sim/igen/ChangeLog

   1 Thu Oct 16 11:03:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * gen-semantics.c (print_semantic_body): Use CIA not
   4         cia.ip. Escape newlines at end of generated call to
   5         sim_engine_abort.
   6
   7 Tue Oct 14 11:13:27 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   8
   9         * igen.c (print_itrace): Output line-ref to igen source file when
  10         generating trace statements.
  11         (print_itrace_prefix, print_itrace_format): Escape newline at end
  12         of each line of generated call to trace function.
  13
  14 Mon Oct 13 11:27:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  15
  16         * gen-support.c (gen_support_h): Generate #define NIA. Definition
  17         dependant on gen-delayed-branch mode.
  18
  19         * ld-insn.c (parse_insn_mnemonic_record): Check for opening and
  20         closing double quote in mnemonic field.
  21         (parse_option_record): Add gen-delayed-branch option.
  22
  23 Wed Oct  8 13:10:16 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  24
  25         * gen.c (insn_list_insert): Missing \n in warning.
  26
  27         * ld-insn.c (load_insn_table): Only notify of discarded
  28         instrctions when warn.discard enabled.
  29
  30         * igen.h: Add option.warn.discard, default enabled.
  31
  32         * igen.c (main): Add -Wnodiscard option.
  33
  34         * ld-insn.c (record_type): For old record type, check the number
  35         of fields is correct.
  36         (load_insn_table): Allow insn assembler and insn model records to
  37         appear in any order.
  38         (parse_insn_model_record): Rename from parse_insn_model_records.
  39         Parse only one record.
  40         (parse_insn_mnemonic_record): Rename from
  41         parse_insn_mnemonic_records.  Parse only one record.
  42
  43 Tue Sep 23 15:52:06 1997  Felix Lee  <flee@yin.cygnus.com>
  44
  45         * gen-itable.c (gen_itable_h): [nr_itable_* + 1] to avoid
  46         illegal zero-sized array.
  47         (itable_print_set): likewise, avoid empty initializers.
  48
  49 Mon Sep 22 18:49:07 1997  Felix Lee  <flee@cygnus.com>
  50
  51         * configure.in: i386-windows is a cross, so don't expect
  52         libiberty to be there.
  53         * configure: updated.
  54
  55 Fri Sep 19 10:36:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  56
  57         * igen.c (print_function_name): Put the format name after the
  58         function / instruction name, not before.
  59         (print_itrace): Better format trace code.
  60
  61 Tue Sep 16 11:01:07 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  62
  63         * gen.c (insns_bit_useless): Don't treat string fields restricted
  64         to a range of values as useless.
  65
  66 Mon Sep 15 15:47:21 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  67
  68         * igen.c (gen_run_c): Handle non-multi-sim case.
  69
  70         * gen-support.c (gen_support_h): Define SD_ - to replace _SD.
  71         Define CIA from cia.
  72
  73 Thu Sep 11 10:27:39 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  74
  75         * gen-semantics.c (print_semantic_body): Trace the instruction
  76         after it has been validated.
  77         (print_semantic_body): Count the instruction using sim-profile.
  78
  79 Wed Sep 10 13:35:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  80
  81         * gen-itable.c (gen_itable_h): Collect summary info on instruction
  82         table when traversing it.
  83         (gen_itable_h): Output an enum defining the max size of each of
  84         the itable string members.
  85
  86 Tue Sep  9 03:30:26 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  87
  88         * igen.c (gen_run_c): New function. Generate sim_engine_run that
  89         looks at the currently selected architecture.
  90
  91         * gen-engine.c, gen-idecode.c: Add multi-sim support - generate
  92         one engine per model.
  93
  94         * gen-semantics.c, gen-icache.c gen-support.c:
  95         Update.
  96
  97         * ld-insn.h, ld-insn-h (load_insn_table): Rewrite.  table.h only
  98         returns a line at a time.  Parse multi-word instructions.  Add
  99         multi-sim support.
 100
 101         * table.h, table.c: Simplify.  Only parse a single line at a time.
 102         ld-insn can handle the rest.
 103
 104         * filter.h, filter.c (filter_parse, filter_add, filter_is_subset,
 105         filter_is_common, filter_is_member, filter_next): New filter
 106         operations.
 107         (dump_filter): Ditto.
 108
 109         * gen.h, gen.c: New file.  Takes the insn table and turns it into
 110         a set of decode tables and semantic functions.
