Initial creation of sourceware repository

1 files changed, 0 insertions, 967 deletions

diff --git a/sim/d10v/ChangeLog b/sim/d10v/ChangeLog
deleted file mode 100644
index d8923c8..0000000
--- a/sim/d10v/ChangeLog
+++ /dev/null
@@ -1,967 +0,0 @@
-1999-01-26  Jason Molenda  (jsm@bugshack.cygnus.com)
-
-	* simops.c (OP_5605): Sign extend MIN32 and MAX32 before saturation
-        comparison.
-	(OP_5607): Ditto.
-	(OP_2A00): Ditto.
-	(OP_2800): Ditto.
-
-1999-01-13  Jason Molenda  (jsm@bugshack.cygnus.com)
-
-	* simops.c (OP_1223): Sign extend MIN32 and MAX32 before saturation
-	comparison.
-
-Tue Nov 24 17:04:43 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (sys/syscall.h): Include targ-vals.h instead.
-	(SYS_*): Replace with TARGET_SYS_*.
-
-	* Makefile.in: Add dependency on targ-vals.h.
-	(NL_TARGET): Define as NL_TARGET_d10v.
-
-Wed Sep 30 00:06:32 1998  Andrew Cagney  <cagney@amy.cygnus.com>
-
-	* interp.c (xfer_mem): Missing break, instruction memory case
- 	flowed into unified memory case.
-
-Wed Sep 30 10:14:18 1998  Nick Clifton  <nickc@cygnus.com>
-
-	* simops.c: If load instruction with auto increment/decrement
-	addressing is used when the destination register is the same as
-	the address register, then ignore the auto increment/decrement.
-
-Tue Apr 28 18:33:31 1998  Geoffrey Noer  <noer@cygnus.com>
-
-        * configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Sun Apr 26 15:31:55 1998  Tom Tromey  <tromey@creche>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-	* config.in: Ditto.
-
-Sun Apr 26 15:20:23 1998  Tom Tromey  <tromey@cygnus.com>
-
-	* acconfig.h: New file.
-	* configure.in: Reverted change of Apr 24; use sinclude again.
-
-Fri Apr 24 14:16:40 1998  Tom Tromey  <tromey@creche>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-	* config.in: Ditto.
-
-Fri Apr 24 11:20:06 1998  Tom Tromey  <tromey@cygnus.com>
-
-	* configure.in: Don't call sinclude.
-
-Fri Apr 24 11:04:46 1998  Andrew Cagney  <cagney@chook.cygnus.com>
-
-	* interp.c (struct hash_entry): OPCODE and MASK are unsigned.
-
-	* d10v_sim.h (remote-sim.h, sim-config.h): Include.
-	
-Sat Apr  4 20:36:25 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Wed Apr  1 12:59:17 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (trace_input_func): Use move_from_cr / CREGS to obtain
- 	up-to-date CR value.
-	(OP_OP_1000000, add3): Trace inputs before performing add.
-	(OP_5F00, <*>): Trace input registers before making system call.
-	(OP_5F00, <kill>): Trace R0, R1 not REGn.
-	(OP_5F00, <getpid>): Always return 47.
-	
-	* d10v_sim.h (SLOT, SLOT_NR, SLOT_PEND_MASK, SLOT_PEND,
- 	SLOT_DISCARD, SLOT_FLUSH): Define.  An implementation of write
- 	back slots.
-	(struct _state): Add struct slot slot to global state variable.
-	(struct _state): Delete fields SM, EA, DB, DM, IE, RP, MD, FX, ST,
- 	F0, F1, C from global State variable.
-	(struct _state): Add struct trace to global State variable.
-	(GPR, SET_GPR): Define.  SET_GPR uses SLOT_PEND.
-	(PSW*, SET_PSW*): Define. SET_PSW* uses SET_CREG.
-	(CREG, SET_CREG, SET_*): Define. SET_CREG uses func move_to_cr.
-	(INC_ADDR): Re-implement.  Use SET_GPR to update registers.
-	(JMP): Re-implement. Use SET_* to update registers.
-
-	* interp.c: Use new SET_* et.al. macros to fetch / store
- 	registers.
-	(get_operands): Squirrel away trace values at start of each
- 	operand decode.
-	(do_2_short): Flush pending writes before issuing second
- 	instruction.
-	(sim_resume): Flush pending writes at end of instruction cycle.
-	(sim_fetch_register, sim_store_register, sim_create_inferior):
- 	After scheduling updates to registers using SET_*, flush updates.
-	(sim_resume): Re-order handling of RPT/repeat and IBA/hbreak so
- 	that each sets pc using SET_* and last SET_* eventually winds out.
-	
-	* simops.c: Use new SET_* et.al. macros to fetch / store
- 	registers.
-	(move_to_cr): Add MASK argument for selective update of CREG bits.
-  	Re-implement using new SET_* macros.
-	(trace_output_func, trace_output): Delete. Replace with.
