sim/igen/gen-icache.h

   1 /* The IGEN simulator generator for GDB, the GNU Debugger.
   2
   3    Copyright 2002-2023 Free Software Foundation, Inc.
   4
   5    Contributed by Andrew Cagney.
   6
   7    This file is part of GDB.
   8
   9    This program is free software; you can redistribute it and/or modify
  10    it under the terms of the GNU General Public License as published by
  11    the Free Software Foundation; either version 3 of the License, or
  12    (at your option) any later version.
  13
  14    This program is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17    GNU General Public License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  21
  22
  23 /* Output code to manipulate the instruction cache: either create it
  24    or reference it */
  25
  26 typedef enum
  27 {
  28   declare_variables,
  29   define_variables,
  30   undef_variables,
  31 }
  32 icache_decl_type;
  33
  34 typedef enum
  35 {
  36   do_not_use_icache = 0,
  37   get_values_from_icache = 0x1,
  38   put_values_in_icache = 0x2,
  39   both_values_and_icache = 0x3,
  40 }
  41 icache_body_type;
  42
  43 extern void print_icache_body
  44   (lf *file,
  45    const insn_entry *instruction,
  46    const opcode_bits *expanded_bits,
  47    cache_entry *cache_rules,
  48    icache_decl_type what_to_declare,
  49    icache_body_type what_to_do, int nr_prefetched_words);
  50
  51
  52 /* Output an instruction cache decode function */
  53
  54 extern void print_icache_declaration
  55   (lf *file,
  56    const insn_entry *insn,
  57    const opcode_bits *expanded_bits,
  58    const insn_opcodes *opcodes,
  59    int nr_prefetched_words);
  60
  61 extern void print_icache_definition
  62   (lf *file,
  63    const insn_entry *insn,
  64    const opcode_bits *expanded_bits,
  65    const insn_opcodes *opcodes,
  66    cache_entry *cache_rules, int nr_prefetched_words);
  67
  68
  69 /* Output an instruction cache support function */
  70
  71 extern function_entry_handler print_icache_internal_function_declaration;
  72 extern function_entry_handler print_icache_internal_function_definition;
  73
  74
  75 /* Output the instruction cache table data structure */
  76
  77 extern void print_icache_struct
  78   (lf *file, const insn_table *instructions, cache_entry *cache_rules);
  79
  80
  81 /* Output a single instructions decoder */