127 lines
3.1 KiB
C
127 lines
3.1 KiB
C
/* This file is part of the program psim.
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Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef _MEMORY_MAP_H_
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#define _MEMORY_MAP_H_
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#ifndef INLINE_MEMORY_MAP
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#define INLINE_MEMORY_MAP
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#endif
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/* basic types */
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typedef struct _memory_map memory_map;
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/* constructor */
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INLINE_MEMORY_MAP memory_map *new_memory_map
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(void);
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/* operators to add memory to a memory map
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callback-memory:
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includes a callback routine that is called upon for the data.
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Useful when modeling memory mapped devices.
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raw-memory:
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normal base and bound memory map used to model ram or mapped memory
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pages */
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INLINE_MEMORY_MAP void memory_map_add_callback_memory
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(memory_map *map,
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device_node *device,
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device_reader_callback *reader,
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device_writer_callback *writer,
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unsigned_word base,
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unsigned size); /* host limited */
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INLINE_MEMORY_MAP void memory_map_add_raw_memory
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(memory_map *map,
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void *buffer,
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unsigned_word base,
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unsigned size/*host limited*/);
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/* Variable sized read/write/zero:
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Transfer (zero) a variable size block of data between the host and
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target (possibly byte swapping it). Should any problems occure,
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the number of bytes actually transfered is returned. */
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INLINE_MEMORY_MAP unsigned memory_map_read_buffer
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(memory_map *map,
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void *buffer,
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unsigned_word addr,
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unsigned len,
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transfer_mode mode);
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INLINE_MEMORY_MAP unsigned memory_map_write_buffer
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(memory_map *map,
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const void *buffer,
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unsigned_word addr,
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unsigned len,
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transfer_mode mode);
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INLINE_MEMORY_MAP unsigned memory_map_zero
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(memory_map *map,
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unsigned_word addr,
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unsigned len);
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/* Fixed sized read/write:
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Transfer a fixed amout of memory between the host and target. The
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memory always being translated and the operation always aborting
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should a problem occure */
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#define DECLARE_MEMORY_MAP_WRITE_N(N) \
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INLINE_MEMORY_MAP void memory_map_write_##N \
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(memory_map *map, \
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unsigned_word addr, \
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unsigned_##N val, \
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cpu *processor, \
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unsigned_word cia);
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DECLARE_MEMORY_MAP_WRITE_N(1)
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DECLARE_MEMORY_MAP_WRITE_N(2)
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DECLARE_MEMORY_MAP_WRITE_N(4)
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DECLARE_MEMORY_MAP_WRITE_N(8)
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DECLARE_MEMORY_MAP_WRITE_N(word)
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#define DECLARE_MEMORY_MAP_READ_N(N) \
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INLINE_MEMORY_MAP unsigned_##N memory_map_read_##N \
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(memory_map *map, \
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unsigned_word addr, \
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cpu *processor, \
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unsigned_word cia);
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DECLARE_MEMORY_MAP_READ_N(1)
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DECLARE_MEMORY_MAP_READ_N(2)
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DECLARE_MEMORY_MAP_READ_N(4)
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DECLARE_MEMORY_MAP_READ_N(8)
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DECLARE_MEMORY_MAP_READ_N(word)
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#endif
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