/* The IGEN simulator generator for GDB, the GNU Debugger.
- Copyright 2002, 2007, 2008, 2009 Free Software Foundation, Inc.
+ Copyright 2002-2013 Free Software Foundation, Inc.
Contributed by Andrew Cagney.
/****************************************************************/
-#if 0
-static void
-print_jump (lf *file, int is_tail)
-{
- if (!options.gen.smp)
- {
- lf_putstr (file, "if (event_queue_tick (sd))\n");
- lf_putstr (file, " {\n");
- lf_putstr (file, " CPU_CIA (processor) = nia;\n");
- lf_putstr (file, " sim_events_process (sd);\n");
- lf_putstr (file, " }\n");
- lf_putstr (file, "}\n");
- }
-
- if (options.gen.smp)
- {
- if (is_tail)
- lf_putstr (file, "cpu_set_program_counter(processor, nia);\n");
- lf_putstr (file, "current_cpu += 1;\n");
- lf_putstr (file, "if (current_cpu >= nr_cpus)\n");
- lf_putstr (file, " {\n");
- lf_putstr (file, " if (sim_events_tick (sd))\n");
- lf_putstr (file, " {\n");
- lf_putstr (file, " sim_events_process (sd);\n");
- lf_putstr (file, " }\n");
- lf_putstr (file, " current_cpu = 0;\n");
- lf_putstr (file, " }\n");
- lf_putstr (file, "processor = processors[current_cpu];\n");
- lf_putstr (file, "nia = cpu_get_program_counter(processor);\n");
- }
-
- if (options.gen.icache)
- {
- lf_putstr (file, "cache_entry = cpu_icache_entry(processor, nia);\n");
- lf_putstr (file, "if (cache_entry->address == nia) {\n");
- lf_putstr (file, " /* cache hit */\n");
- lf_putstr (file, " goto *cache_entry->semantic;\n");
- lf_putstr (file, "}\n");
- if (is_tail)
- {
- lf_putstr (file, "goto cache_miss;\n");
- }
- }
-
- if (!options.gen.icache && is_tail)
- {
- lf_printf (file, "goto engine;\n");
- }
-
-}
-#endif
-
-
-#if 0
-static void
-print_jump_insn (lf *file,
- insn_entry * instruction,
- opcode_bits *expanded_bits,
- opcode_field *opcodes, cache_entry *cache_rules)
-{
- insn_opcodes opcode_path;
-
- memset (&opcode_path, 0, sizeof (opcode_path));
- opcode_path.opcode = opcodes;
-
- /* what we are for the moment */
- lf_printf (file, "\n");
- print_my_defines (file,
- instruction->name,
- instruction->format_name, expanded_bits);
-
- /* output the icache entry */
- if (options.gen.icache)
- {
- lf_printf (file, "\n");
- lf_indent (file, -1);
- print_function_name (file,
- instruction->name,
- instruction->format_name,
- NULL, expanded_bits, function_name_prefix_icache);
- lf_printf (file, ":\n");
- lf_indent (file, +1);
- lf_printf (file, "{\n");
- lf_indent (file, +2);
- lf_putstr (file, "const unsigned_word cia = nia;\n");
- print_itrace (file, instruction, 1 /*putting-value-in-cache */ );
- print_idecode_validate (file, instruction, &opcode_path);
- lf_printf (file, "\n");
- lf_printf (file, "{\n");
- lf_indent (file, +2);
- print_icache_body (file, instruction, expanded_bits, cache_rules, 0, /*use_defines */
- put_values_in_icache);
- lf_printf (file, "cache_entry->address = nia;\n");
- lf_printf (file, "cache_entry->semantic = &&");
- print_function_name (file,
- instruction->name,
- instruction->format_name,
- NULL,
- expanded_bits, function_name_prefix_semantics);
- lf_printf (file, ";\n");
- if (options.gen.semantic_icache)
- {
- print_semantic_body (file,
- instruction, expanded_bits, &opcode_path);
- print_jump (file, 1 /*is-tail */ );
- }
- else
- {
- lf_printf (file, "/* goto ");
- print_function_name (file,
- instruction->name,
- instruction->format_name,
- NULL,
- expanded_bits, function_name_prefix_semantics);
- lf_printf (file, "; */\n");
- }
- lf_indent (file, -2);
- lf_putstr (file, "}\n");
- lf_indent (file, -2);
- lf_printf (file, "}\n");
- }
-
- /* print the semantics */
- lf_printf (file, "\n");
- lf_indent (file, -1);
- print_function_name (file,
- instruction->name,
- instruction->format_name,
- NULL, expanded_bits, function_name_prefix_semantics);
- lf_printf (file, ":\n");
- lf_indent (file, +1);
- lf_printf (file, "{\n");
- lf_indent (file, +2);
- lf_putstr (file, "const unsigned_word cia = nia;\n");
- print_icache_body (file,
- instruction,
- expanded_bits,
- cache_rules,
- (options.gen.direct_access
- ? define_variables
- : declare_variables),
- (options.gen.icache
- ? get_values_from_icache : do_not_use_icache));
- print_semantic_body (file, instruction, expanded_bits, &opcode_path);
- if (options.gen.direct_access)
- print_icache_body (file,
- instruction,
- expanded_bits,
- cache_rules,
- undef_variables,
- (options.gen.icache
- ? get_values_from_icache : do_not_use_icache));
- print_jump (file, 1 /*is tail */ );
- lf_indent (file, -2);
- lf_printf (file, "}\n");
-}
-#endif
-
-
-#if 0
