sim/igen/ChangeLog

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