sim/v850/ChangeLog

   1 Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
   2
   3         * configure configure.in Makefile.in:  Update to new configure
   4         scheme which is more compatible with WinGDB builds.
   5         * configure.in:  Improve comment on how to run autoconf.
   6         * configure:  Re-run autoconf to get new ../common/aclocal.m4.
   7         * Makefile.in:  Use autoconf substitution to install common
   8         makefile fragment.
   9
  10 Mon Jan 20 16:05:34 1997  Michael Meissner  <meissner@tiktok.cygnus.com>
  11
  12         * simops.c (OP_{E0,2E0,6E0}): The multiply operations sign extend,
  13         not zero extend.
  14
  15 Tue Jan 14 17:06:03 1997  Stu Grossman  (grossman@critters.cygnus.com)
  16
  17         * simops.c:  Put ifdefs around things to make MSVC happy.  Get rid
  18         of unistd.h.  Disable SYS_stat, SYS_chown, SYS_time, SYS_times,
  19         SYS_gettimeofday and SYS_utime from MSVC.
  20
  21 Tue Dec 31 18:11:13 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
  22
  23         * simops.c (OP_10007E0): Know that kill encodes the signal number
  24         via: 0xdead0000 | signal and turn it back into a signal.
  25
  26 Fri Dec 27 14:44:06 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
  27
  28         * v850_sim.h (SIG_V850_EXIT): Define as -1.
  29
  30         * interp.c (sim_open): Cast calloc function.
  31         (sim_stop_reason): If signal is SIG_V850_EXIT, inform gdb the
  32         program exited with the appropriate exit code.
  33         (sim_set_interrupt): Declare buildargv.
  34
  35         * simops.c (OP_10007E0): Make exit signal normal exit.  Make time
  36         type correct and work on big endian systems.
  37
  38 Wed Nov 20 02:18:44 1996  Doug Evans  <dje@canuck.cygnus.com>
  39
  40         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
  41         (SIM_OBJS,SIM_EXTRA_CFLAGS,SIM_EXTRA_CLEAN): Define.
  42         * configure.in: Simplify using macros in ../common/aclocal.m4.
  43         Call AC_CHECK_HEADERS(unistd.h).
  44         * configure: Regenerated.
  45         * config.in: New file.
  46         * simops.c: #include "config.h".  #include <unistd.h> if present.
  47
  48 Sun Nov  3 23:02:54 1996  Stan Shebs  <shebs@andros.cygnus.com>
  49
  50         * v850_sim.h (State): New slots dummy_mem, pending_nmi.
  51         (EIPC, etc): New macros for system registers.
  52         * simops.c, interp.c: Use everywhere.
  53
  54         * interp.c: Add support for interrupts issued by interrupt
  55         generators, either PC- or time-based.  Controlled by simulator
  56         command "sim interrupt".
  57
  58         * interp.c: Add support for variable-size allocation of memory,
  59         via simulator command "sim memory-map".
  60         (map): Issue SIGSEGV for references to invalid memory regions.
  61
  62 Thu Oct 31 14:44:10 1996  Gavin Koch  <gavin@cygnus.com>
  63
  64         * simops.c: Include <sys/time.h> for struct timeval and
  65         struct timezone.
  66
  67 Wed Oct 30 08:49:10 1996  Jeffrey A Law  (law@cygnus.com)
  68
  69         * simops.c (OP_10007E0): Handle SYS_times and SYS_gettimeofday.
  70
  71         * simops.c (OP_10007E0): Handle SYS_time.
  72
  73 Tue Oct 29 14:22:55 1996  Jeffrey A Law  (law@cygnus.com)
  74
  75         * simops.c: Include <sys/stat.h>.
  76         (OP_10007E0): Handle SYS_stat.
  77
  78 Thu Oct 24 12:26:35 1996  Jeffrey A Law  (law@cygnus.com)
  79
  80         * simops.c (OP_10007E0): Don't declare errno.
  81
  82         * simops.c (OP_500): Mask off low bit in displacement
  83         for sld.w.
