-/* This file is blank */
+/* The IGEN simulator generator for GDB, the GNU Debugger.
+
+ Copyright 2002-2019 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/>. */
+
+
+typedef struct _opcode_field opcode_field;
+struct _opcode_field
+{
+ int word_nr;
+ int first;
+ int last;
+ int is_boolean;
+ int nr_opcodes;
+ unsigned boolean_constant;
+ opcode_field *parent;
+};
+
+typedef struct _opcode_bits opcode_bits;
+struct _opcode_bits
+{
+ int value;
+ int first;
+ int last;
+ insn_field_entry *field;
+ opcode_field *opcode;
+ opcode_bits *next;
+};
+
+typedef struct _insn_opcodes insn_opcodes;
+struct _insn_opcodes
+{
+ opcode_field *opcode;
+ insn_opcodes *next;
+};
+
+typedef struct _insn_list insn_list;
+struct _insn_list
+{
+ /* the instruction */
+ insn_entry *insn;
+ /* list of non constant bits that have been made constant */
+ opcode_bits *expanded_bits;
+ /* list of the various opcode field paths used to reach this
+ instruction */
+ insn_opcodes *opcodes;
+ /* number of prefetched words for this instruction */
+ int nr_prefetched_words;
+ /* The semantic function list_entry corresponding to this insn */
+ insn_list *semantic;
+ /* linked list */
+ insn_list *next;
+};
+
+/* forward */
+typedef struct _gen_list gen_list;
+
+typedef struct _gen_entry gen_entry;
+struct _gen_entry
+{
+
+ /* as an entry in a table */
+ int word_nr;
+ int opcode_nr;
+ gen_entry *sibling;
+ opcode_bits *expanded_bits;
+ gen_entry *parent; /* parent has the opcode* data */
+
+ /* as a table containing entries */
+ decode_table *opcode_rule;
+ opcode_field *opcode;
+ int nr_prefetched_words;
+ int nr_entries;
+ gen_entry *entries;
+
+ /* as both an entry and a table */
+ int nr_insns;
+ insn_list *insns;
+
+ /* if siblings are being combined */
+ gen_entry *combined_next;
+ gen_entry *combined_parent;
+
+ /* our top-of-tree */
+ gen_list *top;
+};
+
+
+struct _gen_list
+{
+ model_entry *model;
+ insn_table *isa;
+ gen_entry *table;
+ gen_list *next;
+};
+
+
+typedef struct _gen_table gen_table;
+struct _gen_table
+{
+ /* list of all the instructions */
+ insn_table *isa;
+ /* list of all the semantic functions */
+ decode_table *rules;
+ /* list of all the generated instruction tables */
+ gen_list *tables;
+ /* list of all the semantic functions */
+ int nr_semantics;
+ insn_list *semantics;
+};
+
+
+extern gen_table *make_gen_tables (insn_table *isa, decode_table *rules);
+
+
+extern void gen_tables_expand_insns (gen_table *gen);
+
+extern void gen_tables_expand_semantics (gen_table *gen);
+
+extern int gen_entry_depth (gen_entry *table);
+
+
+
+/* Traverse the created data structure */
+
+typedef void gen_entry_handler
+ (lf *file, gen_entry *entry, int depth, void *data);
+
+extern void gen_entry_traverse_tree
+ (lf *file,
+ gen_entry *table,
+ int depth,
+ gen_entry_handler * start,
+ gen_entry_handler * leaf, gen_entry_handler * end, void *data);
+
+
+
+/* Misc functions - actually in igen.c */
+
+
+/* Cache functions: */
+
+extern int print_icache_function_formal (lf *file, int nr_prefetched_words);
+
+extern int print_icache_function_actual (lf *file, int nr_prefetched_words);
+
+extern int print_icache_function_type (lf *file);
+
+extern int print_semantic_function_formal (lf *file, int nr_prefetched_words);
+
+extern int print_semantic_function_actual (lf *file, int nr_prefetched_words);
+
+extern int print_semantic_function_type (lf *file);
+
+extern int print_idecode_function_formal (lf *file, int nr_prefetched_words);
+
+extern int print_idecode_function_actual (lf *file, int nr_prefetched_words);
+
+typedef enum
+{
+ function_name_prefix_semantics,
+ function_name_prefix_idecode,
+ function_name_prefix_itable,
+ function_name_prefix_icache,
+ function_name_prefix_engine,
+ function_name_prefix_none
+}
+lf_function_name_prefixes;
+
+typedef enum
+{
+ is_function_declaration = 0,
+ is_function_definition = 1,
+ is_function_variable,
+}
+function_decl_type;
+
+extern int print_function_name
+ (lf *file,
+ const char *basename,
+ const char *format_name,
+ const char *model_name,
+ opcode_bits *expanded_bits, lf_function_name_prefixes prefix);
+
+extern void print_my_defines
+ (lf *file,
+ const char *basename, const char *format_name, opcode_bits *expanded_bits);
+
+extern void print_itrace (lf *file, insn_entry * insn, int idecode);
+
+extern void print_sim_engine_abort (lf *file, const char *message);
+
+
+extern void print_include (lf *file, igen_module module);
+extern void print_include_inline (lf *file, igen_module module);
+extern void print_includes (lf *file);
projects / deliverable / binutils-gdb.git / blobdiff