merge mapper code from FCEUX

[fceu.git] / mappers / 97.c

/* FCE Ultra - NES/Famicom Emulator
 *
 * Copyright notice for this file:
 *  Copyright (C) 2002 Xodnizel
 *
 * 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"



DECLFW(Mapper97_write)
{
ROM_BANK16(0xC000,V&15);
switch(V>>6)
 {
 case 0:break;
 case 1:MIRROR_SET2(0);break;
 case 2:MIRROR_SET2(1);break;
 case 3:break;
 }
}

void Mapper97_init(void)
{
  ROM_BANK16(0x8000,~0);
  SetWriteHandler(0x8000,0xffff,Mapper97_write);
}