sim/igen/ChangeLog

   1 2002-11-21  Andrew Cagney  <ac131313@redhat.com>
   2
   3         * Makefile.in: Update copyright.  IGEN contributed to the FSF.
   4         * filter.c, filter.h, filter_host.c, filter_host.h: Ditto.
   5         * gen-engine.c, gen-engine.h, gen-icache.c, gen-icache.h: Ditto.
   6         * gen-idecode.c, gen-idecode.h, gen-itable.c: Ditto.
   7         * gen-itable.h, gen-model.c, gen-model.h, gen-semantics.c: Ditto.
   8         * gen-semantics.h, gen-support.c, gen-support.h, gen.c: Ditto.
   9         * gen.h, igen.c, igen.h, ld-cache.c, ld-cache.h: Ditto.
  10         * ld-decode.c, ld-decode.h, ld-insn.c, ld-insn.h, lf.c: Ditto.
  11         * lf.h, misc.c, misc.h, table.c, table.h: Ditto.
  12
  13 2002-11-06  Richard Sandiford  <rsandifo@redhat.com>
  14
  15         * gen-engine.c (print_engine_issue_prefix_hook): Don't add the
  16         global prefix to ENGINE_ISSUE_PREFIX_HOOK.
  17         (print_engine_issue_postfix_hook): Likewise ENGINE_ISSUE_POSTFIX_HOOK.
  18
  19 2002-08-28  Dave Brolley  <brolley@redhat.com>
  20
  21         * gen-support.c (gen_support_h): Generate
  22         '#define semantic_illegal <PREFIX>_semantic_illegal'.
  23
  24 2002-08-22  Chris Demetriou  <cgd@broadcom.com>
  25
  26         * compare_igen_models: New script.
  27
  28 2002-06-17  Andrew Cagney  <cagney@redhat.com>
  29
  30         * gen.c (gen_entry_expand_opcode): Initialize ``value'' to -1 and
  31         ``t'' to NULL.
  32         * igen.c (main): Add default case to switch.
  33         * gen-icache.c (print_icache_extraction): Ditto.
  34
  35 2002-06-17  Andrew Cagney  <cagney@redhat.com>
  36
  37         * Makefile.in (BUILD_CFLAGS): Remove -O0.
  38
  39 2002-06-16  Andrew Cagney  <ac131313@redhat.com>
  40
  41         * configure: Regenerated to track ../common/aclocal.m4 changes.
  42
  43 2002-06-03  Richard Henderson  <rth@redhat.com>
  44
  45         * gen-engine.c (print_run_body): Avoid multi-line strings.
  46         * lf.c (lf_print__gnu_copyleft): Likewise.
  47
  48 2002-05-01  Chris Demetriou  <cgd@broadcom.com>
  49
  50         * igen.c: Use 'deprecated' rather than 'depreciated.'
  51
  52 2002-03-23  Andrew Cagney  <ac131313@redhat.com>
  53
  54         * gen.c (format_name_cmp): New function.
  55         (insn_list_insert): Use the instruction field name as an
  56         additional key.  Different field names indicate different
  57         semantics.
  58
  59 2002-03-07  Chris Demetriou  <cgd@broadcom.com>
  60
  61         * igen.c (print_itrace_format): Add support for a new "%#lx" format.
  62
  63 Tue May 23 21:39:23 2000  Andrew Cagney  <cagney@b1.cygnus.com>
  64
  65         * configure: Regenerated to track ../common/aclocal.m4 changes.
  66
  67 2000-04-12  Frank Ch. Eigler  <fche@redhat.com>
  68
  69         * gen-semantics.c (print_semantic_body): Use GPR_CLEAR(N) instead
  70         of GPR_SET(N,0) for gen-zero-rN.
  71
  72 Thu Sep  2 18:15:53 1999  Andrew Cagney  <cagney@b1.cygnus.com>
  73
  74         * Makefile.in (SIM_WARNINGS): Replace this with.
  75         (IGEN_WERROR_CFLAGS, IGEN_WARN_CFLAGS, WERROR_CFLAGS,
  76         WARN_CFLAGS): With these.
  77         (BUILD_CFLAGS): Update.
  78
  79         * configure: Regenerated to track ../common/aclocal.m4 changes.
  80
  81 1999-05-08  Felix Lee  <flee@cygnus.com>
  82
  83         * configure: Regenerated to track ../common/aclocal.m4 changes.
  84
  85 Fri Dec  4 15:14:09 1998  Andrew Cagney  <cagney@b1.cygnus.com>
  86
  87         * igen.c (main): Fix -Pitable=.
  88
  89         * gen-engine.c (print_run_body): Prefix instruction_address.
  90
  91 Wed Oct 28 18:12:43 1998  Andrew Cagney  <cagney@b1.cygnus.com>
  92
  93         * Makefile.in (SIM_WARNINGS): Update to match ../common/aclocal.m4
  94         changes.
  95
  96 Wed Aug 12 10:55:28 1998  Frank Ch. Eigler  <fche@cygnus.com>
  97
  98         * gen-icache.c (print_icache_extraction): #undef a generated
  99         symbol before #define'ing it, to remove conflict with system
 100         macros.
 101
 102 Wed Jul 29 10:07:27 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 103
 104         * gen.c (gen_entry_expand_opcode): For conditional, fields.  Fix
 105         the extraction of the value from its source - both table and bit
 106         cases were wrong.
 107
 108 Tue Jul 28 11:19:43 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 109
 110         * ld-insn.c (parse_insn_word): For constant conditional strings,
 111         encode their bit value.
 112
 113         * ld-insn.c (parse_insn_word, parse_insn_words): Allow conditional
 114         operands to refer to fields in earlier instruction words.
 115
 116         * gen.c (sub_val): Replace field argument with val_last_pos.
