1 Thu Mar 13 10:29:04 1997 Michael Meissner <meissner@cygnus.com>
3 * simops.c (trace_{input,output}_func): Call flush_stdout from the
6 (OP_6{4,6,C,A}01): Test for post decrement on the stack pointer.
7 (OP_{1200,1000000,201,5FE0,1003,17001002}): Fix problems in
8 setting the carry bit after an add or a subtract.
10 Wed Feb 12 16:04:15 1997 Michael Meissner <meissner@cygnus.com>
12 * simops.c (OP_{1403,15002A02,3{0,4}0{0,1}}): Only use the bottom
13 40 bits of accumulators. Sign/zero extend as appropriate.
15 Tue Feb 4 13:33:30 1997 Doug Evans <dje@canuck.cygnus.com>
17 * Makefile.in (@COMMON_MAKEFILE_FRAG): Use
18 COMMON_{PRE,POST}_CONFIG_FRAG instead.
19 * configure.in: sinclude ../common/aclocal.m4.
20 * configure: Regenerated.
22 Thu Jan 23 11:46:23 1997 Stu Grossman (grossman@critters.cygnus.com)
24 * configure configure.in Makefile.in: Update to new configure
25 scheme which is more compatible with WinGDB builds.
26 * configure.in: Improve comment on how to run autoconf.
27 * configure: Re-run autoconf to get new ../common/aclocal.m4.
28 * Makefile.in: Use autoconf substitution to install common
31 Fri Dec 27 22:54:05 1996 Angela Marie Thomas (angela@cygnus.com)
33 * gencode.c: patch to not #include "d10v_sim.h" which
34 unecessarily includes bfd.h and causes wingdb configure
37 Mon Dec 16 13:39:03 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
39 * interp.c (xfer_mem): Change unified memory to 0x0.
41 Thu Nov 28 20:42:56 1996 Michael Meissner <meissner@tiktok.cygnus.com>
43 * simops.c (OP_3E01): Fix tracing information.
44 (OP_300{0,1}): Do not propigate sign.
46 Mon Nov 25 19:47:40 1996 Doug Evans <dje@canuck.cygnus.com>
48 * config.in (WORDS_BIGENDIAN): Add.
49 * configure: Regenerated.
50 * d10v_sim.h: #include "config.h"
52 Sat Nov 23 09:34:50 1996 Michael Meissner <meissner@tiktok.cygnus.com>
54 * gencode.c (write_opcodes): Eliminate warnings when generated
57 Wed Nov 20 19:41:40 1996 Michael Meissner <meissner@tiktok.cygnus.com>
59 * interp.c (sim_open): Cast result of calloc, and make sure NULL
61 (dmem_addr): If address is illegal or in I/O space, signal a bus
63 (pc_addr): Signal bus error, not illegal instruction for bogus
66 Wed Nov 20 01:23:03 1996 Doug Evans <dje@canuck.cygnus.com>
68 * Makefile.in: Delete all stuff moved to ../common/Make-common.in.
69 (SIM_OBJS,SIM_EXTRA_CFLAGS,SIM_EXTRA_CLEAN): Define.
70 * configure.in: Simplify using macros in ../common/aclocal.m4.
71 Call AC_CHECK_HEADERS(unistd.h).
72 * configure: Regenerated.
73 * config.in: New file.
74 * interp.c: #include "callback.h".
75 * simops.c: #include "config.h". #include <unistd.h> if present.
77 Fri Nov 8 16:19:55 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
79 * d10v-sim.h (simops): Add flag is_long.
80 (State): Add pc_changed. Instructions which update the PC should
81 use the JMP macro which sets this.
82 (JMP): New macro. Sets the PC and the pc_changed flag.
84 * gencode.c (write_opcodes): Add is_long field.
86 * interp.c (lookup_hash): If we blindly apply a short opcode's mask
87 to a long opcode we could get a false match. Check the opcode size.
88 (hash): Add a size field to the hash table.
