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2002-07-13  Andrew Cagney  

        * cpu.h: Mark file obsolete.

        * sim-main.h,  sim-calls.c, engine.c, cpu.c, alu.h: Ditto.

        * dc-short, ic-d30v, d30v-insns, Makefile.in: Ditto.

2002-06-16  Andrew Cagney  

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

2000-07-05  Nick Clifton  

        * d30v-insns: Change minimum loop size limit to 0x10.

Tue May 23 21:39:23 2000  Andrew Cagney  

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

2000-04-12  Frank Ch. Eigler  

        * cpu.h (GPR_CLEAR): New macro.

        (GPR_SET): Removed macro.

Thu Sep  2 18:15:53 1999  Andrew Cagney  

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

Wed Sep  1 11:38:21 1999  Andrew Cagney  

        * d30v-insns: Cast CIA to LONG in printfs.

Tue Aug 31 01:32:22 1999  Andrew Cagney  

        * cpu.h (unqueue_writes): Add declaration.

1999-05-27  Michael Meissner  

        * d30v-insns (do_repeat): Print a warning if a REPEAT or REPEATI

        instruction loop is too small.

1999-05-08  Felix Lee  

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

1999-03-16  Martin Hunt  

        From Frank Ch. Eigler  

        * cpu.h (mvtsys_left_p): New flag for MVTSYS instruction history.

        * d30v-insns (mvtsys): Set this flag instead of left_kills_right_p.

        (do_sath): Detect MVTSYS by new flag.

        * engine.c (unqueue_writes): Detect MVTSYS by new flag.

        (do_2_short, do_parallel): Initialize new flag.

1999-02-26  Frank Ch. Eigler  

        * tconfig.in (SIM_HANDLES_LMA): Make it so.

1999-01-12  Frank Ch. Eigler  

        * engine.c (unqueue_writes): Make PSW conflict resolution code

        conditional - disable it for MVTSYS || insn case.

1999-01-11  Frank Ch. Eigler  

        * d30v-insns (do_sath): Drain PSW write queue before PSW_S_FLAG

        update.

        * engine.c (unqueue_writes): Make non-static.  Remove PSW_V/VA

        special case.

        (do_parallel): Don't drain PSW write queue for MVTSYS || insn.

1999-01-07  Frank Ch. Eigler  

        * d30v-insns (do_ld2h): Sign-extend loaded half-words.

1999-01-05  Frank Ch. Eigler  

        * d30v-insns (do_ld2h): Read memory in word units.

        (do_ld4bh): Ditto.  Correct sign extension.

        (do_ld4bhu): Ditto.

        (do_st2h): Write memory in word units.

        (do_st4hb): Ditto.

        (st4hb): Correct mnemonic in igen template.

1998-12-08  Frank Ch. Eigler  

        * d30v-insns: (do_ld2h): Don't update R0 nor R1 for double-word insn.

        (do_ld2w): Ditto.

        (do_ld4bh): Ditto.

        (do_ld4bhu): Ditto.

        (do_mulx2h): Ditto.

1998-12-03  Frank Ch. Eigler  

        * d30v-insns (do_repeat): Don't set RP for repeat count 1.

1998-12-03  Frank Ch. Eigler  

        * d30v-insns (do_src): Treat shift count -32 naturally instead of

        producing zero result.

1998-11-22  Frank Ch. Eigler  

        * d30v-insns (do_src): Limit SRC shift count to -32 .. 31.

1998-11-16  Frank Ch. Eigler  

        * d30v-insns (dbt): Defer PSW/DPSW update with new DID_TRAP code 2.

        * engine.c (unqueue_writes): Perform DBT processing on PSW/DPSW here.

1998-11-12  Frank Ch. Eigler  

        * cpu.h (_sim_cpu): Removed is_delayed_call field, and associated

        RPT_IS_CALL macro.

        * sim-calls.c (sim_create_inferior): Don't initialize is_delayed_call.

        * d30v-insns (do_dbra): Don't clear RPT_IS_CALL. (do_dbrai): Ditto.

        (do_djmp): Ditto. (do_djmpi): Ditto. (do_repeat): Ditto.

        * d30v-insns (do_dbsr): Don't set RPT_IS_CALL, but set R62 instead.

        (do_dbsri): Ditto. (do_djsr): Dito. (do_djsri): Ditto.

