sim/d10v/ChangeLog

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