changelog

这个是LINUX下的GDB调度工具的源码

	* interp.c (sim_open): Add ABFD argument.

Tue Jun 24 13:46:20 1997  Jeffrey A Law  ([e-mail])

	* interp.c (sim_resume): Clear State.exited.
	(sim_stop_reason): If State.exited is nonzero, then indicate that
	the simulator exited instead of stopped.
	* mn10300_sim.h (struct _state): Add exited field.
	* simops.c (syscall): Set State.exited for SYS_exit.

Wed Jun 11 22:07:56 1997  Jeffrey A Law  ([e-mail])

	* simops.c: Fix thinko in last change.

Tue Jun 10 12:31:32 1997  Jeffrey A Law  ([e-mail])

	* simops.c: "call" stores the callee saved registers into the
	stack!  Update the stack pointer properly when done with
	register saves.

	* simops.c: Fix return address computation for "call" instructions.

Thu May 22 01:43:11 1997  Jeffrey A Law  ([e-mail])

	* interp.c (sim_open): Fix typo.

Wed May 21 23:27:58 1997  Jeffrey A Law  ([e-mail])

	* interp.c (sim_resume): Add missing case in big switch
	statement (for extb instruction).

Tue May 20 17:51:30 1997  Jeffrey A Law  ([e-mail])

	* interp.c: Replace all references to load_mem and store_mem
	with references to load_byte, load_half, load_3_byte, load_word
	and store_byte, store_half, store_3_byte, store_word.
	(INLINE): Delete definition.
	(load_mem_big): Likewise.
	(max_mem): Make it global.
	(dispatch): Make this function inline.
	(load_mem, store_mem): Delete functions.
	* mn10300_sim.h (INLINE): Define.
	(RLW): Delete unused definition.
	(load_mem, store_mem): Delete declarations.
	(load_mem_big): New definition.
	(load_byte, load_half, load_3_byte, load_word): New functions.
	(store_byte, store_half, store_3_byte, store_word): New functions.
	* simops.c:  Replace all references to load_mem and store_mem
	with references to load_byte, load_half, load_3_byte, load_word
	and store_byte, store_half, store_3_byte, store_word.

Tue May 20 10:21:51 1997  Andrew Cagney  <[e-mail]>

	* interp.c (sim_open): Add callback to arguments.
	(sim_set_callbacks): Delete SIM_DESC argument.

Mon May 19 13:54:22 1997  Jeffrey A Law  ([e-mail])

	* interp.c (dispatch): Make this an inline function.

	* simops.c (syscall): Use callback->write regardless of
	what file descriptor we're writing too.

Sun May 18 16:46:31 1997  Jeffrey A Law  ([e-mail])

	* interp.c (load_mem_big): Remove function.  It's now a macro
	defined elsewhere.
	(compare_simops): New function.
	(sim_open): Sort the Simops table before inserting entries
	into the hash table.
	* mn10300_sim.h: Remove unused #defines.
	(load_mem_big): Define.

Fri May 16 16:36:17 1997  Jeffrey A Law  ([e-mail])

	* interp.c (load_mem): If we get a load from an out of range
	address, abort.
	(store_mem): Likewise for stores.
	(max_mem): New variable.

Tue May  6 13:24:36 1997  Jeffrey A Law  ([e-mail])

	* mn10300_sim.h: Fix ordering of bits in the PSW.

	* interp.c: Improve hashing routine to avoid long list
	traversals for common instructions.  Add HASH_STAT support.
	Rewrite opcode dispatch code using a big switch instead of
	cascaded if/else statements.  Avoid useless calls to load_mem.

Mon May  5 18:07:48 1997  Jeffrey A Law  ([e-mail])

	* mn10300_sim.h (struct _state): Add space for mdrq register.
	(REG_MDRQ): Define.
	* simops.c: Don't abort for trap.  Add support for the extended
	instructions, "getx", "putx", "mulq", "mulqu", "sat16", "sat24",
	and "bsch".

Thu Apr 24 00:39:51 1997  Doug Evans  <[e-mail]>

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

Fri Apr 18 14:04:04 1997  Andrew Cagney  <[e-mail]>

	* interp.c (sim_stop): Add stub function.

Thu Apr 17 03:26:59 1997  Doug Evans  <[e-mail]>

	* Makefile.in (SIM_OBJS): Add sim-load.o.
	* interp.c (sim_kind, myname): New static locals.
	(sim_open): Set sim_kind, myname.  Ignore -E arg.
	(sim_load): Return SIM_RC.  New arg abfd.  Call sim_load_file to
	load file into simulator.  Set start address from bfd.
	(sim_create_inferior): Return SIM_RC.  Delete arg start_address.

