sim/v850/ChangeLog

   1 Wed Sep 17 16:21:08 1997  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * simops.c: Move "mov", "reti", to v850.igen, fix tracing.
   4
   5         * interp.c (hash): Delete.
   6
   7         * v850.igen (nop): Really do nothing.
   8
   9         * interp.c (do_interrupt): Mask interrupts after PSW is saved, not
  10         before.
  11         * v850.igen (reti): Return to current PC not previous.
  12
  13 start-sanitize-v850e
  14 Wed Sep 17 14:02:10 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  15
  16         * simops.c: Move "ctret", "bsw", "hsw" to v850.igen, fix tracing.
  17         (trace_module): Global, save component/module name across insn.
  18
  19         * simops.c: Move "bsh" to v850.igen, fix.
  20
  21         * v850.igen (callt): Load correct number of bytes. Fix tracing.
  22         (stsr, ldsr): Correct src, dest fields. Fix tracing.
  23         (ctret): Force alignment.  Fix tracing.
  24
  25 end-sanitize-v850e
  26 Tue Sep 16 22:14:01 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  27
  28         * simops.c (trace_output): Add result argument.
  29         (trace_result): New function.  Simpler version of trace_output,
  30         assumes trace needed.
  31         (trace_output): Call trace_result.
  32         (trace_output): For IMM_REG_REG, trace correct register.
  33         (trace_input): Add case for 16bit immediates.
  34         (OP_600, OP_640, OP_680, OP_6C0, OP_6A0): Use.
  35
  36         * sim-main.h (TRACE_ALU_INPUT, TRACE_ALU_RESULT): Define.
  37         (trace_values, trace_name, trace_pc, trace_num_values): Make
  38         global.
  39         (GR, SR): Define.
  40
  41         v850.insn (movea, stsr): Use.
  42 start-sanitize-v850e
  43         (sxb, sxh, zxb, zxh): Ditto.
  44 end-sanitize-v850e
  45
  46 Tue Sep 16 21:14:01 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  47
  48         * simops.c: Move "movea" from here.
  49         * v850.igen: To here.
  50
  51         * v850.igen (simm16): Define, sign extend imm16.
  52         (uimm16): Define, no sign extension.
  53         (addi, andi, movea, movhi, mulhi, ori, satsubi, xori): Use.
  54
  55 start-sanitize-v850e
  56         * simops.c: Move "sxh", "switch", "sxb", "callt", "dispose",
  57         "mov32" from here.
  58         * v850.igen: To here.
  59         (switch): Fix off by two error in NIA calc.
  60
  61 end-sanitize-v850e
  62 Tue Sep 16 15:14:01 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  63
  64         * simops.c (trace_pc, trace_name, trace_values, trace_num_values):
  65         New static globals.
  66         (trace_input): Just save pc, name and values for trace_output.
  67         (trace_output): Write trace values to a buffer.  Use
  68         trace_one_insn to print trace info and buffer.
  69         (SIZE_OPERANDS, SIZE_LOCATION): Delete.
  70
  71 Tue Sep 16 09:02:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  72
  73         * sim-main.h (struct _sim_cpu): Add psw_mask so that reserved bits
  74         can be masked out.
  75
  76         * simops.c (OP_2007E0, OP_4007E0): Move "ldsr", "stsr"
  77         instructions from here.
  78         * v850.igen (ldsr, stsr): To here.  Mask out reserved bits when
  79         setting PSW.
  80
  81         * interp.c (sim_open): Set psw_mask if machine known.
  82
  83 Tue Sep 16 10:20:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  84
  85 start-sanitize-v850e
  86         * v850-dc: Add rule to diferentiate between breakpoint and divh.
  87         * v850.igen (break): New instruction, breakpoint simulator.
  88
  89 end-sanitize-v850e
  90         * v850.igen (breakpoint): Enable.  Change to a 32bit instruction.
  91
  92 start-sanitize-v850e
  93 Mon Sep 15 18:44:05 1997  Jim Wilson  <wilson@cygnus.com>
  94
  95         * simops.c (Multiply64): Don't store into register zero.
  96
  97 end-sanitize-v850e
  98 Tue Sep 16 09:02:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
  99
 100         * Makefile.in (semantics.o): Add dependency.
 101
 102         * sim-main.h (SAVE_1, SAVE_2): Perform backward compatible save,
 103         do not adjust CIA/NIA.
 104
 105 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 106
 107 start-sanitize-v850eq
 108         * simops.c (OP_300, OP_400, OP_70): Make behavour depend on PSW[US].
 109
 110         * simops.c: Move "divun", "sld.bu", "divhn", "divhun", "divn",
 111         "divun", "pushml" code from here to v850.igen.
 112         (divun): Make global.
 113         (type3_regs): Make global
 114
 115         * v850.igen: Move simops.c code to here.
