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

src/boards/asic_vrc3.h

@@ -0,0 +1,34 @@
+/* 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
+ */
+
+#ifndef _ASIC_VRC3_H
+#define _ASIC_VRC3_H
+
+void VRC3_syncWRAM (int);
+void VRC3_syncPRG (int, int);
+void VRC3_syncCHR (int, int);
+DECLFW (VRC3_write);
+void VRC3_activate (uint8, void (*)());
+void VRC3_addExState ();
+void VRC3_restore (int);
+void VRC3_power ();
+void VRC3_init (CartInfo *, void (*)());
+
+#endif