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-rw-r--r--sim/igen/gen-engine.c807
1 files changed, 807 insertions, 0 deletions
diff --git a/sim/igen/gen-engine.c b/sim/igen/gen-engine.c
new file mode 100644
index 00000000000..4b6861ed97e
--- /dev/null
+++ b/sim/igen/gen-engine.c
@@ -0,0 +1,807 @@
+/* This file is part of the program psim.
+
+ Copyright (C) 1994-1998, Andrew Cagney <cagney@highland.com.au>
+
+ 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
+ (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, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ */
+
+#include "misc.h"
+#include "lf.h"
+#include "table.h"
+#include "filter.h"
+
+#include "igen.h"
+
+#include "ld-insn.h"
+#include "ld-decode.h"
+
+#include "gen.h"
+
+#include "gen-idecode.h"
+#include "gen-engine.h"
+#include "gen-icache.h"
+#include "gen-semantics.h"
+
+
+static void
+print_engine_issue_prefix_hook (lf *file)
+{
+ lf_printf (file, "\n");
+ lf_indent_suppress (file);
+ lf_printf (file, "#if defined (%sENGINE_ISSUE_PREFIX_HOOK)\n",
+ options.module.global.prefix.l);
+ lf_printf (file, "%sENGINE_ISSUE_PREFIX_HOOK();\n",
+ options.module.global.prefix.l);
+ lf_indent_suppress (file);
+ lf_printf (file, "#endif\n");
+ lf_printf (file, "\n");
+}
+
+static void
+print_engine_issue_postfix_hook (lf *file)
+{
+ lf_printf (file, "\n");
+ lf_indent_suppress (file);
+ lf_printf (file, "#if defined (%sENGINE_ISSUE_POSTFIX_HOOK)\n",
+ options.module.global.prefix.l);
+ lf_printf (file, "%sENGINE_ISSUE_POSTFIX_HOOK();\n",
+ options.module.global.prefix.l);
+ lf_indent_suppress (file);
+ lf_printf (file, "#endif\n");
+ lf_printf (file, "\n");
+}
+
+
+static void
+print_run_body (lf *file,
+ gen_entry *table)
+{
+ /* Output the function to execute real code:
+
+ Unfortunatly, there are multiple cases to consider vis:
+
+ <icache> X <smp>
+
+ Consequently this function is written in multiple different ways */
+
+ lf_printf (file, "{\n");
+ lf_indent (file, +2);
+ if (!options.gen.smp)
+ {
+ lf_printf (file, "%sinstruction_address cia;\n", options.module.global.prefix.l);
+ }
+ lf_printf (file, "int current_cpu = next_cpu_nr;\n");
+
+ if (options.gen.icache)
+ {
+ lf_printf (file, "/* flush the icache of a possible break insn */\n");
+ lf_printf (file, "{\n");
+ lf_printf (file, " int cpu_nr;\n");
+ lf_printf (file, " for (cpu_nr = 0; cpu_nr < nr_cpus; cpu_nr++)\n");
+ lf_printf (file, " cpu_flush_icache (STATE_CPU (sd, cpu_nr));\n");
+ lf_printf (file, "}\n");
+ }
+
+ if (!options.gen.smp)
+ {
+
+ lf_putstr (file, "
+/* CASE 1: NO SMP (with or with out instruction cache).
+
+In this case, we can take advantage of the fact that the current
+instruction address (CIA) does not need to be read from / written to
+the CPU object after the execution of an instruction.
+
+Instead, CIA is only saved when the main loop exits. This occures
+when either sim_engine_halt or sim_engine_restart is called. Both of
+these functions save the current instruction address before halting /
+restarting the simulator.