 111
 112         * ld-insn.c: Copy generator code from here.
 113         * gen.c: To here.
 114
 115 Fri Aug  8 11:43:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 116
 117         * misc.h (NZALLOC): Allocate an N element array of TYPE.
 118
 119         * table.h, table.c: Simplify table parser so that it only
 120         understands colon delimited lines and code blocks.
 121         (table_read): Parse '{' ... '}' as a code block.
 122         (table_print_code): New function, print out a code block to file.
 123         (main): Add suport for standalone testing.
 124
 125         * ld-insn.h, ld-insn.c:
 126
 127
 128 Mon Sep  1 11:41:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 129
 130         * gen-idecode.c (error_leaf_contains_multiple_insn): Make static.
 131         (print_jump_definition, print_jump, print_jump_internal_function,
 132         print_jump_insn, print_jump_until_stop_body): Delete, moved to
 133         sim-engine.c
 134
 135         * igen.c (print_itrace_format): Delete unused variable chp.
 136         (gen-engine.h): Include.
 137
 138         * table.c (current_file_name, current_line_entry,
 139         current_line_entry): Make static.
 140
 141 Wed Aug  6 12:31:17 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 142
 143         * configure.in: Define AR_FOR_BUILD, AR_FLAGS_FOR_BUILD,
 144         RANLIB_FOR_BUILD and CFLAGS_FOR_BUILD.
 145         * configure.in: Include simulator common/aclocal.m4.
 146         * configure.in: Add --enable-sim-warnings option.
 147         * configure: Re-generate.
 148
 149         * Makefile.in: Use.
 150
 151         * Makefile.in (tmp-filter): New rule.
 152         (igen.o, tmp-table, tmp-ld-decode, tmp-ld-cache, tmp-ld-insn,
 153         ld-decode.o, ld-cache.o, ld-insn.o): Fix dependencies.
 154
 155         * gen.h, gen.c: New files.
 156
 157         * Makefile.in (gen.o, tmp-gen): New rules, update all
 158         dependencies.
 159
 160 Tue Jun 24 11:46:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 161
 162         * ld-insn.c (load_insn_table): Accept %s as a function type.
 163
 164 Thu Jun  5 17:14:32 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 165
 166         * igen.c (print_itrace_prefix): Move printing of insn prefix to
 167         here.
 168         (print_itrace_format): Drop printing of MY_NAME in instruction
 169         trace.  Printing of insn prefix moved.
 170         (print_itrace): Ditto.
 171
 172 Fri May 30 11:27:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 173
 174         * gen-icache.c (print_icache_function_header): Pass
 175         table_line_entry instead of separate file and line.
 176
 177         * table.c (table_entry_read): Set assembler source file/line-nr to
 178         the current not initial file.
 179         (table_entry_read): Fix line numbering of source files.
 180
 181         table.h (table_line_entry): New structure.  Exactly specifies a
 182         source file/line-nr.
 183         (table_*_entry): Add this to all.
 184
 185         table.c (table_entry_print_cpp_line_nr): Change to use values from
 186         a table_line_entry struct.
 187         (table_entry_read): Save table_line_entry in all structures read.
 188
 189         gen-icache.c, gen-support.c, gen-idecode.c, gen-semantics.c,
 190         gen-model.c: Update all references.
 191
 192 Thu May 29 10:29:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 193
 194         * igen.c (print_my_defines): Define MY_NAME - a string.  For
 195         MY_PREFIX, undefine the name of the function incase some dumb
 196         header defined it.  it.
 197         (print_itrace): Use MY_NAME not MY_PREFIX.
 198
 199         * lf.c (lf_write): New function write an N character buffer to the
 200         file.
 201
 202         * igen.c (print_itrace): When available, use the assembler to
 203         print the insn-trace.
 204         (print_itrace_prefix): New function, print first part of call to
 205         print_one_insn.
 206         (print_itrace_format): New function, print fmt argument for
 207         print_one_insn.
 208
 209         * table.c (table_entry_read): Save any assembler lines instead of
 210         discarding them.
 211
 212 Wed May 28 09:55:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 213
 214         * gen-icache.c (print_icache_body): Process immeds.
 215
 216         * gen-semantics.c (print_semantic_body): When computing NIA, skip
 217         any immed words that follow the instruction word.
 218
 219         * ld-insn.c (parse_insn_format): Parse immeds appended to an
 220         instruction.
