changelog

这个是LINUX下的GDB调度工具的源码

	(MX_Avg, MX_VECT_ABSDA, MX_AbsDiffC): New macros.

2002-06-03  Chris Demetriou  <[e-mail]>

	* Makefile.in (IGEN_INCLUDE): Add mdmx.igen.

2002-06-02  Chris Demetriou  <[e-mail]>
            Ed Satterthwaite  <[e-mail]>

	* mips.igen (mdmx): New (pseudo-)model.
	* mdmx.c, mdmx.igen: New files.
	* Makefile.in (SIM_OBJS): Add mdmx.o.
	* sim-main.h (MDMX_accumulator, MX_fmtsel, signed24, signed48):
	New typedefs.
	(ACC, MX_Add, MX_AddA, MX_AddL, MX_And, MX_C_EQ, MX_C_LT, MX_Comp)
	(MX_FMT_OB, MX_FMT_QH, MX_Max, MX_Min, MX_Msgn, MX_Mul, MX_MulA)
	(MX_MulL, MX_MulS, MX_MulSL, MX_Nor, MX_Or, MX_Pick, MX_RAC)
	(MX_RAC_H, MX_RAC_L, MX_RAC_M, MX_RNAS, MX_RNAU, MX_RND_AS)
	(MX_RND_AU, MX_RND_ES, MX_RND_EU, MX_RND_ZS, MX_RND_ZU, MX_RNES)
	(MX_RNEU, MX_RZS, MX_RZU, MX_SHFL, MX_ShiftLeftLogical)
	(MX_ShiftRightArith, MX_ShiftRightLogical, MX_Sub, MX_SubA, MX_SubL)
	(MX_VECT_ADD, MX_VECT_ADDA, MX_VECT_ADDL, MX_VECT_AND)
	(MX_VECT_MAX, MX_VECT_MIN, MX_VECT_MSGN, MX_VECT_MUL, MX_VECT_MULA)
	(MX_VECT_MULL, MX_VECT_MULS, MX_VECT_MULSL, MX_VECT_NOR)
	(MX_VECT_OR, MX_VECT_SLL, MX_VECT_SRA, MX_VECT_SRL, MX_VECT_SUB)
	(MX_VECT_SUBA, MX_VECT_SUBL, MX_VECT_XOR, MX_WACH, MX_WACL, MX_Xor)
	(SIM_ARGS, SIM_STATE, UnpredictableResult, fmt_mdmx, ob_fmtsel)
	(qh_fmtsel): New macros.
	(_sim_cpu): New member "acc".
	(mdmx_acc_op, mdmx_cc_op, mdmx_cpr_op, mdmx_pick_op, mdmx_rac_op)
	(mdmx_round_op, mdmx_shuffle, mdmx_wach, mdmx_wacl): New functions.

2002-05-01  Chris Demetriou  <[e-mail]>

	* interp.c: Use 'deprecated' rather than 'depreciated.'
	* sim-main.h: Likewise.

2002-05-01  Chris Demetriou  <[e-mail]>

	* cp1.c (store_fpr): Remove #ifdef'd out call to UndefinedResult
	which wouldn't compile anyway.
	* sim-main.h (unpredictable_action): New function prototype.
	(Unpredictable): Define to call igen function unpredictable().
	(NotWordValue): New macro to call igen function not_word_value().
	(UndefinedResult): Remove.
	* interp.c (undefined_result): Remove.
	(unpredictable_action): New function.
	* mips.igen (not_word_value, unpredictable): New functions.
	(ADD, ADDI, do_addiu, do_addu, BGEZAL, BGEZALL, BLTZAL, BLTZALL)
	(CLO, CLZ, MADD, MADDU, MSUB, MSUBU, MUL, do_mult, do_multu)
	(do_sra, do_srav, do_srl, do_srlv, SUB, do_subu): Invoke
	NotWordValue() to check for unpredictable inputs, then
	Unpredictable() to handle them.