        * engine.c (sim_engine_run): Remove conditional setting of R62 based

        upon RPT_IS_CALL.

1998-11-08  Frank Ch. Eigler  

        * sim-calls.c (sim_open): Add dummy memory range over control

        register region (0x40000000..0x4000FFFF).

1998-11-06  Frank Ch. Eigler  

        * d30v-insns (do_mvfacc): Use loop to limit shift count to 63 .. 0.

Tue Oct 13 11:01:16 1998  Frank Ch. Eigler  

        * d30v-insns (do_sra,do_srah,do_srl,do_srlh): Make shift

        count -32 to produce zero result.

        (do_src): Ditto for shift count == -64.

Mon Oct 12 23:04:11 1998  Frank Ch. Eigler  

        * d30v-insns (ROT): Use 0x1f bit mask for rotate count masking.

        (do_sra,do_srl): Use loop to limit shift count to -32 .. 31.

        (do_srah,do_srlh): Use loop to limit shift count to -32 .. 31.

        (sra2h,srl2h): Use loop to limit shift count to -16 .. 15.

        (do_src): Use loop to limit shift count to -64 .. 63.

Fri Oct  9 16:46:52 1998  Doug Evans  

        * sim-calls.c (get_insn_name): New fn.

        (sim_open): Initialize CPU_INSN_NAME,CPU_MAX_INSNS.

        * sim-main.h (MAX_INSNS,INSN_NAME): Delete.

Mon Sep 28 10:43:28 1998  Frank Ch. Eigler  

        * d30v-insns (do_sra,do_srah,do_srl,do_srlh,ROT,do_src): Use

        correct MSB bit numbers for sign extension masks.

Fri Sep 25 17:32:27 1998  Frank Ch. Eigler  

        * engine.c (do_parallel): Unqueue writes if MU instruction was

        a MVTSYS, as identified by its left_kills_right_p side-effect.

Fri Sep 25 12:31:34 1998  Frank Ch. Eigler  

        * d30v-insns (do_sra,do_srah,do_srl,do_srlh,ROT,do_src): Mask

        shift/rotate counts to number of bits in width of operand; no

        longer saturate at maxima.

Tue Jul 14 18:39:23 1998  Frank Ch. Eigler  

        * cpu.h (left_kills_right_p): New flag for non-branch instructions

        that, when executed in left slot of a -> sequential pair, kill the

        right slot.

        * d30v-insns (mvtsys): Set flag for PSW/PSWh/PSWl/FLAG operands.

        * engine.c (do_2_short): Respect flag.

Thu Jun  4 16:48:58 1998  David Taylor  

        * d30v-insns (do_trap): don't save the bPSW and PSW based on

        current values because an instruction done in parallel with

        the trap might change them, instead set a flag do that

        unqueue_writes will take care of it.

        * engine.c (unqueue_writes): finish trap handling

        * cpu.h (_sim_cpu): add new field did_trap and a macro DID_TRAP

        to make use of it; set by do_trap, tested and cleared by

        unqueue_writes.

Tue May 19 16:07:04 1998  Frank Ch. Eigler  

        * engine.c (unqueue_writes): Suppress the all enqueued writes to

        the same flags in PSW except the last.

Fri May 15 11:38:59 1998  Frank Ch. Eigler  

        * d30v-insns (RETI): Correct instruction spelling to "reit".

Thu May 14 09:34:20 1998  Frank Ch. Eigler  

        * d30v-insns (dbt): Handle DBT at end of repeat block.

        (do_trap, dbt): Clear PSW_RP if at end of repeat block.

Thu May 14 07:41:41 1998  Frank Ch. Eigler  

        * engine.c (sim_engine_run): Trigger DDBT based on previous PC,

        instead of next PC.

Wed May 13 11:03:40 1998  Frank Ch. Eigler  

        * engine.c (sim_engine_run): Move DDBT handling after instruction

        decode/execute stage.

Tue May 12 12:14:53 1998  Frank Ch. Eigler  

        * d30v-insns (do_sat*): Correct "saturate to 0 bits" patch to

        properly handle negative saturation inputs.

Tue May 12 11:11:26 1998  Frank Ch. Eigler  

        * engine.c (sim_engine_run): Decrement RPT_C only under more

        restricted conditions.

Mon May 11 17:33:46 1998  Frank Ch. Eigler  

        * d30v-insns (do_sat*): Make "saturate to 0 bits" pass through data

        unchanged.

