sim/mips/ChangeLog

   1 Thu Dec 19 14:07:27 1996  Ian Lance Taylor  <ian@cygnus.com>
   2
   3         * gencode.c (build_instruction) [MUL]: Cast operands to word64, to
   4         force a 64 bit multiplication.
   5         (build_instruction) [OR]: In mips16 mode, don't do anything if the
   6         destination register is 0, since that is the default mips16 nop
   7         instruction.
   8
   9 Mon Dec 16 14:59:38 1996  Ian Lance Taylor  <ian@cygnus.com>
  10
  11         * gencode.c (MIPS16_DECODE): SWRASP is I8, not RI.
  12         (build_endian_shift): Don't check proc64.
  13         (build_instruction): Always set memval to uword64.  Cast op2 to
  14         uword64 when shifting it left in memory instructions.  Always use
  15         the same code for stores--don't special case proc64.
  16
  17         * gencode.c (build_mips16_operands): Fix base PC value for PC
  18         relative operands.
  19         (build_instruction): Call JALDELAYSLOT rather than DELAYSLOT for a
  20         jal instruction.
  21         * interp.c (simJALDELAYSLOT): Define.
  22         (JALDELAYSLOT): Define.
  23         (INDELAYSLOT, INJALDELAYSLOT): Define.
  24         (simulate): Clear simJALDELAYSLOT when simDELAYSLOT is cleared.
  25
  26 Wed Dec 11 13:53:51 1996  Jim Wilson  <wilson@cygnus.com>
  27
  28         * gencode.c (build_instruction): Use !ByteSwapMem instead of
  29         BigEndianMem.
  30         * interp.c (CONFIG, config_EP_{mask,shift,D,DxxDxx, config_BE): Delete.
  31         (BigEndianMem): Rename to ByteSwapMem and change sense.
  32         (BigEndianCPU, sim_write, LoadMemory, StoreMemory): Change
  33         BigEndianMem references to !ByteSwapMem.
  34         (set_endianness): New function, with prototype.
  35         (sim_open): Call set_endianness.
  36         (sim_info): Use simBE instead of BigEndianMem.
  37         (xfer_direct_word, xfer_direct_long, swap_direct_word,
  38         swap_direct_long, xfer_big_word, xfer_big_long, xfer_little_word,
  39         xfer_little_long, swap_word, swap_long): Delete unnecessary MSC_VER
  40         ifdefs, keeping the prototype declaration.
  41         (swap_word): Rewrite correctly.
  42         (ColdReset): Delete references to CONFIG.  Delete endianness related
  43         code; moved to set_endianness.
  44
  45 Tue Dec 10 11:32:04 1996  Jim Wilson  <wilson@cygnus.com>
  46
  47         * gencode.c (build_instruction, case JUMP): Truncate PC to 32 bits.
  48         * interp.c (CHECKHILO): Define away.
  49         (simSIGINT): New macro.
  50         (membank_size): Increase from 1MB to 2MB.
  51         (control_c): New function.
  52         (sim_resume): Rename parameter signal to signal_number.  Add local
  53         variable prev.  Call signal before and after simulate.
  54         (sim_stop_reason): Add simSIGINT support.
  55         (sim_warning, sim_error, dotrace, SignalException): Define as stdarg
  56         functions always.
  57         (sim_warning): Delete call to SignalException.  Do call printf_filtered
  58         if logfh is NULL.
  59         (AddressTranslation): Add #ifdef DEBUG around debugging message and
  60         a call to sim_warning.
  61
  62 Wed Nov 27 11:53:50 1996  Ian Lance Taylor  <ian@cygnus.com>
  63
  64         * gencode.c (process_instructions): If ! proc64, skip DOUBLEWORD
  65         16 bit instructions.
  66
  67 Tue Nov 26 11:53:12 1996  Ian Lance Taylor  <ian@cygnus.com>
  68
  69         Add support for mips16 (16 bit MIPS implementation):
  70         * gencode.c (inst_type): Add mips16 instruction encoding types.
  71         (GETDATASIZEINSN): Define.
