sim/d10v/ChangeLog

   1 Wed Nov 20 19:41:40 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
   2
   3         * interp.c (sim_open): Cast result of calloc, and make sure NULL
   4         was not returned.
   5         (dmem_addr): If address is illegal or in I/O space, signal a bus
   6         error.
   7         (pc_addr): Signal bus error, not illegal instruction for bogus
   8         pc.
   9
  10 Wed Nov 20 01:23:03 1996  Doug Evans  <dje@canuck.cygnus.com>
  11
  12         * Makefile.in: Delete all stuff moved to ../common/Make-common.in.
  13         (SIM_OBJS,SIM_EXTRA_CFLAGS,SIM_EXTRA_CLEAN): Define.
  14         * configure.in: Simplify using macros in ../common/aclocal.m4.
  15         Call AC_CHECK_HEADERS(unistd.h).
  16         * configure: Regenerated.
  17         * config.in: New file.
  18         * interp.c: #include "callback.h".
  19         * simops.c: #include "config.h".  #include <unistd.h> if present.
  20
  21 Fri Nov  8 16:19:55 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
  22
  23         * d10v-sim.h (simops): Add flag is_long.
  24         (State): Add pc_changed.  Instructions which update the PC should
  25         use the JMP macro which sets this.
  26         (JMP): New macro.  Sets the PC and the pc_changed flag.
  27
  28         * gencode.c (write_opcodes): Add is_long field.
  29
  30         * interp.c (lookup_hash): If we blindly apply a short opcode's mask
  31         to a long opcode we could get a false match.  Check the opcode size.
  32         (hash): Add a size field to the hash table.
  33         (sim_open): Initialize size field in hash table.
  34         (sim_resume): Change to logic for setting the PC.  Used to increment the
  35         PC if it had not been changed.  This didn't allow single-instruction loops.
  36         Now checks the flag State.pc_changed.  Also now stops when ^C is received.
  37         (dmem_addr): Fix translation of data segments to unified memory.
  38         (sim_ctrl_c): New function.  When ^C is received, set stop_simulator flag.
  39
  40         * simops.c: Changed all branch and jump instructions to use new JMP macro.
  41         (OP_20000000): Corrected trace information to show this is a ldi.l, not
  42         a ldi.s instruction.
  43
  44 Thu Oct 31 19:13:55 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
  45
  46         * interp.c (sim_fetch_register, sim_store_register): Fix bug where
  47         updating the accumulators was overwriting other parts of the global
  48         State variable.
  49
  50 Wed Oct 30 17:35:14 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
  51
  52         * interp.c (bfd.h) Don't include it here any more.
  53         (text{,_start,_end}): Move here from simops.c and make extern.
  54         (decode_pc): New function to return the PC as an address that the
  55         debugger can use.
  56         (dmem_addr): Print decoded PC in error message.
  57         (pc_addr): Ditto.
  58
  59         * simops.c (bfd.h) Don't include it here any more.
  60         (text{,_start,_end}): Move to simops.c.
  61         (trace_input_func): Move decoding of PC, and looking up .text
  62         start to decode_pc.
  63
  64         * d10v_sim.h (bfd.h): Include it here.
  65         (text{,_start,_end}): Add external declarations.
  66         (exec_bfd): Ditto.
  67         (decode_pc): Ditto.
  68
  69 Tue Oct 29 12:13:52 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
  70
  71         * interp.c (sim_size): Now allocates unified memory for imap segments
  72         0,1,2, and 127. Initializes imap0 and imap1 to 0x1000.  Initializes dmap to 0.
  73         (sim_write): Just call xfer_mem().
  74         (sim_read): Just call xfer_mem().
  75         (xfer_mem): New function. Does appropriate memory mapping and copies bytes.
  76         (dmem_addr): New function. Reads dmap register and translates data
  77         addresses to local addresses.
  78         (pc_addr): New function. Reads imap register and computes local address
  79         corresponding to contents of the PC.
  80         (sim_resume): Change to use pc_addr().
  81         (sim_create_inferior): Change reinitialization code. Also reinitializes
  82         imap[01] and dmap.
  83         (sim_fetch_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
  84         (sim_store_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
  85
  86         * simops.c (MEMPTR): Redefine to use dmem_addr().
  87         (OP_5F00): Replace references to STate.imem with dmem_addr().
  88
  89         * d10v-sim.h (State): Remove mem_min and mem_max. Add umem[128].
  90         (RB,SW,RW,SLW,RLW): Redefine to use dmem_addr().
  91         (IMAP0,IMAP1,DMAP,SET_IMAP,SET_IMAP1,SET_DMAP): Define.