  84         (OP_501): Similarly.
  85
  86         * simops.c (OP_500): Fix displacement handling for sld.w.
  87         (OP_501): Similarly for sst.w.
  88
  89         * simops.c (trace_input): Remove all references to SEXT7.
  90         (OP_300, OP_400, OP_500, OP_380, OP_480, OP_501): Displacement
  91         is zero extended for sst/sld instructions.
  92         * v850_sim.h (SEX7): Delete.  It's no longer needed (and it
  93         was incorrect anyway).
  94
  95 Thu Oct 24 10:33:33 1996  Stu Grossman  (grossman@critters.cygnus.com)
  96
  97         * Makefile.in:  Get rid of srcroot.  Set all INSTALL macros via
  98         autoconf.
  99         * gencode.c (write_opcodes):  Pad operands field to account for
 100         MSVC braindamage.
 101         * simops.c:  Include errno.h.  Exclude SYS_chown, since MSVC
 102         doesn't support it.  (Why is this here in the first place?!?)
 103         * v850_sim.h:  Get rid of 64 bit defs.  Also, get rid of #elif's.
 104         Change number of operands in struct simops from 9 to 6.  Define
 105         SIGTRAP and SIGQUIT for MSVC.
 106
 107 Tue Oct 15 16:19:51 1996  Stu Grossman  (grossman@critters.cygnus.com)
 108
 109         * interp.c (MEM_SIZE):  It's now bytes, not a power of 2.
 110         * (map):  Add support for external mem in the 1->2 meg range.
 111         Also, abort() when memory access is way out of bounds.  (Better to
 112         die than to give wrong result.  (This will be fixed later.))
 113         * (sim_size):  MEM_SIZE is now bytes, not shift factor.
 114
 115 Tue Oct  1 15:53:24 1996  Gavin Koch <gavin@cygnus.com>
 116
 117         * simops.c (trace_input): Swapped order of operands for output
 118         output of OP_IMM_REG.  Changed the fetching of the operands for
 119         OP_LOAD32, and OP_STORE32 to work like op-function.
 120
 121 Mon Sep 30 15:46:33 1996  Stu Grossman  (grossman@critters.cygnus.com)
 122
 123         * interp.c:  Move includes of remote-sim.h and callback.h to
 124         v850-sim.h.
 125         * (lookup_hash): Add PC to report of hash failure.
 126         * (map load_mem store_mem):  New memory subsystem.  Models V851
 127         memory system.
 128         * (sim_write sim_read):  Use new memory subsystem.
 129         * (sim_resume):  Don't load and save PC into EIPC anymore.  Needed
 130         to make user-defined traps work right.
 131         * simops.c (OP_*):  Use new memory subsystem.
 132         * (OP_14007E0 (reti)):  Implement reti.
 133         * (OP_14996E0 (trap)):  Implement user-defined traps.  Move I/O to
 134         trap 31.  Use new memory subsystem.
 135         * v850_sim.h:  Prototypes for load_mem, store_mem and map.  Use
 136         load_mem in RLW macro.
 137
 138 Fri Sep 27 18:34:09 1996  Stu Grossman  (grossman@critters.cygnus.com)
 139
 140         * gencode.c (write_opcodes):  Output hex values for opcode mask
 141         and patterns.
 142         * interp.c (sim_resume):  Save and restore PC from the appropriate
 143         register.
 144         * (sim_fetch_register sim_store_register):  Fix byte-order problem
 145         with reading and writing registers.
 146         * simops.c (OP_FFFF):  Implement pseudo-breakpoint insn.
 147
 148 Fri Sep 27 17:42:37 1996  Jeffrey A Law  (law@cygnus.com)
 149
 150         * simops.c (trace_input): Fix thinko.
 151
 152 Wed Sep 18 09:54:12 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 153
 154         * simops.c (exec_bfd): Rename from sim_bfd.
 155         (trace_input): Ditto.