Mon May 11 16:27:04 1998  Frank Ch. Eigler  

        * engine.c (sim_engine_run): Implement DDBT (debugger debug trap)

        functionality.

Fri May  8 16:44:19 1998  Frank Ch. Eigler  

        * d30v-insns (do_trap): Set bPC to RPT_S if trap is last

        instruction in repeat block.

        (bsr*/jsr*): Set R62 (LINK) to RPT_S if subroutine branch

        is last instruction in repeat block.

Fri May  8 11:06:50 1998  Frank Ch. Eigler  

        * d30v-insns (do_sath): Query/update F4/PSW_S using proper flag

        macro.

        * cpu.h (PSW_S_FLAG): New flag number for PSW_S status bit.

Wed May  6 19:40:56 1998  Doug Evans  

        * sim-main.h (INSN_NAME): New arg `cpu'.

Fri May  1 14:24:30 1998  Andrew Cagney  

        * d30v-insns: Fix parameter list to sim_engine_abort.

Thu Apr 30 14:28:00 1998  Fred Fish  

        * d30v-insns (do_sath): Add additional argument that determines

        whether or not the F4 (PSW_S) bit in the PSW is updated.

        (SAT2H): Do not update PSW_S bit.

        (SATHp): Do update PSW_S bit.

Tue Apr 28 23:36:00 1998  Fred Fish  

        * d30v-insns (SRAHp, SRLHp):  Immediate values are signed 6 bit

        values, not 5 bit values.

Wed Apr 29 12:57:55 1998  Frank Ch. Eigler  

        * d30v-insns (do_incr): Check modular arithmetic limits after

        postincrement/postdecrement, rather than before, to match

        erroneous hardware behavior.

Tue Apr 28 18:33:31 1998  Geoffrey Noer  

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

Mon Apr 27 19:42:00 1998  Fred Fish  

        * d30v-insns (do_trap): Clear all bits in PSW except SM and DB.

Mon Apr 27 14:55:00 1998  Fred Fish  

        * d30v-insns (do_mulx2h): Low order results go in ra+1, high

        order in ra.

Mon Apr 27 14:42:00 1998  Fred Fish  

        * d30v-insns (do_mulx2h): Rewrite to do proper 32 bit signed

        multiply of high and low fields from operands.

Sun Apr 26 15:31:55 1998  Tom Tromey  

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

        * config.in: Ditto.

Sun Apr 26 15:20:20 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 11:20:00 1998  Tom Tromey  

        * configure.in: Don't call sinclude.

Wed Apr 22 21:23:00 1998  Fred Fish  

        * ic-d30v (RbU, RcU): Unsigned versions of Rb and Rc.

        * d30v-insns (MVTACC): Use new RbU and RcU macros.

Wed Apr 22 20:52:00 1998  Fred Fish  

        * ic-d30v (RbHU,RbLU): Unsigned versions of RbH and RbL.

        * d30v-insns (SRL2H): Use new RbHU and RbLU macros instead of

        RbH and RbL.

Mon Apr 13 16:59:00 1998  Fred Fish  

        * d30v-insns (do_srl): Avoid undefined behavior of host compiler

        when shifting left by more than 31 bits.

Tue Apr  7 18:09:00 1998  Fred Fish  

        * engine.c (sim_engine_run): Remove at_loop_end variable. Add

        rp_was_set and rpt_c_was_nonzero variables.  Major restructuring of

        code before and after instruction execution to properly handle state

        of the RP bit in the PSW, the value in RPT_C, and other loop related

        problems.

Sat Apr  4 20:36:25 1998  Andrew Cagney  

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

Fri Apr  3 15:26:00 1998  Fred Fish  

        * d30v-insns (do_trap): Use offset from EIT_VB rather than hardcoded

        BASE_ADDRESS constant.

        * cpu.h (BASE_ADDRESS): Remove constant not used any longer.

Fri Apr  3 14:42:00 1998  Fred Fish  

        * cpu.h (EIT_VB): Define macro to access EIT_VB register.

        (EIT_VB_DEFAULT): Define value of EIT_VB register after reset.

        * sim-calls.c (sim_create_inferior): Set EIT_VB to EIT_VB_DEFAULT.

Tue Mar 31 19:00:00 1998  Fred Fish 

        * d30v-insns (do_dbrai): RPT_S is cia plus pcdisp rather than

        just pcdisp.