-	(do_trace_output_flush, trace_output_finish, trace_output_40,
- 	trace_output_32, trace_output_16, trace_output_void,
- 	trace_output_flag): New functions.  Handle specific trace cases.
-	(OP_*): Re-write tracing to use new trace_output_* functions.
-	(OP_*): Re-write to use new SET_* et.al. macros.
-	(FUNC, PARM[1-4], RETVAL, RETVAL32): Redo definition.
-	(RETVAL_HIGH, RETVAL_LOW): Delete, use RETVAL32.
-	
-Wed Apr  1 12:55:18 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure.in (SIM_AC_OPTION_WARNINGS): Add.
-	configure: Re-generate.
-
-Fri Mar 27 16:15:52 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Wed Mar 25 12:35:29 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Wed Mar 18 12:38:12 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Tue Feb 17 12:38:42 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* interp.c (sim_store_register, sim_fetch_register): Pass in
- 	length parameter.  Return -1.
-
-Mon Oct 27 14:43:33 1997  Fred Fish  <fnf@cygnus.com>
-
-	* (dmem_addr): If address is illegal or in I/O space, signal a bus
- 	error.  Allocate unified memory on demand.  Fix DMEM address
- 	calculations.
-	
-Mon Feb 16 10:27:53 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (OP_5F20): Implement "dbt".
-	(OP_5F60): Implement "rtd".
-
-	* d10v_sim.h (DPC_CR): Define enum.
-	(DBT_VECTOR_START): Define
-	(DPSW, DPC): Define.
-
-Fri Feb 13 15:15:58 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (move_to_cr): Sync regs[SP_IDX] with State.sp according
- 	to PSW:SM.
-
-	* d10v_sim.h (struct _state): Add sp, as holding area for SPI/SPU.
-	(SP_IDX): Define.
-
-Wed Feb 11 16:53:49 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (OP_5F00): Call error instead of abort for unknown
- 	syscalls.
-
-	* d10v_sim.h (enum): Define DPSW_CR.
-
-	* simops.c (move_to_cr): Mask out hardwired zero bits in DPSW.
-
-Tue Feb 10 18:28:38 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* interp.c (sim_write_phys): Delete.
-	(sim_load): Call sim_load_file with sim_write and LMA.
-
-Mon Feb  9 12:05:01 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* interp.c: Rewrite xfer_mem so that it translates addresses as -
- 	0x00... - DMAP translated memory, 0x01... IMAP translated memory,
- 	0x10... - on-chip data, 0x11... - on-chip insn, 0x12... - unified
- 	memory.
-	(pc_addr): Delete.
-	(imem_addr): New function - translate IMEM address.
-	(sim_resume): Use imem_addr to translate insn address, abort if
- 	translation failed.
-	(sim_create_inferior): Write ARGV to memory using sim_write.  Pass
- 	argc/argv using r0/r1 not r2/r3.
-	(sim_size): Do not initialize IMAP/DMAP here.
-	(sim_open): Call sim_create_inferior and sim_size to initialize
- 	the system.
-	(sim_create_inferior): Initialize IMAP/DMAP to hardware reset
- 	defaults.
-	(init_system): Delete.
-	(xfer_mem, sim_fetch_register, sim_store_register): Do not call
- 	init_system.
-	(decode_pc): Check prog_bfd is defined before looking up .text
- 	section.
-
-Sun Feb  1 16:47:51 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Sat Jan 31 18:15:41 1998  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Sun Jan 25 22:23:01 1998  Michael Meissner  <meissner@cygnus.com>
-
-	* interp.c (sim_stop_reason): Exit status is now in r0, not r2.
-
-Sat Jan 24 19:00:30 1998  Michael Meissner  <meissner@cygnus.com>
-
-	* d10v_sim.h (DEBUG_TRAP): New debug flag.
-
-	* simops.c (OP_5F00): If DEBUG_TRAP is on, turn traps 0-14 into
-	printing the registers.
-
-Thu Jan 22 17:54:01 1998  Michael Meissner  <meissner@cygnus.com>
-
-	* simops.c (op_types): New ABI, args are r0..r3, system call # is
-	in r4.
-	(trace_{in,out}put_func): Ditto.
-	(OP_4900): Ditto.
-	(OP_24800000): Ditto.
-	(OP_4D00): Ditto.
-	(OP_5F00): Ditto.
-
-Thu Jan 22 14:30:36 1998  Fred Fish  <fnf@cygnus.com>
-
-	* interp.c (UMEM_SEGMENTS): New define, set to 128.
-	(sim_size): Use UMEM_SEGMENTS rather than hardwired constant.
-	(sim_close): Reset prog_bfd to NULL after closing it.  Also
-	reset prog_bfd_was_opened_p after closing prog_bfd.
-	(sim_load): Reset prog_bfd_was_opened_p after closing prog_bfd.
-	(sim_create_inferior): Get start address from abfd not prog_bfd.
-	(xfer_mem): Do bounds checking on addresses and return zero length
-	read/write on bad addresses, rather than aborting.  Prepare to
-	be able to handle xfers that cross segment boundaries, but not
-	yet implemented.  Only emit debug message when d10v_debug is
-	set as well as DEBUG being defined.