2002-02-24  Chris Demetriou  <[e-mail]>

	* mips.igen: Fix formatting of calls to Unpredictable().

2002-04-20  Andrew Cagney  <[e-mail]>

	* interp.c (sim_open): Revert previous change.

2002-04-18  Alexandre Oliva  <[e-mail]>

	* interp.c (sim_open): Disable chunk of code that wrote code in
	vector table entries.

2002-03-19  Chris Demetriou  <[e-mail]>

	* cp1.c (FP_S_s, FP_D_s, FP_S_be, FP_D_be, FP_S_e, FP_D_e, FP_S_f)
	(FP_D_f, FP_S_fb, FP_D_fb, FPINF_SINGLE, FPINF_DOUBLE): Remove
	unused definitions.

2002-03-19  Chris Demetriou  <[e-mail]>

	* cp1.c: Fix many formatting issues.

2002-03-19  Chris G. Demetriou  <[e-mail]>

	* cp1.c (fpu_format_name): New function to replace...
	(DOFMT): This.  Delete, and update all callers.
	(fpu_rounding_mode_name): New function to replace...
	(RMMODE): This.  Delete, and update all callers.

2002-03-19  Chris G. Demetriou  <[e-mail]>

	* interp.c: Move FPU support routines from here to...
	* cp1.c: Here.  New file.
	* Makefile.in (SIM_OBJS): Add cp1.o to object list.
	(cp1.o): New target.

2002-03-12  Chris Demetriou  <[e-mail]>

	* configure.in (mipsisa32*-*-*, mipsisa64*-*-*): New targets.
	* mips.igen (mips32, mips64): New models, add to all instructions
	and functions as appropriate.
	(loadstore_ea, check_u64): New variant for model mips64.
	(check_fmt_p): New variant for models mipsV and mips64, remove
	mipsV model marking fro other variant.
	(SLL) Rename to...
	(SLLa) this.
	(CLO, CLZ, MADD, MADDU, MSUB, MSUBU, MUL, SLLb): New instructions
	for mips32 and mips64.
	(DCLO, DCLZ): New instructions for mips64.

2002-03-07  Chris Demetriou  <[e-mail]>

	* mips.igen (BREAK, LUI, ORI, SYSCALL, XORI): Print
	immediate or code as a hex value with the "%#lx" format.
	(ANDI): Likewise, and fix printed instruction name.

2002-03-05  Chris Demetriou  <[e-mail]>

	* sim-main.h (UndefinedResult, Unpredictable): New macros
	which currently do nothing.

2002-03-05  Chris Demetriou  <[e-mail]>

	* sim-main.h (status_UX, status_SX, status_KX, status_TS)
	(status_PX, status_MX, status_CU0, status_CU1, status_CU2)
	(status_CU3): New definitions.

	* sim-main.h (ExceptionCause): Add new values for MIPS32
	and MIPS64: MDMX, MCheck, CacheErr.  Update comments
	for DebugBreakPoint and NMIReset to note their status in
	MIPS32 and MIPS64.
	(SignalExceptionMDMX, SignalExceptionWatch, SignalExceptionMCheck)
	(SignalExceptionCacheErr): New exception macros.

2002-03-05  Chris Demetriou  <[e-mail]>

	* mips.igen (check_fpu): Enable check for coprocessor 1 usability.
	* sim-main.h (COP_Usable): Define, but for now coprocessor 1
	is always enabled.
	(SignalExceptionCoProcessorUnusable): Take as argument the
	unusable coprocessor number.

2002-03-05  Chris Demetriou  <[e-mail]>

	* mips.igen: Fix formatting of all SignalException calls.

2002-03-05  Chris Demetriou  <[e-mail]>

	* sim-main.h (SIGNEXTEND): Remove.

2002-03-04  Chris Demetriou  <[e-mail]>

	* mips.igen: Remove gencode comment from top of file, fix
	spelling in another comment.

