sim/ppc/ChangeLog

   1 Tue Oct 31 15:20:04 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
   2
   3         * configure.in: Add support for --enable-sim-inline,
   4         --enable-sim-bswap, --enable-sim-cflags, --enable-sim-complex,
   5         --enable-sim-switch, --enable-sim-duplicate, --enable-sim-filter,
   6         and --enable-sim-endian switch to control various Makefile
   7         variables.
   8         * configure: Regenerate from configure.in.
   9         * Makefile: Add various Make variables that the various switches
  10         alter.
  11
  12         * std-config.h (DEFAULT_INLINE): Don't set this to 2 if using GCC
  13         and optimizing by default.
  14
  15 Fri Oct 27 19:26:27 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
  16
  17         * bits.h (ROTL32, ROTL64): Were functions, made them macros, now
  18         make them functions again.  Appears 2.6.3 is confused by just a
  19         macro.
  20
  21 Thu Oct 26 18:31:58 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
  22
  23         * ppc-endian.c (SWAP_8): Fix 8 byte swap!
  24
  25         * psim.c (psim_create): Not correctly checking that runtime
  26         configuration of things like ENDIAN, ENVIRONMENT and ALIGNMENT
  27         matched the compiled in ones.
  28
  29         * debug.h (ITRACE), igen.c: Tidy up more tracing flags -
  30         trace_semantics is now different to trace_idecode, the former
  31         checks the cache.
  32
  33 Tue Oct 24 21:54:13 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
  34
  35         * ppc-instructions (mtsrin): Missing instruction
  36         * ppc-instructions (mfsrin): Missing instruction
  37         * ppc-instructions (eieio): Missing instruction
  38
  39 Tue Oct 24 20:55:29 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
  40
  41         * build-psim: New shell script - see internals for usage,
  42         simplifies the process of building custom simulators.
  43
  44 Mon Oct 23 23:48:59 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
  45
  46         * std-config.h (SEMANTICS_INLINE): Tidy up notes on each of the
  47         INLINE macros.  Make SEMANTICS_INLINE == 1 if DEFAULT_INLINE == 2.
  48         Don't use DEFAULT_INLINE to define REGISTERS_INLINE DEVICES_INLINE
  49         DEVICE_TREE_INLINE or INTERRUPTS_INLINE as none of these are on
  50         the instruction or data critical paths.
  51
  52         * FIXME: need to set up OS_EMUL_INLINE/EMUL_GENERIC_INLINE but
  53         not on critical path.
  54
  55         * FIXME: devices.c/emul_netbsd.c would benefit (slightly) from
  56         the inclusion of device_tree.c/emul_generic.c.
  57
  58 Mon Oct 23 00:31:50 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
  59
  60         * os_emul.[hc], emul_generic.[hc], emul_netbsd.[hc]: replace
  61         system.[hc].  Start of suport for multiple emulations and
  62         emulation state (os_emul object).
  63
  64         * emul_generic.[hc]: Start of code to implement proper system call
  65         tracing (from spy).
  66
  67 Sun Oct 22 21:33:51 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
  68
  69         * cpu.h, cpu.c (cpu_init): New function, zero the registers before
  70         the processor is started. Fixes problem of registers being
  71         undefined when restarting from within gdb.
  72
  73         * cpu.h, cpu.c (cpu_flush_icache): New function, flushes the
  74         instruction cache (if present).  Fixes problem of cpu caching gdb
  75         breakpoint instructions.
  76
  77         FIXME: PSIM sometimes aborts calling error(), it should instead
  78         call sim_error() say which takes care of housekeeping such as
  79         saving the CIA before calling error.
  80
  81         * NOTE: cpu_flush_cache() instead of cpu_synchronize_context() is
  82         used when restarting a simulation because the latter has the
  83         unwanted side effect (well I as a kernel hacker think it is) of
  84         performing an isync when the instruction stream doesn't contain
  85         one.
  86
  87 Sun Oct 22 19:27:48 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
  88
  89         * mon.h (new), mon.c (new), std-config.h (WITH_MON): Performance
  90         monitoring module. Counts both instructions issued and
  91         load/stores.
  92
  93         * NOTE: mon does not contain to count instruction loads as this
  94         information is already available from the mon_issue() hook.
  95
  96         * FIXME: mon doesn't have access to register usage information.
