home *** CD-ROM | disk | FTP | other *** search
- /* This file is part of the program psim.
-
- Copyright (C) 1994-1996, Andrew Cagney <cagney@highland.com.au>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- */
-
-
- #ifndef _CORE_H_
- #define _CORE_H_
-
- /* basic types */
-
- typedef struct _core core;
- typedef struct _core_map core_map;
-
- /* constructor */
-
- INLINE_CORE\
- (core *) core_create
- (device *root);
-
- INLINE_CORE\
- (device *) core_device_create
- (void);
-
-
-
- /* the core has three sub mappings that the more efficient
- read/write fixed quantity functions use */
-
- INLINE_CORE\
- (core_map *) core_readable
- (core *memory);
-
- INLINE_CORE\
- (core_map *) core_writeable
- (core *memory);
-
- INLINE_CORE\
- (core_map *) core_executable
- (core *memory);
-
-
-
- /* operators to add/remove a mapping in the core
-
- callback-memory:
-
- All access are passed onto the specified devices callback routines
- after being `translated'. DEFAULT indicates that the specified
- memory should be called if all other mappings fail.
-
- For callback-memory, the device must be specified.
-
- raw-memory:
-
- While RAM could be implemented using the callback interface
- core instead treats it as the common case including the code
- directly in the read/write operators.
-
- For raw-memory, the device is ignored and the core alloc's a
- block to act as the memory.
-
- default-memory:
-
- Should, for the core, there be no defined mapping for a given
- address then the default map (if present) is called.
-
- For default-memory, the device must be specified. */
-
- INLINE_CORE\
- (void) core_attach
- (core *map,
- attach_type attach,
- int address_space,
- access_type access,
- unsigned_word addr,
- unsigned nr_bytes, /* host limited */
- device *device); /*callback/default*/
-
- /* Variable sized read/write:
-
- Transfer (zero) a variable size block of data between the host and
- target (possibly byte swapping it). Should any problems occure,
- the number of bytes actually transfered is returned. */
-
- INLINE_CORE\
- (unsigned) core_map_read_buffer
- (core_map *map,
- void *buffer,
- unsigned_word addr,
- unsigned nr_bytes);
-
- INLINE_CORE\
- (unsigned) core_map_write_buffer
- (core_map *map,
- const void *buffer,
- unsigned_word addr,
- unsigned nr_bytes);
-
-
- /* Fixed sized read/write:
-
- Transfer a fixed amout of memory between the host and target. The
- memory always being translated and the operation always aborting
- should a problem occure */
-
- #define DECLARE_CORE_WRITE_N(N) \
- INLINE_CORE\
- (void) core_map_write_##N \
- (core_map *map, \
- unsigned_word addr, \
- unsigned_##N val, \
- cpu *processor, \
- unsigned_word cia);
-
- DECLARE_CORE_WRITE_N(1)
- DECLARE_CORE_WRITE_N(2)
- DECLARE_CORE_WRITE_N(4)
- DECLARE_CORE_WRITE_N(8)
- DECLARE_CORE_WRITE_N(word)
-
- #define DECLARE_CORE_READ_N(N) \
- INLINE_CORE\
- (unsigned_##N) core_map_read_##N \
- (core_map *map, \
- unsigned_word addr, \
- cpu *processor, \
- unsigned_word cia);
-
- DECLARE_CORE_READ_N(1)
- DECLARE_CORE_READ_N(2)
- DECLARE_CORE_READ_N(4)
- DECLARE_CORE_READ_N(8)
- DECLARE_CORE_READ_N(word)
-
- #endif
-