Mon Mar 30 20:30:00 1998  Fred Fish  

        * engine.c (sim_engine_run): Add at_loop_end.  Rework end of loop

        code to use this to both reset PSW_RP when needed and to set PC

        to RPT_S for another pass through the loop.

Mon Mar 30 16:12:00 1998  Fred Fish  

        * engine.c (sim_engine_run): Change code that handles RPT_* regs

        and PSW_RP bit in PSW so that PSW_RP is always set while executing

        the loop and loop terminates upon completion of the pass for which

        RPT_C is zero.  More closely follow logic in architecture manual.

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.

Thu Mar 19 00:25:43 1998  Andrew Cagney  

        * sim-calls.c (sim_open): Move memory-region commands back to

        before the call to sim_parse_args.

        (d30v_option_handler): Implement extmem-size option using

        memory-delete and memory-region commands.

        * sim-calls.c (d30v_option_handler): Use ANSI-C argument list,

        correct number and type of arguments.

Wed Mar 18 12:38:12 1998  Andrew Cagney  

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

Wed Mar 11 13:56:32 1998  Andrew Cagney  

        * alu.h (IMEM, MEM, STORE): Replace sim_core_*_map with exec_map,

        read_map and write_map resp.

        * cpu.c (d30v_read_mem, d30v_write_mem): Ditto.

Mon Mar  2 13:34:08 1998  Fred Fish  

        * d30v-insns (do_repeat): Abort repeat instructions that have

        a repeat count of zero.

Fri Feb 27 18:44:12 1998  Doug Evans  

        * sim-calls.c (sim_open): Update call to sim_add_option_table.

Thu Feb 26 18:34:31 1998  Andrew Cagney  

        * sim-calls.c (sim_info): Delete.

Wed Feb 25 14:44:58 1998  Michael Meissner  

        * d30v-insns (mvtsys): If moving to EIT_VB register, and with

        valid bits.  Optimize code somewhat.

        * cpu.h (eit_vector_base_cr): New CR we need to special case.

        (EIT_VALID): Valid bits for EIT_VB register.

        * d30v-insns (mv{f,t}sys): When moving to/from PSWH, the value is

        in the low 16 bits of the register.

        * d30v-insns (do_sra): Use a common WRITE32_QUEUE to write back

        results.

        (do_sr{a,l}h): Do shift in 32 bits, only truncate when writing

        result back to the registers.

Tue Feb 24 18:09:52 1998  Fred Fish  

        * Makefile.in (tmp-igen): Use -G gen-zero-r0 option to force

        r0 to always be zero.

        * cpu.h (GPR_SET): Define.

Tue Feb 24 14:12:57 1998  Michael Meissner  

        * d30v-insns (do_sath): Do saturation in 32 bits, before

        converting to 16.

        (sat{,2h,z,hp}): Use imm_5, not imm to get proper zero extend.

        (do_sath_p): Delete, no longer used.

        (sathp): Call do_sath, not do_sath_p.

Mon Feb 23 15:55:14 1998  Michael Meissner  

        * d30v-insns (illegal,wrong_slot): Print \n after PC and before we

        call sim_engine_halt.

        (sr{a,l}hp): Implement missing instructions.

        (do_trap): Print high order PSW bits in human readable fashion.

        (do_{dbra{,i},dbsr{,i},djmp{,i},djsr{,i},repeat}): Set PSW bit RP.

        * alu.h (PSW_SET_QUEUE): New macro to set PSW bits.

        * engine.c (sim_engine_run): Check for RP bit being set, not RPT_C

        being > 0.  If RPT_C is decremented to 0, clear PSW RP bit.

Fri Feb 20 10:13:34 1998  Fred Fish  

        * cpu.h (BASE_ADDRESS): Change from 0xfffff000 to 0xfffff020.

Tue Feb 17 12:39:52 1998  Andrew Cagney  

        * sim-calls.c (sim_store_register, sim_fetch_register): Pass in

        length parameter.  Return -1.

Fri Feb  6 17:39:54 1998  Michael Meissner  

        * d30v-insns (do_dbrai): Correct typo, use shift, not comparison.

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.

Fri Jan 30 08:29:20 1998  Andrew Cagney  

        * engine.c (sim_engine_run): Add parameter nr_cpus.

Fri Jan 30 17:09:37 1998  Michael Meissner  

        * d30v-insns (jsrtzr): Check for register == 0, not != 0.

