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

src/boards/830118C.c

@@ -0,0 +1,68 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2008 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
+ */
+
+// M-022 MMC3 based 830118C T-106 4M + 4M
+
+#include "mapinc.h"
+#include "mmc3.h"
+
+static void BMC830118CCW(uint32 A, uint8 V) {
+	setchr1(A, (V & 0x7F) | ((EXPREGS[0] & 0x0c) << 5));
+}
+
+static void BMC830118CPW(uint32 A, uint8 V) {
+	if ((EXPREGS[0] & 0x0C) == 0x0C) {
+		if (A == 0x8000) {
+			setprg8(A, (V & 0x0F) | ((EXPREGS[0] & 0x0c) << 2));
+			setprg8(0xC000, (V & 0x0F) | 0x32);
+		} else if (A == 0xA000) {
+			setprg8(A, (V & 0x0F) | ((EXPREGS[0] & 0x0c) << 2));
+			setprg8(0xE000, (V & 0x0F) | 0x32);
+		}
+	} else {
+		setprg8(A, (V & 0x0F) | ((EXPREGS[0] & 0x0c) << 2));
+	}
+}
+
+static DECLFW(BMC830118CLoWrite) {
+	EXPREGS[0] = V;
+	FixMMC3PRG(MMC3_cmd);
+	FixMMC3CHR(MMC3_cmd);
+}
+
+static void BMC830118CReset(void) {
+	EXPREGS[0] = 0;
+	MMC3RegReset();
+}
+
+static void BMC830118CPower(void) {
+	EXPREGS[0] = 0;
+	GenMMC3Power();
+	SetWriteHandler(0x6800, 0x68FF, BMC830118CLoWrite);
+}
+
+void BMC830118C_Init(CartInfo *info) {
+	GenMMC3_Init(info, 128, 128, 8, 0);
+	pwrap = BMC830118CPW;
+	cwrap = BMC830118CCW;
+	info->Power = BMC830118CPower;
+	info->Reset = BMC830118CReset;
+	AddExState(EXPREGS, 1, 0, "EXPR");
+}