darling-gdb/gas/doc/c-mips.texi

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@c Copyright 1991, 1992, 1993, 1994, 1995, 1997, 1999, 2000, 2001,
@c 2002, 2003, 2004
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@c Free Software Foundation, Inc.
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@c This is part of the GAS manual.
@c For copying conditions, see the file as.texinfo.
@ifset GENERIC
@page
@node MIPS-Dependent
@chapter MIPS Dependent Features
@end ifset
@ifclear GENERIC
@node Machine Dependencies
@chapter MIPS Dependent Features
@end ifclear
@cindex MIPS processor
@sc{gnu} @code{@value{AS}} for @sc{mips} architectures supports several
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different @sc{mips} processors, and MIPS ISA levels I through V, MIPS32,
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and MIPS64. For information about the @sc{mips} instruction set, see
@cite{MIPS RISC Architecture}, by Kane and Heindrich (Prentice-Hall).
For an overview of @sc{mips} assembly conventions, see ``Appendix D:
Assembly Language Programming'' in the same work.
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@menu
* MIPS Opts:: Assembler options
* MIPS Object:: ECOFF object code
* MIPS Stabs:: Directives for debugging information
* MIPS ISA:: Directives to override the ISA level
* MIPS symbol sizes:: Directives to override the size of symbols
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* MIPS autoextend:: Directives for extending MIPS 16 bit instructions
* MIPS insn:: Directive to mark data as an instruction
* MIPS option stack:: Directives to save and restore options
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* MIPS ASE instruction generation overrides:: Directives to control
generation of MIPS ASE instructions
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@end menu
@node MIPS Opts
@section Assembler options
The @sc{mips} configurations of @sc{gnu} @code{@value{AS}} support these
special options:
@table @code
@cindex @code{-G} option (MIPS)
@item -G @var{num}
This option sets the largest size of an object that can be referenced
implicitly with the @code{gp} register. It is only accepted for targets
that use @sc{ecoff} format. The default value is 8.
@cindex @code{-EB} option (MIPS)
@cindex @code{-EL} option (MIPS)
@cindex MIPS big-endian output
@cindex MIPS little-endian output
@cindex big-endian output, MIPS
@cindex little-endian output, MIPS
@item -EB
@itemx -EL
Any @sc{mips} configuration of @code{@value{AS}} can select big-endian or
little-endian output at run time (unlike the other @sc{gnu} development
tools, which must be configured for one or the other). Use @samp{-EB}
to select big-endian output, and @samp{-EL} for little-endian.
@cindex MIPS architecture options
@item -mips1
@itemx -mips2
@itemx -mips3
@itemx -mips4
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@itemx -mips5
@itemx -mips32
[ bfd/ChangeLog ] 2002-12-30 Chris Demetriou <cgd@broadcom.com> * aoutx.h (NAME(aout,machine_type)): Add bfd_mach_mipsisa32r2 case. * archures.c (bfd_mach_mipsisa32r2): New define. * bfd-in2.h: Regenerate. * cpu-mips.c (I_mipsisa32r2): New enum value. (arch_info_struct): Add entry for I_mipsisa32r2. * elfxx-mips.c (elf_mips_isa, _bfd_elf_mips_mach) (_bfd_mips_elf_print_private_bfd_data): Handle E_MIPS_ARCH_32R2. (_bfd_mips_elf_final_write_processing): Add bfd_mach_mipsisa32r2 case. (_bfd_mips_elf_merge_private_bfd_data): Handle merging of binaries marked as using MIPS32 Release 2. [ binutils/ChangeLog ] 2002-12-30 Chris Demetriou <cgd@broadcom.com> * doc/binutils.texi (objdump): Note MIPS HWR (Hardware Register) changes in MIPS -M options. [ gas/ChangeLog ] 2002-12-30 Chris Demetriou <cgd@broadcom.com> * configure.in: Recognize mipsisa32r2, mipsisa32r2el, and CPU variants. * configure: Regenerate. * config/tc-mips.c (ISA_HAS_DROR, ISA_HAS_ROR): New defines. (macro_build): Handle "K" operand. (macro2): Use ISA_HAS_DROR and ISA_HAS_ROR in the places where CPU_HAS_DROR and CPU_HAS_ROR are currently used. (mips_ip): New variable "lastpos", and implement "+A", "+B", and "+C" operands for MIPS32 Release 2 ins/ext instructions. Implement "K" operand for MIPS32 Release 2 rdhwr instruction. (validate_mips_insn): Implement "+" as a way to extend the allowed operands, and implement "K", "+A", "+B", and "+C" operands. (OPTION_MIPS32R2): New define. (md_longopts): Add entry for OPTION_MIPS32R2. (OPTION_ELF_BASE): Adjust to accomodate OPTIONS_MIPS32R2. (md_parse_option): Handle OPTION_MIPS32R2. (s_mipsset): Reimplement handling of ".set mipsN" options and add support for ".set mips32r2". (mips_cpu_info_table): Add entry for "mips32r2" (MIPS32 Release 2). (md_show_usage): Document "-mips32r2" option. * doc/as.texinfo: Document "-mips32r2" option. * doc/c-mips.texi: Likewise. [ gas/testsuite/ChangeLog ] 2002-12-30 Chris Demetriou <cgd@broadcom.com> * gas/mips/cp0-names-mips32r2.d: New test. * gas/mips/hwr-names-mips32r2.d: New test. * gas/mips/hwr-names-numeric.d: New test. * gas/mips/hwr-names.s: New test source file. * gas/mips/mips32r2.d: New test. * gas/mips/mips32r2.s: New test source file. * gas/mips/mips32r2-ill.l: New test. * gas/mips/mips32r2-ill.s: New test source file. * gas/mips/mips.exp: Add mips32r2 architecture data array entry. Run new tests mentioned above. [ include/elf/ChangeLog ] 2002-12-30 Chris Demetriou <cgd@broadcom.com> * mips.h (E_MIPS_ARCH_32R2): New define. [ include/opcode/ChangeLog ] 2002-12-30 Chris Demetriou <cgd@broadcom.com> * mips.h: Document "+" as the start of two-character operand type names, and add new "K", "+A", "+B", and "+C" operand types. (OP_MASK_INSMSB, OP_SH_INSMSB, OP_MASK_EXTMSB) (OP_SH_EXTMSB, INSN_ISA32R2, ISA_MIPS32R2, CPU_MIPS32R2): New defines. [ opcodes/ChangeLog ] 2002-12-30 Chris Demetriou <cgd@broadcom.com> * mips-dis.c (mips_cp0_names_mips3264r2, mips_hwr_names_numeric) (mips_hwr_names_mips3264r2): New arrays. (mips_arch_choice): New "hwr_names" member. (mips_arch_choices): Adjust for structure change, and add a new entry for "mips32r2" ISA. (mips_hwr_names): New variable. (set_default_mips_dis_options): Set mips_hwr_names. (parse_mips_dis_option): New "hwr-names" option which sets mips_hwr_names, and adjust "reg-names=ARCH" to set mips_hwr_names. (print_insn_arg): Change return type to "int" and use that to indicate number of characters consumed. Add support for "+" operand extension character, "+A", "+B", "+C", and "K" operands. (print_insn_mips): Adjust for changes to print_insn_arg. (print_mips_disassembler_options): Adjust for "hwr-names" addition and "reg-names" change. * mips-opc (I33): New define (shorthand for INSN_ISA32R2). (mips_builtin_opcodes): Note that "nop" and "ssnop" are special forms of "sll". Add new MIPS32 Release 2 instructions: ehb, di, ei, ext, ins, jr.hb, jalr.hb, mfhc1, mfhc2, mthc1, mthc2, rdhwr, rdpgpr, seb, seh, synci, wrpgpr, wsbh. Note that hardware rotate instructions (ror, rorv) can be used on MIPS32 Release 2, and add the official mnemonics for them (rotr, rotrv) and the similar "rotl" mnemonic for left-rotate.
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@itemx -mips32r2
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@itemx -mips64
[ bfd/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * archures.c (bfd_mach_mipsisa64r2): New define. * bfd-in2.h: Regenerate. * aoutx.h (NAME(aout,machine_type)): Handle bfd_mach_mipsisa64r2. * cpu-mips.c (I_mipsisa64r2): New enum value. (arch_info_struct): Add entry for I_mipsisa64r2. * elfxx-mips.c (_bfd_elf_mips_mach) (_bfd_mips_elf_print_private_bfd_data): Handle E_MIPS_ARCH_64R2. (mips_set_isa_flags): Add bfd_mach_mipsisa64r2 case. (mips_mach_extensions): Add entry for bfd_mach_mipsisa64r2. [ binutils/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * readelf.c (get_machine_flags): Handle E_MIPS_ARCH_64R2. [ gas/Changelog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * configure.in (mipsisa64r2, mipsisa64r2el, mipsisa64r2*): New CPUs. * configure: Regenerate. * config/tc-mips.c (imm2_expr): New variable. (md_assemble, mips16_ip): Initialize imm2_expr. (ISA_HAS_64BIT_REGS, ISA_HAS_DROR, ISA_HAS_ROR): Add ISA_MIPS64R2. (macro_build): Handle +A, +B, +C, +E, +F, +G, and +H format operands. (macro): Handle M_DEXT and M_DINS. (validate_mips_insn): Handle +E, +F, +G, +H, and +I format operands. (mips_ip): Likewise. (OPTION_MIPS64R2): New define. (md_longopts): New entry for -mips64r2 (OPTION_MIPS64R2). OPTION_ASE_BASE): Increase to compensate for OPTION_MIPS64R2. (md_parse_option): Handle OPTION_MIPS64R2. (s_mipsset): Handle setting "mips64r2" ISA. (mips_cpu_info_table): Add mips64r2. (md_show_usage): Document -mips64r2 option. * doc/as.texinfo: Docuemnt -mips64r2 option. * doc/c-mips.texi: Likewise. [ gas/testsuite/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * gas/mips/cp0-names-mips64r2.d: New file. * gas/mips/cp0sel-names-mips64r2.d: New file. * gas/mips/elf_arch_mips64r2.d: New file. * gas/mips/hwr-names-mips64r2.d: New file. * gas/mips/mips32r2-ill-fp64.l: New file. * gas/mips/mips32r2-ill-fp64.s: New file. * gas/mips/mips64r2-ill.l: New file. * gas/mips/mips64r2-ill.s: New file. * gas/mips/mips64r2.d: New file. * gas/mips/mips64r2.s: New file. * gas/mips/mips.exp: Define "mips64r2" arch, and run new tests. [ include/elf/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips.h (E_MIPS_ARCH_64R2): New define. [ include/opcode/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips.h: Document +E, +F, +G, +H, and +I operand types. Update documentation of I, +B and +C operand types. (INSN_ISA64R2, ISA_MIPS64R2, CPU_MIPS64R2): New defines. (M_DEXT, M_DINS): New enum values. [ ld/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * ldmain.c (get_emulation): Ignore "-mips64r2". [ ld/testsuite/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * ld-mips-elf/mips-elf-flags.exp: Add tests for combinations with MIPS64r2. [ opcodes/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips-dis.c (mips_arch_choices): Add entry for "mips64r2" (print_insn_args): Add handing for +E, +F, +G, and +H. * mips-opc.c (I65): New define for MIPS64r2. (mips_builtin_opcodes): Add "dext", "dextm", "dextu", "dins", "dinsm", "dinsu", "drotl", "drotr", "drotr32", "drotrv", "dsbh", and "dshd" for MIPS64r2. Adjust "dror", "dror32", and "drorv" to be supported on MIPS64r2.
