Add mapper 446 using mapper emulation cores that can be included in other multi-ASIC mappers.

src/boards/asic_tc3294.c

@@ -0,0 +1,106 @@
+/* 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_tc3294.h"
+#include "asic_mmc3.h"
+
+static void (*TC3294_cbSync)();
+static uint8 TC3294_index;
+static uint8 TC3294_reg[4];
+
+static SFORMAT TC3294_state[] = {
+	{ TC3294_reg,   8, "329S" },
+	{&TC3294_index, 1, "329I" },
+	{ 0 }
+};
+
+void TC3294_syncWRAM (int OR) {
+	MMC3_syncWRAM(OR);
+}
+
+void TC3294_syncPRG (int AND, int OR) {
+	int prgAND =~TC3294_reg[3] &0x3F;
+	int prgOR  = TC3294_reg[1] | TC3294_reg[2] <<2 &0x300;
+	MMC3_syncPRG(prgAND &AND, prgOR &~prgAND &AND | OR &~AND);
+}
+
+void TC3294_syncCHR (int AND, int OR) {
+	int chrAND =0xFF >>(~TC3294_reg[2] &0xF);
+	int chrOR  =TC3294_reg[0] | TC3294_reg[2] <<4 &0xF00;
+	MMC3_syncCHR(chrAND &AND, chrOR &~chrAND &AND | OR &~AND);
+}
+
+void TC3294_syncMirror () {
+	MMC3_syncMirror();
+}
+
+DECLFW(TC3294_write) {
+	if (~TC3294_reg[3] &0x40) {
+		TC3294_reg[TC3294_index++ &3] =V;
+		TC3294_cbSync();
+	}
+}
+
+static void TC3294_clear () {
+	TC3294_reg[0] = 0x00; TC3294_reg[1] = 0x00; TC3294_reg[2] = 0x0F; TC3294_reg[3] = 0x00;
+	TC3294_index = 0;
+	TC3294_cbSync();
+}
+
+static void TC3294_setHandlers () {
+}
+
+static void TC3294_configure (void (*sync)()) {
+	TC3294_cbSync = sync;
+}
+
+void TC3294_activate (uint8 clear, void (*sync)()) {
+	MMC3_activate(clear, sync, MMC3_TYPE_AX5202P, NULL, NULL, NULL, TC3294_write);
+	TC3294_configure(sync);
+	TC3294_setHandlers();
+	if (clear)
+		TC3294_clear();
+	else
+		TC3294_cbSync();
+}
+
+void TC3294_addExState () {
+	AddExState(TC3294_state, ~0, 0, 0);
+}
+
+void TC3294_restore (int version) {
+	TC3294_cbSync();
+}
+
+void TC3294_power () {
+	MMC3_power();
+	TC3294_setHandlers();
+	TC3294_clear();
+}
+
+void TC3294_init (CartInfo *info, void (*sync)()) {
+	MMC3_init(info, sync, MMC3_TYPE_AX5202P, NULL, NULL, NULL, TC3294_write);
+	TC3294_addExState();
+	TC3294_configure(TC3294_cbSync);
+	info->Power = TC3294_power;
+	info->Reset = TC3294_cbSync;
+	GameStateRestore = TC3294_restore;
+}