sim/d10v/ChangeLog

   1 2005-01-07  Andrew Cagney  <cagney@gnu.org>
   2
   3         * configure.ac: Rename configure.in, require autoconf 2.59.
   4         * configure: Re-generate.
   5
   6 2004-12-08  Hans-Peter Nilsson  <hp@axis.com>
   7
   8         * configure: Regenerate for ../common/aclocal.m4 update.
   9
  10 2004-06-28  Andrew Cagney  <cagney@gnu.org>
  11
  12         * interp.c (sim_resume): Rename ui_loop_hook to
  13         deprecated_ui_loop_hook.
  14
  15 2003-10-30  Andrew Cagney  <cagney@redhat.com>
  16
  17         * simops.c: Replace "struct symbol_cache_entry" with "struct
  18         bfd_symbol".
  19
  20 2003-06-22  Andrew Cagney  <cagney@redhat.com>
  21
  22         * interp.c (xfer_mem): Simplify.  Only do a single partial
  23         transfer.  Problem reported by Tom Rix.
  24
  25 2003-05-07  Andrew Cagney  <cagney@redhat.com>
  26
  27         * interp.c (sim_d10v_translate_addr): Add "regcache" parameter.
  28         (sim_d10v_translate_imap_addr): Ditto.
  29         (sim_d10v_translate_dmap_addr): Ditto.
  30         (xfer_mem): Pass NULL regcache to sim_d10v_translate_addr.
  31         (dmem_addr): Pass NULL regcache to sim_d10v_translate_dmap_addr.
  32         (dmap_register, imap_register): Add "regcache" parameter.
  33         (imem_addr): Pass NULL regcache to sim_d10v_translate_imap_addr.
  34         (sim_fetch_register): Pass NULL regcache to imap_register and
  35         dmap_register.
  36
  37 2003-02-27  Andrew Cagney  <cagney@redhat.com>
  38
  39         * interp.c (sim_open, sim_create_inferior): Rename _bfd to bfd.
  40
  41 2002-11-13  Andrew Cagney  <cagney@redhat.com>
  42
  43         * simops.c: Include <string.h>.
  44
  45 2002-06-17  Andrew Cagney  <cagney@redhat.com>
  46
  47         * d10v_sim.h (SET_PSW_BIT): Add cast to avoid inverting an enum.
  48
  49 2002-06-16  Andrew Cagney  <ac131313@redhat.com>
  50
  51         * configure: Regenerated to track ../common/aclocal.m4 changes.
  52
  53 2002-06-13  Tom Rix  <trix@redhat.com>
  54
  55         * interp.c (xfer_mem): Fix transfers across multiple segments.
  56
  57 2002-06-09  Andrew Cagney  <cagney@redhat.com>
  58
  59         * Makefile.in (INCLUDE): Update path to callback.h.
  60         * gencode.c: Do not include "callback.h".
  61         * d10v_sim.h: Include "gdb/callback.h" and "gdb/remote-sim.h".
  62         * interp.c: Ditto.
  63
  64 2002-06-08  Andrew Cagney  <cagney@redhat.com>
  65
  66         * interp.c (sim_fetch_register): Fix name of enum used in cast.
  67         (sim_store_register): Ditto.
  68
  69 2002-06-02  Elena Zannoni  <ezannoni@redhat.com>
  70
  71         From Jason Eckhardt <jle@redhat.com>
  72         * d10v_sim.h (INC_ADDR): Correctly handle the case where MOD_E is
  73         less than MOD_S (post-decrement).
  74
  75 2002-06-01  Andrew Cagney  <ac131313@redhat.com>
  76
  77         * interp.c (sim_fetch_register, sim_store_register): Use a switch
  78         statement and enums from "sim-d10v.h".
  79
  80 2002-05-28  Elena Zannoni  <ezannoni@redhat.com>
  81
  82         * interp.c (sim_create_inferior): Add comment.
  83
  84         From Alan Matsuoka <alanm@redhat.com>:
  85         From 2001-04-27 Jason Eckhardt <jle@cygnus.com>:
  86         * simops.c (OP_4400): Output "mvf0f" instead of "mf0f".
  87         (OP_4401): Output "mvf0t" instead of "mf0t".
  88         (OP_460B): Do not output a flag register.
  89         (OP_4609): Do not output a flag register.
  90
  91 2002-05-23  Andrew Cagney  <ac131313@redhat.com>
  92
  93         * Makefile.in (INCLUDE): Add "gdb/sim-d10v.h".
  94         * interp.c: Include "gdb/sim-d10v.h" instead of "sim-d10v.h".
  95
  96 2001-08-01  John R. Moore  <jmoore@redhat.com>
  97
  98         * interp.c (sim_create_inferior): Removed a hack that stated
  99         it was setting r0/r1 with argc/argv.
 100
 101 2001-04-15  J.T. Conklin  <jtc@redback.com>
 102
 103         * Makefile.in (simops.o): Add simops.h to dependency list.
 104
 105 Tue May 23 21:39:23 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 106
 107         * configure: Regenerated to track ../common/aclocal.m4 changes.
 108
 109 Tue Apr 18 16:26:41 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 110
 111         * interp.c (sim_resume): Deliver SIGILL.
 112         (lookup_hash): Do not print SIGILL message.
 113
 114 Tue Feb 22 18:24:56 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 115
 116         * Makefile.in (SIM_EXTRA_CFLAGS): Define SIM_HAVE_ENVIRONMENT.
 117         * interp.c (sim_set_trace): Replace sim_trace.  Enable tracing.
 118
 119 Tue Feb  8 17:41:12 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 120
 121         * d10v_sim.h (SIG_D10V_BUS): Define.
 122
 123         * simops.c (address_exception): Delete function.
 124         (OP_30000000, OP_6401, OP_6001, OP_6000, OP_32010000, OP_31000000,
 125         OP_6601, OP_6201, OP_6200, OP_33010000, OP_34000000, OP_6800,
 126         OP_6C1F, OP_6801, OP_6C01, OP_36010000, OP_35000000, OP_6A00,
 127         OP_6E1F, OP_6A01, OP_6E01, OP_37010000): Replace call to
 128         address_exception with code that sets SIG_D10V_BUS.
 129
 130         * interp.c (sim_resume): When SIGBUS or SIGSEGV, deliver a bus
 131         error to the simulator before resuming execution.
 132         (sim_trace): Check stop reason and use that to determine sim_trace
 133         return value.
 134         (sim_stop_reason): For SIG_D10V_BUS return a SIGBUS / SIGSEGV
 135         sigrc.
 136
 137 Tue Jan 18 16:07:42 MST 2000    Diego Novillo <dnovillo@cygnus.com>
 138
 139         * interp.c (sim_create_inferior): Change internal initial value for
 140         DMAP2 to 0x2000.
 141
 142 Mon Jan  3 02:06:07 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 143
 144         * interp.c (lookup_hash): Stop the update of the PC when there was
 145         an illegal instruction exception.
 146
 147 Mon Jan  3 00:14:33 2000  Andrew Cagney  <cagney@b1.cygnus.com>
 148
 149         * simops.c (address_exception): New function.
