sim/d10v/ChangeLog

   1 Fri Mar 27 16:15:52 1998  Andrew Cagney  <cagney@b1.cygnus.com>
   2
   3         * configure: Regenerated to track ../common/aclocal.m4 changes.
   4
   5 Wed Mar 25 12:35:29 1998  Andrew Cagney  <cagney@b1.cygnus.com>
   6
   7         * configure: Regenerated to track ../common/aclocal.m4 changes.
   8
   9 Wed Mar 18 12:38:12 1998  Andrew Cagney  <cagney@b1.cygnus.com>
  10
  11         * configure: Regenerated to track ../common/aclocal.m4 changes.
  12
  13 Tue Feb 17 12:38:42 1998  Andrew Cagney  <cagney@b1.cygnus.com>
  14
  15         * interp.c (sim_store_register, sim_fetch_register): Pass in
  16         length parameter.  Return -1.
  17
  18 Mon Oct 27 14:43:33 1997  Fred Fish  <fnf@cygnus.com>
  19
  20         * (dmem_addr): If address is illegal or in I/O space, signal a bus
  21         error.  Allocate unified memory on demand.  Fix DMEM address
  22         calculations.
  23
  24 Mon Feb 16 10:27:53 1998  Andrew Cagney  <cagney@b1.cygnus.com>
  25
  26         * simops.c (OP_5F20): Implement "dbt".
  27         (OP_5F60): Implement "rtd".
  28
  29         * d10v_sim.h (DPC_CR): Define enum.
  30         (DBT_VECTOR_START): Define
  31         (DPSW, DPC): Define.
  32
  33 Fri Feb 13 15:15:58 1998  Andrew Cagney  <cagney@b1.cygnus.com>
  34
  35         * simops.c (move_to_cr): Sync regs[SP_IDX] with State.sp according
  36         to PSW:SM.
  37
  38         * d10v_sim.h (struct _state): Add sp, as holding area for SPI/SPU.
  39         (SP_IDX): Define.
  40
  41 Wed Feb 11 16:53:49 1998  Andrew Cagney  <cagney@b1.cygnus.com>
  42
  43         * simops.c (OP_5F00): Call error instead of abort for unknown
  44         syscalls.
  45
  46         * d10v_sim.h (enum): Define DPSW_CR.
  47
  48         * simops.c (move_to_cr): Mask out hardwired zero bits in DPSW.
  49
  50 Tue Feb 10 18:28:38 1998  Andrew Cagney  <cagney@b1.cygnus.com>
  51
  52         * interp.c (sim_write_phys): Delete.
  53         (sim_load): Call sim_load_file with sim_write and LMA.
  54
  55 Mon Feb  9 12:05:01 1998  Andrew Cagney  <cagney@b1.cygnus.com>
  56
  57         * interp.c: Rewrite xfer_mem so that it translates addresses as -
  58         0x00... - DMAP translated memory, 0x01... IMAP translated memory,
  59         0x10... - on-chip data, 0x11... - on-chip insn, 0x12... - unified
  60         memory.
  61         (pc_addr): Delete.
  62         (imem_addr): New function - translate IMEM address.
  63         (sim_resume): Use imem_addr to translate insn address, abort if
  64         translation failed.
  65         (sim_create_inferior): Write ARGV to memory using sim_write.  Pass
  66         argc/argv using r0/r1 not r2/r3.
  67         (sim_size): Do not initialize IMAP/DMAP here.
  68         (sim_open): Call sim_create_inferior and sim_size to initialize
  69         the system.
  70         (sim_create_inferior): Initialize IMAP/DMAP to hardware reset
  71         defaults.
  72         (init_system): Delete.
  73         (xfer_mem, sim_fetch_register, sim_store_register): Do not call
  74         init_system.
  75         (decode_pc): Check prog_bfd is defined before looking up .text
  76         section.
  77
  78 Sun Feb  1 16:47:51 1998  Andrew Cagney  <cagney@b1.cygnus.com>
  79
  80         * configure: Regenerated to track ../common/aclocal.m4 changes.
  81
  82 Sat Jan 31 18:15:41 1998  Andrew Cagney  <cagney@b1.cygnus.com>
  83
  84         * configure: Regenerated to track ../common/aclocal.m4 changes.
  85
  86 Sun Jan 25 22:23:01 1998  Michael Meissner  <meissner@cygnus.com>
  87
  88         * interp.c (sim_stop_reason): Exit status is now in r0, not r2.
  89
  90 Sat Jan 24 19:00:30 1998  Michael Meissner  <meissner@cygnus.com>
  91
  92         * d10v_sim.h (DEBUG_TRAP): New debug flag.
  93
  94         * simops.c (OP_5F00): If DEBUG_TRAP is on, turn traps 0-14 into
  95         printing the registers.
