nkeynes@31 | 1 | /**
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nkeynes@586 | 2 | * $Id$
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nkeynes@31 | 3 | *
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nkeynes@31 | 4 | * mem is responsible for creating and maintaining the overall system memory
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nkeynes@31 | 5 | * map, as visible from the SH4 processor. (Note the ARM has a different map)
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nkeynes@31 | 6 | *
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nkeynes@31 | 7 | * Copyright (c) 2005 Nathan Keynes.
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nkeynes@31 | 8 | *
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nkeynes@31 | 9 | * This program is free software; you can redistribute it and/or modify
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nkeynes@31 | 10 | * it under the terms of the GNU General Public License as published by
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nkeynes@31 | 11 | * the Free Software Foundation; either version 2 of the License, or
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nkeynes@31 | 12 | * (at your option) any later version.
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nkeynes@31 | 13 | *
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nkeynes@31 | 14 | * This program is distributed in the hope that it will be useful,
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nkeynes@31 | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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nkeynes@31 | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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nkeynes@31 | 17 | * GNU General Public License for more details.
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nkeynes@31 | 18 | */
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nkeynes@31 | 19 |
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nkeynes@31 | 20 | #ifndef dream_mem_H
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nkeynes@31 | 21 | #define dream_mem_H
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nkeynes@10 | 22 |
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nkeynes@10 | 23 | #include <stdint.h>
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nkeynes@477 | 24 | #include "lxdream.h"
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nkeynes@10 | 25 |
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nkeynes@10 | 26 | #ifdef __cplusplus
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nkeynes@10 | 27 | extern "C" {
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nkeynes@10 | 28 | #endif
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nkeynes@10 | 29 |
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nkeynes@10 | 30 | typedef struct mem_region {
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nkeynes@10 | 31 | uint32_t base;
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nkeynes@10 | 32 | uint32_t size;
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nkeynes@422 | 33 | const char *name;
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nkeynes@502 | 34 | sh4ptr_t mem;
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nkeynes@510 | 35 | uint32_t flags;
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nkeynes@10 | 36 | } *mem_region_t;
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nkeynes@10 | 37 |
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nkeynes@10 | 38 | #define MAX_IO_REGIONS 24
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nkeynes@10 | 39 | #define MAX_MEM_REGIONS 8
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nkeynes@10 | 40 |
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nkeynes@180 | 41 | #define MEM_REGION_BIOS "Bios ROM"
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nkeynes@10 | 42 | #define MEM_REGION_MAIN "System RAM"
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nkeynes@10 | 43 | #define MEM_REGION_VIDEO "Video RAM"
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nkeynes@10 | 44 | #define MEM_REGION_AUDIO "Audio RAM"
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nkeynes@10 | 45 | #define MEM_REGION_AUDIO_SCRATCH "Audio Scratch RAM"
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nkeynes@146 | 46 | #define MEM_REGION_FLASH "System Flash"
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nkeynes@10 | 47 |
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nkeynes@422 | 48 | void *mem_create_ram_region( uint32_t base, uint32_t size, const char *name );
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nkeynes@422 | 49 | void *mem_create_repeating_ram_region( uint32_t base, uint32_t size, const char *name,
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nkeynes@146 | 50 | uint32_t repeat_offset, uint32_t last_repeat );
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nkeynes@543 | 51 | /**
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nkeynes@543 | 52 | * Load a ROM image from the specified filename. If the memory region has not
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nkeynes@543 | 53 | * been allocated, it is created now, otherwise the existing region is reused.
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nkeynes@543 | 54 | * If the CRC check fails, a warning will be printed.
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nkeynes@543 | 55 | * @return TRUE if the image was loaded successfully (irrespective of CRC failure).
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nkeynes@543 | 56 | */
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nkeynes@543 | 57 | gboolean mem_load_rom( const gchar *filename, uint32_t base, uint32_t size,
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nkeynes@543 | 58 | uint32_t crc, const gchar *region_name );
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nkeynes@19 | 59 | void *mem_alloc_pages( int n );
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nkeynes@502 | 60 | sh4ptr_t mem_get_region( uint32_t addr );
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nkeynes@502 | 61 | sh4ptr_t mem_get_region_by_name( const char *name );
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nkeynes@10 | 62 | int mem_has_page( uint32_t addr );
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nkeynes@502 | 63 | sh4ptr_t mem_get_page( uint32_t addr );
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nkeynes@146 | 64 | int mem_load_block( const gchar *filename, uint32_t base, uint32_t size );
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nkeynes@146 | 65 | int mem_save_block( const gchar *filename, uint32_t base, uint32_t size );
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nkeynes@586 | 66 | void mem_set_trace( const gchar *tracelist, int flag );
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nkeynes@10 | 67 | void mem_init( void );
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nkeynes@10 | 68 | void mem_reset( void );
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nkeynes@502 | 69 | void mem_copy_from_sh4( sh4ptr_t dest, sh4addr_t src, size_t count );
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nkeynes@502 | 70 | void mem_copy_to_sh4( sh4addr_t dest, sh4ptr_t src, size_t count );
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nkeynes@10 | 71 |
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nkeynes@43 | 72 | #define ENABLE_DEBUG_MODE 1
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nkeynes@43 | 73 |
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nkeynes@586 | 74 | typedef enum { BREAK_NONE=0, BREAK_ONESHOT=1, BREAK_KEEP=2 } breakpoint_type_t;
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nkeynes@586 | 75 |
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nkeynes@43 | 76 | struct breakpoint_struct {
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nkeynes@43 | 77 | uint32_t address;
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nkeynes@586 | 78 | breakpoint_type_t type;
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nkeynes@43 | 79 | };
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nkeynes@43 | 80 |
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nkeynes@43 | 81 | #define MAX_BREAKPOINTS 32
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nkeynes@43 | 82 |
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nkeynes@586 | 83 |
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nkeynes@586 | 84 | #define MEM_FLAG_ROM 4 /* Mem region is ROM-based */
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nkeynes@586 | 85 | #define MEM_FLAG_RAM 6
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nkeynes@10 | 86 |
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nkeynes@10 | 87 | #define WATCH_WRITE 1
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nkeynes@10 | 88 | #define WATCH_READ 2
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nkeynes@10 | 89 | #define WATCH_EXEC 3 /* AKA Breakpoint :) */
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nkeynes@10 | 90 |
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nkeynes@10 | 91 | typedef struct watch_point *watch_point_t;
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nkeynes@10 | 92 |
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nkeynes@10 | 93 | watch_point_t mem_new_watch( uint32_t start, uint32_t end, int flags );
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nkeynes@10 | 94 | void mem_delete_watch( watch_point_t watch );
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nkeynes@10 | 95 | watch_point_t mem_is_watched( uint32_t addr, int size, int op );
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nkeynes@10 | 96 |
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nkeynes@502 | 97 | extern sh4ptr_t *page_map;
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nkeynes@10 | 98 | #ifdef __cplusplus
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nkeynes@10 | 99 | }
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nkeynes@10 | 100 | #endif
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nkeynes@10 | 101 | #endif
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