  92
  93 Tue Oct 22 15:22:33 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
  94
  95         * d10v_sim.h (_ins_type): Reorganize, so that we can provide
  96         better statistics, like not counting NOPS as parallel
  97         instructions, and printing total cycles.
  98         (ins_type_counters): Make unsigned long.
  99         (left_nops,right_nops): Fold into ins_type_counters.
 100
 101         * simops.c (trace_input_func): Print new instruction types.
 102         Handle OP_R2R3 as input types.
 103         (OP_{38000000,7000}): Correctly sign extend bytes.
 104         (OP_5E00): Don't count NOPs as parallel instructions.
 105         (OP_460B): Remove unused variable.
 106         (OP_5F00): Ditto.
 107
 108         * interp.c (ins_type_counters): Make unsigned long.
 109         (left_nops,right_nops): Delete.
 110         (most functions): Add prototypes.
 111         (INLINE): If GCC and optimize define as __inline__.
 112         ({,lookup_}hash,get_operands): Declare as INLINE.
 113         (do_parallel): Count conditional operations.
 114         (add_commas): New function, to add commas every 3 digits.
 115         (sim_size): Call add_commas to print numbers.
 116         (sim_{open,resume}): Delete unused variables.
 117         (sim_info): Provide better statistics.
 118         (sim_read): Add int return type.
 119
 120 Mon Oct 21 16:16:26 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 121
 122         * interp.c (sim_resume): Change the way single-stepping and exceptions
 123         are handled so single-stepping works again.
 124
 125 Thu Oct 17 12:24:16 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 126
 127         * endian.c: Optimize simulated loads/stores on x86, AIX, and big
 128         endian hosts.
 129
 130         * configure.in (--enable-sim-bswap): New switch to enable using
 131         the BSWAP instruction on x86's.
 132         * configure: Regenerate.
 133
 134         * Makefile.in ({SWAP,CONFIG}_CFLAGS): Add --enable-sim-bswap
 135         support.
 136
 137 Wed Oct 16 13:50:06 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 138
 139         * endian.c: New file.  Move endian functions here from interp.c.
 140         Optimize code, and make it work as either inline functions or as a
 141         separate file.
 142
 143         * interp.c: Move endian functions from here to endian.c.
 144
 145         * Makefile.in (INCLUDE): Add endian.c.
 146         (run,libsim.a): Add dependency on endian.o.
 147         (endian.o): Add dependency.
 148
 149         * d10v_sim.h (read/write support): Always go through the machine
 150         independent endian functions.  If compiling with GCC and
 151         optimizing, include endian.c so the endian functions are inlined.
 152
 153         * simops.c (OP_5F00): Correct tracing of accumulators.
 154
 155 Tue Oct 15 10:57:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 156
 157         * simops.c (OP_5F00): Add support for getpid, kill system calls.
 158
 159         * interp.c (do_{2_short,parallel}): If an exception is raised,
 160         don't execute the second instruction.
 161
 162 Sat Oct 12 22:17:43 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 163
 164         * simops.c (OP_{31000000,6601,6201,6200}): Store address in a
 165         temporary in case the register is overriden when loading.
 166         (OP_6200): Output type is OP_DREG for tracing.
 167
 168 Fri Oct  4 23:46:18 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 169
 170         * d10v_sim.h (struct _state): Add mem_{min,max} fields.
 171
 172         * interp.c (sim_size): Initialize mem_{min,max} fields.
 173         (sim_write): Update mem_{min,max} fields.
 174         (sim_resume): If PC is not in the minimum/maximum memory range,
 175         abort.
 176         (sim_create_inferior): Preserve mem_{min,max} fields.
 177
 178 Fri Sep 27 13:11:58 1996  Mark Alexander  <marka@cygnus.com>
 179
 180         * simops.c (OP_5F00): Add support for time() system call.
 181
 182 Wed Sep 25 16:31:41 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 183
 184         * simops.c (OP_{6E01,6A01,6E1F,6A00}): Print both words being
 185         stored if tracing.
 186         (OP_5F00,trace_{in,out}put_func): Add finer grain tracing for
 187         system calls.
 188
 189 Mon Sep 23 17:55:30 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 190
 191         * simops.c (op_types): Add OP_{CONSTANT8,R2,R3}.
 192         (trace_input_func): Add support for  OP_{CONSTANT8,R2,R3}.
 193         (OP_{4900,24800000,4800,4A00,4B00,4D00,4C00}): Add OP_R2 and OP_R3
 194         to call/subroutine returns to trace the first two arguments and
 195         the return value.  For small jumps, use CONSTANT8, not CONSTANT16.