+
+As a variation, there may also be support for an instruction cracking
+cache. */
+
+");
+
+ lf_putstr (file, "\n");
+ 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, "\n");
+ lf_putstr (file, "while (1)\n");
+ lf_putstr (file, " {\n");
+ lf_indent (file, +4);
+
+ lf_printf (file, "%sinstruction_address nia;\n",
+ options.module.global.prefix.l);
+
+ lf_printf (file, "\n");
+ if (!options.gen.icache)
+ {
+ lf_printf (file, "%sinstruction_word instruction_0 = IMEM%d (cia);\n",
+ options.module.global.prefix.l,
+ options.insn_bit_size);
+ print_engine_issue_prefix_hook (file);
+ print_idecode_body (file, table, "nia = ");
+ print_engine_issue_postfix_hook (file);
+ }
+ else
+ {
+ lf_putstr (file, "idecode_cache *cache_entry =\n");
+ lf_putstr (file, " cpu_icache_entry (cpu, cia);\n");
+ lf_putstr (file, "if (cache_entry->address == cia)\n");
+ lf_putstr (file, " {\n");
+ lf_indent (file, -4);
+ lf_putstr (file, "/* cache hit */\n");
+ lf_putstr (file, "idecode_semantic *const semantic = cache_entry->semantic;\n");
+ lf_putstr (file, "cia = semantic (cpu, cache_entry, cia);\n");
+ /* tail */
+ lf_indent (file, -4);
+ lf_putstr (file, " }\n");
+ lf_putstr (file, "else\n");
+ lf_putstr (file, " {\n");
+ lf_indent (file, +4);
+ lf_putstr (file, "/* cache miss */\n");
+ if (!options.gen.semantic_icache)
+ {
+ lf_putstr (file, "idecode_semantic *semantic;\n");
+ }
+ lf_printf (file, "instruction_word instruction = IMEM%d (cia);\n",
+ options.insn_bit_size);
+ lf_putstr (file, "if (WITH_MON != 0)\n");
+ lf_putstr (file, " mon_event (mon_event_icache_miss, cpu, cia);\n");
+ if (options.gen.semantic_icache)
+ {
+ lf_putstr (file, "{\n");
+ lf_indent (file, +2);
+ print_engine_issue_prefix_hook (file);
+ print_idecode_body (file, table, "nia =");
+ print_engine_issue_postfix_hook (file);
+ lf_indent (file, -2);
+ lf_putstr (file, "}\n");
+ }
+ else
+ {
+ print_engine_issue_prefix_hook (file);
+ print_idecode_body (file, table, "semantic =");
+ lf_putstr (file, "nia = semantic (cpu, cache_entry, cia);\n");
+ print_engine_issue_postfix_hook (file);
+ }
+ lf_indent (file, -4);
+ lf_putstr (file, " }\n");
+ }
+
+ /* update the cpu if necessary */
+ switch (options.gen.nia)
+ {
+ case nia_is_cia_plus_one:
+ lf_printf (file, "\n");
+ lf_printf (file, "/* Update the instruction address */\n");
+ lf_printf (file, "cia = nia;\n");
+ break;
+ case nia_is_void:
+ case nia_is_invalid:
+ ERROR ("engine gen when NIA complex");
+ }
+
+ /* events */
+ lf_putstr (file, "\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, " sim_events_process (sd);\n");
+ lf_putstr (file, " cia = CIA_GET (CPU);\n");
+ lf_putstr (file, " }\n");
+
+ lf_indent (file, -4);
+ lf_printf (file, " }\n");
+ }
+
+ if (options.gen.smp)
+ {
+
+ lf_putstr (file, "
+/* CASE 2: SMP (With or without ICACHE)
+
+The complexity here comes from needing to correctly halt the simulator
+when it is aborted. For instance, if cpu0 requests a restart then
+cpu1 will normally be the next cpu that is run. Cpu0 being restarted
+after all the other CPU's and the event queue have been processed */
+
+");
+
+ lf_putstr (file, "\n");
+ lf_printf (file, "/* have ensured that the event queue is NOT next */\n");
+ lf_printf (file, "SIM_ASSERT (current_cpu >= 0);\n");
+ lf_printf (file, "SIM_ASSERT (current_cpu <= nr_cpus - 1);\n");
+ lf_printf (file, "SIM_ASSERT (nr_cpus <= MAX_NR_PROCESSORS);\n");
+
+ lf_putstr (file, "\n");
+ lf_putstr (file, "while (1)\n");
+ 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, "\n");
+
+ if (!options.gen.icache)
+ {
+ lf_printf (file, "instruction_word instruction_0 = IMEM%d (cia);\n",
+ options.insn_bit_size);
+ print_engine_issue_prefix_hook (file);
+ print_idecode_body (file, table, "cia =");
+ lf_putstr (file, "CIA_SET (cpu, cia);\n");
+ print_engine_issue_postfix_hook (file);
+ }
+
+ if (options.gen.icache)
+ {
+ lf_putstr (file, "engine_cache *cache_entry =\n");
+ lf_putstr (file, " cpu_icache_entry(processor, cia);\n");
+ lf_putstr (file, "\n");
+ lf_putstr (file, "if (cache_entry->address == cia) {\n");
+ {
+ lf_indent (file, +2);
+ lf_putstr (file, "\n");
+ lf_putstr (file, "/* cache hit */\n");
+ lf_putstr (file, "engine_semantic *semantic = cache_entry->semantic;\n");