Wed Jan 21 17:52:04 1998  Andrew Cagney  

        * engine.c (do_stack_swap): Make type of new_sp unsigned.

Mon Jan 19 22:26:29 1998  Doug Evans  

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

Mon Jan  5 16:04:17 1998  Andrew Cagney  

        * sim-calls.c (sim_info): Call profile_print.

        * sim-main.h: Enable instruction profiling.

Thu Dec 18 12:21:38 1997  Michael Meissner  

        * alu.h (ALU{16,32}_END): Change setting PSW to only set the carry

        and overflow bits.  Don't look at the current value of PSW.

        (PSW_FLAG_SET_QUEUE): Only queue up setting the particular bit in

        question.  Don't look at the current value of PSW.

        * d30v-insns: All instructions that set the PSW, will only queue

        up the particular bits in question that were set by the

        instruction.  Don't look at the current value of PSW.

Wed Dec 17 11:41:44 1997  Michael Meissner  

        * cpu.h (PSW_VALID): Allow EA/DB to be set in the PSW.

        (DPSW_VALID): Like PSW_VALID, but it allows the DS bit to be set.

        * engine.c (trace_alu32): When changing BPSW/DPSW, print the

        special PSW bits.

        * d30v-insns (do_cmp_cc): Fix cmpps and cmpng.

        (do_cmp{,u}_cc): Print which cc value was used if not in switch

        statement.

        (do_cmpu_cc): Remove illegal cases CMPU{EQ,NE,PS,NG}.

        (mvtsys): When setting BPSW or DPSW, and with DPSW_VALID.

Tue Dec 16 18:17:26 1997  Michael Meissner  

        * d30v-insns (mulx2h): Add missing instruction.  Complain if

        register is not even.

        (do_{add,sub}h_ppp): Get correct high/low values.  Also correctly

        handle short immediates.

        (do_ld{2w,4bh}): Don't load r0 if ra == 0.

        * engine.c (d30v_interrupt_event): Remove unused variable

        (unqueue_writes): Ditto.

Mon Dec 15 23:17:11 1997  Andrew Cagney  

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

        * config.in: Ditto.

Sat Dec 13 23:40:17 1997  Michael Meissner  

        * cpu.h (_write{32,64}): New structures for keeping track of

        queued writes to registers.

        (_sim_cpu): Add _write{32,64} structures.  Make is_delayed_call

        unsigned32 also.

        (WRITE{32,64}*): New macros for queueing up writes to registers.

        * alu.h (ALU16_END): Take field that says whether we are setting

        the high or low half word.  Queue up changes to registers.

        (ALU32_END): Queue up changes to registers.

        (PSW_FLAG_SET_QUEUE): Like PSW_FLAG_SET, except queues it up.

        * sim-main.h (do_stack_swap): Remove declaration.

        * engine.c (do_stack_swap): Make static.

        (unqueue_writes): New function to unqueue all changes to 32 and 64

        bit registers in order.  Implement --trace-alu.  Reset high water

        marks for # of queued registers.  If PSW changed, possibly update

        stack pointer.

        (do_{long,2_short,parallel}): Unqueue register writes at the

        appropriate time.

        * d30v-insns: Modify all insns to queue changes to registers,

        rather than do them immediately so that parallel instructions get

        the right values for inputs.  Rewrite 16 bit operations to be done

        in terms of masked 32 bit registers.  Don't call do_stack_swap any

        more here.

Thu Dec 11 10:06:02 1997  Michael Meissner  

        * sim-calls.c (d30v_option_handler): Add support for --extmem-size

        to size external memory.

        (sim_open): Ditto.  Default if no --extmem-size option is 8 meg.

Wed Dec 10 01:08:24 1997  Jim Blandy  

        * d30v-insns (do_rot2h): Clip rotate amounts to four bits.  The

        upper bits, and the sign of the rotation amount, are red herrings.

        (do_sra, do_srl): Handle shifts greater than 32 bits.

        (do_srah, do_sral): Properly sign-extend value and shift amount.

        Handle shifts larger than 16 bits.

Thu Dec  4 09:21:05 1997  Doug Evans  

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

Mon Dec  1 15:10:44 1997  Michael Meissner  

        * d30v-insns (do_sub2h): For short instruction, correctly

        dupplicate lower 16 bits of immediate in upper 16 bits.

        (sat2z): Fix typo that ignored the upper half of the register.

