init(CartInfo *info) {
+	MMC3_init(info, sync, MMC3_TYPE_AX5202P, NULL, NULL, NULL, writeReg);
+	info->Power = power;
+	info->Reset = reset;
+	AddExState(&reg, 1, 0, "EXPR");
+}
diff --git a/src/ines.c b/src/ines.c
index 93cf2f2..39716d5 100644
--- a/src/ines.c
+++ b/src/ines.c
@@ -952,6 +952,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "J-2020",                   563, Mapper563_Init         )
 	INES_BOARD( "Top Ten Variety (SF III)", 567, Mapper567_Init         )
 	INES_BOARD( "5068",                     573, Mapper573_Init         )
+	INES_BOARD( "910610",                   578, Mapper578_Init         )
 	INES_BOARD( "T-215",                    579, Mapper579_Init         )
 	INES_BOARD( "ET-82",                    581, Mapper581_Init         )
 	INES_BOARD( "8203",                     583, Mapper583_Init         )
diff --git a/src/ines.h b/src/ines.h
index 5ba4eb1..d262f3f 100644
--- a/src/ines.h
+++ b/src/ines.h
@@ -417,6 +417,7 @@ void Mapper561_562_Init(CartInfo *);
 void Mapper563_Init(CartInfo *);
 void Mapper567_Init(CartInfo *);
 void Mapper573_Init(CartInfo *);
+void Mapper578_Init(CartInfo *);
 void Mapper579_Init(CartInfo *);
 void Mapper581_Init(CartInfo *);
 void Mapper583_Init(CartInfo *);