 116
 117         * interp.c (sim_create_inferior): For v850eq set US bit by
 118         default.
 119
 120 end-sanitize-v850eq
 121 start-sanitize-v850e
 122         * interp.c (sim_open): Don't set arch, now set by
 123         sim_analyze_program.
 124
 125 end-sanitize-v850e
 126         * configure: Regenerated to track ../common/aclocal.m4 changes.
 127
 128 Mon Sep 15 14:39:34 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 129
 130         * simops.c (op_types): Move from here.
 131         sim-main.h: To here.
 132
 133         * sim-main.h (trace_input, trace_output), simops.c: Make global.
 134
 135         * simops.c (OP_60): Move "jmp" code from here.
 136         * v850.igen (jmp): To here.
 137
 138 start-sanitize-v850eq
 139         * simops.c (OP_60): Move "sld.bu" code from here.
 140         * v850.igen (sld.bu): To here.
 141
 142 end-sanitize-v850eq
 143 Fri Sep 12 15:11:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 144
 145 start-sanitize-v850eq
 146         * v850.igen (prepare, ...): Add to v850eq architecture.
 147
 148 end-sanitize-v850eq
 149 start-sanitize-v850e
 150         * interp.c (sim_open): Default to v850eq.
 151
 152 end-sanitize-v850e
 153 start-sanitize-v850eq
 154
 155         * interp.c (sim_open): Default to v850e.
 156 end-sanitize-v850eq
 157         * sim-main.h (signal.h): Include.
 158
 159         * v850.igen (illegal): Report/halt illegal instructions.
 160
 161         * Makefile.in (SIM_EXTRA_CFLAGS): Add SIM_RESERVED_BITS.
 162
 163         * configure.in: Add reserved bits option.
 164         * configure: Regenerate.
 165
 166 Thu Sep 11 08:40:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 167
 168         * interp.c (sim_open): Use sim_do_commandf instead of asprintf.
 169
 170         * sim-main.h (INSN_NAME):
 171
 172         * Makefile.in (INCLUDE): Add SIM_EXTRA_DEPS.
 173         (SIM_EXTRA_DEPS): Add itable.h
 174         (tmp-gencode): Does not depend on simops.h
 175
 176         * sim-main.h (itable.h): Include.
 177         (MAX_INSNS, INSN_NAME): Define.
 178
 179         * interp.c: Compute inttype from the interrupt_names index that
 180         was passed in.
 181
 182 Wed Sep 10 10:25:40 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 183
 184         * simops.c (trace_input): Use trace_printf instead of
 185         sim_io_printf.
 186         (trace_output): Ditto.
 187         (trace_input): Only trace when TRACE_ALU_P.  Delete code
 188         disasembling instruction.
 189         (trace_output): Only trace when TRACE_ALU_P.
 190
 191 Tue Sep  9 01:29:50 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 192
 193         * simops.c (trace_input, trace_output): Use sim_io_printf.
 194         (OP_620): Pass correct argument to trace.
 195         (OP_E607E0): Ditto.
 196         (trace_input): Obtain prog_bfd, text_start et.al from simulator
 197         struct.
 198
 199 Mon Sep  8 21:03:52 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 200
 201         * v850.igen: New file.
 202         * v850-dc: New file.
 203
 204 Mon Sep  8 18:33:04 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 205
 206
 207         * sim-main.h (SEXT16): Delete, use EXTEND16.
 208         (SEXT8): Delete, use EXTEND8.
 209         (SEXT32): Delete, used?
 210         (SEXT40, SEXT44, SEXT64): Use UNSIGNED64 for constants, not ...LL.
 211         (WITH_TARGET_WORD_MSB): Define as 31. v850 little bit endian.
 212
 213         * simops.c: Use EXTEND15 from sim-bits instead of SEXT16.
 214
 215         * sim-main.h (DEBUG_TRACE, DEBUG_VALUES, v850_debug): Delete,
 216         replace with TRACE_INSN_P and TRACE_ALU_P.
 217
 218         * simops.c (trace_input, trace_output): Update.
 219
 220         * interp.c (sim_engine_run): Delete.
 221         (lookup_hash): Delete.
 222         (sim_open): Do not fill hash table.
 223         (sim_trace): Delete.
 224
 225 Fri Sep  5 17:04:48 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 226
 227         * simops.c (OP_FFFF): Use sim_engine_halt.
 228         (OP_12007E0): Ditto.
 229         (OP_10007E0): Ditto.
 230
 231         * sim-main.h (struct sim_cpu): Delete member exception. Using
 232         sim-engine et.al.
 233
 234         * interp.c (sim_info): Do not do anything in sim-info.
 235         (sim_stop): Delete, replace with sim-stop.
 236         (sim_stop_reason): Delete, replace with sim-reason.
