import gdb-1999-09-13 snapshot

[thirdparty/binutils-gdb.git] / sim / d10v / ChangeLog

Wed Sep  8 19:34:55 MDT 1999    Diego Novillo <dnovillo@cygnus.com>

        * simops.c (op_types): Added new memory indirect type OP_MEMREF3.
        (trace_input_func): Added support for OP_MEMREF3.
        (OP_32010000): New instruction ld.
        (OP_33010000): New instruction ld2w.
        (OP_5209): New instruction sac.
        (OP_4209): New instruction sachi.
        (OP_3220): New instruction slae.
        (OP_36010000): New instruction st.
        (OP_37010000): New instruction st2w.

1999-09-09  Stan Shebs  <shebs@andros.cygnus.com>

        * interp.c (old_segment_mapping): New global.
        (xfer_mem): Change the default segment mapping to be the way
        that Mitsubishi prefers, but use the previous mapping if
        old_segment_mapping is true.
        (sim_open): Add an option -oldseg to get the old mapping.
        (sim_create_inferior): Init mapping registers based on the
        value of old_segment_mapping.

1999-09-07  Nick Clifton  <nickc@cygnus.com>

        * simops.c (OP_6601): Do not write back decremented address if
        either of the destination registers was the same as the address
        register. 
        (OP_6201): Do not write back incremented address if either of the
        destination registers was the same as the address register. 

Thu Sep  2 18:15:53 1999  Andrew Cagney  <cagney@b1.cygnus.com>

        * configure: Regenerated to track ../common/aclocal.m4 changes.

1999-05-08  Felix Lee  <flee@cygnus.com>

        * configure: Regenerated to track ../common/aclocal.m4 changes.
        
1999-04-02  Keith Seitz  <keiths@cygnus.com>

        * interp.c (ui_loop_hook_counter): New global (when NEED_UI_LOOP_HOOK
        defined).
        (sim_resume): If the counter has expired, call the ui_loop_hook,
        if defined.
        (UI_LOOP_POLL_INTERVAL): Define. Used to tweak the frequency of
        ui_loop_hook calls.
        * Makefile.in (SIM_EXTRA_CFLAGS): Include NEED_UI_LOOP_HOOK.

Wed Mar 10 19:32:13 1999  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.

Wed Mar 10 19:32:13 1999  Martin M. Hunt  <hunt@cygnus.com>

        * simops.c (OP_5F00): Ifdef SYS_stat case because
        not all systems have it defined.

1999-01-26  Jason Molenda  (jsm@bugshack.cygnus.com)

        * simops.c (OP_5607): Correct saturation comparison/assignment.
        (OP_1201, OP_1203, OP_17001200, OP_17001202, 
         OP_2A00, OP_2800, OP_2C00, OP_3200, OP_3201, 
         OP_1001, OP_1003, OP_17001000, OP_17001002): Ditto.

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.