 117         (gen_entry_expand_opcode): Look in previous tables for a value for
 118         a conditional field as well as the bits from the current table.
 119         (insn_list_insert): Add sort key of instructions where
 120         their operand fields have different conditionals.
 121         (insn_field_cmp): New function.
 122
 123 Sun Apr 26 15:31:55 1998  Tom Tromey  <tromey@creche>
 124
 125         * configure: Regenerated to track ../common/aclocal.m4 changes.
 126         * config.in: Ditto.
 127
 128 Sun Apr 26 15:20:08 1998  Tom Tromey  <tromey@cygnus.com>
 129
 130         * acconfig.h: New file.
 131         * configure.in: Reverted change of Apr 24; use sinclude again.
 132
 133 Fri Apr 24 14:16:40 1998  Tom Tromey  <tromey@creche>
 134
 135         * configure: Regenerated to track ../common/aclocal.m4 changes.
 136         * config.in: Ditto.
 137
 138 Fri Apr 24 11:19:33 1998  Tom Tromey  <tromey@cygnus.com>
 139
 140         * configure.in: Don't call sinclude.
 141
 142 Fri Apr 24 19:45:00 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 143
 144         * gen-icache.c (print_icache_extraction): Do not type cast
 145         pointers.
 146
 147         * ld-insn.c (load_insn_table): Terminate error with NL.
 148
 149         * gen.c (insns_bit_useless): Perform unsigned bit comparisons.
 150
 151         * filter.c (is_filtered_out, filter_parse): Pacify GCC, len is
 152         unsigned.
 153
 154 Wed Apr 22 14:27:39 1998  Michael Meissner  <meissner@cygnus.com>
 155
 156         * configure: Reconfigure to pick up ../common/aclocal.m4 changes
 157         to suppress inlining by default.
 158
 159 Tue Apr 21 01:37:54 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 160
 161         * gen-icache.c (print_icache_extraction): When generating #define
 162         force the expression to the correct type.
 163
 164 Thu Apr 16 08:50:29 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 165
 166         * misc.c (name2i): strlen returns an unsigned.
 167
 168 Tue Apr 14 19:04:28 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 169
 170         * igen.h (struct igen_warn_options): Add unimplemented option.
 171         * igen.c (main): Update
 172
 173         * ld-insn.c (load_insn_table): Report unimplemented functions.
 174
 175 Tue Apr 14 10:57:26 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 176
 177         * ld-insn.c (parse_insn_word): Treat `!' and `=' as valid
 178         separator tokens when parsing a conditional.
 179
 180         * igen.h (main): Add option -S so that suffix can be specified.
 181
 182 Tue Apr 14 08:44:53 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 183
 184         * igen.h (struct igen_trace_options): Add members insn_expansion
 185         and insn_insertion.
 186
 187         * igen.c (main): Add options -Gtrace-insn-expansion,
 188         -Gtrace-insn-insertion and -Gtrace-all.
 189
 190         * gen.c (gen_entry_expand_insns): Trace each instruction as it is
 191         selected for expansion.
 192         (gen_entry_expand_opcode): Trace each expanded instruction as it
 193         is inserted into the table.
 194
 195 Mon Apr 13 19:21:47 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 196
 197         * ld-insn.c (parse_insn_word): Parse conditional operators.
 198         (parse_insn_word): Verify field conditionals.
 199
 200         * ld-insn.h: Extend syntax to allow macros and field equality.
 201         (struct insn_field_cond): Rename insn_field_exclusion, add type.
 202
 203         * gen.c (gen_entry_expand_opcode): Check type of conditional.
 204         (insns_bit_useless): Ditto.
 205
 206         * ld-insn.c (parse_macro_record): New function.
 207
 208 Mon Apr 13 22:37:47 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 209
 210         * ld-insn.h (enum insn_field_type): Add insn_field_invalid.
 211
 212         * ld-insn.c (parse_insn_word): Check instruction field type
 213         correctly initialized.
 214         (print_insn_words): Ditto.
 215         (insn_field_type_to_str): Ditto.
 216         (dump_insn_field): Ditto.
 217
 218         * gen.c (insns_bit_useless): Ditto.
 219
 220 Fri Apr  3 18:08:16 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 221
 222         * gen.h, igen.c (print_include_inline, print_includes,
 223         print_includes): New functions.  Generate include list.  For for
 224         semantics et.al. generate CPP code to inline when
 225         C_REVEALS_MODULE_P.
 226
 227         * igen.c (gen_semantics_c): Call print_includes.
 228         * gen-engine.c (gen_engine_c): Ditto.
 229
 230 Sat Apr  4 21:09:11 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 231
 232         * igen.h: (struct _igen_name_option): Replace with struct
 233         igen_module_option. Contains both module prefix and suffix.
 234         (INIT_OPTIONS): Initialize.
 235
 236         * igen.c (main): Update -P option to fill in full module info.
 237         (gen-engine.c, gen-icache.c, gen-itable.c, gen-semantics.c,
 238         gen-support.c): Update.
 239
 240 Sat Apr  4 02:15:35 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 241
 242         * igen.c (print_itrace): Use TRACE_ANY_P macro to determine if any
 243         tracing is needed.
 244
 245 Thu Mar 26 20:51:23 1998  Stu Grossman  <grossman@bhuna.cygnus.co.uk>
 246
 247         * table.c (table_push):  Redo, using stdio.  Fixes NT native
 248         problem with <CRLF>=><LF> translation...
 249
 250 Tue Mar 24 23:30:07 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 251
 252         * gen-engine.c (print_run_body): Re-extract the CIA after
 253         processing any events.
 254
 255 Tue Mar 24 17:46:08 1998  Stu Grossman  <grossman@bhuna.cygnus.co.uk>
 256
 257         * Makefile.in:  Get SHELL from configure.
