2 * $Id: mem.h,v 1.6 2005-12-26 11:47:12 nkeynes Exp $
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)
7 * Copyright (c) 2005 Nathan Keynes.
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.
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.
29 typedef struct mem_region {
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)
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 {
66 #define MAX_BREAKPOINTS 32
68 #define BREAK_ONESHOT 1
71 #define ENABLE_WATCH 1
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 extern char **page_map;
.