 221
 222         * igen.c (main): Allow any register to be specified as the zero
 223         register.
 224         (semantic_zero_reg): Global, index to zero register.
 225
 226         * gen-semantics.c (print_semantic_body): Zero selected register.
 227
 228 Tue May 27 14:12:32 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 229
 230         * igen.h: Stop options and code gen type bit masks overlaping.
 231
 232 Fri May 23 12:01:08 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 233
 234         * gen-semantics.c (print_semantic_body): Incorrect test for
 235         zero-r0 code.
 236
 237 Fri May 16 14:32:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 238
 239         * gen-semantics.c (print_semantic_body): Use common sim-engine
 240         interface.
 241
 242 Fri May 16 11:48:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 243
 244         * gen-semantics.c (print_semantic_body): Add code to clear r0.
 245
 246         * igen.c (main): Add new option zero-r0, which adds code to clear
 247         GPR(0) each cycle.
 248
 249 Wed May  7 12:31:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 250
 251         * igen.c (print_itrace): Fix so line-nr is passed to trace
 252         function.
 253
 254         * gen-idecode.c (print_idecode_validate): Correct FP code.
 255
 256         * gen-support.c (gen_support_h): Always pass MY_INDEX to support
 257         functions.
 258         (print_support_function_name): Ditto.
 259
 260 Tue May  6 06:12:04 1997  Mike Meissner  <meissner@cygnus.com>
 261
 262         * igen.c (print_itrace): Call trace_one_insn to trace
 263         instructions, rather than doing it directly.
 264
 265 Mon May  5 14:11:46 1997  Mike Meissner  <meissner@cygnus.com>
 266
 267         * gen-engine.c (engine_switch_leaf): Remove extra %s.
 268         (print_engine_floating_point_unavailable): Wrap in #ifdef
 269         UNUSED/#endif, until somebody uses it.
 270
 271         * gen-idecode.c (error_leaf_contains_multiple_insn): Remove unused
 272         variable.
 273         (print_jump_until_stop_body): Wrap in #ifdef UNUSED/#endif, until
 274         somebody uses it.
 275         (print_idecode_validate): Use long formats to print long values.
 276
 277         * gen-semantics.c (print_idecode_invalid): Set name to "unknown"
 278         if we get an unexpected type.
 279
 280 Fri May  2 13:28:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 281
 282         * igen.c (print_itrace): Pass SD as well as CPU to calls to
 283         trace_printf.
 284
 285         * gen-support.c (gen_support_h): Always pass sim_cia cia to
 286         support functions.
 287         (print_support_function_name): Ditto.
 288
 289 Wed Apr 30 17:35:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 290
 291         * gen-support.c (support_c_function): Remove unnecessary memset of
 292         cia.
 293         * gen-semantics.c (print_semantic_body): Wasn't closing
 294         generated comment.
 295
 296 Tue Apr 29 11:11:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 297
 298         * ld-insn.c (load_insn_table): Report instructions that do not
 299         have at least a format and name.
 300         (insn_table_find_opcode_field): Check progress is being made.
 301
 302         * gen-support.c (support_c_function): Report empty function body.
 303
 304 Thu Apr 24 11:43:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 305
 306         * ld-insn.c (insn_table_expand_opcode): Allow reserved fields to
 307         be broken up.
 308         (insn_table_expand_insns): Allow special rules to apply to groups
 309         of instructions when all members of the group match the special
 310         mask/value.
 311
 312         * gen-semantics.c (print_c_semantic): Ditto.
 313         * igen.c (print_semantic_function_formal): Ditto.
 314         (print_semantic_function_type): Ditto.
 315         * igen.c (print_icache_function_formal): Ditto.
 316         * gen-idecode.c (print_idecode_issue_function_body): Ditto.
 317
 318         * gen-idecode.c (gen_idecode_h): Prepend the global_prefix to the
 319         instruction_address type.
 320
 321         * gen-semantics.c (print_semantic_body): Call cpu_error when an
 322         unimplemented instruction is encountered - gives the interpreter
 323         the chance to stop correctly.
 324
 325 Wed Apr 23 20:06:36 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 326
 327         * igen.c (print_function_name): Allow dot's in instruction names.
 328
 329 Tue Apr 22 21:46:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 330
 331         * igen.c (main), igen.h: Support new option - delayed-branch -
 332         generate code to drive a delayed branch processor.
