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 void DoSync(uint32 A)
27 int32 p=((A>>3)&0xF) | ((A>>4)&0x10);
39 ROM_BANK16(0x8000,(p<<1)|((A&4)>>2));
40 ROM_BANK16(0xc000,(p<<1)|((A&4)>>2));
50 ROM_BANK16(0xC000,(p<<1)|7);
52 ROM_BANK16(0xC000,(p<<1)&(~7));
56 static DECLFW(Mapper227_write)
62 static void M227Reset(void)
68 static void M227Restore(int version)
70 DoSync(rg[0]|(rg[1]<<8));
73 void Mapper227_init(void)
75 SetWriteHandler(0x6000,0xffff,Mapper227_write);
76 MapperReset=M227Reset;
77 GameStateRestore=M227Restore;