mirror of
https://github.com/bminor/binutils-gdb.git
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Add multi-sim support to simulator.
This commit is contained in:
Andrew Cagney
@@ -24,66 +24,75 @@
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#include "lf.h"
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#include "table.h"
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#include "filter.h"
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#include "ld-decode.h"
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#include "ld-cache.h"
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#include "ld-insn.h"
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#include "igen.h"
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#include "ld-insn.h"
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#include "ld-decode.h"
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#include "gen.h"
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#include "gen-semantics.h"
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#include "gen-icache.h"
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#include "gen-idecode.h"
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static void
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print_semantic_function_header(lf *file,
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const char *basename,
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insn_bits *expanded_bits,
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int is_function_definition)
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print_semantic_function_header (lf *file,
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const char *basename,
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const char *format_name,
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opcode_bits *expanded_bits,
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int is_function_definition,
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int nr_prefetched_words)
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{
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int indent;
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lf_printf(file, "\n");
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lf_print_function_type_function(file, print_semantic_function_type, "EXTERN_SEMANTICS",
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(is_function_definition ? "\n" : " "));
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indent = print_function_name(file,
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basename,
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expanded_bits,
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function_name_prefix_semantics);
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lf_print__function_type_function (file, print_semantic_function_type,
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"EXTERN_SEMANTICS",
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(is_function_definition ? "\n" : " "));
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indent = print_function_name (file,
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basename,
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format_name,
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NULL,
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expanded_bits,
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function_name_prefix_semantics);
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if (is_function_definition)
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lf_indent(file, +indent);
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{
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indent += lf_printf (file, " ");
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lf_indent (file, +indent);
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}
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else
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lf_printf(file, "\n");
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lf_printf(file, "(");
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print_semantic_function_formal(file);
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lf_printf(file, ")");
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{
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lf_printf (file, "\n");
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}
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lf_printf (file, "(");
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lf_indent (file, +1);
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print_semantic_function_formal (file, nr_prefetched_words);
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lf_indent (file, -1);
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lf_printf (file, ")");
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if (is_function_definition)
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lf_indent(file, -indent);
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{
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lf_indent (file, -indent);
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}
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else
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lf_printf(file, ";");
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lf_printf(file, "\n");
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{
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lf_printf (file, ";");
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}
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lf_printf (file, "\n");
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}
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void
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print_semantic_declaration(insn_table *entry,
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lf *file,
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void *data,
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insn *instruction,
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int depth)
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print_semantic_declaration (lf *file,
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insn_entry *insn,
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opcode_bits *expanded_bits,
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insn_opcodes *opcodes,
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int nr_prefetched_words)
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{
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if (generate_expanded_instructions) {
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ASSERT(entry->nr_insn == 1);
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print_semantic_function_header(file,
