changelog

这个是LINUX下的GDB调度工具的源码

2004-09-24  Monika Chaddha  <[e-mail]>
	
	Committed by Andrew Cagney.
	* m16.igen (CMP, CMPI): Fix assembler.

2004-08-18  Chris Demetriou  <[e-mail]>

	* configure.in (mipsisa64sb1*-*-*): Add mips3d to sim_igen_machine.
	* configure: Regenerate.

2004-06-25  Chris Demetriou  <[e-mail]>

	* configure.in (sim_m16_machine): Include mipsIII.
	* configure: Regenerate.

2004-05-11  Maciej W. Rozycki  <[e-mail]>

	* mips/interp.c (decode_coproc): Sign-extend the address retrieved 
	from COP0_BADVADDR.
	* mips/sim-main.h (COP0_BADVADDR): Remove a cast.

2004-04-10  Chris Demetriou  <[e-mail]>

	* sb1.igen (DIV.PS, RECIP.PS, RSQRT.PS, SQRT.PS): New.

2004-04-09  Chris Demetriou  <[e-mail]>

	* mips.igen (check_fmt): Remove.
	(ABS.fmt, ADD.fmt, C.cond.fmta, C.cond.fmtb, 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.fmt, MOV.fmt, MOVtf.fmt, MOVN.fmt, MOVZ.fmt)
	(MSUB.fmt, MUL.fmt, NEG.fmt, NMADD.fmt, NMSUB.fmt, RECIP.fmt)
	(ROUND.L.fmt, ROUND.W.fmt, RSQRT.fmt, SQRT.fmt, SUB.fmt)
	(TRUNC.L.fmt, TRUNC.W): Explicitly specify allowed FPU formats.
	(check_fmt_p, CEIL.L.fmt, CEIL.W, DIV.fmt, FLOOR.L.fmt)
	(FLOOR.W.fmt, RECIP.fmt, ROUND.L.fmt, ROUND.W.fmt, RSQRT.fmt)
	(SQRT.fmt, TRUNC.L.fmt, TRUNC.W): Remove all uses of check_fmt.
	(C.cnd.fmta): Remove incorrect call to check_fmt_p.

2004-04-09  Chris Demetriou  <[e-mail]>

	* sb1.igen (check_sbx): New function.
	(PABSDIFF.fmt, PABSDIFC.fmt, PAVG.fmt): Use check_sbx.

2004-03-29  Chris Demetriou  <[e-mail]>
	    Richard Sandiford  <[e-mail]>

	* sim-main.h (MIPS_MACH_HAS_MT_HILO_HAZARD)
	(MIPS_MACH_HAS_MULT_HILO_HAZARD, MIPS_MACH_HAS_DIV_HILO_HAZARD): New.
	* mips.igen (check_mt_hilo, check_mult_hilo, check_div_hilo): Provide
	separate implementations for mipsIV and mipsV.  Use new macros to
	determine whether the restrictions apply.

2004-01-19  Chris Demetriou  <[e-mail]>

	* mips.igen (check_mf_cycles, check_mt_hilo, check_mf_hilo)
	(check_mult_hilo): Improve comments.
	(check_div_hilo): Likewise.  Also, fork off a new version
	to handle mips32/mips64 (since there are no hazards to check
	in MIPS32/MIPS64).

2003-06-17  Richard Sandiford  <[e-mail]>

	* mips.igen (do_dmultx): Fix check for negative operands.

2003-05-16  Ian Lance Taylor  <[e-mail]>

	* Makefile.in (SHELL): Make sure this is defined.
	(various): Use $(SHELL) whenever we invoke move-if-change.

2003-05-03  Chris Demetriou  <[e-mail]>

	* cp1.c: Tweak attribution slightly.
	* cp1.h: Likewise.
	* mdmx.c: Likewise.
	* mdmx.igen: Likewise.
	* mips3d.igen: Likewise.
	* sb1.igen: Likewise.

2003-04-15  Richard Sandiford  <[e-mail]>

	* vr.igen (do_vr_mul_op): Zero-extend the low 32 bits of
	unsigned operands.

2003-02-27  Andrew Cagney  <[e-mail]>

	* interp.c (sim_open): Rename _bfd to bfd.
	(sim_create_inferior): Ditto.

2003-01-14  Chris Demetriou  <[e-mail]>

	* mips.igen (LUXC1, SUXC1): New, for mipsV and mips64.

2003-01-14  Chris Demetriou  <[e-mail]>

	* mips.igen (EI, DI): Remove.

