sim/d10v/ChangeLog

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