 150         (OP_30000000, OP_6401, OP_6001, OP_6000, OP_32010000, OP_31000000,
 151         OP_6601, OP_6201, OP_6200, OP_33010000, OP_34000000, OP_6800,
 152         OP_6C1F, OP_6801, OP_6C01, OP_36010000, OP_35000000, OP_6A00,
 153         OP_6E1F, OP_6A01, OP_6E01, OP_37010000): For "ld", "ld2w", "st"
 154         and "st2w" check that the address is aligned.
 155
 156 1999-12-30  Chandra Chavva   <cchavva@cygnus.com>
 157
 158         * d10v_sim.h (INC_ADDR): Added code to assign
 159         proper address for loads with predec operations.
 160
 161 1999-11-25  Nick Clifton  <nickc@cygnus.com>
 162
 163         * simops.c (OP_4E0F): New function: Simulate new bit pattern for
 164         cpfg instruction.
 165
 166 Fri Oct 29 18:34:28 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 167
 168         * simops.c (move_to_cr): Don't allow user to set PSW.DM in either
 169         DPSW and BPSW.
 170
 171 Thu Oct 28 01:26:18 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 172
 173         * simops.c (OP_5F20): Use SET_HW_PSW when updating PSW.
 174         (PSW_HW_MASK): Declare.
 175
 176         * d10v_sim.h (move_to_cr): Add ``psw_hw_p'' parameter.
 177         (SET_CREG, SET_PSW_BIT): Update.
 178         (SET_HW_CREG, SET_HW_PSW): Define.
 179
 180 Sun Oct 24 21:38:04 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 181
 182         * interp.c (sim_d10v_translate_dmap_addr): Fix extraction of IOSP
 183         for DMAP3.
 184
 185 Sun Oct 24 16:04:16 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 186
 187         * interp.c (sim_d10v_translate_addr): New function.
 188         (xfer_mem): Rewrite.  Use sim_d10v_translate_addr.
 189         (map_memory): Make INLINE.
 190
 191 Sun Oct 24 13:45:19 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 192
 193         * interp.c (sim_d10v_translate_dmap_addr): New function.
 194         (dmem_addr): Rewrite. Use sim_d10v_translate_dmap_addr.  Change
 195         offset parameter to type uint16.
 196         * d10v_sim.h (dmem_addr): Update declaration.
 197
 198 Sun Oct 24 13:07:31 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 199
 200         * interp.c (imap_register, set_imap_register, dmap_register,
 201         set_imap_register): Use map_memory.
 202         (DMAP): Update.
 203         (sim_create_inferior): Initialize all DMAP registers.  NOTE that
 204         DMAP2, in internal memory mode, is set to 0x0000 and NOT
 205         0x2000. This is consistent with the older d10v boards.
 206
 207 Sun Oct 24 11:22:12 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 208
 209         * interp.c (sim_d10v_translate_imap_addr): New function.
 210         (imem_addr): Rewrite.  Use sim_d10v_translate_imap_addr.
 211         (last_from, last_to): Declare.
 212
 213 Sun Oct 24 01:21:56 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 214
 215         * d10v_sim.h (struct d10v_memory): Define.  Support very long
 216         memories.
 217         (struct _state): Replace imem, dmem and umem by mem.
 218         (IMAP_BLOCK_SIZE, DMAP_BLOCK_SIZE, SEGMENT_SIZE, IMEM_SEGMENTS,
 219         DMEM_SEGMENTS, UMEM_SEGMENTS): Define.
 220
 221         * interp.c (map_memory): New function.
 222         (sim_size, xfer_memory, imem_addr, dmem_addr): Update.
 223         (UMEM_SEGMENTS): Moveed to "d10v_sim.h".
 224         (IMEM_SIZEDMEM_SIZE): Delete.
 225
 226 Sat Oct 23 20:06:58 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 227
 228         * interp.c: Include "sim-d10v.h".
 229         (imap_register, set_imap_register, dmap_register,
 230         set_dmap_register, spi_register, spu_register, set_spi_register,
 231         set_spu_register): New functions.
 232         (sim_create_inferior): Update.
 233         (sim_fetch_register, sim_store_register): Rewrite.  Use enums
 234         defined in sim-d10v.h.
 235
 236         * d10v_sim.h (DEBUG_MEMORY): Define.
 237         (IMAP0, IMAP1, DMAP, SET_IMAP0, SET_IMAP1, SET_DMAP): Delete.
 238
 239 Sat Oct 23 18:41:18 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 240
 241         * interp.c (sim_open): Allow a debug value to be passed to the -t
 242         option.
 243         (lookup_hash): Don't exit on an illegal instruction.
 244         (do_long, do_2_short, do_parallel): Check for failed instruction
 245         lookup.
 246
 247 Mon Oct 18 18:03:24 MDT 1999    Diego Novillo <dnovillo@cygnus.com>
 248
 249         * simops.c (OP_3220): Fix trace output for illegal accumulator
 250         message.
 251
 252 1999-09-14  Nick Clifton  <nickc@cygnus.com>
 253
 254         * simops.c: Disable setting of DM bit in PSW.
 255
 256 Wed Sep  8 19:34:55 MDT 1999    Diego Novillo <dnovillo@cygnus.com>
 257
 258         * simops.c (op_types): Added new memory indirect type OP_MEMREF3.
 259         (trace_input_func): Added support for OP_MEMREF3.
 260         (OP_32010000): New instruction ld.
 261         (OP_33010000): New instruction ld2w.
 262         (OP_5209): New instruction sac.
 263         (OP_4209): New instruction sachi.
 264         (OP_3220): New instruction slae.
 265         (OP_36010000): New instruction st.
 266         (OP_37010000): New instruction st2w.
 267
 268 1999-09-09  Stan Shebs  <shebs@andros.cygnus.com>
 269
 270         * interp.c (old_segment_mapping): New global.
 271         (xfer_mem): Change the default segment mapping to be the way
 272         that Mitsubishi prefers, but use the previous mapping if
 273         old_segment_mapping is true.
 274         (sim_open): Add an option -oldseg to get the old mapping.
 275         (sim_create_inferior): Init mapping registers based on the
 276         value of old_segment_mapping.
 277
 278 1999-09-07  Nick Clifton  <nickc@cygnus.com>
 279
 280         * simops.c (OP_6601): Do not write back decremented address if
 281         either of the destination registers was the same as the address
 282         register.
 283         (OP_6201): Do not write back incremented address if either of the
 284         destination registers was the same as the address register.
 285
 286 Thu Sep  2 18:15:53 1999  Andrew Cagney  <cagney@b1.cygnus.com>
 287
 288         * configure: Regenerated to track ../common/aclocal.m4 changes.
 289
 290 1999-05-08  Felix Lee  <flee@cygnus.com>
 291
 292         * configure: Regenerated to track ../common/aclocal.m4 changes.
 293
 294 1999-04-02  Keith Seitz  <keiths@cygnus.com>
 295
 296         * interp.c (ui_loop_hook_counter): New global (when NEED_UI_LOOP_HOOK
 297         defined).
 298         (sim_resume): If the counter has expired, call the ui_loop_hook,
 299         if defined.
 300         (UI_LOOP_POLL_INTERVAL): Define. Used to tweak the frequency of
 301         ui_loop_hook calls.
 302         * Makefile.in (SIM_EXTRA_CFLAGS): Include NEED_UI_LOOP_HOOK.