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instruction->file_entry->fields[insn_name],
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entry->expanded_bits,
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0/* is not function definition*/);
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}
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else {
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print_semantic_function_header(file,
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instruction->file_entry->fields[insn_name],
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NULL,
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0/* is not function definition*/);
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}
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print_semantic_function_header (file,
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insn->name,
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insn->format_name,
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expanded_bits,
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0/* is not function definition*/,
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nr_prefetched_words);
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}
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@@ -92,226 +101,277 @@ print_semantic_declaration(insn_table *entry,
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void
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print_idecode_invalid(lf *file,
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const char *result,
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invalid_type type)
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print_idecode_invalid (lf *file,
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const char *result,
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invalid_type type)
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{
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const char *name;
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switch (type) {
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default: name = "unknown"; break;
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case invalid_illegal: name = "illegal"; break;
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case invalid_fp_unavailable: name = "fp_unavailable"; break;
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case invalid_wrong_slot: name = "wrong_slot"; break;
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}
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if ((code & generate_jumps))
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lf_printf(file, "goto %s_%s;\n",
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(code & generate_with_icache) ? "icache" : "semantic",
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name);
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else if ((code & generate_with_icache)) {
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lf_printf(file, "%s %sicache_%s(", result, global_name_prefix, name);
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print_icache_function_actual(file);
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lf_printf(file, ");\n");
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}
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else {
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lf_printf(file, "%s %ssemantic_%s(", result, global_name_prefix, name);
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print_semantic_function_actual(file);
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lf_printf(file, ");\n");
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}
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switch (type)
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{
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default: name = "unknown"; break;
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case invalid_illegal: name = "illegal"; break;
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case invalid_fp_unavailable: name = "fp_unavailable"; break;
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case invalid_wrong_slot: name = "wrong_slot"; break;
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}
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if (options.gen.code == generate_jumps)
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{
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lf_printf (file, "goto %s_%s;\n",
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(options.gen.icache ? "icache" : "semantic"),
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name);
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}
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else if (options.gen.icache)
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{
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lf_printf (file, "%s %sicache_%s (", result, options.prefix.global.name, name);
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print_icache_function_actual (file, 0);
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lf_printf (file, ");\n");
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}
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else
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{
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lf_printf (file, "%s %ssemantic_%s (", result, options.prefix.global.name, name);
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print_semantic_function_actual (file, 0);
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lf_printf (file, ");\n");
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}
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}
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void
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print_semantic_body(lf *file,
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insn *instruction,
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insn_bits *expanded_bits,
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opcode_field *opcodes)
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print_semantic_body (lf *file,
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insn_entry *instruction,
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opcode_bits *expanded_bits,
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insn_opcodes *opcodes)
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{
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print_itrace(file, instruction->file_entry, 0/*put_value_in_cache*/);
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print_itrace (file, instruction, 0/*put_value_in_cache*/);
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/* validate the instruction, if a cache this has already been done */
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if (!(code & generate_with_icache))