  96
  97 Thu Jan 22 17:54:01 1998  Michael Meissner  <meissner@cygnus.com>
  98
  99         * simops.c (op_types): New ABI, args are r0..r3, system call # is
 100         in r4.
 101         (trace_{in,out}put_func): Ditto.
 102         (OP_4900): Ditto.
 103         (OP_24800000): Ditto.
 104         (OP_4D00): Ditto.
 105         (OP_5F00): Ditto.
 106
 107 Thu Jan 22 14:30:36 1998  Fred Fish  <fnf@cygnus.com>
 108
 109         * interp.c (UMEM_SEGMENTS): New define, set to 128.
 110         (sim_size): Use UMEM_SEGMENTS rather than hardwired constant.
 111         (sim_close): Reset prog_bfd to NULL after closing it.  Also
 112         reset prog_bfd_was_opened_p after closing prog_bfd.
 113         (sim_load): Reset prog_bfd_was_opened_p after closing prog_bfd.
 114         (sim_create_inferior): Get start address from abfd not prog_bfd.
 115         (xfer_mem): Do bounds checking on addresses and return zero length
 116         read/write on bad addresses, rather than aborting.  Prepare to
 117         be able to handle xfers that cross segment boundaries, but not
 118         yet implemented.  Only emit debug message when d10v_debug is
 119         set as well as DEBUG being defined.
 120
 121 Mon Jan 19 22:26:29 1998  Doug Evans  <devans@seba>
 122
 123         * configure: Regenerated to track ../common/aclocal.m4 changes.
 124
 125 Mon Dec 15 23:17:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 126
 127         * configure: Regenerated to track ../common/aclocal.m4 changes.
 128         * config.in: Ditto.
 129
 130 Tue Dec  9 10:28:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 131
 132         * d10v_sim.h (RPT_S): Index cregs with RPT_S_CR not RPT_E_CR.
 133         (BPSW): Ditto for BPSW_CR and not PSW_CR.
 134
 135         * simops.c (OP_5F40): JMP to BPC instead of assigning PC directly.
 136
 137 Mon Dec  8 12:58:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 138
 139         * simops.c (OP_5F00): From Martin Hunt <hunt@cygnus.com>. Change
 140         reserved trap from 0 to 15. Add trap emulation code for 0-14.
 141
 142         * interp.c (sim_resume): From Martin Hunt <hunt@cygnus.com>. Check
 143         IBA for SDBT.
 144
 145         * d10v_sim.h (AE_VECTOR_START, RIE_VECTOR_START,
 146         SDBT_VECTOR_START, TRAP_VECTOR_START): Define.
 147
 148         * simops.c (OP_5F00): For "trap", mask out all but SM bit in PSW,
 149         use move_to_cr.
 150         (OP_5F00): For "trap", update BPSW with move_to_cr.
 151
 152 Fri Dec  5 15:31:17 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 153
 154         * d10v_sim.h (enum): Enumerate CR register names.
 155         (enum): Enumerate PSW bit values.
 156         (PSW): Obtain value uing move_from_cr.
 157         (MOD_S, MOD_E, BPSW): Make r-values.
 158         (move_from_cr, move_to_cr): Declare functions.
 159
 160         * interp.c (sim_fetch_register, sim_store_register): Use
 161         move_from_cr and move_to_cr for CR register transfers.
 162
 163         * simops.c (move_from_cr, move_to_cr): New functions.
 164         (OP_5F40): Move BPSW to PSW using move_to_cr and move_from_cr.
 165         (OP_5600): For "mvtc", use function move_to_cr.
 166         (OP_5200): For "mvfc", use function move_from_cr.
 167
 168 Fri Dec  5 13:33:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 169
 170         * simops.c (OP_5600): For "mvtc" MOD_E and MOD_S, ensure that the
 171         LSbit is zero.
 172
 173 Thu Dec  4 09:21:05 1997  Doug Evans  <devans@canuck.cygnus.com>
 174
 175         * configure: Regenerated to track ../common/aclocal.m4 changes.
 176
 177 Thu Dec  4 16:51:02 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 178
 179         * d10v_sim.h (struct _state): Add DM - PSW debug mask.
 180
 181         * simops.c (OP_5600): For "mvtc", save PSW.DM.
 182         (OP_5200): Ditto for "mvfc".
 183
 184 Wed Dec  3 17:27:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 185
 186         * d10v_sim.h (SEXT56): Define.
 187
 188         * simops.c (OP_4201): For "rac", sign extend 56 bit value before
 189         it is shifted.
