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[/] [or1k/] [trunk/] [gdb-5.0/] [sim/] [d10v/] [ChangeLog] - Blame information for rev 1778

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Tue Apr 18 16:26:41 2000  Andrew Cagney  
 
        * interp.c (sim_resume): Deliver SIGILL.
        (lookup_hash): Do not print SIGILL message.
 
Tue Feb 22 18:24:56 2000  Andrew Cagney  
 
        * Makefile.in (SIM_EXTRA_CFLAGS): Define SIM_HAVE_ENVIRONMENT.
        * interp.c (sim_set_trace): Replace sim_trace.  Enable tracing.
 
Tue Feb  8 17:41:12 2000  Andrew Cagney  
 
        * d10v_sim.h (SIG_D10V_BUS): Define.
 
        * simops.c (address_exception): Delete function.
        (OP_30000000, OP_6401, OP_6001, OP_6000, OP_32010000, OP_31000000,
        OP_6601, OP_6201, OP_6200, OP_33010000, OP_34000000, OP_6800,
        OP_6C1F, OP_6801, OP_6C01, OP_36010000, OP_35000000, OP_6A00,
        OP_6E1F, OP_6A01, OP_6E01, OP_37010000): Replace call to
        address_exception with code that sets SIG_D10V_BUS.
 
        * interp.c (sim_resume): When SIGBUS or SIGSEGV, deliver a bus
        error to the simulator before resuming execution.
        (sim_trace): Check stop reason and use that to determine sim_trace
        return value.
        (sim_stop_reason): For SIG_D10V_BUS return a SIGBUS / SIGSEGV
        sigrc.
 
Tue Jan 18 16:07:42 MST 2000    Diego Novillo 
 
        * interp.c (sim_create_inferior): Change internal initial value for
        DMAP2 to 0x2000.
 
Mon Jan  3 02:06:07 2000  Andrew Cagney  
 
        * interp.c (lookup_hash): Stop the update of the PC when there was
        an illegal instruction exception.
 
Mon Jan  3 00:14:33 2000  Andrew Cagney  
 
        * simops.c (address_exception): New function.
        (OP_30000000, OP_6401, OP_6001, OP_6000, OP_32010000, OP_31000000,
        OP_6601, OP_6201, OP_6200, OP_33010000, OP_34000000, OP_6800,
        OP_6C1F, OP_6801, OP_6C01, OP_36010000, OP_35000000, OP_6A00,
        OP_6E1F, OP_6A01, OP_6E01, OP_37010000): For "ld", "ld2w", "st"
        and "st2w" check that the address is aligned.
 
1999-12-30  Chandra Chavva   
 
        * d10v_sim.h (INC_ADDR): Added code to assign
        proper address for loads with predec operations.
 
1999-11-25  Nick Clifton  
 
        * simops.c (OP_4E0F): New function: Simulate new bit pattern for
        cpfg instruction.
 
Fri Oct 29 18:34:28 1999  Andrew Cagney  
 
        * simops.c (move_to_cr): Don't allow user to set PSW.DM in either
        DPSW and BPSW.
 
Thu Oct 28 01:26:18 1999  Andrew Cagney  
 
        * simops.c (OP_5F20): Use SET_HW_PSW when updating PSW.
        (PSW_HW_MASK): Declare.
 
        * d10v_sim.h (move_to_cr): Add ``psw_hw_p'' parameter.
        (SET_CREG, SET_PSW_BIT): Update.
        (SET_HW_CREG, SET_HW_PSW): Define.
 
Sun Oct 24 21:38:04 1999  Andrew Cagney  
 
        * interp.c (sim_d10v_translate_dmap_addr): Fix extraction of IOSP
        for DMAP3.
 
Sun Oct 24 16:04:16 1999  Andrew Cagney  
 
        * interp.c (sim_d10v_translate_addr): New function.
        (xfer_mem): Rewrite.  Use sim_d10v_translate_addr.
        (map_memory): Make INLINE.
 
Sun Oct 24 13:45:19 1999  Andrew Cagney  
 
        * interp.c (sim_d10v_translate_dmap_addr): New function.
        (dmem_addr): Rewrite. Use sim_d10v_translate_dmap_addr.  Change
        offset parameter to type uint16.
        * d10v_sim.h (dmem_addr): Update declaration.
 
Sun Oct 24 13:07:31 1999  Andrew Cagney  
 
        * interp.c (imap_register, set_imap_register, dmap_register,
        set_imap_register): Use map_memory.
        (DMAP): Update.
        (sim_create_inferior): Initialize all DMAP registers.  NOTE that
        DMAP2, in internal memory mode, is set to 0x0000 and NOT
        0x2000. This is consistent with the older d10v boards.
 
