sim/igen/ChangeLog

   1 Thu May 29 10:29:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * lf.c (lf_write): New function write an N character buffer to the
   4         file.
   5
   6         * igen.c (print_itrace): When available, use the assembler to
   7         print the insn-trace.
   8         (print_itrace_prefix): New function, print first part of call to
   9         print_one_insn.
  10         (print_itrace_format): New function, print fmt argument for
  11         print_one_insn.
  12
  13         * table.c (table_entry_read): Save any assembler lines instead of
  14         discarding them.
  15
  16 Wed May 28 09:55:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  17
  18         * gen-icache.c (print_icache_body): Process immeds.
  19
  20         * gen-semantics.c (print_semantic_body): When computing NIA, skip
  21         any immed words that follow the instruction word.
  22
  23         * ld-insn.c (parse_insn_format): Parse immeds appended to an
  24         instruction.
  25
  26         * igen.c (main): Allow any register to be specified as the zero
  27         register.
  28         (semantic_zero_reg): Global, index to zero register.
  29
  30         * gen-semantics.c (print_semantic_body): Zero selected register.
  31
  32 Tue May 27 14:12:32 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  33
  34         * igen.h: Stop options and code gen type bit masks overlaping.
  35
  36 Fri May 23 12:01:08 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  37
  38         * gen-semantics.c (print_semantic_body): Incorrect test for
  39         zero-r0 code.
  40
  41 Fri May 16 14:32:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  42
  43         * gen-semantics.c (print_semantic_body): Use common sim-engine
  44         interface.
  45
  46 Fri May 16 11:48:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  47
  48         * gen-semantics.c (print_semantic_body): Add code to clear r0.
  49
  50         * igen.c (main): Add new option zero-r0, which adds code to clear
  51         GPR(0) each cycle.
  52
  53 Wed May  7 12:31:30 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  54
  55         * igen.c (print_itrace): Fix so line-nr is passed to trace
  56         function.
  57
  58         * gen-idecode.c (print_idecode_validate): Correct FP code.
  59
  60         * gen-support.c (gen_support_h): Always pass MY_INDEX to support
  61         functions.
  62         (print_support_function_name): Ditto.
  63
  64 Tue May  6 06:12:04 1997  Mike Meissner  <meissner@cygnus.com>
  65
  66         * igen.c (print_itrace): Call trace_one_insn to trace
  67         instructions, rather than doing it directly.
  68
  69 Mon May  5 14:11:46 1997  Mike Meissner  <meissner@cygnus.com>
  70
  71         * gen-engine.c (engine_switch_leaf): Remove extra %s.
  72         (print_engine_floating_point_unavailable): Wrap in #ifdef
  73         UNUSED/#endif, until somebody uses it.
  74
  75         * gen-idecode.c (error_leaf_contains_multiple_insn): Remove unused
  76         variable.
  77         (print_jump_until_stop_body): Wrap in #ifdef UNUSED/#endif, until
  78         somebody uses it.
  79         (print_idecode_validate): Use long formats to print long values.
  80
  81         * gen-semantics.c (print_idecode_invalid): Set name to "unknown"
  82         if we get an unexpected type.
  83
  84 Fri May  2 13:28:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  85
  86         * igen.c (print_itrace): Pass SD as well as CPU to calls to
  87         trace_printf.
  88
  89         * gen-support.c (gen_support_h): Always pass sim_cia cia to
  90         support functions.
  91         (print_support_function_name): Ditto.
  92
  93 Wed Apr 30 17:35:51 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  94
  95         * gen-support.c (support_c_function): Remove unnecessary memset of
  96         cia.
  97         * gen-semantics.c (print_semantic_body): Wasn't closing
  98         generated comment.
  99
 100 Tue Apr 29 11:11:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 101
 102         * ld-insn.c (load_insn_table): Report instructions that do not
 103         have at least a format and name.
 104         (insn_table_find_opcode_field): Check progress is being made.
 105
 106         * gen-support.c (support_c_function): Report empty function body.
 107
 108 Thu Apr 24 11:43:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 109
 110         * ld-insn.c (insn_table_expand_opcode): Allow reserved fields to
 111         be broken up.
 112         (insn_table_expand_insns): Allow special rules to apply to groups
 113         of instructions when all members of the group match the special
 114         mask/value.
 115
 116         * gen-semantics.c (print_c_semantic): Ditto.
 117         * igen.c (print_semantic_function_formal): Ditto.
 118         (print_semantic_function_type): Ditto.
 119         * igen.c (print_icache_function_formal): Ditto.
 120         * gen-idecode.c (print_idecode_issue_function_body): Ditto.
