lxdream 0.9.1| filename | src/mem.h |
| changeset | 101:5a22f3699b67 |
| prev | 43:0cf3e339cc59 |
| next | 146:f91fa34ab219 |
| author | nkeynes |
| date | Tue Mar 14 11:44:04 2006 +0000 (18 years ago) |
| permissions | -rw-r--r-- |
| last change | Remove call-slot-delay on syscall ensure dreamcast_stop on error conditions for the time being |
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1 /**
2 * $Id: mem.h,v 1.7 2006-03-13 12:37:06 nkeynes Exp $
3 *
4 * mem is responsible for creating and maintaining the overall system memory
5 * map, as visible from the SH4 processor. (Note the ARM has a different map)
6 *
7 * Copyright (c) 2005 Nathan Keynes.
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 */
20 #ifndef dream_mem_H
21 #define dream_mem_H
23 #include <stdint.h>
25 #ifdef __cplusplus
26 extern "C" {
27 #endif
29 typedef struct mem_region {
30 uint32_t base;
31 uint32_t size;
32 char *name;
33 char *mem;
34 int flags;
35 } *mem_region_t;
37 #define MAX_IO_REGIONS 24
38 #define MAX_MEM_REGIONS 8
40 #define MEM_REGION_MAIN "System RAM"
41 #define MEM_REGION_VIDEO "Video RAM"
42 #define MEM_REGION_AUDIO "Audio RAM"
43 #define MEM_REGION_AUDIO_SCRATCH "Audio Scratch RAM"
45 #define MB * (1024 * 1024)
46 #define KB * 1024
48 void *mem_create_ram_region( uint32_t base, uint32_t size, char *name );
49 void *mem_load_rom( char *name, uint32_t base, uint32_t size, uint32_t crc );
50 void *mem_alloc_pages( int n );
51 char *mem_get_region( uint32_t addr );
52 char *mem_get_region_by_name( char *name );
53 int mem_has_page( uint32_t addr );
54 char *mem_get_page( uint32_t addr );
56 void mem_init( void );
57 void mem_reset( void );
59 #define ENABLE_DEBUG_MODE 1
61 struct breakpoint_struct {
62 uint32_t address;
63 int type;
64 };
66 #define MAX_BREAKPOINTS 32
67 #define BREAK_NONE 0
68 #define BREAK_ONESHOT 1
69 #define BREAK_KEEP 2
71 #define ENABLE_WATCH 1
73 #define WATCH_WRITE 1
74 #define WATCH_READ 2
75 #define WATCH_EXEC 3 /* AKA Breakpoint :) */
77 #define MEM_FLAG_ROM 4 /* Mem region is ROM-based */
78 #define MEM_FLAG_RAM 6
80 typedef struct watch_point *watch_point_t;
82 watch_point_t mem_new_watch( uint32_t start, uint32_t end, int flags );
83 void mem_delete_watch( watch_point_t watch );
84 watch_point_t mem_is_watched( uint32_t addr, int size, int op );
86 typedef uint32_t sh4addr_t;
88 extern char **page_map;
89 #ifdef __cplusplus
90 }
91 #endif
92 #endif
.