-
-Mon Jan 19 22:26:29 1998  Doug Evans  <devans@seba>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Mon Dec 15 23:17:11 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-	* config.in: Ditto.
-
-Tue Dec  9 10:28:31 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* d10v_sim.h (RPT_S): Index cregs with RPT_S_CR not RPT_E_CR.
-	(BPSW): Ditto for BPSW_CR and not PSW_CR.
-
-	* simops.c (OP_5F40): JMP to BPC instead of assigning PC directly.
-	
-Mon Dec  8 12:58:33 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (OP_5F00): From Martin Hunt <hunt@cygnus.com>. Change
- 	reserved trap from 0 to 15. Add trap emulation code for 0-14.
-
-	* interp.c (sim_resume): From Martin Hunt <hunt@cygnus.com>. Check
- 	IBA for SDBT.
-
-	* d10v_sim.h (AE_VECTOR_START, RIE_VECTOR_START,
- 	SDBT_VECTOR_START, TRAP_VECTOR_START): Define.
-	
-	* simops.c (OP_5F00): For "trap", mask out all but SM bit in PSW,
- 	use move_to_cr.
-	(OP_5F00): For "trap", update BPSW with move_to_cr.
-
-Fri Dec  5 15:31:17 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* d10v_sim.h (enum): Enumerate CR register names.
-	(enum): Enumerate PSW bit values.
-	(PSW): Obtain value uing move_from_cr.
-	(MOD_S, MOD_E, BPSW): Make r-values.
-	(move_from_cr, move_to_cr): Declare functions.
-	
-	* interp.c (sim_fetch_register, sim_store_register): Use
- 	move_from_cr and move_to_cr for CR register transfers.
-
-	* simops.c (move_from_cr, move_to_cr): New functions.
-	(OP_5F40): Move BPSW to PSW using move_to_cr and move_from_cr.
-	(OP_5600): For "mvtc", use function move_to_cr.
-	(OP_5200): For "mvfc", use function move_from_cr.
-
-Fri Dec  5 13:33:14 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (OP_5600): For "mvtc" MOD_E and MOD_S, ensure that the
- 	LSbit is zero.
-
-Thu Dec  4 09:21:05 1997  Doug Evans  <devans@canuck.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Thu Dec  4 16:51:02 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* d10v_sim.h (struct _state): Add DM - PSW debug mask.
-
-	* simops.c (OP_5600): For "mvtc", save PSW.DM.
-	(OP_5200): Ditto for "mvfc".
-
-Wed Dec  3 17:27:06 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* d10v_sim.h (SEXT56): Define.
-
-	* simops.c (OP_4201): For "rac", sign extend 56 bit value before
- 	it is shifted.
-
-	* d10v_sim.h (MAX32, MIN32, MASK32, MASK40): Re-define using
- 	SIGNED64 macro.
-
-Tue Dec  2 15:38:34 1997  Fred Fish  <fnf@cygnus.com>
-
-	* interp.c (sim_resume): Call do_2_short with LEFT_FIRST or
-	RIGHT_FIRST, as appropriate, instead of hardcoded ints that
-	don't match enum values.
-
-Tue Dec  2 15:01:08 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (OP_3A00): For "macu", perform multiply stage using 32
- 	bit rather than 16 bit precision.
-	(OP_3C00): For "mulxu", store unsigned product in ACC.
-	(OP_3800): For "msbu", subtract unsigned product from ACC,
-	(OP_0): For "sub", compute carry by comparing inputs.
-
-Tue Dec  2 11:04:37 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (OP_1000): For "sub2w", compute carry by comparing
- 	inputs.
-
-Mon Nov 17 20:57:21 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (OP_1): Use 32 bit unsigned arithmetic for subtract,
- 	carry indicated by value > 0xffff.
-
-Fri Nov 14 12:51:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* interp.c (sim_resume): Don't set up SIGINT handler using signal,
- 	handled by client.
-	(sim_resume): Fix race condition of a direct assignment to
- 	stop_simulator, conditionally call sim_stop.
-	(sim_stop_reason): Check stop_simulator returning SIGINT.  Clear
- 	stop_simulator ready for next sim_resume call.
-	(sim_ctrl_c): Delete function.
-
-Thu Nov 13 19:29:34 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* interp.c (sim_resume): For "REP", only check/update the PC when
- 	a branch instruction has not been executed.
-
-Mon Nov 10 17:50:18 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (OP_4201): "rachi". Sign extend bit 40 of ACC.  Sign
- 	extend bit 44 all constants.
-	(OP_4201): Replace GCC specific 0x..LL with SIGNED64 macro.
-	
-Fri Oct 24 10:26:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* d10v_sim.h: Include sim-types.h.
-	(uint8, in816, uiny16, int32, uint32, int64, uint64): Typedef
- 	using unsigned8 et.al. from sim-types.h.