  72         (MIPS_DECODE): Add REG flag to dsllv, dsrav, and dsrlv.  Add
  73         jalx.  Add LEFT flag to mfhi and mflo.  Add RIGHT flag to mthi and
  74         mtlo.
  75         (MIPS16_DECODE): New table, for mips16 instructions.
  76         (bitmap_val): New static function.
  77         (struct mips16_op): Define.
  78         (mips16_op_table): New table, for mips16 operands.
  79         (build_mips16_operands): New static function.
  80         (process_instructions): If PC is odd, decode a mips16
  81         instruction.  Break out instruction handling into new
  82         build_instruction function.
  83         (build_instruction): New static function, broken out of
  84         process_instructions.  Check modifiers rather than flags for SHIFT
  85         bit count and m[ft]{hi,lo} direction.
  86         (usage): Pass program name to fprintf.
  87         (main): Remove unused variable this_option_optind.  Change
  88         ``*loptarg++'' to ``loptarg++''.
  89         (my_strtoul): Parenthesize && within ||.
  90         * interp.c (LoadMemory): Accept a halfword pAddr if vAddr is odd.
  91         (simulate): If PC is odd, fetch a 16 bit instruction, and
  92         increment PC by 2 rather than 4.
  93         * configure.in: Add case for mips16*-*-*.
  94         * configure: Rebuild.
  95
  96 Fri Nov 22 08:49:36 1996  Mark Alexander  <marka@cygnus.com>
  97
  98         * interp.c: Allow -t to enable tracing in standalone simulator.
  99         Fix garbage output in trace file and error messages.
 100
 101 Wed Nov 20 01:54:37 1996  Doug Evans  <dje@canuck.cygnus.com>
 102
 103         * Makefile.in: Delete stuff moved to ../common/Make-common.in.
 104         (SIM_{OBJS,EXTRA_CFLAGS,EXTRA_CLEAN}): Define.
 105         * configure.in: Simplify using macros in ../common/aclocal.m4.
 106         * configure: Regenerated.
 107         * tconfig.in: New file.
 108
 109 Tue Nov 12 13:34:00 1996  Dawn Perchik  <dawn@cygnus.com>
 110
 111         * interp.c: Fix bugs in 64-bit port.
 112         Use ansi function declarations for msvc compiler.
 113         Initialize and test file pointer in trace code.
 114         Prevent duplicate definition of LAST_EMED_REGNUM.
 115
 116 Tue Oct 15 11:07:06 1996  Mark Alexander  <marka@cygnus.com>
 117
 118         * interp.c (xfer_big_long): Prevent unwanted sign extension.
 119
 120 Thu Sep 26 17:35:00 1996  James G. Smith  <jsmith@cygnus.co.uk>
 121
 122         * interp.c (SignalException): Check for explicit terminating
 123         breakpoint value.
 124         * gencode.c: Pass instruction value through SignalException()
 125         calls for Trap, Breakpoint and Syscall.
 126
 127 Thu Sep 26 11:35:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 128
 129         * interp.c (SquareRoot): Add HAVE_SQRT check to ensure sqrt() is
 130         only used on those hosts that provide it.
 131         * configure.in: Add sqrt() to list of functions to be checked for.
 132         * config.in: Re-generated.
 133         * configure: Re-generated.
 134
 135 Fri Sep 20 15:47:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 136
 137         * gencode.c (process_instructions): Call build_endian_shift when
 138         expanding STORE RIGHT, to fix swr.
 139         * support.h (SIGNEXTEND): If the sign bit is not set, explicitly
 140         clear the high bits.
 141         * interp.c (Convert): Fix fmt_single to fmt_long to not truncate.
 142         Fix float to int conversions to produce signed values.
 143
 144 Thu Sep 19 15:34:17 1996  Ian Lance Taylor  <ian@cygnus.com>
 145
 146         * gencode.c (MIPS_DECODE): Set UNSIGNED for multu instruction.
 147         (process_instructions): Correct handling of nor instruction.