 190
 191         * d10v_sim.h (MAX32, MIN32, MASK32, MASK40): Re-define using
 192         SIGNED64 macro.
 193
 194 Tue Dec  2 15:38:34 1997  Fred Fish  <fnf@cygnus.com>
 195
 196         * interp.c (sim_resume): Call do_2_short with LEFT_FIRST or
 197         RIGHT_FIRST, as appropriate, instead of hardcoded ints that
 198         don't match enum values.
 199
 200 Tue Dec  2 15:01:08 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 201
 202         * simops.c (OP_3A00): For "macu", perform multiply stage using 32
 203         bit rather than 16 bit precision.
 204         (OP_3C00): For "mulxu", store unsigned product in ACC.
 205         (OP_3800): For "msbu", subtract unsigned product from ACC,
 206         (OP_0): For "sub", compute carry by comparing inputs.
 207
 208 Tue Dec  2 11:04:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 209
 210         * simops.c (OP_1000): For "sub2w", compute carry by comparing
 211         inputs.
 212
 213 Mon Nov 17 20:57:21 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 214
 215         * simops.c (OP_1): Use 32 bit unsigned arithmetic for subtract,
 216         carry indicated by value > 0xffff.
 217
 218 Fri Nov 14 12:51:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 219
 220         * interp.c (sim_resume): Don't set up SIGINT handler using signal,
 221         handled by client.
 222         (sim_resume): Fix race condition of a direct assignment to
 223         stop_simulator, conditionally call sim_stop.
 224         (sim_stop_reason): Check stop_simulator returning SIGINT.  Clear
 225         stop_simulator ready for next sim_resume call.
 226         (sim_ctrl_c): Delete function.
 227
 228 Thu Nov 13 19:29:34 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 229
 230         * interp.c (sim_resume): For "REP", only check/update the PC when
 231         a branch instruction has not been executed.
 232
 233 Mon Nov 10 17:50:18 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 234
 235         * simops.c (OP_4201): "rachi". Sign extend bit 40 of ACC.  Sign
 236         extend bit 44 all constants.
 237         (OP_4201): Replace GCC specific 0x..LL with SIGNED64 macro.
 238
 239 Fri Oct 24 10:26:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 240
 241         * d10v_sim.h: Include sim-types.h.
 242         (uint8, in816, uiny16, int32, uint32, int64, uint64): Typedef
 243         using unsigned8 et.al. from sim-types.h.
 244         (SEXT32, SEXT40, SEXT44, SEXT60): Replace GCC specific 0x..LL with
 245         SIGNED64 macro.
 246
 247 Wed Oct 22 14:43:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 248
 249         * interp.c (sim_write_phys): New function, write to physical
 250         instead of virtual memory.
 251
 252         * interp.c (sim_load): Pass lma_p and sim_write_phys to
 253         sim_load_file.
 254
 255 Mon Oct 13 10:55:07 1997  Fred Fish  <cygnus.com>
 256
 257         * simops.c (OP_6A01): Change OP_POSTDEC to OP_POSTINC and move
 258         exception generation code to OP_6E01.
 259         (OP_6E01): Change OP_POSTINC to OP_POSTDEC and insert exception
 260         generation code.
 261
 262 Sat Oct 11 09:02:08 1997  Fred Fish  <fnf@cygnus.com>
 263
 264         * simops.c (OP_6401): postdecrement on r15 is OK, remove exception.
 265         (OP_6601): Ditto.
 266
 267 Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 268
 269         * configure: Regenerated to track ../common/aclocal.m4 changes.
 270
 271 Sat Sep 27 12:51:34 1997  Fred Fish  <fnf@cygnus.com>
 272
 273         * interp.c (pc_addr): Discard upper bit(s) of PC in case
 274         IMAP1 selects unified memory.
 275         * d10v_sim.h (INC_ADDR): Align MOD_E to increment before testing
 276         for end condition.
 277
 278 Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 279
 280         * configure: Regenerated to track ../common/aclocal.m4 changes.
 281
 282 Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 283
 284         * configure: Regenerated to track ../common/aclocal.m4 changes.
 285
 286 Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 287
 288         * configure: Regenerated to track ../common/aclocal.m4 changes.
 289
 290 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 291
 292         * configure: Regenerated to track ../common/aclocal.m4 changes.
 293
 294 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 295
 296         * configure: Regenerated to track ../common/aclocal.m4 changes.
 297
 298 Wed Sep 10 22:30:24 1997  Martin M. Hunt  <hunt@cygnus.com>
 299
 300         * interp.c (sim_resume): Increment PC at end of rep
 301         loop.
 302
 303         * simops.c (OP_4201): Fix rachi instruction.
 304
 305 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
 306
 307         * configure: Regenerated to track ../common/aclocal.m4 changes.
 308
 309 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 310
 311         * configure: Regenerated to track ../common/aclocal.m4 changes.
 312         * config.in: Ditto.
 313
 314 Tue Aug 26 10:37:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 315
 316         * interp.c (sim_kill): Delete.
