1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/*
Copyright 2016-2021 Arisotura, Raphaël Zumer
This file is part of melonDS.
melonDS is free software: you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
melonDS is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with melonDS. If not, see http://www.gnu.org/licenses/.
*/
#ifndef GBACART_H
#define GBACART_H
#include "types.h"
#include "Savestate.h"
namespace GBACart
{
// CartCommon -- base code shared by all cart types
class CartCommon
{
public:
CartCommon();
virtual ~CartCommon();
virtual void DoSavestate(Savestate* file);
virtual void LoadSave(const char* path, u32 type);
virtual void RelocateSave(const char* path, bool write);
virtual int SetInput(int num, bool pressed);
virtual u16 ROMRead(u32 addr);
virtual void ROMWrite(u32 addr, u16 val);
virtual u8 SRAMRead(u32 addr);
virtual void SRAMWrite(u32 addr, u8 val);
};
// CartGame -- regular retail game cart (ROM, SRAM)
class CartGame : public CartCommon
{
public:
CartGame(u8* rom, u32 len);
virtual ~CartGame() override;
virtual void DoSavestate(Savestate* file) override;
virtual void LoadSave(const char* path, u32 type) override;
virtual void RelocateSave(const char* path, bool write) override;
virtual u16 ROMRead(u32 addr) override;
virtual void ROMWrite(u32 addr, u16 val) override;
virtual u8 SRAMRead(u32 addr) override;
virtual void SRAMWrite(u32 addr, u8 val) override;
protected:
virtual void ProcessGPIO();
u8 SRAMRead_EEPROM(u32 addr);
void SRAMWrite_EEPROM(u32 addr, u8 val);
u8 SRAMRead_FLASH(u32 addr);
void SRAMWrite_FLASH(u32 addr, u8 val);
u8 SRAMRead_SRAM(u32 addr);
void SRAMWrite_SRAM(u32 addr, u8 val);
u8* ROM;
u32 ROMLength;
struct
{
u16 data;
u16 direction;
u16 control;
} GPIO;
enum SaveType
{
S_NULL,
S_EEPROM4K,
S_EEPROM64K,
S_SRAM256K,
S_FLASH512K,
S_FLASH1M
};
// from DeSmuME
struct
{
u8 state;
u8 cmd;
u8 device;
u8 manufacturer;
u8 bank;
} SRAMFlashState;
u8* SRAM;
FILE* SRAMFile;
u32 SRAMLength;
SaveType SRAMType;
char SRAMPath[1024];
};
// CartGameSolarSensor -- Boktai game cart
class CartGameSolarSensor : public CartGame
{
public:
CartGameSolarSensor(u8* rom, u32 len);
virtual ~CartGameSolarSensor() override;
virtual void DoSavestate(Savestate* file) override;
virtual int SetInput(int num, bool pressed) override;
private:
virtual void ProcessGPIO() override;
static const int kLuxLevels[11];
bool LightEdge;
u8 LightCounter;
u8 LightSample;
u8 LightLevel;
};
// possible inputs for GBA carts that might accept user input
enum
{
Input_SolarSensorDown = 0,
Input_SolarSensorUp,
};
extern bool CartInserted;
extern u8* CartROM;
extern u32 CartROMSize;
extern u32 CartCRC;
bool Init();
void DeInit();
void Reset();
void Eject();
void DoSavestate(Savestate* file);
bool LoadROM(const char* path, const char* sram);
bool LoadROM(const u8* romdata, u32 filelength, const char *sram);
void RelocateSave(const char* path, bool write);
// TODO: make more flexible, support nonbinary inputs
int SetInput(int num, bool pressed);
u16 ROMRead(u32 addr);
void ROMWrite(u32 addr, u16 val);
u8 SRAMRead(u32 addr);
void SRAMWrite(u32 addr, u8 val);
}
#endif // GBACART_H
|