sim/igen/gen-icache.h

   1 /* The IGEN simulator generator for GDB, the GNU Debugger.
   2
   3    Copyright 2002-2024 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 #ifndef IGEN_GEN_ICACHE_H
  23 #define IGEN_GEN_ICACHE_H
  24
  25 /* Output code to manipulate the instruction cache: either create it
  26    or reference it */
  27
  28 typedef enum
  29 {
  30   declare_variables,
  31   define_variables,
  32   undef_variables,
  33 }
  34 icache_decl_type;
  35
  36 typedef enum
  37 {
  38   do_not_use_icache = 0,
  39   get_values_from_icache = 0x1,
  40   put_values_in_icache = 0x2,
  41   both_values_and_icache = 0x3,
  42 }
  43 icache_body_type;
  44
  45 extern void print_icache_body
  46   (lf *file,
  47    const insn_entry *instruction,
  48    const opcode_bits *expanded_bits,
  49    cache_entry *cache_rules,
  50    icache_decl_type what_to_declare,
  51    icache_body_type what_to_do, int nr_prefetched_words);
  52
  53
  54 /* Output an instruction cache decode function */
  55
  56 extern void print_icache_declaration
  57   (lf *file,
  58    const insn_entry *insn,
  59    const opcode_bits *expanded_bits,
  60    const insn_opcodes *opcodes,
  61    int nr_prefetched_words);
  62
  63 extern void print_icache_definition
  64   (lf *file,
  65    const insn_entry *insn,
  66    const opcode_bits *expanded_bits,
  67    const insn_opcodes *opcodes,
  68    cache_entry *cache_rules, int nr_prefetched_words);
  69
  70
  71 /* Output an instruction cache support function */
  72
  73 extern function_entry_handler print_icache_internal_function_declaration;
  74 extern function_entry_handler print_icache_internal_function_definition;
  75
  76
  77 /* Output the instruction cache table data structure */
  78
  79 extern void print_icache_struct
  80   (lf *file, const insn_table *instructions, cache_entry *cache_rules);
  81
  82
  83 /* Output a single instructions decoder */
  84
  85 #endif /* IGEN_GEN_ICACHE_H */