sim/d10v/ChangeLog

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