-	(SEXT32, SEXT40, SEXT44, SEXT60): Replace GCC specific 0x..LL with
- 	SIGNED64 macro.
-
-Wed Oct 22 14:43:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* interp.c (sim_write_phys): New function, write to physical
- 	instead of virtual memory.
-	
-	* interp.c (sim_load): Pass lma_p and sim_write_phys to
- 	sim_load_file.
-
-Mon Oct 13 10:55:07 1997  Fred Fish  <cygnus.com>
-
-	* simops.c (OP_6A01): Change OP_POSTDEC to OP_POSTINC and move
-	exception generation code to OP_6E01.
-	(OP_6E01): Change OP_POSTINC to OP_POSTDEC and insert exception
-	generation code.
-
-Sat Oct 11 09:02:08 1997  Fred Fish  <fnf@cygnus.com>
-
-	* simops.c (OP_6401): postdecrement on r15 is OK, remove exception.
-	(OP_6601): Ditto.
-
-Fri Oct  3 09:28:00 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Sat Sep 27 12:51:34 1997  Fred Fish  <fnf@cygnus.com>
-
-	* interp.c (pc_addr): Discard upper bit(s) of PC in case
-	IMAP1 selects unified memory.
-	* d10v_sim.h (INC_ADDR): Align MOD_E to increment before testing
-	for end condition.
-
-Wed Sep 24 17:38:57 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Tue Sep 23 11:04:38 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Mon Sep 22 11:46:20 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Fri Sep 19 17:45:25 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Mon Sep 15 17:36:15 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Wed Sep 10 22:30:24 1997  Martin M. Hunt  <hunt@cygnus.com>
-
-	* interp.c (sim_resume): Increment PC at end of rep
-	loop.
-
-	* simops.c (OP_4201): Fix rachi instruction.
-
-Thu Sep  4 17:21:23 1997  Doug Evans  <dje@seba>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Wed Aug 27 18:13:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-	* config.in: Ditto.
-
-Tue Aug 26 10:37:49 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* interp.c (sim_kill): Delete.
-	(sim_create_inferior): Add ABFD argument.
-	(sim_load): Move setting of PC from here.
-	(sim_create_inferior): To here.
-	(start_address): Delete variable.
-
-Mon Aug 25 17:50:22 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-	* config.in: Ditto.
-
-Mon Aug 25 15:39:29 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* interp.c (sim_open): Add ABFD argument.
-
-Tue May 20 10:14:45 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* interp.c (sim_open): Add callback argument.
-	(sim_set_callbacks): Remove SIM_DESC argument.
-
-Thu Apr 24 00:39:51 1997  Doug Evans  <dje@canuck.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Tue Apr 22 10:29:23 1997  Doug Evans  <dje@canuck.cygnus.com>
-
-	* interp.c (sim_open): Undo patch to add -E support.
-
-Fri Apr 18 13:39:01 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* interp.c (sim_stop): New function.
-
-Thu Apr 17 02:42:00 1997  Doug Evans  <dje@canuck.cygnus.com>
-
-	* Makefile.in (SIM_OBJS): Add sim-load.o.
-	* d10v_sim.h (exec_bfd): Rename to prog_bfd.
-	* interp.c: #include bfd.h.
-	(myname, sim_kind, start_address): New static locals.
-	(prog_bfd_was_opened_p, prog_bfd): New static locals.
-	(decode_pc): Update to use prog_bfd.
-	(sim_open): Set sim_kind, myname.  Ignore -E arg.
-	(sim_close): Close prog_bfd if simulator opened it.
-	(sim_create_inferior): Return SIM_RC.  Delete arg start_address.
-	(sim_load): Return SIM_RC.  New arg abfd.  Set start address from bfd.
-	Call sim_load_file to load file into simulator.
-	* simops.c (trace_input_func): exec_bfd renamed to prog_bfd.
-
-Wed Apr 16 16:12:03 1997  Andrew Cagney  <cagney@b1.cygnus.com>
-
-	* simops.c (OP_5F00): Only provide system calls SYS_execv,
- 	SYS_wait, SYS_wait, SYS_utime, SYS_time if defined by the host.
-	
-Mon Apr  7 15:45:02 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-	* config.in: Ditto.
-
-Wed Apr  2 15:06:28 1997  Doug Evans  <dje@canuck.cygnus.com>
-
-	* interp.c (sim_open): New arg `kind'.
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Wed Apr  2 14:34:19 1997 Andrew Cagney <cagney@kremvax.cygnus.com>
-
-	* configure: Regenerated to track ../common/aclocal.m4 changes.
-
-Mon Mar 17 15:10:07 1997  Andrew Cagney  <cagney@kremvax.cygnus.com>
-
-	* configure: Re-generate.
-
-Fri Mar 14 10:34:11 1997  Michael Meissner  <meissner@cygnus.com>
-
-	* configure: Regenerate to track ../common/aclocal.m4 changes.
-
-	* simops.c (OP_5F00): Remove old traps 1-3.  Make trap 15 the same
-	as trap 0, which will be deprecated.  Only set errno, if an error
-	in fact was returned.