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print_idecode_validate(file, instruction, opcodes);
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if (!options.gen.icache)
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{
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print_idecode_validate (file, instruction, opcodes);
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}
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/* generate the profiling call - this is delayed until after the
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instruction has been verified */
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lf_printf(file, "\n");
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lf_indent_suppress(file);
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lf_printf(file, "#if defined(WITH_MON)\n");
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lf_printf(file, "/* monitoring: */\n");
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lf_printf(file, "if (WITH_MON & MONITOR_INSTRUCTION_ISSUE) {\n");
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lf_printf(file, " mon_issue(");
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print_function_name(file,
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instruction->file_entry->fields[insn_name],
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NULL,
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function_name_prefix_itable);
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lf_printf(file, ", cpu, cia);\n");
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lf_printf(file, "}\n");
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lf_indent_suppress(file);
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lf_printf(file, "#endif\n");
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lf_printf(file, "\n");
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/* determine the new instruction address */
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lf_printf(file, "/* keep the next instruction address handy */\n");
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if ((code & generate_with_semantic_returning_modified_nia_only))
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lf_printf(file, "nia = -1;\n");
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else if ((code & generate_with_semantic_delayed_branch)) {
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lf_printf(file, "nia.ip = cia.dp; /* instruction pointer */\n");
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lf_printf(file, "nia.dp = cia.dp + %d; /* delayed-slot pointer */\n",
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insn_bit_size / 8);
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}
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else
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lf_printf(file, "nia = cia + %d;\n", insn_bit_size / 8);
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/* if conditional, generate code to verify that the instruction
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should be issued */
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if (it_is("c", instruction->file_entry->fields[insn_options])
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|| (code & generate_with_semantic_conditional_issue)) {
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lf_printf(file, "\n");
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lf_printf(file, "/* execute only if conditional passes */\n");
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lf_printf(file, "if (IS_CONDITION_OK) {\n");
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lf_indent(file, +2);
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/* FIXME - need to log a conditional failure */
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{
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lf_printf (file, "\n");
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lf_indent_suppress (file);
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lf_printf (file, "#if defined (WITH_MON)\n");
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lf_printf (file, "/* monitoring: */\n");
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lf_printf (file, "if (WITH_MON & MONITOR_INSTRUCTION_ISSUE)\n");
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lf_printf (file, " mon_issue (");
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print_function_name (file,
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instruction->name,
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instruction->format_name,
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NULL,
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NULL,
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function_name_prefix_itable);
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lf_printf (file, ", cpu, cia);\n");
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lf_indent_suppress (file);
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lf_printf (file, "#endif\n");
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lf_printf (file, "\n");
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}
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/* Architecture expects r0 to be zero. Instead of having to check
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every read to see if it is refering to r0 just zap the r0
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register */
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if ((code & generate_with_semantic_zero_r0))
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/* determine the new instruction address */
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{
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lf_printf(file, "/* keep the next instruction address handy */\n");
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if (options.gen.nia == nia_is_invalid)
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{
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lf_printf(file, "nia = %sINVALID_INSTRUCTION_ADDRESS;\n",
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options.prefix.global.uname);
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}
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else
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{
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int nr_immeds = instruction->nr_words - 1;
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if (options.gen.delayed_branch)
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{
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if (nr_immeds > 0)
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{
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lf_printf (file, "cia.dp += %d * %d; %s\n",
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options.insn_bit_size / 8, nr_immeds,
