-
Notifications
You must be signed in to change notification settings - Fork 2
/
memorymap.h
93 lines (81 loc) · 3.31 KB
/
memorymap.h
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
/*
¬°¤*,¸¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸
¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯
__/¯\____ ___/\__ _/\__ _/\_ _/\__ _/\___ ___/\__ __/\_ _/\__
\_ ____/_> ____ \_/ _ \_ \ < /_ \_/ _>> ____ \_ > \_/ _ \_
_> ___/ ¯>__> <<__// __ _/ |> ></ _/> </ ¯ \\__> <<__// /\ // __ _/
_> \7 <__/:. \__/:. \> \_/ L/ _____/. 7> .\_/:. \__/ <_/ </:. \> \_
|:::::::::::::::::::::::/:::::::::::::>::::::::/::::::::::::::::::::::::/:::::|
|¯¯\::::/\:/¯\::::/¯¯¯¯<::::/\::/¯¯\:/¯¯¯¯¯¯\::\::/¯¯\::::/¯¯\::::/¯¯¯¯<::::/¯|
|__ |¯¯| T _ |¯¯¯| ___ |¯¯| |¯| _ T ______ |¯¯¯¯| _ |¯¯¯| _ |¯¯¯| ___ |¯¯| _|
\|__|/\|/ \|___|/ \|__|/\|_|/ \|/ \| |/ \|___|/ \|___|/dNo\|__|/
¬°¤*,¸¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸
¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯
This file is part of Etripator,
copyright (c) 2009--2023 Vincent Cruz.
Etripator 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.
Etripator 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 Etripator. If not, see <http://www.gnu.org/licenses/>.
¬°¤*,¸¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸
¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯¬°¤*,¸_¸,*¤°¬°¤*,¸,*¤°¬¯
*/
#ifndef ETRIPATOR_MEMORY_MAP_H
#define ETRIPATOR_MEMORY_MAP_H
#include "memory.h"
/**
* PC Engine memory
*/
enum {
PCE_MEM_ROM = 0,
PCE_MEM_BASE_RAM,
PCE_MEM_CD_RAM,
PCE_MEM_SYSCARD_RAM,
PCE_MEM_COUNT
};
/**
* PC Engine memory map.
*/
typedef struct {
mem_t mem[PCE_MEM_COUNT];
uint8_t *page[0x100];
uint8_t mpr[8];
} memmap_t;
/**
* Initializes memory map.
* \param map Memory map.
* \return 1 upon success, 0 if an error occured.
*/
int memmap_init(memmap_t *map);
/**
* Releases resources used by the memory map.
* \param map Memory map.
*/
void memmap_destroy(memmap_t *map);
/**
* Get the memory page associated to a logical address.
* \param map Memory map.
* \param logical Logical address.
* \return Memory page.
*/
uint8_t memmap_page(memmap_t* map, uint16_t logical);
/**
* Reads a single byte from memory.
* \param [in] map Memory map.
* \param [in] logical Logical address.
* \return Byte read.
*/
uint8_t memmap_read(memmap_t *map, size_t logical);
/**
* Update mprs.
* \param [in][out] map Memory map.
* \param [in] mpr Memory page registers.
*/
void memmap_mpr(memmap_t *map, const uint8_t *mpr);
#endif // ETRIPATOR_MEMORY_MAP_H