+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ * Copyright (C) 2005 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include "mapinc.h"
+
+static uint16 addrreg;
+static uint8 datareg;
+static uint8 busy;
+static SFORMAT StateRegs[]=
+{
+ {&addrreg, 2, "ADDRREG"},
+ {&datareg, 1, "DATAREG"},
+ {&busy, 1, "BUSY"},
+ {0}
+};
+
+static void Sync(void)
+{
+ setprg16(0x8000,(datareg&7)|((addrreg&0x60)>>2)|((addrreg&0x100)>>3));
+ setprg16(0xC000,7|((addrreg&0x60)>>2)|((addrreg&0x100)>>3));
+ setmirror(((addrreg&2)>>1)^1);
+}
+
+static DECLFW(BMCT262Write)
+{
+ if(busy||(A==0x8000))
+ datareg=V;
+ else
+ {
+ addrreg=A;
+ busy=1;
+ }
+ Sync();
+}
+
+static void BMCT262Power(void)
+{
+ setchr8(0);
+ SetWriteHandler(0x8000,0xFFFF,BMCT262Write);
+ SetReadHandler(0x8000,0xFFFF,CartBR);
+ busy=0;
+ addrreg=0;
+ datareg=0;
+ Sync();
+}
+
+static void BMCT262Reset(void)
+{
+ busy=0;
+ addrreg=0;
+ datareg=0;
+ Sync();
+}
+
+static void BMCT262Restore(int version)
+{
+ Sync();
+}
+
+void BMCT262_Init(CartInfo *info)
+{
+ info->Power=BMCT262Power;
+ info->Reset=BMCT262Reset;
+ GameStateRestore=BMCT262Restore;
+ AddExState(&StateRegs, ~0, 0, 0);
+}