 121
 122         * gen-idecode.c (gen_idecode_h): Prepend the global_prefix to the
 123         instruction_address type.
 124
 125         * gen-semantics.c (print_semantic_body): Call cpu_error when an
 126         unimplemented instruction is encountered - gives the interpreter
 127         the chance to stop correctly.
 128
 129 Wed Apr 23 20:06:36 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 130
 131         * igen.c (print_function_name): Allow dot's in instruction names.
 132
 133 Tue Apr 22 21:46:28 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 134
 135         * igen.c (main), igen.h: Support new option - delayed-branch -
 136         generate code to drive a delayed branch processor.
 137
 138         * gen-idecode.c (gen_idecode_h): Define instruction_address type.
 139
 140         * igen.c (print_icache_function_formal): Replace address_word with
 141         instruction_address.
 142         (print_semantic_function_formal): Ditto.
 143         (print_semantic_function_type): Ditto.
 144         * gen-idecode.c (print_idecode_issue_function_body): Ditto.
 145
 146         * gen-semantics.c (print_semantic_body): Ditto.
 147         (print_c_semantic): Ditto.
 148
 149         * gen-support.c (support_c_function): Return a zeroed CIA instead
 150         of just zero - works with any cia type.
 151
 152         * igen.c (print_itrace): For delayed branch case, print just the
 153         current instruction.
 154
 155 Thu Apr 17 07:02:33 1997  Doug Evans  <dje@canuck.cygnus.com>
 156
 157         * igen.c (print_itrace): Use TRACE_FOO_P and trace_printf.
 158
 159 Tue Apr 15 15:20:31 1997  Ian Lance Taylor  <ian@cygnus.com>
 160
 161         * Makefile.in (INSTALL): Set to @INSTALL@.
 162         (INSTALL_XFORM, INSTALL_XFORM1): Remove.
 163
 164 Mon Apr 14 16:29:34 1997  Ian Lance Taylor  <ian@cygnus.com>
 165
 166         * Makefile.in (INSTALL): Change install.sh to install-sh.
 167
 168 Wed Apr  2 18:51:20 1997  Doug Evans  <dje@canuck.cygnus.com>
 169
 170         * gen-support.c (gen_support_c): sim-state.h renamed to sim-main.h.
 171         * gen-idecode.c (gen_idecode_c): Likewise.
 172         * igen.c (gen_semantics_c): Likewise.
 173
 174 Mon Mar 24 10:10:08 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 175
 176         * gen-icache.c (print_icache_body): No longer define cpu/sd,
 177         support.h now defines CPU/SD globally.
 178
 179         * gen-model.c (gen_model_h): Ditto.
 180
 181         * gen-idecode.c (print_idecode_issue_function_body): Ditto.
 182         (print_jump): Ditto.
 183         (print_jump_until_stop_body): Ditto.
 184         (print_idecode_validate): Ditto.
 185
 186         * gen-icache.c (print_icache_body): Ditto.
 187
 188         * gen-semantics.c (print_semantic_body): Ditto.
 189
 190         * igen.c (print_semantic_function_formal): Rename cpu to sim_cpu,
 191         processor to cpu.
 192         (print_icache_function_formal): Ditto.
 193
 194         * gen-support.c (print_support_function_name): Include sd/cpu arg
 195         in support function argument list.
 196         (support_c_function): Generate code to cpu/sd from sd/cpu.
 197         (gen_support_h): Define _SD the argument prefix for all support
 198         functions.  Define SD/CPU to determine sd/cpu from value of _SD
 199         macro.
 200
 201 Tue Mar 18 15:52:24 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 202
 203         * gen-support.c (gen_support_c): Update for renaming of engine to
 204         sim-state.
 205
 206         * igen.c: Ditto.
 207         * gen-idecode.c (gen_idecode_c): Ditto.
 208
 209 Mon Mar 17 15:17:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 210
 211         * ld-decode.c (load_decode_table): Rename slash to reserved.
 212         (dump_decode_rule): Ditto.
 213
 214         * ld-insn.c (parse_insn_format): Differentiate between a `/' -
 215         reserved bit - and a `*' - wild card.
 216         (parse_insn_format): Change is_slash to more informative reserved.
 217         (dump_insn_field): Ditto.
 218         (insn_field_is_constant): Ditto.
 219         (insn_table_expand_opcode): Ditto.
 220
 221         * gen-idecode.c (print_idecode_validate): Make check_mask and
 222         check_val the correct integer size.
 223         (print_idecode_validate): Fix reserved bit check for 64 bit
 224         targets.
