c62d2810 |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
4 | * Copyright (C) 2002 Ben Parnell |
5 | * |
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. |
10 | * |
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. |
15 | * |
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 |
19 | */ |
20 | |
21 | #include "mapinc.h" |
22 | |
23 | uint8 doh; |
24 | |
25 | static DECLFW(Mapper249_write) |
26 | { |
27 | switch(A&0xe001) |
28 | { |
29 | case 0x8000:doh=V;break; |
30 | case 0x8001:switch(doh&7) |
31 | { |
32 | case 0:VROM_BANK2(0x0000,V>>1);break; |
33 | case 1:VROM_BANK2(0x0800,V>>1);break; |
34 | case 2:VROM_BANK1(0x1000,V);break; |
35 | // case 6:ROM_BANK8(0xa000,V);break; |
36 | // case 2:ROM_BANK8(0x8000,V);break; |
37 | } |
38 | } |
39 | // printf("$%04x:$%02x\n",A,V); |
40 | } |
41 | |
42 | void Mapper249_init(void) |
43 | { |
44 | SetWriteHandler(0x8000,0xffff,Mapper249_write); |
45 | } |
46 | |