 196
 197 Fri Sep 20 15:36:45 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 198
 199         * interp.c (sim_create_inferior): Reinitialize State every time
 200         sim_create_inferior() is called.
 201
 202 Thu Sep 19 21:38:20 1996  Michael Meissner  <meissner@wogglebug.ziplink.net>
 203
 204         * simops.c (OP_{401,2000000,601,3000000,23000000}): Get sign right
 205         on comparisons.
 206         (OP_401): Fix tracing information.
 207
 208 Thu Sep 19 10:30:22 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 209
 210         * simops.c (SIZE_{PC,LINE_NUMBER}): New default sizes for output.
 211         (trace_input_func): Use them.
 212         (trace_input_func): Make sure there is a trailing space after the
 213         instruction.
 214         (OP_6200): Fix tracing info.
 215
 216         * Makefile.in (run): Add dependencies on libbfd.a and
 217         libiberity.a.
 218
 219 Wed Sep 18 09:13:25 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 220
 221         * d10v_sim.h (DEBUG_INSTRUCTION): New debug value to include line
 222         numbers and function names in debug trace.
 223         (DEBUG): If not defined, set to DEBUG_TRACE, DEBUG_VALUES, and
 224         DEBUG_LINE_NUMBER.
 225         (SIG_D10V_{STOP,EXIT}): Values to represent the stop instruction
 226         and exit system call trap being executed.
 227
 228         * interp.c (sim_stop_reason): Set exit code correctly for stop
 229         instruction and exit system call trap.
 230
 231         * configure.in (--enable-sim-cflags): Remove trace case.
 232         (--enable-sim-debug): New switch to set the debug values.
 233         * configure: Regenerate.
 234
 235         * simops.c (trace_{input,output}_func): Rename from
 236         trace_{input,output}.
 237         (trace_{input,output}): Call trace_{input,output}_func if
 238         d10v_debug is non-zero.
 239         (SIZE_INSTRUCTION): Cut down to 8.
 240         (SIZE_OPERANDS): Cut down to 18.
 241         (SIZE_LOCATION): New value for size of line number, function name
 242         field.
 243         (init_text_p,text{,_start,_end}): New static variables for
 244         printing line number and function name.
 245         (exec_bfd): New external that run.c sets.
 246         (trace_input_func): Print line number and function name if
 247         available and if desired.
 248         (OP_4E09): Don't print out DBT message.
 249         (OP_5FE0): Set exception field to SIG_D10V_STOP.
 250         (OP_5F00): Set exception field to SIG_D10V_EXIT.
 251
 252 Sat Sep 14 22:18:43 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 253
 254         * interp.c (do_2_short): If the instruction encodes jump->ins,
 255         don't do the second instruction if the jump succeeds.
 256
 257 Fri Sep 13 22:35:19 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 258
 259         * simops.c (OP_5F00): Use unknown traps to print all GPRs,
 260         accumulators, PC, and F0/F1/C flags.
 261
 262 Thu Sep 12 12:50:11 1996  Mark Alexander  <marka@cygnus.com>
 263
 264         * simops.c (OP_5F00): Fix problems with system calls.
 265
 266 Thu Sep 12 12:19:28 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 267
 268         * simops.c (OP_5F00): Correct tracing information for trap.
 269
 270 Wed Sep 11 18:55:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 271
 272         * Makefile.in (CSEARCH): Correctly find opcodes directory.
 273
 274 Mon Sep  9 13:27:26 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 275
 276         * simops.c (trace_output): Properly align accumulator output.
 277         (OP_3{0,2,4}00): Properly parenthesize test expression.  Add error
 278         if shift count is too high.
 279         (OP_4E{00,02,04,20,22,40,42}): Make tests agree with book.
 280         (OP_4E09): Make cpfg properly trace the input flags.
 281         (op_types): Add OP_FLAG_OUTPUT.
 282         (trace_{input,output}): Support OP_FLAG_OUTPUT.
 283         (OP_31000000): This ld2w varient is a 16-bit memory reference, not
 284         an 8-bit memory reference instruction for tracing purposes.
 285         (OP_201): Addi needs to set the carry.
 286
 287 Fri Sep  6 17:56:17 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 288
 289         * simops.c (OP_2600, OP_2601): Changed min and max comparisons
 290         to use signed register values.
 291
 292 Wed Sep  4 11:35:17 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 293
 294         * d10v_sim.h (DEBUG_*): Add bit flags for controlling debug
 295         output.
