1 /* FCE Ultra - NES/Famicom Emulator
3 * Copyright notice for this file:
4 * Copyright (C) 2002 Ben Parnell
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
23 #define r1 mapbyte1[0]
24 #define r2 mapbyte1[1]
26 static void DoBS(void)
30 ROM_BANK32((r1&0xE)|(r2&1));
31 VROM_BANK8( ((r1&0xE)<<2) | ((r2>>4)&7) );
36 VROM_BANK8( ((r1&0xF)<<2) | ((r2>>4)&3) );
41 static void R1Set(uint8 V)
49 static void R2Set(uint8 V)
79 static void M15Restore(int version)
85 static void M15Reset(void)
92 void Mapper234_init(void)
94 SetWriteHandler(0xff80,0xff9f,R1W);
95 SetReadHandler(0xff80,0xff9f,R1R);
97 SetWriteHandler(0xffe8,0xfff7,R2W);
98 SetReadHandler(0xffe8,0xfff7,R2R);
100 SetReadHandler(0x6000,0x7FFF,0);
101 SetWriteHandler(0x6000,0x7FFF,0);
105 GameStateRestore=M15Restore;
106 MapperReset=M15Reset;