nkeynes@31: /**
nkeynes@43:  * $Id: mem.h,v 1.6 2005-12-26 11:47:12 nkeynes Exp $
nkeynes@31:  *
nkeynes@31:  * mem is responsible for creating and maintaining the overall system memory
nkeynes@31:  * map, as visible from the SH4 processor. (Note the ARM has a different map)
nkeynes@31:  *
nkeynes@31:  * Copyright (c) 2005 Nathan Keynes.
nkeynes@31:  *
nkeynes@31:  * This program is free software; you can redistribute it and/or modify
nkeynes@31:  * it under the terms of the GNU General Public License as published by
nkeynes@31:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@31:  * (at your option) any later version.
nkeynes@31:  *
nkeynes@31:  * This program is distributed in the hope that it will be useful,
nkeynes@31:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@31:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@31:  * GNU General Public License for more details.
nkeynes@31:  */
nkeynes@31: 
nkeynes@31: #ifndef dream_mem_H
nkeynes@31: #define dream_mem_H
nkeynes@10: 
nkeynes@10: #include <stdint.h>
nkeynes@10: 
nkeynes@10: #ifdef __cplusplus
nkeynes@10: extern "C" {
nkeynes@10: #endif
nkeynes@10: 
nkeynes@10: typedef struct mem_region {
nkeynes@10:     uint32_t base;
nkeynes@10:     uint32_t size;
nkeynes@10:     char *name;
nkeynes@10:     char *mem;
nkeynes@10:     int flags;
nkeynes@10: } *mem_region_t;
nkeynes@10: 
nkeynes@10: #define MAX_IO_REGIONS 24
nkeynes@10: #define MAX_MEM_REGIONS 8
nkeynes@10: 
nkeynes@10: #define MEM_REGION_MAIN "System RAM"
nkeynes@10: #define MEM_REGION_VIDEO "Video RAM"
nkeynes@10: #define MEM_REGION_AUDIO "Audio RAM"
nkeynes@10: #define MEM_REGION_AUDIO_SCRATCH "Audio Scratch RAM"
nkeynes@10: 
nkeynes@10: #define MB * (1024 * 1024)
nkeynes@10: #define KB * 1024
nkeynes@10: 
nkeynes@10: void *mem_create_ram_region( uint32_t base, uint32_t size, char *name );
nkeynes@10: void *mem_load_rom( char *name, uint32_t base, uint32_t size, uint32_t crc );
nkeynes@19: void *mem_alloc_pages( int n );
nkeynes@10: char *mem_get_region( uint32_t addr );
nkeynes@10: char *mem_get_region_by_name( char *name );
nkeynes@10: int mem_has_page( uint32_t addr );
nkeynes@10: char *mem_get_page( uint32_t addr );
nkeynes@10: 
nkeynes@10: void mem_init( void );
nkeynes@10: void mem_reset( void );
nkeynes@10: 
nkeynes@43: #define ENABLE_DEBUG_MODE 1
nkeynes@43: 
nkeynes@43: struct breakpoint_struct {
nkeynes@43:     uint32_t address;
nkeynes@43:     int type;
nkeynes@43: };
nkeynes@43: 
nkeynes@43: #define MAX_BREAKPOINTS 32
nkeynes@43: #define BREAK_NONE 0
nkeynes@43: #define BREAK_ONESHOT 1
nkeynes@43: #define BREAK_KEEP 2
nkeynes@43: 
nkeynes@10: #define ENABLE_WATCH 1
nkeynes@10: 
nkeynes@10: #define WATCH_WRITE 1
nkeynes@10: #define WATCH_READ  2
nkeynes@10: #define WATCH_EXEC  3  /* AKA Breakpoint :) */
nkeynes@10: 
nkeynes@18: #define MEM_FLAG_ROM 4 /* Mem region is ROM-based */
nkeynes@18: #define MEM_FLAG_RAM 6 
nkeynes@18: 
nkeynes@10: typedef struct watch_point *watch_point_t;
nkeynes@10: 
nkeynes@10: watch_point_t mem_new_watch( uint32_t start, uint32_t end, int flags );
nkeynes@10: void mem_delete_watch( watch_point_t watch );
nkeynes@10: watch_point_t mem_is_watched( uint32_t addr, int size, int op );
nkeynes@10: 
nkeynes@10: extern char **page_map;
nkeynes@10: #ifdef __cplusplus
nkeynes@10: }
nkeynes@10: #endif
nkeynes@10: #endif