1 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
2  *   Mupen64plus - sram.h                                                  *
3  *   Mupen64Plus homepage: http://code.google.com/p/mupen64plus/           *
4  *   Copyright (C) 2014 Bobby Smiles                                       *
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                         *
18  *   Free Software Foundation, Inc.,                                       *
19  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.          *
20  * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
21 
22 #ifndef M64P_PI_SRAM_H
23 #define M64P_PI_SRAM_H
24 
25 #include <stdint.h>
26 
27 struct pi_controller;
28 
29 enum { SRAM_SIZE = 0x8000 };
30 
31 struct sram
32 {
33    /* external sram storage */
34    void* user_data;
35    void (*save)(void*);
36    uint8_t* data;
37 };
38 
39 void init_sram(struct sram* sram, void* user_data, void (*save)(void*), uint8_t* data);
40 
41 void sram_save(struct sram* sram);
42 
43 void format_sram(uint8_t* sram);
44 
45 void dma_write_sram(struct pi_controller* pi);
46 void dma_read_sram(struct pi_controller* pi);
47 
48 #endif
49