 333
 334         * gen-idecode.c (gen_idecode_h): Define instruction_address type.
 335
 336         * igen.c (print_icache_function_formal): Replace address_word with
 337         instruction_address.
 338         (print_semantic_function_formal): Ditto.
 339         (print_semantic_function_type): Ditto.
 340         * gen-idecode.c (print_idecode_issue_function_body): Ditto.
 341
 342         * gen-semantics.c (print_semantic_body): Ditto.
 343         (print_c_semantic): Ditto.
 344
 345         * gen-support.c (support_c_function): Return a zeroed CIA instead
 346         of just zero - works with any cia type.
 347
 348         * igen.c (print_itrace): For delayed branch case, print just the
 349         current instruction.
 350
 351 Thu Apr 17 07:02:33 1997  Doug Evans  <dje@canuck.cygnus.com>
 352
 353         * igen.c (print_itrace): Use TRACE_FOO_P and trace_printf.
 354
 355 Tue Apr 15 15:20:31 1997  Ian Lance Taylor  <ian@cygnus.com>
 356
 357         * Makefile.in (INSTALL): Set to @INSTALL@.
 358         (INSTALL_XFORM, INSTALL_XFORM1): Remove.
 359
 360 Mon Apr 14 16:29:34 1997  Ian Lance Taylor  <ian@cygnus.com>
 361
 362         * Makefile.in (INSTALL): Change install.sh to install-sh.
 363
 364 Wed Apr  2 18:51:20 1997  Doug Evans  <dje@canuck.cygnus.com>
 365
 366         * gen-support.c (gen_support_c): sim-state.h renamed to sim-main.h.
 367         * gen-idecode.c (gen_idecode_c): Likewise.
 368         * igen.c (gen_semantics_c): Likewise.
 369
 370 Mon Mar 24 10:10:08 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 371
 372         * gen-icache.c (print_icache_body): No longer define cpu/sd,
 373         support.h now defines CPU/SD globally.
 374
 375         * gen-model.c (gen_model_h): Ditto.
 376
 377         * gen-idecode.c (print_idecode_issue_function_body): Ditto.
 378         (print_jump): Ditto.
 379         (print_jump_until_stop_body): Ditto.
 380         (print_idecode_validate): Ditto.
 381
 382         * gen-icache.c (print_icache_body): Ditto.
 383
 384         * gen-semantics.c (print_semantic_body): Ditto.
 385
 386         * igen.c (print_semantic_function_formal): Rename cpu to sim_cpu,
 387         processor to cpu.
 388         (print_icache_function_formal): Ditto.
 389
 390         * gen-support.c (print_support_function_name): Include sd/cpu arg
 391         in support function argument list.
 392         (support_c_function): Generate code to cpu/sd from sd/cpu.
 393         (gen_support_h): Define _SD the argument prefix for all support
 394         functions.  Define SD/CPU to determine sd/cpu from value of _SD
 395         macro.
 396
 397 Tue Mar 18 15:52:24 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 398
 399         * gen-support.c (gen_support_c): Update for renaming of engine to
 400         sim-state.
 401
 402         * igen.c: Ditto.
 403         * gen-idecode.c (gen_idecode_c): Ditto.
 404
 405 Mon Mar 17 15:17:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 406
 407         * ld-decode.c (load_decode_table): Rename slash to reserved.
 408         (dump_decode_rule): Ditto.
 409
 410         * ld-insn.c (parse_insn_format): Differentiate between a `/' -
 411         reserved bit - and a `*' - wild card.
 412         (parse_insn_format): Change is_slash to more informative reserved.
 413         (dump_insn_field): Ditto.
 414         (insn_field_is_constant): Ditto.
 415         (insn_table_expand_opcode): Ditto.
 416
 417         * gen-idecode.c (print_idecode_validate): Make check_mask and
 418         check_val the correct integer size.
 419         (print_idecode_validate): Fix reserved bit check for 64 bit
 420         targets.
 421
 422 Fri Mar 14 11:24:06 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 423
 424         * ld-insn.c (parse_insn_format): Accept '*' as an alternative of
 425         `/' in bit fields.  `/' denotes a wild bit.
 426
 427 Fri Mar  7 18:20:38 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 428
 429         * igen.h, igen.c (main): New options. Control generation of
 430         conditional issue and slot verification code.
