sim/d10v/ChangeLog

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