-
-Thu Mar 13 12:41:20 1997  Doug Evans  <dje@canuck.cygnus.com>
-
-	* interp.c: Delete redundant prototypes of sim_foo fns.
-	(sim_open): New SIM_DESC result.  Argument is now in argv form.
-	(other sim_*): New SIM_DESC argument.
-
-Thu Mar 13 10:29:04 1997  Michael Meissner  <meissner@cygnus.com>
-
-	* simops.c (trace_{input,output}_func): Call flush_stdout from the
-	callback functions.
-	(OP_5F00): Ditto.
-	(OP_6{4,6,C,A}01): Test for post decrement on the stack pointer.
-	(OP_{1200,1000000,201,5FE0,1003,17001002}): Fix problems in
-	setting the carry bit after an add or a subtract.
-
-Wed Feb 12 16:04:15 1997  Michael Meissner  <meissner@cygnus.com>
-
-	* simops.c (OP_{1403,15002A02,3{0,4}0{0,1}}): Only use the bottom
-	40 bits of accumulators.  Sign/zero extend as appropriate.
-
-Tue Feb  4 13:33:30 1997  Doug Evans  <dje@canuck.cygnus.com>
-
-	* Makefile.in (@COMMON_MAKEFILE_FRAG): Use
-	COMMON_{PRE,POST}_CONFIG_FRAG instead.
-	* configure.in: sinclude ../common/aclocal.m4.
-	* configure: Regenerated.
-
-Thu Jan 23 11:46:23 1997  Stu Grossman  (grossman@critters.cygnus.com)
-
-	* configure configure.in Makefile.in:  Update to new configure
-	scheme which is more compatible with WinGDB builds.
-	* configure.in:  Improve comment on how to run autoconf.
-	* configure:  Re-run autoconf to get new ../common/aclocal.m4.
-	* Makefile.in:  Use autoconf substitution to install common
-	makefile fragment.
-
-Fri Dec 27 22:54:05 1996  Angela Marie Thomas (angela@cygnus.com)
-
-	* gencode.c: patch to not #include "d10v_sim.h" which
-	unecessarily includes bfd.h and causes wingdb configure
-	to fail.
-
-Mon Dec 16 13:39:03 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* interp.c (xfer_mem): Change unified memory to 0x0.
-
-Thu Nov 28 20:42:56 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* simops.c (OP_3E01): Fix tracing information.
-	(OP_300{0,1}): Do not propigate sign.
-
-Mon Nov 25 19:47:40 1996  Doug Evans  <dje@canuck.cygnus.com>
-
-	* config.in (WORDS_BIGENDIAN): Add.
-	* configure: Regenerated.
-	* d10v_sim.h: #include "config.h"
-
-Sat Nov 23 09:34:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* gencode.c (write_opcodes): Eliminate warnings when generated
-	table.c is compiled.
-
-Wed Nov 20 19:41:40 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* interp.c (sim_open): Cast result of calloc, and make sure NULL
-	was not returned.
-	(dmem_addr): If address is illegal or in I/O space, signal a bus
-	error.
-	(pc_addr): Signal bus error, not illegal instruction for bogus
-	pc.
-
-Wed Nov 20 01:23:03 1996  Doug Evans  <dje@canuck.cygnus.com>
-
-	* Makefile.in: Delete all stuff moved to ../common/Make-common.in.
-	(SIM_OBJS,SIM_EXTRA_CFLAGS,SIM_EXTRA_CLEAN): Define.
-	* configure.in: Simplify using macros in ../common/aclocal.m4.
-	Call AC_CHECK_HEADERS(unistd.h).
-	* configure: Regenerated.
-	* config.in: New file.
-	* interp.c: #include "callback.h".
-	* simops.c: #include "config.h".  #include <unistd.h> if present.
-
-Fri Nov  8 16:19:55 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* d10v-sim.h (simops): Add flag is_long.
-	(State): Add pc_changed.  Instructions which update the PC should
-	use the JMP macro which sets this.
-	(JMP): New macro.  Sets the PC and the pc_changed flag.
-
-	* gencode.c (write_opcodes): Add is_long field.
-	
-	* interp.c (lookup_hash): If we blindly apply a short opcode's mask
-	to a long opcode we could get a false match.  Check the opcode size.
-	(hash): Add a size field to the hash table.
-	(sim_open): Initialize size field in hash table.
-	(sim_resume): Change to logic for setting the PC.  Used to increment the
-	PC if it had not been changed.  This didn't allow single-instruction loops.
-	Now checks the flag State.pc_changed.  Also now stops when ^C is received.
-	(dmem_addr): Fix translation of data segments to unified memory.
-	(sim_ctrl_c): New function.  When ^C is received, set stop_simulator flag.
-
-	* simops.c: Changed all branch and jump instructions to use new JMP macro.
-	(OP_20000000): Corrected trace information to show this is a ldi.l, not
-	a ldi.s instruction.
