merge mappers from FCEU-mm

[fceu.git] / mappers / 62.c

/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 2003 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 DECLFW(Mapper62_write)
{
  VROM_BANK8(((A&0x1F)<<2)|(V&0x03));
  if(A&0x20) {
     ROM_BANK16(0x8000,(A&0x40)|((A>>8)&0x3F));
     ROM_BANK16(0xc000,(A&0x40)|((A>>8)&0x3F));
  }
  else
     ROM_BANK32(((A&0x40)|((A>>8)&0x3F))>>1);
  MIRROR_SET((A&0x80)>>7);
}

void Mapper62_init(void)
{
        SetWriteHandler(0x8000,0xffff, Mapper62_write);
        ROM_BANK32(0);
}