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 | static DECLFW(Mapper88_write) |
24 | { |
25 | //if(A>=0x8002 || A<0x8000) |
26 | //if(A==0xc000) |
27 | // printf("$%04x:$%02x\n",A,V); |
28 | switch(A) //&0xc001) |
29 | { |
30 | //case 0xc000: |
31 | //MIRROR_SET((V&0x40)>>6); |
32 | //onemir((V&0x40)>>6); |
33 | //break; |
34 | case 0x8000:mapbyte1[0]=V;break; |
35 | case 0x8001: |
36 | switch(mapbyte1[0]&7) |
37 | { |
38 | case 0:VROM_BANK2(0,V>>1);break; |
39 | case 1:VROM_BANK2(0x800,V>>1);break; |
40 | case 2:VROM_BANK1(0x1000,V|0x40);break; |
41 | case 3:VROM_BANK1(0x1400,V|0x40);break; |
42 | case 4:VROM_BANK1(0x1800,V|0x40);break; |
43 | case 5:VROM_BANK1(0x1c00,V|0x40);break; |
44 | case 6:ROM_BANK8(0x8000,V);break; |
45 | case 7:ROM_BANK8(0xA000,V);break; |
46 | } |
47 | break; |
48 | |
49 | } |
50 | } |
51 | |
52 | void Mapper88_init(void) |
53 | { |
54 | SetWriteHandler(0x8000,0xffff,Mapper88_write); |
55 | } |
56 | |