sim/igen/ChangeLog

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