89 (sim_open): Initialize size field in hash table.
90 (sim_resume): Change to logic for setting the PC. Used to increment the
91 PC if it had not been changed. This didn't allow single-instruction loops.
92 Now checks the flag State.pc_changed. Also now stops when ^C is received.
93 (dmem_addr): Fix translation of data segments to unified memory.
94 (sim_ctrl_c): New function. When ^C is received, set stop_simulator flag.
96 * simops.c: Changed all branch and jump instructions to use new JMP macro.
97 (OP_20000000): Corrected trace information to show this is a ldi.l, not
100 Thu Oct 31 19:13:55 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
102 * interp.c (sim_fetch_register, sim_store_register): Fix bug where
103 updating the accumulators was overwriting other parts of the global
106 Wed Oct 30 17:35:14 1996 Michael Meissner <meissner@tiktok.cygnus.com>
108 * interp.c (bfd.h) Don't include it here any more.
109 (text{,_start,_end}): Move here from simops.c and make extern.
110 (decode_pc): New function to return the PC as an address that the
112 (dmem_addr): Print decoded PC in error message.
115 * simops.c (bfd.h) Don't include it here any more.
116 (text{,_start,_end}): Move to simops.c.
117 (trace_input_func): Move decoding of PC, and looking up .text
120 * d10v_sim.h (bfd.h): Include it here.
121 (text{,_start,_end}): Add external declarations.
125 Tue Oct 29 12:13:52 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
127 * interp.c (sim_size): Now allocates unified memory for imap segments
128 0,1,2, and 127. Initializes imap0 and imap1 to 0x1000. Initializes dmap to 0.
129 (sim_write): Just call xfer_mem().
130 (sim_read): Just call xfer_mem().
131 (xfer_mem): New function. Does appropriate memory mapping and copies bytes.
132 (dmem_addr): New function. Reads dmap register and translates data
133 addresses to local addresses.
134 (pc_addr): New function. Reads imap register and computes local address
135 corresponding to contents of the PC.
136 (sim_resume): Change to use pc_addr().
137 (sim_create_inferior): Change reinitialization code. Also reinitializes
139 (sim_fetch_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
140 (sim_store_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
142 * simops.c (MEMPTR): Redefine to use dmem_addr().
143 (OP_5F00): Replace references to STate.imem with dmem_addr().
145 * d10v-sim.h (State): Remove mem_min and mem_max. Add umem[128].
146 (RB,SW,RW,SLW,RLW): Redefine to use dmem_addr().
147 (IMAP0,IMAP1,DMAP,SET_IMAP,SET_IMAP1,SET_DMAP): Define.
149 Tue Oct 22 15:22:33 1996 Michael Meissner <meissner@tiktok.cygnus.com>
151 * d10v_sim.h (_ins_type): Reorganize, so that we can provide
152 better statistics, like not counting NOPS as parallel
153 instructions, and printing total cycles.
154 (ins_type_counters): Make unsigned long.
155 (left_nops,right_nops): Fold into ins_type_counters.
157 * simops.c (trace_input_func): Print new instruction types.
158 Handle OP_R2R3 as input types.
159 (OP_{38000000,7000}): Correctly sign extend bytes.
160 (OP_5E00): Don't count NOPs as parallel instructions.
161 (OP_460B): Remove unused variable.
164 * interp.c (ins_type_counters): Make unsigned long.
165 (left_nops,right_nops): Delete.
166 (most functions): Add prototypes.
167 (INLINE): If GCC and optimize define as __inline__.
168 ({,lookup_}hash,get_operands): Declare as INLINE.
169 (do_parallel): Count conditional operations.
170 (add_commas): New function, to add commas every 3 digits.
171 (sim_size): Call add_commas to print numbers.
172 (sim_{open,resume}): Delete unused variables.
173 (sim_info): Provide better statistics.
174 (sim_read): Add int return type.
176 Mon Oct 21 16:16:26 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
178 * interp.c (sim_resume): Change the way single-stepping and exceptions
179 are handled so single-stepping works again.