 237
 238         * sim-main.h (WITH_WATCHPOINTS): Define.
 239         (WITH_MODULO_MEMORY): Define
 240
 241         * Makefile.in (SIM_OBJS): Add sim-resume, sim-watch, sim-stop,
 242         sim-reason.
 243
 244         * interp.c (enum interrupt_cond_type): Delete.
 245         (struct interrupt_generator): Delete.
 246         (enum interrupt_type): Drop int_none.
 247         (sim_open): Initialize WATCHPOINT module.
 248         (sim_resume, sim_run): Rename sim_resume to sim_run.
 249         (sim_engine_run): Replace interrupt code with call to sim-events.
 250         (sim_set_interrupt): Delete.
 251         (sim_parse_number): Delete.
 252
 253 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
 254
 255         * configure: Regenerated to track ../common/aclocal.m4 changes.
 256
 257 Thu Sep  4 18:11:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 258
 259         * simops.c (fetch_argv): New function, fetch a arg vector from
 260         simulator memory.
 261
 262         * configure.in: Check for fork, execve, execv.
 263         * configure: Regenerate.
 264
 265         * interp.c (sim_store_register, sim_fetch_register): Use H2T_4 and
 266         T2H_4 for byte swapping.
 267
 268         * sim-main.h, interp.c (get_word, get_half, get_byte, put_word,
 269         put_half, put_byte): Delete.
 270
 271         * Makefile.in (SIM_OBJS): Add sim-memopt.o module.
 272
 273         * sim-main.h (load_mem, store_mem): Redefine as macros.
 274         (IMEM, IMEM_IMMED): New macros - fetch instructions.
 275
 276         * simops.c (OP_10007E0): For SYS_read, SYS_write, SYS_open
 277         transfer data via a buffer.
 278         (fetch_str): New function, fetch string from memory.
 279
 280         * Makefile.in (SIM_OBJS): Add sim-hrw.o module.
 281
 282         * interp.c (sim_open): Establish memory maps using sim-memopt.c
 283         via sim_do_command.
 284         (sim_do_command): Print error if memory-map command is used. Call
 285         sim_args_command.
 286         (map): Delete, replaced by sim-core.
 287         (sim_memory_init): Delete, replaced by sim-core.
 288         (sim_set_memory_map): Delete, replaced by sim-memopt.
 289         (load_mem): Delete, replaced by sim-core.
 290         (store_mem): Delete, replaced by sim-core.
 291         (sim_write): Delete, replaced by sim-hrw.
 292         (sim_read): Delete, replaced by sim-hrw.
 293
 294         * sim-main.h (struct sim_state): Remove memory members, using
 295         sim-core.c
 296
 297 Wed Sep  3 10:18:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 298
 299         * sim-main.h: Replace SIM_HAVE_FLATMEM with mem ptr.
 300         * interp.c (map): Do not add to a void pointer.
 301
 302         * Makefile.in (INCLUDE): Add sim-main.h
 303
 304         * configure.in: Check for time.h
 305         * configure: Re-generate.
 306
 307         * interp.c (struct interrupt_generator): Make time unsigned long,
 308         address SIM_ADDR.
 309         (sim_resume): Make oldpc SIM_ADDR.
 310         (struct hash_entry): Make mask/opcode unsigned.
 311
 312         * v850_sim.h (struct simops ): Make opcode and mask unsigned.
 313
 314         * simops.c (utime.h): Include if available.
 315         (OP_10007E0): Check for UTIME function.
 316         (divun): Put parentheses around shift argument.
 317         (OP_640): Put parentheses around shift argument, was wrong.
 318         (OP_107F0): Return something.
 319
 320         * interp.c (sim_parse_number): Use strtoul not strtol.
 321         (sim_resume): Use sim_elapsed_time_get to keep track of the time.
 322
 323         * configure.in (SIM_AC_OPTION_WARNINGS): Add.
 324         (SIM_AC_OPTION_ENDIAN): Set to hardwired big.
 325         (SIM_AC_OPTION_HOST_ENDIAN): Add.
 326         (AC_CHECK_FUNCS): Add utime.
 327         (AC_CHECK_HEADERS): Add stdlib.h, string.h, strings.h, utime.h
 328         configure: Regenerate.
 329
 330
 331         * Makefile.in (SIM_RUN_OBJS): Use nrun.o.
 332         (SIM_OBJS): Add sim-io.o, sim-hload.o, sim-utils.o, sim-options.o,
 333         sim-config.o, sim-module.o, sim-events.o, sim-core.o,
 334         sim-endian.o, sim-engine.o, sim-trace.o, sim-profile.o
 335         (SIM_ENDIAN, SIM_WARNGINS): Define.
 336
 337         * simops.c (OP_10007E0): Use sim_io_* for transfers.