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"/* skip dp immeds */");
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}
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lf_printf (file, "nia.ip = cia.dp; %s\n",
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"/* instruction pointer */");
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lf_printf (file, "nia.dp = cia.dp + %d; %s\n",
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options.insn_bit_size / 8,
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"/* delayed-slot pointer */");
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}
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else
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{
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if (nr_immeds > 0)
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{
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lf_printf (file, "nia = cia + %d * (%d + 1); %s\n",
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options.insn_bit_size / 8, nr_immeds,
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"/* skip immeds as well */");
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}
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else
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{
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lf_printf (file, "nia = cia + %d;\n",
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options.insn_bit_size / 8);
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}
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}
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}
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}
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/* if conditional, generate code to verify that the instruction
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should be issued */
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if (filter_is_member (instruction->options, "c")
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|| options.gen.conditional_issue)
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{
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lf_printf (file, "\n");
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lf_printf (file, "GPR(0) = 0;\n");
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lf_printf (file, "/* execute only if conditional passes */\n");
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lf_printf (file, "if (IS_CONDITION_OK)\n");
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lf_printf (file, " {\n");
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lf_indent (file, +4);
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/* FIXME - need to log a conditional failure */
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}
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/* Architecture expects a REG to be zero. Instead of having to
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check every read to see if it is refering to that REG just zap it
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at the start of every instruction */
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if (options.gen.zero_reg)
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{
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lf_printf (file, "\n");
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lf_printf (file, "GPR(%d) = 0;\n", options.gen.zero_reg_nr);
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}
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/* generate the code (or at least something */
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lf_printf(file, "\n");
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lf_printf(file, "/* semantics: */\n");
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if (instruction->file_entry->annex != NULL) {
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/* true code */
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table_entry_print_cpp_line_nr(file, instruction->file_entry);
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lf_printf(file, "{\n");
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lf_indent(file, +2);
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lf_print__c_code(file, instruction->file_entry->annex);
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lf_indent(file, -2);
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lf_printf(file, "}\n");
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lf_print__internal_reference(file);
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}
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else if (it_is("nop", instruction->file_entry->fields[insn_flags])) {
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lf_print__internal_reference(file);
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}
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else {
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/* abort so it is implemented now */
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table_entry_print_cpp_line_nr(file, instruction->file_entry);
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lf_printf(file, "sim_engine_abort (SD, CPU, cia, \"%s:%d:0x%%08lx:%%s unimplemented\\n\",\n",
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filter_filename(instruction->file_entry->file_name),
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instruction->file_entry->line_nr);
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if ((code & generate_with_semantic_delayed_branch))
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lf_printf(file, " (long)cia.ip,\n");
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else
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lf_printf(file, " (long)cia,\n");
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lf_printf(file, " itable[MY_INDEX].name);\n");
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lf_print__internal_reference(file);
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}
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lf_printf (file, "\n");
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lf_printf (file, "/* semantics: */\n");
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if (instruction->code != NULL)
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{
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/* true code */
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lf_printf (file, "{\n");
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lf_indent (file, +2);
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lf_print__line_ref (file, instruction->code->line);
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||||
table_print_code (file, instruction->code);
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||||
lf_indent (file, -2);
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||||