181 Thu Oct 17 12:24:16 1996 Michael Meissner <meissner@tiktok.cygnus.com>
183 * endian.c: Optimize simulated loads/stores on x86, AIX, and big
186 * configure.in (--enable-sim-bswap): New switch to enable using
187 the BSWAP instruction on x86's.
188 * configure: Regenerate.
190 * Makefile.in ({SWAP,CONFIG}_CFLAGS): Add --enable-sim-bswap
193 Wed Oct 16 13:50:06 1996 Michael Meissner <meissner@tiktok.cygnus.com>
195 * endian.c: New file. Move endian functions here from interp.c.
196 Optimize code, and make it work as either inline functions or as a
199 * interp.c: Move endian functions from here to endian.c.
201 * Makefile.in (INCLUDE): Add endian.c.
202 (run,libsim.a): Add dependency on endian.o.
203 (endian.o): Add dependency.
205 * d10v_sim.h (read/write support): Always go through the machine
206 independent endian functions. If compiling with GCC and
207 optimizing, include endian.c so the endian functions are inlined.
209 * simops.c (OP_5F00): Correct tracing of accumulators.
211 Tue Oct 15 10:57:50 1996 Michael Meissner <meissner@tiktok.cygnus.com>
213 * simops.c (OP_5F00): Add support for getpid, kill system calls.
215 * interp.c (do_{2_short,parallel}): If an exception is raised,
216 don't execute the second instruction.
218 Sat Oct 12 22:17:43 1996 Michael Meissner <meissner@tiktok.cygnus.com>
220 * simops.c (OP_{31000000,6601,6201,6200}): Store address in a
221 temporary in case the register is overriden when loading.
222 (OP_6200): Output type is OP_DREG for tracing.
224 Fri Oct 4 23:46:18 1996 Michael Meissner <meissner@tiktok.cygnus.com>
226 * d10v_sim.h (struct _state): Add mem_{min,max} fields.
228 * interp.c (sim_size): Initialize mem_{min,max} fields.
229 (sim_write): Update mem_{min,max} fields.
230 (sim_resume): If PC is not in the minimum/maximum memory range,
232 (sim_create_inferior): Preserve mem_{min,max} fields.
234 Fri Sep 27 13:11:58 1996 Mark Alexander <marka@cygnus.com>
236 * simops.c (OP_5F00): Add support for time() system call.
238 Wed Sep 25 16:31:41 1996 Michael Meissner <meissner@tiktok.cygnus.com>
240 * simops.c (OP_{6E01,6A01,6E1F,6A00}): Print both words being
242 (OP_5F00,trace_{in,out}put_func): Add finer grain tracing for
245 Mon Sep 23 17:55:30 1996 Michael Meissner <meissner@tiktok.cygnus.com>
247 * simops.c (op_types): Add OP_{CONSTANT8,R2,R3}.
248 (trace_input_func): Add support for OP_{CONSTANT8,R2,R3}.
249 (OP_{4900,24800000,4800,4A00,4B00,4D00,4C00}): Add OP_R2 and OP_R3
250 to call/subroutine returns to trace the first two arguments and
251 the return value. For small jumps, use CONSTANT8, not CONSTANT16.
253 Fri Sep 20 15:36:45 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
255 * interp.c (sim_create_inferior): Reinitialize State every time
256 sim_create_inferior() is called.
258 Thu Sep 19 21:38:20 1996 Michael Meissner <meissner@wogglebug.ziplink.net>
260 * simops.c (OP_{401,2000000,601,3000000,23000000}): Get sign right
262 (OP_401): Fix tracing information.
264 Thu Sep 19 10:30:22 1996 Michael Meissner <meissner@tiktok.cygnus.com>
266 * simops.c (SIZE_{PC,LINE_NUMBER}): New default sizes for output.
267 (trace_input_func): Use them.
268 (trace_input_func): Make sure there is a trailing space after the
270 (OP_6200): Fix tracing info.