 303
 304 Wed Mar 10 19:32:13 1999  Nick Clifton  <nickc@cygnus.com>
 305
 306         * simops.c: If load instruction with auto increment/decrement
 307         addressing is used when the destination register is the same as
 308         the address register, then ignore the auto increment/decrement.
 309
 310 Wed Mar 10 19:32:13 1999  Martin M. Hunt  <hunt@cygnus.com>
 311
 312         * simops.c (OP_5F00): Ifdef SYS_stat case because
 313         not all systems have it defined.
 314
 315 1999-01-26  Jason Molenda  (jsm@bugshack.cygnus.com)
 316
 317         * simops.c (OP_5607): Correct saturation comparison/assignment.
 318         (OP_1201, OP_1203, OP_17001200, OP_17001202,
 319          OP_2A00, OP_2800, OP_2C00, OP_3200, OP_3201,
 320          OP_1001, OP_1003, OP_17001000, OP_17001002): Ditto.
 321
 322 1999-01-26  Jason Molenda  (jsm@bugshack.cygnus.com)
 323
 324         * simops.c (OP_5605): Sign extend MIN32 and MAX32 before saturation
 325         comparison.
 326         (OP_5607): Ditto.
 327         (OP_2A00): Ditto.
 328         (OP_2800): Ditto.
 329
 330 1999-01-13  Jason Molenda  (jsm@bugshack.cygnus.com)
 331
 332         * simops.c (OP_1223): Sign extend MIN32 and MAX32 before saturation
 333         comparison.
 334
 335 Tue Nov 24 17:04:43 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 336
 337         * simops.c (sys/syscall.h): Include targ-vals.h instead.
 338         (SYS_*): Replace with TARGET_SYS_*.
 339
 340         * Makefile.in: Add dependency on targ-vals.h.
 341         (NL_TARGET): Define as NL_TARGET_d10v.
 342
 343 Wed Sep 30 00:06:32 1998  Andrew Cagney  <cagney@amy.cygnus.com>
 344
 345         * interp.c (xfer_mem): Missing break, instruction memory case
 346         flowed into unified memory case.
 347
 348 Wed Sep 30 10:14:18 1998  Nick Clifton  <nickc@cygnus.com>
 349
 350         * simops.c: If load instruction with auto increment/decrement
 351         addressing is used when the destination register is the same as
 352         the address register, then ignore the auto increment/decrement.
 353
 354 Tue Apr 28 18:33:31 1998  Geoffrey Noer  <noer@cygnus.com>
 355
 356         * configure: Regenerated to track ../common/aclocal.m4 changes.
 357
 358 Sun Apr 26 15:31:55 1998  Tom Tromey  <tromey@creche>
 359
 360         * configure: Regenerated to track ../common/aclocal.m4 changes.
 361         * config.in: Ditto.
 362
 363 Sun Apr 26 15:20:23 1998  Tom Tromey  <tromey@cygnus.com>
 364
 365         * acconfig.h: New file.
 366         * configure.in: Reverted change of Apr 24; use sinclude again.
 367
 368 Fri Apr 24 14:16:40 1998  Tom Tromey  <tromey@creche>
 369
 370         * configure: Regenerated to track ../common/aclocal.m4 changes.
 371         * config.in: Ditto.
 372
 373 Fri Apr 24 11:20:06 1998  Tom Tromey  <tromey@cygnus.com>
 374
 375         * configure.in: Don't call sinclude.
 376
 377 Fri Apr 24 11:04:46 1998  Andrew Cagney  <cagney@chook.cygnus.com>
 378
 379         * interp.c (struct hash_entry): OPCODE and MASK are unsigned.
 380
 381         * d10v_sim.h (remote-sim.h, sim-config.h): Include.
 382
 383 Sat Apr  4 20:36:25 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 384
 385         * configure: Regenerated to track ../common/aclocal.m4 changes.
 386
 387 Wed Apr  1 12:59:17 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 388
 389         * simops.c (trace_input_func): Use move_from_cr / CREGS to obtain
 390         up-to-date CR value.
 391         (OP_OP_1000000, add3): Trace inputs before performing add.
 392         (OP_5F00, <*>): Trace input registers before making system call.
 393         (OP_5F00, <kill>): Trace R0, R1 not REGn.
 394         (OP_5F00, <getpid>): Always return 47.
 395
 396         * d10v_sim.h (SLOT, SLOT_NR, SLOT_PEND_MASK, SLOT_PEND,
 397         SLOT_DISCARD, SLOT_FLUSH): Define.  An implementation of write
 398         back slots.
 399         (struct _state): Add struct slot slot to global state variable.
 400         (struct _state): Delete fields SM, EA, DB, DM, IE, RP, MD, FX, ST,
 401         F0, F1, C from global State variable.
 402         (struct _state): Add struct trace to global State variable.
 403         (GPR, SET_GPR): Define.  SET_GPR uses SLOT_PEND.
 404         (PSW*, SET_PSW*): Define. SET_PSW* uses SET_CREG.
 405         (CREG, SET_CREG, SET_*): Define. SET_CREG uses func move_to_cr.
 406         (INC_ADDR): Re-implement.  Use SET_GPR to update registers.
 407         (JMP): Re-implement. Use SET_* to update registers.
 408
 409         * interp.c: Use new SET_* et.al. macros to fetch / store
 410         registers.
 411         (get_operands): Squirrel away trace values at start of each
 412         operand decode.
 413         (do_2_short): Flush pending writes before issuing second
 414         instruction.
 415         (sim_resume): Flush pending writes at end of instruction cycle.
 416         (sim_fetch_register, sim_store_register, sim_create_inferior):
 417         After scheduling updates to registers using SET_*, flush updates.
 418         (sim_resume): Re-order handling of RPT/repeat and IBA/hbreak so
 419         that each sets pc using SET_* and last SET_* eventually winds out.
 420
 421         * simops.c: Use new SET_* et.al. macros to fetch / store
 422         registers.
 423         (move_to_cr): Add MASK argument for selective update of CREG bits.
 424         Re-implement using new SET_* macros.
 425         (trace_output_func, trace_output): Delete. Replace with.
 426         (do_trace_output_flush, trace_output_finish, trace_output_40,
 427         trace_output_32, trace_output_16, trace_output_void,
 428         trace_output_flag): New functions.  Handle specific trace cases.
 429         (OP_*): Re-write tracing to use new trace_output_* functions.
 430         (OP_*): Re-write to use new SET_* et.al. macros.
 431         (FUNC, PARM[1-4], RETVAL, RETVAL32): Redo definition.
 432         (RETVAL_HIGH, RETVAL_LOW): Delete, use RETVAL32.
 433
 434 Wed Apr  1 12:55:18 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 435
 436         * configure.in (SIM_AC_OPTION_WARNINGS): Add.
 437         configure: Re-generate.
 438
 439 Fri Mar 27 16:15:52 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 440
 441         * configure: Regenerated to track ../common/aclocal.m4 changes.
 442
 443 Wed Mar 25 12:35:29 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 444
 445         * configure: Regenerated to track ../common/aclocal.m4 changes.
 446
 447 Wed Mar 18 12:38:12 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 448
 449         * configure: Regenerated to track ../common/aclocal.m4 changes.
 450
 451 Tue Feb 17 12:38:42 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 452
 453         * interp.c (sim_store_register, sim_fetch_register): Pass in
 454         length parameter.  Return -1.