 317         (sim_create_inferior): Add ABFD argument.
 318         (sim_load): Move setting of PC from here.
 319         (sim_create_inferior): To here.
 320         (start_address): Delete variable.
 321
 322 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 323
 324         * configure: Regenerated to track ../common/aclocal.m4 changes.
 325         * config.in: Ditto.
 326
 327 Mon Aug 25 15:39:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 328
 329         * interp.c (sim_open): Add ABFD argument.
 330
 331 Tue May 20 10:14:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 332
 333         * interp.c (sim_open): Add callback argument.
 334         (sim_set_callbacks): Remove SIM_DESC argument.
 335
 336 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 337
 338         * configure: Regenerated to track ../common/aclocal.m4 changes.
 339
 340 Tue Apr 22 10:29:23 1997  Doug Evans  <dje@canuck.cygnus.com>
 341
 342         * interp.c (sim_open): Undo patch to add -E support.
 343
 344 Fri Apr 18 13:39:01 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 345
 346         * interp.c (sim_stop): New function.
 347
 348 Thu Apr 17 02:42:00 1997  Doug Evans  <dje@canuck.cygnus.com>
 349
 350         * Makefile.in (SIM_OBJS): Add sim-load.o.
 351         * d10v_sim.h (exec_bfd): Rename to prog_bfd.
 352         * interp.c: #include bfd.h.
 353         (myname, sim_kind, start_address): New static locals.
 354         (prog_bfd_was_opened_p, prog_bfd): New static locals.
 355         (decode_pc): Update to use prog_bfd.
 356         (sim_open): Set sim_kind, myname.  Ignore -E arg.
 357         (sim_close): Close prog_bfd if simulator opened it.
 358         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 359         (sim_load): Return SIM_RC.  New arg abfd.  Set start address from bfd.
 360         Call sim_load_file to load file into simulator.
 361         * simops.c (trace_input_func): exec_bfd renamed to prog_bfd.
 362
 363 Wed Apr 16 16:12:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 364
 365         * simops.c (OP_5F00): Only provide system calls SYS_execv,
 366         SYS_wait, SYS_wait, SYS_utime, SYS_time if defined by the host.
 367
 368 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 369
 370         * configure: Regenerated to track ../common/aclocal.m4 changes.
 371         * config.in: Ditto.
 372
 373 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 374
 375         * interp.c (sim_open): New arg `kind'.
 376
 377         * configure: Regenerated to track ../common/aclocal.m4 changes.
 378
 379 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 380
 381         * configure: Regenerated to track ../common/aclocal.m4 changes.
 382
 383 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 384
 385         * configure: Re-generate.
 386
 387 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 388
 389         * configure: Regenerate to track ../common/aclocal.m4 changes.
 390
 391         * simops.c (OP_5F00): Remove old traps 1-3.  Make trap 15 the same
 392         as trap 0, which will be deprecated.  Only set errno, if an error
 393         in fact was returned.
 394
 395 Thu Mar 13 12:41:20 1997  Doug Evans  <dje@canuck.cygnus.com>
 396
 397         * interp.c: Delete redundant prototypes of sim_foo fns.
 398         (sim_open): New SIM_DESC result.  Argument is now in argv form.
 399         (other sim_*): New SIM_DESC argument.
 400
 401 Thu Mar 13 10:29:04 1997  Michael Meissner  <meissner@cygnus.com>
 402
 403         * simops.c (trace_{input,output}_func): Call flush_stdout from the
 404         callback functions.
 405         (OP_5F00): Ditto.
 406         (OP_6{4,6,C,A}01): Test for post decrement on the stack pointer.
 407         (OP_{1200,1000000,201,5FE0,1003,17001002}): Fix problems in
 408         setting the carry bit after an add or a subtract.
 409
 410 Wed Feb 12 16:04:15 1997  Michael Meissner  <meissner@cygnus.com>
 411
 412         * simops.c (OP_{1403,15002A02,3{0,4}0{0,1}}): Only use the bottom
 413         40 bits of accumulators.  Sign/zero extend as appropriate.
 414
 415 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 416
 417         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 418         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 419         * configure.in: sinclude ../common/aclocal.m4.
 420         * configure: Regenerated.
 421
 422 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 423
 424         * configure configure.in Makefile.in:  Update to new configure
 425         scheme which is more compatible with WinGDB builds.
 426         * configure.in:  Improve comment on how to run autoconf.
 427         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 428         * Makefile.in:  Use autoconf substitution to install common
 429         makefile fragment.
 430
 431 Fri Dec 27 22:54:05 1996  Angela Marie Thomas (angela@cygnus.com)
 432
 433         * gencode.c: patch to not #include "d10v_sim.h" which
 434         unecessarily includes bfd.h and causes wingdb configure
 435         to fail.