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@itemx -mips64r2
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Generate code for a particular MIPS Instruction Set Architecture level.
@samp{-mips1} corresponds to the @sc{r2000} and @sc{r3000} processors,
@samp{-mips2} to the @sc{r6000} processor, @samp{-mips3} to the
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@sc{r4000} processor, and @samp{-mips4} to the @sc{r8000} and
[ bfd/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * archures.c (bfd_mach_mipsisa64r2): New define. * bfd-in2.h: Regenerate. * aoutx.h (NAME(aout,machine_type)): Handle bfd_mach_mipsisa64r2. * cpu-mips.c (I_mipsisa64r2): New enum value. (arch_info_struct): Add entry for I_mipsisa64r2. * elfxx-mips.c (_bfd_elf_mips_mach) (_bfd_mips_elf_print_private_bfd_data): Handle E_MIPS_ARCH_64R2. (mips_set_isa_flags): Add bfd_mach_mipsisa64r2 case. (mips_mach_extensions): Add entry for bfd_mach_mipsisa64r2. [ binutils/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * readelf.c (get_machine_flags): Handle E_MIPS_ARCH_64R2. [ gas/Changelog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * configure.in (mipsisa64r2, mipsisa64r2el, mipsisa64r2*): New CPUs. * configure: Regenerate. * config/tc-mips.c (imm2_expr): New variable. (md_assemble, mips16_ip): Initialize imm2_expr. (ISA_HAS_64BIT_REGS, ISA_HAS_DROR, ISA_HAS_ROR): Add ISA_MIPS64R2. (macro_build): Handle +A, +B, +C, +E, +F, +G, and +H format operands. (macro): Handle M_DEXT and M_DINS. (validate_mips_insn): Handle +E, +F, +G, +H, and +I format operands. (mips_ip): Likewise. (OPTION_MIPS64R2): New define. (md_longopts): New entry for -mips64r2 (OPTION_MIPS64R2). OPTION_ASE_BASE): Increase to compensate for OPTION_MIPS64R2. (md_parse_option): Handle OPTION_MIPS64R2. (s_mipsset): Handle setting "mips64r2" ISA. (mips_cpu_info_table): Add mips64r2. (md_show_usage): Document -mips64r2 option. * doc/as.texinfo: Docuemnt -mips64r2 option. * doc/c-mips.texi: Likewise. [ gas/testsuite/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * gas/mips/cp0-names-mips64r2.d: New file. * gas/mips/cp0sel-names-mips64r2.d: New file. * gas/mips/elf_arch_mips64r2.d: New file. * gas/mips/hwr-names-mips64r2.d: New file. * gas/mips/mips32r2-ill-fp64.l: New file. * gas/mips/mips32r2-ill-fp64.s: New file. * gas/mips/mips64r2-ill.l: New file. * gas/mips/mips64r2-ill.s: New file. * gas/mips/mips64r2.d: New file. * gas/mips/mips64r2.s: New file. * gas/mips/mips.exp: Define "mips64r2" arch, and run new tests. [ include/elf/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips.h (E_MIPS_ARCH_64R2): New define. [ include/opcode/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips.h: Document +E, +F, +G, +H, and +I operand types. Update documentation of I, +B and +C operand types. (INSN_ISA64R2, ISA_MIPS64R2, CPU_MIPS64R2): New defines. (M_DEXT, M_DINS): New enum values. [ ld/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * ldmain.c (get_emulation): Ignore "-mips64r2". [ ld/testsuite/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * ld-mips-elf/mips-elf-flags.exp: Add tests for combinations with MIPS64r2. [ opcodes/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips-dis.c (mips_arch_choices): Add entry for "mips64r2" (print_insn_args): Add handing for +E, +F, +G, and +H. * mips-opc.c (I65): New define for MIPS64r2. (mips_builtin_opcodes): Add "dext", "dextm", "dextu", "dins", "dinsm", "dinsu", "drotl", "drotr", "drotr32", "drotrv", "dsbh", and "dshd" for MIPS64r2. Adjust "dror", "dror32", and "drorv" to be supported on MIPS64r2.
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@sc{r10000} processors. @samp{-mips5}, @samp{-mips32}, @samp{-mips32r2},
@samp{-mips64}, and @samp{-mips64r2}
correspond to generic
@sc{MIPS V}, @sc{MIPS32}, @sc{MIPS32 Release 2}, @sc{MIPS64},
and @sc{MIPS64 Release 2}
ISA processors, respectively. You can also switch
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instruction sets during the assembly; see @ref{MIPS ISA, Directives to
2001-06-28 Eric Christopher <echristo@redhat.com> H.J. Lu <hjl@gnu.org>         * config/tc-mips.c (mips_arch): New. Use mips_arch instead         of mips_cpu for the ISA selection.         (md_longopts): Add OPTION_MARCH and OPTION_MTUNE.         (md_parse_option): Handle OPTION_MARCH and OPTION_MTUNE. (mips_tune): New. Use mips_tune for scheduling and optimization issues. (append_insn): Use mips_tune and mips_arch. (macro_build): Ditto. (mips_ip): Ditto. (md_begin): Handle mips_arch, mips_tune and mips_cpu. For backwards compatability mips_cpu generates arch and tune. (md_show_usage): Document new behavior. * doc/c-mips.texi (MIPS Opts): Document -march and -mtune. Deprecate -mcpu. * NEWS: Update. 2001-06-28 Eric Christopher <echristo@redhat.com> * gas/mips/usd.d: Change for march/mtune. * gas/mips/ulh-xgot.d: Ditto. * gas/mips/uld.d: Ditto. * gas/mips/trunc.d: Ditto. * gas/mips/rol.d: Ditto. * gas/mips/nodelay.d: Ditto. * gas/mips/mul.d: Ditto. * gas/mips/mul-ilocks.d: Ditto. * gas/mips/trap20.d: Ditto. * gas/mips/mips4.d: Ditto. * gas/mips/mips16.d: Ditto. * gas/mips/lif-xgot.d: Ditto. * gas/mips/lif-svr4pic.d: Ditto. * gas/mips/ld-xgot.d: Ditto. * gas/mips/ld-svr4pic.d: Ditto. * gas/mips/ld-ilocks-addr32.d: Ditto. * gas/mips/lb-xgot.d: Ditto. * gas/mips/jal-xgot.d: Ditto. * gas/mips/jal-svr4pic.d: Ditto. * gas/mips/delay.d: Ditto. * gas/mips/lb-xgot-ilocks.d: Ditto. * gas/mips/div.d: Ditto. * gas/mips/break20.d: Ditto. * gas/mips/delay.d: Ditto. * gas/mips/elf_e_flags3.d: Ditto. * gas/mips/elf_e_flags4.d: Ditto. * gas/mips/lineno.d: Ditto. * gas/mips/mips16.d: Ditto. * gas/mips/mips4.d: Ditto. * gas/mips/mips4010.d: Ditto. * gas/mips/mips4650.d: Ditto.
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override the ISA level}.
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@item -mgp32
* doc/c-mips.tex (-mgp32, -mfp32): Added -mfp32, unified with -mgp32. * config/tc-mips.c (mips_fp32, mips_32bit_abi): New static variables. (md_long_opts): Add -mfp32 option. (md_parse_option): Handle it. Set mips_32bit_abi given -mabi=32. (md_show_usage): Show usage for -mfp32 and -mgp32. (HAVE_32BIT_GPRS, HAVE_32BIT_FPRS): New macros. (HAVE_64BIT_GPRS, HAVE_64BIT_FPRS): New macros, inverse of the above. (HAVE_32BIT_ADDRESSES): New macro. (load_register): Use HAVE_32BIT_GPRS to determine the register width. (load_address): Use HAVE_32BIT_ADDRESSES to determine the address size. (s_cprestore, s_cpadd): Likewise. (macro): Use HAVE_32BIT_GPRS to determine the width of registers used in branch and M_LI_D macros. Use HAVE_64BIT_FPRS to determine the width registers used in M_LI_DD macros. Use HAVE_32BIT_ADDRESSES to determine the width of addresses in load, store and jump macros. (macro2): Use HAVE_32BIT_GPRS to determine the width of registers used in set instructions; do not check the address size for them. Use HAVE_32BIT_ADDRESSES to determine the width of addresses in unaligned load and store macros. (mips_ip): Use the new macros to check the width of a register when processing float constants. Force a constant into memory if it is destined for an FPR and the FPRs are wider than the GPRs. Warn about odd FPR numbers if HAVE_32BIT_FPRS. Use HAVE_32BIT_GPRS rather than mips_gp32 to select synthetic instructions. (macro_build): Use HAVE_32BIT_GPRS rather than mips_gp32 to select synthetic instructions.
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@itemx -mfp32
Some macros have different expansions for 32-bit and 64-bit registers.
The register sizes are normally inferred from the ISA and ABI, but these
flags force a certain group of registers to be treated as 32 bits wide at
all times. @samp{-mgp32} controls the size of general-purpose registers
and @samp{-mfp32} controls the size of floating-point registers.
[ gas/ChangeLog ] * config/tc-mips.c (ISA_SUPPORTS_SMARTMIPS): Rename. (ISA_SUPPORTS_DSP_ASE, ISA_SUPPORTS_MT_ASE, ISA_HAS_64BIT_FPRS, ISA_HAS_MXHC1): New macros. (HAVE_32BIT_FPRS): Use ISA_HAS_64BIT_FPRS instead of ISA_HAS_64BIT_REGS. Formatting fixes. Improved comments. (mips_cpu_info): Change to use combined ASE/IS_ISA flag. (MIPS_CPU_IS_ISA, MIPS_CPU_ASE_SMARTMIPS, MIPS_CPU_ASE_DSP, MIPS_CPU_ASE_MT, MIPS_CPU_ASE_MIPS3D, MIPS_CPU_ASE_MDMX): New defines. (mips_after_parse_args): Change default handling of float register size to account for 32bit code with 64bit FP. Better sanity checking of ISA/ASE/ABI option combinations. (s_mipsset): Support switching of GPR and FPR sizes via .set {g,f}p={32,64,default}. Better sanity checking for .set ASE options. (mips_elf_final_processing): We should record the use of 64bit FP registers in 32bit code but we don't, because ELF header flags are a scarce ressource. (mips_cpu_info_table): Add ASE flags for CPUs with mandatory ASE extensions. Add 4ksc, 4kec, 4kem, 4kep, 4ksd, m4kp, 24kec, 24kef, 24kex, 34kc, 34kf, 34kx, 25kf CPU definitions. (mips_cpu_info_from_isa): Use MIPS_CPU_IS_ISA. * doc/c-mips.texi: Document .set {g,f}p={32,64,default}. Document missing -march options. Document .set arch=CPU. Move .set smartmips to ASE page. Use @code for .set FOO examples. [ gas/testsuite/Changelog ] * gas/mips/mips-gp32-fp64-pic.d, mips/mips-gp32-fp64.d, gas/mips/mips-gp64-fp32-pic.d, gas/mips/mips-gp64-fp32.l, gas/mips/mips-gp64-fp64.d: Adjust test cases to the changes assembler output. * gas/mips/mips-gp32-fp64.l, gas/mips/mips-gp64-fp32-pic.l: New files, catch assembler warnings.
