nkeynes@31 | 1 | /**
|
nkeynes@586 | 2 | * $Id$
|
nkeynes@31 | 3 | *
|
nkeynes@31 | 4 | * mem is responsible for creating and maintaining the overall system memory
|
nkeynes@31 | 5 | * map, as visible from the SH4 processor. (Note the ARM has a different map)
|
nkeynes@31 | 6 | *
|
nkeynes@31 | 7 | * Copyright (c) 2005 Nathan Keynes.
|
nkeynes@31 | 8 | *
|
nkeynes@31 | 9 | * This program is free software; you can redistribute it and/or modify
|
nkeynes@31 | 10 | * it under the terms of the GNU General Public License as published by
|
nkeynes@31 | 11 | * the Free Software Foundation; either version 2 of the License, or
|
nkeynes@31 | 12 | * (at your option) any later version.
|
nkeynes@31 | 13 | *
|
nkeynes@31 | 14 | * This program is distributed in the hope that it will be useful,
|
nkeynes@31 | 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
nkeynes@31 | 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
nkeynes@31 | 17 | * GNU General Public License for more details.
|
nkeynes@31 | 18 | */
|
nkeynes@31 | 19 |
|
nkeynes@736 | 20 | #ifndef lxdream_mem_H
|
nkeynes@736 | 21 | #define lxdream_mem_H 1
|
nkeynes@10 | 22 |
|
nkeynes@10 | 23 | #include <stdint.h>
|
nkeynes@477 | 24 | #include "lxdream.h"
|
nkeynes@931 | 25 | #include "hook.h"
|
nkeynes@10 | 26 |
|
nkeynes@10 | 27 | #ifdef __cplusplus
|
nkeynes@10 | 28 | extern "C" {
|
nkeynes@10 | 29 | #endif
|
nkeynes@10 | 30 |
|
nkeynes@939 | 31 |
|
nkeynes@939 | 32 | typedef FASTCALL int32_t (*mem_read_fn_t)(sh4addr_t);
|
nkeynes@939 | 33 | typedef FASTCALL void (*mem_write_fn_t)(sh4addr_t, uint32_t);
|
nkeynes@939 | 34 | typedef FASTCALL void (*mem_read_burst_fn_t)(unsigned char *,sh4addr_t);
|
nkeynes@939 | 35 | typedef FASTCALL void (*mem_write_burst_fn_t)(sh4addr_t,unsigned char *);
|
nkeynes@939 | 36 |
|
nkeynes@939 | 37 | typedef FASTCALL int32_t (*mem_read_exc_fn_t)(sh4addr_t, void *);
|
nkeynes@939 | 38 | typedef FASTCALL void (*mem_write_exc_fn_t)(sh4addr_t, uint32_t, void *);
|
nkeynes@939 | 39 | typedef FASTCALL void (*mem_read_burst_exc_fn_t)(unsigned char *,sh4addr_t, void *);
|
nkeynes@939 | 40 | typedef FASTCALL void (*mem_write_burst_exc_fn_t)(sh4addr_t,unsigned char *, void *);
|
nkeynes@939 | 41 |
|
nkeynes@931 | 42 | /**
|
nkeynes@931 | 43 | * Basic memory region vtable - read/write at byte, word, long, and burst
|
nkeynes@931 | 44 | * (32-byte) sizes.