 436
 437 Mon Dec 16 13:39:03 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 438
 439         * interp.c (xfer_mem): Change unified memory to 0x0.
 440
 441 Thu Nov 28 20:42:56 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 442
 443         * simops.c (OP_3E01): Fix tracing information.
 444         (OP_300{0,1}): Do not propigate sign.
 445
 446 Mon Nov 25 19:47:40 1996  Doug Evans  <dje@canuck.cygnus.com>
 447
 448         * config.in (WORDS_BIGENDIAN): Add.
 449         * configure: Regenerated.
 450         * d10v_sim.h: #include "config.h"
 451
 452 Sat Nov 23 09:34:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 453
 454         * gencode.c (write_opcodes): Eliminate warnings when generated
 455         table.c is compiled.
 456
 457 Wed Nov 20 19:41:40 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 458
 459         * interp.c (sim_open): Cast result of calloc, and make sure NULL
 460         was not returned.
 461         (dmem_addr): If address is illegal or in I/O space, signal a bus
 462         error.
 463         (pc_addr): Signal bus error, not illegal instruction for bogus
 464         pc.
 465
 466 Wed Nov 20 01:23:03 1996  Doug Evans  <dje@canuck.cygnus.com>
 467
 468         * Makefile.in: Delete all stuff moved to ../common/Make-common.in.
 469         (SIM_OBJS,SIM_EXTRA_CFLAGS,SIM_EXTRA_CLEAN): Define.
 470         * configure.in: Simplify using macros in ../common/aclocal.m4.
 471         Call AC_CHECK_HEADERS(unistd.h).
 472         * configure: Regenerated.
 473         * config.in: New file.
 474         * interp.c: #include "callback.h".
 475         * simops.c: #include "config.h".  #include <unistd.h> if present.
 476
 477 Fri Nov  8 16:19:55 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 478
 479         * d10v-sim.h (simops): Add flag is_long.
 480         (State): Add pc_changed.  Instructions which update the PC should
 481         use the JMP macro which sets this.
 482         (JMP): New macro.  Sets the PC and the pc_changed flag.
 483
 484         * gencode.c (write_opcodes): Add is_long field.
 485
 486         * interp.c (lookup_hash): If we blindly apply a short opcode's mask
 487         to a long opcode we could get a false match.  Check the opcode size.
 488         (hash): Add a size field to the hash table.
 489         (sim_open): Initialize size field in hash table.
 490         (sim_resume): Change to logic for setting the PC.  Used to increment the
 491         PC if it had not been changed.  This didn't allow single-instruction loops.
 492         Now checks the flag State.pc_changed.  Also now stops when ^C is received.
 493         (dmem_addr): Fix translation of data segments to unified memory.
 494         (sim_ctrl_c): New function.  When ^C is received, set stop_simulator flag.
 495
 496         * simops.c: Changed all branch and jump instructions to use new JMP macro.
 497         (OP_20000000): Corrected trace information to show this is a ldi.l, not
 498         a ldi.s instruction.
 499
 500 Thu Oct 31 19:13:55 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 501
 502         * interp.c (sim_fetch_register, sim_store_register): Fix bug where
 503         updating the accumulators was overwriting other parts of the global
 504         State variable.
 505
 506 Wed Oct 30 17:35:14 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 507
 508         * interp.c (bfd.h) Don't include it here any more.
 509         (text{,_start,_end}): Move here from simops.c and make extern.
 510         (decode_pc): New function to return the PC as an address that the
 511         debugger can use.
 512         (dmem_addr): Print decoded PC in error message.
 513         (pc_addr): Ditto.
 514
 515         * simops.c (bfd.h) Don't include it here any more.
 516         (text{,_start,_end}): Move to simops.c.
 517         (trace_input_func): Move decoding of PC, and looking up .text
 518         start to decode_pc.
 519
 520         * d10v_sim.h (bfd.h): Include it here.
 521         (text{,_start,_end}): Add external declarations.
 522         (exec_bfd): Ditto.
 523         (decode_pc): Ditto.
 524
 525 Tue Oct 29 12:13:52 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 526
 527         * interp.c (sim_size): Now allocates unified memory for imap segments
 528         0,1,2, and 127. Initializes imap0 and imap1 to 0x1000.  Initializes dmap to 0.
 529         (sim_write): Just call xfer_mem().
 530         (sim_read): Just call xfer_mem().
 531         (xfer_mem): New function. Does appropriate memory mapping and copies bytes.
 532         (dmem_addr): New function. Reads dmap register and translates data
 533         addresses to local addresses.
 534         (pc_addr): New function. Reads imap register and computes local address
 535         corresponding to contents of the PC.
 536         (sim_resume): Change to use pc_addr().