 156
 157 Thu Sep 12 12:03:05 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 158
 159         * simops.c (trace_input): Use find_nearest_line to print line
 160         number, function name or file name of PC.
 161
 162 Wed Sep 11 16:44:37 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 163
 164         * simops.c: Add tracing support.  Use SEXTxx macros instead of
 165         doing hardwired shifts.
 166
 167         * configure.in (--enable-sim-cflags): Add switch to add additional
 168         flags to simulator buld.  If --enable-sim-cflags=trace, turn on
 169         tracing.
 170         * configure: Regenerate.
 171
 172         * Makefile.in: Don't require a VPATH capable make if configuring
 173         in the same directory.  Don't use CFLAGS for configuration flags.
 174         Add flags from --enable-sim-cflags.  Support canadian cross
 175         builds.  Rebuild whole simulator if include files change.
 176
 177         * interp.c (v850_debug): New global for debugging.
 178         (lookup_hash,sim_size,sim_set_profile): Use
 179         printf_filtered callback, instead of calling printf directly.
 180         (sim_{open,trace}): Enable tracing if -t and compiled for tracing.
 181
 182         * v850_sim.h: Use limits.h to set the various sized types.
 183         (SEXT{5,7,16,22}): New macros.
 184
 185 Mon Sep  9 20:50:46 1996  Jeffrey A Law  (law@cygnus.com)
 186
 187         * interp.c (hash): Make this an inline function
 188         when compiling with GCC.  Simplify.
 189         * simpos.c: Explicitly include "sys/syscall.h".  Remove
 190         some #if 0'd code.  Enable more emulated syscalls.
 191
 192 Wed Sep  4 01:48:55 1996  Jeffrey A Law  (law@cygnus.com)
 193
 194         * interp.c: Fix sign bit handling for add and sub instructions.
 195
 196 Tue Sep  3 10:20:30 1996  Jeffrey A Law  (law@cygnus.com)
 197
 198         * gencode.c: Fix various indention & style problems.
 199         Remove test code.  Remove #if 0 code.
 200         * interp.c: Provide prototypes for all static functions.
 201         Fix minor indention problems.
 202         (sim_open, sim_resume): Remove unused variables.
 203         (sim_read): Return type is "int".
 204         * simops.c: Remove unused variables.
 205         (divh): Make result of divide-by-zero zero.
 206         (setf): Initialize result to keep compiler quiet.
 207         (sar instructions): These just clear the overflow bit.
 208         * v850_sim.h: Provide prototypes for put_byte, put_half
 209         and put_word.
 210
 211         * interp.c: OP should be an array of 32bit operands!
 212         (v850_callback): Declare.
 213         (do_format_5): Fix extraction of OP[0].
 214         (sim_size): Remove debugging printf.
 215         (sim_set_callbacks): Do something useful.
 216         (sim_stop_reason): Gross hacks to get c-torture running.
 217         * simops.c: Simplify code for computing targets of bCC
 218         insns.   Invert 's' bit if 'ov' bit is set for some
 219         instructions.  Fix 'cy' bit handling for numerous
 220         instructions.  Make the simulator stop when a halt
 221         instruction is encountered.  Very crude support for
 222         emulated syscalls (trap 0).
 223         * v850_sim.h: Include "callback.h" and declare
 224         v850_callback.  Items in the operand array are 32bits.
 225
 226 Sun Sep  1 22:35:35 1996  Jeffrey A Law  (law@cygnus.com)
 227
 228         * interp.c (sim_resume): Fix code to check for a format 3
 229         opcode.
 230         * simops.c: bCC insns only argument is a constant, not a
 231         register value (duh...)
 232
 233 Fri Aug 30 10:33:49 1996  Jeffrey A Law  (law@cygnus.com)
 234
 235         * simops.c: Fix "not1" and "set1".
 236
 237         * simops.c: Don't forget to initialize temp for
 238         "ld.h" and "ld.w"
 239
 240         * interp.c: Remove various debugging printfs.
 241
 242         * simops.c: Fix satadd, satsub boundary case handling.