 431
 432 Fri Mar  7 18:17:25 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 433
 434         * gen-support.c (print_support_function_name): Prepend the global
 435         name prefix when applicable.  Provide #define to map the user
 436         specified name the generated globaly unique one.
 437
 438 Fri Mar  7 18:07:45 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 439
 440         * gen-idecode.c (print_idecode_validate): Wrap each of the checks
 441         - reserved bits, floating point and slot validation - with a
 442         #ifdef so that they are optional.
 443
 444 Fri Mar  7 16:35:13 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 445
 446         * gen-idecode.c (error_leaf_contains_multiple_insn): New function
 447         - report the error of a leaf node in the decision tree containing
 448         several instructions.
 449         (print_idecode_table_leaf): Detect a leaf with multiple instructions.
 450         (print_idecode_switch_leaf): Ditto.
 451
 452         * gen-semantics.h, gen-semantics.c (print_idecode_illegal,
 453         print_idecode_invalid): Rename former to latter.  Add argument so
 454         that one function can generate all invalid instruction cases -
 455         illegal, fp-unavailable, wrong-slot.
 456         * gen-engine.c: Update.
 457
 458         * gen-idecode.c: Use print_idecode_invalid to generate a function
 459         call for cases when fp-unavailable and the slot is wrong.
 460
 461         * gen-idecode.c (print_idecode_validate): New check, generate code
 462         to verify that the instruction slot is correct.
 463
 464         * igen.c (main): Simplify options.
 465
 466 Wed Mar  5 09:55:55 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 467
 468         * igen.c (print_itrace): Remove source line reference for trace
 469         code - let the user see the generated file.
 470         (print_itrace): Print the trace code rather than reference a
 471         macro.
 472
 473 Tue Mar  4 17:31:55 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 474
 475         * igen.c (print_semantic_function_actual): Pass either the
 476         processor - smp - or the engine - mono - into semantic functions.
 477         Don't pass in both.
 478
 479         * gen-icache.c (print_icache_body): Dependant on smp, derive
 480         processor from engine or engine from processor, and hence ensuring
 481         that both are defined in all semantic functions.
 482
 483 Mon Mar  3 17:11:21 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 484
 485         * ld-insn.c (parse_insn_format): Make the width field optional.
 486         If missing assume that the number of characters in the value
 487         determines the number of bits in the field.
 488
 489 Thu Feb 27 11:27:48 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 490
 491         * ld-insn.c (insn_table_expand_opcode): Replace assertion with
 492         more useful error message.
 493
 494 Tue Feb 25 16:43:27 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 495
 496         * misc.c (error): Output errors on stderr.
 497
 498         * ld-insn.c (parse_insn_format): Skip any leading spaces.
 499         Verify the width of instructions being parsed.
 500
 501         * table.c (table_entry_read): Parse CPP's convention for
 502         specifying original file name/line-nr.
 503
 504 Wed Feb 19 12:30:28 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 505
 506         * ld-insn.c (parse_insn_format): Allow trailing spaces in
 507         instruction fields.
 508
 509         * Makefile.in: Create using ../ppc/Makefile.in as a starting
 510         point.
 511         * configure.in: Ditto vis ../ppc/configure.in
 512
 513 Mon Feb 17 10:44:18 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 514
 515         * gen-support.c (gen_support_c): Always include engine.h instead
 516         of cpu.h
 517         * gen-idecode.c (gen_idecode_c): Ditto.
 518
 519         * words.h (instruction_word): Remove instruction_word - now
 520         generated by igen.
 521         (address_word): New.  Used by igen.
 522
 523         * lf.c (lf_print_function_type_function): New, pass a function to
 524         print out the type instead of a constant string.
 525
 526         * igen.h, igen.c (print_semantic_function_formal,
 527         SEMANTIC_FUNCTION_FORMAL): Relace macro with function.
 528         (print_semantic_function_actual, SEMANTIC_FUNCTION_ACTUAL): Ditto.
 529         (print_semantic_function_type, SEMANTIC_FUNCTION_TYPE): Ditto.
 530         (print_icache_function_type, ICACHE_FUNCTION_TYPE): Ditto.
 531         (print_icache_function_formal, ICACHE_FUNCTION_FORMAL): Ditto.
 532         (print_icache_function_actual, ICACHE_FUNCTION_ACTUAL): Ditto.
 533         * gen-idecode.c (print_idecode_table): Update.
 534         (idecode_switch_leaf): Update.
 535         (print_idecode_switch_function_header): Ditto.