2003-01-05  Richard Sandiford  <[e-mail]>

	* Makefile.in (tmp-run-multi): Fix mips16 filter.

2003-01-04  Richard Sandiford  <[e-mail]>
	    Andrew Cagney  <[e-mail]>
	    Gavin Romig-Koch  <[e-mail]>
	    Graydon Hoare  <[e-mail]>
	    Aldy Hernandez  <[e-mail]>
	    Dave Brolley  <[e-mail]>
	    Chris Demetriou  <[e-mail]>

	* configure.in (mips64vr*): Define TARGET_ENABLE_FR to 1.
	(sim_mach_default): New variable.
	(mips64vr-*-*, mips64vrel-*-*): New configurations.
	Add a new simulator generator, MULTI.
	* configure: Regenerate.
	* Makefile.in (SIM_MULTI_OBJ, SIM_EXTRA_DISTCLEAN): New variables.
	(multi-run.o): New dependency.
	(SIM_MULTI_ALL, SIM_MULTI_IGEN_CONFIGS): New variables.
	(tmp-mach-multi, tmp-itable-multi, tmp-run-multi): New rules.
	(tmp-multi): Combine them.
	(BUILT_SRC_FROM_MULTI): New variable.  Depend on tmp-multi.
	(clean-extra): Remove sources in BUILT_SRC_FROM_MULTI.
	(distclean-extra): New rule.
	* sim-main.h: Include bfd.h.
	(MIPS_MACH): New macro.
	* mips.igen (vr4120, vr5400, vr5500): New models.
	(clo, clz, dclo, dclz, madd, maddu, msub, msub, mul): Add *vr5500.
	* vr.igen: Replace with new version.

2003-01-04  Chris Demetriou  <[e-mail]>

	* configure.in: Use SIM_AC_OPTION_RESERVED_BITS(1).
	* configure: Regenerate.

2002-12-31  Chris Demetriou  <[e-mail]>

	* sim-main.h (check_branch_bug, mark_branch_bug): Remove.
	* mips.igen: Remove all invocations of check_branch_bug and
	mark_branch_bug.

2002-12-16  Chris Demetriou  <[e-mail]>

        * tconfig.in: Include "gdb/callback.h" and "gdb/remote-sim.h".

2002-07-30  Chris Demetriou  <[e-mail]>

	* mips.igen (do_load_double, do_store_double): New functions.
	(LDC1, SDC1): Rename to...
	(LDC1b, SDC1b): respectively.
	(LDC1a, SDC1a): New instructions for MIPS II and MIPS32 support.

2002-07-29  Michael Snyder  <[e-mail]>

	* cp1.c (fp_recip2): Modify initialization expression so that
	GCC will recognize it as constant.

2002-06-18  Chris Demetriou  <[e-mail]>

	* mdmx.c (SD_): Delete.
	(Unpredictable): Re-define, for now, to directly invoke
	unpredictable_action().
	(mdmx_acc_op): Fix error in .ob immediate handling.

2002-06-18  Andrew Cagney  <[e-mail]>

	* interp.c (sim_firmware_command): Initialize `address'.

2002-06-16  Andrew Cagney  <[e-mail]>

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

2002-06-14  Chris Demetriou  <[e-mail]>
            Ed Satterthwaite  <[e-mail]>

	* mips3d.igen: New file which contains MIPS-3D ASE instructions.
	* Makefile.in (IGEN_INCLUDE): Add mips3d.igen.
	* mips.igen: Include mips3d.igen.
	(mips3d): New model name for MIPS-3D ASE instructions.
	(CVT.W.fmt): Don't use this instruction for word (source) format
	instructions. 
	* cp1.c (fp_binary_r, fp_add_r, fp_mul_r, fpu_inv1, fpu_inv1_32)
	(fpu_inv1_64, fp_recip1, fp_recip2, fpu_inv_sqrt1, fpu_inv_sqrt1_32)
	(fpu_inv_sqrt1_64, fp_rsqrt1, fp_rsqrt2): New functions.
	(NR_FRAC_GUARD, IMPLICIT_1): New macros.
	* sim-main.h (fmt_pw, CompareAbs, AddR, MultiplyR, Recip1, Recip2)
	(RSquareRoot1, RSquareRoot2): New macros.
	(fp_add_r, fp_mul_r, fp_recip1, fp_recip2, fp_rsqrt1)
	(fp_rsqrt2): New functions.
	* configure.in: Add MIPS-3D support to mipsisa64 simulator.
	* configure: Regenerate.