Sun Oct 24 11:22:12 1999  Andrew Cagney  
 
        * interp.c (sim_d10v_translate_imap_addr): New function.
        (imem_addr): Rewrite.  Use sim_d10v_translate_imap_addr.
        (last_from, last_to): Declare.
 
Sun Oct 24 01:21:56 1999  Andrew Cagney  
 
        * d10v_sim.h (struct d10v_memory): Define.  Support very long
        memories.
        (struct _state): Replace imem, dmem and umem by mem.
        (IMAP_BLOCK_SIZE, DMAP_BLOCK_SIZE, SEGMENT_SIZE, IMEM_SEGMENTS,
        DMEM_SEGMENTS, UMEM_SEGMENTS): Define.
 
        * interp.c (map_memory): New function.
        (sim_size, xfer_memory, imem_addr, dmem_addr): Update.
        (UMEM_SEGMENTS): Moveed to "d10v_sim.h".
        (IMEM_SIZEDMEM_SIZE): Delete.
 
Sat Oct 23 20:06:58 1999  Andrew Cagney  
 
        * interp.c: Include "sim-d10v.h".
        (imap_register, set_imap_register, dmap_register,
        set_dmap_register, spi_register, spu_register, set_spi_register,
        set_spu_register): New functions.
        (sim_create_inferior): Update.
        (sim_fetch_register, sim_store_register): Rewrite.  Use enums
        defined in sim-d10v.h.
 
        * d10v_sim.h (DEBUG_MEMORY): Define.
        (IMAP0, IMAP1, DMAP, SET_IMAP0, SET_IMAP1, SET_DMAP): Delete.
 
Sat Oct 23 18:41:18 1999  Andrew Cagney  
 
        * interp.c (sim_open): Allow a debug value to be passed to the -t
        option.
        (lookup_hash): Don't exit on an illegal instruction.
        (do_long, do_2_short, do_parallel): Check for failed instruction
        lookup.
 
Mon Oct 18 18:03:24 MDT 1999    Diego Novillo 
 
        * simops.c (OP_3220): Fix trace output for illegal accumulator
        message.
 
1999-09-14  Nick Clifton  
 
        * simops.c: Disable setting of DM bit in PSW.
 
Wed Sep  8 19:34:55 MDT 1999    Diego Novillo 
 
        * 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  
 
        * 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  
 
        * 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  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
1999-05-08  Felix Lee  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
1999-04-02  Keith Seitz  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * interp.c (xfer_mem): Missing break, instruction memory case
        flowed into unified memory case.
 
Wed Sep 30 10:14:18 1998  Nick Clifton  
 
        * 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  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Sun Apr 26 15:31:55 1998  Tom Tromey  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
        * config.in: Ditto.
 
Sun Apr 26 15:20:23 1998  Tom Tromey  
 
        * acconfig.h: New file.
        * configure.in: Reverted change of Apr 24; use sinclude again.
 
Fri Apr 24 14:16:40 1998  Tom Tromey  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
        * config.in: Ditto.
 
Fri Apr 24 11:20:06 1998  Tom Tromey  
 
        * configure.in: Don't call sinclude.
 
Fri Apr 24 11:04:46 1998  Andrew Cagney  
 
        * 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  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Wed Apr  1 12:59:17 1998  Andrew Cagney  
 
        * 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, ): Trace R0, R1 not REGn.
        (OP_5F00, ): 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  
 
        * configure.in (SIM_AC_OPTION_WARNINGS): Add.
        configure: Re-generate.
 
Fri Mar 27 16:15:52 1998  Andrew Cagney  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Wed Mar 25 12:35:29 1998  Andrew Cagney  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Wed Mar 18 12:38:12 1998  Andrew Cagney  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Tue Feb 17 12:38:42 1998  Andrew Cagney  
 
        * interp.c (sim_store_register, sim_fetch_register): Pass in
        length parameter.  Return -1.
 
Mon Oct 27 14:43:33 1997  Fred Fish  
 
        * (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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Sat Jan 31 18:15:41 1998  Andrew Cagney  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Sun Jan 25 22:23:01 1998  Michael Meissner  
 
        * interp.c (sim_stop_reason): Exit status is now in r0, not r2.
 
Sat Jan 24 19:00:30 1998  Michael Meissner  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Mon Dec 15 23:17:11 1997  Andrew Cagney  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
        * config.in: Ditto.
 
Tue Dec  9 10:28:31 1997  Andrew Cagney  
 
        * 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  
 
        * simops.c (OP_5F00): From Martin Hunt . Change
        reserved trap from 0 to 15. Add trap emulation code for 0-14.
 
        * interp.c (sim_resume): From Martin Hunt . 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  
 
        * 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  
 
        * 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  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Thu Dec  4 16:51:02 1997  Andrew Cagney  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * simops.c (OP_1000): For "sub2w", compute carry by comparing
        inputs.
 
