BMC-K-3088: move to its own mapper for better compatibility.

src/boards/bmck3088.c

@@ -0,0 +1,72 @@
+/* FCEUmm - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2019 Libretro Team
+ *
+ * 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
+ */
+
+/* NES 2.0 Mapper 287
+ * similar to BMC-411120-C but without jumper or dipswitch */
+
+#include "mapinc.h"
+#include "mmc3.h"
+
+static void BMCK3088CW(uint32 A, uint8 V) {
+	if (CHRptr[EXPREGS[0] & 7])
+		setchr1r(EXPREGS[0] & 7, A, V);
+	else
+		setchr1(A, V | ((EXPREGS[0] & 3) << 7));
+}
+
+static void BMCK3088PW(uint32 A, uint8 V) {
+	if (PRGptr[EXPREGS[0] & 7]) {
+		uint8 chip = EXPREGS[0] & 7;
+		if (EXPREGS[0] & 8)
+			setprg32r(chip, 0x8000, ((EXPREGS[0] >> 4) & 3));
+		else
+			setprg8r(chip, A, (V & 0x0F));
+	} else {
+		if (EXPREGS[0] & 8)
+			setprg32(0x8000, ((EXPREGS[0] >> 4) & 3) | (0x0C));
+		else
+			setprg8(A, (V & 0x0F) | ((EXPREGS[0] & 3) << 4));
+	}
+}
+
+static DECLFW(BMCK3088LoWrite) {
+	EXPREGS[0] = A;
+	FixMMC3PRG(MMC3_cmd);
+	FixMMC3CHR(MMC3_cmd);
+}
+
+static void BMCK3088Reset(void) {
+	EXPREGS[0] = 0;
+	MMC3RegReset();
+}
+
+static void BMCK3088Power(void) {
+	GenMMC3Power();
+	SetWriteHandler(0x6000, 0x7FFF, BMCK3088LoWrite);
+}
+
+void BMCK3088_Init(CartInfo *info) {
+	GenMMC3_Init(info, 128, 128, 8, 0);
+	pwrap = BMCK3088PW;
+	cwrap = BMCK3088CW;
+	info->Power = BMCK3088Power;
+	info->Reset = BMCK3088Reset;
+	AddExState(EXPREGS, 1, 0, "EXPR");
+}

src/unif.c

@@ -479,7 +479,7 @@ static BMAPPING bmap[] = {
 	{ "RESETNROM-XIN1", BMCRESETNROMXIN1_Init, 0 },
 	{ " BMC-RESET-TXROM", BMCRESETTXROM_Init, 0 },
 	{ "RESET-TXROM", BMCRESETTXROM_Init, 0 },
-	{ "K-3088", BMC411120C_Init, 0 },
+	{ "K-3088", BMCK3088_Init, 0 },
 	{ "FARID_SLROM_8-IN-1", FARIDSLROM8IN1_Init, 0 },
 	{ "830425C-4391T", BMC830425C4391T_Init, 0 },
 	{ "TJ-03", BMCTJ03_Init, 0 },

src/unif.h

@@ -180,6 +180,7 @@ void MINDKIDS_Init(CartInfo *info);			/* m268 */
 void UNLKS7021A_Init(CartInfo *info);		/* m525 */
 void BTL900218_Init(CartInfo *info);		/* m524 */
 void UNLAX40G_Init(CartInfo *info);			/* m527 */
+void BMCK3088_Init(CartInfo *info);			/* m287 */
 
 #ifdef COPYFAMI
 void MapperCopyFamiMMC3_Init(CartInfo *info);