 338
 339         * interp.c (sim_resume): Pass sd around.
 340
 341         * simops.c (sim-main.h): Include.
 342
 343         * gencode.c (write_template): Generate #include sim-main.h.
 344         (write_opcodes): Ditto.
 345
 346         * interp.c (prog_bfd, prog_bfd_was_opened_p): Delete.
 347         (v850_callback): Ditto.
 348         (sim_kind, myname): Ditto.
 349         (lookup_hash): Pass SD. Use sim_io_error.
 350         (sim_set_memory_map): Pass in SD, use.
 351         (init_system): Pass in SD, use.
 352         (sim_open): Update.
 353         (sim_set_profile): Delete.
 354         (sim_set_profile_size): Delete.
 355         (do_interrupt): Pass in SD, use.
 356         (sim_info): Use sim_io_printf.
 357         (sim_create_inferior): Reset registers.  Set PC from prog_bfd
 358         argument.
 359         (sim_load): Delete, use common/sim-hload.c
 360         (sim_size): Rename to sim_memory_init.
 361         (sim_write): Remove call to init_system.
 362         (init_system): Delete.
 363         (sim_set_callbacks): Delete.
 364         (sim_set_interrupt): Pass in SD, use.
 365         (start_time): Delete.
 366
 367         * v850_sim.h: Remove everything except `struct simops' from here.
 368         * sim-main.h: Move most to here.
 369         * gencode.c: Move #includes to here.
 370
 371         * sim-main.h(struct _sim_cpu): Rename struct _state.
 372         (#define PC, et.al.): Update
 373         (v850_callback): Delete.  Replaced with SIM_DESC arg.
 374         (int8, uint8, int16, uint16, int32, uint32): Define types using
 375         unsigned8 et.al from common/sim-types.h.
 376         * sim-main.h (State): Define as STATE_CPU.
 377
 378 Mon Sep  1 12:07:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 379
 380         * configure.in: Check for time, chmod.
 381         * configure: Regenerate.
 382         * simops.c (SYS_time, SYS_chmod): Use HAVE_TIME, HAVE_CHMOD.
 383
 384         * simops.c (../../libgloss/v850/sys/syscall.h): Include instead of
 385         sys/syscall.h.
 386         (OP_10007E0): Check the existance each SYS_* macro independantly.
 387
 388         * v850_sim.h (SIGQUIT, SIGTRAP): Only define if missing.
 389
 390 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 391
 392         * configure: Regenerated to track ../common/aclocal.m4 changes.
 393         * config.in: Ditto.
 394
 395 Tue Aug 26 10:42:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 396
 397         * interp.c (sim_kill): Delete.
 398         (sim_create_inferior): Add ABFD argument.
 399         (sim_load): Move setting of PC from here.
 400         (sim_create_inferior): To here.
 401
 402 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 403
 404         * configure: Regenerated to track ../common/aclocal.m4 changes.
 405         * config.in: Ditto.
 406
 407 Mon Aug 25 11:31:23 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 408
 409         * interp.c (sim_open): Add ABFD argument.
 410
 411 start-sanitize-v850e
 412 Fri Aug 22 10:39:28 1997  Nick Clifton  <nickc@cygnus.com>
 413
 414         * simops.c (bsh): Only set CY flag if either of the bottom
 415         bytes is zero.
 416
 417         * simops.c (prepare, dispose): Lower numbered
 418         registers go to higher numbered address.
 419
 420         * simops.c (unsigned divide instructions): S bit set if result has
 421         top bit set.
 422
 423 start-sanitize-v850eq
 424         * simops.c (pushml, pushmh, popml, popmh): Lower numbered
 425         registers go to higher numbered address.
 426 end-sanitize-v850eq
 427 end-sanitize-v850e
 428
 429 Wed Aug 20 13:56:35 1997  Nick Clifton  <nickc@cygnus.com>
 430
 431         * simops.c (OP_107E0, OP_107F0, OP_307E0, OP_307F0): Use correct
 432         interpretation of SR bit in list18 structure.
 433 start-sanitize-v850eq
 434         (divn, divun): New functions to perform N step divide functions.
 435 end-sanitize-v850eq
 436
 437 start-sanitize-v850eq
 438 Mon Aug 18 10:59:02 1997  Nick Clifton  <nickc@cygnus.com>
 439
 440         * simops.c (OP_300, OP_400, OP_60, OP_70): Support variant opcodes
 441         with US bit set in the PSW.
 442 end-sanitize-v850eq
 443
 444 Wed Aug 13 19:06:55 1997  Nick Clifton  <nickc@cygnus.com>
 445
 446         * interp.c (sim_resume): Opcode functions return amount to be
 447         added to PC and all opcodes take a standard format in the OP[]
 448         array.
 449
 450         (do_format_*): Functions removed.