2002-06-13  Chris Demetriou  <[e-mail]>
            Ed Satterthwaite  <[e-mail]>

	* cp1.c (FP_PS_upper, FP_PS_lower, FP_PS_cat, FPQNaN_PS): New macros.
	(value_fpr, store_fpr, fp_cmp, fp_unary, fp_binary, fp_mac)
	(fp_inv_sqrt, fpu_format_name): Add paired-single support.
	(convert): Note that this function is not used for paired-single
	format conversions.
	(ps_lower, ps_upper, pack_ps, convert_ps): New functions.
	* mips.igen (FMT, MOVtf.fmt): Add paired-single support.
	(check_fmt_p): Enable paired-single support.
	(ALNV.PS, CVT.PS.S, CVT.S.PL, CVT.S.PU, PLL.PS, PLU.PS, PUL.PS)
	(PUU.PS): New instructions.
	(CVT.S.fmt): Don't use this instruction for paired-single format
	destinations.
	* sim-main.h (FP_formats): New value 'fmt_ps.'
	(ps_lower, ps_upper, pack_ps, convert_ps): New prototypes.
	(PSLower, PSUpper, PackPS, ConvertPS): New macros.

2002-06-12  Chris Demetriou  <[e-mail]>

	* mips.igen: Fix formatting of function calls in
	many FP operations.

2002-06-12  Chris Demetriou  <[e-mail]>

	* mips.igen (MOVN, MOVZ): Trace result.
	(TNEI): Print "tnei" as the opcode name in traces.
	(CEIL.W): Add disassembly string for traces.
	(RSQRT.fmt): Make location of disassembly string consistent
	with other instructions.

2002-06-12  Chris Demetriou  <[e-mail]>

	* mips.igen (X): Delete unused function.

2002-06-08  Andrew Cagney  <[e-mail]>

	* interp.c: Include "gdb/callback.h" and "gdb/remote-sim.h".

2002-06-07  Chris Demetriou  <[e-mail]>
            Ed Satterthwaite  <[e-mail]>

	* cp1.c (inner_mac, fp_mac, inner_rsqrt, fp_inv_sqrt)
	(fp_rsqrt, fp_madd, fp_msub, fp_nmadd, fp_nmsub): New functions.
	* sim-main.h (fp_rsqrt, fp_madd, fp_msub, fp_nmadd)
	(fp_nmsub): New prototypes.
	(RSquareRoot, MultiplyAdd, MultiplySub, NegMultiplyAdd)
	(NegMultiplySub): New defines.
	* mips.igen (RSQRT.fmt): Use RSquareRoot().
	(MADD.D, MADD.S): Replace with...
	(MADD.fmt): New instruction.
	(MSUB.D, MSUB.S): Replace with...
	(MSUB.fmt): New instruction.
	(NMADD.D, NMADD.S): Replace with...
	(NMADD.fmt): New instruction.
	(NMSUB.D, MSUB.S): Replace with...
	(NMSUB.fmt): New instruction.

2002-06-07  Chris Demetriou  <[e-mail]>
            Ed Satterthwaite  <[e-mail]>

	* cp1.c: Fix more comment spelling and formatting.
	(value_fcr, store_fcr): Use fenr_FS rather than hard-coding value.
	(denorm_mode): New function.
	(fpu_unary, fpu_binary): Round results after operation, collect
	status from rounding operations, and update the FCSR.
	(convert): Collect status from integer conversions and rounding
	operations, and update the FCSR.  Adjust NaN values that result
	from conversions.  Convert to use sim_io_eprintf rather than
	fprintf, and remove some debugging code.
	* cp1.h (fenr_FS): New define.

2002-06-07  Chris Demetriou  <[e-mail]>

	* cp1.c (convert): Remove unusable debugging code, and move MIPS
	rounding mode to sim FP rounding mode flag conversion code into...
	(rounding_mode): New function.

2002-06-07  Chris Demetriou  <[e-mail]>

	* cp1.c: Clean up formatting of a few comments.
	(value_fpr): Reformat switch statement.