 537         (sim_create_inferior): Change reinitialization code. Also reinitializes
 538         imap[01] and dmap.
 539         (sim_fetch_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
 540         (sim_store_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
 541
 542         * simops.c (MEMPTR): Redefine to use dmem_addr().
 543         (OP_5F00): Replace references to STate.imem with dmem_addr().
 544
 545         * d10v-sim.h (State): Remove mem_min and mem_max. Add umem[128].
 546         (RB,SW,RW,SLW,RLW): Redefine to use dmem_addr().
 547         (IMAP0,IMAP1,DMAP,SET_IMAP,SET_IMAP1,SET_DMAP): Define.
 548
 549 Tue Oct 22 15:22:33 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 550
 551         * d10v_sim.h (_ins_type): Reorganize, so that we can provide
 552         better statistics, like not counting NOPS as parallel
 553         instructions, and printing total cycles.
 554         (ins_type_counters): Make unsigned long.
 555         (left_nops,right_nops): Fold into ins_type_counters.
 556
 557         * simops.c (trace_input_func): Print new instruction types.
 558         Handle OP_R2R3 as input types.
 559         (OP_{38000000,7000}): Correctly sign extend bytes.
 560         (OP_5E00): Don't count NOPs as parallel instructions.
 561         (OP_460B): Remove unused variable.
 562         (OP_5F00): Ditto.
 563
 564         * interp.c (ins_type_counters): Make unsigned long.
 565         (left_nops,right_nops): Delete.
 566         (most functions): Add prototypes.
 567         (INLINE): If GCC and optimize define as __inline__.
 568         ({,lookup_}hash,get_operands): Declare as INLINE.
 569         (do_parallel): Count conditional operations.
 570         (add_commas): New function, to add commas every 3 digits.
 571         (sim_size): Call add_commas to print numbers.
 572         (sim_{open,resume}): Delete unused variables.
 573         (sim_info): Provide better statistics.
 574         (sim_read): Add int return type.
 575
 576 Mon Oct 21 16:16:26 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 577
 578         * interp.c (sim_resume): Change the way single-stepping and exceptions
 579         are handled so single-stepping works again.
 580
 581 Thu Oct 17 12:24:16 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 582
 583         * endian.c: Optimize simulated loads/stores on x86, AIX, and big
 584         endian hosts.
 585
 586         * configure.in (--enable-sim-bswap): New switch to enable using
 587         the BSWAP instruction on x86's.
 588         * configure: Regenerate.
 589
 590         * Makefile.in ({SWAP,CONFIG}_CFLAGS): Add --enable-sim-bswap
 591         support.
 592
 593 Wed Oct 16 13:50:06 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 594
 595         * endian.c: New file.  Move endian functions here from interp.c.
 596         Optimize code, and make it work as either inline functions or as a
 597         separate file.
 598
 599         * interp.c: Move endian functions from here to endian.c.
 600
 601         * Makefile.in (INCLUDE): Add endian.c.
 602         (run,libsim.a): Add dependency on endian.o.
 603         (endian.o): Add dependency.
 604
 605         * d10v_sim.h (read/write support): Always go through the machine
 606         independent endian functions.  If compiling with GCC and
 607         optimizing, include endian.c so the endian functions are inlined.
 608
 609         * simops.c (OP_5F00): Correct tracing of accumulators.
 610
 611 Tue Oct 15 10:57:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 612
 613         * simops.c (OP_5F00): Add support for getpid, kill system calls.
 614
 615         * interp.c (do_{2_short,parallel}): If an exception is raised,
 616         don't execute the second instruction.
 617
 618 Sat Oct 12 22:17:43 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 619
 620         * simops.c (OP_{31000000,6601,6201,6200}): Store address in a
 621         temporary in case the register is overriden when loading.
 622         (OP_6200): Output type is OP_DREG for tracing.
 623
 624 Fri Oct  4 23:46:18 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 625
 626         * d10v_sim.h (struct _state): Add mem_{min,max} fields.
 627
 628         * interp.c (sim_size): Initialize mem_{min,max} fields.
 629         (sim_write): Update mem_{min,max} fields.
 630         (sim_resume): If PC is not in the minimum/maximum memory range,
 631         abort.
 632         (sim_create_inferior): Preserve mem_{min,max} fields.
 633
 634 Fri Sep 27 13:11:58 1996  Mark Alexander  <marka@cygnus.com>
 635
 636         * simops.c (OP_5F00): Add support for time() system call.
 637
 638 Wed Sep 25 16:31:41 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 639
 640         * simops.c (OP_{6E01,6A01,6E1F,6A00}): Print both words being
 641         stored if tracing.
 642         (OP_5F00,trace_{in,out}put_func): Add finer grain tracing for
 643         system calls.
