sim/igen/gen-icache.h

/* The IGEN simulator generator for GDB, the GNU Debugger.

   Copyright 2002-2021 Free Software Foundation, Inc.

   Contributed by Andrew Cagney.

   This file is part of GDB.

   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 3 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, see <http://www.gnu.org/licenses/>.  */


/* Output code to manipulate the instruction cache: either create it
   or reference it */

typedef enum
{
  declare_variables,
  define_variables,
  undef_variables,
}
icache_decl_type;

typedef enum
{
  do_not_use_icache = 0,
  get_values_from_icache = 0x1,
  put_values_in_icache = 0x2,
  both_values_and_icache = 0x3,
}
icache_body_type;

extern void print_icache_body
  (lf *file,
   insn_entry * instruction,
   opcode_bits *expanded_bits,
   cache_entry *cache_rules,
   icache_decl_type what_to_declare,
   icache_body_type what_to_do, int nr_prefetched_words);


/* Output an instruction cache decode function */

extern void print_icache_declaration
  (lf *file,
   insn_entry * insn,
   opcode_bits *expanded_bits,
   insn_opcodes *opcodes, int nr_prefetched_words);

extern void print_icache_definition
  (lf *file,
   insn_entry * insn,
   opcode_bits *expanded_bits,
   insn_opcodes *opcodes, cache_entry *cache_rules, int nr_prefetched_words);


/* Output an instruction cache support function */

extern function_entry_handler print_icache_internal_function_declaration;
extern function_entry_handler print_icache_internal_function_definition;


/* Output the instruction cache table data structure */

extern void print_icache_struct
  (lf *file, insn_table *instructions, cache_entry *cache_rules);


/* Output a single instructions decoder */