 225
 226 Fri Mar 14 11:24:06 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 227
 228         * ld-insn.c (parse_insn_format): Accept '*' as an alternative of
 229         `/' in bit fields.  `/' denotes a wild bit.
 230
 231 Fri Mar  7 18:20:38 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 232
 233         * igen.h, igen.c (main): New options. Control generation of
 234         conditional issue and slot verification code.
 235
 236 Fri Mar  7 18:17:25 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 237
 238         * gen-support.c (print_support_function_name): Prepend the global
 239         name prefix when applicable.  Provide #define to map the user
 240         specified name the generated globaly unique one.
 241
 242 Fri Mar  7 18:07:45 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 243
 244         * gen-idecode.c (print_idecode_validate): Wrap each of the checks
 245         - reserved bits, floating point and slot validation - with a
 246         #ifdef so that they are optional.
 247
 248 Fri Mar  7 16:35:13 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 249
 250         * gen-idecode.c (error_leaf_contains_multiple_insn): New function
 251         - report the error of a leaf node in the decision tree containing
 252         several instructions.
 253         (print_idecode_table_leaf): Detect a leaf with multiple instructions.
 254         (print_idecode_switch_leaf): Ditto.
 255
 256         * gen-semantics.h, gen-semantics.c (print_idecode_illegal,
 257         print_idecode_invalid): Rename former to latter.  Add argument so
 258         that one function can generate all invalid instruction cases -
 259         illegal, fp-unavailable, wrong-slot.
 260         * gen-engine.c: Update.
 261
 262         * gen-idecode.c: Use print_idecode_invalid to generate a function
 263         call for cases when fp-unavailable and the slot is wrong.
 264
 265         * gen-idecode.c (print_idecode_validate): New check, generate code
 266         to verify that the instruction slot is correct.
 267
 268         * igen.c (main): Simplify options.
 269
 270 Wed Mar  5 09:55:55 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 271
 272         * igen.c (print_itrace): Remove source line reference for trace
 273         code - let the user see the generated file.
 274         (print_itrace): Print the trace code rather than reference a
 275         macro.
 276
 277 Tue Mar  4 17:31:55 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 278
 279         * igen.c (print_semantic_function_actual): Pass either the
 280         processor - smp - or the engine - mono - into semantic functions.
 281         Don't pass in both.
 282
 283         * gen-icache.c (print_icache_body): Dependant on smp, derive
 284         processor from engine or engine from processor, and hence ensuring
 285         that both are defined in all semantic functions.
 286
 287 Mon Mar  3 17:11:21 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 288
 289         * ld-insn.c (parse_insn_format): Make the width field optional.
 290         If missing assume that the number of characters in the value
 291         determines the number of bits in the field.
 292
 293 Thu Feb 27 11:27:48 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 294
 295         * ld-insn.c (insn_table_expand_opcode): Replace assertion with
 296         more useful error message.
 297
 298 Tue Feb 25 16:43:27 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 299
 300         * misc.c (error): Output errors on stderr.
 301
 302         * ld-insn.c (parse_insn_format): Skip any leading spaces.
 303         Verify the width of instructions being parsed.
 304
 305         * table.c (table_entry_read): Parse CPP's convention for
 306         specifying original file name/line-nr.
 307
 308 Wed Feb 19 12:30:28 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 309
 310         * ld-insn.c (parse_insn_format): Allow trailing spaces in
 311         instruction fields.
 312
 313         * Makefile.in: Create using ../ppc/Makefile.in as a starting
 314         point.
 315         * configure.in: Ditto vis ../ppc/configure.in
 316
 317 Mon Feb 17 10:44:18 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 318
 319         * gen-support.c (gen_support_c): Always include engine.h instead
 320         of cpu.h
 321         * gen-idecode.c (gen_idecode_c): Ditto.
 322
 323         * words.h (instruction_word): Remove instruction_word - now
 324         generated by igen.
 325         (address_word): New.  Used by igen.
 326
 327         * lf.c (lf_print_function_type_function): New, pass a function to
 328         print out the type instead of a constant string.
 329
 330         * igen.h, igen.c (print_semantic_function_formal,
 331         SEMANTIC_FUNCTION_FORMAL): Relace macro with function.
 332         (print_semantic_function_actual, SEMANTIC_FUNCTION_ACTUAL): Ditto.
 333         (print_semantic_function_type, SEMANTIC_FUNCTION_TYPE): Ditto.
 334         (print_icache_function_type, ICACHE_FUNCTION_TYPE): Ditto.
 335         (print_icache_function_formal, ICACHE_FUNCTION_FORMAL): Ditto.
 336         (print_icache_function_actual, ICACHE_FUNCTION_ACTUAL): Ditto.
