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
24 #define map75sel mapbyte1[0]
25 #define map75ar mapbyte2
27 DECLFW(Mapper75_write)
31 case 0x8000:ROM_BANK8(0x8000,V);break;
33 VROM_BANK4(0x0000,map75ar[0]|((V&2)<<3));
34 VROM_BANK4(0x1000,map75ar[1]|((V&4)<<2));
35 map75sel=V;MIRROR_SET(V&1);break;
36 case 0xa000:ROM_BANK8(0xa000,V);break;
37 case 0xc000:ROM_BANK8(0xc000,V);break;
38 case 0xe000:V&=0xF;map75ar[0]=V;V|=(map75sel&2)<<3;VROM_BANK4(0x0000,V);break;
39 case 0xf000:V&=0xF;map75ar[1]=V;V|=(map75sel&4)<<2;VROM_BANK4(0x1000,V);break;
43 void Mapper75_init(void)
45 SetWriteHandler(0x8000,0xffff,Mapper75_write);