  97         This is needed if the user wants to monitor things like register
  98         stalls.
  99
 100         * igen.c (lf_print_c_semantic), vm_n.h: Add counting code.
 101
 102         * psim.h, psim.c (psim_create), cpu.h, cpu.c (cpu_create): Attach
 103         a common monitor to each of the cpus. Delete
 104         cpu_increment_number_of_insns() and cpu_get_number_of_insns()
 105         replaced by copied code in mon.[hc].
 106
 107 Sun Oct 22 18:42:45 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 108
 109         * sim_calls.c, main.c, psim.c (psim_create): always create
 110         `WITH_SMP' cpus.  The actual number of CPU's active in a
 111         simulation run is taken from the device node: /init/smp (an
 112         integer). WITH_SMP changed to 2 (remember to put it back to 0).
 113
 114 Fri Oct 20 17:26:54 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 115
 116         * system.c: More system call emulation.  If code appears NetBSD
 117         specific, make conditional to being compiled on a NetBSD system
 118         (sigh).
 119
 120 Wed Oct 18 23:02:20 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 121
 122         * Makefile.in, gen.c(delete), igen.c(new), dgen.c(new),
 123         lf.[ch](new), table.[ch](new): Split into two generators - igen
 124         that outputs the instruction tables and dgen that outputs the spr
 125         tables.  Add -f (filter out) flag to igen to filter out certain
 126         instructions (ex 64 bit ones) from the created tables.  Include
 127         $(LIBIBERTY_LIB) in link options in case host lacks some libc
 128         functions.
 129
 130         * NOTE: igen, since it was originally written for the
 131         PowerPC/RS6000, things the MSB is 0 and the LSB is 63{31}.
 132
 133         * Makefile.in, std-config.h, ppc-cache-rules(new),
 134         ppc-opcode-complex(new), ppc-opcode-simple(new): (for igen) Create
 135         cache-rule and opcode-rule tables from macros found std-config.h.
 136         Delete corresponding macro's from std-config.h.
 137
 138         * FIXME: under this new igen scheme, when playing around with igen
 139         options, you'll find that depenencies don't work very well.
 140
 141         * igen.c (gen_itable_c, gen_itable_h), Makefile.in: code to output
 142         an table of all the instructions.  Code to output a type
 143         enumerating all the instructin names.
 144
 145         * igen.c(lf_print_c_semantic): Move call to increment instruction
 146         counter so that it occures _after_ the instruction has been fully
 147         validated, was double counting illegal/invalid instructions.  Add
 148         conditional so only compiled in when WITH_PROFILE enabled (enabled
 149         by default).
 150
 151         * igen.c, cpu.h, cpu.c(cpu_increment_number_of_insns): Include
 152         itable.h, count individual instruction types not just total,
 153         adjust reporting functions to output this.
 154
 155         * ppc-instructions (64 bit Load Doubleword with Update Indexed):
 156         Had 32./ instead of 31./
 157
 158         * ppc-instructions (64 bit Store Double Word Conditional Indexed):
 159         bitrot - updated to use newer CR register operators.
 160
 161         * ppc-instructions (64bit Floating Convert from Integer
 162         Doubleword): Correct call to Round_Float().
 163
 164 Mon Oct 16 00:31:20 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 165
 166         * basics.h: #include "sim_callbacks.h" earlier so that its
 167         prototypes are declared in all other header files.
 168
 169         * bits.h, bits.c, idecode_expression.h (ROTL32, ROTL64): Update
 170         doc in bits.h, remove dead code in bits.c, move ROTL32/ROTL64 into
 171         bits.h.
 172
 173         * FIXME: the bits.h/bits.c macro's should be replaced with
 174         (inline) c functions.
 175
 176         * cpu.c(cpu_add_commas), device_tree.h, device_tree.c(scand_*):
 177         Add size of buffer argument to functions writing a string into a
 178         buffer.  Check for buffer overflow.
 179
 180 Sun Oct 15 22:16:11 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 181
 182         * devices.h, devices.c, debug.h, debug.c: add macro's for tracing
 183         of each device.  Make parameter names consistent so macros work.
 184         Use macro's in device functions.
 185
 186         * device_tree.c, devices.h, devices.c: include path to device in a
 187         devices node when creating it.
 188
 189         * device_tree.c, debug.h, debug.c: Add tracing of `device-tree'.