 258         * configure:  Regenerate with autoconf 2.12.1 to fix shell issues for
 259         NT native builds.
 260
 261 Mon Mar 16 12:51:31 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 262
 263         * igen.c: Pass sim_cia to trace_prefix.
 264
 265 Thu Feb 26 19:25:02 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 266
 267         * ld-insn.c (parse_function_record): Check models are valid.
 268         (parse_function_record): Only discard function when no model is
 269         common.
 270
 271 Tue Feb 24 01:42:03 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 272
 273         * gen-engine.c (print_run_body): Always wrap generated idecode
 274         body in ENGINE_ISSUE_PREFIX_HOOK / ENGINE_ISSUE_POSTFIX_HOOK.
 275
 276 Fri Feb 20 16:22:10 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 277
 278         * ld-insn.c (parse_function_record): When -Wnodiscard, suppress
 279         discarded function warning.
 280
 281         * igen.c (main): Clarify -Wnodiscard.
 282
 283         * ld-insn.c (parse_function_record): For functions, allow use of
 284         instruction style function model records
 285
 286         * ld-insn.h (nr_function_model_fields): Define.
 287
 288 Tue Feb 17 16:36:27 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 289
 290         * igen.c (print_itrace_prefix): Generate call to trace_prefix
 291         instead of trace_one_insn.
 292         (print_itrace): Generate trace_prefix call if any tracing enabled,
 293         (print_itrace): Nest generated call to trace_generic inside
 294         conditional for any tracing enabled.
 295         (print_itrace_prefix): Do not pass PHASE to trace_prefix.
 296
 297 Tue Feb  3 14:00:32 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 298
 299         * gen-engine.c (print_run_body): Add bitsize suffix to IMEM macro.
 300         * gen-icache.c (print_icache_body): Ditto.
 301         * gen-idecode.c (print_idecode_ifetch): Ditto.
 302
 303         * gen-icache.c (print_icache_body): Mark successive instruction
 304         words as unused.
 305
 306         * ld-insn.c (parse_insn_word): Only report insn-width problems
 307         when warning enabled.
 308
 309         * igen.h: Add flag for warning about invalid instruction widths.
 310         * igen.c: Parse -Wwidth option.
 311
 312         * gen-support.c (gen_support_h): Map instruction_word onto
 313         <PREFIX>_instruction_word when needed.
 314         (print_support_function_name): Use support prefix.
 315         (gen_support_h): Ditto for <PREFIX>_idecode_issue.
 316
 317 Sun Feb  1 11:08:48 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 318
 319         * gen-support.c (gen_support_h): Generate new macro CPU_.
 320
 321 Sat Jan 31 14:50:27 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 322
 323         * gen-engine.c (gen_engine_h): Don't assume a model is present.
 324         (gen_engine_c): Ditto.
 325
 326         * igen.c (gen_run_c): Ditto.
 327
 328         * gen-engine.c (print_run_body): Use CIA_GET & CIA_SET instead of
 329         CPU_CIA.  Parameterize with CPU argument.
 330
 331 Fri Jan 30 09:09:39 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 332
 333         * gen.h (struct _gen_list): Replace processor with model.
 334
 335         * igen.c (gen_idecode_h): Update.
 336         (gen_run_c): For generated switch, use model->full_name.
 337
 338         * gen.c (print_gen_entry_path): Ditto.
 339         (make_table):  Ditto.
 340         (gen_entry_expand_insns):  Ditto.
 341         (make_gen_tables):  Ditto.
 342
 343         * igen.c (gen_run_c): Add extra argument `nr_cpus' to generated
 344         function sim_engine_run.  Pass argument on to engine_run.
 345
 346         * gen-engine.c (print_engine_run_function_header): Add extra
 347         argument `nr_cpus' to generated function engine_run.
 348         (print_run_body): Fix SMP case.
 349
 350         * gen-support.c (support_c_function): Call sim_engine_abort when
 351         internal function fails to long jump.
 352
 353 Wed Jan 21 18:00:22 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 354
 355         * gen-semantics.c (print_semantic_body): Use GPR_SET to zero
 356         hardwired register.
 357
 358 Wed Dec 17 14:49:03 1997  Jeffrey A Law  (law@cygnus.com)
 359
 360         * gen-semantics.c (print_semantic_body): Fix handling of
 361         hardwired zero register.
 362
 363 Tue Dec  9 12:45:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 364
 365         * igen.h (struct _igen_gen_options): Add member default_model.
 366
 367         * igen.c (gen_run_c): Default to the first machine in the
 368         multi-sim list.
 369         (main): Add MODEL parameter to gen-multi-sim option.
 370
 371         * gen.h (function_decl_type): Declare enum.
 372
 373         * gen-engine.c (print_engine_run_function_header), gen-engine.h:
 374         Make global, pass function_decl_type as argument.
 375         (gen_engine_h, gen_engine_c): Update call.
 376
 377         * gen-idecode.c (print_idecode_issue_function_header),
 378         gen-idecode.h: Pass function_decl_type as argument.
 379
 380         * igen.c (gen_idecode_h): For multi-sim, delcare global variable
 381         idecode_issue.
 382
 383         * igen.c (gen_run_c): For multi-sim, initialize globals
 384         idecode_issue and engine_run.
 385
 386 Fri Nov 14 10:51:44 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 387
 388         * ld-insn.c (parse_insn_model_record): Allow multiple model names
 389         to be specified in a single instruction model record.
 390         (dump_insn_model_entry): Update.
 391
 392         * ld-insn.h (struct _insn_model_entry): Replace member name with
 393         the filter names.  Document syntax change.
 394
 395 Wed Nov 12 15:45:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 396
 397         * gen-engine.c (print_run_body): Add hooks for adding code before
 398         and after an instruction has been issued.