lf_printf (file, "}\n");
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||||
lf_print__internal_ref (file);
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||||
}
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||||
else if (filter_is_member (instruction->options, "nop"))
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||||
{
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lf_print__internal_ref (file);
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||||
}
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||||
else
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||||
{
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/* abort so it is implemented now */
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lf_print__line_ref (file, instruction->line);
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||||
lf_printf (file, "sim_engine_abort (SD, CPU, cia, \"%s:%d:0x%%08lx:%%s unimplemented\\n\",\n",
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filter_filename (instruction->line->file_name),
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instruction->line->line_nr);
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||||
if (options.gen.delayed_branch)
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||||
{
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||||
lf_printf (file, " (long)cia.ip,\n");
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||||
}
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||||
else
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||||
{
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||||
lf_printf (file, " (long)cia,\n");
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||||
}
|
||||
lf_printf (file, " %sitable[MY_INDEX].name);\n",
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||||
options.prefix.itable.name);
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||||
lf_print__internal_ref (file);
|
||||
}
|
||||
|
||||
/* Close off the conditional execution */
|
||||
if (it_is("c", instruction->file_entry->fields[insn_options])
|
||||
|| (code & generate_with_semantic_conditional_issue)) {
|
||||
lf_indent(file, -2);
|
||||
lf_printf(file, "}\n");
|
||||
}
|
||||
if (filter_is_member (instruction->options, "c")
|
||||
|| options.gen.conditional_issue)
|
||||
{
|
||||
lf_indent (file, -4);
|
||||
lf_printf (file, " }\n");
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
print_c_semantic(lf *file,
|
||||
insn *instruction,
|
||||
insn_bits *expanded_bits,
|
||||
opcode_field *opcodes,
|
||||
cache_table *cache_rules)
|
||||
print_c_semantic (lf *file,
|
||||
insn_entry *instruction,
|
||||
opcode_bits *expanded_bits,
|
||||
insn_opcodes *opcodes,
|
||||
cache_entry *cache_rules,
|
||||
int nr_prefetched_words)
|
||||
{
|
||||
|
||||
lf_printf(file, "{\n");
|
||||
lf_indent(file, +2);
|
||||
|
||||
print_my_defines(file, expanded_bits, instruction->file_entry);
|
||||
lf_printf(file, "\n");
|
||||
print_icache_body(file,
|
||||
instruction,
|
||||
expanded_bits,
|
||||
cache_rules,
|
||||
((code & generate_with_direct_access)
|
||||
? define_variables
|
||||
: declare_variables),
|
||||
((code & generate_with_icache)
|
||||
? get_values_from_icache
|
||||
: do_not_use_icache));
|
||||
|
||||
lf_printf(file, "%sinstruction_address nia;\n", global_name_prefix);
|
||||
print_semantic_body(file,
|
||||
instruction,
|
||||
expanded_bits,
|
||||
opcodes);
|
||||
lf_printf(file, "return nia;\n");
|
||||
|
||||
|
||||
lf_printf (file, "{\n");
|
||||
lf_indent (file, +2);
|
||||
|
||||
print_my_defines (file,
|
||||
instruction->name,
|
||||
instruction->format_name,
|
||||
expanded_bits);
|
||||
lf_printf (file, "\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),
|
||||
nr_prefetched_words);
|
||||
|
||||
lf_printf (file, "%sinstruction_address nia;\n", options.prefix.global.name);
|
||||
print_semantic_body (file,
|
||||
instruction,
|
||||
expanded_bits,
|
||||
opcodes);
|
||||
lf_printf (file, "return nia;\n");
|
||||
|
||||
/* generate something to clean up any #defines created for the cache */
|
||||
if (code & generate_with_direct_access)
|
||||
print_icache_body(file,
|
||||
instruction,
|
||||
expanded_bits,
|
||||
cache_rules,
|
||||
undef_variables,
|
||||
((code & generate_with_icache)
|
||||
? get_values_from_icache
|
||||
: do_not_use_icache));
|
||||
|
||||
lf_indent(file, -2);
|
||||
lf_printf(file, "}\n");
|
||||
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),
|
||||
nr_prefetched_words);
|
||||
}
|
||||
|
||||
lf_indent (file, -2);
|
||||
lf_printf (file, "}\n");
|
||||
}
|
||||
|
||||
static void
|
||||
print_c_semantic_function(lf *file,
|
||||
insn *instruction,
|
||||
insn_bits *expanded_bits,
|
||||
opcode_field *opcodes,
|
||||
cache_table *cache_rules)
|
||||
print_c_semantic_function (lf *file,
|
||||
insn_entry *instruction,
|
||||
opcode_bits *expanded_bits,
|
||||
insn_opcodes *opcodes,
|
||||
cache_entry *cache_rules,
|
||||
int nr_prefetched_words)
|
||||
{
|
||||
/* build the semantic routine to execute the instruction */
|
||||
print_semantic_function_header(file,
|
||||
instruction->file_entry->fields[insn_name],
|
||||
expanded_bits,
|
||||
1/*is-function-definition*/);
|
||||
print_c_semantic(file,
|
||||
instruction,
|
||||
expanded_bits,
|
||||
opcodes,
|
||||
cache_rules);
|
||||
print_semantic_function_header (file,
|
||||
instruction->name,
|
||||
instruction->format_name,
|
||||
expanded_bits,
|
||||
1/*is-function-definition*/,
|
||||
nr_prefetched_words);
|
||||
print_c_semantic (file,
|
||||
instruction,
|
||||
expanded_bits,
|
||||
opcodes,
|
||||
cache_rules,
|
||||
nr_prefetched_words);
|
||||
}
|
||||
|
||||
void
|
||||
print_semantic_definition(insn_table *entry,
|
||||
lf *file,
|
||||
void *data,
|
||||
insn *instruction,
|
||||
int depth)
|
||||
print_semantic_definition (lf *file,
|
||||
insn_entry *insn,
|
||||
opcode_bits *expanded_bits,
|
||||
insn_opcodes *opcodes,
|
||||
cache_entry *cache_rules,
|
||||
int nr_prefetched_words)
|
||||
{
|
||||
cache_table *cache_rules = (cache_table*)data;
|
||||
if (generate_expanded_instructions) {
|
||||
ASSERT(entry->nr_insn == 1
|
||||
&& entry->opcode == NULL
|
||||
&& entry->parent != NULL
|
||||
&& entry->parent->opcode != NULL);
|
||||
ASSERT(entry->nr_insn == 1
|
||||
&& entry->opcode == NULL
|
||||
&& entry->parent != NULL
|
||||
&& entry->parent->opcode != NULL
|
||||
&& entry->parent->opcode_rule != NULL);
|
||||
print_c_semantic_function(file,
|
||||
entry->insns,
|
||||
entry->expanded_bits,
|
||||
entry->parent->opcode,
|
||||
cache_rules);
|
||||
}
|
||||
else {
|
||||
print_c_semantic_function(file, instruction,
|
||||
NULL, NULL,
|
||||
cache_rules);
|
||||
}
|
||||
print_c_semantic_function (file,
|
||||
insn,
|
||||
expanded_bits,
|
||||
opcodes,
|
||||
cache_rules,
|
||||
nr_prefetched_words);
|
||||
}
|
||||
|
||||
|
||||
|
||||
Reference in New Issue
Block a user