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The @code{.set gp=32} and @code{.set fp=32} directives allow the size
of registers to be changed for parts of an object. The default value is
restored by @code{.set gp=default} and @code{.set fp=default}.
* doc/c-mips.tex (-mgp32, -mfp32): Added -mfp32, unified with -mgp32. * config/tc-mips.c (mips_fp32, mips_32bit_abi): New static variables. (md_long_opts): Add -mfp32 option. (md_parse_option): Handle it. Set mips_32bit_abi given -mabi=32. (md_show_usage): Show usage for -mfp32 and -mgp32. (HAVE_32BIT_GPRS, HAVE_32BIT_FPRS): New macros. (HAVE_64BIT_GPRS, HAVE_64BIT_FPRS): New macros, inverse of the above. (HAVE_32BIT_ADDRESSES): New macro. (load_register): Use HAVE_32BIT_GPRS to determine the register width. (load_address): Use HAVE_32BIT_ADDRESSES to determine the address size. (s_cprestore, s_cpadd): Likewise. (macro): Use HAVE_32BIT_GPRS to determine the width of registers used in branch and M_LI_D macros. Use HAVE_64BIT_FPRS to determine the width registers used in M_LI_DD macros. Use HAVE_32BIT_ADDRESSES to determine the width of addresses in load, store and jump macros. (macro2): Use HAVE_32BIT_GPRS to determine the width of registers used in set instructions; do not check the address size for them. Use HAVE_32BIT_ADDRESSES to determine the width of addresses in unaligned load and store macros. (mips_ip): Use the new macros to check the width of a register when processing float constants. Force a constant into memory if it is destined for an FPR and the FPRs are wider than the GPRs. Warn about odd FPR numbers if HAVE_32BIT_FPRS. Use HAVE_32BIT_GPRS rather than mips_gp32 to select synthetic instructions. (macro_build): Use HAVE_32BIT_GPRS rather than mips_gp32 to select synthetic instructions.
2001-08-02 10:15:24 +00:00
On some MIPS variants there is a 32-bit mode flag; when this flag is
set, 64-bit instructions generate a trap. Also, some 32-bit OSes only
save the 32-bit registers on a context switch, so it is essential never
to use the 64-bit registers.
@item -mgp64
[ gas/ChangeLog ] * config/tc-mips.c (ISA_SUPPORTS_SMARTMIPS): Rename. (ISA_SUPPORTS_DSP_ASE, ISA_SUPPORTS_MT_ASE, ISA_HAS_64BIT_FPRS, ISA_HAS_MXHC1): New macros. (HAVE_32BIT_FPRS): Use ISA_HAS_64BIT_FPRS instead of ISA_HAS_64BIT_REGS. Formatting fixes. Improved comments. (mips_cpu_info): Change to use combined ASE/IS_ISA flag. (MIPS_CPU_IS_ISA, MIPS_CPU_ASE_SMARTMIPS, MIPS_CPU_ASE_DSP, MIPS_CPU_ASE_MT, MIPS_CPU_ASE_MIPS3D, MIPS_CPU_ASE_MDMX): New defines. (mips_after_parse_args): Change default handling of float register size to account for 32bit code with 64bit FP. Better sanity checking of ISA/ASE/ABI option combinations. (s_mipsset): Support switching of GPR and FPR sizes via .set {g,f}p={32,64,default}. Better sanity checking for .set ASE options. (mips_elf_final_processing): We should record the use of 64bit FP registers in 32bit code but we don't, because ELF header flags are a scarce ressource. (mips_cpu_info_table): Add ASE flags for CPUs with mandatory ASE extensions. Add 4ksc, 4kec, 4kem, 4kep, 4ksd, m4kp, 24kec, 24kef, 24kex, 34kc, 34kf, 34kx, 25kf CPU definitions. (mips_cpu_info_from_isa): Use MIPS_CPU_IS_ISA. * doc/c-mips.texi: Document .set {g,f}p={32,64,default}. Document missing -march options. Document .set arch=CPU. Move .set smartmips to ASE page. Use @code for .set FOO examples. [ gas/testsuite/Changelog ] * gas/mips/mips-gp32-fp64-pic.d, mips/mips-gp32-fp64.d, gas/mips/mips-gp64-fp32-pic.d, gas/mips/mips-gp64-fp32.l, gas/mips/mips-gp64-fp64.d: Adjust test cases to the changes assembler output. * gas/mips/mips-gp32-fp64.l, gas/mips/mips-gp64-fp32-pic.l: New files, catch assembler warnings.
2006-05-23 15:37:20 +00:00
@itemx -mfp64
Assume that 64-bit registers are available. This is provided in the
interests of symmetry with @samp{-mgp32} and @samp{-mfp32}.
The @code{.set gp=64} and @code{.set fp=64} directives allow the size
of registers to be changed for parts of an object. The default value is
restored by @code{.set gp=default} and @code{.set fp=default}.
1999-05-03 07:29:11 +00:00
@item -mips16
@itemx -no-mips16
Generate code for the MIPS 16 processor. This is equivalent to putting
[ gas/ChangeLog ] * config/tc-mips.c (ISA_SUPPORTS_SMARTMIPS): Rename. (ISA_SUPPORTS_DSP_ASE, ISA_SUPPORTS_MT_ASE, ISA_HAS_64BIT_FPRS, ISA_HAS_MXHC1): New macros. (HAVE_32BIT_FPRS): Use ISA_HAS_64BIT_FPRS instead of ISA_HAS_64BIT_REGS. Formatting fixes. Improved comments. (mips_cpu_info): Change to use combined ASE/IS_ISA flag. (MIPS_CPU_IS_ISA, MIPS_CPU_ASE_SMARTMIPS, MIPS_CPU_ASE_DSP, MIPS_CPU_ASE_MT, MIPS_CPU_ASE_MIPS3D, MIPS_CPU_ASE_MDMX): New defines. (mips_after_parse_args): Change default handling of float register size to account for 32bit code with 64bit FP. Better sanity checking of ISA/ASE/ABI option combinations. (s_mipsset): Support switching of GPR and FPR sizes via .set {g,f}p={32,64,default}. Better sanity checking for .set ASE options. (mips_elf_final_processing): We should record the use of 64bit FP registers in 32bit code but we don't, because ELF header flags are a scarce ressource. (mips_cpu_info_table): Add ASE flags for CPUs with mandatory ASE extensions. Add 4ksc, 4kec, 4kem, 4kep, 4ksd, m4kp, 24kec, 24kef, 24kex, 34kc, 34kf, 34kx, 25kf CPU definitions. (mips_cpu_info_from_isa): Use MIPS_CPU_IS_ISA. * doc/c-mips.texi: Document .set {g,f}p={32,64,default}. Document missing -march options. Document .set arch=CPU. Move .set smartmips to ASE page. Use @code for .set FOO examples. [ gas/testsuite/Changelog ] * gas/mips/mips-gp32-fp64-pic.d, mips/mips-gp32-fp64.d, gas/mips/mips-gp64-fp32-pic.d, gas/mips/mips-gp64-fp32.l, gas/mips/mips-gp64-fp64.d: Adjust test cases to the changes assembler output. * gas/mips/mips-gp32-fp64.l, gas/mips/mips-gp64-fp32-pic.l: New files, catch assembler warnings.
2006-05-23 15:37:20 +00:00
@code{.set mips16} at the start of the assembly file. @samp{-no-mips16}
1999-05-03 07:29:11 +00:00
turns off this option.
@item -msmartmips
@itemx -mno-smartmips
Enables the SmartMIPS extensions to the MIPS32 instruction set, which
provides a number of new instructions which target smartcard and
cryptographic applications. This is equivalent to putting
[ gas/ChangeLog ] * config/tc-mips.c (ISA_SUPPORTS_SMARTMIPS): Rename. (ISA_SUPPORTS_DSP_ASE, ISA_SUPPORTS_MT_ASE, ISA_HAS_64BIT_FPRS, ISA_HAS_MXHC1): New macros. (HAVE_32BIT_FPRS): Use ISA_HAS_64BIT_FPRS instead of ISA_HAS_64BIT_REGS. Formatting fixes. Improved comments. (mips_cpu_info): Change to use combined ASE/IS_ISA flag. (MIPS_CPU_IS_ISA, MIPS_CPU_ASE_SMARTMIPS, MIPS_CPU_ASE_DSP, MIPS_CPU_ASE_MT, MIPS_CPU_ASE_MIPS3D, MIPS_CPU_ASE_MDMX): New defines. (mips_after_parse_args): Change default handling of float register size to account for 32bit code with 64bit FP. Better sanity checking of ISA/ASE/ABI option combinations. (s_mipsset): Support switching of GPR and FPR sizes via .set {g,f}p={32,64,default}. Better sanity checking for .set ASE options. (mips_elf_final_processing): We should record the use of 64bit FP registers in 32bit code but we don't, because ELF header flags are a scarce ressource. (mips_cpu_info_table): Add ASE flags for CPUs with mandatory ASE extensions. Add 4ksc, 4kec, 4kem, 4kep, 4ksd, m4kp, 24kec, 24kef, 24kex, 34kc, 34kf, 34kx, 25kf CPU definitions. (mips_cpu_info_from_isa): Use MIPS_CPU_IS_ISA. * doc/c-mips.texi: Document .set {g,f}p={32,64,default}. Document missing -march options. Document .set arch=CPU. Move .set smartmips to ASE page. Use @code for .set FOO examples. [ gas/testsuite/Changelog ] * gas/mips/mips-gp32-fp64-pic.d, mips/mips-gp32-fp64.d, gas/mips/mips-gp64-fp32-pic.d, gas/mips/mips-gp64-fp32.l, gas/mips/mips-gp64-fp64.d: Adjust test cases to the changes assembler output. * gas/mips/mips-gp32-fp64.l, gas/mips/mips-gp64-fp32-pic.l: New files, catch assembler warnings.
2006-05-23 15:37:20 +00:00
@code{.set smartmips} at the start of the assembly file.
