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-rw-r--r--sim/ppc/gen-semantics.c253
1 files changed, 0 insertions, 253 deletions
diff --git a/sim/ppc/gen-semantics.c b/sim/ppc/gen-semantics.c
deleted file mode 100644
index 5fda23a..0000000
--- a/sim/ppc/gen-semantics.c
+++ /dev/null
@@ -1,253 +0,0 @@
-/* This file is part of the program psim.
-
- Copyright (C) 1994-1995, 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 "ld-decode.h"
-#include "ld-cache.h"
-#include "ld-insn.h"
-
-#include "igen.h"
-
-#include "gen-semantics.h"
-#include "gen-icache.h"
-#include "gen-idecode.h"
-
-
-static void
-print_semantic_function_header(lf *file,
- const char *basename,
- insn_bits *expanded_bits,
- int is_function_definition)
-{
- int indent;
- lf_printf(file, "\n");
- lf_print_function_type(file, SEMANTIC_FUNCTION_TYPE, "EXTERN_SEMANTICS",
- (is_function_definition ? "\n" : " "));
- indent = print_function_name(file,
- basename,
- expanded_bits,
- function_name_prefix_semantics);
- if (is_function_definition)
- lf_indent(file, +indent);
- else
- lf_printf(file, "\n");
- lf_printf(file, "(%s)", SEMANTIC_FUNCTION_FORMAL);
- if (is_function_definition)
- lf_indent(file, -indent);
- else
- lf_printf(file, ";");
- lf_printf(file, "\n");
-}
-
-void
-print_semantic_declaration(insn_table *entry,
- lf *file,
- void *data,
- insn *instruction,
- int depth)
-{
- if (generate_expanded_instructions) {
- ASSERT(entry->nr_insn == 1);
- print_semantic_function_header(file,
- instruction->file_entry->fields[insn_name],
- entry->expanded_bits,
- 0/* is not function definition*/);
- }
- else {
- print_semantic_function_header(file,
- instruction->file_entry->fields[insn_name],
- NULL,
- 0/* is not function definition*/);
- }
-}
-
-
-
-/* generate the semantics.c file */
-
-
-void
-print_idecode_illegal(lf *file,
- const char *result)
-{
- if ((code & generate_jumps))
- lf_printf(file, "goto %s_illegal;\n", (code & generate_with_icache) ? "icache" : "semantic");
- else if ((code & generate_with_icache))
- lf_printf(file, "%s icache_illegal(%s);\n", result, ICACHE_FUNCTION_ACTUAL);
- else
- lf_printf(file, "%s semantic_illegal(%s);\n", result, SEMANTIC_FUNCTION_ACTUAL);
-}
-
-
-void
-print_semantic_body(lf *file,
- insn *instruction,
- insn_bits *expanded_bits,
- opcode_field *opcodes)
-{
- print_itrace(file, instruction->file_entry, 0/*put_value_in_cache*/);
-
- /* validate the instruction, if a cache this has already been done */
- if (!(code & generate_with_icache))
- print_idecode_validate(file, instruction, opcodes);
-
- /* generate the profiling call - this is delayed until after the
- instruction has been verified */
- lf_printf(file, "\n");
- lf_printf(file, "/* monitoring: */\n");
- lf_printf(file, "if (WITH_MON & MONITOR_INSTRUCTION_ISSUE) {\n");
- lf_printf(file, " mon_issue(");
- print_function_name(file,
- instruction->file_entry->fields[insn_name],
- NULL,
- function_name_prefix_itable);
- lf_printf(file, ", processor, cia);\n");
- lf_printf(file, "}\n");
-
- /* generate the code (or at least something */
- lf_printf(file, "\n");
- lf_printf(file, "/* semantics: */\n");
- lf_printf(file, "nia = cia + %d;\n", insn_bit_size / 8);
- if (instruction->file_entry->annex != NULL) {
- /* true code */
- table_entry_print_cpp_line_nr(file, instruction->file_entry);
- lf_printf(file, "{\n");
- lf_indent(file, +2);
- lf_print__c_code(file, instruction->file_entry->annex);
- lf_indent(file, -2);
- lf_printf(file, "}\n");
- lf_print__internal_reference(file);
- }
- else if (it_is("nop", instruction->file_entry->fields[insn_flags])) {
- lf_print__internal_reference(file);
- }
- else if (it_is("f", instruction->file_entry->fields[insn_flags])) {
- /* unimplemented floating point instruction - call for assistance */
- lf_printf(file, "/* unimplemented floating point instruction - call for assistance */\n");
- table_entry_print_cpp_line_nr(file, instruction->file_entry);
- lf_putstr(file, "floating_point_assist_interrupt(processor, cia);\n");
- lf_print__internal_reference(file);
- }
- else {
- /* abort so it is implemented now */
- table_entry_print_cpp_line_nr(file, instruction->file_entry);
- lf_putstr(file, "error(\"%s:%d:0x%08lx:%s unimplemented\\n\",\n");
- lf_printf(file, " itable[MY_INDEX].file, itable[MY_INDEX].line_nr, (long)cia, itable[MY_INDEX].name);\n");
- lf_print__internal_reference(file);
- }
-}
-
-static void
-print_c_semantic(lf *file,
- insn *instruction,
- insn_bits *expanded_bits,
- opcode_field *opcodes,
- cache_table *cache_rules)
-{
-
- lf_printf(file, "{\n");
- lf_indent(file, +2);
-
- print_define_my_index(file, instruction->file_entry);
- lf_printf(file, "\n");
- print_icache_body(file,
- instruction,
- expanded_bits,
- cache_rules,
- (code & generate_with_direct_access_icache),
- (code & generate_with_icache)/*get_value_from_cache*/,
- 0/*put_value_in_cache*/);
-
- lf_printf(file, "unsigned_word nia;\n");
- 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_icache))
- print_icache_body(file,
- instruction,
- expanded_bits,
- cache_rules,
- 1/*use_defines*/,
- 0/*get_value_from_cache*/,
- 1/*put_value_in_cache*/);
-
- 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)
-{
- /* 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);
-}
-
-void
-print_semantic_definition(insn_table *entry,
- lf *file,
- void *data,
- insn *instruction,
- int depth)
-{
- 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);
- }
-}
generated by cgit v1.1 at 2024-12-10 15:50:59 +0000