Initial commit - http://sourceforge.net/p/fceumm/code/160/

src/boards/62.c

@@ -0,0 +1,69 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2012 CaH4e3
+ *
+ * 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"
+
+static uint8 bank;
+static uint16 mode;
+static SFORMAT StateRegs[] =
+{
+	{ &bank, 1, "BANK" },
+	{ &mode, 2, "MODE" },
+	{ 0 }
+};
+
+static void Sync(void) {
+	setchr8(((mode & 0x1F) << 2) | (bank & 0x03));
+	if (mode & 0x20) {
+		setprg16(0x8000, (mode & 0x40) | ((mode >> 8) & 0x3F));
+		setprg16(0xc000, (mode & 0x40) | ((mode >> 8) & 0x3F));
+	} else
+		setprg32(0x8000, ((mode & 0x40) | ((mode >> 8) & 0x3F)) >> 1);
+	setmirror(((mode >> 7) & 1) ^ 1);
+}
+
+static DECLFW(M62Write) {
+	mode = A & 0x3FFF;
+	bank = V & 3;
+	Sync();
+}
+
+static void M62Power(void) {
+	bank = mode = 0;
+	Sync();
+	SetWriteHandler(0x8000, 0xFFFF, M62Write);
+	SetReadHandler(0x8000, 0xFFFF, CartBR);
+}
+
+static void M62Reset(void) {
+	bank = mode = 0;
+	Sync();
+}
+
+static void StateRestore(int version) {
+	Sync();
+}
+
+void Mapper62_Init(CartInfo *info) {
+	info->Power = M62Power;
+	info->Reset = M62Reset;
+	AddExState(&StateRegs, ~0, 0, 0);
+	GameStateRestore = StateRestore;
+}