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

	* cp1.h: New file.
	* sim-main.h: Include cp1.h.
	(SETFCC, GETFCC, IR, UF, OF, DX, IO, UO, FP_FLAGS, FP_ENABLE)
	(FP_CAUSE, GETFS, FP_RM_NEAREST, FP_RM_TOZERO, FP_RM_TOPINF)
	(FP_RM_TOMINF, GETRM): Remove.  Moved to cp1.h.
	(FP_FS, FP_MASK_RM, FP_SH_RM, Nan, Less, Equal): Remove.
	(value_fcr, store_fcr, test_fcsr, fp_cmp): New prototypes.
	(ValueFCR, StoreFCR, TestFCSR, Compare): New macros.
	* cp1.c: Don't include sim-fpu.h; already included by
	sim-main.h.  Clean up formatting of some comments.
	(NaN, Equal, Less): Remove.
	(test_fcsr, value_fcr, store_fcr, update_fcsr, fp_test)
	(fp_cmp): New functions.
	* mips.igen (do_c_cond_fmt): Remove.
	(C.cond.fmta, C.cond.fmtb): Replace uses of do_c_cond_fmt_a with
	Compare.  Add result tracing.
	(CxC1): Remove, replace with...
	(CFC1a, CFC1b, CFC1c, CTC1a, CTC1b, CTC1c): New instructions.
	(DMxC1): Remove, replace with...
	(DMFC1a, DMFC1b, DMTC1a, DMTC1b): New instructions.
	(MxC1): Remove, replace with... 
	(MFC1a, MFC1b, MTC1a, MTC1b): New instructions.  

2002-06-04  Chris Demetriou  <[e-mail]>

	* sim-main.h (FGRIDX): Remove, replace all uses with...
	(FGR_BASE): New macro.
	(FP0_REGNUM, FCRCS_REGNUM, FCRIR_REGNUM): New macros.
	(_sim_cpu): Move 'fgr' member to be right before 'fpr_state' member.
	(NR_FGR, FGR): Likewise.
	* interp.c: Replace all uses of FGRIDX with FGR_BASE.
	* mips.igen: Likewise.

2002-06-04  Chris Demetriou  <[e-mail]>

	* cp1.c: Add an FSF Copyright notice to this file.

2002-06-04  Chris Demetriou  <[e-mail]>
            Ed Satterthwaite  <[e-mail]>

	* cp1.c (Infinity): Remove.
	* sim-main.h (Infinity): Likewise.

	* cp1.c (fp_unary, fp_binary): New functions.
	(fp_abs, fp_neg, fp_add, fp_sub, fp_mul, fp_div, fp_recip)
	(fp_sqrt): New functions, implemented in terms of the above.
	(AbsoluteValue, Negate, Add, Sub, Multiply, Divide)
	(Recip, SquareRoot): Remove (replaced by functions above).
	* sim-main.h (fp_abs, fp_neg, fp_add, fp_sub, fp_mul, fp_div)
	(fp_recip, fp_sqrt): New prototypes.
	(AbsoluteValue, Negate, Add, Sub, Multiply, Divide)
	(Recip, SquareRoot): Replace prototypes with #defines which
	invoke the functions above.
	
2002-06-03  Chris Demetriou  <[e-mail]>

	* sim-main.h (Nan, Infinity, Less, Equal, AbsoluteValue, Negate)
	(Add, Sub, Multiply, Divide, Recip, SquareRoot): Move lower in
	file, remove PARAMS from prototypes.
	(value_fpr, store_fpr, convert): Likewise.  Use SIM_STATE to provide
	simulator state arguments.
	(ValueFPR, StoreFPR, Convert): Move lower in file.  Use SIM_ARGS to
	pass simulator state arguments.
	* cp1.c (SD): Redefine as CPU_STATE(cpu).
	(store_fpr, convert): Remove 'sd' argument.
	(value_fpr): Likewise.  Convert to use 'SD' instead.

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

	* cp1.c (Min, Max): Remove #if 0'd functions.
	* sim-main.h (Min, Max): Remove.

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

	* cp1.c: fix formatting of switch case and default labels.
	* interp.c: Likewise.
	* sim-main.c: Likewise.

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

	* cp1.c: Clean up comments which describe FP formats.
	 (FPQNaN_DOUBLE, FPQNaN_LONG): Generate using UNSIGNED64.

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

	* configure.in (mipsisa64sb1*-*-*): New target for supporting
	Broadcom SiByte SB-1 processor configurations.
	* configure: Regenerate.
	* sb1.igen: New file.
	* mips.igen: Include sb1.igen.
	(sb1): New model.
	* Makefile.in (IGEN_INCLUDE): Add sb1.igen.
	* mdmx.igen: Add "sb1" model to all appropriate functions and
	instructions.
	* mdmx.c (AbsDiffOB, AvgOB, AccAbsDiffOB): New functions.
	(ob_func, ob_acc): Reference the above.
	(qh_acc): Adjust to keep the same size as ob_acc.
	* sim-main.h (status_SBX, MX_VECT_ABSD, MX_VECT_AVG, MX_AbsDiff)