 148         Correct shift count for 32 bit shift instructions. Correct sign
 149         extension for arithmetic shifts to not shift the number of bits in
 150         the type.  Fix 64 bit multiply high word calculation.  Fix 32 bit
 151         unsigned multiply.  Fix ldxc1 and friends to use coprocessor 1.
 152         Fix madd.
 153         * interp.c (CHECKHILO): Don't set HIACCESS, LOACCESS, or HLPC.
 154         It's OK to have a mult follow a mult.  What's not OK is to have a
 155         mult follow an mfhi.
 156         (Convert): Comment out incorrect rounding code.
 157
 158 Mon Sep 16 11:38:16 1996  James G. Smith  <jsmith@cygnus.co.uk>
 159
 160         * interp.c (sim_monitor): Improved monitor printf
 161         simulation. Tidied up simulator warnings, and added "--log" option
 162         for directing warning message output.
 163         * gencode.c: Use sim_warning() rather than WARNING macro.
 164
 165 Thu Aug 22 15:03:12 1996  Ian Lance Taylor  <ian@cygnus.com>
 166
 167         * Makefile.in (gencode): Depend upon gencode.o, getopt.o, and
 168         getopt1.o, rather than on gencode.c.  Link objects together.
 169         Don't link against -liberty.
 170         (gencode.o, getopt.o, getopt1.o): New targets.
 171         * gencode.c: Include <ctype.h> and "ansidecl.h".
 172         (AND): Undefine after including "ansidecl.h".
 173         (ULONG_MAX): Define if not defined.
 174         (OP_*): Don't define macros; now defined in opcode/mips.h.
 175         (main): Call my_strtoul rather than strtoul.
 176         (my_strtoul): New static function.
 177
 178 Wed Jul 17 18:12:38 1996  Stu Grossman  (grossman@critters.cygnus.com)
 179
 180         * gencode.c (process_instructions):  Generate word64 and uword64
 181         instead of `long long' and `unsigned long long' data types.
 182         * interp.c:  #include sysdep.h to get signals, and define default
 183         for SIGBUS.
 184         * (Convert):  Work around for Visual-C++ compiler bug with type
 185         conversion.
 186         * support.h:  Make things compile under Visual-C++ by using
 187         __int64 instead of `long long'.  Change many refs to long long
 188         into word64/uword64 typedefs.
 189
 190 Wed Jun 26 12:24:55 1996  Jason Molenda  (crash@godzilla.cygnus.co.jp)
 191
 192         * Makefile.in (bindir, libdir, datadir, mandir, infodir, includedir,
 193         INSTALL_PROGRAM, INSTALL_DATA): Use autoconf-set values.
 194         (docdir): Removed.
 195         * configure.in (AC_PREREQ): autoconf 2.5 or higher.
 196         (AC_PROG_INSTALL): Added.
 197         (AC_PROG_CC): Moved to before configure.host call.
 198         * configure: Rebuilt.
 199
 200 Wed Jun  5 08:28:13 1996  James G. Smith  <jsmith@cygnus.co.uk>
 201
 202         * configure.in: Define @SIMCONF@ depending on mips target.
 203         * configure: Rebuild.
 204         * Makefile.in (run): Add @SIMCONF@ to control simulator
 205         construction.
 206         * gencode.c: Change LOADDRMASK to 64bit memory model only.
 207         * interp.c: Remove some debugging, provide more detailed error
 208         messages, update memory accesses to use LOADDRMASK.
 209
 210 Mon Jun  3 11:55:03 1996  Ian Lance Taylor  <ian@cygnus.com>
 211
 212         * configure.in: Add calls to AC_CONFIG_HEADER, AC_CHECK_HEADERS,
 213         AC_CHECK_LIB, and AC_CHECK_FUNCS.  Change AC_OUTPUT to set
 214         stamp-h.
 215         * configure: Rebuild.
 216         * config.in: New file, generated by autoheader.