 190
 191         * core.c: add tracing of core-device, adjust parameter names in
 192         core functions to be consistent with those in devices*.
 193
 194 Sun Oct 15 20:33:20 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 195
 196         * debug.h, debug.c (trace_option): New function. Parses the trace
 197         option, updating the trace array.
 198
 199         * debug.h, debug.c (trace_usage): New function. Outputs the list
 200         of all possible trace options.
 201
 202         * sim_calls.c (sim_open), main.c (main): Use new trace_option() to
 203         parse trace options specified with the simpler -t flag.  Adjust
 204         usage.
 205
 206         * FIXME: basic parsing of command line options is still duplicated
 207         by main.c and sim_calls.c
 208
 209 Thu Oct 26 10:42:28 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 210
 211         * Makefile.in (clean): Delete *.i and *.out files.
 212
 213         * ppc-endian.c (SWAP_n): Add SET argument to allow use of SWAP
 214         macros for either assignment or return.  Fix SWAP_8 to use a
 215         union, and two SWAP_4's.  Delete SWAP_N, since nobody uses it now.
 216         (ENDIAN_N): Add SET argument to SWAP_n calls.  Delete macro defs
 217         that hardwired swapping on/off, let optimizer delete dead code.
 218
 219         * main.c (main): Add printf that we caught a signal and print out
 220         the failing address.
 221
 222 Thu Oct 19 21:43:39 1995  Fred Fish  <fnf@fishfood.amigalib.com>
 223
 224         * Makefile.in:  Remove tabs from otherwise empty line.
 225         Confuses many non-GNU versions of "make".
 226
 227 Wed Oct 18 08:51:25 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 228
 229         * Makefile.in (clean): Delete files produced by gen.
 230
 231 Mon Oct 16 17:34:24 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 232
 233         * gen.c (lf_print_c_semantic_function): Move counting # of
 234         instructions here so it works with caching.
 235         (gen_idecode_c): Move from here.
 236
 237 Wed Oct 11 17:13:15 1995  Andrew Cagney  <cagney@highland.com.au>
 238
 239         * gen.c, ppc-instructions, psim.c: Fix code for generating
 240         cracking instruction cache.  Delete the code that cached just the
 241         result from doing an instruction lookup - this ran slower than no
 242         cache at all.
 243
 244 Fri Oct 13 09:58:43 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 245
 246         * Makefile.in (gen.o): Include $(INLINE_CFLAGS).
 247
 248         * debug.h (ppc_trace): Rename from trace, to avoid a conflict with
 249         TCL when gdb is linked with the simulator.
 250         * debug.c (ppc_trace): Ditto.
 251         * sim_calls.c (sim_open): Change trace -> ppc_trace.
 252         * main.c (main): Ditto.
 253
 254         * cpu.c (cpu_add_commas): Remove extra static.
 255
 256 Thu Oct 12 11:35:53 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 257
 258         * Makefile.in (psim.o): Now that inlines are turned on, make
 259         psim.o depend on all sources.
 260
 261         * cpu.c (cpu_add_commas): New function to format a long with
 262         commas.
 263         (cpu_print_info): Use it to print number_of_insns.
 264
 265         * ppc-endian.c (SWAP_n): New macros to speed up byte swapping for
 266         2, 4, and 8 bytes.
 267         (ENDIAN_N): If both target and host byte orders are known, don't
 268         bother testing CURRENT_{TARGET,HOST}_BYTE_ORDER.
 269
 270         * ppc-endian.h (target specific H2T_n/T2H_n macros): Remove #if 0
 271         to allow target specific H2T_n/T2H_n macros to be used.
 272         (htonl, ntohl): If compiled on a 486 by GCC and WITH_BSWAP is
 273         non-zero, redefine the htonl/ntohl macros to use the BSWAP instead
 274         of the 3 instruction sequence that runs on 386s.
 275
 276         * std-config.h (WITH_{HOST,TARGET}_BYTE_ORDER): Don't override if
 277         specified on the compile line.
 278         (WITH_BSWAP): If not defined, define as 0.
 279
 280         * Makefile.in (INLINE_CFLAGS): Add -DDEFAULT_INLINE=2 to add
 281         default inline support.  Pass INLINE_CFLAGS when compiling.
 282
 283         * devices.{h,c} (unimp_device_ioctl): Use STATIC_DEVICES, not
 284         INLINE_DEVICES since GCC doesn't like inline functions that
 285         accept variable arguments.