Wed Apr 16 19:30:44 1997  Andrew Cagney  <[e-mail]>

	* simops.c (OP_F020): SYS_execv, SYS_time, SYS_times, SYS_utime
 	only include if implemented by host.
	(OP_F020): Typecast arg passed to time function;

Mon Apr  7 23:57:49 1997  Jeffrey A Law  ([e-mail])

	* simops.c (syscall): Handle new mn10300 calling conventions.

Mon Apr  7 15:45:02 1997  Andrew Cagney  <[e-mail]>

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

Fri Apr  4 20:02:37 1997  Ian Lance Taylor  <[e-mail]>

	* Makefile.in: Change mn10300-opc.o to m10300-opc.o, to match
	corresponding change in opcodes directory.

Wed Apr  2 15:06:28 1997  Doug Evans  <[e-mail]>

	* interp.c (sim_open): New arg `kind'.

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

Wed Apr  2 14:34:19 1997 Andrew Cagney <[e-mail]>

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

Thu Mar 20 11:58:02 1997  Jeffrey A Law  ([e-mail])

	* simops.c: Fix register extraction for a two "movbu" variants.
	Somewhat simplify "sub" instructions.
	Correctly sign extend operands for "mul".  Put the correct
	half of the result in MDR for "mul" and "mulu".
	Implement remaining instructions.
	Tweak opcode for "syscall".

Tue Mar 18 14:21:21 1997  Jeffrey A Law  ([e-mail])

	* simops.c: Do syscall emulation in "syscall" instruction.  Add
	dummy "trap" instruction.

Wed Mar 19 01:14:00 1997  Andrew Cagney  <[e-mail]>

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

Mon Mar 17 15:10:07 1997  Andrew Cagney  <[e-mail]>

	* configure: Re-generate.

Fri Mar 14 10:34:11 1997  Michael Meissner  <[e-mail]>

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

Thu Mar 13 12:54:45 1997  Doug Evans  <[e-mail]>

	* interp.c (sim_open): New SIM_DESC result.  Argument is now
	in argv form.
	(other sim_*): New SIM_DESC argument.

Wed Mar 12 15:04:00 1997  Jeffrey A Law  ([e-mail])

	* simops.c: Fix carry bit computation for "add" instructions.

	* simops.c: Fix typos in bset insns.  Fix arguments to store_mem
	for bset imm8,(d8,an) and bclr imm8,(d8,an).

Wed Mar  5 15:00:10 1997  Jeffrey A Law  ([e-mail])

	* simops.c: Fix register references when computing Z and N bits
	for lsr imm8,dn.

Tue Feb  4 13:33:30 1997  Doug Evans  <[e-mail]>

	* Makefile.in (@COMMON_MAKEFILE_FRAG): Use
	COMMON_{PRE,POST}_CONFIG_FRAG instead.
	* configure.in: sinclude ../common/aclocal.m4.
	* configure: Regenerated.

Fri Jan 24 10:47:25 1997  Jeffrey A Law  ([e-mail])

	* interp.c (init_system): Allocate 2^19 bytes of space for the
	simulator.

Thu Jan 23 11:46:23 1997  Stu Grossman  ([e-mail])

	* 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.

Tue Jan 21 15:03:04 1997  Jeffrey A Law  ([e-mail])

	* simops.c: Undo last change to "rol" and "ror", original code
	was correct!

Thu Jan 16 11:28:14 1997  Jeffrey A Law  ([e-mail])

	* simops.c: Fix "rol" and "ror".

Wed Jan 15 06:45:58 1997  Jeffrey A Law  ([e-mail])

	* simops.c: Fix typo in last change.

Mon Jan 13 13:22:35 1997  Jeffrey A Law  ([e-mail])

	* simops.c: Use REG macros in few places not using them yet.

Mon Jan  6 16:21:19 1997  Jeffrey A Law  ([e-mail])

	* mn10300_sim.h (struct _state): Fix number of registers!

Tue Dec 31 16:20:41 1996  Jeffrey A Law  ([e-mail])

	* mn10300_sim.h (struct _state): Put all registers into a single
	array to make gdb implementation easier.
	(REG_*): Add definitions for all registers in the state array.
	(SEXT32, SEXT40, SEXT44, SEXT60): Remove unused macros.
	* simops.c: Related changes.

Wed Dec 18 10:10:45 1996  Jeffrey A Law  ([e-mail])

	* interp.c (sim_resume): Handle 0xff as a single byte insn.

	* simops.c: Fix overflow computation for "add" and "inc"
	instructions.

