lxdream 0.9.1| filename | src/mem.h |
| changeset | 669:ab344e42bca9 |
| prev | 586:2a3ba82cf243 |
| next | 736:a02d1475ccfd |
| author | nkeynes |
| date | Sun Jun 22 06:49:00 2008 +0000 (15 years ago) |
| permissions | -rw-r--r-- |
| last change | Big cleanup of the command-line options Add an actual manpage (*gasp*) |
| view | annotate | diff | log | raw |
1 /**
2 * $Id$
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>
24 #include "lxdream.h"
26 #ifdef __cplusplus
27 extern "C" {
28 #endif
30 typedef struct mem_region {
31 uint32_t base;
32 uint32_t size;
33 const char *name;
34 sh4ptr_t mem;
35 uint32_t flags;
36 } *mem_region_t;
38 #define MAX_IO_REGIONS 24
39 #define MAX_MEM_REGIONS 8
41 #define MEM_REGION_BIOS "Bios ROM"
42 #define MEM_REGION_MAIN "System RAM"
43 #define MEM_REGION_VIDEO "Video RAM"
44 #define MEM_REGION_AUDIO "Audio RAM"
45 #define MEM_REGION_AUDIO_SCRATCH "Audio Scratch RAM"
46 #define MEM_REGION_FLASH "System Flash"
48 void *mem_create_ram_region( uint32_t base, uint32_t size, const char *name );
49 void *mem_create_repeating_ram_region( uint32_t base, uint32_t size, const char *name,
50 uint32_t repeat_offset, uint32_t last_repeat );
51 /**
52 * Load a ROM image from the specified filename. If the memory region has not
53 * been allocated, it is created now, otherwise the existing region is reused.
54 * If the CRC check fails, a warning will be printed.
55 * @return TRUE if the image was loaded successfully (irrespective of CRC failure).
56 */
57 gboolean mem_load_rom( const gchar *filename, uint32_t base, uint32_t size,
58 uint32_t crc, const gchar *region_name );
59 void *mem_alloc_pages( int n );
60 sh4ptr_t mem_get_region( uint32_t addr );
61 sh4ptr_t mem_get_region_by_name( const char *name );
62 int mem_has_page( uint32_t addr );
63 sh4ptr_t mem_get_page( uint32_t addr );
64 int mem_load_block( const gchar *filename, uint32_t base, uint32_t size );
65 int mem_save_block( const gchar *filename, uint32_t base, uint32_t size );
66 void mem_set_trace( const gchar *tracelist, int flag );
67 void mem_init( void );
68 void mem_reset( void );
69 void mem_copy_from_sh4( sh4ptr_t dest, sh4addr_t src, size_t count );
70 void mem_copy_to_sh4( sh4addr_t dest, sh4ptr_t src, size_t count );
72 /**
73 * Write a long value directly to SH4-addressable memory.
74 * @param dest a valid, writable physical memory address, relative to the SH4
75 * @param value the value to write.
76 */
77 void mem_write_long( sh4addr_t dest, uint32_t value );
79 #define ENABLE_DEBUG_MODE 1
81 typedef enum { BREAK_NONE=0, BREAK_ONESHOT=1, BREAK_KEEP=2 } breakpoint_type_t;
83 struct breakpoint_struct {
84 uint32_t address;
85 breakpoint_type_t type;
86 };
88 #define MAX_BREAKPOINTS 32
91 #define MEM_FLAG_ROM 4 /* Mem region is ROM-based */
92 #define MEM_FLAG_RAM 6
94 #define WATCH_WRITE 1
95 #define WATCH_READ 2
96 #define WATCH_EXEC 3 /* AKA Breakpoint :) */
98 typedef struct watch_point *watch_point_t;
100 watch_point_t mem_new_watch( uint32_t start, uint32_t end, int flags );
101 void mem_delete_watch( watch_point_t watch );
102 watch_point_t mem_is_watched( uint32_t addr, int size, int op );
104 extern sh4ptr_t *page_map;
105 #ifdef __cplusplus
106 }
107 #endif
108 #endif
.