d97315ac |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
e2d0dd92 |
4 | * Copyright (C) 2005 CaH4e3 |
d97315ac |
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" |
e2d0dd92 |
22 | #include "mmc3.h" |
d97315ac |
23 | |
e2d0dd92 |
24 | static uint8 lut[256]={ |
d97315ac |
25 | 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x59, 0x49, 0x19, 0x09, 0x59, 0x49, 0x19, 0x09, |
26 | 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x51, 0x41, 0x11, 0x01, 0x51, 0x41, 0x11, 0x01, |
27 | 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x59, 0x49, 0x19, 0x09, 0x59, 0x49, 0x19, 0x09, |
28 | 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x51, 0x41, 0x11, 0x01, 0x51, 0x41, 0x11, 0x01, |
29 | 0x00, 0x10, 0x40, 0x50, 0x00, 0x10, 0x40, 0x50,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
30 | 0x08, 0x18, 0x48, 0x58, 0x08, 0x18, 0x48, 0x58,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
31 | 0x00, 0x10, 0x40, 0x50, 0x00, 0x10, 0x40, 0x50,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
32 | 0x08, 0x18, 0x48, 0x58, 0x08, 0x18, 0x48, 0x58,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
33 | 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x58, 0x48, 0x18, 0x08, 0x58, 0x48, 0x18, 0x08, |
34 | 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x50, 0x40, 0x10, 0x00, 0x50, 0x40, 0x10, 0x00, |
35 | 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x58, 0x48, 0x18, 0x08, 0x58, 0x48, 0x18, 0x08, |
36 | 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59, 0x59,0x50, 0x40, 0x10, 0x00, 0x50, 0x40, 0x10, 0x00, |
37 | 0x01, 0x11, 0x41, 0x51, 0x01, 0x11, 0x41, 0x51,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
38 | 0x09, 0x19, 0x49, 0x59, 0x09, 0x19, 0x49, 0x59,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
39 | 0x01, 0x11, 0x41, 0x51, 0x01, 0x11, 0x41, 0x51,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
40 | 0x09, 0x19, 0x49, 0x59, 0x09, 0x19, 0x49, 0x59,0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 |
e2d0dd92 |
41 | }; |
d97315ac |
42 | |
e2d0dd92 |
43 | static void M208PW(uint32 A, uint8 V) |
d97315ac |
44 | { |
e2d0dd92 |
45 | setprg32(0x8000,EXPREGS[5]); |
d97315ac |
46 | } |
47 | |
e2d0dd92 |
48 | static DECLFW(M208Write) |
d97315ac |
49 | { |
e2d0dd92 |
50 | EXPREGS[5]=(V&0x1)|((V>>3)&0x2); |
51 | FixMMC3PRG(MMC3_cmd); |
d97315ac |
52 | } |
53 | |
e2d0dd92 |
54 | static DECLFW(M208ProtWrite) |
d97315ac |
55 | { |
e2d0dd92 |
56 | if(A<=0x57FF) |
57 | EXPREGS[4]=V; |
58 | else |
59 | EXPREGS[(A&0x03)]=V^lut[EXPREGS[4]]; |
d97315ac |
60 | } |
61 | |
e2d0dd92 |
62 | static DECLFR(M208ProtRead) |
d97315ac |
63 | { |
e2d0dd92 |
64 | return(EXPREGS[(A&0x3)]); |
d97315ac |
65 | } |
66 | |
e2d0dd92 |
67 | static void M208Power(void) |
d97315ac |
68 | { |
e2d0dd92 |
69 | EXPREGS[5]=3; |
70 | GenMMC3Power(); |
71 | SetWriteHandler(0x4800,0x4FFF,M208Write); |
72 | SetWriteHandler(0x5000,0x5fff,M208ProtWrite); |
73 | SetReadHandler(0x5800,0x5FFF,M208ProtRead); |
74 | SetReadHandler(0x8000,0xffff,CartBR); |
d97315ac |
75 | } |
76 | |
77 | void Mapper208_Init(CartInfo *info) |
78 | { |
e2d0dd92 |
79 | GenMMC3_Init(info, 128, 256, 0, 0); |
80 | pwrap=M208PW; |
81 | info->Power=M208Power; |
82 | AddExState(EXPREGS, 6, 0, "EXPR"); |
d97315ac |
83 | } |