 536         (print_idecode_floating_point_unavailable): Ditto.
 537         (print_idecode_issue_function_header): Ditto.
 538         * igen.c (gen_icache_h): Ditto.
 539         * gen-engine.c (print_engine_table): Ditto.
 540         (engine_switch_leaf): Ditto.
 541         * gen-support.c (print_support_function_name): Ditto.
 542         * gen-semantics.c (print_semantic_function_header): Update.
 543         Update.
 544         * gen-icache.c (print_icache_function_header): Update.
 545         (print_icache_function): Update.
 546         (print_icache_internal_function_declaration): Update.
 547         (print_icache_internal_function_definition): Update.
 548
 549         * gen-idecode.c (gen_idecode_h): Drop including of idecode_*.h
 550         files, will at some stage need to move it into support.
 551
 552         * igen.h, igen.c (main): New option -e <engine> - generate a full
 553         simulation engine.  Previously this was the -d <idecode-file>
 554         option.
 555         * gen-engine.h, gen-engine.c: Copies of gen-idecode.*.  Will need
 556         to clean these up so that that call upon the updated gen-idecode
 557         code.
 558
 559         * gen-idecode.h, gen-idecode.c: Prune out any code not relevant to
 560         generating a decode table.
 561
 562         * Makefile.in (igen): Add dependencies for new gen-engine.* files.
 563
 564         * igen.h, igen.c (main): New option -M - Control what is returned
 565         by semantic functions - -1/NIA vs CIA+N/NIA.  Add
 566         generate_semantic_returning_modified_nia_only to igen_code enum.
 567         * gen-semantics.c (print_semantic_body): As an alternative, make
 568         NIA == -1 instead of CIA+insn_size by default.
 569
 570         * igen.h, igen.c (main, global_name_prefix, global_uname_prefix):
 571         New option -P <prefix> - Prepend all generated functions with the
 572         specified prefix.
 573         (gen_idecode_c): Adjust.
 574         * gen-icache.c (print_icache_struct): Ditto.
 575         * gen-support.c (gen_support_c): Ditto.
 576
 577 Sun Feb 16 15:23:15 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 578
 579         * igen.c (main): Correct usage. Missleading message about ucase
 580         options dumping internal tables.  -F now includes rather then
 581         excludes instructions.
 582
 583         * misc.h, misc.c (a2i): Make 64bit.
 584
 585         * ld-insn.h (max_insn_bit_size, default_insn_bit_size): Increase
 586         max to 64bits, expect trouble.  Make the default 32 bits.
 587         * gen-idecode.c (print_idecode_table): Change EXTRACTED*
 588         et.al. macro's to use the insn_bit_size instead of assuming 32
 589         bits.
 590         * gen-icache.c (print_icache_extraction): Ditto.
 591         * gen-idecode.c (idecode_switch_start): Ditto.
 592         * gen-idecode.c (gen_idecode_c): Ditto
 593
 594         * igen.h (insn_specifying_widths), igen.c (main): New option -W.
 595         Indicates that the instruction field of the table is specifying
 596         bit widths instead of bit offsets.
 597         * ld-insn.c (parse_insn_format): Parse instruction fields
 598         specifying widths.
 599
 600         * misc.c (a2i): Allow binary numbers to be specified using the
 601         syntax 0bNNNN.
 602         * ld-insn.c: Allow such numbers to appear in the instruction
 603         format.
 604
 605         * table.c (table_entry_read): Make // a valid comment character.
 606         (table_entry_read): Skip lines containing a leading " - these may
 607         eventually be used in a disasembler.
 608
 609 Fri Feb 14 15:23:15 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 610
 611         * filter.c, filter.h, gen-engine.c, gen-engine.h, gen-icache.c,
 612         gen-icache.h, gen-idecode.c, gen-idecode.h, gen-itable.c,
 613         gen-itable.h, gen-model.c, gen-model.h, gen-semantics.c,
 614         gen-semantics.h, gen-support.c, gen-support.h, igen.c, igen.h,
 615         ld-cache.c, ld-cache.h, ld-decode.c, ld-decode.h, ld-insn.c,
 616         ld-insn.h, lf.c, lf.h, misc.c, misc.h, table.c, table.h: Copy in
 617         from the ../ppc directory.
 618
 619         * filter_host.c, filter_host.h: Copy in from the ../ppc directory
 620         renaming from filter_filename.[hc]