sim/d10v/ChangeLog

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