 399
 400 1997-11-04  Brendan Kehoe  <brendan@lisa.cygnus.com>
 401
 402         * gen-idecode.c (print_jump_until_stop_body): Use `#if 0' instead of
 403         `#ifdef 0' around this.
 404
 405 Tue Nov  4 08:18:29 1997  Michael Meissner  <meissner@cygnus.com>
 406
 407         * ld-decode.c (load_decode_table): Don't assume NULL is an integer
 408         constant.
 409
 410 Wed Oct 29 13:17:17 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 411
 412         * ld-insn.h: Document mnemonic string format.
 413
 414 Tue Oct 28 10:50:35 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 415
 416         * gen-icache.c (print_icache_extraction): Force result of atol to
 417         unsigned.
 418
 419         * ld-insn.c (parse_function_record): Separate handling of old and
 420         ney fynction records.
 421         (load_insn_table): For %s record, hack function name & type after
 422         it has been parsed.
 423
 424         * filter.h (filter_is_subset): Reverse argument names, wrong
 425         order.
 426
 427         * ld-insn.c (load_insn_table): Move include code to.
 428         (parse_include_record): New function.  Check for filtering of
 429         include statement by both flags and models.
 430         (load_insn_table): Check for model filtering of cache and model
 431         records.
 432         (parse_model_data_record): Check for model & flag filtering of
 433         model data records.
 434         (parse_function_record): Check for model & flag filtering of
 435         function records.
 436
 437         * ld-insn.h: Define record_filter_models_field.  Add filter-models
 438         field to all but instruction records.
 439         (struct _function_entry, struct _cache_entry): Add models field.
 440         (nr_function_fields): Make parm field mandatory.
 441
 442 Mon Oct 27 15:14:26 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 443
 444         * igen.c (main): Change -I option to -I<directory>.  Add optional
 445         size to -Ggen-icache option.  Add -Gno-... support.
 446
 447         * igen.h (struct _igen_options): Add include field.
 448
 449         * ld-insn.c (enum insn_record_type, insn_type_map): Add
 450         include_record.
 451         (load_insn_table): Call table_push when include record.
 452
 453         * table.c (struct _open table, struct table): Make table object an
 454         indirect ptr to the current table file.
 455         (current_line, new_table_entry, next_line): Make file arg type
 456         open_table.
 457         (table_open): Use table_push.
 458         (table_read): Point variable file at current table, at eof, pop
 459         last open table.
 460
 461         * table.h, table.c (table_push): New function.
 462
 463 Thu Oct 16 11:03:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 464
 465         * gen-semantics.c (print_semantic_body): Use CIA not
 466         cia.ip. Escape newlines at end of generated call to
 467         sim_engine_abort.
 468
 469 Tue Oct 14 11:13:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 470
 471         * igen.c (print_itrace): Output line-ref to igen source file when
 472         generating trace statements.
 473         (print_itrace_prefix, print_itrace_format): Escape newline at end
 474         of each line of generated call to trace function.
 475
 476 Mon Oct 13 11:27:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 477
 478         * gen-support.c (gen_support_h): Generate #define NIA. Definition
 479         dependant on gen-delayed-branch mode.
 480
 481         * ld-insn.c (parse_insn_mnemonic_record): Check for opening and
 482         closing double quote in mnemonic field.
 483         (parse_option_record): Add gen-delayed-branch option.
 484
 485 Wed Oct  8 13:10:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 486
 487         * gen.c (insn_list_insert): Missing \n in warning.
 488
 489         * ld-insn.c (load_insn_table): Only notify of discarded
 490         instrctions when warn.discard enabled.
 491
 492         * igen.h: Add option.warn.discard, default enabled.
 493
 494         * igen.c (main): Add -Wnodiscard option.
 495
 496         * ld-insn.c (record_type): For old record type, check the number
 497         of fields is correct.
 498         (load_insn_table): Allow insn assembler and insn model records to
 499         appear in any order.
 500         (parse_insn_model_record): Rename from parse_insn_model_records.
 501         Parse only one record.
 502         (parse_insn_mnemonic_record): Rename from
 503         parse_insn_mnemonic_records.  Parse only one record.
 504
 505 Tue Sep 23 15:52:06 1997  Felix Lee  <flee@yin.cygnus.com>
 506
 507         * gen-itable.c (gen_itable_h): [nr_itable_* + 1] to avoid
 508         illegal zero-sized array.
 509         (itable_print_set): likewise, avoid empty initializers.
 510
 511 Mon Sep 22 18:49:07 1997  Felix Lee  <flee@cygnus.com>
 512
 513         * configure.in: i386-windows is a cross, so don't expect
 514         libiberty to be there.
 515         * configure: updated.
 516
 517 Fri Sep 19 10:36:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 518
 519         * igen.c (print_function_name): Put the format name after the
 520         function / instruction name, not before.
 521         (print_itrace): Better format trace code.
 522
 523 Tue Sep 16 11:01:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 524
 525         * gen.c (insns_bit_useless): Don't treat string fields restricted
 526         to a range of values as useless.
 527
 528 Mon Sep 15 15:47:21 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 529
 530         * igen.c (gen_run_c): Handle non-multi-sim case.
 531
 532         * gen-support.c (gen_support_h): Define SD_ - to replace _SD.
 533         Define CIA from cia.
 534
 535 Thu Sep 11 10:27:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 536
 537         * gen-semantics.c (print_semantic_body): Trace the instruction
 538         after it has been validated.
 539         (print_semantic_body): Count the instruction using sim-profile.
 540
 541 Wed Sep 10 13:35:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 542
 543         * gen-itable.c (gen_itable_h): Collect summary info on instruction
 544         table when traversing it.