        (do_satz): If < 0, set *ra to 0, if not call do_sat.

        (mvtsys): Before setting PSW, and with PSW_VALID.

        * cpu.h (PSW_VALID): Mask for bits in PSW that is valid.

Mon Dec  1 15:05:03 1997  Andrew Cagney  

        * d30v-insns (do_trap): Pacify GCC - correct type of %ld arg in

        printf, return dummy at end.

Mon Dec  1 15:05:03 1997  Andrew Cagney  

        * d30v-insns (do_add, do_addh_ppp, do_adds): Replace ALU_ADD with

        ALU_ADDC.

        (do_addc): Replace ALU_SET_CARRY / ALU_ADD_CA with ALU_ADDC_C.

        (do_sub, do_subh_ppp): Replace ALU_SUB with ALU_SUBB.

        (do_subb): Replace ALU_SET_CARRY / ALU_SUB_CA with ALU_SUBB_B.

        * alu.h (ALU16_END): Use ALU16_HAD_CARRY_BORROW instead of

        ALU16_HAD_CARRY.

        (ALU32_END): Ditto.

        * sim-main.h (string.h, strings.h): Include.

        * sim-calls.c: Delete inclusion of string.h and strings.h.

Sun Nov 30 17:29:25 1997  Michael Meissner  

        * configure.in (--enable-sim-trapdump): New switch to control

        whether traps 0..30 dump out the registers or do the real trap.

        * configure: Regenerate.

        * Makefile.in (SIM_EXTRA_CLFAGS): Add -DTRAPDUMP={0,1} if

        appropriate --{en,dis}able-sim-trapdump is done.

        * sim-calls.c (OPTION_TRACE_CALL): Rename from OPTION_CALL_TRACE.

        (OPTION_TRACE_TRAPDUMP): New option for --trace-trapdump.

        (d30v_option_handler): Add support for --trace-trapdump.

        (d30v_options): Ditto.

        (sim_open): Ditto.

        * d30v-insns (do_trap): Do register dump if --trace-trapdump and

        not the system call trap.  Remove support for calling old function

        sim_io_syscalls.

Sat Nov 29 18:54:55 1997  Michael Meissner  

        * cpu.h (_sim_cpu): Add trace_call_p, trace_action fields.

        (TRACE_CALL_P): Non-zero if --trace-call.

        (TRACE_ACTION): Non-zero if there is a tracing action at the end

        of processing an instruction boundary.

        (TRACE_ACTION_{CALL,RETURN}): Bits to say trace call & return.

        (d30v_next_insn): Delete, now trace_action field in cpu state.

        * cpu.c (d30v_next_insn): Delete, now trace_action field in cpu

        state.

        (return_occurred): Minimum saved register to check is now 34.

        * engine.c (sim_engine_run): Change call tracing to use

        trace_action field in cpu state.

        * sim-calls.c (d30v_option_handler): Handle d30v specific options.

        (d30v_options): D30V specific options.  Right now, --trace-call.

        (sim_open): Register d30v specific options.

        * d30v-insns (call, return insns): Move --trace-debug call/return

        tracing action to d30v specific --trace-call option.

Fri Nov 28 20:12:48 1997  Michael Meissner  

        * cpu.h (CREG): Rename from CR.

        * d30v-insns (do_{addc,subb}): Explicitly import the carry bit.

        (do_trap): Use CREG, not CR.  Switch to using cb_syscall.

Thu Nov 27 19:25:43 1997  Michael Meissner  

        * cpu.h (ACC): Define as short cut to accumulators.

        * d30v-insns (do_rot): Delete explicit function, use ROT32 to do

        rotate instruction.

        (do_trap): Make trap 30 print out accumulators and first 16

        control registers as well.

        (do_avg): Sign extend to 64 bit type before doing add/shift.

        (do_avg2h): Sign extend 16 bit chunks before doing add/shift.

Wed Nov 26 15:20:24 1997  Doug Evans  

        * Makefile.in (NL_TARGET): Define.

Wed Nov 26 16:55:38 1997  Michael Meissner  

        * cpu.h (d30v_next_insn): New flag for things we are supposed to

        trace between instruction words.

        ({call,return}_occurred): Remove index argument.

        (d30v_{read,write}_mem): Add declarations.

        * cpu.c (d30v_next_insn): New flag for things we are supposed to

        trace between instruction words.

