changelog

这个是LINUX下的GDB调度工具的源码

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

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

Tue Nov 18 13:56:15 1997  Michael Meissner  <[e-mail]>

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

Mon Nov 17 14:43:45 1997  Michael Meissner  <[e-mail]>

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

Sun Nov 16 19:06:56 1997  Michael Meissner  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

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

Tue Nov 11 18:26:03 1997  Michael Meissner  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

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

Fri Oct 17 16:51:31 1997  Andrew Cagney  <[e-mail]>

	* 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  <[e-mail]>

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

Mon Sep 29 15:23:35 1997  Stu Grossman  <[e-mail]>

	* d30v-insns (MVFSYS MVTSYS):  Fix bit patterns so that these
	instructions get recognised.

Wed Sep 24 17:38:57 1997  Andrew Cagney  <[e-mail]>

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

Wed Sep 24 17:51:43 1997  Stu Grossman  <[e-mail]>

	* 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  <[e-mail]>

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

Tue Sep 23 10:19:51 1997  Andrew Cagney  <[e-mail]>

	* 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  <[e-mail]>

	* configure.in: Specify strict alignment.
	* configure: Regenerated to track ../common/aclocal.m4 changes.

Fri Sep 19 17:45:25 1997  Andrew Cagney  <[e-mail]>

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

Mon Sep 15 17:36:15 1997  Andrew Cagney  <[e-mail]>

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

Fri Sep 12 16:13:04 1997  Andrew Cagney  <[e-mail]>

        * 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <dje@seba>

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

Fri Sep  5 09:15:33 1997  Andrew Cagney  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

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

Sat Aug 30 10:01:51 1997  Andrew Cagney  <[e-mail]>

	* 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  <[e-mail]>

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

Wed Aug 27 13:41:54 1997  Andrew Cagney  <[e-mail]>

	* sim-calls.c (sim_open): Add call to sim_analyze_program, update
 	call to sim_config.

	* sim-calls.c (sim_create_inferior): Add ABFD argument.
  	Initialize CPU registers including PC.
	(sim_load): Delete, using sim-hload.

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

Mon Aug 25 17:50:22 1997  Andrew Cagney  <[e-mail]>

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

Mon Aug 25 15:41:44 1997  Andrew Cagney  <[e-mail]>

	* sim-calls.c (sim_open): Add ABFD argument.
	(sim_open): Move sim_config call to after sim_parse_args.
	(sim_open): Check sim_config return status.

Fri Aug 22 16:38:59 1997  Andrew Cagney  <[e-mail]>

	* d30v-insns (do_subh_ppp): Correct name, was do_sub_ppp.
	(do_subh_ppp): Compute rc=rb-src instead of src-rb.
	(do_addh_ppp): Ditto.
	
Fri Jun 27 14:43:20 1997  Andrew Cagney  <[e-mail]>

	* d30v-insns (mvfsys, mvtsys): Switch instruction encodings, was
 	wrong.  Update handling of PSW[DS] bit.
	(dbt): Fix debug trap address.

	* cpu.h (NR_CONTROL_REGISTERS): Allow the full 64 registers.

Tue Jun 24 12:41:55 1997  Andrew Cagney  <[e-mail]>

	* d30v-insns (DBT, RTD): Swap the stack after updating the PSW.
	(DBT): Use PSW_SET to update PSW.
	
	* alu.h (ALU16_END): Check for 16 bit carry and not 32 bit.

Tue Jun 24 12:16:14 1997  Andrew Cagney  <[e-mail]>

	* d30v-insns (ppp, ccc, pp, XX, p): Update format functions so
 	that they are of class %s instead of class function.

Tue Jun 10 12:26:39 1997  Andrew Cagney  <[e-mail]>

	* sim-main.h (engine_error, engine_restart, engine_halt,
 	engine_run_until_stop): Delete prototypes.  Functions deleted
 	earlier.
	(do_interrupt_handler): Add prototype.
	(sim_state): Add pending_event member to struct.

	* sim-calls.c (sim_open): Configure interrupt handler.
	* engine.c (d30v_interrupt_event): New function.  Deliver external
 	interrupt to processor.

	* d30v-insns (do_stack_swap): Move function from here.
	* engine.c (do_stack_swap): To here.
	* sim-main.h (do_stack_swap): Add prototype.
	
	* cpu.h (registers): Change current_sp to an int.
	* d30v-insn (do_stack_swap): Update.
	
Thu Jun  5 12:54:35 1997  Andrew Cagney  <[e-mail]>

	* d30v-insns (LD*, ST*): Disasemble XX == 0 as immed version of
 	instruction.
	(str_XXX): Fix case of XX == 3 - return "-".

Thu Jun  5 12:54:35 1997  Andrew Cagney  <[e-mail]>

	* engine.c (sim_engine_run): Issuing L->R and R->L instructions in
 	wrong order.

	* d30v-insn (CMPUcc imm long): With of RB field should be 6 not
 	three.
	(MUL, MUL2H, MULHX): X field 01 instead of 10.

Thu Jun  5 12:54:35 1997  Andrew Cagney  <[e-mail]>

	* d30v-insns (mvtsys): Don't modify DS bit when writing to PSW.
	(dbt, rtd): New instructions.

	* cpu.h (NR_CONTROL_REGISTERS): Now 15.
	(debug_program_status_word_cr, debug_program_counter_cr): Add
 	debug control registers. Renumber other control registers.
	(PSW_DS): New PSW bit.
	(DPC, DPSW): Define.

Wed May 28 13:45:47 1997  Andrew Cagney  <[e-mail]>

	* engine.c (sim_engine_run): Check the event queue on every cycle.

	* sim-calls.c (sim_size): Delete.
	(sim_do_command): Call sim_args_command.
	(sim_open): Move eit_ram and sizeof_eit_ram to sim_state struct.
	(simulation): Delete global now depend on sd argument.
	(sim_open): Initialize sim-watch.
	(d30v_option_handler): New function, parse mem-size argument.

Tue May 27 14:03:38 1997  Andrew Cagney  <[e-mail]>

	* sim-calls.c (sim_set_callbacks): Delete.
	(sim_write): Pass NULL cpu arg to sim_core_write_buffer.

	* engine.c (engine_init): Delete.  Handled in sim_open.
	(engine_create): Ditto.
	
Tue May 20 10:15:35 1997  Andrew Cagney  <[e-mail]>

	* sim-calls.c (sim_open): Add callback argument.
	(sim_set_callbacks): Delete SIM_DESC argument.

Mon May 19 14:59:32 1997  Andrew Cagney  <[e-mail]>

	* sim-calls.c (sim_open): Set the sim.base magic number.

Fri May 16 15:25:59 1997  Andrew Cagney  <[e-mail]>

	* d30v-insns: Replace engine_error with common sim_engine_abort.
	* cpu.c (is_condition_ok, is_wrong_slot): Ditto.

	* engine.c (engine_run_until_stop): Rename this.