 296         (_ins_type): New enumeration to specify which container an
 297         instruction is in, and whether it is part of a parallel operation.
 298         (_state): Add ins_type field.
 299         ({,u}int{8,16,32,64}): Use limits.h to size the appropriate types.
 300         (ins_type_counters): Counters for the various instruction types.
 301         ({left,right}_nops): Counters for the number of nops in each
 302         container.
 303         (d10v_debug): New variable to indicate whether debugging is turned
 304         on.
 305
 306         * simops.c: (all functions): Change all #ifdef DEBUG code so that
 307         the input and output values can be traced, along with the
 308         instruction type.  Make the -t option enable tracing.
 309         (all functions): Change printf calls to use the printf_filtered
 310         function in the callback table.
 311
 312         * interp.c (_leftright): New enumeration to say whether 2 short
 313         instructions are done left first or right first.
 314         (do_{long,2_short,parallel}): Indicate in the machine state which
 315         type of instruction this is.  Count each of the types of
 316         instructions executed.
 317         (sim_size): Only print the memory sizes if DEBUG_MEMSIZE debug
 318         flag is set.
 319         (sim_resume): Pass left/right indication to do_2_short.
 320         (all functions): Change printf calls to use the printf_filtered
 321         function in the callback table.
 322         (sim_trace): Turn on debug flag if DEBUG was defined, and call
 323         sim_resume.
 324         (sim_info): Print out statistics on instructions.
 325         (sim_{trace,create_inferior}): Eliminate extraneous output unless
 326         debugging.
 327         (sim_open): If args == -t and DEBUG was defined, set d10v_debug.
 328         Only initialize the hash table the first time sim_open is called.
 329
 330         * Makefile.in: Make objects depend on d10v_sim.h.
 331         ({,SIM_}CFLAGS): Include configure dependent switches.  Setting
 332         CFLAGS does not override host/target defines or SIM_CFLAGS.
 333         (CC_FOR_BUILD,gencode): Use CC_FOR_BUILD to compile gencode.
 334         (run): By default, the math library is not needed to be linked
 335         in.
 336         ({BFD,LIBIBERTY}_LIB): Define as variables so they can be
 337         overridden.
 338         (VPATH): Don't set to anything but @srcdir@ to work with non-GNU
 339         makes.
 340         ({run,callback}.o): Provide explicit paths to their appropriate
 341         source directories.
 342         (gencode{,.o},d10v-opc.o): Split compilation into creating object
 343         and linking.  Instead of linking in libopcodes.a, just compile
 344         d10v-opc.o directly to handle canadian cross.
 345         (CSEARCH): Add opcodes directory.
 346
 347         * configure.in (--enable-sim-cflags): New switch to allow user to
 348         set the defaults.
 349         (CC_FOR_BUILD): Deal with canadian crosses.
 350         * configure: Regenerate.
 351
 352 Wed Sep 04 04:45:34 1996  Mark Alexander  <marka@cygnus.com>
 353
 354         * simops.c: Include correct syscall.h for d10v, not host's.
 355         Fix #ifdef SYS_stat.
 356
 357 Tue Sep  3 14:00:04 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
 358
 359         * simops.c (OP_5F00): Wrap all SYS_xxx traps with #ifdef.
 360         Add trap 2 to be printf and trap 3 to be putchar.
 361
 362 Wed Aug 28 21:42:34 1996  Mark Alexander  <marka@cygnus.com>
 363
 364         * Makefile.in, d10v_sim.h, interp.c, simops.c: Add support
 365         for low-level system calls.
 366
 367 Wed Aug 28 17:33:19 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 368
 369         * Makefile.in, d10v_sim.h, interp.c: Fix byte-order problems.
 370
 371 Mon Aug 26 18:30:28 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 372
 373         * d10v_sim.h (SEXT32): Added.
 374         * interp.c: Commented out printfs.
 375         * simops.c:  Fixed error in sb and st2w.
 376
 377 Thu Aug 15 13:30:03 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 378
 379         * Makefile.in, d10v_sim.h, interp.c, simops.c: Added remaining
 380         DSP instructions.  Added modulo addressing.
 381
 382 Sun Aug 11 12:57:15 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 383
 384         * Makefile.in, d10v_sim.h, interp.c, simops.c: Snapshot.
 385
 386 Fri Aug  2 17:44:24 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 387
 388         * d10v_sim.h, simops.c: Snapshot.
 389
 390 Thu Aug  1 17:05:24 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
 391
 392         * ChangeLog, Makefile.in, configure, configure.in, d10v_sim.h,
 393         gencode.c, interp.c, simops.c: Created.
 394