-	
-Thu Oct 31 19:13:55 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* interp.c (sim_fetch_register, sim_store_register): Fix bug where
-	updating the accumulators was overwriting other parts of the global
-	State variable.
-
-Wed Oct 30 17:35:14 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* interp.c (bfd.h) Don't include it here any more.
-	(text{,_start,_end}): Move here from simops.c and make extern.
-	(decode_pc): New function to return the PC as an address that the
-	debugger can use.
-	(dmem_addr): Print decoded PC in error message.
-	(pc_addr): Ditto.
-
-	* simops.c (bfd.h) Don't include it here any more.
-	(text{,_start,_end}): Move to simops.c.
-	(trace_input_func): Move decoding of PC, and looking up .text
-	start to decode_pc.
-
-	* d10v_sim.h (bfd.h): Include it here.
-	(text{,_start,_end}): Add external declarations.
-	(exec_bfd): Ditto.
-	(decode_pc): Ditto.
-
-Tue Oct 29 12:13:52 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* interp.c (sim_size): Now allocates unified memory for imap segments
-	0,1,2, and 127. Initializes imap0 and imap1 to 0x1000.  Initializes dmap to 0.
-	(sim_write): Just call xfer_mem().
-	(sim_read): Just call xfer_mem().
-	(xfer_mem): New function. Does appropriate memory mapping and copies bytes.
-	(dmem_addr): New function. Reads dmap register and translates data
- 	addresses to local addresses.
-	(pc_addr): New function. Reads imap register and computes local address
-	corresponding to contents of the PC.
-	(sim_resume): Change to use pc_addr().
-	(sim_create_inferior): Change reinitialization code. Also reinitializes
-	imap[01] and dmap.
-	(sim_fetch_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
-	(sim_store_register): Add fake registers 32,33,34 for imap0, imap1, and dmap.
-
-	* simops.c (MEMPTR): Redefine to use dmem_addr().
-	(OP_5F00): Replace references to STate.imem with dmem_addr().
-	
-	* d10v-sim.h (State): Remove mem_min and mem_max. Add umem[128].
-	(RB,SW,RW,SLW,RLW): Redefine to use dmem_addr().
-	(IMAP0,IMAP1,DMAP,SET_IMAP,SET_IMAP1,SET_DMAP): Define.
-	
-Tue Oct 22 15:22:33 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* d10v_sim.h (_ins_type): Reorganize, so that we can provide
-	better statistics, like not counting NOPS as parallel
-	instructions, and printing total cycles.
-	(ins_type_counters): Make unsigned long.
-	(left_nops,right_nops): Fold into ins_type_counters.
-
-	* simops.c (trace_input_func): Print new instruction types.
-	Handle OP_R2R3 as input types.
-	(OP_{38000000,7000}): Correctly sign extend bytes.
-	(OP_5E00): Don't count NOPs as parallel instructions.
-	(OP_460B): Remove unused variable.
-	(OP_5F00): Ditto.
-
-	* interp.c (ins_type_counters): Make unsigned long.
-	(left_nops,right_nops): Delete.
-	(most functions): Add prototypes.
-	(INLINE): If GCC and optimize define as __inline__.
-	({,lookup_}hash,get_operands): Declare as INLINE.
-	(do_parallel): Count conditional operations.
-	(add_commas): New function, to add commas every 3 digits.
-	(sim_size): Call add_commas to print numbers.
-	(sim_{open,resume}): Delete unused variables.
-	(sim_info): Provide better statistics.
-	(sim_read): Add int return type.
-
-Mon Oct 21 16:16:26 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* interp.c (sim_resume): Change the way single-stepping and exceptions
- 	are handled so single-stepping works again.
-
-Thu Oct 17 12:24:16 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* endian.c: Optimize simulated loads/stores on x86, AIX, and big
-	endian hosts.
-
-	* configure.in (--enable-sim-bswap): New switch to enable using
-	the BSWAP instruction on x86's.
-	* configure: Regenerate.
-
-	* Makefile.in ({SWAP,CONFIG}_CFLAGS): Add --enable-sim-bswap
-	support.
-
-Wed Oct 16 13:50:06 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* endian.c: New file.  Move endian functions here from interp.c.
-	Optimize code, and make it work as either inline functions or as a
-	separate file.
-
-	* interp.c: Move endian functions from here to endian.c.
-
-	* Makefile.in (INCLUDE): Add endian.c.
-	(run,libsim.a): Add dependency on endian.o.
-	(endian.o): Add dependency.
-
-	* d10v_sim.h (read/write support): Always go through the machine
-	independent endian functions.  If compiling with GCC and
-	optimizing, include endian.c so the endian functions are inlined.
-
-	* simops.c (OP_5F00): Correct tracing of accumulators.	
-
-Tue Oct 15 10:57:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* simops.c (OP_5F00): Add support for getpid, kill system calls.
-
-	* interp.c (do_{2_short,parallel}): If an exception is raised,
-	don't execute the second instruction.