 545         (gen_itable_h): Output an enum defining the max size of each of
 546         the itable string members.
 547
 548 Tue Sep  9 03:30:26 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 549
 550         * igen.c (gen_run_c): New function. Generate sim_engine_run that
 551         looks at the currently selected architecture.
 552
 553         * gen-engine.c, gen-idecode.c: Add multi-sim support - generate
 554         one engine per model.
 555
 556         * gen-semantics.c, gen-icache.c gen-support.c:
 557         Update.
 558
 559         * ld-insn.h, ld-insn-h (load_insn_table): Rewrite.  table.h only
 560         returns a line at a time.  Parse multi-word instructions.  Add
 561         multi-sim support.
 562
 563         * table.h, table.c: Simplify.  Only parse a single line at a time.
 564         ld-insn can handle the rest.
 565
 566         * filter.h, filter.c (filter_parse, filter_add, filter_is_subset,
 567         filter_is_common, filter_is_member, filter_next): New filter
 568         operations.
 569         (dump_filter): Ditto.
 570
 571         * gen.h, gen.c: New file.  Takes the insn table and turns it into
 572         a set of decode tables and semantic functions.
 573
 574         * ld-insn.c: Copy generator code from here.
 575         * gen.c: To here.
 576
 577 Fri Aug  8 11:43:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 578
 579         * misc.h (NZALLOC): Allocate an N element array of TYPE.
 580
 581         * table.h, table.c: Simplify table parser so that it only
 582         understands colon delimited lines and code blocks.
 583         (table_read): Parse '{' ... '}' as a code block.
 584         (table_print_code): New function, print out a code block to file.
 585         (main): Add suport for standalone testing.
 586
 587         * ld-insn.h, ld-insn.c:
 588
 589
 590 Mon Sep  1 11:41:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 591
 592         * gen-idecode.c (error_leaf_contains_multiple_insn): Make static.
 593         (print_jump_definition, print_jump, print_jump_internal_function,
 594         print_jump_insn, print_jump_until_stop_body): Delete, moved to
 595         sim-engine.c
 596
 597         * igen.c (print_itrace_format): Delete unused variable chp.
 598         (gen-engine.h): Include.
 599
 600         * table.c (current_file_name, current_line_entry,
 601         current_line_entry): Make static.
 602
 603 Wed Aug  6 12:31:17 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 604
 605         * configure.in: Define AR_FOR_BUILD, AR_FLAGS_FOR_BUILD,
 606         RANLIB_FOR_BUILD and CFLAGS_FOR_BUILD.
 607         * configure.in: Include simulator common/aclocal.m4.
 608         * configure.in: Add --enable-sim-warnings option.
 609         * configure: Re-generate.
 610
 611         * Makefile.in: Use.
 612
 613         * Makefile.in (tmp-filter): New rule.
 614         (igen.o, tmp-table, tmp-ld-decode, tmp-ld-cache, tmp-ld-insn,
 615         ld-decode.o, ld-cache.o, ld-insn.o): Fix dependencies.
 616
 617         * gen.h, gen.c: New files.
 618
 619         * Makefile.in (gen.o, tmp-gen): New rules, update all
 620         dependencies.
 621
 622 Tue Jun 24 11:46:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 623
 624         * ld-insn.c (load_insn_table): Accept %s as a function type.
 625
 626 Thu Jun  5 17:14:32 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 627
 628         * igen.c (print_itrace_prefix): Move printing of insn prefix to
 629         here.
 630         (print_itrace_format): Drop printing of MY_NAME in instruction
 631         trace.  Printing of insn prefix moved.
 632         (print_itrace): Ditto.
 633
 634 Fri May 30 11:27:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 635
 636         * gen-icache.c (print_icache_function_header): Pass
 637         table_line_entry instead of separate file and line.
 638
 639         * table.c (table_entry_read): Set assembler source file/line-nr to
 640         the current not initial file.
 641         (table_entry_read): Fix line numbering of source files.
 642
 643         table.h (table_line_entry): New structure.  Exactly specifies a
 644         source file/line-nr.
 645         (table_*_entry): Add this to all.
 646
 647         table.c (table_entry_print_cpp_line_nr): Change to use values from
 648         a table_line_entry struct.
 649         (table_entry_read): Save table_line_entry in all structures read.
 650
 651         gen-icache.c, gen-support.c, gen-idecode.c, gen-semantics.c,
 652         gen-model.c: Update all references.
 653
 654 Thu May 29 10:29:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 655
 656         * igen.c (print_my_defines): Define MY_NAME - a string.  For
 657         MY_PREFIX, undefine the name of the function incase some dumb
 658         header defined it.  it.
 659         (print_itrace): Use MY_NAME not MY_PREFIX.
 660
 661         * lf.c (lf_write): New function write an N character buffer to the
 662         file.
 663
 664         * igen.c (print_itrace): When available, use the assembler to
 665         print the insn-trace.
 666         (print_itrace_prefix): New function, print first part of call to
 667         print_one_insn.
 668         (print_itrace_format): New function, print fmt argument for
 669         print_one_insn.
 670
 671         * table.c (table_entry_read): Save any assembler lines instead of
 672         discarding them.
 673
 674 Wed May 28 09:55:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 675
 676         * gen-icache.c (print_icache_body): Process immeds.
 677
 678         * gen-semantics.c (print_semantic_body): When computing NIA, skip
 679         any immed words that follow the instruction word.
 680
 681         * ld-insn.c (parse_insn_format): Parse immeds appended to an
 682         instruction.
 683
 684         * igen.c (main): Allow any register to be specified as the zero
 685         register.
 686         (semantic_zero_reg): Global, index to zero register.
 687
 688         * gen-semantics.c (print_semantic_body): Zero selected register.
 689
 690 Tue May 27 14:12:32 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 691
 692         * igen.h: Stop options and code gen type bit masks overlaping.