2002-03-04  Chris Demetriou  <[e-mail]>

	* mips.igen (check_fmt, check_fmt_p): New functions to check
	whether specific floating point formats are usable.
	(ABS.fmt, ADD.fmt, CEIL.L.fmt, CEIL.W, DIV.fmt, FLOOR.L.fmt)
	(FLOOR.W.fmt, MOV.fmt, MUL.fmt, NEG.fmt, RECIP.fmt, ROUND.L.fmt)
	(ROUND.W.fmt, RSQRT.fmt, SQRT.fmt, SUB.fmt, TRUNC.L.fmt, TRUNC.W):
	Use the new functions.
	(do_c_cond_fmt): Remove format checks...
	(C.cond.fmta, C.cond.fmtb): And move them into all callers.

2002-03-03  Chris Demetriou  <[e-mail]>

	* mips.igen: Fix formatting of check_fpu calls.

2002-03-03  Chris Demetriou  <[e-mail]>

	* mips.igen (FLOOR.L.fmt): Store correct destination register.

2002-03-03  Chris Demetriou  <[e-mail]>

	* mips.igen: Remove whitespace at end of lines.

2002-03-02  Chris Demetriou  <[e-mail]>

	* mips.igen (loadstore_ea): New function to do effective
	address calculations.
	(do_load, do_load_left, do_load_right, LL, LDD, PREF, do_store,
	do_store_left, do_store_right, SC, SCD, PREFX, SWC1, SWXC1,
	CACHE): Use loadstore_ea to do effective address computations.

2002-03-02  Chris Demetriou  <[e-mail]>

	* interp.c (load_word): Use EXTEND32 rather than SIGNEXTEND.
	* mips.igen (LL, CxC1, MxC1): Likewise.

2002-03-02  Chris Demetriou  <[e-mail]>

	* mips.igen (LL, LLD, PREF, SC, SCD, ABS.fmt, ADD.fmt, CEIL.L.fmt,
	CEIL.W, CVT.D.fmt, CVT.L.fmt, CVT.S.fmt, CVT.W.fmt, DIV.fmt,
	FLOOR.L.fmt, FLOOR.W.fmt, MADD.D, MADD.S, MOV.fmt, MOVtf.fmt,
	MSUB.D, MSUB.S, MUL.fmt, NEG.fmt, NMADD.D, NMADD.S, NMSUB.D,
	NMSUB.S, PREFX, RECIP.fmt, ROUND.L.fmt, ROUND.W.fmt, RSQRT.fmt,
	SQRT.fmt, SUB.fmt, SWC1, SWXC1, TRUNC.L.fmt, TRUNC.W, CACHE):
	Don't split opcode fields by hand, use the opcode field values
	provided by igen.

2002-03-01  Chris Demetriou  <[e-mail]>

	* mips.igen (do_divu): Fix spacing.

	* mips.igen (do_dsllv): Move to be right before DSLLV,
	to match the rest of the do_<shift> functions.

2002-03-01  Chris Demetriou  <[e-mail]>

	* mips.igen (do_dsll, do_dsllv, DSLL32, do_dsra, DSRA32, do_dsrl,
	DSRL32, do_dsrlv): Trace inputs and results.

2002-03-01  Chris Demetriou  <[e-mail]>

	* mips.igen (CACHE): Provide instruction-printing string.

	* interp.c (signal_exception): Comment tokens after #endif.