 286         (stack_ioctl_callback): Make function just static because GCC
 287         doesn't like inline functions that accept variable arguments.
 288
 289         * devices.h (STATIC_DEVICES): Define as empty if not defined.
 290
 291         * inline.c: Correct pathnames of included C files to match current
 292         implementation.
 293
 294         * inline.h (STATIC_DEVICES): If DEVICES_INLINE is defined to be
 295         non-zero, define STATIC_DEVICES to be static.
 296
 297         * std-config.h (INLINE): If GNU C and optimizing, define this as
 298         __inline__.
 299         (DEFAULT_INLINE): If not defined, define as 0.
 300         (ENDIAN_INLINE): If not defined, define as DEFAULT_INLINE.
 301         ({CORE,VM,CPU,EVENTS,REGISTERS,INTERRUPTS}_INLINE): Ditto.
 302         ({SPREG,IDECODE}_INLINE): Ditto.
 303
 304 Wed Oct 11 17:13:15 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 305
 306         * ppc-instructions: Initial cut of floating point suport added.
 307         Of note include - use of host IEEE floating point instructions,
 308         use of PowerPC manual pseudo code to handle the FPSCR.  It is not
 309         currently a pretty sight.
 310
 311         * memory_map.h, memory_map.c, memory_map_n.h, core.h, core.c:
 312         merge into core.h, core.c, core_n.h. The type memory_map replaced
 313         with core_map.  This removes a level of pointer indirection when
 314         translating an address.
 315
 316         * memory_map.h, memory_map.c, memory_map_n.h: delete.
 317
 318         * Makefile.in et.al (sorry): tweek to use new core, core_map and
 319         core.h.
 320
 321 Wed Oct 11 12:10:26 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 322
 323         * sim_calls.c, main.c: Add -g (trace_gdb) option, add tracing to
 324         most of the other functions in sim_calls.c.
 325
 326         * basics.h (CONCAT3), memory_map.c, memory_map_n.h, Makefile.in:
 327         Add macros to better cover up `generic' code.  Makes it possible
 328         to step through the generic code!
 329
 330         * vm.c, vm_n.h, Makefile.in: ditto
 331
 332 Tue Oct 10 15:42:59 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 333
 334         * devices.h, devices.c, memory_map.h, memory_map.c: Changed
 335         callback interface so that there is a read/write buffer but no
 336         read/write_word.  VEA default memory read/write handler sometimes
 337         couldn't resolve an access and of those some were for a memory
 338         fault and some were because gdb was making a bogus request.
 339
 340         * devices.h, devices.c, memory_map.h, memory_map.c, vm.h, vm.c:
 341         eliminate transfer_mode (raw or cooked) parameter from read/write
 342         buffer.
 343
 344 Fri Oct  6 20:23:56 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 345
 346         * ppc-instructions (fmul, fmuls): correct instruction format - had
 347         FRB instead of FRC.
 348
 349 Wed Oct  4 17:31:12 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 350
 351         * psim.c, device_tree.h, device_tree.c, devices.c (printd_*,
 352         scand_*): new functions to parse/print fields in device names
 353         while hiding any machine dependency.
 354
 355         * devices.c, psim.c: Change the stack init code so that it is
 356         handled by a device.  Arguments passed across using a device ioctl
 357         (hack).
 358
 359         * devices.h, devices.c: device ioctl callback changed to allow a
 360         variable number of arguments.  This gives greater flexability and
 361         greater chance of bugs.
 362
 363 Tue Oct  3 22:01:56 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 364
 365         * main.c (printf_filtered, error): Missing va_end() to close off
 366         variable argument use.
 367
 368         * Makefile.in (tmp-gencode): comment out hack to get around some
 369         versions of make not handling files being created as side-effects.
 370
 371         * gen.c (lf_open): Add -n (real_file_name) option.  Specifies an
 372         alternative file name to use in output files for things like #line
 373         macros.
 374
 375         Makefile.in (tmp-gencode): Use gen -n so that debug info is
 376         correct.
 377
 378         * Makefile.in (TARGETLIB): Use this instead of libsim.a in the
 379         Makefile.
 380
 381 Sat Oct  7 22:40:59 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 382
 383         * sim_calls.c (sim_set_callbacks): Define new function.