 693
 694 Fri May 23 12:01:08 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 695
 696         * gen-semantics.c (print_semantic_body): Incorrect test for
 697         zero-r0 code.
 698
 699 Fri May 16 14:32:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 700
 701         * gen-semantics.c (print_semantic_body): Use common sim-engine
 702         interface.
 703
 704 Fri May 16 11:48:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 705
 706         * gen-semantics.c (print_semantic_body): Add code to clear r0.
 707
 708         * igen.c (main): Add new option zero-r0, which adds code to clear
 709         GPR(0) each cycle.
 710
 711 Wed May  7 12:31:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 712
 713         * igen.c (print_itrace): Fix so line-nr is passed to trace
 714         function.
 715
 716         * gen-idecode.c (print_idecode_validate): Correct FP code.
 717
 718         * gen-support.c (gen_support_h): Always pass MY_INDEX to support
 719         functions.
 720         (print_support_function_name): Ditto.
 721
 722 Tue May  6 06:12:04 1997  Mike Meissner  <meissner@cygnus.com>
 723
 724         * igen.c (print_itrace): Call trace_one_insn to trace
 725         instructions, rather than doing it directly.
 726
 727 Mon May  5 14:11:46 1997  Mike Meissner  <meissner@cygnus.com>
 728
 729         * gen-engine.c (engine_switch_leaf): Remove extra %s.
 730         (print_engine_floating_point_unavailable): Wrap in #ifdef
 731         UNUSED/#endif, until somebody uses it.
 732
 733         * gen-idecode.c (error_leaf_contains_multiple_insn): Remove unused
 734         variable.
 735         (print_jump_until_stop_body): Wrap in #ifdef UNUSED/#endif, until
 736         somebody uses it.
 737         (print_idecode_validate): Use long formats to print long values.
 738
 739         * gen-semantics.c (print_idecode_invalid): Set name to "unknown"
 740         if we get an unexpected type.
 741
 742 Fri May  2 13:28:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 743
 744         * igen.c (print_itrace): Pass SD as well as CPU to calls to
 745         trace_printf.
 746
 747         * gen-support.c (gen_support_h): Always pass sim_cia cia to
 748         support functions.
 749         (print_support_function_name): Ditto.
 750
 751 Wed Apr 30 17:35:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 752
 753         * gen-support.c (support_c_function): Remove unnecessary memset of
 754         cia.
 755         * gen-semantics.c (print_semantic_body): Wasn't closing
 756         generated comment.
 757
 758 Tue Apr 29 11:11:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 759
 760         * ld-insn.c (load_insn_table): Report instructions that do not
 761         have at least a format and name.
 762         (insn_table_find_opcode_field): Check progress is being made.
 763
 764         * gen-support.c (support_c_function): Report empty function body.
 765
 766 Thu Apr 24 11:43:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 767
 768         * ld-insn.c (insn_table_expand_opcode): Allow reserved fields to
 769         be broken up.
 770         (insn_table_expand_insns): Allow special rules to apply to groups
 771         of instructions when all members of the group match the special
 772         mask/value.
 773
 774         * gen-semantics.c (print_c_semantic): Ditto.
 775         * igen.c (print_semantic_function_formal): Ditto.
 776         (print_semantic_function_type): Ditto.
 777         * igen.c (print_icache_function_formal): Ditto.
 778         * gen-idecode.c (print_idecode_issue_function_body): Ditto.
 779
 780         * gen-idecode.c (gen_idecode_h): Prepend the global_prefix to the
 781         instruction_address type.
 782
 783         * gen-semantics.c (print_semantic_body): Call cpu_error when an
 784         unimplemented instruction is encountered - gives the interpreter
 785         the chance to stop correctly.
 786
 787 Wed Apr 23 20:06:36 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 788
 789         * igen.c (print_function_name): Allow dot's in instruction names.
 790
 791 Tue Apr 22 21:46:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 792
 793         * igen.c (main), igen.h: Support new option - delayed-branch -
 794         generate code to drive a delayed branch processor.
 795
 796         * gen-idecode.c (gen_idecode_h): Define instruction_address type.
 797
 798         * igen.c (print_icache_function_formal): Replace address_word with
 799         instruction_address.
 800         (print_semantic_function_formal): Ditto.
 801         (print_semantic_function_type): Ditto.
 802         * gen-idecode.c (print_idecode_issue_function_body): Ditto.
 803
 804         * gen-semantics.c (print_semantic_body): Ditto.
 805         (print_c_semantic): Ditto.
 806
 807         * gen-support.c (support_c_function): Return a zeroed CIA instead
 808         of just zero - works with any cia type.
 809
 810         * igen.c (print_itrace): For delayed branch case, print just the
 811         current instruction.
 812
 813 Thu Apr 17 07:02:33 1997  Doug Evans  <dje@canuck.cygnus.com>
 814
 815         * igen.c (print_itrace): Use TRACE_FOO_P and trace_printf.
 816
 817 Tue Apr 15 15:20:31 1997  Ian Lance Taylor  <ian@cygnus.com>
 818
 819         * Makefile.in (INSTALL): Set to @INSTALL@.
 820         (INSTALL_XFORM, INSTALL_XFORM1): Remove.
 821
 822 Mon Apr 14 16:29:34 1997  Ian Lance Taylor  <ian@cygnus.com>
 823
 824         * Makefile.in (INSTALL): Change install.sh to install-sh.
 825
 826 Wed Apr  2 18:51:20 1997  Doug Evans  <dje@canuck.cygnus.com>
 827
 828         * gen-support.c (gen_support_c): sim-state.h renamed to sim-main.h.
 829         * gen-idecode.c (gen_idecode_c): Likewise.
 830         * igen.c (gen_semantics_c): Likewise.
