sim/d10v/ChangeLog

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