1 /* FCE Ultra - NES/Famicom Emulator
3 * Copyright notice for this file:
4 * Copyright (C) 2002 Xodnizel
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 static DECLFW(Mapper57_write)
35 ROM_BANK16(0x8000,(V>>5)&3);
36 ROM_BANK16(0xc000,(V>>5)&3);
38 MIRROR_SET((V&0x8)>>3);
42 VROM_BANK8((mapbyte1[1]&3)|(mapbyte1[0]&7)|((mapbyte1[0]&0x10)>>1));
43 //printf("$%04x:$%02x\n",A,V);
46 void Mapper57_init(void)
48 SetWriteHandler(0x8000,0xffff,Mapper57_write);