 831
 832 Mon Mar 24 10:10:08 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 833
 834         * gen-icache.c (print_icache_body): No longer define cpu/sd,
 835         support.h now defines CPU/SD globally.
 836
 837         * gen-model.c (gen_model_h): Ditto.
 838
 839         * gen-idecode.c (print_idecode_issue_function_body): Ditto.
 840         (print_jump): Ditto.
 841         (print_jump_until_stop_body): Ditto.
 842         (print_idecode_validate): Ditto.
 843
 844         * gen-icache.c (print_icache_body): Ditto.
 845
 846         * gen-semantics.c (print_semantic_body): Ditto.
 847
 848         * igen.c (print_semantic_function_formal): Rename cpu to sim_cpu,
 849         processor to cpu.
 850         (print_icache_function_formal): Ditto.
 851
 852         * gen-support.c (print_support_function_name): Include sd/cpu arg
 853         in support function argument list.
 854         (support_c_function): Generate code to cpu/sd from sd/cpu.
 855         (gen_support_h): Define _SD the argument prefix for all support
 856         functions.  Define SD/CPU to determine sd/cpu from value of _SD
 857         macro.
 858
 859 Tue Mar 18 15:52:24 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 860
 861         * gen-support.c (gen_support_c): Update for renaming of engine to
 862         sim-state.
 863
 864         * igen.c: Ditto.
 865         * gen-idecode.c (gen_idecode_c): Ditto.
 866
 867 Mon Mar 17 15:17:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 868
 869         * ld-decode.c (load_decode_table): Rename slash to reserved.
 870         (dump_decode_rule): Ditto.
 871
 872         * ld-insn.c (parse_insn_format): Differentiate between a `/' -
 873         reserved bit - and a `*' - wild card.
 874         (parse_insn_format): Change is_slash to more informative reserved.
 875         (dump_insn_field): Ditto.
 876         (insn_field_is_constant): Ditto.
 877         (insn_table_expand_opcode): Ditto.
 878
 879         * gen-idecode.c (print_idecode_validate): Make check_mask and
 880         check_val the correct integer size.
 881         (print_idecode_validate): Fix reserved bit check for 64 bit
 882         targets.
 883
 884 Fri Mar 14 11:24:06 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 885
 886         * ld-insn.c (parse_insn_format): Accept '*' as an alternative of
 887         `/' in bit fields.  `/' denotes a wild bit.
 888
 889 Fri Mar  7 18:20:38 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 890
 891         * igen.h, igen.c (main): New options. Control generation of
 892         conditional issue and slot verification code.
 893
 894 Fri Mar  7 18:17:25 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 895
 896         * gen-support.c (print_support_function_name): Prepend the global
 897         name prefix when applicable.  Provide #define to map the user
 898         specified name the generated globaly unique one.
 899
 900 Fri Mar  7 18:07:45 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 901
 902         * gen-idecode.c (print_idecode_validate): Wrap each of the checks
 903         - reserved bits, floating point and slot validation - with a
 904         #ifdef so that they are optional.
 905
 906 Fri Mar  7 16:35:13 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 907
 908         * gen-idecode.c (error_leaf_contains_multiple_insn): New function
 909         - report the error of a leaf node in the decision tree containing
 910         several instructions.
 911         (print_idecode_table_leaf): Detect a leaf with multiple instructions.
 912         (print_idecode_switch_leaf): Ditto.
 913
 914         * gen-semantics.h, gen-semantics.c (print_idecode_illegal,
 915         print_idecode_invalid): Rename former to latter.  Add argument so
 916         that one function can generate all invalid instruction cases -
 917         illegal, fp-unavailable, wrong-slot.
 918         * gen-engine.c: Update.
 919
 920         * gen-idecode.c: Use print_idecode_invalid to generate a function
 921         call for cases when fp-unavailable and the slot is wrong.
 922
 923         * gen-idecode.c (print_idecode_validate): New check, generate code
 924         to verify that the instruction slot is correct.
 925
 926         * igen.c (main): Simplify options.
 927
 928 Wed Mar  5 09:55:55 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 929
 930         * igen.c (print_itrace): Remove source line reference for trace
 931         code - let the user see the generated file.
 932         (print_itrace): Print the trace code rather than reference a
 933         macro.
 934
 935 Tue Mar  4 17:31:55 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 936
 937         * igen.c (print_semantic_function_actual): Pass either the
 938         processor - smp - or the engine - mono - into semantic functions.
 939         Don't pass in both.
 940
 941         * gen-icache.c (print_icache_body): Dependant on smp, derive
 942         processor from engine or engine from processor, and hence ensuring
 943         that both are defined in all semantic functions.
 944
 945 Mon Mar  3 17:11:21 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 946
 947         * ld-insn.c (parse_insn_format): Make the width field optional.
 948         If missing assume that the number of characters in the value
 949         determines the number of bits in the field.
 950
 951 Thu Feb 27 11:27:48 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 952
 953         * ld-insn.c (insn_table_expand_opcode): Replace assertion with
 954         more useful error message.
 955
 956 Tue Feb 25 16:43:27 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 957
 958         * misc.c (error): Output errors on stderr.
 959
 960         * ld-insn.c (parse_insn_format): Skip any leading spaces.
 961         Verify the width of instructions being parsed.
 962
 963         * table.c (table_entry_read): Parse CPP's convention for
 964         specifying original file name/line-nr.
 965
 966 Wed Feb 19 12:30:28 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 967
 968         * ld-insn.c (parse_insn_format): Allow trailing spaces in
 969         instruction fields.
 970
 971         * Makefile.in: Create using ../ppc/Makefile.in as a starting
 972         point.
