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/*  This file is part of the program psim.

    Copyright (C) 1994,1995,1996, 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.

    */

/*

#   --

#

#

# Fields:

#

#       1       Instruction format as a `start-bit,content' pairs.

#               the content is one of a digit, field name or `/' (aka.0)

#

#       2       Format specifier

#

#       3       Flags:  64 - 64bit only

#                       f - floating point enabled required

#

#       4       short name

#

#       5       Description

#

#

# For flags marked 'model', the fields are interpreted as follows:

#

#       1       Not used

#

#       2       Not used

#

#       3       "macro"

#

#       4       String name for model

#

#       5       Specific CPU model, must be an identifier

#

#       6       Comma separated list of functional units

*/

/* Global constants */

enum {

  max_insn_bit_size = 32,

};

typedef struct _insn_field insn_field;

struct _insn_field {

  int first;

  int last;

  int width;

  int is_int;

  int is_slash;

  int is_string;

  int val_int;

  char *pos_string;

  char *val_string;

  insn_field *next;

  insn_field *prev;

};

typedef struct _insn_fields insn_fields;

struct _insn_fields {

  insn_field *bits[max_insn_bit_size];

  insn_field *first;

  insn_field *last;

  unsigned value;

};

/****************************************************************/

typedef struct _opcode_field opcode_field;

struct _opcode_field {

  int first;

  int last;

  int is_boolean;

  unsigned boolean_constant;

  opcode_field *parent;

};

/****************************************************************/

typedef struct _insn_bits insn_bits;

struct _insn_bits {

  int is_expanded;

  int value;

  insn_field *field;

  opcode_field *opcode;

  insn_bits *last;

};

/****************************************************************/

typedef enum {

  insn_format,

  insn_form,

  insn_flags,

  insn_mnemonic,

  insn_name,

  insn_comment,

  nr_insn_table_fields

} insn_table_fields;

typedef enum {

  function_type = insn_format,

  function_name = insn_name,

  function_param = insn_comment

} function_table_fields;

typedef enum {

  model_name = insn_mnemonic,

  model_identifer = insn_name,

  model_default = insn_comment,

} model_table_fields;

typedef enum {

  include_flags = insn_flags,

  include_path = insn_name,

} model_include_fields;

typedef struct _insn insn;

struct _insn {

  table_entry *file_entry;

  insn_fields *fields;

  insn *next;

};

typedef struct _insn_undef insn_undef;

struct _insn_undef {

  insn_undef *next;

  char *name;

};

typedef struct _model model;

struct _model {

  model *next;

  char *name;

  char *printable_name;

  char *insn_default;

  table_model_entry *func_unit_start;

  table_model_entry *func_unit_end;

};

typedef struct _insn_table insn_table;

struct _insn_table {

  int opcode_nr;

  insn_bits *expanded_bits;

  int nr_insn;

  insn *insns;

  insn *functions;

  insn *last_function;

  decode_table *opcode_rule;

  opcode_field *opcode;

  int nr_entries;

  insn_table *entries;

  insn_table *sibling;

  insn_table *parent;

};

typedef enum {

  insn_model_name,

  insn_model_fields,

  nr_insn_model_table_fields

} insn_model_table_fields;

extern insn_table *load_insn_table

(const char *file_name,

 decode_table *decode_rules,

 filter *filters,

 table_include *includes);

model *models;

model *last_model;

insn *model_macros;

insn *last_model_macro;

insn *model_functions;

insn *last_model_function;

insn *model_internal;

insn *last_model_internal;

insn *model_static;

insn *last_model_static;

insn *model_data;

insn *last_model_data;

int max_model_fields_len;

extern void insn_table_insert_insn

(insn_table *table,

 table_entry *file_entry,

 insn_fields *fields);

/****************************************************************/

/****************************************************************/

typedef void leaf_handler

(insn_table *entry,

 lf *file,

 void *data,

 int depth);

typedef void insn_handler

(insn_table *table,

 lf *file,

 void *data,

 insn *instruction,

 int depth);

typedef void padding_handler

(insn_table *table,

 lf *file,

 void *data,

 int depth,

 int opcode_nr);

extern void insn_table_traverse_tree

(insn_table *table,

 lf *file,

 void *data,

 int depth,

 leaf_handler *start,

 insn_handler *handler,

 leaf_handler *end,

 padding_handler *padding);

extern void insn_table_traverse_insn

(insn_table *table,

 lf *file,

 void *data,

 insn_handler *handler);

/****************************************************************/

typedef void function_handler

(insn_table *table,

 lf *file,

 void *data,

 table_entry *function);

extern void

insn_table_traverse_function

(insn_table *table,

 lf *file,

 void *data,

 function_handler *leaf);

/****************************************************************/

extern void insn_table_expand_insns

(insn_table *table);

extern int insn_table_depth

(insn_table *table);