 337         * gen-idecode.c (print_idecode_table): Update.
 338         (idecode_switch_leaf): Update.
 339         (print_idecode_switch_function_header): Ditto.
 340         (print_idecode_floating_point_unavailable): Ditto.
 341         (print_idecode_issue_function_header): Ditto.
 342         * igen.c (gen_icache_h): Ditto.
 343         * gen-engine.c (print_engine_table): Ditto.
 344         (engine_switch_leaf): Ditto.
 345         * gen-support.c (print_support_function_name): Ditto.
 346         * gen-semantics.c (print_semantic_function_header): Update.
 347         Update.
 348         * gen-icache.c (print_icache_function_header): Update.
 349         (print_icache_function): Update.
 350         (print_icache_internal_function_declaration): Update.
 351         (print_icache_internal_function_definition): Update.
 352
 353         * gen-idecode.c (gen_idecode_h): Drop including of idecode_*.h
 354         files, will at some stage need to move it into support.
 355
 356         * igen.h, igen.c (main): New option -e <engine> - generate a full
 357         simulation engine.  Previously this was the -d <idecode-file>
 358         option.
 359         * gen-engine.h, gen-engine.c: Copies of gen-idecode.*.  Will need
 360         to clean these up so that that call upon the updated gen-idecode
 361         code.
 362
 363         * gen-idecode.h, gen-idecode.c: Prune out any code not relevant to
 364         generating a decode table.
 365
 366         * Makefile.in (igen): Add dependencies for new gen-engine.* files.
 367
 368         * igen.h, igen.c (main): New option -M - Control what is returned
 369         by semantic functions - -1/NIA vs CIA+N/NIA.  Add
 370         generate_semantic_returning_modified_nia_only to igen_code enum.
 371         * gen-semantics.c (print_semantic_body): As an alternative, make
 372         NIA == -1 instead of CIA+insn_size by default.
 373
 374         * igen.h, igen.c (main, global_name_prefix, global_uname_prefix):
 375         New option -P <prefix> - Prepend all generated functions with the
 376         specified prefix.
 377         (gen_idecode_c): Adjust.
 378         * gen-icache.c (print_icache_struct): Ditto.
 379         * gen-support.c (gen_support_c): Ditto.
 380
 381 Sun Feb 16 15:23:15 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 382
 383         * igen.c (main): Correct usage. Missleading message about ucase
 384         options dumping internal tables.  -F now includes rather then
 385         excludes instructions.
 386
 387         * misc.h, misc.c (a2i): Make 64bit.
 388
 389         * ld-insn.h (max_insn_bit_size, default_insn_bit_size): Increase
 390         max to 64bits, expect trouble.  Make the default 32 bits.
 391         * gen-idecode.c (print_idecode_table): Change EXTRACTED*
 392         et.al. macro's to use the insn_bit_size instead of assuming 32
 393         bits.
 394         * gen-icache.c (print_icache_extraction): Ditto.
 395         * gen-idecode.c (idecode_switch_start): Ditto.
 396         * gen-idecode.c (gen_idecode_c): Ditto
 397
 398         * igen.h (insn_specifying_widths), igen.c (main): New option -W.
 399         Indicates that the instruction field of the table is specifying
 400         bit widths instead of bit offsets.
 401         * ld-insn.c (parse_insn_format): Parse instruction fields
 402         specifying widths.
 403
 404         * misc.c (a2i): Allow binary numbers to be specified using the
 405         syntax 0bNNNN.
 406         * ld-insn.c: Allow such numbers to appear in the instruction
 407         format.
 408
 409         * table.c (table_entry_read): Make // a valid comment character.
 410         (table_entry_read): Skip lines containing a leading " - these may
 411         eventually be used in a disasembler.
 412
 413 Fri Feb 14 15:23:15 1997  Andrew Cagney  <cagney@critters.cygnus.com>
 414
 415         * filter.c, filter.h, gen-engine.c, gen-engine.h, gen-icache.c,
 416         gen-icache.h, gen-idecode.c, gen-idecode.h, gen-itable.c,
 417         gen-itable.h, gen-model.c, gen-model.h, gen-semantics.c,
 418         gen-semantics.h, gen-support.c, gen-support.h, igen.c, igen.h,
 419         ld-cache.c, ld-cache.h, ld-decode.c, ld-decode.h, ld-insn.c,
 420         ld-insn.h, lf.c, lf.h, misc.c, misc.h, table.c, table.h: Copy in
 421         from the ../ppc directory.
 422
 423         * filter_host.c, filter_host.h: Copy in from the ../ppc directory
 424         renaming from filter_filename.[hc]