 973         * configure.in: Ditto vis ../ppc/configure.in
 974
 975 Mon Feb 17 10:44:18 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 976
 977         * gen-support.c (gen_support_c): Always include engine.h instead
 978         of cpu.h
 979         * gen-idecode.c (gen_idecode_c): Ditto.
 980
 981         * words.h (instruction_word): Remove instruction_word - now
 982         generated by igen.
 983         (address_word): New.  Used by igen.
 984
 985         * lf.c (lf_print_function_type_function): New, pass a function to
 986         print out the type instead of a constant string.
 987
 988         * igen.h, igen.c (print_semantic_function_formal,
 989         SEMANTIC_FUNCTION_FORMAL): Relace macro with function.
 990         (print_semantic_function_actual, SEMANTIC_FUNCTION_ACTUAL): Ditto.
 991         (print_semantic_function_type, SEMANTIC_FUNCTION_TYPE): Ditto.
 992         (print_icache_function_type, ICACHE_FUNCTION_TYPE): Ditto.
 993         (print_icache_function_formal, ICACHE_FUNCTION_FORMAL): Ditto.
 994         (print_icache_function_actual, ICACHE_FUNCTION_ACTUAL): Ditto.
 995         * gen-idecode.c (print_idecode_table): Update.
 996         (idecode_switch_leaf): Update.
 997         (print_idecode_switch_function_header): Ditto.
 998         (print_idecode_floating_point_unavailable): Ditto.
 999         (print_idecode_issue_function_header): Ditto.
1000         * igen.c (gen_icache_h): Ditto.
1001         * gen-engine.c (print_engine_table): Ditto.
1002         (engine_switch_leaf): Ditto.
1003         * gen-support.c (print_support_function_name): Ditto.
1004         * gen-semantics.c (print_semantic_function_header): Update.
1005         Update.
1006         * gen-icache.c (print_icache_function_header): Update.
1007         (print_icache_function): Update.
1008         (print_icache_internal_function_declaration): Update.
1009         (print_icache_internal_function_definition): Update.
1010
1011         * gen-idecode.c (gen_idecode_h): Drop including of idecode_*.h
1012         files, will at some stage need to move it into support.
1013
1014         * igen.h, igen.c (main): New option -e <engine> - generate a full
1015         simulation engine.  Previously this was the -d <idecode-file>
1016         option.
1017         * gen-engine.h, gen-engine.c: Copies of gen-idecode.*.  Will need
1018         to clean these up so that that call upon the updated gen-idecode
1019         code.
1020
1021         * gen-idecode.h, gen-idecode.c: Prune out any code not relevant to
1022         generating a decode table.
1023
1024         * Makefile.in (igen): Add dependencies for new gen-engine.* files.
1025
1026         * igen.h, igen.c (main): New option -M - Control what is returned
1027         by semantic functions - -1/NIA vs CIA+N/NIA.  Add
1028         generate_semantic_returning_modified_nia_only to igen_code enum.
1029         * gen-semantics.c (print_semantic_body): As an alternative, make
1030         NIA == -1 instead of CIA+insn_size by default.
1031
1032         * igen.h, igen.c (main, global_name_prefix, global_uname_prefix):
1033         New option -P <prefix> - Prepend all generated functions with the
1034         specified prefix.
1035         (gen_idecode_c): Adjust.
1036         * gen-icache.c (print_icache_struct): Ditto.
1037         * gen-support.c (gen_support_c): Ditto.
1038
1039 Sun Feb 16 15:23:15 1997  Andrew Cagney  <cagney@critters.cygnus.com>
1040
1041         * igen.c (main): Correct usage. Missleading message about ucase
1042         options dumping internal tables.  -F now includes rather then
1043         excludes instructions.
1044
1045         * misc.h, misc.c (a2i): Make 64bit.
1046
1047         * ld-insn.h (max_insn_bit_size, default_insn_bit_size): Increase
1048         max to 64bits, expect trouble.  Make the default 32 bits.
1049         * gen-idecode.c (print_idecode_table): Change EXTRACTED*
1050         et.al. macro's to use the insn_bit_size instead of assuming 32
1051         bits.
1052         * gen-icache.c (print_icache_extraction): Ditto.
1053         * gen-idecode.c (idecode_switch_start): Ditto.
1054         * gen-idecode.c (gen_idecode_c): Ditto
1055
1056         * igen.h (insn_specifying_widths), igen.c (main): New option -W.
1057         Indicates that the instruction field of the table is specifying
1058         bit widths instead of bit offsets.
1059         * ld-insn.c (parse_insn_format): Parse instruction fields
1060         specifying widths.
1061
1062         * misc.c (a2i): Allow binary numbers to be specified using the
1063         syntax 0bNNNN.
1064         * ld-insn.c: Allow such numbers to appear in the instruction
1065         format.
1066
1067         * table.c (table_entry_read): Make // a valid comment character.
1068         (table_entry_read): Skip lines containing a leading " - these may
1069         eventually be used in a disasembler.
1070
1071 Fri Feb 14 15:23:15 1997  Andrew Cagney  <cagney@critters.cygnus.com>
1072
1073         * filter.c, filter.h, gen-engine.c, gen-engine.h, gen-icache.c,
1074         gen-icache.h, gen-idecode.c, gen-idecode.h, gen-itable.c,
1075         gen-itable.h, gen-model.c, gen-model.h, gen-semantics.c,
1076         gen-semantics.h, gen-support.c, gen-support.h, igen.c, igen.h,
1077         ld-cache.c, ld-cache.h, ld-decode.c, ld-decode.h, ld-insn.c,
1078         ld-insn.h, lf.c, lf.h, misc.c, misc.h, table.c, table.h: Copy in
1079         from the ../ppc directory.
1080
1081         * filter_host.c, filter_host.h: Copy in from the ../ppc directory
1082         renaming from filter_filename.[hc]