@samp{-mno-smartmips} turns off this option.
[ gas/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * config/tc-mips.c (mips_set_options): New "ase_mips3d" member. (mips_opts): Initialize "ase_mips3d" member. (file_ase_mips3d): New variable. (CPU_HAS_MIPS3D): New macro. (md_begin): Initialize mips_opts.ase_mips3d and file_ase_mips3d based on command line options and configuration defaults. (macro_build, mips_ip): Accept MIPS-3D instructions if mips_opts.ase_mips3d is set. (OPTION_MIPS3D, OPTION_NO_MIPS3D, md_longopts, md_parse_option): Add support for "-mips3d" and "-no-mips3d" options. (OPTION_ELF_BASE): Move to accomodate new options. (s_mipsset): Support ".set mips3d" and ".set nomips3d". (mips_elf_final_processing): Add a comment indicating that a MIPS-3D ASE ELF header flag should be set, when one exists. * doc/as.texinfo: Document -mips3d and -no-mips3d options. * doc/c-mips.texi: Likewise, and document ".set mips3d" and ".set nomips3d" directives. [ gas/testsuite/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * gas/mips/mips64-mips3d.s: New file. * gas/mips/mips64-mips3d.d: Likewise. * gas/mips/mips.exp: Run new "mips64-mips3d" test. [ include/opcode/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * mips.h (INSN_MIPS3D): New definition used to mark MIPS-3D instructions. (OPCODE_IS_MEMBER): Adjust comments to indicate that ASE bit masks may be passed along with the ISA bitmask. [ opcodes/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * mips-dis.c (mips_isa_type): Add MIPS3D instructions to the ISA bit masks for bfd_mach_mips_sb1 and bfd_mach_mipsisa64. Add comments for bfd_mach_mipsisa32 and bfd_mach_mipsisa64 that indicate that they should dissassemble all applicable MIPS-specified ASEs. * mips-opc.c: Add support for MIPS-3D instructions. (M3D): New definition. * mips-opc.c: Update copyright years.
2002-03-16 03:09:19 +00:00
@item -mips3d
@itemx -no-mips3d
Generate code for the MIPS-3D Application Specific Extension.
This tells the assembler to accept MIPS-3D instructions.
@samp{-no-mips3d} turns off this option.
[ gas/ChangeLog ] 2002-05-30 Chris G. Demetriou <cgd@broadcom.com> Ed Satterthwaite <ehs@broadcom.com> * config/tc-mips.c (mips_set_options): New "ase_mdmx" member. (mips_opts): Initialize "ase_mdmx" member. (file_ase_mdmx): New variable. (CPU_HAS_MDMX): New macro. (md_begin): Initialize mips_opts.ase_mdmx and file_ase_mdmx based on command line options and configuration defaults. (macro_build): Note in comment that use of MDMX in macros is not currently allowed. (validate_mips_insn): Add support for the "O", "Q", "X", "Y", and "Z" MDMX operand types. (mips_ip): Accept MDMX instructions if mips_opts.ase_mdmx is set, and add support for the "O", "Q", "X", "Y", and "Z" MDMX operand types. (OPTION_MDMX, OPTION_NO_MDMX, md_longopts, md_parse_option): Add support for "-mdmx" and "-no-mdmx" options. (OPTION_ELF_BASE): Move to accomodate new options. (s_mipsset): Support ".set mdmx" and ".set nomdmx". (mips_elf_final_processing): Set MDMX ASE ELF header flag if file_ase_mdmx was set. * doc/as.texinfo: Document -mdmx and -no-mdmx options. * doc/c-mips.texi: Likewise, and document ".set mdmx" and ".set nomdmx" directives. [ gas/testsuite/ChangeLog ] 2002-05-30 Chris G. Demetriou <cgd@broadcom.com> * gas/mips/mips64-mdmx.s: New file. * gas/mips/mips64-mdmx.d: Likewise. * gas/mips/mips.exp: Run new "mips64-mdmx" test. [ include/opcode/ChangeLog ] 2002-05-30 Chris G. Demetriou <cgd@broadcom.com> * mips.h (OP_SH_ALN, OP_MASK_ALN, OP_SH_VSEL, OP_MASK_VSEL) (MDMX_FMTSEL_IMM_QH, MDMX_FMTSEL_IMM_OB, MDMX_FMTSEL_VEC_QH) (MDMX_FMTSEL_VEC_OB, INSN_READ_MDMX_ACC, INSN_WRITE_MDMX_ACC) (INSN_MDMX): New constants, for MDMX support. (opcode character list): Add "O", "Q", "X", "Y", and "Z" for MDMX. [ opcodes/ChangeLog ] 2002-05-30 Chris G. Demetriou <cgd@broadcom.com> Ed Satterthwaite <ehs@broadcom.com> * mips-dis.c (print_insn_arg): Add support for 'O', 'Q', 'X', 'Y', and 'Z' formats, for MDMX. (mips_isa_type): Add MDMX instructions to the ISA bit mask for bfd_mach_mipsisa64. * mips-opc.c: Add support for MDMX instructions. (MX): New definition. * mips-dis.c: Update copyright years to include 2002.
2002-05-31 01:17:18 +00:00
@item -mdmx
@itemx -no-mdmx
Generate code for the MDMX Application Specific Extension.
This tells the assembler to accept MDMX instructions.
@samp{-no-mdmx} turns off this option.
@item -mdsp
@itemx -mno-dsp
[ gas/ChangeLog ] * config/tc-mips.c (mips_set_options, mips_opts, file_ase_dspr2, ISA_SUPPORTS_DSPR2_ASE, MIPS_CPU_ASE_DSPR2): Add DSP R2 ASE support. (macro_build): Add case '2'. (macro): Expand M_BALIGN to nop, packrl.ph or balign. (validate_mips_insn): Add support for balign instruction. (mips_ip): Handle DSP R2 instructions. Support balign instruction. (OPTION_DSPR2, OPTION_NO_DSPR2, OPTION_COMPAT_ARCH_BASE, md_parse_option, mips_after_parse_args): Add -mdspr2 and -mno-dspr2 command line options. (s_mipsset): Add support for .set dspr2 and .set nodspr2 directives. (md_show_usage): Add -mdspr2 and -mno-dspr2 help output. * doc/c-mips.texi, doc/as.texinfo: Document -mdspr2, -mno-dspr2, .set dspr2, .set nodspr2. [ gas/testsuite/ChangeLog ] * gas/mips/mips32-dspr2.s, gas/mips/mips32-dspr2.d: New test for DSP R2. * gas/mips/mips.exp: Run new test. [ include/opcode/Changelog ] * mips.h (OP_SH_BP, OP_MASK_BP): Add support for balign instruction. (INSN_DSPR2): Add flag for DSP R2 instructions. (M_BALIGN): New macro. [ opcodes/ChangeLog ] * mips-dis.c (mips_arch_choices): Add DSP R2 support. (print_insn_args): Add support for balign instruction. * mips-opc.c (D33): New shortcut for DSP R2 instructions. (mips_builtin_opcodes): Add DSP R2 instructions. [ sim/mips/ChangeLog ] * Makefile.in (IGEN_INCLUDE): Add dsp2.igen. * configure.ac (mips*-sde-elf*, mipsisa32r2*-*-*, mipsisa64r2*-*-*): Add dsp2 to sim_igen_machine. * configure: Regenerate. * dsp.igen (do_ph_op): Add MUL support when op = 2. (do_ph_mulq): New function to support mulq_rs.ph and mulq_s.ph. (mulq_rs.ph): Use do_ph_mulq. (MFHI, MFLO, MTHI, MTLO): Move these instructions to mips.igen. * mips.igen: Add dsp2 model and include dsp2.igen. (MFHI, MFLO, MTHI, MTLO): Extend these instructions for for *mips32r2, *mips64r2, *dsp. (MADD, MADDU, MSUB, MSUBU, MULT, MULTU): Extend these instructions for *mips32r2, *mips64r2, *dsp2. * dsp2.igen: New file for MIPS DSP REV 2 ASE. [ sim/testsuite/sim/mips/ChangeLog ] * basic.exp: Run the dsp2 test. * utils-dsp.inc (dspckacc_astio, dspck_tsimm): New macro. * mips32-dsp2.s: New test.
2007-02-20 13:28:56 +00:00
Generate code for the DSP Release 1 Application Specific Extension.
This tells the assembler to accept DSP Release 1 instructions.
@samp{-mno-dsp} turns off this option.
[ gas/ChangeLog ] * config/tc-mips.c (mips_set_options, mips_opts, file_ase_dspr2, ISA_SUPPORTS_DSPR2_ASE, MIPS_CPU_ASE_DSPR2): Add DSP R2 ASE support. (macro_build): Add case '2'. (macro): Expand M_BALIGN to nop, packrl.ph or balign. (validate_mips_insn): Add support for balign instruction. (mips_ip): Handle DSP R2 instructions. Support balign instruction. (OPTION_DSPR2, OPTION_NO_DSPR2, OPTION_COMPAT_ARCH_BASE, md_parse_option, mips_after_parse_args): Add -mdspr2 and -mno-dspr2 command line options. (s_mipsset): Add support for .set dspr2 and .set nodspr2 directives. (md_show_usage): Add -mdspr2 and -mno-dspr2 help output. * doc/c-mips.texi, doc/as.texinfo: Document -mdspr2, -mno-dspr2, .set dspr2, .set nodspr2. [ gas/testsuite/ChangeLog ] * gas/mips/mips32-dspr2.s, gas/mips/mips32-dspr2.d: New test for DSP R2. * gas/mips/mips.exp: Run new test. [ include/opcode/Changelog ] * mips.h (OP_SH_BP, OP_MASK_BP): Add support for balign instruction. (INSN_DSPR2): Add flag for DSP R2 instructions. (M_BALIGN): New macro. [ opcodes/ChangeLog ] * mips-dis.c (mips_arch_choices): Add DSP R2 support. (print_insn_args): Add support for balign instruction. * mips-opc.c (D33): New shortcut for DSP R2 instructions. (mips_builtin_opcodes): Add DSP R2 instructions. [ sim/mips/ChangeLog ] * Makefile.in (IGEN_INCLUDE): Add dsp2.igen. * configure.ac (mips*-sde-elf*, mipsisa32r2*-*-*, mipsisa64r2*-*-*): Add dsp2 to sim_igen_machine. * configure: Regenerate. * dsp.igen (do_ph_op): Add MUL support when op = 2. (do_ph_mulq): New function to support mulq_rs.ph and mulq_s.ph. (mulq_rs.ph): Use do_ph_mulq. (MFHI, MFLO, MTHI, MTLO): Move these instructions to mips.igen. * mips.igen: Add dsp2 model and include dsp2.igen. (MFHI, MFLO, MTHI, MTLO): Extend these instructions for for *mips32r2, *mips64r2, *dsp. (MADD, MADDU, MSUB, MSUBU, MULT, MULTU): Extend these instructions for *mips32r2, *mips64r2, *dsp2. * dsp2.igen: New file for MIPS DSP REV 2 ASE. [ sim/testsuite/sim/mips/ChangeLog ] * basic.exp: Run the dsp2 test. * utils-dsp.inc (dspckacc_astio, dspck_tsimm): New macro. * mips32-dsp2.s: New test.