Mon Dec 16 10:03:52 1996  Jeffrey A Law  ([e-mail])

	* simops.c: Handle "break" instruction.

	* simops.c: Fix restoring the PC for "ret" and "retf" instructions.

Wed Dec 11 09:53:10 1996  Jeffrey A Law  ([e-mail])

	* gencode.c (write_opcodes): Also write out the format of the
	opcode.
	* mn10300_sim.h (simops): Add "format" field.
	* interp.c (sim_resume): Deal with endianness issues here.

Tue Dec 10 15:05:37 1996  Jeffrey A Law  ([e-mail])

	* simops.c (REG0_4): Define.
	Use REG0_4 for indexed loads/stores.

Sat Dec  7 09:50:28 1996  Jeffrey A Law  ([e-mail])

	* simops.c (REG0_16): Fix typo.

Fri Dec  6 14:13:34 1996  Jeffrey A Law  ([e-mail])

	* simops.c: Call abort for any instruction that's not currently
	simulated.

	* simops.c: Define accessor macros to extract register
	values from instructions.  Use them consistently.

	* interp.c: Delete unused global variable "OP".
	(sim_resume): Remove unused variable "opcode".
	* simops.c: Fix some uninitialized variable problems, add
	parens to fix various -Wall warnings.

	* gencode.c (write_header): Add "insn" and "extension" arguments
	to the OP_* declarations.
	(write_template): Similarly for function templates.
	* interp.c (insn, extension): Remove global variables.  Instead
	pass them as arguments to the OP_* functions.
	* mn10300_sim.h: Remove decls for "insn" and "extension".
	* simops.c (OP_*): Accept "insn" and "extension" as arguments
	instead of using globals.

Thu Dec  5 22:26:31 1996  Jeffrey A Law  ([e-mail])

	* simops.c: Fix typos in "mov am,(d16,an)" and "mov am,(d32,an)"

	* simops.c: Fix thinkos in last change to "inc dn".

Wed Dec  4 10:57:53 1996  Jeffrey A Law  ([e-mail])

	* simops.c: "add imm,sp" does not effect the condition codes.
	"inc dn" does effect the condition codes.

Tue Dec  3 17:37:45 1996  Jeffrey A Law  ([e-mail])

	* simops.c: Treat both operands as signed values for
	"div" instruction.

	* simops.c: Fix simulation of division instructions.
	Fix typos/thinkos in several "cmp" and "sub" instructions.

Mon Dec  2 12:31:40 1996  Jeffrey A Law  ([e-mail])

	* simops.c: Fix carry bit handling in "sub" and "cmp"
	instructions.

	* simops.c: Fix "mov imm8,an" and "mov imm16,dn".

Sun Dec  1 16:05:42 1996  Jeffrey A Law  ([e-mail])

	* simops.c: Fix overflow computation for many instructions.

	* simops.c: Fix "mov dm, an", "movbu dm, (an)", and "movhu dm, (an)".

	* simops.c: Fix "mov am, dn".

	* simops.c: Fix more bugs in "add imm,an" and
	"add imm,dn".

Wed Nov 27 09:20:42 1996  Jeffrey A Law  ([e-mail])

	* simops.c: Fix bugs in "movm" and "add imm,an".

	* simops.c: Don't lose the upper 24 bits of the return
	pointer in "call" and "calls" instructions.  Rough cut
	at emulated system calls.

	* simops.c: Implement the remaining 5, 6 and 7 byte instructions.

	* simops.c: Implement remaining 4 byte instructions.

	* simops.c: Implement remaining 3 byte instructions.

	* simops.c: Implement remaining 2 byte instructions.  Call
	abort for instructions we're not implementing now.

Tue Nov 26 15:43:41 1996  Jeffrey A Law  ([e-mail])

	* simops.c: Implement lots of random instructions.

	* simops.c: Implement "movm" and "bCC" insns.

	* mn10300_sim.h (_state): Add another register (MDR).
	(REG_MDR): Define.
	* simops.c: Implement "cmp", "calls", "rets", "jmp" and
	a few additional random insns.

	* mn10300_sim.h (PSW_*): Define for CC status tracking.
	(REG_D0, REG_A0, REG_SP): Define.
	* simops.c: Implement "add", "addc" and a few other random
	instructions.

	* gencode.c, interp.c: Snapshot current simulator code.

Mon Nov 25 12:46:38 1996  Jeffrey A Law  ([e-mail])

	* Makefile.in, config.in, configure, configure.in: New files.
	* gencode.c, interp.c, mn10300_sim.h, simops.c: New files.