 451
 452         * v850_sim.h (SP, EP): New register mnemonics.
 453
 454         * gencode.c (write_header): Functions prototypes return an
 455         integer.
 456
 457         * simops.c: Opcode functions return amount to be added to PC.
 458
 459 start-sanitize-v850e
 460         * v850_sim.h (CTPC, CTPSW, CTBP): New register mnemonics.
 461
 462         * simops.c: Add support for v850e instructions.
 463
 464 end-sanitize-v850e
 465
 466 start-sanitize-v850eq
 467         * simops.c: Add support for v850eq instructions.
 468 end-sanitize-v850eq
 469
 470 Tue May 20 10:24:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 471
 472         * interp.c (sim_open): Add callback argument.
 473         (sim_set_callbacks): Delete SIM_DESC argument.
 474
 475 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 476
 477         * configure: Regenerated to track ../common/aclocal.m4 changes.
 478
 479 Wed Apr 23 17:20:16 1997  Doug Evans  <dje@canuck.cygnus.com>
 480
 481         * interp.c (prog_bfd_was_opened_p): New static local.
 482         (prog_bfd): New global variable.
 483         (sim_open): Undo patch to add -E support.
 484         (sim_close): Close prog_bfd if sim_load opened it.
 485         (sim_load): Record bfd of loaded file in prog_bfd.
 486         * simops.c (prog_bfd): Renamed from exec_bfd.
 487
 488 Fri Apr 18 14:17:12 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 489
 490         * interp.c (sim_stop): Stub function.
 491
 492 Thu Apr 17 03:53:18 1997  Doug Evans  <dje@canuck.cygnus.com>
 493
 494         * Makefile.in (SIM_OBJS): Add sim-load.o.
 495         * interp.c (sim_kind, myname): New static locals.
 496         (sim_open): Set sim_kind, myname.  Ignore -E arg.
 497         (sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
 498         load file into simulator.  Set start address from bfd.
 499         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 500
 501 Wed Apr 16 19:53:55 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 502
 503         * simops.c (OP_10007E0): Only provide system calls SYS_execv,
 504         SYS_wait, SYS_wait, SYS_utime, SYS_time if defined by the host.
 505
 506 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 507
 508         * configure: Regenerated to track ../common/aclocal.m4 changes.
 509         * config.in: Ditto.
 510
 511 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 512
 513         * interp.c (sim_open): New arg `kind'.
 514
 515         * configure: Regenerated to track ../common/aclocal.m4 changes.
 516
 517 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 518
 519         * configure: Regenerated to track ../common/aclocal.m4 changes.
 520
 521 Wed Mar 19 01:14:00 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 522
 523         * configure: Regenerated to track ../common/aclocal.m4 changes.
 524
 525 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 526
 527         * configure: Re-generate.
 528
 529 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 530
 531         * configure: Regenerate to track ../common/aclocal.m4 changes.
 532
 533 Thu Mar 13 13:00:54 1997  Doug Evans  <dje@canuck.cygnus.com>
 534
 535         * interp.c (sim_open): New SIM_DESC result.  Argument is now
 536         in argv form.
 537         (other sim_*): New SIM_DESC argument.
 538
 539 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 540
 541         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 542         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 543         * configure.in: sinclude ../common/aclocal.m4.
 544         * configure: Regenerated.
 545
 546 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 547
 548         * configure configure.in Makefile.in:  Update to new configure
 549         scheme which is more compatible with WinGDB builds.
 550         * configure.in:  Improve comment on how to run autoconf.
 551         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 552         * Makefile.in:  Use autoconf substitution to install common
 553         makefile fragment.
 554
 555 Mon Jan 20 16:05:34 1997  Michael Meissner  <meissner@tiktok.cygnus.com>
 556
 557         * simops.c (OP_{E0,2E0,6E0}): The multiply operations sign extend,
 558         not zero extend.
 559
 560 Tue Jan 14 17:06:03 1997  Stu Grossman  (grossman@critters.cygnus.com)
 561
 562         * simops.c:  Put ifdefs around things to make MSVC happy.  Get rid
 563         of unistd.h.  Disable SYS_stat, SYS_chown, SYS_time, SYS_times,
 564         SYS_gettimeofday and SYS_utime from MSVC.
 565
 566 Tue Dec 31 18:11:13 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 567
 568         * simops.c (OP_10007E0): Know that kill encodes the signal number
 569         via: 0xdead0000 | signal and turn it back into a signal.
 570
 571 Fri Dec 27 14:44:06 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 572
 573         * v850_sim.h (SIG_V850_EXIT): Define as -1.
 574
 575         * interp.c (sim_open): Cast calloc function.
 576         (sim_stop_reason): If signal is SIG_V850_EXIT, inform gdb the
 577         program exited with the appropriate exit code.