 217         * interp.c: Include "config.h".  Include <stdlib.h>, <string.h>,
 218         and <strings.h> if they exist.  Replace #ifdef sun with #ifdef
 219         HAVE_ANINT and HAVE_AINT, as appropriate.
 220         * Makefile.in (run): Use @LIBS@ rather than -lm.
 221         (interp.o): Depend upon config.h.
 222         (Makefile): Just rebuild Makefile.
 223         (clean): Remove stamp-h.
 224         (mostlyclean): Make the same as clean, not as distclean.
 225         (config.h, stamp-h): New targets.
 226
 227 Fri May 10 00:41:17 1996  James G. Smith  <jsmith@cygnus.co.uk>
 228
 229         * interp.c (ColdReset): Fix boolean test. Make all simulator
 230         globals static.
 231
 232 Wed May  8 15:12:58 1996  James G. Smith  <jsmith@cygnus.co.uk>
 233
 234         * interp.c (xfer_direct_word, xfer_direct_long,
 235         swap_direct_word, swap_direct_long, xfer_big_word,
 236         xfer_big_long, xfer_little_word, xfer_little_long,
 237         swap_word,swap_long): Added.
 238         * interp.c (ColdReset): Provide function indirection to
 239         host<->simulated_target transfer routines.
 240         * interp.c (sim_store_register, sim_fetch_register): Updated to
 241         make use of indirected transfer routines.
 242
 243 Fri Apr 19 15:48:24 1996  James G. Smith  <jsmith@cygnus.co.uk>
 244
 245         * gencode.c (process_instructions): Ensure FP ABS instruction
 246         recognised.
 247         * interp.c (AbsoluteValue): Add routine. Also provide simple PMON
 248         system call support.
 249
 250 Wed Apr 10 09:51:38 1996  James G. Smith  <jsmith@cygnus.co.uk>
 251
 252         * interp.c (sim_do_command): Complain if callback structure not
 253         initialised.
 254
 255 Thu Mar 28 13:50:51 1996  James G. Smith  <jsmith@cygnus.co.uk>
 256
 257         * interp.c (Convert): Provide round-to-nearest and round-to-zero
 258         support for Sun hosts.
 259         * Makefile.in (gencode): Ensure the host compiler and libraries
 260         used for cross-hosted build.
 261
 262 Wed Mar 27 14:42:12 1996  James G. Smith  <jsmith@cygnus.co.uk>
 263
 264         * interp.c, gencode.c: Some more (TODO) tidying.
 265
 266 Thu Mar  7 11:19:33 1996  James G. Smith  <jsmith@cygnus.co.uk>
 267
 268         * gencode.c, interp.c: Replaced explicit long long references with
 269         WORD64HI, WORD64LO, SET64HI and SET64LO macro calls.
 270         * support.h (SET64LO, SET64HI): Macros added.
 271
 272 Wed Feb 21 12:16:21 1996  Ian Lance Taylor  <ian@cygnus.com>
 273
 274         * configure: Regenerate with autoconf 2.7.
 275
 276 Tue Jan 30 08:48:18 1996  Fred Fish  <fnf@cygnus.com>
 277
 278         * interp.c (LoadMemory): Enclose text following #endif in /* */.
 279         * support.h: Remove superfluous "1" from #if.
 280         * support.h (CHECKSIM): Remove stray 'a' at end of line.
 281
 282 Mon Dec  4 11:44:40 1995  Jamie Smith  <jsmith@cygnus.com>
 283
 284         * interp.c (StoreFPR): Control UndefinedResult() call on
 285         WARN_RESULT manifest.
 286
 287 Fri Dec  1 16:37:19 1995  James G. Smith  <jsmith@cygnus.co.uk>
 288
 289         * gencode.c: Tidied instruction decoding, and added FP instruction
 290         support.
 291
 292         * interp.c: Added dineroIII, and BSD profiling support. Also
 293         run-time FP handling.
 294
 295 Sun Oct 22 00:57:18 1995  James G. Smith  <jsmith@pasanda.cygnus.co.uk>
 296
 297         * Changelog, Makefile.in, README.Cygnus, configure, configure.in,
 298         gencode.c, interp.c, support.h: created.