2002-02-28  Chris Demetriou  <[e-mail]>

	* mips.igen (LWXC1): Mark with filter "64,f", rather than just "32".
	(MOVtf, MxC1, MxC1, DMxC1, DMxC1, CxC1, CxC1, SQRT.fmt, MOV.fmt, 
	NEG.fmt, ROUND.L.fmt, TRUNC.L.fmt, CEIL.L.fmt, FLOOR.L.fmt, 
	ROUND.W.fmt, TRUNC.W, CEIL.W, FLOOR.W.fmt, RECIP.fmt, RSQRT.fmt, 
	CVT.S.fmt, CVT.D.fmt, CVT.W.fmt, CVT.L.fmt, MOVtf.fmt, C.cond.fmta, 
	C.cond.fmtb, SUB.fmt, MUL.fmt, DIV.fmt, MOVZ.fmt, MOVN.fmt, LDXC1, 
	SWXC1, SDXC1, MSUB.D, MSUB.S, NMADD.S, NMADD.D, NMSUB.S, NMSUB.D, 
	LWC1, SWC1): Add "f" to filter, since these are FP instructions.

2002-02-28  Chris Demetriou  <[e-mail]>

	* mips.igen (DSRA32, DSRAV): Fix order of arguments in
	instruction-printing string.
	(LWU): Use '64' as the filter flag.

2002-02-28  Chris Demetriou  <[e-mail]>

	* mips.igen (SDXC1): Fix instruction-printing string.

2002-02-28  Chris Demetriou  <[e-mail]>

	* mips.igen (LDC1, SDC1): Remove mipsI model, and mark with
	filter flags "32,f".

2002-02-27  Chris Demetriou  <[e-mail]>

	* mips.igen (PREFX): This is a 64-bit instruction, use '64'
	as the filter flag.

2002-02-27  Chris Demetriou  <[e-mail]>

	* mips.igen (PREFX): Tweak instruction opcode fields (i.e.,
	add a comma) so that it more closely match the MIPS ISA
	documentation opcode partitioning.
	(PREF): Put useful names on opcode fields, and include
	instruction-printing string.

2002-02-27  Chris Demetriou  <[e-mail]>

	* mips.igen (check_u64): New function which in the future will
	check whether 64-bit instructions are usable and signal an
	exception if not.  Currently a no-op.
	(DADD, DADDI, DADDIU, DADDU, DDIV, DDIVU, DMULT, DMULTU, DSLL,
	DSLL32, DSLLV, DSRA, DSRA32, DSRAV, DSRL, DSRL32, DSRLV, DSUB,
	DSUBU, LD, LDL, LDR, LLD, LWU, SCD, SD, SDL, SDR, DMxC1, LDXC1,
	LWXC1, SDXC1, SWXC1, DMFC0, DMTC0): Use check_u64.

	* mips.igen (check_fpu): New function which in the future will
	check whether FPU instructions are usable and signal an exception
	if not.  Currently a no-op.
	(ABS.fmt, ADD.fmt, BC1a, BC1b, C.cond.fmta, C.cond.fmtb,
	CEIL.L.fmt, CEIL.W, CxC1, CVT.D.fmt, CVT.L.fmt, CVT.S.fmt,
	CVT.W.fmt, DIV.fmt, DMxC1, DMxC1, FLOOR.L.fmt, FLOOR.W.fmt, LDC1,
	LDXC1, LWC1, LWXC1, MADD.D, MADD.S, MxC1, MOV.fmt, MOVtf,
	MOVtf.fmt, MOVN.fmt, MOVZ.fmt, MSUB.D, MSUB.S, MUL.fmt, NEG.fmt,
	NMADD.D, NMADD.S, NMSUB.D, NMSUB.S, RECIP.fmt, ROUND.L.fmt,
	ROUND.W.fmt, RSQRT.fmt, SDC1, SDXC1, SQRT.fmt, SUB.fmt, SWC1,
	SWXC1, TRUNC.L.fmt, TRUNC.W): Use check_fpu.

2002-02-27  Chris Demetriou  <[e-mail]>

	* mips.igen (do_load_left, do_load_right): Move to be immediately
	following do_load.
	(do_store_left, do_store_right): Move to be immediately following
	do_store.

2002-02-27  Chris Demetriou  <[e-mail]>

	* mips.igen (mipsV): New model name.  Also, add it to
	all instructions and functions where it is appropriate.