-
-Sat Oct 12 22:17:43 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* simops.c (OP_{31000000,6601,6201,6200}): Store address in a
-	temporary in case the register is overriden when loading.
-	(OP_6200): Output type is OP_DREG for tracing.
-
-Fri Oct  4 23:46:18 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* d10v_sim.h (struct _state): Add mem_{min,max} fields.
-
-	* interp.c (sim_size): Initialize mem_{min,max} fields.
-	(sim_write): Update mem_{min,max} fields.
-	(sim_resume): If PC is not in the minimum/maximum memory range,
-	abort.
-	(sim_create_inferior): Preserve mem_{min,max} fields.
-
-Fri Sep 27 13:11:58 1996  Mark Alexander  <marka@cygnus.com>
-
-	* simops.c (OP_5F00): Add support for time() system call.
-
-Wed Sep 25 16:31:41 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* simops.c (OP_{6E01,6A01,6E1F,6A00}): Print both words being
-	stored if tracing.
-	(OP_5F00,trace_{in,out}put_func): Add finer grain tracing for
-	system calls.
-
-Mon Sep 23 17:55:30 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* simops.c (op_types): Add OP_{CONSTANT8,R2,R3}.
-	(trace_input_func): Add support for  OP_{CONSTANT8,R2,R3}.
-	(OP_{4900,24800000,4800,4A00,4B00,4D00,4C00}): Add OP_R2 and OP_R3
-	to call/subroutine returns to trace the first two arguments and
-	the return value.  For small jumps, use CONSTANT8, not CONSTANT16.
-
-Fri Sep 20 15:36:45 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* interp.c (sim_create_inferior): Reinitialize State every time 
-	sim_create_inferior() is called.
-
-Thu Sep 19 21:38:20 1996  Michael Meissner  <meissner@wogglebug.ziplink.net>
-
-	* simops.c (OP_{401,2000000,601,3000000,23000000}): Get sign right
-	on comparisons.
-	(OP_401): Fix tracing information.
-
-Thu Sep 19 10:30:22 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* simops.c (SIZE_{PC,LINE_NUMBER}): New default sizes for output.
-	(trace_input_func): Use them.
-	(trace_input_func): Make sure there is a trailing space after the
-	instruction.
-	(OP_6200): Fix tracing info.
-
-	* Makefile.in (run): Add dependencies on libbfd.a and
-	libiberity.a.
-
-Wed Sep 18 09:13:25 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* d10v_sim.h (DEBUG_INSTRUCTION): New debug value to include line
-	numbers and function names in debug trace.
-	(DEBUG): If not defined, set to DEBUG_TRACE, DEBUG_VALUES, and
-	DEBUG_LINE_NUMBER. 
-	(SIG_D10V_{STOP,EXIT}): Values to represent the stop instruction
-	and exit system call trap being executed.
-
-	* interp.c (sim_stop_reason): Set exit code correctly for stop
-	instruction and exit system call trap.
-
-	* configure.in (--enable-sim-cflags): Remove trace case.
-	(--enable-sim-debug): New switch to set the debug values.
-	* configure: Regenerate.
-
-	* simops.c (trace_{input,output}_func): Rename from
-	trace_{input,output}.
-	(trace_{input,output}): Call trace_{input,output}_func if
-	d10v_debug is non-zero.
-	(SIZE_INSTRUCTION): Cut down to 8.
-	(SIZE_OPERANDS): Cut down to 18.
-	(SIZE_LOCATION): New value for size of line number, function name
-	field.
-	(init_text_p,text{,_start,_end}): New static variables for
-	printing line number and function name.
-	(exec_bfd): New external that run.c sets.
-	(trace_input_func): Print line number and function name if
-	available and if desired.
-	(OP_4E09): Don't print out DBT message.
-	(OP_5FE0): Set exception field to SIG_D10V_STOP.
-	(OP_5F00): Set exception field to SIG_D10V_EXIT.	
-
-Sat Sep 14 22:18:43 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* interp.c (do_2_short): If the instruction encodes jump->ins,
-	don't do the second instruction if the jump succeeds.
-
-Fri Sep 13 22:35:19 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* simops.c (OP_5F00): Use unknown traps to print all GPRs,
-	accumulators, PC, and F0/F1/C flags.
-
-Thu Sep 12 12:50:11 1996  Mark Alexander  <marka@cygnus.com>
-
-	* simops.c (OP_5F00): Fix problems with system calls.
-
-Thu Sep 12 12:19:28 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* simops.c (OP_5F00): Correct tracing information for trap.
-
-Wed Sep 11 18:55:50 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* Makefile.in (CSEARCH): Correctly find opcodes directory.
-
-Mon Sep  9 13:27:26 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* simops.c (trace_output): Properly align accumulator output.
-	(OP_3{0,2,4}00): Properly parenthesize test expression.  Add error
-	if shift count is too high.
-	(OP_4E{00,02,04,20,22,40,42}): Make tests agree with book.
-	(OP_4E09): Make cpfg properly trace the input flags.