272 * Makefile.in (run): Add dependencies on libbfd.a and
275 Wed Sep 18 09:13:25 1996 Michael Meissner <meissner@tiktok.cygnus.com>
277 * d10v_sim.h (DEBUG_INSTRUCTION): New debug value to include line
278 numbers and function names in debug trace.
279 (DEBUG): If not defined, set to DEBUG_TRACE, DEBUG_VALUES, and
281 (SIG_D10V_{STOP,EXIT}): Values to represent the stop instruction
282 and exit system call trap being executed.
284 * interp.c (sim_stop_reason): Set exit code correctly for stop
285 instruction and exit system call trap.
287 * configure.in (--enable-sim-cflags): Remove trace case.
288 (--enable-sim-debug): New switch to set the debug values.
289 * configure: Regenerate.
291 * simops.c (trace_{input,output}_func): Rename from
292 trace_{input,output}.
293 (trace_{input,output}): Call trace_{input,output}_func if
294 d10v_debug is non-zero.
295 (SIZE_INSTRUCTION): Cut down to 8.
296 (SIZE_OPERANDS): Cut down to 18.
297 (SIZE_LOCATION): New value for size of line number, function name
299 (init_text_p,text{,_start,_end}): New static variables for
300 printing line number and function name.
301 (exec_bfd): New external that run.c sets.
302 (trace_input_func): Print line number and function name if
303 available and if desired.
304 (OP_4E09): Don't print out DBT message.
305 (OP_5FE0): Set exception field to SIG_D10V_STOP.
306 (OP_5F00): Set exception field to SIG_D10V_EXIT.
308 Sat Sep 14 22:18:43 1996 Michael Meissner <meissner@tiktok.cygnus.com>
310 * interp.c (do_2_short): If the instruction encodes jump->ins,
311 don't do the second instruction if the jump succeeds.
313 Fri Sep 13 22:35:19 1996 Michael Meissner <meissner@tiktok.cygnus.com>
315 * simops.c (OP_5F00): Use unknown traps to print all GPRs,
316 accumulators, PC, and F0/F1/C flags.
318 Thu Sep 12 12:50:11 1996 Mark Alexander <marka@cygnus.com>
320 * simops.c (OP_5F00): Fix problems with system calls.
322 Thu Sep 12 12:19:28 1996 Michael Meissner <meissner@tiktok.cygnus.com>
324 * simops.c (OP_5F00): Correct tracing information for trap.
326 Wed Sep 11 18:55:50 1996 Michael Meissner <meissner@tiktok.cygnus.com>
328 * Makefile.in (CSEARCH): Correctly find opcodes directory.
330 Mon Sep 9 13:27:26 1996 Michael Meissner <meissner@tiktok.cygnus.com>
332 * simops.c (trace_output): Properly align accumulator output.
333 (OP_3{0,2,4}00): Properly parenthesize test expression. Add error
334 if shift count is too high.
335 (OP_4E{00,02,04,20,22,40,42}): Make tests agree with book.
336 (OP_4E09): Make cpfg properly trace the input flags.
337 (op_types): Add OP_FLAG_OUTPUT.
338 (trace_{input,output}): Support OP_FLAG_OUTPUT.
339 (OP_31000000): This ld2w varient is a 16-bit memory reference, not
340 an 8-bit memory reference instruction for tracing purposes.
341 (OP_201): Addi needs to set the carry.
343 Fri Sep 6 17:56:17 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
345 * simops.c (OP_2600, OP_2601): Changed min and max comparisons
346 to use signed register values.
348 Wed Sep 4 11:35:17 1996 Michael Meissner <meissner@tiktok.cygnus.com>
350 * d10v_sim.h (DEBUG_*): Add bit flags for controlling debug
352 (_ins_type): New enumeration to specify which container an
353 instruction is in, and whether it is part of a parallel operation.
354 (_state): Add ins_type field.
355 ({,u}int{8,16,32,64}): Use limits.h to size the appropriate types.