 384
 385 Fri Oct  6 17:23:10 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 386
 387         * psim.c (psim_print_info): Print exit status or signal number.
 388
 389 Mon Oct  2 11:46:37 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 390
 391         * cpu.c (struct _cpu): Add number_of_insns field to trace how many
 392         instructions are executed.
 393         (cpu_increment_number_of_insns): New function to increment the
 394         number of instructions issued.
 395         (cpu_get_number_of_insns): New function to return the number of
 396         instructions issued.
 397         (cpu_print_info): New function to print cpu related information.
 398         At present, print the number of instructions executed.
 399
 400         * gen_idecode_c: Emit call to cpu_increment_number_of_insns within
 401         idecode_issue.
 402
 403         * psim.c (psim_print_info): New function to iterate over each of
 404         the CPU's calling cpu_print_info.
 405
 406         * psim.h,cpu.h: Add new declarations.
 407
 408         * sim_calls.c (sim_open): Add argument processing to add the same
 409         switches main.c accepts for the standalone processor.
 410         (sim_close): Call psim_print_info if -I.
 411
 412         * main.c (main): Add comment saying to update sim_calls.c when
 413         adding switches.  Add -I to call psim_print_info when done.
 414         (usage): Update usage message.
 415
 416 Sun Oct  1 13:52:59 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 417
 418         * main.c (printf_filtered): Correct to match new prototype.
 419
 420 Sat Sep 30 20:47:05 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 421
 422         * sim_callbacks.h (printf_filtered): Correct prototype.
 423
 424 Thu Sep 21 16:26:49 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 425
 426         * device_tree.c (OEA_MEMORY_SIZE): Define if not defined to
 427         0x100000.
 428         (clayton_memory_size): Define as OEA_MEMORY_SIZE.
 429
 430         * std-config.h (WITH_TRACE): Default to 1 now.
 431
 432         * psim.c (write_stack_arguments): Don't write any stack arguments
 433         if OEA.
 434
 435         * main.c (main): Switch to using getopt.  Make -p also set
 436         trace_semantics.  Make -a turn on all trace flags.  Make -C turn
 437         on console tracing.
 438
 439         * device_tree.c (create_option_device_node): Assume a program is
 440         OEA if the start address is < 4096, not just == 0.
 441
 442 Wed Sep 20 13:36:06 1995  Ian Lance Taylor  <ian@cygnus.com>
 443
 444         * Makefile.in (maintainer-clean): New synonym for realclean.
 445
 446 Sun Sep 10 10:23:56 1995  Michael Tiemann  <tiemann@axon.cygnus.com>
 447
 448         * registers.c (register_description): Add gdb synonyms for cr
 449         (cnd) and msr (ps).
 450
 451 Fri Sep  8 13:16:10 1995  Ian Lance Taylor  <ian@cygnus.com>
 452
 453         * Makefile.in (install): Don't install in $(tooldir).
 454
 455         * configure.in: Call AC_CONFIG_HEADER.  Don't try to use
 456         bfd/hosts/*.h file or bfd/config/*.mh file.  Call AC_PROG_CC and
 457         AC_PROG_RANLIB.  Substitute in values for CFLAGS, HDEFINES, AR,
 458         and CC_FOR_BUILD.  Call AC_CHECK_HEADERS for various header files.
 459         Touch stamp.h if creating config.h.
 460         * configure: Rebuild.
 461         * config.in: New file, created by autoheader.
 462         * Makefile.in (AR): Define as @AR@.
 463         (CC): New variable, defined as @CC@.
 464         (CFLAGS): Define as @CFLAGS@.
 465         (CC_FOR_BUILD): New variable, defined as @CC_FOR_BUILD@.
 466         (RANLIB): Define as @RANLIB@.
 467         (HDEFINES, TDEFINES): New variables.
 468         (@host_makefile_frag@): Remove.
 469         (mostlyclean): Make the same as clean, not distclean.
 470         (clean): Remove config.log.
 471         (distclean): Remove config.h and stamp-h.
 472         (Makefile): Don't depend upon @frags@.  Just rebuild Makefile when
 473         invoking config.status.
 474         (config.h, stamp-h): New targets.
 475         (gen, gen.o): Build with CC_FOR_BUILD, not CC.
 476         (ppc-config.h): Rename from old config.h build.