2007-02-20 13:28:56 +00:00
@item -mdspr2
@itemx -mno-dspr2
Generate code for the DSP Release 2 Application Specific Extension.
This option implies -mdsp.
This tells the assembler to accept DSP Release 2 instructions.
@samp{-mno-dspr2} turns off this option.
@item -mmt
@itemx -mno-mt
Generate code for the MT Application Specific Extension.
This tells the assembler to accept MT instructions.
@samp{-mno-mt} turns off this option.
@item -mfix7000
@itemx -mno-fix7000
Cause nops to be inserted if the read of the destination register
of an mfhi or mflo instruction occurs in the following two instructions.
@item -mfix-vr4120
@itemx -no-mfix-vr4120
Insert nops to work around certain VR4120 errata. This option is
intended to be used on GCC-generated code: it is not designed to catch
all problems in hand-written assembler code.
@item -mfix-vr4130
@itemx -no-mfix-vr4130
Insert nops to work around the VR4130 @samp{mflo}/@samp{mfhi} errata.
1999-05-03 07:29:11 +00:00
@item -m4010
@itemx -no-m4010
Generate code for the LSI @sc{r4010} chip. This tells the assembler to
accept the @sc{r4010} specific instructions (@samp{addciu}, @samp{ffc},
etc.), and to not schedule @samp{nop} instructions around accesses to
the @samp{HI} and @samp{LO} registers. @samp{-no-m4010} turns off this
option.
@item -m4650
@itemx -no-m4650
Generate code for the MIPS @sc{r4650} chip. This tells the assembler to accept
the @samp{mad} and @samp{madu} instruction, and to not schedule @samp{nop}
instructions around accesses to the @samp{HI} and @samp{LO} registers.
@samp{-no-m4650} turns off this option.
@itemx -m3900
@itemx -no-m3900
@itemx -m4100
@itemx -no-m4100
For each option @samp{-m@var{nnnn}}, generate code for the MIPS
@sc{r@var{nnnn}} chip. This tells the assembler to accept instructions
specific to that chip, and to schedule for that chip's hazards.
2001-06-28 Eric Christopher <echristo@redhat.com> H.J. Lu <hjl@gnu.org>         * config/tc-mips.c (mips_arch): New. Use mips_arch instead         of mips_cpu for the ISA selection.         (md_longopts): Add OPTION_MARCH and OPTION_MTUNE.         (md_parse_option): Handle OPTION_MARCH and OPTION_MTUNE. (mips_tune): New. Use mips_tune for scheduling and optimization issues. (append_insn): Use mips_tune and mips_arch. (macro_build): Ditto. (mips_ip): Ditto. (md_begin): Handle mips_arch, mips_tune and mips_cpu. For backwards compatability mips_cpu generates arch and tune. (md_show_usage): Document new behavior. * doc/c-mips.texi (MIPS Opts): Document -march and -mtune. Deprecate -mcpu. * NEWS: Update. 2001-06-28 Eric Christopher <echristo@redhat.com> * gas/mips/usd.d: Change for march/mtune. * gas/mips/ulh-xgot.d: Ditto. * gas/mips/uld.d: Ditto. * gas/mips/trunc.d: Ditto. * gas/mips/rol.d: Ditto. * gas/mips/nodelay.d: Ditto. * gas/mips/mul.d: Ditto. * gas/mips/mul-ilocks.d: Ditto. * gas/mips/trap20.d: Ditto. * gas/mips/mips4.d: Ditto. * gas/mips/mips16.d: Ditto. * gas/mips/lif-xgot.d: Ditto. * gas/mips/lif-svr4pic.d: Ditto. * gas/mips/ld-xgot.d: Ditto. * gas/mips/ld-svr4pic.d: Ditto. * gas/mips/ld-ilocks-addr32.d: Ditto. * gas/mips/lb-xgot.d: Ditto. * gas/mips/jal-xgot.d: Ditto. * gas/mips/jal-svr4pic.d: Ditto. * gas/mips/delay.d: Ditto. * gas/mips/lb-xgot-ilocks.d: Ditto. * gas/mips/div.d: Ditto. * gas/mips/break20.d: Ditto. * gas/mips/delay.d: Ditto. * gas/mips/elf_e_flags3.d: Ditto. * gas/mips/elf_e_flags4.d: Ditto. * gas/mips/lineno.d: Ditto. * gas/mips/mips16.d: Ditto. * gas/mips/mips4.d: Ditto. * gas/mips/mips4010.d: Ditto. * gas/mips/mips4650.d: Ditto.
2001-06-29 21:27:43 +00:00
@item -march=@var{cpu}
1999-05-03 07:29:11 +00:00
Generate code for a particular MIPS cpu. It is exactly equivalent to
@samp{-m@var{cpu}}, except that there are more value of @var{cpu}
understood. Valid @var{cpu} value are:
@quotation
2000,
3000,
3900,
4000,
4010,
4100,
4111,
vr4120,
vr4130,
vr4181,
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4300,
4400,
4600,
4650,
5000,
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rm5200,
rm5230,
rm5231,
rm5261,
rm5721,
vr5400,
vr5500,
1999-05-03 07:29:11 +00:00
6000,
2000-06-16 19:11:27 +00:00
rm7000,
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8000,
rm9000,
10000,
12000,
[ gas/ChangeLog ] * config/tc-mips.c (ISA_SUPPORTS_SMARTMIPS): Rename. (ISA_SUPPORTS_DSP_ASE, ISA_SUPPORTS_MT_ASE, ISA_HAS_64BIT_FPRS, ISA_HAS_MXHC1): New macros. (HAVE_32BIT_FPRS): Use ISA_HAS_64BIT_FPRS instead of ISA_HAS_64BIT_REGS. Formatting fixes. Improved comments. (mips_cpu_info): Change to use combined ASE/IS_ISA flag. (MIPS_CPU_IS_ISA, MIPS_CPU_ASE_SMARTMIPS, MIPS_CPU_ASE_DSP, MIPS_CPU_ASE_MT, MIPS_CPU_ASE_MIPS3D, MIPS_CPU_ASE_MDMX): New defines. (mips_after_parse_args): Change default handling of float register size to account for 32bit code with 64bit FP. Better sanity checking of ISA/ASE/ABI option combinations. (s_mipsset): Support switching of GPR and FPR sizes via .set {g,f}p={32,64,default}. Better sanity checking for .set ASE options. (mips_elf_final_processing): We should record the use of 64bit FP registers in 32bit code but we don't, because ELF header flags are a scarce ressource. (mips_cpu_info_table): Add ASE flags for CPUs with mandatory ASE extensions. Add 4ksc, 4kec, 4kem, 4kep, 4ksd, m4kp, 24kec, 24kef, 24kex, 34kc, 34kf, 34kx, 25kf CPU definitions. (mips_cpu_info_from_isa): Use MIPS_CPU_IS_ISA. * doc/c-mips.texi: Document .set {g,f}p={32,64,default}. Document missing -march options. Document .set arch=CPU. Move .set smartmips to ASE page. Use @code for .set FOO examples. [ gas/testsuite/Changelog ] * gas/mips/mips-gp32-fp64-pic.d, mips/mips-gp32-fp64.d, gas/mips/mips-gp64-fp32-pic.d, gas/mips/mips-gp64-fp32.l, gas/mips/mips-gp64-fp64.d: Adjust test cases to the changes assembler output. * gas/mips/mips-gp32-fp64.l, gas/mips/mips-gp64-fp32-pic.l: New files, catch assembler warnings.
2006-05-23 15:37:20 +00:00
4kc,
4km,
4kp,
4ksc,
4kec,
4kem,
4kep,
4ksd,
m4k,
m4kp,
24kc,
24kf,
24kx,
24kec,
24kef,
24kex,
34kc,
34kf,
34kx,
74kc,
74kf,
74kx,
[ gas/ChangeLog ] * config/tc-mips.c (ISA_SUPPORTS_SMARTMIPS): Rename. (ISA_SUPPORTS_DSP_ASE, ISA_SUPPORTS_MT_ASE, ISA_HAS_64BIT_FPRS, ISA_HAS_MXHC1): New macros. (HAVE_32BIT_FPRS): Use ISA_HAS_64BIT_FPRS instead of ISA_HAS_64BIT_REGS. Formatting fixes. Improved comments. (mips_cpu_info): Change to use combined ASE/IS_ISA flag. (MIPS_CPU_IS_ISA, MIPS_CPU_ASE_SMARTMIPS, MIPS_CPU_ASE_DSP, MIPS_CPU_ASE_MT, MIPS_CPU_ASE_MIPS3D, MIPS_CPU_ASE_MDMX): New defines. (mips_after_parse_args): Change default handling of float register size to account for 32bit code with 64bit FP. Better sanity checking of ISA/ASE/ABI option combinations. (s_mipsset): Support switching of GPR and FPR sizes via .set {g,f}p={32,64,default}. Better sanity checking for .set ASE options. (mips_elf_final_processing): We should record the use of 64bit FP registers in 32bit code but we don't, because ELF header flags are a scarce ressource. (mips_cpu_info_table): Add ASE flags for CPUs with mandatory ASE extensions. Add 4ksc, 4kec, 4kem, 4kep, 4ksd, m4kp, 24kec, 24kef, 24kex, 34kc, 34kf, 34kx, 25kf CPU definitions. (mips_cpu_info_from_isa): Use MIPS_CPU_IS_ISA. * doc/c-mips.texi: Document .set {g,f}p={32,64,default}. Document missing -march options. Document .set arch=CPU. Move .set smartmips to ASE page. Use @code for .set FOO examples. [ gas/testsuite/Changelog ] * gas/mips/mips-gp32-fp64-pic.d, mips/mips-gp32-fp64.d, gas/mips/mips-gp64-fp32-pic.d, gas/mips/mips-gp64-fp32.l, gas/mips/mips-gp64-fp64.d: Adjust test cases to the changes assembler output. * gas/mips/mips-gp32-fp64.l, gas/mips/mips-gp64-fp32-pic.l: New files, catch assembler warnings.
