filename | src/mem.h |
changeset | 911:2f6ba75b84d1 |
prev | 736:a02d1475ccfd |
next | 912:c5606ea44232 |
author | nkeynes |
date | Fri Oct 31 02:57:59 2008 +0000 (15 years ago) |
permissions | -rw-r--r-- |
last change | Declare mem_copy_* functions as FASTCALL Split sh4_flush_store_queue into TLB/non-TLB versions, and optimize slightly based on that |
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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@10 | 25 | |
nkeynes@10 | 26 | #ifdef __cplusplus |
nkeynes@10 | 27 | extern "C" { |
nkeynes@10 | 28 | #endif |
nkeynes@10 | 29 | |
nkeynes@10 | 30 | typedef struct mem_region { |
nkeynes@10 | 31 | uint32_t base; |
nkeynes@10 | 32 | uint32_t size; |
nkeynes@422 | 33 | const char *name; |
nkeynes@502 | 34 | sh4ptr_t mem; |
nkeynes@510 | 35 | uint32_t flags; |
nkeynes@10 | 36 | } *mem_region_t; |
nkeynes@10 | 37 | |
nkeynes@10 | 38 | #define MAX_IO_REGIONS 24 |
nkeynes@10 | 39 | #define MAX_MEM_REGIONS 8 |
nkeynes@10 | 40 | |
nkeynes@180 | 41 | #define MEM_REGION_BIOS "Bios ROM" |
nkeynes@10 | 42 | #define MEM_REGION_MAIN "System RAM" |
nkeynes@10 | 43 | #define MEM_REGION_VIDEO "Video RAM" |
nkeynes@10 | 44 | #define MEM_REGION_AUDIO "Audio RAM" |
nkeynes@10 | 45 | #define MEM_REGION_AUDIO_SCRATCH "Audio Scratch RAM" |
nkeynes@146 | 46 | #define MEM_REGION_FLASH "System Flash" |
nkeynes@10 | 47 | |
nkeynes@422 | 48 | void *mem_create_ram_region( uint32_t base, uint32_t size, const char *name ); |
nkeynes@422 | 49 | void *mem_create_repeating_ram_region( uint32_t base, uint32_t size, const char *name, |
nkeynes@146 | 50 | uint32_t repeat_offset, uint32_t last_repeat ); |
nkeynes@543 | 51 | /** |
nkeynes@543 | 52 | * Load a ROM image from the specified filename. If the memory region has not |
nkeynes@543 | 53 | * been allocated, it is created now, otherwise the existing region is reused. |
nkeynes@543 | 54 | * If the CRC check fails, a warning will be printed. |
nkeynes@543 | 55 | * @return TRUE if the image was loaded successfully (irrespective of CRC failure). |
nkeynes@543 | 56 | */ |
nkeynes@543 | 57 | gboolean mem_load_rom( const gchar *filename, uint32_t base, uint32_t size, |
nkeynes@543 | 58 | uint32_t crc, const gchar *region_name ); |
nkeynes@19 | 59 | void *mem_alloc_pages( int n ); |
nkeynes@502 | 60 | sh4ptr_t mem_get_region( uint32_t addr ); |
nkeynes@502 | 61 | sh4ptr_t mem_get_region_by_name( const char *name ); |
nkeynes@10 | 62 | int mem_has_page( uint32_t addr ); |
nkeynes@502 | 63 | sh4ptr_t mem_get_page( uint32_t addr ); |
nkeynes@146 | 64 | int mem_load_block( const gchar *filename, uint32_t base, uint32_t size ); |
nkeynes@146 | 65 | int mem_save_block( const gchar *filename, uint32_t base, uint32_t size ); |
nkeynes@586 | 66 | void mem_set_trace( const gchar *tracelist, int flag ); |
nkeynes@10 | 67 | void mem_init( void ); |
nkeynes@10 | 68 | void mem_reset( void ); |
nkeynes@911 | 69 | void FASTCALL mem_copy_from_sh4( sh4ptr_t dest, sh4addr_t src, size_t count ); |
nkeynes@911 | 70 | void FASTCALL mem_copy_to_sh4( sh4addr_t dest, sh4ptr_t src, size_t count ); |
nkeynes@10 | 71 | |
nkeynes@669 | 72 | /** |
nkeynes@669 | 73 | * Write a long value directly to SH4-addressable memory. |
nkeynes@669 | 74 | * @param dest a valid, writable physical memory address, relative to the SH4 |
nkeynes@669 | 75 | * @param value the value to write. |
nkeynes@669 | 76 | */ |
nkeynes@669 | 77 | void mem_write_long( sh4addr_t dest, uint32_t value ); |
nkeynes@669 | 78 | |
nkeynes@43 | 79 | #define ENABLE_DEBUG_MODE 1 |
nkeynes@43 | 80 | |
nkeynes@586 | 81 | typedef enum { BREAK_NONE=0, BREAK_ONESHOT=1, BREAK_KEEP=2 } breakpoint_type_t; |
nkeynes@586 | 82 | |
nkeynes@43 | 83 | struct breakpoint_struct { |
nkeynes@43 | 84 | uint32_t address; |
nkeynes@586 | 85 | breakpoint_type_t type; |
nkeynes@43 | 86 | }; |
nkeynes@43 | 87 | |
nkeynes@43 | 88 | #define MAX_BREAKPOINTS 32 |
nkeynes@43 | 89 | |
nkeynes@586 | 90 | |
nkeynes@586 | 91 | #define MEM_FLAG_ROM 4 /* Mem region is ROM-based */ |
nkeynes@586 | 92 | #define MEM_FLAG_RAM 6 |
nkeynes@10 | 93 | |
nkeynes@10 | 94 | #define WATCH_WRITE 1 |
nkeynes@10 | 95 | #define WATCH_READ 2 |
nkeynes@10 | 96 | #define WATCH_EXEC 3 /* AKA Breakpoint :) */ |
nkeynes@10 | 97 | |
nkeynes@10 | 98 | typedef struct watch_point *watch_point_t; |
nkeynes@10 | 99 | |
nkeynes@10 | 100 | watch_point_t mem_new_watch( uint32_t start, uint32_t end, int flags ); |
nkeynes@10 | 101 | void mem_delete_watch( watch_point_t watch ); |
nkeynes@10 | 102 | watch_point_t mem_is_watched( uint32_t addr, int size, int op ); |
nkeynes@10 | 103 | |
nkeynes@502 | 104 | extern sh4ptr_t *page_map; |
nkeynes@736 | 105 | |
nkeynes@10 | 106 | #ifdef __cplusplus |
nkeynes@10 | 107 | } |
nkeynes@10 | 108 | #endif |
nkeynes@736 | 109 | |
nkeynes@736 | 110 | #endif /* !lxdream_mem_H */ |
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