sim/igen/ChangeLog

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