2006-05-23 15:37:20 +00:00
5kc,
5kf,
20kc,
25kf,
sb1,
sb1a
1999-05-03 07:29:11 +00:00
@end quotation
2001-06-28 Eric Christopher <echristo@redhat.com> H.J. Lu <hjl@gnu.org>         * config/tc-mips.c (mips_arch): New. Use mips_arch instead         of mips_cpu for the ISA selection.         (md_longopts): Add OPTION_MARCH and OPTION_MTUNE.         (md_parse_option): Handle OPTION_MARCH and OPTION_MTUNE. (mips_tune): New. Use mips_tune for scheduling and optimization issues. (append_insn): Use mips_tune and mips_arch. (macro_build): Ditto. (mips_ip): Ditto. (md_begin): Handle mips_arch, mips_tune and mips_cpu. For backwards compatability mips_cpu generates arch and tune. (md_show_usage): Document new behavior. * doc/c-mips.texi (MIPS Opts): Document -march and -mtune. Deprecate -mcpu. * NEWS: Update. 2001-06-28 Eric Christopher <echristo@redhat.com> * gas/mips/usd.d: Change for march/mtune. * gas/mips/ulh-xgot.d: Ditto. * gas/mips/uld.d: Ditto. * gas/mips/trunc.d: Ditto. * gas/mips/rol.d: Ditto. * gas/mips/nodelay.d: Ditto. * gas/mips/mul.d: Ditto. * gas/mips/mul-ilocks.d: Ditto. * gas/mips/trap20.d: Ditto. * gas/mips/mips4.d: Ditto. * gas/mips/mips16.d: Ditto. * gas/mips/lif-xgot.d: Ditto. * gas/mips/lif-svr4pic.d: Ditto. * gas/mips/ld-xgot.d: Ditto. * gas/mips/ld-svr4pic.d: Ditto. * gas/mips/ld-ilocks-addr32.d: Ditto. * gas/mips/lb-xgot.d: Ditto. * gas/mips/jal-xgot.d: Ditto. * gas/mips/jal-svr4pic.d: Ditto. * gas/mips/delay.d: Ditto. * gas/mips/lb-xgot-ilocks.d: Ditto. * gas/mips/div.d: Ditto. * gas/mips/break20.d: Ditto. * gas/mips/delay.d: Ditto. * gas/mips/elf_e_flags3.d: Ditto. * gas/mips/elf_e_flags4.d: Ditto. * gas/mips/lineno.d: Ditto. * gas/mips/mips16.d: Ditto. * gas/mips/mips4.d: Ditto. * gas/mips/mips4010.d: Ditto. * gas/mips/mips4650.d: Ditto.
2001-06-29 21:27:43 +00:00
@item -mtune=@var{cpu}
Schedule and tune for a particular MIPS cpu. Valid @var{cpu} values are
identical to @samp{-march=@var{cpu}}.
[gas/] * doc/c-mips.texi: Remove -mcpu. Document -mabi. * configure.in (MIPS_CPU_STRING_DEFAULT): New configuration macro. (USE_E_MIPS_ABI_O32, MIPS_DEFAULT_64BIT): New configuration macros. * configure, config.in: Regenerate. * config/tc-mips.c (file_mips_abi): Rename to mips_abi. (mips_set_options): Remove "abi" field. (mips_opts): Update accordingly. Replace all uses of mips_opts.abi with mips_abi. (mips_cpu): Remove. (mips_arch_string, mips_arch_info): New vars. (mips_tune_string, mips_tune_info): New vars. (ABI_NEEDS_32BIT_REGS, ABI_NEEDS_64BIT_REGS): New macros. (HAVE_32BIT_GPRS, HAVE_32BIT_FPRS): Don't check the ABI. (mips_isa_to_str, mips_cpu_to_str): Remove. (mips_ip): If the selected architecture is a generic ISA rather than a processor, only mention the ISA level in error messages. (OPTION_MCPU): Remove. (OPTION_FP64): New. (md_longopts): Add -mfp64, remove -mcpu. (mips_set_option_string): New fn. (md_parse_option): Make -mipsN update file_mips_isa rather than mips_opts.isa. Use mips_set_option_string to set -march or -mtune. Don't let -mgp32 and -mfp32 change the ABI. (show): Move to end of file. Constify string argument. (md_show_usage): Move to the end of the file. Read available architectures from mips_cpu_info_table. (mips_set_architecture): New fn. (mips_after_parse_args): Rework. Remove -mcpu handling. -mipsN is an alias for -march=mipsN. Don't change the ABI based on other flags. Infer the register size from the ABI as well as the architecture. Complain about more conflicting arguments. Unify logic with GCC. (s_mipsset): Don't change the ABI. (mips_elf_final_processing): Check USE_E_MIPS_ABI_O32. (mips_cpu_info_table): Remove Generic-MIPS* entries, keeping just "mipsN"-type entries. Remove entries that vary only in the manufacturer's prefix, or that have "000" replaced by "k". Remove TARGET_CPU entries. Make r2000 entry use CPU_R3000. (mips_strict_matching_cpu_name_p, mips_matching_cpu_name_p): New fns. (mips_parse_cpu): New fn. (mips_cpu_info_from_name, mips_cpu_info_from_cpu): Remove. (mips_cpu_info_from_isa): Minor formatting tweak. [gas/testsuite] * gas/mips/mips-gp32-fp64.d, * gas/mips/mips-gp32-fp64-pic.d: Add -mfp64.
2002-07-25 09:48:07 +00:00
@item -mabi=@var{abi}
Record which ABI the source code uses. The recognized arguments
are: @samp{32}, @samp{n32}, @samp{o64}, @samp{64} and @samp{eabi}.
1999-05-03 07:29:11 +00:00
@item -msym32
@itemx -mno-sym32
@cindex -msym32
@cindex -mno-sym32
Equivalent to adding @code{.set sym32} or @code{.set nosym32} to
the beginning of the assembler input. @xref{MIPS symbol sizes}.
1999-05-03 07:29:11 +00:00
@cindex @code{-nocpp} ignored (MIPS)
@item -nocpp
This option is ignored. It is accepted for command-line compatibility with
other assemblers, which use it to turn off C style preprocessing. With
@sc{gnu} @code{@value{AS}}, there is no need for @samp{-nocpp}, because the
@sc{gnu} assembler itself never runs the C preprocessor.
@item --construct-floats
@itemx --no-construct-floats
@cindex --construct-floats
@cindex --no-construct-floats
The @code{--no-construct-floats} option disables the construction of
double width floating point constants by loading the two halves of the
value into the two single width floating point registers that make up
the double width register. This feature is useful if the processor
support the FR bit in its status register, and this bit is known (by
the programmer) to be set. This bit prevents the aliasing of the double
width register by the single width registers.
By default @code{--construct-floats} is selected, allowing construction
of these floating point constants.
1999-05-03 07:29:11 +00:00
@item --trap
@itemx --no-break
@c FIXME! (1) reflect these options (next item too) in option summaries;
@c (2) stop teasing, say _which_ instructions expanded _how_.
@code{@value{AS}} automatically macro expands certain division and
multiplication instructions to check for overflow and division by zero. This
option causes @code{@value{AS}} to generate code to take a trap exception
rather than a break exception when an error is detected. The trap instructions
are only supported at Instruction Set Architecture level 2 and higher.
@item --break
@itemx --no-trap
Generate code to take a break exception rather than a trap exception when an
error is detected. This is the default.
@item -mpdr
@itemx -mno-pdr
Control generation of @code{.pdr} sections. Off by default on IRIX, on
elsewhere.
@item -mshared
@itemx -mno-shared
When generating code using the Unix calling conventions (selected by
@samp{-KPIC} or @samp{-mcall_shared}), gas will normally generate code
which can go into a shared library. The @samp{-mno-shared} option
tells gas to generate code which uses the calling convention, but can
not go into a shared library. The resulting code is slightly more
efficient. This option only affects the handling of the
@samp{.cpload} and @samp{.cpsetup} pseudo-ops.
1999-05-03 07:29:11 +00:00
@end table
@node MIPS Object
@section MIPS ECOFF object code
@cindex ECOFF sections
@cindex MIPS ECOFF sections
Assembling for a @sc{mips} @sc{ecoff} target supports some additional sections
besides the usual @code{.text}, @code{.data} and @code{.bss}. The
additional sections are @code{.rdata}, used for read-only data,
@code{.sdata}, used for small data, and @code{.sbss}, used for small
common objects.
@cindex small objects, MIPS ECOFF
@cindex @code{gp} register, MIPS
When assembling for @sc{ecoff}, the assembler uses the @code{$gp} (@code{$28})
register to form the address of a ``small object''. Any object in the
@code{.sdata} or @code{.sbss} sections is considered ``small'' in this sense.
For external objects, or for objects in the @code{.bss} section, you can use
the @code{@value{GCC}} @samp{-G} option to control the size of objects addressed via
@code{$gp}; the default value is 8, meaning that a reference to any object
eight bytes or smaller uses @code{$gp}. Passing @samp{-G 0} to
@code{@value{AS}} prevents it from using the @code{$gp} register on the basis
of object size (but the assembler uses @code{$gp} for objects in @code{.sdata}
or @code{sbss} in any case). The size of an object in the @code{.bss} section
is set by the @code{.comm} or @code{.lcomm} directive that defines it. The
size of an external object may be set with the @code{.extern} directive. For
example, @samp{.extern sym,4} declares that the object at @code{sym} is 4 bytes
in length, whie leaving @code{sym} otherwise undefined.
Using small @sc{ecoff} objects requires linker support, and assumes that the
@code{$gp} register is correctly initialized (normally done automatically by
the startup code). @sc{mips} @sc{ecoff} assembly code must not modify the
@code{$gp} register.
@node MIPS Stabs
@section Directives for debugging information
@cindex MIPS debugging directives
@sc{mips} @sc{ecoff} @code{@value{AS}} supports several directives used for
generating debugging information which are not support by traditional @sc{mips}
assemblers. These are @code{.def}, @code{.endef}, @code{.dim}, @code{.file},
@code{.scl}, @code{.size}, @code{.tag}, @code{.type}, @code{.val},
@code{.stabd}, @code{.stabn}, and @code{.stabs}. The debugging information
generated by the three @code{.stab} directives can only be read by @sc{gdb},
not by traditional @sc{mips} debuggers (this enhancement is required to fully
support C++ debugging). These directives are primarily used by compilers, not
assembly language programmers!
@node MIPS symbol sizes
@section Directives to override the size of symbols
@cindex @code{.set sym32}
@cindex @code{.set nosym32}
The n64 ABI allows symbols to have any 64-bit value. Although this
provides a great deal of flexibility, it means that some macros have
much longer expansions than their 32-bit counterparts. For example,
the non-PIC expansion of @samp{dla $4,sym} is usually:
@smallexample
lui $4,%highest(sym)
lui $1,%hi(sym)
daddiu $4,$4,%higher(sym)
daddiu $1,$1,%lo(sym)
dsll32 $4,$4,0
daddu $4,$4,$1
@end smallexample
whereas the 32-bit expansion is simply:
@smallexample
lui $4,%hi(sym)
daddiu $4,$4,%lo(sym)
@end smallexample
n64 code is sometimes constructed in such a way that all symbolic
constants are known to have 32-bit values, and in such cases, it's
preferable to use the 32-bit expansion instead of the 64-bit
expansion.