 455
 456 Mon Oct 27 14:43:33 1997  Fred Fish  <fnf@cygnus.com>
 457
 458         * (dmem_addr): If address is illegal or in I/O space, signal a bus
 459         error.  Allocate unified memory on demand.  Fix DMEM address
 460         calculations.
 461
 462 Mon Feb 16 10:27:53 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 463
 464         * simops.c (OP_5F20): Implement "dbt".
 465         (OP_5F60): Implement "rtd".
 466
 467         * d10v_sim.h (DPC_CR): Define enum.
 468         (DBT_VECTOR_START): Define
 469         (DPSW, DPC): Define.
 470
 471 Fri Feb 13 15:15:58 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 472
 473         * simops.c (move_to_cr): Sync regs[SP_IDX] with State.sp according
 474         to PSW:SM.
 475
 476         * d10v_sim.h (struct _state): Add sp, as holding area for SPI/SPU.
 477         (SP_IDX): Define.
 478
 479 Wed Feb 11 16:53:49 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 480
 481         * simops.c (OP_5F00): Call error instead of abort for unknown
 482         syscalls.
 483
 484         * d10v_sim.h (enum): Define DPSW_CR.
 485
 486         * simops.c (move_to_cr): Mask out hardwired zero bits in DPSW.
 487
 488 Tue Feb 10 18:28:38 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 489
 490         * interp.c (sim_write_phys): Delete.
 491         (sim_load): Call sim_load_file with sim_write and LMA.
 492
 493 Mon Feb  9 12:05:01 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 494
 495         * interp.c: Rewrite xfer_mem so that it translates addresses as -
 496         0x00... - DMAP translated memory, 0x01... IMAP translated memory,
 497         0x10... - on-chip data, 0x11... - on-chip insn, 0x12... - unified
 498         memory.
 499         (pc_addr): Delete.
 500         (imem_addr): New function - translate IMEM address.
 501         (sim_resume): Use imem_addr to translate insn address, abort if
 502         translation failed.
 503         (sim_create_inferior): Write ARGV to memory using sim_write.  Pass
 504         argc/argv using r0/r1 not r2/r3.
 505         (sim_size): Do not initialize IMAP/DMAP here.
 506         (sim_open): Call sim_create_inferior and sim_size to initialize
 507         the system.
 508         (sim_create_inferior): Initialize IMAP/DMAP to hardware reset
 509         defaults.
 510         (init_system): Delete.
 511         (xfer_mem, sim_fetch_register, sim_store_register): Do not call
 512         init_system.
 513         (decode_pc): Check prog_bfd is defined before looking up .text
 514         section.
 515
 516 Sun Feb  1 16:47:51 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 517
 518         * configure: Regenerated to track ../common/aclocal.m4 changes.
 519
 520 Sat Jan 31 18:15:41 1998  Andrew Cagney  <cagney@b1.cygnus.com>
 521
 522         * configure: Regenerated to track ../common/aclocal.m4 changes.
 523
 524 Sun Jan 25 22:23:01 1998  Michael Meissner  <meissner@cygnus.com>
 525
 526         * interp.c (sim_stop_reason): Exit status is now in r0, not r2.
 527
 528 Sat Jan 24 19:00:30 1998  Michael Meissner  <meissner@cygnus.com>
 529
 530         * d10v_sim.h (DEBUG_TRAP): New debug flag.
 531
 532         * simops.c (OP_5F00): If DEBUG_TRAP is on, turn traps 0-14 into
 533         printing the registers.
 534
 535 Thu Jan 22 17:54:01 1998  Michael Meissner  <meissner@cygnus.com>
 536
 537         * simops.c (op_types): New ABI, args are r0..r3, system call # is
 538         in r4.
 539         (trace_{in,out}put_func): Ditto.
 540         (OP_4900): Ditto.
 541         (OP_24800000): Ditto.
 542         (OP_4D00): Ditto.
 543         (OP_5F00): Ditto.
 544
 545 Thu Jan 22 14:30:36 1998  Fred Fish  <fnf@cygnus.com>
 546
 547         * interp.c (UMEM_SEGMENTS): New define, set to 128.
 548         (sim_size): Use UMEM_SEGMENTS rather than hardwired constant.
 549         (sim_close): Reset prog_bfd to NULL after closing it.  Also
 550         reset prog_bfd_was_opened_p after closing prog_bfd.
 551         (sim_load): Reset prog_bfd_was_opened_p after closing prog_bfd.
 552         (sim_create_inferior): Get start address from abfd not prog_bfd.
 553         (xfer_mem): Do bounds checking on addresses and return zero length
 554         read/write on bad addresses, rather than aborting.  Prepare to
 555         be able to handle xfers that cross segment boundaries, but not
 556         yet implemented.  Only emit debug message when d10v_debug is
 557         set as well as DEBUG being defined.
 558
 559 Mon Jan 19 22:26:29 1998  Doug Evans  <devans@seba>
 560
 561         * configure: Regenerated to track ../common/aclocal.m4 changes.
 562
 563 Mon Dec 15 23:17:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 564
 565         * configure: Regenerated to track ../common/aclocal.m4 changes.
 566         * config.in: Ditto.
 567
 568 Tue Dec  9 10:28:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 569
 570         * d10v_sim.h (RPT_S): Index cregs with RPT_S_CR not RPT_E_CR.
 571         (BPSW): Ditto for BPSW_CR and not PSW_CR.
 572
 573         * simops.c (OP_5F40): JMP to BPC instead of assigning PC directly.
 574
 575 Mon Dec  8 12:58:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 576
 577         * simops.c (OP_5F00): From Martin Hunt <hunt@cygnus.com>. Change
 578         reserved trap from 0 to 15. Add trap emulation code for 0-14.
 579
 580         * interp.c (sim_resume): From Martin Hunt <hunt@cygnus.com>. Check
 581         IBA for SDBT.
 582
 583         * d10v_sim.h (AE_VECTOR_START, RIE_VECTOR_START,
 584         SDBT_VECTOR_START, TRAP_VECTOR_START): Define.
 585
 586         * simops.c (OP_5F00): For "trap", mask out all but SM bit in PSW,
 587         use move_to_cr.
 588         (OP_5F00): For "trap", update BPSW with move_to_cr.
 589
 590 Fri Dec  5 15:31:17 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 591
 592         * d10v_sim.h (enum): Enumerate CR register names.
 593         (enum): Enumerate PSW bit values.
 594         (PSW): Obtain value uing move_from_cr.
 595         (MOD_S, MOD_E, BPSW): Make r-values.
 596         (move_from_cr, move_to_cr): Declare functions.
 597
 598         * interp.c (sim_fetch_register, sim_store_register): Use
 599         move_from_cr and move_to_cr for CR register transfers.
 600
 601         * simops.c (move_from_cr, move_to_cr): New functions.
 602         (OP_5F40): Move BPSW to PSW using move_to_cr and move_from_cr.
 603         (OP_5600): For "mvtc", use function move_to_cr.
 604         (OP_5200): For "mvfc", use function move_from_cr.
 605
 606 Fri Dec  5 13:33:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 607
 608         * simops.c (OP_5600): For "mvtc" MOD_E and MOD_S, ensure that the
 609         LSbit is zero.
 610
 611 Thu Dec  4 09:21:05 1997  Doug Evans  <devans@canuck.cygnus.com>
 612
 613         * configure: Regenerated to track ../common/aclocal.m4 changes.
