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1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
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4 | * Copyright (C) 2002 Xodnizel |
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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 |
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18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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19 | */ |
20 | |
21 | #include "mapinc.h" |
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22 | static uint8 MMC3_cmd; |
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23 | |
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24 | static DECLFW(Mapper76_write) |
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25 | { |
26 | switch(A&0xE001){ |
27 | case 0x8000: |
28 | MMC3_cmd = V; |
29 | break; |
30 | case 0x8001: |
31 | switch(MMC3_cmd&0x07){ |
32 | case 2: VROM_BANK2(0x000,V);break; |
33 | case 3: VROM_BANK2(0x800,V);break; |
34 | case 4: VROM_BANK2(0x1000,V);break; |
35 | case 5: VROM_BANK2(0x1800,V);break; |
36 | case 6: |
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37 | if(MMC3_cmd&0x40) ROM_BANK8(0xC000,V); |
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38 | else ROM_BANK8(0x8000,V); |
39 | break; |
40 | case 7: ROM_BANK8(0xA000,V); |
41 | break; |
42 | } |
43 | break; |
44 | case 0xA000: |
45 | MIRROR_SET(V&1); |
46 | break; |
47 | } |
48 | } |
49 | |
50 | void Mapper76_init(void) |
51 | { |
52 | SetWriteHandler(0x8000,0xffff,Mapper76_write); |
53 | } |
54 | |