/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 2006 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 uint8 *WRAM=NULL;
static uint8 reg;

static SFORMAT StateRegs[]=
{
  {&reg, 1, "REG"},
  {0}
};

static void Sync(void)
{
  setchr8(0);
  setprg8r(0x10,0x6000,(reg&0xC0)>>6);
  setprg32(0x8000,reg&0x1F);
//  setmirror(((reg&0x20)>>5));
}

static DECLFW(UNLEDU2000HiWrite)
{
//  FCEU_printf("%04x:%02x\n",A,V);
  reg=V;
  Sync();
}

static void UNLEDU2000Power(void)
{
  setmirror(MI_0);
  SetReadHandler(0x6000,0xFFFF,CartBR);
  SetWriteHandler(0x6000,0xFFFF,CartBW);
  SetWriteHandler(0x8000,0xFFFF,UNLEDU2000HiWrite);
  reg=0;
  Sync();
}

static void UNLEDU2000Close(void)
{
  if(WRAM)
    FCEU_gfree(WRAM);
  WRAM=NULL;
}

static void UNLEDU2000Restore(int version)
{
  Sync();
}

void UNLEDU2000_Init(CartInfo *info)
{
  info->Power=UNLEDU2000Power;
  info->Close=UNLEDU2000Close;
  GameStateRestore=UNLEDU2000Restore;
  WRAM=(uint8*)FCEU_gmalloc(32768);
  SetupCartPRGMapping(0x10,WRAM,32768,1);
  info->SaveGame[0]=WRAM;
  info->SaveGameLen[0]=32768;
  AddExState(WRAM, 32768, 0, "WRAM");
  AddExState(StateRegs, ~0, 0, 0);
}