 477         * (basics.h,gen.c,ppc-endian.c,psim.c): Include ppc-config.h.
 478
 479 Fri Sep  8 09:51:03 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 480
 481         * configure{,.in}: Don't include sysdep.h from bfd, since bfd no
 482         longer provides it.
 483         * basics.h (sysdep.h): Don't include it.
 484         * Makefile.in (BASICS_H): Remove sysdep.h.
 485
 486 Wed Sep  6 13:25:42 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 487
 488         * core.c (core_add_data): First growth of bss was being put at
 489         wrong address (0) instead of &end.
 490
 491         * core.c (core_add_stack, core_add_data): Was not handling case
 492         where bss/stack is grown across the current end-of-{bss,stack}.
 493
 494 Wed Sep  6 00:46:10 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 495
 496         * system.c (system_call): Fix SYS_break - was aligning bss to a
 497         page boundary instead of just an 8 byte one; On first call sbrk(0)
 498         != sbrk(0).
 499
 500 Thu Aug 24 14:48:54 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 501
 502         * Makefile.in (install): Fix install rule.
 503
 504 Tue Aug 22 09:31:18 1995  Michael Meissner  <meissner@tiktok.cygnus.com>
 505
 506         * system.c (system_call): Add read support.
 507
 508         * main.c (main): -t sets trace_device_tree.  Correct usage message
 509         to current reality.
 510
 511         * device_tree.c (update_memory_node_for_section): Make tracing
 512         output line up.  If not code or readonly, assume that the section
 513         is a data section and has read/write permissions.  Add readonly
 514         support.
 515
 516         * core.c (create_core_from_addresses): Print end address in traces
 517         and make tracing output line up.
 518
 519         * Makefile.in: Rewrite from Makefile to work with the Cygnus
 520         environment, and support compiling in a different directory than
 521         the sources reside in.
 522
 523         * ppc-endian.h: Rename from endian.h so that it doesn't get
 524         confused with /usr/include/sys/endian.h on Linux.  Add Linux
 525         endian support.
 526
 527         * ppc-endian.c: Rename to be consistant with ppc-endian.h.
 528         Include ppc-endian.h, not endian.h.
 529
 530         * basics.h (sysdep.h): Include sysdep.h that configure makes.
 531         Include ppc-endian.h, not endian.h.
 532
 533         * std-config.h: Rename from ppc-config.  Put #ifndefs around most
 534         configuration macros, so they can be overridden via CFLAGS.  By
 535         default, turn off tracing.
 536
 537         * configure.in: Clone from other simulator targets.
 538         * configure: Generate via autoconf from configure.in.
 539
 540 Sat Aug 19 09:05:32 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 541
 542         * ppc-instructions: fix srawi (was geting XER[CA] real wrong).
 543
 544         * interrupts.c (data_storage_interrupt): allow stack to grow by
 545         upto one MB per increment.
 546
 547         * ppc-instructions: divw was computing rA / rA not rA / rB
 548
 549         * main.c (main): really stupid. Wasn't exiting with correct status
 550
 551 Fri Aug 18 00:38:01 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 552
 553         * system.c (system_call): add system calls kill(2) and getpid(2).
 554
 555         * main.c (main): Check/return exit status when simulation
 556         finishes.
 557
 558 Thu Aug 17 14:29:18 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 559
 560         * device_tree.c (create_option_device_node): Alignment rules (at
 561         least for the moment) now are for strict alignment only for LE OEA
 562         mode.  (Because of compiler problems).
 563
 564         * system.c (system_call) SYS_exit: Wasn't exiting with correct status.
 565
 566 Thu Aug 17 01:16:38 1995  Andrew Cagney  <cagney@cagney@highland.com.au>
 567
 568         * vm.c (DEFINE_VM_DATA_MAP_WRITE_N): For miss aligned transfer
 569         forgot to return.
 570
 571         * system.c (system_call): didn't page align break argument before
 572         determining increment break increment.
 573
 574         * psim/ppc: Re-arange entire directory structure so that
 575         everything lives in the one directory.  While a pain for cleaning,
 576         makes building across multiple architectures much simpler.
 577
 578         * devices.c, device_tree.c: Added code that provides a simple
 579         illustration of how an interrupt control device could be
 580         implemented.
 581
 582         * devices.c: Added code so that the dumb console device can read
 583         (from stdin) as well as write to stdout.
 584