 614
 615 Thu Dec  4 16:51:02 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 616
 617         * d10v_sim.h (struct _state): Add DM - PSW debug mask.
 618
 619         * simops.c (OP_5600): For "mvtc", save PSW.DM.
 620         (OP_5200): Ditto for "mvfc".
 621
 622 Wed Dec  3 17:27:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 623
 624         * d10v_sim.h (SEXT56): Define.
 625
 626         * simops.c (OP_4201): For "rac", sign extend 56 bit value before
 627         it is shifted.
 628
 629         * d10v_sim.h (MAX32, MIN32, MASK32, MASK40): Re-define using
 630         SIGNED64 macro.
 631
 632 Tue Dec  2 15:38:34 1997  Fred Fish  <fnf@cygnus.com>
 633
 634         * interp.c (sim_resume): Call do_2_short with LEFT_FIRST or
 635         RIGHT_FIRST, as appropriate, instead of hardcoded ints that
 636         don't match enum values.
 637
 638 Tue Dec  2 15:01:08 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 639
 640         * simops.c (OP_3A00): For "macu", perform multiply stage using 32
 641         bit rather than 16 bit precision.
 642         (OP_3C00): For "mulxu", store unsigned product in ACC.
 643         (OP_3800): For "msbu", subtract unsigned product from ACC,
 644         (OP_0): For "sub", compute carry by comparing inputs.
 645
 646 Tue Dec  2 11:04:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 647
 648         * simops.c (OP_1000): For "sub2w", compute carry by comparing
 649         inputs.
 650
 651 Mon Nov 17 20:57:21 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 652
 653         * simops.c (OP_1): Use 32 bit unsigned arithmetic for subtract,
 654         carry indicated by value > 0xffff.
 655
 656 Fri Nov 14 12:51:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 657
 658         * interp.c (sim_resume): Don't set up SIGINT handler using signal,
 659         handled by client.
 660         (sim_resume): Fix race condition of a direct assignment to
 661         stop_simulator, conditionally call sim_stop.
 662         (sim_stop_reason): Check stop_simulator returning SIGINT.  Clear
 663         stop_simulator ready for next sim_resume call.
 664         (sim_ctrl_c): Delete function.
 665
 666 Thu Nov 13 19:29:34 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 667
 668         * interp.c (sim_resume): For "REP", only check/update the PC when
 669         a branch instruction has not been executed.
 670
 671 Mon Nov 10 17:50:18 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 672
 673         * simops.c (OP_4201): "rachi". Sign extend bit 40 of ACC.  Sign
 674         extend bit 44 all constants.
 675         (OP_4201): Replace GCC specific 0x..LL with SIGNED64 macro.
 676
 677 Fri Oct 24 10:26:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 678
 679         * d10v_sim.h: Include sim-types.h.
 680         (uint8, in816, uiny16, int32, uint32, int64, uint64): Typedef
 681         using unsigned8 et.al. from sim-types.h.
 682         (SEXT32, SEXT40, SEXT44, SEXT60): Replace GCC specific 0x..LL with
 683         SIGNED64 macro.
 684
 685 Wed Oct 22 14:43:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 686
 687         * interp.c (sim_write_phys): New function, write to physical
 688         instead of virtual memory.
 689
 690         * interp.c (sim_load): Pass lma_p and sim_write_phys to
 691         sim_load_file.
 692
 693 Mon Oct 13 10:55:07 1997  Fred Fish  <cygnus.com>
 694
 695         * simops.c (OP_6A01): Change OP_POSTDEC to OP_POSTINC and move
 696         exception generation code to OP_6E01.
 697         (OP_6E01): Change OP_POSTINC to OP_POSTDEC and insert exception
 698         generation code.
 699
 700 Sat Oct 11 09:02:08 1997  Fred Fish  <fnf@cygnus.com>
 701
 702         * simops.c (OP_6401): postdecrement on r15 is OK, remove exception.
 703         (OP_6601): Ditto.
 704
 705 Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 706
 707         * configure: Regenerated to track ../common/aclocal.m4 changes.
 708
 709 Sat Sep 27 12:51:34 1997  Fred Fish  <fnf@cygnus.com>
 710
 711         * interp.c (pc_addr): Discard upper bit(s) of PC in case
 712         IMAP1 selects unified memory.
 713         * d10v_sim.h (INC_ADDR): Align MOD_E to increment before testing
 714         for end condition.
 715
 716 Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 717
 718         * configure: Regenerated to track ../common/aclocal.m4 changes.
 719
 720 Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 721
 722         * configure: Regenerated to track ../common/aclocal.m4 changes.
 723
 724 Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 725
 726         * configure: Regenerated to track ../common/aclocal.m4 changes.
 727
 728 Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 729
 730         * configure: Regenerated to track ../common/aclocal.m4 changes.
 731
 732 Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 733
 734         * configure: Regenerated to track ../common/aclocal.m4 changes.
 735
 736 Wed Sep 10 22:30:24 1997  Martin M. Hunt  <hunt@cygnus.com>
 737
 738         * interp.c (sim_resume): Increment PC at end of rep
 739         loop.
 740
 741         * simops.c (OP_4201): Fix rachi instruction.
 742
 743 Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
 744
 745         * configure: Regenerated to track ../common/aclocal.m4 changes.
 746
 747 Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 748
 749         * configure: Regenerated to track ../common/aclocal.m4 changes.
 750         * config.in: Ditto.
 751
 752 Tue Aug 26 10:37:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 753
 754         * interp.c (sim_kill): Delete.
 755         (sim_create_inferior): Add ABFD argument.
 756         (sim_load): Move setting of PC from here.
 757         (sim_create_inferior): To here.
 758         (start_address): Delete variable.
 759
 760 Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 761
 762         * configure: Regenerated to track ../common/aclocal.m4 changes.
 763         * config.in: Ditto.
 764
 765 Mon Aug 25 15:39:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 766
 767         * interp.c (sim_open): Add ABFD argument.
 768
 769 Tue May 20 10:14:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 770
 771         * interp.c (sim_open): Add callback argument.
 772         (sim_set_callbacks): Remove SIM_DESC argument.
 773
 774 Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
 775
 776         * configure: Regenerated to track ../common/aclocal.m4 changes.
 777
 778 Tue Apr 22 10:29:23 1997  Doug Evans  <dje@canuck.cygnus.com>
 779
 780         * interp.c (sim_open): Undo patch to add -E support.
 781
 782 Fri Apr 18 13:39:01 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 783
 784         * interp.c (sim_stop): New function.
 785
 786 Thu Apr 17 02:42:00 1997  Doug Evans  <dje@canuck.cygnus.com>
 787
 788         * Makefile.in (SIM_OBJS): Add sim-load.o.
 789         * d10v_sim.h (exec_bfd): Rename to prog_bfd.
 790         * interp.c: #include bfd.h.
 791         (myname, sim_kind, start_address): New static locals.
 792         (prog_bfd_was_opened_p, prog_bfd): New static locals.
 793         (decode_pc): Update to use prog_bfd.
 794         (sim_open): Set sim_kind, myname.  Ignore -E arg.
 795         (sim_close): Close prog_bfd if simulator opened it.
 796         (sim_create_inferior): Return SIM_RC.  Delete arg start_address.
