sim/d10v/ChangeLog

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