sim/igen/ChangeLog

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