 797         (sim_load): Return SIM_RC.  New arg abfd.  Set start address from bfd.
 798         Call sim_load_file to load file into simulator.
 799         * simops.c (trace_input_func): exec_bfd renamed to prog_bfd.
 800
 801 Wed Apr 16 16:12:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
 802
 803         * simops.c (OP_5F00): Only provide system calls SYS_execv,
 804         SYS_wait, SYS_wait, SYS_utime, SYS_time if defined by the host.
 805
 806 Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 807
 808         * configure: Regenerated to track ../common/aclocal.m4 changes.
 809         * config.in: Ditto.
 810
 811 Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
 812
 813         * interp.c (sim_open): New arg `kind'.
 814
 815         * configure: Regenerated to track ../common/aclocal.m4 changes.
 816
 817 Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
 818
 819         * configure: Regenerated to track ../common/aclocal.m4 changes.
 820
 821 Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
 822
 823         * configure: Re-generate.
 824
 825 Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
 826
 827         * configure: Regenerate to track ../common/aclocal.m4 changes.
 828
 829         * simops.c (OP_5F00): Remove old traps 1-3.  Make trap 15 the same
 830         as trap 0, which will be deprecated.  Only set errno, if an error
 831         in fact was returned.
 832
 833 Thu Mar 13 12:41:20 1997  Doug Evans  <dje@canuck.cygnus.com>
 834
 835         * interp.c: Delete redundant prototypes of sim_foo fns.
 836         (sim_open): New SIM_DESC result.  Argument is now in argv form.
 837         (other sim_*): New SIM_DESC argument.
 838
 839 Thu Mar 13 10:29:04 1997  Michael Meissner  <meissner@cygnus.com>
 840
 841         * simops.c (trace_{input,output}_func): Call flush_stdout from the
 842         callback functions.
 843         (OP_5F00): Ditto.
 844         (OP_6{4,6,C,A}01): Test for post decrement on the stack pointer.
 845         (OP_{1200,1000000,201,5FE0,1003,17001002}): Fix problems in
 846         setting the carry bit after an add or a subtract.
 847
 848 Wed Feb 12 16:04:15 1997  Michael Meissner  <meissner@cygnus.com>
 849
 850         * simops.c (OP_{1403,15002A02,3{0,4}0{0,1}}): Only use the bottom
 851         40 bits of accumulators.  Sign/zero extend as appropriate.
 852
 853 Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
 854
 855         * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
 856         COMMON_{PRE,POST}_CONFIG_FRAG instead.
 857         * configure.in: sinclude ../common/aclocal.m4.
 858         * configure: Regenerated.
 859
 860 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
 861
 862         * configure configure.in Makefile.in:  Update to new configure
 863         scheme which is more compatible with WinGDB builds.
 864         * configure.in:  Improve comment on how to run autoconf.
 865         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
 866         * Makefile.in:  Use autoconf substitution to install common
 867         makefile fragment.
 868
 869 Fri Dec 27 22:54:05 1996  Angela Marie Thomas (angela@cygnus.com)
 870
 871         * gencode.c: patch to not #include "d10v_sim.h" which
 872         unecessarily includes bfd.h and causes wingdb configure
 873         to fail.
 874
 875 Mon Dec 16 13:39:03 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 876
 877         * interp.c (xfer_mem): Change unified memory to 0x0.
 878
 879 Thu Nov 28 20:42:56 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 880
 881         * simops.c (OP_3E01): Fix tracing information.
 882         (OP_300{0,1}): Do not propigate sign.
 883
 884 Mon Nov 25 19:47:40 1996  Doug Evans  <dje@canuck.cygnus.com>
 885
 886         * config.in (WORDS_BIGENDIAN): Add.
 887         * configure: Regenerated.
 888         * d10v_sim.h: #include "config.h"
 889
 890 Sat Nov 23 09:34:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 891
 892         * gencode.c (write_opcodes): Eliminate warnings when generated
 893         table.c is compiled.
 894
 895 Wed Nov 20 19:41:40 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 896
 897         * interp.c (sim_open): Cast result of calloc, and make sure NULL
 898         was not returned.
 899         (dmem_addr): If address is illegal or in I/O space, signal a bus
 900         error.
 901         (pc_addr): Signal bus error, not illegal instruction for bogus
 902         pc.
 903
 904 Wed Nov 20 01:23:03 1996  Doug Evans  <dje@canuck.cygnus.com>
 905
 906         * Makefile.in: Delete all stuff moved to ../common/Make-common.in.
 907         (SIM_OBJS,SIM_EXTRA_CFLAGS,SIM_EXTRA_CLEAN): Define.
 908         * configure.in: Simplify using macros in ../common/aclocal.m4.
 909         Call AC_CHECK_HEADERS(unistd.h).
 910         * configure: Regenerated.
 911         * config.in: New file.
 912         * interp.c: #include "callback.h".
 913         * simops.c: #include "config.h".  #include <unistd.h> if present.
 914
 915 Fri Nov  8 16:19:55 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 916
 917         * d10v-sim.h (simops): Add flag is_long.
 918         (State): Add pc_changed.  Instructions which update the PC should
 919         use the JMP macro which sets this.
 920         (JMP): New macro.  Sets the PC and the pc_changed flag.
 921
 922         * gencode.c (write_opcodes): Add is_long field.
 923
 924         * interp.c (lookup_hash): If we blindly apply a short opcode's mask
 925         to a long opcode we could get a false match.  Check the opcode size.
 926         (hash): Add a size field to the hash table.
 927         (sim_open): Initialize size field in hash table.
 928         (sim_resume): Change to logic for setting the PC.  Used to increment the
 929         PC if it had not been changed.  This didn't allow single-instruction loops.
 930         Now checks the flag State.pc_changed.  Also now stops when ^C is received.
 931         (dmem_addr): Fix translation of data segments to unified memory.
 932         (sim_ctrl_c): New function.  When ^C is received, set stop_simulator flag.
 933
 934         * simops.c: Changed all branch and jump instructions to use new JMP macro.
 935         (OP_20000000): Corrected trace information to show this is a ldi.l, not
 936         a ldi.s instruction.
 937
 938 Thu Oct 31 19:13:55 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 939
 940         * interp.c (sim_fetch_register, sim_store_register): Fix bug where
 941         updating the accumulators was overwriting other parts of the global
 942         State variable.
 943
 944 Wed Oct 30 17:35:14 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 945
 946         * interp.c (bfd.h) Don't include it here any more.
 947         (text{,_start,_end}): Move here from simops.c and make extern.
 948         (decode_pc): New function to return the PC as an address that the
 949         debugger can use.
 950         (dmem_addr): Print decoded PC in error message.
 951         (pc_addr): Ditto.
 952
 953         * simops.c (bfd.h) Don't include it here any more.
 954         (text{,_start,_end}): Move to simops.c.
 955         (trace_input_func): Move decoding of PC, and looking up .text
 956         start to decode_pc.
 957
 958         * d10v_sim.h (bfd.h): Include it here.
 959         (text{,_start,_end}): Add external declarations.
 960         (exec_bfd): Ditto.
 961         (decode_pc): Ditto.
 962
 963 Tue Oct 29 12:13:52 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 964
 965         * interp.c (sim_size): Now allocates unified memory for imap segments
 966         0,1,2, and 127. Initializes imap0 and imap1 to 0x1000.  Initializes dmap to 0.