 578         (sim_set_interrupt): Declare buildargv.
 579
 580         * simops.c (OP_10007E0): Make exit signal normal exit.  Make time
 581         type correct and work on big endian systems.
 582
 583 Wed Nov 20 02:18:44 1996  Doug Evans  <dje@canuck.cygnus.com>
 584
 585         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 586         (SIM_OBJS,SIM_EXTRA_CFLAGS,SIM_EXTRA_CLEAN): Define.
 587         * configure.in: Simplify using macros in ../common/aclocal.m4.
 588         Call AC_CHECK_HEADERS(unistd.h).
 589         * configure: Regenerated.
 590         * config.in: New file.
 591         * simops.c: #include "config.h".  #include <unistd.h> if present.
 592
 593 Sun Nov  3 23:02:54 1996  Stan Shebs  <shebs@andros.cygnus.com>
 594
 595         * v850_sim.h (State): New slots dummy_mem, pending_nmi.
 596         (EIPC, etc): New macros for system registers.
 597         * simops.c, interp.c: Use everywhere.
 598
 599         * interp.c: Add support for interrupts issued by interrupt
 600         generators, either PC- or time-based.  Controlled by simulator
 601         command "sim interrupt".
 602
 603         * interp.c: Add support for variable-size allocation of memory,
 604         via simulator command "sim memory-map".
 605         (map): Issue SIGSEGV for references to invalid memory regions.
 606
 607 Thu Oct 31 14:44:10 1996  Gavin Koch  <gavin@cygnus.com>
 608
 609         * simops.c: Include <sys/time.h> for struct timeval and
 610         struct timezone.
 611
 612 Wed Oct 30 08:49:10 1996  Jeffrey A Law  (law@cygnus.com)
 613
 614         * simops.c (OP_10007E0): Handle SYS_times and SYS_gettimeofday.
 615
 616         * simops.c (OP_10007E0): Handle SYS_time.
 617
 618 Tue Oct 29 14:22:55 1996  Jeffrey A Law  (law@cygnus.com)
 619
 620         * simops.c: Include <sys/stat.h>.
 621         (OP_10007E0): Handle SYS_stat.
 622
 623 Thu Oct 24 12:26:35 1996  Jeffrey A Law  (law@cygnus.com)
 624
 625         * simops.c (OP_10007E0): Don't declare errno.
 626
 627         * simops.c (OP_500): Mask off low bit in displacement
 628         for sld.w.
 629         (OP_501): Similarly.
 630
 631         * simops.c (OP_500): Fix displacement handling for sld.w.
 632         (OP_501): Similarly for sst.w.
 633
 634         * simops.c (trace_input): Remove all references to SEXT7.
 635         (OP_300, OP_400, OP_500, OP_380, OP_480, OP_501): Displacement
 636         is zero extended for sst/sld instructions.
 637         * v850_sim.h (SEX7): Delete.  It's no longer needed (and it
 638         was incorrect anyway).
 639
 640 Thu Oct 24 10:33:33 1996  Stu Grossman  (grossman@critters.cygnus.com)
 641
 642         * Makefile.in:  Get rid of srcroot.  Set all INSTALL macros via
 643         autoconf.
 644         * gencode.c (write_opcodes):  Pad operands field to account for
 645         MSVC braindamage.
 646         * simops.c:  Include errno.h.  Exclude SYS_chown, since MSVC
 647         doesn't support it.  (Why is this here in the first place?!?)
 648         * v850_sim.h:  Get rid of 64 bit defs.  Also, get rid of #elif's.
 649         Change number of operands in struct simops from 9 to 6.  Define
 650         SIGTRAP and SIGQUIT for MSVC.
 651
 652 Tue Oct 15 16:19:51 1996  Stu Grossman  (grossman@critters.cygnus.com)
 653
 654         * interp.c (MEM_SIZE):  It's now bytes, not a power of 2.
 655         * (map):  Add support for external mem in the 1->2 meg range.
 656         Also, abort() when memory access is way out of bounds.  (Better to
 657         die than to give wrong result.  (This will be fixed later.))
 658         * (sim_size):  MEM_SIZE is now bytes, not shift factor.
 659
 660 Tue Oct  1 15:53:24 1996  Gavin Koch <gavin@cygnus.com>
 661
 662         * simops.c (trace_input): Swapped order of operands for output
 663         output of OP_IMM_REG.  Changed the fetching of the operands for
 664         OP_LOAD32, and OP_STORE32 to work like op-function.
 665
 666 Mon Sep 30 15:46:33 1996  Stu Grossman  (grossman@critters.cygnus.com)
 667
 668         * interp.c:  Move includes of remote-sim.h and callback.h to
 669         v850-sim.h.
 670         * (lookup_hash): Add PC to report of hash failure.
