Add mapper 573.

src/boards/573.c

@@ -0,0 +1,48 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2025 NewRisingSun
+ *
+ * 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_latch.h"
+
+static DECLFR(readOB) {
+	return X.DB;
+}
+
+static void sync () {
+	if (Latch_address &0x02) {
+		setprg16(0x8000, Latch_address <<3 &0x10 | Latch_data &0x0F);
+		setprg16(0xC000, Latch_address <<3 &0x10 |             0x0F);
+	} else {
+		setprg16(0x8000, Latch_address <<3 &0x18 | Latch_data &0x07);
+		setprg16(0xC000, Latch_address <<3 &0x18 |             0x07);
+	}
+	SetReadHandler(0x8000, 0xFFFF, Latch_address &0x10 && ROM_size >8? readOB: CartBR);
+	setchr8(0);
+}
+
+static void trapLatchWrite (uint16 *newAddress, uint8 *newValue, uint8 romValue) {
+	if (Latch_address &0x20) *newAddress = Latch_address; /* Once bit 5 is set, only the inner bank bits can be modified. */
+	*newValue &= romValue; /* AND-type bus conflicts */
+}
+
+void Mapper573_Init (CartInfo *info) {
+	Latch_init(info, sync, 0x8000, 0xFFFF, trapLatchWrite);
+	info->Reset = Latch_power;
+}

src/ines.c

@@ -951,6 +951,7 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "Venus Turbo Game Doctor",  562, Mapper561_562_Init     )
 	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( "T-215",                    579, Mapper579_Init         )
 	INES_BOARD( "ET-82",                    581, Mapper581_Init         )
 	INES_BOARD( "HN-02",                    586, Mapper586_Init         )

src/ines.h

@@ -416,6 +416,7 @@ void Mapper559_Init(CartInfo *);
 void Mapper561_562_Init(CartInfo *);
 void Mapper563_Init(CartInfo *);
 void Mapper567_Init(CartInfo *);
+void Mapper573_Init(CartInfo *);
 void Mapper579_Init(CartInfo *);
 void Mapper581_Init(CartInfo *);
 void Mapper586_Init(CartInfo *);