 967         (sim_write): Just call xfer_mem().
 968         (sim_read): Just call xfer_mem().
 969         (xfer_mem): New function. Does appropriate memory mapping and copies bytes.
 970         (dmem_addr): New function. Reads dmap register and translates data
 971         addresses to local addresses.
 972         (pc_addr): New function. Reads imap register and computes local address
 973         corresponding to contents of the PC.
 974         (sim_resume): Change to use pc_addr().
 975         (sim_create_inferior): Change reinitialization code. Also reinitializes
 976         imap[01] and dmap.
 977         (sim_fetch_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
 978         (sim_store_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
 979
 980         * simops.c (MEMPTR): Redefine to use dmem_addr().
 981         (OP_5F00): Replace references to STate.imem with dmem_addr().
 982
 983         * d10v-sim.h (State): Remove mem_min and mem_max. Add umem[128].
 984         (RB,SW,RW,SLW,RLW): Redefine to use dmem_addr().
 985         (IMAP0,IMAP1,DMAP,SET_IMAP,SET_IMAP1,SET_DMAP): Define.
 986
 987 Tue Oct 22 15:22:33 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 988
 989         * d10v_sim.h (_ins_type): Reorganize, so that we can provide
 990         better statistics, like not counting NOPS as parallel
 991         instructions, and printing total cycles.
 992         (ins_type_counters): Make unsigned long.
 993         (left_nops,right_nops): Fold into ins_type_counters.
 994
 995         * simops.c (trace_input_func): Print new instruction types.
 996         Handle OP_R2R3 as input types.
 997         (OP_{38000000,7000}): Correctly sign extend bytes.
 998         (OP_5E00): Don't count NOPs as parallel instructions.
 999         (OP_460B): Remove unused variable.
1000         (OP_5F00): Ditto.
1001
1002         * interp.c (ins_type_counters): Make unsigned long.
1003         (left_nops,right_nops): Delete.
1004         (most functions): Add prototypes.
1005         (INLINE): If GCC and optimize define as __inline__.
1006         ({,lookup_}hash,get_operands): Declare as INLINE.
1007         (do_parallel): Count conditional operations.
1008         (add_commas): New function, to add commas every 3 digits.
1009         (sim_size): Call add_commas to print numbers.
1010         (sim_{open,resume}): Delete unused variables.
1011         (sim_info): Provide better statistics.
1012         (sim_read): Add int return type.
1013
1014 Mon Oct 21 16:16:26 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
1015
1016         * interp.c (sim_resume): Change the way single-stepping and exceptions
1017         are handled so single-stepping works again.
1018
1019 Thu Oct 17 12:24:16 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1020
1021         * endian.c: Optimize simulated loads/stores on x86, AIX, and big
1022         endian hosts.
1023
1024         * configure.in (--enable-sim-bswap): New switch to enable using
1025         the BSWAP instruction on x86's.
1026         * configure: Regenerate.
1027
1028         * Makefile.in ({SWAP,CONFIG}_CFLAGS): Add --enable-sim-bswap
1029         support.
1030
1031 Wed Oct 16 13:50:06 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1032
1033         * endian.c: New file.  Move endian functions here from interp.c.
1034         Optimize code, and make it work as either inline functions or as a
1035         separate file.
1036
1037         * interp.c: Move endian functions from here to endian.c.
1038
1039         * Makefile.in (INCLUDE): Add endian.c.
1040         (run,libsim.a): Add dependency on endian.o.
1041         (endian.o): Add dependency.
1042
1043         * d10v_sim.h (read/write support): Always go through the machine
1044         independent endian functions.  If compiling with GCC and
1045         optimizing, include endian.c so the endian functions are inlined.
1046
1047         * simops.c (OP_5F00): Correct tracing of accumulators.
1048
1049 Tue Oct 15 10:57:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1050
1051         * simops.c (OP_5F00): Add support for getpid, kill system calls.
1052
1053         * interp.c (do_{2_short,parallel}): If an exception is raised,
1054         don't execute the second instruction.
1055
1056 Sat Oct 12 22:17:43 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1057
1058         * simops.c (OP_{31000000,6601,6201,6200}): Store address in a
1059         temporary in case the register is overriden when loading.
1060         (OP_6200): Output type is OP_DREG for tracing.
1061
1062 Fri Oct  4 23:46:18 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1063
1064         * d10v_sim.h (struct _state): Add mem_{min,max} fields.
1065
1066         * interp.c (sim_size): Initialize mem_{min,max} fields.
1067         (sim_write): Update mem_{min,max} fields.
1068         (sim_resume): If PC is not in the minimum/maximum memory range,
1069         abort.
1070         (sim_create_inferior): Preserve mem_{min,max} fields.
1071
1072 Fri Sep 27 13:11:58 1996  Mark Alexander  <marka@cygnus.com>
1073
1074         * simops.c (OP_5F00): Add support for time() system call.
1075
1076 Wed Sep 25 16:31:41 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1077
1078         * simops.c (OP_{6E01,6A01,6E1F,6A00}): Print both words being
1079         stored if tracing.
1080         (OP_5F00,trace_{in,out}put_func): Add finer grain tracing for
1081         system calls.
1082
1083 Mon Sep 23 17:55:30 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1084
1085         * simops.c (op_types): Add OP_{CONSTANT8,R2,R3}.
1086         (trace_input_func): Add support for  OP_{CONSTANT8,R2,R3}.
1087         (OP_{4900,24800000,4800,4A00,4B00,4D00,4C00}): Add OP_R2 and OP_R3
1088         to call/subroutine returns to trace the first two arguments and
1089         the return value.  For small jumps, use CONSTANT8, not CONSTANT16.
1090
1091 Fri Sep 20 15:36:45 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
1092
1093         * interp.c (sim_create_inferior): Reinitialize State every time
1094         sim_create_inferior() is called.
1095
1096 Thu Sep 19 21:38:20 1996  Michael Meissner  <meissner@wogglebug.ziplink.net>
1097
1098         * simops.c (OP_{401,2000000,601,3000000,23000000}): Get sign right
1099         on comparisons.
1100         (OP_401): Fix tracing information.
1101
1102 Thu Sep 19 10:30:22 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1103
1104         * simops.c (SIZE_{PC,LINE_NUMBER}): New default sizes for output.
1105         (trace_input_func): Use them.
1106         (trace_input_func): Make sure there is a trailing space after the
1107         instruction.
1108         (OP_6200): Fix tracing info.
1109
1110         * Makefile.in (run): Add dependencies on libbfd.a and
1111         libiberity.a.
1112
1113 Wed Sep 18 09:13:25 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1114
1115         * d10v_sim.h (DEBUG_INSTRUCTION): New debug value to include line
1116         numbers and function names in debug trace.
1117         (DEBUG): If not defined, set to DEBUG_TRACE, DEBUG_VALUES, and
1118         DEBUG_LINE_NUMBER.
1119         (SIG_D10V_{STOP,EXIT}): Values to represent the stop instruction
1120         and exit system call trap being executed.
1121
1122         * interp.c (sim_stop_reason): Set exit code correctly for stop
1123         instruction and exit system call trap.
1124
1125         * configure.in (--enable-sim-cflags): Remove trace case.
1126         (--enable-sim-debug): New switch to set the debug values.
1127         * configure: Regenerate.