 671         * (map load_mem store_mem):  New memory subsystem.  Models V851
 672         memory system.
 673         * (sim_write sim_read):  Use new memory subsystem.
 674         * (sim_resume):  Don't load and save PC into EIPC anymore.  Needed
 675         to make user-defined traps work right.
 676         * simops.c (OP_*):  Use new memory subsystem.
 677         * (OP_14007E0 (reti)):  Implement reti.
 678         * (OP_14996E0 (trap)):  Implement user-defined traps.  Move I/O to
 679         trap 31.  Use new memory subsystem.
 680         * v850_sim.h:  Prototypes for load_mem, store_mem and map.  Use
 681         load_mem in RLW macro.
 682
 683 Fri Sep 27 18:34:09 1996  Stu Grossman  (grossman@critters.cygnus.com)
 684
 685         * gencode.c (write_opcodes):  Output hex values for opcode mask
 686         and patterns.
 687         * interp.c (sim_resume):  Save and restore PC from the appropriate
 688         register.
 689         * (sim_fetch_register sim_store_register):  Fix byte-order problem
 690         with reading and writing registers.
 691         * simops.c (OP_FFFF):  Implement pseudo-breakpoint insn.
 692
 693 Fri Sep 27 17:42:37 1996  Jeffrey A Law  (law@cygnus.com)
 694
 695         * simops.c (trace_input): Fix thinko.
 696
 697 Wed Sep 18 09:54:12 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 698
 699         * simops.c (exec_bfd): Rename from sim_bfd.
 700         (trace_input): Ditto.
 701
 702 Thu Sep 12 12:03:05 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 703
 704         * simops.c (trace_input): Use find_nearest_line to print line
 705         number, function name or file name of PC.
 706
 707 Wed Sep 11 16:44:37 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 708
 709         * simops.c: Add tracing support.  Use SEXTxx macros instead of
 710         doing hardwired shifts.
 711
 712         * configure.in (--enable-sim-cflags): Add switch to add additional
 713         flags to simulator buld.  If --enable-sim-cflags=trace, turn on
 714         tracing.
 715         * configure: Regenerate.
 716
 717         * Makefile.in: Don't require a VPATH capable make if configuring
 718         in the same directory.  Don't use CFLAGS for configuration flags.
 719         Add flags from --enable-sim-cflags.  Support canadian cross
 720         builds.  Rebuild whole simulator if include files change.
 721
 722         * interp.c (v850_debug): New global for debugging.
 723         (lookup_hash,sim_size,sim_set_profile): Use
 724         printf_filtered callback, instead of calling printf directly.
 725         (sim_{open,trace}): Enable tracing if -t and compiled for tracing.
 726
 727         * v850_sim.h: Use limits.h to set the various sized types.
 728         (SEXT{5,7,16,22}): New macros.
 729
 730 Mon Sep  9 20:50:46 1996  Jeffrey A Law  (law@cygnus.com)
 731
 732         * interp.c (hash): Make this an inline function
 733         when compiling with GCC.  Simplify.
 734         * simpos.c: Explicitly include "sys/syscall.h".  Remove
 735         some #if 0'd code.  Enable more emulated syscalls.
 736
 737 Wed Sep  4 01:48:55 1996  Jeffrey A Law  (law@cygnus.com)
 738
 739         * interp.c: Fix sign bit handling for add and sub instructions.
 740
 741 Tue Sep  3 10:20:30 1996  Jeffrey A Law  (law@cygnus.com)
 742
 743         * gencode.c: Fix various indention & style problems.
 744         Remove test code.  Remove #if 0 code.
 745         * interp.c: Provide prototypes for all static functions.
 746         Fix minor indention problems.
 747         (sim_open, sim_resume): Remove unused variables.
 748         (sim_read): Return type is "int".
 749         * simops.c: Remove unused variables.
 750         (divh): Make result of divide-by-zero zero.
 751         (setf): Initialize result to keep compiler quiet.
 752         (sar instructions): These just clear the overflow bit.
 753         * v850_sim.h: Provide prototypes for put_byte, put_half
 754         and put_word.
 755
 756         * interp.c: OP should be an array of 32bit operands!
 757         (v850_callback): Declare.
 758         (do_format_5): Fix extraction of OP[0].
 759         (sim_size): Remove debugging printf.
 760         (sim_set_callbacks): Do something useful.
 761         (sim_stop_reason): Gross hacks to get c-torture running.
 762         * simops.c: Simplify code for computing targets of bCC
 763         insns.   Invert 's' bit if 'ov' bit is set for some
 764         instructions.  Fix 'cy' bit handling for numerous
 765         instructions.  Make the simulator stop when a halt
 766         instruction is encountered.  Very crude support for
 767         emulated syscalls (trap 0).
 768         * v850_sim.h: Include "callback.h" and declare
 769         v850_callback.  Items in the operand array are 32bits.
