Add mappers 341.1 and 343.

src/boards/341.c

@@ -0,0 +1,40 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2026 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"
+
+uint8 submapper;
+
+static void sync () {
+	setprg32(0x8000, Latch_address >>8);
+	setchr8(Latch_address >>8);
+	setmirror(Latch_address &(submapper == 1? 0x800: 0x200)? MI_H: MI_V);
+}
+
+static void trapLatchWrite (uint16 *newAddress, uint8 *newValue, uint8 romValue) {
+	if (!((*newAddress &0xF0) == 0xA0)) *newAddress = Latch_address; /* Update address only if new A7..A4 = $A */
+}
+
+void Mapper341_Init (CartInfo *info) {
+	submapper = info->submapper;
+	Latch_init(info, sync, 0x8000, 0xFFFF, submapper == 1? trapLatchWrite: NULL);
+	info->Reset = Latch_clear;
+}

src/boards/343.c

@@ -0,0 +1,53 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2026 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 uint8 reg;
+
+static void sync () {
+	setprg32(0x8000, Latch_data);
+	setchr8(0);
+	setmirror(reg &0x08? MI_H: MI_V);
+}
+
+static DECLFW (writeReg) {
+	reg = V;
+	sync();
+}
+
+static void reset () {
+	reg = 0;
+	Latch_clear();
+}
+
+static void power () {
+	reg = 0;
+	Latch_power();
+	SetWriteHandler(0x5000, 0x5FFF, writeReg);
+}
+
+void Mapper343_Init (CartInfo *info) {
+	Latch_init(info, sync, 0x8000, 0xFFFF, NULL);
+	info->Power = power;
+	info->Reset = reset;
+	AddExState(&reg, 1, 0, "REGS");
+}

src/boards/addrlatch.c

@@ -696,23 +696,6 @@ void BMCG146_Init(CartInfo *info) {
 	Latch_Init(info, BMCG146Sync, NULL, 0x0000, 0x8000, 0xFFFF, 0);
 }
 
-/*-------------- BMC-TJ-03 ------------------------*/
-/* NES 2.0 mapper 341 is used for a simple 4-in-1 multicart */
-
-static void BMCTJ03Sync(void) {
-	uint8 mirr = latche &(PRGsize[0] &0x40000? 0x800: 0x200)? MI_H: MI_V;
-	uint8 bank = latche >> 8;
-
-	setprg32(0x8000, bank);
-	setchr8(bank);
-
-	setmirror(mirr);
-}
-
-void BMCTJ03_Init(CartInfo *info) {
-	Latch_Init(info, BMCTJ03Sync, NULL, 0x0000, 0x8000, 0xFFFF, 0);
-}
-
 /*-------------- BMC-SA005-A ------------------------*/
 /* NES 2.0 mapper 338 is used for a 16-in-1 and a 200/300/600/1000-in-1 multicart.
  * http://wiki.nesdev.com/w/index.php/NES_2.0_Mapper_338 */

src/ines.c

@@ -786,8 +786,9 @@ INES_BOARD_BEGIN()
 	INES_BOARD( "SA005-A",                  338, BMCSA005A_Init         )
 	INES_BOARD( "K-3006",                   339, BMCK3006_Init          )
 	INES_BOARD( "K-3036",                   340, Mapper340_Init         )
-	INES_BOARD( "TJ-03",                    341, BMCTJ03_Init           )
+	INES_BOARD( "TJ-03",                    341, Mapper341_Init         )
 	INES_BOARD( "COOLGIRL",                 342, COOLGIRL_Init          )
+	INES_BOARD( "I030",                     343, Mapper343_Init         )
 	INES_BOARD( "GN-26",                    344, BMCGN26_Init           )
 	INES_BOARD( "L6IN1",                    345, BMCL6IN1_Init          )
 	INES_BOARD( "KS7012",                   346, UNLKS7012_Init         )

src/ines.h

@@ -281,6 +281,8 @@ void Mapper326_Init(CartInfo *);
 void Mapper330_Init(CartInfo *);
 void Mapper334_Init(CartInfo *);
 void Mapper340_Init(CartInfo *);
+void Mapper341_Init(CartInfo *);
+void Mapper343_Init(CartInfo *);
 void Mapper351_Init(CartInfo *);
 void Mapper352_Init(CartInfo *);
 void Mapper353_Init(CartInfo *);

src/unif.c

@@ -590,7 +590,7 @@ static BMAPPING bmap[] = {
 	{ "K-3088",                     287, BMCK3088_Init,         0 },
 	{ "FARID_SLROM_8-IN-1",         323, FARIDSLROM8IN1_Init,   0 },
 	{ "830425C-4391T",              320, BMC830425C4391T_Init,  0 },
-	{ "TJ-03",                      341, BMCTJ03_Init,          0 },
+	{ "TJ-03",                      341, Mapper341_Init,        0 },
 	{ "CTC-09",                     335, BMCCTC09_Init,         0 },
 	{ "K-3046",                     336, BMCK3046_Init,         0 },
 	{ "SA005-A",                    338, BMCSA005A_Init,        0 },

src/unif.h

@@ -158,7 +158,6 @@ void LH51_Init(CartInfo *info);				/* m309 */
 void BMCRESETTXROM_Init(CartInfo *info);	/* m313 */
 void FARIDSLROM8IN1_Init(CartInfo *info);	/* m323 */
 void BMC830425C4391T_Init(CartInfo *info);	/* m320 */
-void BMCTJ03_Init(CartInfo *info);			/* m341 */
 void BMCCTC09_Init(CartInfo *info);			/* m335 */
 void BMCK3046_Init(CartInfo *info);			/* m336 */
 void BMCSA005A_Init(CartInfo *info);		/* m338 */