You can use the @code{.set sym32} directive to tell the assembler
that, from this point on, all expressions of the form
@samp{@var{symbol}} or @samp{@var{symbol} + @var{offset}}
have 32-bit values. For example:
@smallexample
.set sym32
dla $4,sym
lw $4,sym+16
sw $4,sym+0x8000($4)
@end smallexample
will cause the assembler to treat @samp{sym}, @code{sym+16} and
@code{sym+0x8000} as 32-bit values. The handling of non-symbolic
addresses is not affected.
The directive @code{.set nosym32} ends a @code{.set sym32} block and
reverts to the normal behavior. It is also possible to change the
symbol size using the command-line options @option{-msym32} and
@option{-mno-sym32}.
These options and directives are always accepted, but at present,
they have no effect for anything other than n64.
1999-05-03 07:29:11 +00:00
@node MIPS ISA
@section Directives to override the ISA level
@cindex MIPS ISA override
@kindex @code{.set mips@var{n}}
@sc{gnu} @code{@value{AS}} supports an additional directive to change
the @sc{mips} Instruction Set Architecture level on the fly: @code{.set
[ bfd/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * archures.c (bfd_mach_mipsisa64r2): New define. * bfd-in2.h: Regenerate. * aoutx.h (NAME(aout,machine_type)): Handle bfd_mach_mipsisa64r2. * cpu-mips.c (I_mipsisa64r2): New enum value. (arch_info_struct): Add entry for I_mipsisa64r2. * elfxx-mips.c (_bfd_elf_mips_mach) (_bfd_mips_elf_print_private_bfd_data): Handle E_MIPS_ARCH_64R2. (mips_set_isa_flags): Add bfd_mach_mipsisa64r2 case. (mips_mach_extensions): Add entry for bfd_mach_mipsisa64r2. [ binutils/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * readelf.c (get_machine_flags): Handle E_MIPS_ARCH_64R2. [ gas/Changelog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * configure.in (mipsisa64r2, mipsisa64r2el, mipsisa64r2*): New CPUs. * configure: Regenerate. * config/tc-mips.c (imm2_expr): New variable. (md_assemble, mips16_ip): Initialize imm2_expr. (ISA_HAS_64BIT_REGS, ISA_HAS_DROR, ISA_HAS_ROR): Add ISA_MIPS64R2. (macro_build): Handle +A, +B, +C, +E, +F, +G, and +H format operands. (macro): Handle M_DEXT and M_DINS. (validate_mips_insn): Handle +E, +F, +G, +H, and +I format operands. (mips_ip): Likewise. (OPTION_MIPS64R2): New define. (md_longopts): New entry for -mips64r2 (OPTION_MIPS64R2). OPTION_ASE_BASE): Increase to compensate for OPTION_MIPS64R2. (md_parse_option): Handle OPTION_MIPS64R2. (s_mipsset): Handle setting "mips64r2" ISA. (mips_cpu_info_table): Add mips64r2. (md_show_usage): Document -mips64r2 option. * doc/as.texinfo: Docuemnt -mips64r2 option. * doc/c-mips.texi: Likewise. [ gas/testsuite/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * gas/mips/cp0-names-mips64r2.d: New file. * gas/mips/cp0sel-names-mips64r2.d: New file. * gas/mips/elf_arch_mips64r2.d: New file. * gas/mips/hwr-names-mips64r2.d: New file. * gas/mips/mips32r2-ill-fp64.l: New file. * gas/mips/mips32r2-ill-fp64.s: New file. * gas/mips/mips64r2-ill.l: New file. * gas/mips/mips64r2-ill.s: New file. * gas/mips/mips64r2.d: New file. * gas/mips/mips64r2.s: New file. * gas/mips/mips.exp: Define "mips64r2" arch, and run new tests. [ include/elf/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips.h (E_MIPS_ARCH_64R2): New define. [ include/opcode/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips.h: Document +E, +F, +G, +H, and +I operand types. Update documentation of I, +B and +C operand types. (INSN_ISA64R2, ISA_MIPS64R2, CPU_MIPS64R2): New defines. (M_DEXT, M_DINS): New enum values. [ ld/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * ldmain.c (get_emulation): Ignore "-mips64r2". [ ld/testsuite/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * ld-mips-elf/mips-elf-flags.exp: Add tests for combinations with MIPS64r2. [ opcodes/ChangeLog ] 2003-09-30 Chris Demetriou <cgd@broadcom.com> * mips-dis.c (mips_arch_choices): Add entry for "mips64r2" (print_insn_args): Add handing for +E, +F, +G, and +H. * mips-opc.c (I65): New define for MIPS64r2. (mips_builtin_opcodes): Add "dext", "dextm", "dextu", "dins", "dinsm", "dinsu", "drotl", "drotr", "drotr32", "drotrv", "dsbh", and "dshd" for MIPS64r2. Adjust "dror", "dror32", and "drorv" to be supported on MIPS64r2.
2003-09-30 16:17:15 +00:00
mips@var{n}}. @var{n} should be a number from 0 to 5, or 32, 32r2, 64
or 64r2.
The values other than 0 make the assembler accept instructions
2000-12-12 19:36:32 +00:00
for the corresponding @sc{isa} level, from that point on in the
assembly. @code{.set mips@var{n}} affects not only which instructions
are permitted, but also how certain macros are expanded. @code{.set
mips0} restores the @sc{isa} level to its original level: either the
level you selected with command line options, or the default for your
[ gas/ChangeLog ] * config/tc-mips.c (ISA_SUPPORTS_SMARTMIPS): Rename. (ISA_SUPPORTS_DSP_ASE, ISA_SUPPORTS_MT_ASE, ISA_HAS_64BIT_FPRS, ISA_HAS_MXHC1): New macros. (HAVE_32BIT_FPRS): Use ISA_HAS_64BIT_FPRS instead of ISA_HAS_64BIT_REGS. Formatting fixes. Improved comments. (mips_cpu_info): Change to use combined ASE/IS_ISA flag. (MIPS_CPU_IS_ISA, MIPS_CPU_ASE_SMARTMIPS, MIPS_CPU_ASE_DSP, MIPS_CPU_ASE_MT, MIPS_CPU_ASE_MIPS3D, MIPS_CPU_ASE_MDMX): New defines. (mips_after_parse_args): Change default handling of float register size to account for 32bit code with 64bit FP. Better sanity checking of ISA/ASE/ABI option combinations. (s_mipsset): Support switching of GPR and FPR sizes via .set {g,f}p={32,64,default}. Better sanity checking for .set ASE options. (mips_elf_final_processing): We should record the use of 64bit FP registers in 32bit code but we don't, because ELF header flags are a scarce ressource. (mips_cpu_info_table): Add ASE flags for CPUs with mandatory ASE extensions. Add 4ksc, 4kec, 4kem, 4kep, 4ksd, m4kp, 24kec, 24kef, 24kex, 34kc, 34kf, 34kx, 25kf CPU definitions. (mips_cpu_info_from_isa): Use MIPS_CPU_IS_ISA. * doc/c-mips.texi: Document .set {g,f}p={32,64,default}. Document missing -march options. Document .set arch=CPU. Move .set smartmips to ASE page. Use @code for .set FOO examples. [ gas/testsuite/Changelog ] * gas/mips/mips-gp32-fp64-pic.d, mips/mips-gp32-fp64.d, gas/mips/mips-gp64-fp32-pic.d, gas/mips/mips-gp64-fp32.l, gas/mips/mips-gp64-fp64.d: Adjust test cases to the changes assembler output. * gas/mips/mips-gp32-fp64.l, gas/mips/mips-gp64-fp32-pic.l: New files, catch assembler warnings.
2006-05-23 15:37:20 +00:00
configuration. You can use this feature to permit specific @sc{mips3}
2000-12-12 19:36:32 +00:00
instructions while assembling in 32 bit mode. Use this directive with
2001-06-28 Eric Christopher <echristo@redhat.com> H.J. Lu <hjl@gnu.org>         * config/tc-mips.c (mips_arch): New. Use mips_arch instead         of mips_cpu for the ISA selection.         (md_longopts): Add OPTION_MARCH and OPTION_MTUNE.         (md_parse_option): Handle OPTION_MARCH and OPTION_MTUNE. (mips_tune): New. Use mips_tune for scheduling and optimization issues. (append_insn): Use mips_tune and mips_arch. (macro_build): Ditto. (mips_ip): Ditto. (md_begin): Handle mips_arch, mips_tune and mips_cpu. For backwards compatability mips_cpu generates arch and tune. (md_show_usage): Document new behavior. * doc/c-mips.texi (MIPS Opts): Document -march and -mtune. Deprecate -mcpu. * NEWS: Update. 2001-06-28 Eric Christopher <echristo@redhat.com> * gas/mips/usd.d: Change for march/mtune. * gas/mips/ulh-xgot.d: Ditto. * gas/mips/uld.d: Ditto. * gas/mips/trunc.d: Ditto. * gas/mips/rol.d: Ditto. * gas/mips/nodelay.d: Ditto. * gas/mips/mul.d: Ditto. * gas/mips/mul-ilocks.d: Ditto. * gas/mips/trap20.d: Ditto. * gas/mips/mips4.d: Ditto. * gas/mips/mips16.d: Ditto. * gas/mips/lif-xgot.d: Ditto. * gas/mips/lif-svr4pic.d: Ditto. * gas/mips/ld-xgot.d: Ditto. * gas/mips/ld-svr4pic.d: Ditto. * gas/mips/ld-ilocks-addr32.d: Ditto. * gas/mips/lb-xgot.d: Ditto. * gas/mips/jal-xgot.d: Ditto. * gas/mips/jal-svr4pic.d: Ditto. * gas/mips/delay.d: Ditto. * gas/mips/lb-xgot-ilocks.d: Ditto. * gas/mips/div.d: Ditto. * gas/mips/break20.d: Ditto. * gas/mips/delay.d: Ditto. * gas/mips/elf_e_flags3.d: Ditto. * gas/mips/elf_e_flags4.d: Ditto. * gas/mips/lineno.d: Ditto. * gas/mips/mips16.d: Ditto. * gas/mips/mips4.d: Ditto. * gas/mips/mips4010.d: Ditto. * gas/mips/mips4650.d: Ditto.
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care!
