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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 | #define CHRRAM (GameMemBlock) |
24 | static uint8 latche; |
25 | |
26 | DECLFW(CPROMWrite) |
27 | { |
28 | latche=V&3; |
29 | setvram4(0x1000,CHRRAM+((V&3)<<12)); |
30 | } |
31 | |
32 | static void CPROMReset(void) |
33 | { |
34 | setprg32(0x8000,0); |
35 | setvram8(0); |
36 | SetReadHandler(0x8000,0xFFFF,CartBR); |
37 | SetWriteHandler(0x8000,0xffff,CPROMWrite); |
38 | } |
39 | |
40 | static void CPROMRestore(int version) |
41 | { |
42 | setvram4(0x1000,CHRRAM+((latche)<<12)); |
43 | } |
44 | |
45 | void CPROM_Init(void) |
46 | { |
47 | BoardPower=CPROMReset; |
48 | GameStateRestore=CPROMRestore; |
49 | AddExState(&latche, 1, 0, "LATC"); |
50 | } |
51 | |
52 | DECLFW(CNROMWrite) |
53 | { |
54 | latche=V&3; |
55 | setchr8(V&3); |
56 | } |
57 | |
58 | static void CNROMReset(void) |
59 | { |
60 | setprg16(0x8000,0); |
61 | setprg16(0xC000,1); |
62 | SetReadHandler(0x8000,0xFFFF,CartBR); |
63 | SetWriteHandler(0x8000,0xffff,CNROMWrite); |
64 | } |
65 | |
66 | static void CNROMRestore(int version) |
67 | { |
68 | setchr8(latche); |
69 | } |
70 | |
71 | void CNROM_Init(void) |
72 | { |
73 | BoardPower=CNROMReset; |
74 | GameStateRestore=CNROMRestore; |
75 | AddExState(&latche, 1, 0, "LATC"); |
76 | } |
77 | |
78 | static void NROM128Reset(void) |
79 | { |
80 | setprg16(0x8000,0); |
81 | setprg16(0xC000,0); |
82 | setchr8(0); |
83 | SetReadHandler(0x8000,0xFFFF,CartBR); |
84 | } |
85 | |
86 | static void NROM256Reset(void) |
87 | { |
88 | setprg16(0x8000,0); |
89 | setprg16(0xC000,1); |
90 | setchr8(0); |
91 | SetReadHandler(0x8000,0xFFFF,CartBR); |
92 | } |
93 | void NROM128_Init(void) |
94 | { |
95 | BoardPower=NROM128Reset; |
96 | } |
97 | |
98 | void NROM256_Init(void) |
99 | { |
100 | BoardPower=NROM256Reset; |
101 | } |
102 | |
103 | static DECLFW(MHROMWrite) |
104 | { |
105 | setprg32(0x8000,V>>4); |
106 | setchr8(V); |
107 | latche=V; |
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108 | X6502_Rebase(); |
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109 | } |
110 | |
111 | static void MHROMReset(void) |
112 | { |
113 | setprg32(0x8000,0); |
114 | setchr8(0); |
115 | latche=0; |
116 | SetReadHandler(0x8000,0xFFFF,CartBR); |
117 | } |
118 | |
119 | static void MHROMRestore(int version) |
120 | { |
121 | setprg32(0x8000,latche); |
122 | setchr8(latche); |
123 | SetWriteHandler(0x8000,0xffff,MHROMWrite); |
124 | } |
125 | |
126 | void MHROM_Init(void) |
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127 | { |
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128 | BoardPower=MHROMReset; |
129 | AddExState(&latche, 1, 0,"LATC"); |
130 | PRGmask32[0]&=1; |
131 | CHRmask8[0]&=1; |
132 | GameStateRestore=MHROMRestore; |
133 | } |
134 | |
135 | static void UNROMRestore(int version) |
136 | { |
137 | setprg16(0x8000,latche); |
138 | } |
139 | |
140 | static DECLFW(UNROMWrite) |
141 | { |
142 | setprg16(0x8000,V); |
143 | latche=V; |
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144 | X6502_Rebase(); |
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145 | } |
146 | |
147 | static void UNROMReset(void) |
148 | { |
149 | setprg16(0x8000,0); |
150 | setprg16(0xc000,~0); |
151 | setvram8(CHRRAM); |
152 | SetWriteHandler(0x8000,0xffff,UNROMWrite); |
153 | SetReadHandler(0x8000,0xFFFF,CartBR); |
154 | latche=0; |
155 | } |
156 | |
157 | void UNROM_Init(void) |
158 | { |
159 | BoardPower=UNROMReset; |
160 | PRGmask16[0]&=7; |
161 | AddExState(&latche, 1, 0, "LATC"); |
162 | AddExState(CHRRAM, 8192, 0, "CHRR"); |
163 | GameStateRestore=UNROMRestore; |
164 | } |