Mon Nov 17 20:57:21 1997  Andrew Cagney  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * simops.c (OP_6401): postdecrement on r15 is OK, remove exception.
        (OP_6601): Ditto.
 
Fri Oct  3 09:28:00 1997  Andrew Cagney  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Sat Sep 27 12:51:34 1997  Fred Fish  
 
        * 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  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Tue Sep 23 11:04:38 1997  Andrew Cagney  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Mon Sep 22 11:46:20 1997  Andrew Cagney  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Fri Sep 19 17:45:25 1997  Andrew Cagney  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Mon Sep 15 17:36:15 1997  Andrew Cagney  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Wed Sep 10 22:30:24 1997  Martin M. Hunt  
 
        * 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  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Wed Aug 27 18:13:22 1997  Andrew Cagney  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
        * config.in: Ditto.
 
Tue Aug 26 10:37:49 1997  Andrew Cagney  
 
        * 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  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
        * config.in: Ditto.
 
Mon Aug 25 15:39:29 1997  Andrew Cagney  
 
        * interp.c (sim_open): Add ABFD argument.
 
Tue May 20 10:14:45 1997  Andrew Cagney  
 
        * interp.c (sim_open): Add callback argument.
        (sim_set_callbacks): Remove SIM_DESC argument.
 
Thu Apr 24 00:39:51 1997  Doug Evans  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Tue Apr 22 10:29:23 1997  Doug Evans  
 
        * interp.c (sim_open): Undo patch to add -E support.
 
Fri Apr 18 13:39:01 1997  Andrew Cagney  
 
        * interp.c (sim_stop): New function.
 
Thu Apr 17 02:42:00 1997  Doug Evans  
 
        * 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  
 
        * 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  
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
        * config.in: Ditto.
 
Wed Apr  2 15:06:28 1997  Doug Evans  
 
        * interp.c (sim_open): New arg `kind'.
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Wed Apr  2 14:34:19 1997 Andrew Cagney 
 
        * configure: Regenerated to track ../common/aclocal.m4 changes.
 
Mon Mar 17 15:10:07 1997  Andrew Cagney  
 
        * configure: Re-generate.
 
Fri Mar 14 10:34:11 1997  Michael Meissner  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * interp.c (xfer_mem): Change unified memory to 0x0.
 
Thu Nov 28 20:42:56 1996  Michael Meissner  
 
        * simops.c (OP_3E01): Fix tracing information.
        (OP_300{0,1}): Do not propigate sign.
 
Mon Nov 25 19:47:40 1996  Doug Evans  
 
        * config.in (WORDS_BIGENDIAN): Add.
        * configure: Regenerated.
        * d10v_sim.h: #include "config.h"
 
Sat Nov 23 09:34:50 1996  Michael Meissner  
 
        * gencode.c (write_opcodes): Eliminate warnings when generated
        table.c is compiled.
 
Wed Nov 20 19:41:40 1996  Michael Meissner  
 
        * 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  
 
        * 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  if present.
 
Fri Nov  8 16:19:55 1996  Martin M. Hunt  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * simops.c (OP_5F00): Add support for time() system call.
 
Wed Sep 25 16:31:41 1996  Michael Meissner  
 
        * 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  
 
        * 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  
 
        * interp.c (sim_create_inferior): Reinitialize State every time
        sim_create_inferior() is called.
 
Thu Sep 19 21:38:20 1996  Michael Meissner  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * simops.c (OP_5F00): Fix problems with system calls.
 
Thu Sep 12 12:19:28 1996  Michael Meissner  
 
        * simops.c (OP_5F00): Correct tracing information for trap.
 
Wed Sep 11 18:55:50 1996  Michael Meissner  
 
        * Makefile.in (CSEARCH): Correctly find opcodes directory.
 
Mon Sep  9 13:27:26 1996  Michael Meissner  
 
        * 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  
 
        * 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  
 
        * 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  
 
        * simops.c: Include correct syscall.h for d10v, not host's.
        Fix #ifdef SYS_stat.
 
Tue Sep  3 14:00:04 1996  Michael Meissner  
 
        * 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  
 
        * 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  
 
        * Makefile.in, d10v_sim.h, interp.c: Fix byte-order problems.
 
Mon Aug 26 18:30:28 1996  Martin M. Hunt  
 
        * 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  
 
        * 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  
 
        * Makefile.in, d10v_sim.h, interp.c, simops.c: Snapshot.
 
Fri Aug  2 17:44:24 1996  Martin M. Hunt  
 
        * d10v_sim.h, simops.c: Snapshot.
 
Thu Aug  1 17:05:24 1996  Martin M. Hunt  
 
        * ChangeLog, Makefile.in, configure, configure.in, d10v_sim.h,
        gencode.c, interp.c, simops.c: Created.
 
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