 243
 244         * interp.c (hash): Fix.
 245         * interp.c (do_format_8): Get operands correctly and
 246         call the target function.
 247         * simops.c: Rough cut at "clr1", "not1", "set1", and "tst1".
 248
 249 Thu Aug 29 13:53:29 1996  Jeffrey A Law  (law@cygnus.com)
 250
 251         * interp.c (do_format_4): Get operands correctly and
 252         call the target function.
 253         * simops.c: Rough cut at "sld.b", "sld.h", "sld.w", "sst.b",
 254         "sst.h", and "sst.w".
 255
 256         * v850_sim.h: The V850 doesn't have split I&D spaces.  Change
 257         accordingly.  Remove many unused definitions.
 258         * interp.c: The V850 doesn't have split I&D spaces.  Change
 259         accordingly.
 260         (get_longlong, get_longword, get_word): Deleted.
 261         (write_longlong, write_longword, write_word): Deleted.
 262         (get_operands): Deleted.
 263         (get_byte, get_half, get_word): New functions.
 264         (put_byte, put_half, put_word): New functions.
 265         * simops.c: Remove unused functions.  Rough cut at
 266         "ld.b", "ld.h", "ld.w", "st.b", "st.h", "st.w" insns.
 267
 268         * v850_sim.h (struct _state): Remove "psw" field.  Add
 269         "sregs" field.
 270         (PSW): Remove bogus definition.
 271         * simops.c: Change condition code handling to use the psw
 272         register within the sregs array.  Handle "ldsr" and "stsr".
 273
 274         * simops.c: Handle "satadd", "satsub", "satsubi", "satsubr".
 275
 276         * interp.c (do_format_5): Get operands correctly and
 277         call the target function.
 278         (sim_resume): Don't do a PC update for format 5 instructions.
 279         * simops.c: Handle "jarl" and "jmp" instructions.
 280
 281         * simops.c: Fix minor typos.  Handle "cmp", "setf", "tst"
 282         "di", and "ei" instructions correctly.
 283
 284         * interp.c (do_format_3): Get operands correctly and call
 285         the target function.
 286         * simops.c: Handle bCC instructions.
 287
 288         * simops.c: Add condition code handling to shift insns.
 289         Fix minor typos in condition code handling for other insns.
 290
 291         * Makefile.in: Fix typo.
 292         * simops.c: Add condition code handling to "sub" "subr" and
 293         "divh" instructions.
 294
 295         * interp.c (hash): Update to be more accurate.
 296         (lookup_hash): Call hash rather than computing the hash
 297         code here.
 298         (do_format_1_2): Handle format 1 and format 2 instructions.
 299         Get operands correctly and call the target function.
 300         (do_format_6): Get operands correctly and call the target
 301         function.
 302         (do_formats_9_10): Rough cut so shift ops will work.
 303         (sim_resume): Tweak to deal with format 1 and format 2
 304         handling in a single funtion.  Don't update the PC
 305         for format 3 insns.  Fix typos.
 306         * simops.c: Slightly reorganize.  Add condition code handling
 307         to "add", "addi", "and", "andi", "or", "ori", "xor", "xori"
 308         and "not" instructions.
 309         * v850_sim.h (reg_t): Registers are 32bits.
 310         (_state): The V850 has 32 general registers.  Add a 32bit
 311         psw and pc register too.  Add accessor macros
 312
 313         * Makefile.in, interp.c, v850_sim.h: Bring over endianness
 314         changes from the d10v simulator.
 315
 316         * simops.c: Add shift support.
 317
 318         * simops.c: Add multiply & divide support.  Abort for system
 319         instructions.
 320
 321         * simops.c: Add logicals, mov, movhi, movea, add, addi, sub
 322         and subr.  No condition codes yet.
 323
 324 Wed Aug 28 13:53:22 1996  Jeffrey A Law  (law@cygnus.com)
 325
 326         * ChangeLog, Makefile.in, configure, configure.in, v850_sim.h,
 327         gencode.c, interp.c, simops.c: Created.
 328