sim/igen/gen-icache.h

   1 /*  This file is part of the program psim.
   2
   3     Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19     */
  20
  21
  22
  23 /* Output code to manipulate the instruction cache: either create it
  24    or reference it */
  25
  26 typedef enum {
  27   declare_variables,
  28   define_variables,
  29   undef_variables,
  30 } icache_decl_type;
  31
  32 typedef enum {
  33   do_not_use_icache = 0,
  34   get_values_from_icache = 0x1,
  35   put_values_in_icache = 0x2,
  36   both_values_and_icache = 0x3,
  37 } icache_body_type;
  38
  39 extern void print_icache_body
  40 (lf *file,
  41  insn_entry *instruction,
  42  opcode_bits *expanded_bits,
  43  cache_entry *cache_rules,
  44  icache_decl_type what_to_declare,
  45  icache_body_type what_to_do,
  46  int nr_prefetched_words);
  47
  48
  49 /* Output an instruction cache decode function */
  50
  51 extern void print_icache_declaration
  52 (lf *file,
  53  insn_entry *insn,
  54  opcode_bits *expanded_bits,
  55  insn_opcodes *opcodes,
  56  int nr_prefetched_words);
  57
  58 extern void print_icache_definition
  59 (lf *file,
  60  insn_entry *insn,
  61  opcode_bits *expanded_bits,
  62  insn_opcodes *opcodes,
  63  cache_entry *cache_rules,
  64  int nr_prefetched_words);
  65
  66
  67 /* Output an instruction cache support function */
  68
  69 extern function_entry_handler print_icache_internal_function_declaration;
  70 extern function_entry_handler print_icache_internal_function_definition;
  71
  72
  73 /* Output the instruction cache table data structure */
  74
  75 extern void print_icache_struct
  76 (lf *file,
  77  insn_table *instructions,
  78  cache_entry *cache_rules);
  79
  80
  81 /* Output a single instructions decoder */