-	(op_types): Add OP_FLAG_OUTPUT.
-	(trace_{input,output}): Support OP_FLAG_OUTPUT.
-	(OP_31000000): This ld2w varient is a 16-bit memory reference, not
-	an 8-bit memory reference instruction for tracing purposes.
-	(OP_201): Addi needs to set the carry.
-
-Fri Sep  6 17:56:17 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* simops.c (OP_2600, OP_2601): Changed min and max comparisons
-	to use signed register values.
-
-Wed Sep  4 11:35:17 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* d10v_sim.h (DEBUG_*): Add bit flags for controlling debug
-	output.
-	(_ins_type): New enumeration to specify which container an
-	instruction is in, and whether it is part of a parallel operation.
-	(_state): Add ins_type field.
-	({,u}int{8,16,32,64}): Use limits.h to size the appropriate types.
-	(ins_type_counters): Counters for the various instruction types.
-	({left,right}_nops): Counters for the number of nops in each
-	container.
-	(d10v_debug): New variable to indicate whether debugging is turned
-	on.
-
-	* simops.c: (all functions): Change all #ifdef DEBUG code so that
-	the input and output values can be traced, along with the
-	instruction type.  Make the -t option enable tracing.
-	(all functions): Change printf calls to use the printf_filtered
-	function in the callback table.
-
-	* interp.c (_leftright): New enumeration to say whether 2 short
-	instructions are done left first or right first.
-	(do_{long,2_short,parallel}): Indicate in the machine state which
-	type of instruction this is.  Count each of the types of
-	instructions executed.
-	(sim_size): Only print the memory sizes if DEBUG_MEMSIZE debug
-	flag is set.
-	(sim_resume): Pass left/right indication to do_2_short.
-	(all functions): Change printf calls to use the printf_filtered
-	function in the callback table.
-	(sim_trace): Turn on debug flag if DEBUG was defined, and call
-	sim_resume.
-	(sim_info): Print out statistics on instructions.
-	(sim_{trace,create_inferior}): Eliminate extraneous output unless
-	debugging.
-	(sim_open): If args == -t and DEBUG was defined, set d10v_debug.
-	Only initialize the hash table the first time sim_open is called.
-
-	* Makefile.in: Make objects depend on d10v_sim.h.
-	({,SIM_}CFLAGS): Include configure dependent switches.  Setting
-	CFLAGS does not override host/target defines or SIM_CFLAGS.
-	(CC_FOR_BUILD,gencode): Use CC_FOR_BUILD to compile gencode.
-	(run): By default, the math library is not needed to be linked
-	in.
-	({BFD,LIBIBERTY}_LIB): Define as variables so they can be
-	overridden.
-	(VPATH): Don't set to anything but @srcdir@ to work with non-GNU
-	makes.
-	({run,callback}.o): Provide explicit paths to their appropriate
-	source directories.
-	(gencode{,.o},d10v-opc.o): Split compilation into creating object
-	and linking.  Instead of linking in libopcodes.a, just compile
-	d10v-opc.o directly to handle canadian cross.
-	(CSEARCH): Add opcodes directory.
-
-	* configure.in (--enable-sim-cflags): New switch to allow user to
-	set the defaults.
-	(CC_FOR_BUILD): Deal with canadian crosses.
-	* configure: Regenerate.
-
-Wed Sep 04 04:45:34 1996  Mark Alexander  <marka@cygnus.com>
-
-	* simops.c: Include correct syscall.h for d10v, not host's.
-	Fix #ifdef SYS_stat.
-
-Tue Sep  3 14:00:04 1996  Michael Meissner  <meissner@tiktok.cygnus.com>
-
-	* simops.c (OP_5F00): Wrap all SYS_xxx traps with #ifdef.
-	Add trap 2 to be printf and trap 3 to be putchar.
-
-Wed Aug 28 21:42:34 1996  Mark Alexander  <marka@cygnus.com>
-
-	* Makefile.in, d10v_sim.h, interp.c, simops.c: Add support
-	for low-level system calls.
-
-Wed Aug 28 17:33:19 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* Makefile.in, d10v_sim.h, interp.c: Fix byte-order problems.
-
-Mon Aug 26 18:30:28 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* d10v_sim.h (SEXT32): Added.
-	* interp.c: Commented out printfs.
-	* simops.c:  Fixed error in sb and st2w. 
-
-Thu Aug 15 13:30:03 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* Makefile.in, d10v_sim.h, interp.c, simops.c: Added remaining
-	DSP instructions.  Added modulo addressing.
-
-Sun Aug 11 12:57:15 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* Makefile.in, d10v_sim.h, interp.c, simops.c: Snapshot.
-
-Fri Aug  2 17:44:24 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* d10v_sim.h, simops.c: Snapshot.
-
-Thu Aug  1 17:05:24 1996  Martin M. Hunt  <hunt@pizza.cygnus.com>
-
-	* ChangeLog, Makefile.in, configure, configure.in, d10v_sim.h, 
-	gencode.c, interp.c, simops.c: Created.
-