|
nkeynes@931 | 45 | */
|
nkeynes@929 | 46 | typedef struct mem_region_fn {
|
nkeynes@929 | 47 | FASTCALL int32_t (*read_long)(sh4addr_t addr);
|
nkeynes@929 | 48 | FASTCALL void (*write_long)(sh4addr_t addr, uint32_t val);
|
nkeynes@929 | 49 | FASTCALL int32_t (*read_word)(sh4addr_t addr);
|
nkeynes@929 | 50 | FASTCALL void (*write_word)(sh4addr_t addr, uint32_t val);
|
nkeynes@929 | 51 | FASTCALL int32_t (*read_byte)(sh4addr_t addr);
|
nkeynes@929 | 52 | FASTCALL void (*write_byte)(sh4addr_t addr, uint32_t val);
|
nkeynes@929 | 53 | FASTCALL void (*read_burst)(unsigned char *dest, sh4addr_t addr);
|
nkeynes@929 | 54 | FASTCALL void (*write_burst)(sh4addr_t addr, unsigned char *src);
|
nkeynes@929 | 55 | } *mem_region_fn_t;
|
nkeynes@931 | 56 |
|
nkeynes@931 | 57 | int32_t FASTCALL unmapped_read_long( sh4addr_t addr );
|
nkeynes@931 | 58 | void FASTCALL unmapped_write_long( sh4addr_t addr, uint32_t val );
|
nkeynes@931 | 59 | void FASTCALL unmapped_read_burst( unsigned char *dest, sh4addr_t addr );
|
nkeynes@931 | 60 | void FASTCALL unmapped_write_burst( sh4addr_t addr, unsigned char *src );
|
nkeynes@931 | 61 | extern struct mem_region_fn mem_region_unmapped;
|
nkeynes@931 | 62 |
|
nkeynes@10 | 63 | typedef struct mem_region {
|
nkeynes@10 | 64 | uint32_t base;
|
nkeynes@10 | 65 | uint32_t size;
|
nkeynes@422 | 66 | const char *name;
|
nkeynes@502 | 67 | sh4ptr_t mem;
|
nkeynes@510 | 68 | uint32_t flags;
|
nkeynes@929 | 69 | mem_region_fn_t fn;
|
nkeynes@10 | 70 | } *mem_region_t;
|
nkeynes@10 | 71 |
|
nkeynes@10 | 72 | #define MAX_IO_REGIONS 24
|
nkeynes@931 | 73 | #define MAX_MEM_REGIONS 16
|
nkeynes@10 | 74 |
|
nkeynes@180 | 75 | #define MEM_REGION_BIOS "Bios ROM"
|
nkeynes@10 | 76 | #define MEM_REGION_MAIN "System RAM"
|
nkeynes@10 | 77 | #define MEM_REGION_VIDEO "Video RAM"
|
nkeynes@931 | 78 | #define MEM_REGION_VIDEO64 "Video RAM 64-bit"
|
nkeynes@10 | 79 | #define MEM_REGION_AUDIO "Audio RAM"
|
nkeynes@10 | 80 | #define MEM_REGION_AUDIO_SCRATCH "Audio Scratch RAM"
|
nkeynes@146 | 81 | #define MEM_REGION_FLASH "System Flash"
|
nkeynes@934 | 82 | #define MEM_REGION_PVR2TA "PVR2 TA Command"
|
nkeynes@934 | 83 | #define MEM_REGION_PVR2YUV "PVR2 YUV Decode"
|
nkeynes@934 | 84 | #define MEM_REGION_PVR2VDMA1 "PVR2 VRAM DMA 1"
|
nkeynes@934 | 85 | #define MEM_REGION_PVR2VDMA2 "PVR2 VRAM DMA 2"
|
nkeynes@10 | 86 |
|
nkeynes@931 | 87 | typedef gboolean (*mem_page_remapped_hook_t)(sh4addr_t page, mem_region_fn_t newfn, void *user_data);
|
nkeynes@931 | 88 | DECLARE_HOOK( mem_page_remapped_hook, mem_page_remapped_hook_t );
|
nkeynes@931 | 89 |
|
nkeynes@934 | 90 | struct mem_region *mem_map_region( void *mem, uint32_t base, uint32_t size,
|
nkeynes@934 | 91 | const char *name, mem_region_fn_t fn, int flags, uint32_t repeat_offset,
|
nkeynes@934 | 92 | uint32_t repeat_until );
|
nkeynes@931 | 93 |
|
nkeynes@543 | 94 | /**
|
nkeynes@543 | 95 | * Load a ROM image from the specified filename. If the memory region has not
|
nkeynes@543 | 96 | * been allocated, it is created now, otherwise the existing region is reused.
|
nkeynes@543 | 97 | * If the CRC check fails, a warning will be printed.
|
nkeynes@543 | 98 | * @return TRUE if the image was loaded successfully (irrespective of CRC failure).
|
nkeynes@543 | 99 | */
|
nkeynes@934 | 100 | gboolean mem_load_rom( void *output, const gchar *filename, uint32_t size, uint32_t crc );
|
nkeynes@19 | 101 | void *mem_alloc_pages( int n );
|
nkeynes@502 | 102 | sh4ptr_t mem_get_region( uint32_t addr );
|
nkeynes@502 | 103 | sh4ptr_t mem_get_region_by_name( const char *name );
|
nkeynes@934 | 104 | gboolean mem_has_page( uint32_t addr );
|
nkeynes@146 | 105 | int mem_load_block( const gchar *filename, uint32_t base, uint32_t size );
|
nkeynes@146 | 106 | int mem_save_block( const gchar *filename, uint32_t base, uint32_t size );
|
nkeynes@586 | 107 | void mem_set_trace( const gchar *tracelist, int flag );
|
nkeynes@10 | 108 | void mem_init( void );
|
nkeynes@10 | 109 | void mem_reset( void );
|
nkeynes@912 | 110 | void mem_copy_from_sh4( sh4ptr_t dest, sh4addr_t src, size_t count );
|
nkeynes@912 | 111 | void mem_copy_to_sh4( sh4addr_t dest, sh4ptr_t src, size_t count );
|
nkeynes@10 | 112 |
|
nkeynes@669 | 113 | /**
|
nkeynes@669 | 114 | * Write a long value directly to SH4-addressable memory.