2002-02-18  Chris Demetriou  <[e-mail]>

	* mips.igen: For all functions and instructions, list model
	names that support that instruction one per line.

2002-02-11  Chris Demetriou  <[e-mail]>

	* mips.igen: Add some additional comments about supported
	models, and about which instructions go where.
	(BC1b, MFC0, MTC0, RFE): Sort supported models in the same
	order as is used in the rest of the file.

2002-02-11  Chris Demetriou  <[e-mail]>

	* mips.igen (ADD, ADDI, DADDI, DSUB, SUB): Add comment
	indicating that ALU32_END or ALU64_END are there to check
	for overflow.
	(DADD): Likewise, but also remove previous comment about
	overflow checking.

2002-02-10  Chris Demetriou  <[e-mail]>

	* mips.igen (DDIV, DIV, DIVU, DMULT, DMULTU, DSLL, DSLL32,
	DSLLV, DSRA, DSRA32, DSRAV, DSRL, DSRL32, DSRLV, DSUB, DSUBU,
	JALR, JR, MOVN, MOVZ, MTLO, MULT, MULTU, SLL, SLLV, SLT, SLTU,
	SRAV, SRLV, SUB, SUBU, SYNC, XOR, MOVtf, DI, DMFC0, DMTC0, EI,
	ERET, RFE, TLBP, TLBR, TLBWI, TLBWR): Tweak instruction opcode
	fields (i.e., add and move commas) so that they more closely
	match the MIPS ISA documentation opcode partitioning.

2002-02-10  Chris Demetriou  <[e-mail]>

        * mips.igen (ADDI): Print immediate value.
        (BREAK): Print code.
        (DADDIU, DSRAV, DSRLV): Print correct instruction name.
        (SLL): Print "nop" specially, and don't run the code
        that does the shift for the "nop" case.

2001-11-17  Fred Fish  <[e-mail]>

	* sim-main.h (float_operation): Move enum declaration outside
	of _sim_cpu struct declaration.

2001-04-12  Jim Blandy  <[e-mail]>

	* mips.igen (CFC1, CTC1): Pass the correct register numbers to
	PENDING_FILL.  Use PENDING_SCHED directly to handle the pending
	set of the FCSR.
	* sim-main.h (COCIDX): Remove definition; this isn't supported by
	PENDING_FILL, and you can get the intended effect gracefully by
	calling PENDING_SCHED directly.

2001-02-23  Ben Elliston  <[e-mail]>

	* sim-main.h (ENGINE_ISSUE_PREFIX_HOOK): Only define if not
	already defined elsewhere.

2001-02-19  Ben Elliston  <[e-mail]>

	* sim-main.h (sim_monitor): Return an int.
	* interp.c (sim_monitor): Add return values.
	(signal_exception): Handle error conditions from sim_monitor.

2001-02-08  Ben Elliston  <[e-mail]>

	* sim-main.c (load_memory): Pass cia to sim_core_read* functions.
	(store_memory): Likewise, pass cia to sim_core_write*.

2000-10-19  Frank Ch. Eigler  <[e-mail]>

	On advice from Chris G. Demetriou <[e-mail]>:
	* sim-main.h (GPR_CLEAR): Remove unused alternative macro.

Thu Jul 27 22:02:05 2000  Andrew Cagney  <[e-mail]>

	From Maciej W. Rozycki <[e-mail]>:
	* Makefile.in: Don't delete *.igen when cleaning directory.

Wed Jul 19 18:50:51 2000  Andrew Cagney  <[e-mail]>

	* m16.igen (break): Call SignalException not sim_engine_halt.

Mon Jul  3 11:13:20 2000  Andrew Cagney  <[e-mail]>

	From Jason Eckhardt:
	* mips.igen (MOVZ.fmt, MOVN.fmt): Move conditional on GPR[RT].

Tue Jun 13 20:52:07 2000  Andrew Cagney  <[e-mail]>