1128
1129         * simops.c (trace_{input,output}_func): Rename from
1130         trace_{input,output}.
1131         (trace_{input,output}): Call trace_{input,output}_func if
1132         d10v_debug is non-zero.
1133         (SIZE_INSTRUCTION): Cut down to 8.
1134         (SIZE_OPERANDS): Cut down to 18.
1135         (SIZE_LOCATION): New value for size of line number, function name
1136         field.
1137         (init_text_p,text{,_start,_end}): New static variables for
1138         printing line number and function name.
1139         (exec_bfd): New external that run.c sets.
1140         (trace_input_func): Print line number and function name if
1141         available and if desired.
1142         (OP_4E09): Don't print out DBT message.
1143         (OP_5FE0): Set exception field to SIG_D10V_STOP.
1144         (OP_5F00): Set exception field to SIG_D10V_EXIT.
1145
1146 Sat Sep 14 22:18:43 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1147
1148         * interp.c (do_2_short): If the instruction encodes jump->ins,
1149         don't do the second instruction if the jump succeeds.
1150
1151 Fri Sep 13 22:35:19 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1152
1153         * simops.c (OP_5F00): Use unknown traps to print all GPRs,
1154         accumulators, PC, and F0/F1/C flags.
1155
1156 Thu Sep 12 12:50:11 1996  Mark Alexander  <marka@cygnus.com>
1157
1158         * simops.c (OP_5F00): Fix problems with system calls.
1159
1160 Thu Sep 12 12:19:28 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1161
1162         * simops.c (OP_5F00): Correct tracing information for trap.
1163
1164 Wed Sep 11 18:55:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1165
1166         * Makefile.in (CSEARCH): Correctly find opcodes directory.
1167
1168 Mon Sep  9 13:27:26 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1169
1170         * simops.c (trace_output): Properly align accumulator output.
1171         (OP_3{0,2,4}00): Properly parenthesize test expression.  Add error
1172         if shift count is too high.
1173         (OP_4E{00,02,04,20,22,40,42}): Make tests agree with book.
1174         (OP_4E09): Make cpfg properly trace the input flags.
1175         (op_types): Add OP_FLAG_OUTPUT.
1176         (trace_{input,output}): Support OP_FLAG_OUTPUT.
1177         (OP_31000000): This ld2w varient is a 16-bit memory reference, not
1178         an 8-bit memory reference instruction for tracing purposes.
1179         (OP_201): Addi needs to set the carry.
1180
1181 Fri Sep  6 17:56:17 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
1182
1183         * simops.c (OP_2600, OP_2601): Changed min and max comparisons
1184         to use signed register values.
1185
1186 Wed Sep  4 11:35:17 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1187
1188         * d10v_sim.h (DEBUG_*): Add bit flags for controlling debug
1189         output.
1190         (_ins_type): New enumeration to specify which container an
1191         instruction is in, and whether it is part of a parallel operation.
1192         (_state): Add ins_type field.
1193         ({,u}int{8,16,32,64}): Use limits.h to size the appropriate types.
1194         (ins_type_counters): Counters for the various instruction types.
1195         ({left,right}_nops): Counters for the number of nops in each
1196         container.
1197         (d10v_debug): New variable to indicate whether debugging is turned
1198         on.
1199
1200         * simops.c: (all functions): Change all #ifdef DEBUG code so that
1201         the input and output values can be traced, along with the
1202         instruction type.  Make the -t option enable tracing.
1203         (all functions): Change printf calls to use the printf_filtered
1204         function in the callback table.
1205
1206         * interp.c (_leftright): New enumeration to say whether 2 short
1207         instructions are done left first or right first.
1208         (do_{long,2_short,parallel}): Indicate in the machine state which
1209         type of instruction this is.  Count each of the types of
1210         instructions executed.
1211         (sim_size): Only print the memory sizes if DEBUG_MEMSIZE debug
1212         flag is set.
1213         (sim_resume): Pass left/right indication to do_2_short.
1214         (all functions): Change printf calls to use the printf_filtered
1215         function in the callback table.
1216         (sim_trace): Turn on debug flag if DEBUG was defined, and call
1217         sim_resume.
1218         (sim_info): Print out statistics on instructions.
1219         (sim_{trace,create_inferior}): Eliminate extraneous output unless
1220         debugging.
1221         (sim_open): If args == -t and DEBUG was defined, set d10v_debug.
1222         Only initialize the hash table the first time sim_open is called.
1223
1224         * Makefile.in: Make objects depend on d10v_sim.h.
1225         ({,SIM_}CFLAGS): Include configure dependent switches.  Setting
1226         CFLAGS does not override host/target defines or SIM_CFLAGS.
1227         (CC_FOR_BUILD,gencode): Use CC_FOR_BUILD to compile gencode.
1228         (run): By default, the math library is not needed to be linked
1229         in.
1230         ({BFD,LIBIBERTY}_LIB): Define as variables so they can be
1231         overridden.
1232         (VPATH): Don't set to anything but @srcdir@ to work with non-GNU
1233         makes.
1234         ({run,callback}.o): Provide explicit paths to their appropriate
1235         source directories.
1236         (gencode{,.o},d10v-opc.o): Split compilation into creating object
1237         and linking.  Instead of linking in libopcodes.a, just compile
1238         d10v-opc.o directly to handle canadian cross.
1239         (CSEARCH): Add opcodes directory.
1240
1241         * configure.in (--enable-sim-cflags): New switch to allow user to
1242         set the defaults.
1243         (CC_FOR_BUILD): Deal with canadian crosses.
1244         * configure: Regenerate.
1245
1246 Wed Sep 04 04:45:34 1996  Mark Alexander  <marka@cygnus.com>
1247
1248         * simops.c: Include correct syscall.h for d10v, not host's.
1249         Fix #ifdef SYS_stat.
1250
1251 Tue Sep  3 14:00:04 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
1252
1253         * simops.c (OP_5F00): Wrap all SYS_xxx traps with #ifdef.
1254         Add trap 2 to be printf and trap 3 to be putchar.
1255
1256 Wed Aug 28 21:42:34 1996  Mark Alexander  <marka@cygnus.com>
1257
1258         * Makefile.in, d10v_sim.h, interp.c, simops.c: Add support
1259         for low-level system calls.
1260
1261 Wed Aug 28 17:33:19 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
1262
1263         * Makefile.in, d10v_sim.h, interp.c: Fix byte-order problems.
1264
1265 Mon Aug 26 18:30:28 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
1266
1267         * d10v_sim.h (SEXT32): Added.
1268         * interp.c: Commented out printfs.
1269         * simops.c:  Fixed error in sb and st2w.
1270
1271 Thu Aug 15 13:30:03 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
1272
1273         * Makefile.in, d10v_sim.h, interp.c, simops.c: Added remaining
1274         DSP instructions.  Added modulo addressing.
1275
1276 Sun Aug 11 12:57:15 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
1277
1278         * Makefile.in, d10v_sim.h, interp.c, simops.c: Snapshot.
1279
1280 Fri Aug  2 17:44:24 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
1281
1282         * d10v_sim.h, simops.c: Snapshot.
1283
1284 Thu Aug  1 17:05:24 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
1285
1286         * ChangeLog, Makefile.in, configure, configure.in, d10v_sim.h,
1287         gencode.c, interp.c, simops.c: Created.
1288