        ({call,return}_occurred): Remove index argument.

        (d30v_{read,write}_mem): New functions for reading/writing

        simulated memory in the new common system call support.

        * d30v-insns: Set emacs C mode.

        (call/return insns): Set bit to trace call at instruction

        boundary, rather than doing it here.

        (do_trap): Set up to use new common system call interface.

        * engine.c (sim_engine_run): If d30v_next_insn is non zero, do

        function call/return tracing.

Mon Nov 24 16:40:49 1997  Michael Meissner  

        * d30v-insns (bnot): Correctly reset bit in question.

        (do_trap): Use common system call emulation support, rather than

        our home grown support.

Sun Nov 23 22:47:20 1997  Michael Meissner  

        * d30v-insns (mvfacc): Immediate field is unsigned, allowing

        shifts of up to 63 to be encoded.  Also do shift signed, rather

        than unsigned.

        * ic-d30v (IMM_6S): Add field for 6 bit unsigned constants.

        * d30v-insns (cmpu): Short cmpu zero extends immediate, not sign

        extends.

Sat Nov 22 19:04:34 1997  Andrew Cagney  

        * d30v-insns (illegal, wrong_slot): Replace SIGILL with

        SIM_SIGILL.

        * sim-calls.c (signal.h): Do not include, replaced by

        sim-signal.h.

        * sim-main.h (signal.h): Do not include, include sim-signal.h

        instead.

Fri Nov 21 09:33:54 1997  Andrew Cagney  

        * cpu.c (call_occurred): Use ZALLOC instead of xmalloc.

        (return_occurred): Use zfree instead of free.

Wed Nov 19 13:28:09 1997  Michael Meissner  

        * Makefile.in ({l,s}_{support,semantics}.o): Depend on the include

        files in $(ENGINE_H).

        * d30v-insns (do_{add,addc,sub,subb}): ALU_{ADD,SUB}_CA now takes

        a VAL argument to add/subtract along with the carry.

Tue Nov 18 15:33:48 1997  Doug Evans  

        * Makefile.in (SIM_OBJS): Use $(SIM_NEW_COMMON_OBJS).

Tue Nov 18 13:56:15 1997  Michael Meissner  

        * d30v-insns (do_trap): Change to new system call numbers.  Add

        read emulation.

Mon Nov 17 14:43:45 1997  Michael Meissner  

        * d30v-insns (mulx): Add mulx instruction.

Sun Nov 16 19:06:56 1997  Michael Meissner  

        * cpu.c ({call,return}_occurred): New trace functions to mark

        function calls and returns and check whether all saved registers

        really were saved.

        * cpu.h ({call,return}_occurred): Add declaration.

        * d30v-insns ({bsr, jsr} patterns): Call call_occurred if

        --trace-debug to trace function calls.

        (jmp register pattern): If this is a jump r62 and --trace-debug,

        call return_occurred to trace function calls.

        (bsr{tnz,tzr}): Move setting r62 inside conditional against reg.

        (do_ld2w): Grab memory in 64-bit chunk, to check alignment.

        (do_st2w): Ditto.

Sat Nov 15 20:57:57 1997  Michael Meissner  

        * d30v-insns: Undo changes from Nov. 11, allowing for odd register

        pairs, since the machine doesn't support such usage.  Trap on odd

        registers, rather than give a warning.  Keep do_src and do_trap

        changes.

Fri Nov 14 11:59:29 1997  Andrew Cagney  

        * d30v-insns (do_trap): Pacify compiler warnings for printf calls.

Tue Nov 11 18:26:03 1997  Michael Meissner  

        * d30v-insns (not_r63_reg): Rename from make_even_reg, only check

        for register being r63.  Change callers ld2{h,w}, ld4bh{,u}.

        (get_reg_not_r63): Rename from get_even_reg, and only check for

        register r63.  Change callers st2{w,h}, st4b.

        (do_src): Correct register pair for shift left.

        (do_trap): Temporarily make trap 30 print out the registers.

Tue Nov  4 08:51:22 1997  Michael Meissner  

        * d30v-insns (do_trap): Make trap 31 be used for system calls.

        Add primitive write and exit system calls.

        * Makefile (FILTER): New make variable to filter out known igen

        warnings.

        (tmp-igen): Add $(FILTER) on all 3 invocations of igen to filter

        out warnings that should be ignored by default.

