sim/d10v/ChangeLog

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