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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 | /* Original code provided by LULU */ |
24 | |
25 | static DECLFW(Mapper92_write) |
26 | { |
27 | uint8 reg=(A&0xF0)>>4; |
28 | uint8 bank=A&0xF; |
29 | |
30 | if(A>=0x9000) |
31 | { |
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32 | if(reg==0xD) { ROM_BANK16(0xc000,bank); X6502_Rebase(); } |
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33 | else if(reg==0xE) VROM_BANK8(bank); |
34 | } |
35 | else |
36 | { |
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37 | if(reg==0xB) { ROM_BANK16(0xc000,bank); X6502_Rebase(); } |
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38 | else if(reg==0x7) VROM_BANK8(bank); |
39 | } |
40 | } |
41 | |
42 | void Mapper92_init(void) |
43 | { |
44 | SetWriteHandler(0x8000,0xFFFF,Mapper92_write); |
45 | } |