Fri Oct 31 19:36:51 1997  Andrew Cagney  

        * sim-calls.c (sim_open): Change EIT to memory region.

Fri Oct 17 16:51:31 1997  Andrew Cagney  

        * alu.h (ALU16_END): Get result from ALU16_OVERFLOW_RESULT.

        (ALU32_END): Get result from ALU32_OVERFLOW_RESULT.

Fri Oct  3 09:28:00 1997  Andrew Cagney  

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

Mon Sep 29 15:23:35 1997  Stu Grossman  

        * d30v-insns (MVFSYS MVTSYS):  Fix bit patterns so that these

        instructions get recognised.

Wed Sep 24 17:38:57 1997  Andrew Cagney  

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

Wed Sep 24 17:51:43 1997  Stu Grossman  

        * Makefile.in (SIM_OBJS):  Add sim-break.o.

        * (INCLUDE_DEPS):  Add tconfig.h.

        * alu.h (MEM STORE):  Change to sim_core_read/write_unaligned to

        allow for trapping unaligned accesses.

        * cpu.h:  Define SIM_BREAKPOINT as syscall 5 for intrinsic breakpoint

        mechanism.

        * d30v-insn (short syscall):  Use syscall 5 for breakpoint insn.

        * sim-calls.c (sim_fetch_register sim_store_register):  Implement.

        * tconfig.in:  Define SIM_HAVE_BREAKPOINTS to enable intrinsic

        breakpoint mechanism.

Tue Sep 23 11:04:38 1997  Andrew Cagney  

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

Tue Sep 23 10:19:51 1997  Andrew Cagney  

        * Makefile.in (SIM_WARNINGS, SIM_ALIGNMENT, SIM_ENDIAN,

        SIM_HOSTENDIAN, SIM_RESERVED_BITS): Delete, moved to common.

        (SIM_EXTRA_CFLAGS): Update.

Mon Sep 22 11:46:20 1997  Andrew Cagney  

        * configure.in: Specify strict alignment.

        * 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.

Fri Sep 12 16:13:04 1997  Andrew Cagney  

        * sim-calls.c (sim_open): Change memory to

        internal inst. RAM h'00000000-h'0000ffff (64KB)

        internal data RAM  h'20000000-h'20007fff (32KB)

        external RAM       h'80000000-h'803fffff (4MB)

        EIT                h'fffff000-h'ffffffff

Thu Sep 11 08:59:34 1997  Andrew Cagney  

        * Makefile.in (SIM_OBJS): Add sim-hrw.o module.

        * sim-calls.c (sim_read): Delete. use sim-hrw.

        (sim_write): Delete, use sim-hrw.

Tue Sep  9 01:36:20 1997  Andrew Cagney  

        * ic-d30v (imm_5): Update nr args passed to LSMASKED.

        * d30v-insns (do_sat, do_sath, do_sath_p, do_satz, do_satzh): Fix,

        computing the max sat value incorrectly.

Thu Sep  4 17:21:23 1997  Doug Evans  

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

Fri Sep  5 09:15:33 1997  Andrew Cagney  

        * d30v-insns (do_mac, do_macs, do_msub, do_mulxs): Use explicit

        type cast instead of SIGNED64 macro.

Thu Sep  4 10:28:45 1997  Andrew Cagney  

        * Makefile.in (SIM_OBJS): Include sim-memopt.o module.

        * sim-calls.c (sim_open): Pass zero modulo arg to sim_core_attach

        calls.

        (sim_open): If no memory, use memory commands to establish d30v

        ram.

        (d30v_option_handler): Delete, replased by sim-memopt.c.

        (sim_create_inferior): Call sim_module_init.

        * sim-main.h (struct sim_state): Remove members eit_ram,

        sizeof_eit_ram, external_ram, baseof_external_ram,

        sizeof_external_ram. Using generic memory model instead.

Mon Sep  1 11:04:09 1997  Andrew Cagney  

        * sim-calls.c (sim_open): Use sim_state_alloc.

Sat Aug 30 10:01:51 1997  Andrew Cagney  

        * sim-main.h (INVALID_INSTRUCTION_ADDRESS): Define.

        * engine.c (do_2_short): Compare with INVALID_INSTRUCTION_ADDRESS

        not -1.

Wed Aug 27 18:13:22 1997  Andrew Cagney  

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

        * config.in: Ditto.

Wed Aug 27 13:41:54 1997  Andrew Cagney