+ lf_putstr (file, "cia = semantic(processor, cache_entry, cia);\n");
+ /* tail */
+ lf_putstr (file, "cpu_set_program_counter(processor, cia);\n");
+ lf_putstr (file, "\n");
+ lf_indent (file, -2);
+ }
+ lf_putstr (file, "}\n");
+ lf_putstr (file, "else {\n");
+ {
+ lf_indent (file, +2);
+ lf_putstr (file, "\n");
+ lf_putstr (file, "/* cache miss */\n");
+ if (!options.gen.semantic_icache)
+ {
+ lf_putstr (file, "engine_semantic *semantic;\n");
+ }
+ lf_printf (file, "instruction_word instruction = IMEM%d (cia);\n",
+ options.insn_bit_size);
+ lf_putstr (file, "if (WITH_MON != 0)\n");
+ lf_putstr (file, " mon_event(mon_event_icache_miss, processors[current_cpu], cia);\n");
+ if (options.gen.semantic_icache)
+ {
+ lf_putstr (file, "{\n");
+ lf_indent (file, +2);
+ print_engine_issue_prefix_hook (file);
+ print_idecode_body(file, table, "cia =");
+ print_engine_issue_postfix_hook (file);
+ lf_indent (file, -2);
+ lf_putstr (file, "}\n");
+ }
+ else
+ {
+ print_engine_issue_prefix_hook (file);
+ print_idecode_body(file, table, "semantic = ");
+ lf_putstr (file, "cia = semantic(processor, cache_entry, cia);\n");
+ print_engine_issue_postfix_hook (file);
+ }
+ /* tail */
+ lf_putstr (file, "cpu_set_program_counter(processor, cia);\n");
+ lf_putstr (file, "\n");
+ lf_indent (file, -2);
+ }
+ lf_putstr (file, "}\n");
+ }
+
+ lf_putstr (file, "\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");
+
+ /* tail */
+ lf_indent (file, -4);
+ lf_putstr (file, " }\n");
+ }
+
+
+ lf_indent (file, -2);
+ lf_putstr (file, "}\n");
+}
+
+
+/****************************************************************/
+
+#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,
+ function_decl_type decl_type)
+{
+ int indent;
+ lf_printf (file, "\n");
+ switch (decl_type)
+ {
+ case is_function_declaration:
+ lf_print__function_type (file, "void", "INLINE_ENGINE", "\n");
+ break;
+ case is_function_definition:
+ lf_print__function_type (file, "void", "INLINE_ENGINE", " ");
+ break;
+ case is_function_variable:
+ lf_printf (file, "void (*");
+ break;
+ }
+ indent = print_function_name (file,
+ "run",
+ NULL, /* format name */
+ processor,
+ NULL, /* expanded bits */
+ function_name_prefix_engine);
+ switch (decl_type)
+ {
+ case is_function_definition:
+ lf_putstr (file, "\n(");
+ indent = 1;
+ break;
+ case is_function_declaration:
+ indent += lf_printf (file, " (");
+ break;
+ case is_function_variable:
+ lf_putstr (file, ")\n(");
+ indent = 1;
+ break;
+ }
+ lf_indent (file, +indent);
+ lf_printf (file, "SIM_DESC sd,\n");
+ lf_printf (file, "int next_cpu_nr,\n");
+ lf_printf (file, "int nr_cpus,\n");
+ lf_printf (file, "int siggnal)");
+ lf_indent (file, -indent);
+ switch (decl_type)
+ {
+ case is_function_definition:
+ lf_putstr (file, "\n");
+ break;
+ case is_function_variable:
+ case is_function_declaration:
+ lf_putstr (file, ";\n");
+ break;
+ }
+}
+
+
+void
+gen_engine_h (lf *file,
+ gen_table *gen,
+ insn_table *isa,
+ cache_entry *cache_rules)
+{
+ gen_list *entry;
+ for (entry = gen->tables; entry != NULL; entry = entry->next)
+ {
+ print_engine_run_function_header (file,
+ (options.gen.multi_sim
+ ? entry->model->name
+ : NULL),
+ is_function_declaration);
+ }
+}
+
+
+void
+gen_engine_c(lf *file,
+ gen_table *gen,
+ insn_table *isa,
+ cache_entry *cache_rules)
+{
+ gen_list *entry;
+ /* the intro */
+ print_includes (file);
+ print_include_inline (file, options.module.semantics);
+ print_include (file, options.module.engine);
+ lf_printf (file, "\n");
+ lf_printf (file, "#include \"sim-assert.h\"\n");
+ lf_printf (file, "\n");
+ print_idecode_globals (file);
+ lf_printf (file, "\n");
+
+ for (entry = gen->tables; entry != NULL; entry = entry->next)
+ {
+ switch (options.gen.code)
+ {
+ case generate_calls:
+ print_idecode_lookups (file, entry->table, cache_rules);
+
+ /* output the main engine routine */
+ print_engine_run_function_header (file,
+ (options.gen.multi_sim
+ ? entry->model->name
+ : NULL),
+ is_function_definition);
+ print_run_body (file, entry->table);
+ break;
+
+ 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;
+ }
+ }
+}
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