sim/d10v/ChangeLog

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