/* The IGEN simulator generator for GDB, the GNU Debugger.
- Copyright 2002 Free Software Foundation, Inc.
+ Copyright 2002-2016 Free Software Foundation, Inc.
Contributed by Andrew Cagney.
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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "misc.h"
#include "lf.h"
lf_putstr (file, "/* prime the main loop */\n");
lf_putstr (file, "SIM_ASSERT (current_cpu == 0);\n");
lf_putstr (file, "SIM_ASSERT (nr_cpus == 1);\n");
- lf_putstr (file, "cia = CIA_GET (CPU);\n");
+ lf_putstr (file, "cia = CPU_PC_GET (CPU);\n");
lf_putstr (file, "\n");
lf_putstr (file, "while (1)\n");
lf_putstr (file, "/* process any events */\n");
lf_putstr (file, "if (sim_events_tick (sd))\n");
lf_putstr (file, " {\n");
- lf_putstr (file, " CIA_SET (CPU, cia);\n");
+ lf_putstr (file, " CPU_PC_SET (CPU, cia);\n");
lf_putstr (file, " sim_events_process (sd);\n");
- lf_putstr (file, " cia = CIA_GET (CPU);\n");
+ lf_putstr (file, " cia = CPU_PC_GET (CPU);\n");
lf_putstr (file, " }\n");
lf_indent (file, -4);
lf_putstr (file, " {\n");
lf_indent (file, +4);
lf_putstr (file, "sim_cpu *cpu = STATE_CPU (sd, current_cpu);\n");
- lf_putstr (file, "instruction_address cia = CIA_GET (cpu);\n");
+ lf_putstr (file, "instruction_address cia = CPU_PC_GET (cpu);\n");
lf_putstr (file, "\n");
if (!options.gen.icache)
options.insn_bit_size);
print_engine_issue_prefix_hook (file);
print_idecode_body (file, table, "cia =");
- lf_putstr (file, "CIA_SET (cpu, cia);\n");
+ lf_putstr (file, "CPU_PC_SET (cpu, cia);\n");
print_engine_issue_postfix_hook (file);
}
/****************************************************************/
-#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 / deliverable / binutils-gdb.git / blobdiff