|
nkeynes@669 | 115 | * @param dest a valid, writable physical memory address, relative to the SH4
|
nkeynes@669 | 116 | * @param value the value to write.
|
nkeynes@669 | 117 | */
|
nkeynes@669 | 118 | void mem_write_long( sh4addr_t dest, uint32_t value );
|
nkeynes@669 | 119 |
|
nkeynes@43 | 120 | #define ENABLE_DEBUG_MODE 1
|
nkeynes@43 | 121 |
|
nkeynes@586 | 122 | typedef enum { BREAK_NONE=0, BREAK_ONESHOT=1, BREAK_KEEP=2 } breakpoint_type_t;
|
nkeynes@586 | 123 |
|
nkeynes@43 | 124 | struct breakpoint_struct {
|
nkeynes@43 | 125 | uint32_t address;
|
nkeynes@586 | 126 | breakpoint_type_t type;
|
nkeynes@43 | 127 | };
|
nkeynes@43 | 128 |
|
nkeynes@43 | 129 | #define MAX_BREAKPOINTS 32
|
nkeynes@43 | 130 |
|
nkeynes@586 | 131 |
|
nkeynes@586 | 132 | #define MEM_FLAG_ROM 4 /* Mem region is ROM-based */
|
nkeynes@586 | 133 | #define MEM_FLAG_RAM 6
|
nkeynes@10 | 134 |
|
nkeynes@10 | 135 | #define WATCH_WRITE 1
|
nkeynes@10 | 136 | #define WATCH_READ 2
|
nkeynes@10 | 137 | #define WATCH_EXEC 3 /* AKA Breakpoint :) */
|
nkeynes@10 | 138 |
|
nkeynes@10 | 139 | typedef struct watch_point *watch_point_t;
|
nkeynes@10 | 140 |
|
nkeynes@10 | 141 | watch_point_t mem_new_watch( uint32_t start, uint32_t end, int flags );
|
nkeynes@10 | 142 | void mem_delete_watch( watch_point_t watch );
|
nkeynes@10 | 143 | watch_point_t mem_is_watched( uint32_t addr, int size, int op );
|
nkeynes@10 | 144 |
|
nkeynes@931 | 145 | extern mem_region_fn_t *ext_address_space;
|
nkeynes@931 | 146 |
|
nkeynes@931 | 147 | #define SIGNEXT4(n) ((((int32_t)(n))<<28)>>28)
|
nkeynes@931 | 148 | #define SIGNEXT8(n) ((int32_t)((int8_t)(n)))
|
nkeynes@931 | 149 | #define SIGNEXT12(n) ((((int32_t)(n))<<20)>>20)
|
nkeynes@931 | 150 | #define SIGNEXT16(n) ((int32_t)((int16_t)(n)))
|
nkeynes@931 | 151 | #define SIGNEXT32(n) ((int64_t)((int32_t)(n)))
|
nkeynes@931 | 152 | #define SIGNEXT48(n) ((((int64_t)(n))<<16)>>16)
|
nkeynes@931 | 153 | #define ZEROEXT32(n) ((int64_t)((uint64_t)((uint32_t)(n))))
|
nkeynes@736 | 154 |
|
nkeynes@939 | 155 | /* Ensure the given region allows all of read/write/execute. If not
|
nkeynes@939 | 156 | * page-aligned, some surrounding regions will similarly be unprotected.
|
nkeynes@939 | 157 | */
|
nkeynes@939 | 158 | void mem_unprotect( void *ptr, uint32_t size );
|
nkeynes@939 | 159 |
|
nkeynes@10 | 160 | #ifdef __cplusplus
|
nkeynes@10 | 161 | }
|
nkeynes@10 | 162 | #endif
|
nkeynes@736 | 163 |
|
nkeynes@736 | 164 | #endif /* !lxdream_mem_H */
|