-static void
-print_jump_definition (lf *file, gen_entry *entry, int depth, void *data)
-{
- cache_entry *cache_rules = (cache_entry *) data;
- if (entry->opcode_rule->with_duplicates)
- {
- ASSERT (entry->nr_insns == 1
- && entry->opcode == NULL
- && entry->parent != NULL && entry->parent->opcode != NULL);
- ASSERT (entry->nr_insns == 1
- && entry->opcode == NULL
- && entry->parent != NULL
- && entry->parent->opcode != NULL
- && entry->parent->opcode_rule != NULL);
- print_jump_insn (file,
- entry->insns->insn,
- entry->expanded_bits, entry->opcode, cache_rules);
- }
- else
- {
- print_jump_insn (file, entry->insns->insn, NULL, NULL, cache_rules);
- }
-}
-#endif
-
-
-#if 0
-static void
-print_jump_internal_function (lf *file, function_entry * function, void *data)
-{
- if (function->is_internal)
- {
- lf_printf (file, "\n");
- lf_print__line_ref (file, function->line);
- lf_indent (file, -1);
- print_function_name (file,
- function->name,
- NULL,
- NULL,
- NULL,
- (options.gen.icache
- ? function_name_prefix_icache
- : function_name_prefix_semantics));
- lf_printf (file, ":\n");
- lf_indent (file, +1);
- lf_printf (file, "{\n");
- lf_indent (file, +2);
- lf_printf (file, "const unsigned_word cia = nia;\n");
- table_print_code (file, function->code);
- lf_print__internal_ref (file);
- lf_printf (file, "error(\"Internal function must longjump\\n\");\n");
- lf_indent (file, -2);
- lf_printf (file, "}\n");
- }
-}
-#endif
-
-
-#if 0
-static void
-print_jump_body (lf *file,
- gen_entry *entry, insn_table *isa, cache_entry *cache_rules)
-{
- lf_printf (file, "{\n");
- lf_indent (file, +2);
- lf_putstr (file, "jmp_buf halt;\n");
- lf_putstr (file, "jmp_buf restart;\n");
- lf_putstr (file, "cpu *processor = NULL;\n");
- lf_putstr (file, "unsigned_word nia = -1;\n");
- lf_putstr (file, "instruction_word instruction = 0;\n");
- if (options.gen.icache)
- {
- lf_putstr (file, "engine_cache *cache_entry = NULL;\n");
- }
- if (options.gen.smp)
- {
- lf_putstr (file, "int current_cpu = -1;\n");
- }
-
- /* all the switches and tables - they know about jumping */
- print_idecode_lookups (file, entry, cache_rules);
-
- /* start the simulation up */
- if (options.gen.icache)
- {
- lf_putstr (file, "\n");
- lf_putstr (file, "{\n");
- lf_putstr (file, " int cpu_nr;\n");
- lf_putstr (file, " for (cpu_nr = 0; cpu_nr < nr_cpus; cpu_nr++)\n");
- lf_putstr (file, " cpu_flush_icache(processors[cpu_nr]);\n");
- lf_putstr (file, "}\n");
- }
-
- lf_putstr (file, "\n");
- lf_putstr (file, "psim_set_halt_and_restart(system, &halt, &restart);\n");
-
- lf_putstr (file, "\n");
- lf_putstr (file, "if (setjmp(halt))\n");
- lf_putstr (file, " return;\n");
-
- lf_putstr (file, "\n");
- lf_putstr (file, "setjmp(restart);\n");
-
- lf_putstr (file, "\n");
- if (!options.gen.smp)
- {
- lf_putstr (file, "processor = processors[0];\n");
- lf_putstr (file, "nia = cpu_get_program_counter(processor);\n");
- }
- else
- {
- lf_putstr (file, "current_cpu = psim_last_cpu(system);\n");
- }
-
- if (!options.gen.icache)
- {
- lf_printf (file, "\n");
- lf_indent (file, -1);
- lf_printf (file, "engine:\n");
- lf_indent (file, +1);
- }
-
- print_jump (file, 0 /*is_tail */ );
-
- if (options.gen.icache)
- {
- lf_indent (file, -1);
- lf_printf (file, "cache_miss:\n");
- lf_indent (file, +1);
- }
-
- print_engine_issue_prefix_hook (file);
- lf_putstr (file, "instruction\n");
- lf_putstr (file,
- " = vm_instruction_map_read(cpu_instruction_map(processor),\n");
- lf_putstr (file, " processor, nia);\n");
- print_engine_issue_prefix_hook (file);
- print_idecode_body (file, entry, "/*IGORE*/");
- print_engine_issue_postfix_hook (file);
-
- /* print out a table of all the internals functions */
- function_entry_traverse (file, isa->functions,
- print_jump_internal_function, NULL);
-
- /* print out a table of all the instructions */
- ERROR ("Use the list of semantic functions, not travere_tree");
- gen_entry_traverse_tree (file, entry, 1, NULL, /* start */
- print_jump_definition, /* leaf */
- NULL, /* end */
- cache_rules);
- lf_indent (file, -2);
- lf_printf (file, "}\n");
-}
-#endif
-
-
-/****************************************************************/
-
-
void
print_engine_run_function_header (lf *file,
char *processor,
case generate_jumps:
ERROR ("Jumps currently unimplemented");
-#if 0
- print_engine_run_function_header (file,
- entry->processor,
- is_function_definition);
- print_jump_body (file, entry->table, isa, cache_rules);
-#endif
break;
}
}
projects / platform / upstream / binutils.git / blobdiff