356 (ins_type_counters): Counters for the various instruction types.
357 ({left,right}_nops): Counters for the number of nops in each
359 (d10v_debug): New variable to indicate whether debugging is turned
362 * simops.c: (all functions): Change all #ifdef DEBUG code so that
363 the input and output values can be traced, along with the
364 instruction type. Make the -t option enable tracing.
365 (all functions): Change printf calls to use the printf_filtered
366 function in the callback table.
368 * interp.c (_leftright): New enumeration to say whether 2 short
369 instructions are done left first or right first.
370 (do_{long,2_short,parallel}): Indicate in the machine state which
371 type of instruction this is. Count each of the types of
372 instructions executed.
373 (sim_size): Only print the memory sizes if DEBUG_MEMSIZE debug
375 (sim_resume): Pass left/right indication to do_2_short.
376 (all functions): Change printf calls to use the printf_filtered
377 function in the callback table.
378 (sim_trace): Turn on debug flag if DEBUG was defined, and call
380 (sim_info): Print out statistics on instructions.
381 (sim_{trace,create_inferior}): Eliminate extraneous output unless
383 (sim_open): If args == -t and DEBUG was defined, set d10v_debug.
384 Only initialize the hash table the first time sim_open is called.
386 * Makefile.in: Make objects depend on d10v_sim.h.
387 ({,SIM_}CFLAGS): Include configure dependent switches. Setting
388 CFLAGS does not override host/target defines or SIM_CFLAGS.
389 (CC_FOR_BUILD,gencode): Use CC_FOR_BUILD to compile gencode.
390 (run): By default, the math library is not needed to be linked
392 ({BFD,LIBIBERTY}_LIB): Define as variables so they can be
394 (VPATH): Don't set to anything but @srcdir@ to work with non-GNU
396 ({run,callback}.o): Provide explicit paths to their appropriate
398 (gencode{,.o},d10v-opc.o): Split compilation into creating object
399 and linking. Instead of linking in libopcodes.a, just compile
400 d10v-opc.o directly to handle canadian cross.
401 (CSEARCH): Add opcodes directory.
403 * configure.in (--enable-sim-cflags): New switch to allow user to
405 (CC_FOR_BUILD): Deal with canadian crosses.
406 * configure: Regenerate.
408 Wed Sep 04 04:45:34 1996 Mark Alexander <marka@cygnus.com>
410 * simops.c: Include correct syscall.h for d10v, not host's.
413 Tue Sep 3 14:00:04 1996 Michael Meissner <meissner@tiktok.cygnus.com>
415 * simops.c (OP_5F00): Wrap all SYS_xxx traps with #ifdef.
416 Add trap 2 to be printf and trap 3 to be putchar.
418 Wed Aug 28 21:42:34 1996 Mark Alexander <marka@cygnus.com>
420 * Makefile.in, d10v_sim.h, interp.c, simops.c: Add support
421 for low-level system calls.
423 Wed Aug 28 17:33:19 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
425 * Makefile.in, d10v_sim.h, interp.c: Fix byte-order problems.
427 Mon Aug 26 18:30:28 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
429 * d10v_sim.h (SEXT32): Added.
430 * interp.c: Commented out printfs.
431 * simops.c: Fixed error in sb and st2w.
433 Thu Aug 15 13:30:03 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
435 * Makefile.in, d10v_sim.h, interp.c, simops.c: Added remaining
436 DSP instructions. Added modulo addressing.
438 Sun Aug 11 12:57:15 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
440 * Makefile.in, d10v_sim.h, interp.c, simops.c: Snapshot.
442 Fri Aug 2 17:44:24 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
444 * d10v_sim.h, simops.c: Snapshot.
446 Thu Aug 1 17:05:24 1996 Martin M. Hunt <hunt@pizza.cygnus.com>
448 * ChangeLog, Makefile.in, configure, configure.in, d10v_sim.h,
449 gencode.c, interp.c, simops.c: Created.