 644
 645 Mon Sep 23 17:55:30 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 646
 647         * simops.c (op_types): Add OP_{CONSTANT8,R2,R3}.
 648         (trace_input_func): Add support for  OP_{CONSTANT8,R2,R3}.
 649         (OP_{4900,24800000,4800,4A00,4B00,4D00,4C00}): Add OP_R2 and OP_R3
 650         to call/subroutine returns to trace the first two arguments and
 651         the return value.  For small jumps, use CONSTANT8, not CONSTANT16.
 652
 653 Fri Sep 20 15:36:45 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 654
 655         * interp.c (sim_create_inferior): Reinitialize State every time
 656         sim_create_inferior() is called.
 657
 658 Thu Sep 19 21:38:20 1996  Michael Meissner  <meissner@wogglebug.ziplink.net>
 659
 660         * simops.c (OP_{401,2000000,601,3000000,23000000}): Get sign right
 661         on comparisons.
 662         (OP_401): Fix tracing information.
 663
 664 Thu Sep 19 10:30:22 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 665
 666         * simops.c (SIZE_{PC,LINE_NUMBER}): New default sizes for output.
 667         (trace_input_func): Use them.
 668         (trace_input_func): Make sure there is a trailing space after the
 669         instruction.
 670         (OP_6200): Fix tracing info.
 671
 672         * Makefile.in (run): Add dependencies on libbfd.a and
 673         libiberity.a.
 674
 675 Wed Sep 18 09:13:25 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 676
 677         * d10v_sim.h (DEBUG_INSTRUCTION): New debug value to include line
 678         numbers and function names in debug trace.
 679         (DEBUG): If not defined, set to DEBUG_TRACE, DEBUG_VALUES, and
 680         DEBUG_LINE_NUMBER.
 681         (SIG_D10V_{STOP,EXIT}): Values to represent the stop instruction
 682         and exit system call trap being executed.
 683
 684         * interp.c (sim_stop_reason): Set exit code correctly for stop
 685         instruction and exit system call trap.
 686
 687         * configure.in (--enable-sim-cflags): Remove trace case.
 688         (--enable-sim-debug): New switch to set the debug values.
 689         * configure: Regenerate.
 690
 691         * simops.c (trace_{input,output}_func): Rename from
 692         trace_{input,output}.
 693         (trace_{input,output}): Call trace_{input,output}_func if
 694         d10v_debug is non-zero.
 695         (SIZE_INSTRUCTION): Cut down to 8.
 696         (SIZE_OPERANDS): Cut down to 18.
 697         (SIZE_LOCATION): New value for size of line number, function name
 698         field.
 699         (init_text_p,text{,_start,_end}): New static variables for
 700         printing line number and function name.
 701         (exec_bfd): New external that run.c sets.
 702         (trace_input_func): Print line number and function name if
 703         available and if desired.
 704         (OP_4E09): Don't print out DBT message.
 705         (OP_5FE0): Set exception field to SIG_D10V_STOP.
 706         (OP_5F00): Set exception field to SIG_D10V_EXIT.
 707
 708 Sat Sep 14 22:18:43 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 709
 710         * interp.c (do_2_short): If the instruction encodes jump->ins,
 711         don't do the second instruction if the jump succeeds.
 712
 713 Fri Sep 13 22:35:19 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 714
 715         * simops.c (OP_5F00): Use unknown traps to print all GPRs,
 716         accumulators, PC, and F0/F1/C flags.
 717
 718 Thu Sep 12 12:50:11 1996  Mark Alexander  <marka@cygnus.com>
 719
 720         * simops.c (OP_5F00): Fix problems with system calls.
 721
 722 Thu Sep 12 12:19:28 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 723
 724         * simops.c (OP_5F00): Correct tracing information for trap.
 725
 726 Wed Sep 11 18:55:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 727
 728         * Makefile.in (CSEARCH): Correctly find opcodes directory.
 729
 730 Mon Sep  9 13:27:26 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 731
 732         * simops.c (trace_output): Properly align accumulator output.
 733         (OP_3{0,2,4}00): Properly parenthesize test expression.  Add error
 734         if shift count is too high.
 735         (OP_4E{00,02,04,20,22,40,42}): Make tests agree with book.
 736         (OP_4E09): Make cpfg properly trace the input flags.
 737         (op_types): Add OP_FLAG_OUTPUT.
 738         (trace_{input,output}): Support OP_FLAG_OUTPUT.
 739         (OP_31000000): This ld2w varient is a 16-bit memory reference, not
 740         an 8-bit memory reference instruction for tracing purposes.
 741         (OP_201): Addi needs to set the carry.
 742
 743 Fri Sep  6 17:56:17 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 744
 745         * simops.c (OP_2600, OP_2601): Changed min and max comparisons
 746         to use signed register values.