 770
 771 Sun Sep  1 22:35:35 1996  Jeffrey A Law  (law@cygnus.com)
 772
 773         * interp.c (sim_resume): Fix code to check for a format 3
 774         opcode.
 775         * simops.c: bCC insns only argument is a constant, not a
 776         register value (duh...)
 777
 778 Fri Aug 30 10:33:49 1996  Jeffrey A Law  (law@cygnus.com)
 779
 780         * simops.c: Fix "not1" and "set1".
 781
 782         * simops.c: Don't forget to initialize temp for
 783         "ld.h" and "ld.w"
 784
 785         * interp.c: Remove various debugging printfs.
 786
 787         * simops.c: Fix satadd, satsub boundary case handling.
 788
 789         * interp.c (hash): Fix.
 790         * interp.c (do_format_8): Get operands correctly and
 791         call the target function.
 792         * simops.c: Rough cut at "clr1", "not1", "set1", and "tst1".
 793
 794 Thu Aug 29 13:53:29 1996  Jeffrey A Law  (law@cygnus.com)
 795
 796         * interp.c (do_format_4): Get operands correctly and
 797         call the target function.
 798         * simops.c: Rough cut at "sld.b", "sld.h", "sld.w", "sst.b",
 799         "sst.h", and "sst.w".
 800
 801         * v850_sim.h: The V850 doesn't have split I&D spaces.  Change
 802         accordingly.  Remove many unused definitions.
 803         * interp.c: The V850 doesn't have split I&D spaces.  Change
 804         accordingly.
 805         (get_longlong, get_longword, get_word): Deleted.
 806         (write_longlong, write_longword, write_word): Deleted.
 807         (get_operands): Deleted.
 808         (get_byte, get_half, get_word): New functions.
 809         (put_byte, put_half, put_word): New functions.
 810         * simops.c: Remove unused functions.  Rough cut at
 811         "ld.b", "ld.h", "ld.w", "st.b", "st.h", "st.w" insns.
 812
 813         * v850_sim.h (struct _state): Remove "psw" field.  Add
 814         "sregs" field.
 815         (PSW): Remove bogus definition.
 816         * simops.c: Change condition code handling to use the psw
 817         register within the sregs array.  Handle "ldsr" and "stsr".
 818
 819         * simops.c: Handle "satadd", "satsub", "satsubi", "satsubr".
 820
 821         * interp.c (do_format_5): Get operands correctly and
 822         call the target function.
 823         (sim_resume): Don't do a PC update for format 5 instructions.
 824         * simops.c: Handle "jarl" and "jmp" instructions.
 825
 826         * simops.c: Fix minor typos.  Handle "cmp", "setf", "tst"
 827         "di", and "ei" instructions correctly.
 828
 829         * interp.c (do_format_3): Get operands correctly and call
 830         the target function.
 831         * simops.c: Handle bCC instructions.
 832
 833         * simops.c: Add condition code handling to shift insns.
 834         Fix minor typos in condition code handling for other insns.
 835
 836         * Makefile.in: Fix typo.
 837         * simops.c: Add condition code handling to "sub" "subr" and
 838         "divh" instructions.
 839
 840         * interp.c (hash): Update to be more accurate.
 841         (lookup_hash): Call hash rather than computing the hash
 842         code here.
 843         (do_format_1_2): Handle format 1 and format 2 instructions.
 844         Get operands correctly and call the target function.
 845         (do_format_6): Get operands correctly and call the target
 846         function.
 847         (do_formats_9_10): Rough cut so shift ops will work.
 848         (sim_resume): Tweak to deal with format 1 and format 2
 849         handling in a single funtion.  Don't update the PC
 850         for format 3 insns.  Fix typos.
 851         * simops.c: Slightly reorganize.  Add condition code handling
 852         to "add", "addi", "and", "andi", "or", "ori", "xor", "xori"
 853         and "not" instructions.
 854         * v850_sim.h (reg_t): Registers are 32bits.
 855         (_state): The V850 has 32 general registers.  Add a 32bit
 856         psw and pc register too.  Add accessor macros
 857
 858         * Makefile.in, interp.c, v850_sim.h: Bring over endianness
 859         changes from the d10v simulator.
 860
 861         * simops.c: Add shift support.
 862
 863         * simops.c: Add multiply & divide support.  Abort for system
 864         instructions.
 865
 866         * simops.c: Add logicals, mov, movhi, movea, add, addi, sub
 867         and subr.  No condition codes yet.
 868
 869 Wed Aug 28 13:53:22 1996  Jeffrey A Law  (law@cygnus.com)
 870
 871         * ChangeLog, Makefile.in, configure, configure.in, v850_sim.h,
 872         gencode.c, interp.c, simops.c: Created.
 873