 747
 748 Wed Sep  4 11:35:17 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 749
 750         * d10v_sim.h (DEBUG_*): Add bit flags for controlling debug
 751         output.
 752         (_ins_type): New enumeration to specify which container an
 753         instruction is in, and whether it is part of a parallel operation.
 754         (_state): Add ins_type field.
 755         ({,u}int{8,16,32,64}): Use limits.h to size the appropriate types.
 756         (ins_type_counters): Counters for the various instruction types.
 757         ({left,right}_nops): Counters for the number of nops in each
 758         container.
 759         (d10v_debug): New variable to indicate whether debugging is turned
 760         on.
 761
 762         * simops.c: (all functions): Change all #ifdef DEBUG code so that
 763         the input and output values can be traced, along with the
 764         instruction type.  Make the -t option enable tracing.
 765         (all functions): Change printf calls to use the printf_filtered
 766         function in the callback table.
 767
 768         * interp.c (_leftright): New enumeration to say whether 2 short
 769         instructions are done left first or right first.
 770         (do_{long,2_short,parallel}): Indicate in the machine state which
 771         type of instruction this is.  Count each of the types of
 772         instructions executed.
 773         (sim_size): Only print the memory sizes if DEBUG_MEMSIZE debug
 774         flag is set.
 775         (sim_resume): Pass left/right indication to do_2_short.
 776         (all functions): Change printf calls to use the printf_filtered
 777         function in the callback table.
 778         (sim_trace): Turn on debug flag if DEBUG was defined, and call
 779         sim_resume.
 780         (sim_info): Print out statistics on instructions.
 781         (sim_{trace,create_inferior}): Eliminate extraneous output unless
 782         debugging.
 783         (sim_open): If args == -t and DEBUG was defined, set d10v_debug.
 784         Only initialize the hash table the first time sim_open is called.
 785
 786         * Makefile.in: Make objects depend on d10v_sim.h.
 787         ({,SIM_}CFLAGS): Include configure dependent switches.  Setting
 788         CFLAGS does not override host/target defines or SIM_CFLAGS.
 789         (CC_FOR_BUILD,gencode): Use CC_FOR_BUILD to compile gencode.
 790         (run): By default, the math library is not needed to be linked
 791         in.
 792         ({BFD,LIBIBERTY}_LIB): Define as variables so they can be
 793         overridden.
 794         (VPATH): Don't set to anything but @srcdir@ to work with non-GNU
 795         makes.
 796         ({run,callback}.o): Provide explicit paths to their appropriate
 797         source directories.
 798         (gencode{,.o},d10v-opc.o): Split compilation into creating object
 799         and linking.  Instead of linking in libopcodes.a, just compile
 800         d10v-opc.o directly to handle canadian cross.
 801         (CSEARCH): Add opcodes directory.
 802
 803         * configure.in (--enable-sim-cflags): New switch to allow user to
 804         set the defaults.
 805         (CC_FOR_BUILD): Deal with canadian crosses.
 806         * configure: Regenerate.
 807
 808 Wed Sep 04 04:45:34 1996  Mark Alexander  <marka@cygnus.com>
 809
 810         * simops.c: Include correct syscall.h for d10v, not host's.
 811         Fix #ifdef SYS_stat.
 812
 813 Tue Sep  3 14:00:04 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 814
 815         * simops.c (OP_5F00): Wrap all SYS_xxx traps with #ifdef.
 816         Add trap 2 to be printf and trap 3 to be putchar.
 817
 818 Wed Aug 28 21:42:34 1996  Mark Alexander  <marka@cygnus.com>
 819
 820         * Makefile.in, d10v_sim.h, interp.c, simops.c: Add support
 821         for low-level system calls.
 822
 823 Wed Aug 28 17:33:19 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 824
 825         * Makefile.in, d10v_sim.h, interp.c: Fix byte-order problems.
 826
 827 Mon Aug 26 18:30:28 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 828
 829         * d10v_sim.h (SEXT32): Added.
 830         * interp.c: Commented out printfs.
 831         * simops.c:  Fixed error in sb and st2w.
 832
 833 Thu Aug 15 13:30:03 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 834
 835         * Makefile.in, d10v_sim.h, interp.c, simops.c: Added remaining
 836         DSP instructions.  Added modulo addressing.
 837
 838 Sun Aug 11 12:57:15 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 839
 840         * Makefile.in, d10v_sim.h, interp.c, simops.c: Snapshot.
 841
 842 Fri Aug  2 17:44:24 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 843
 844         * d10v_sim.h, simops.c: Snapshot.
 845
 846 Thu Aug  1 17:05:24 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 847
 848         * ChangeLog, Makefile.in, configure, configure.in, d10v_sim.h,
 849         gencode.c, interp.c, simops.c: Created.
 850