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[ gas/ChangeLog ] * config/tc-mips.c (ISA_SUPPORTS_SMARTMIPS): Rename. (ISA_SUPPORTS_DSP_ASE, ISA_SUPPORTS_MT_ASE, ISA_HAS_64BIT_FPRS, ISA_HAS_MXHC1): New macros. (HAVE_32BIT_FPRS): Use ISA_HAS_64BIT_FPRS instead of ISA_HAS_64BIT_REGS. Formatting fixes. Improved comments. (mips_cpu_info): Change to use combined ASE/IS_ISA flag. (MIPS_CPU_IS_ISA, MIPS_CPU_ASE_SMARTMIPS, MIPS_CPU_ASE_DSP, MIPS_CPU_ASE_MT, MIPS_CPU_ASE_MIPS3D, MIPS_CPU_ASE_MDMX): New defines. (mips_after_parse_args): Change default handling of float register size to account for 32bit code with 64bit FP. Better sanity checking of ISA/ASE/ABI option combinations. (s_mipsset): Support switching of GPR and FPR sizes via .set {g,f}p={32,64,default}. Better sanity checking for .set ASE options. (mips_elf_final_processing): We should record the use of 64bit FP registers in 32bit code but we don't, because ELF header flags are a scarce ressource. (mips_cpu_info_table): Add ASE flags for CPUs with mandatory ASE extensions. Add 4ksc, 4kec, 4kem, 4kep, 4ksd, m4kp, 24kec, 24kef, 24kex, 34kc, 34kf, 34kx, 25kf CPU definitions. (mips_cpu_info_from_isa): Use MIPS_CPU_IS_ISA. * doc/c-mips.texi: Document .set {g,f}p={32,64,default}. Document missing -march options. Document .set arch=CPU. Move .set smartmips to ASE page. Use @code for .set FOO examples. [ gas/testsuite/Changelog ] * gas/mips/mips-gp32-fp64-pic.d, mips/mips-gp32-fp64.d, gas/mips/mips-gp64-fp32-pic.d, gas/mips/mips-gp64-fp32.l, gas/mips/mips-gp64-fp64.d: Adjust test cases to the changes assembler output. * gas/mips/mips-gp32-fp64.l, gas/mips/mips-gp64-fp32-pic.l: New files, catch assembler warnings.
2006-05-23 15:37:20 +00:00
@cindex MIPS CPU override
@kindex @code{.set arch=@var{cpu}}
The @code{.set arch=@var{cpu}} directive provides even finer control.
It changes the effective CPU target and allows the assembler to use
instructions specific to a particular CPU. All CPUs supported by the
@samp{-march} command line option are also selectable by this directive.
The original value is restored by @code{.set arch=default}.
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[ gas/ChangeLog ] * config/tc-mips.c (ISA_SUPPORTS_SMARTMIPS): Rename. (ISA_SUPPORTS_DSP_ASE, ISA_SUPPORTS_MT_ASE, ISA_HAS_64BIT_FPRS, ISA_HAS_MXHC1): New macros. (HAVE_32BIT_FPRS): Use ISA_HAS_64BIT_FPRS instead of ISA_HAS_64BIT_REGS. Formatting fixes. Improved comments. (mips_cpu_info): Change to use combined ASE/IS_ISA flag. (MIPS_CPU_IS_ISA, MIPS_CPU_ASE_SMARTMIPS, MIPS_CPU_ASE_DSP, MIPS_CPU_ASE_MT, MIPS_CPU_ASE_MIPS3D, MIPS_CPU_ASE_MDMX): New defines. (mips_after_parse_args): Change default handling of float register size to account for 32bit code with 64bit FP. Better sanity checking of ISA/ASE/ABI option combinations. (s_mipsset): Support switching of GPR and FPR sizes via .set {g,f}p={32,64,default}. Better sanity checking for .set ASE options. (mips_elf_final_processing): We should record the use of 64bit FP registers in 32bit code but we don't, because ELF header flags are a scarce ressource. (mips_cpu_info_table): Add ASE flags for CPUs with mandatory ASE extensions. Add 4ksc, 4kec, 4kem, 4kep, 4ksd, m4kp, 24kec, 24kef, 24kex, 34kc, 34kf, 34kx, 25kf CPU definitions. (mips_cpu_info_from_isa): Use MIPS_CPU_IS_ISA. * doc/c-mips.texi: Document .set {g,f}p={32,64,default}. Document missing -march options. Document .set arch=CPU. Move .set smartmips to ASE page. Use @code for .set FOO examples. [ gas/testsuite/Changelog ] * gas/mips/mips-gp32-fp64-pic.d, mips/mips-gp32-fp64.d, gas/mips/mips-gp64-fp32-pic.d, gas/mips/mips-gp64-fp32.l, gas/mips/mips-gp64-fp64.d: Adjust test cases to the changes assembler output. * gas/mips/mips-gp32-fp64.l, gas/mips/mips-gp64-fp32-pic.l: New files, catch assembler warnings.
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The directive @code{.set mips16} puts the assembler into MIPS 16 mode,
in which it will assemble instructions for the MIPS 16 processor. Use
@code{.set nomips16} to return to normal 32 bit mode.
2001-06-28 Eric Christopher <echristo@redhat.com> H.J. Lu <hjl@gnu.org>         * config/tc-mips.c (mips_arch): New. Use mips_arch instead         of mips_cpu for the ISA selection.         (md_longopts): Add OPTION_MARCH and OPTION_MTUNE.         (md_parse_option): Handle OPTION_MARCH and OPTION_MTUNE. (mips_tune): New. Use mips_tune for scheduling and optimization issues. (append_insn): Use mips_tune and mips_arch. (macro_build): Ditto. (mips_ip): Ditto. (md_begin): Handle mips_arch, mips_tune and mips_cpu. For backwards compatability mips_cpu generates arch and tune. (md_show_usage): Document new behavior. * doc/c-mips.texi (MIPS Opts): Document -march and -mtune. Deprecate -mcpu. * NEWS: Update. 2001-06-28 Eric Christopher <echristo@redhat.com> * gas/mips/usd.d: Change for march/mtune. * gas/mips/ulh-xgot.d: Ditto. * gas/mips/uld.d: Ditto. * gas/mips/trunc.d: Ditto. * gas/mips/rol.d: Ditto. * gas/mips/nodelay.d: Ditto. * gas/mips/mul.d: Ditto. * gas/mips/mul-ilocks.d: Ditto. * gas/mips/trap20.d: Ditto. * gas/mips/mips4.d: Ditto. * gas/mips/mips16.d: Ditto. * gas/mips/lif-xgot.d: Ditto. * gas/mips/lif-svr4pic.d: Ditto. * gas/mips/ld-xgot.d: Ditto. * gas/mips/ld-svr4pic.d: Ditto. * gas/mips/ld-ilocks-addr32.d: Ditto. * gas/mips/lb-xgot.d: Ditto. * gas/mips/jal-xgot.d: Ditto. * gas/mips/jal-svr4pic.d: Ditto. * gas/mips/delay.d: Ditto. * gas/mips/lb-xgot-ilocks.d: Ditto. * gas/mips/div.d: Ditto. * gas/mips/break20.d: Ditto. * gas/mips/delay.d: Ditto. * gas/mips/elf_e_flags3.d: Ditto. * gas/mips/elf_e_flags4.d: Ditto. * gas/mips/lineno.d: Ditto. * gas/mips/mips16.d: Ditto. * gas/mips/mips4.d: Ditto. * gas/mips/mips4010.d: Ditto. * gas/mips/mips4650.d: Ditto.
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Traditional @sc{mips} assemblers do not support this directive.
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@node MIPS autoextend
@section Directives for extending MIPS 16 bit instructions
@kindex @code{.set autoextend}
@kindex @code{.set noautoextend}
By default, MIPS 16 instructions are automatically extended to 32 bits
[ gas/ChangeLog ] * config/tc-mips.c (ISA_SUPPORTS_SMARTMIPS): Rename. (ISA_SUPPORTS_DSP_ASE, ISA_SUPPORTS_MT_ASE, ISA_HAS_64BIT_FPRS, ISA_HAS_MXHC1): New macros. (HAVE_32BIT_FPRS): Use ISA_HAS_64BIT_FPRS instead of ISA_HAS_64BIT_REGS. Formatting fixes. Improved comments. (mips_cpu_info): Change to use combined ASE/IS_ISA flag. (MIPS_CPU_IS_ISA, MIPS_CPU_ASE_SMARTMIPS, MIPS_CPU_ASE_DSP, MIPS_CPU_ASE_MT, MIPS_CPU_ASE_MIPS3D, MIPS_CPU_ASE_MDMX): New defines. (mips_after_parse_args): Change default handling of float register size to account for 32bit code with 64bit FP. Better sanity checking of ISA/ASE/ABI option combinations. (s_mipsset): Support switching of GPR and FPR sizes via .set {g,f}p={32,64,default}. Better sanity checking for .set ASE options. (mips_elf_final_processing): We should record the use of 64bit FP registers in 32bit code but we don't, because ELF header flags are a scarce ressource. (mips_cpu_info_table): Add ASE flags for CPUs with mandatory ASE extensions. Add 4ksc, 4kec, 4kem, 4kep, 4ksd, m4kp, 24kec, 24kef, 24kex, 34kc, 34kf, 34kx, 25kf CPU definitions. (mips_cpu_info_from_isa): Use MIPS_CPU_IS_ISA. * doc/c-mips.texi: Document .set {g,f}p={32,64,default}. Document missing -march options. Document .set arch=CPU. Move .set smartmips to ASE page. Use @code for .set FOO examples. [ gas/testsuite/Changelog ] * gas/mips/mips-gp32-fp64-pic.d, mips/mips-gp32-fp64.d, gas/mips/mips-gp64-fp32-pic.d, gas/mips/mips-gp64-fp32.l, gas/mips/mips-gp64-fp64.d: Adjust test cases to the changes assembler output. * gas/mips/mips-gp32-fp64.l, gas/mips/mips-gp64-fp32-pic.l: New files, catch assembler warnings.
2006-05-23 15:37:20 +00:00
when necessary. The directive @code{.set noautoextend} will turn this
off. When @code{.set noautoextend} is in effect, any 32 bit instruction
must be explicitly extended with the @code{.e} modifier (e.g.,
@code{li.e $4,1000}). The directive @code{.set autoextend} may be used
1999-05-03 07:29:11 +00:00
to once again automatically extend instructions when necessary.
This directive is only meaningful when in MIPS 16 mode. Traditional
@sc{mips} assemblers do not support this directive.
@node MIPS insn
@section Directive to mark data as an instruction
@kindex @code{.insn}
The @code{.insn} directive tells @code{@value{AS}} that the following
data is actually instructions. This makes a difference in MIPS 16 mode:
when loading the address of a label which precedes instructions,
@code{@value{AS}} automatically adds 1 to the value, so that jumping to
the loaded address will do the right thing.
@node MIPS option stack
@section Directives to save and restore options
@cindex MIPS option stack
@kindex @code{.set push}
@kindex @code{.set pop}
The directives @code{.set push} and @code{.set pop} may be used to save
and restore the current settings for all the options which are
controlled by @code{.set}. The @code{.set push} directive saves the
current settings on a stack. The @code{.set pop} directive pops the
stack and restores the settings.
These directives can be useful inside an macro which must change an
option such as the ISA level or instruction reordering but does not want
to change the state of the code which invoked the macro.
Traditional @sc{mips} assemblers do not support these directives.
[ gas/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * config/tc-mips.c (mips_set_options): New "ase_mips3d" member. (mips_opts): Initialize "ase_mips3d" member. (file_ase_mips3d): New variable. (CPU_HAS_MIPS3D): New macro. (md_begin): Initialize mips_opts.ase_mips3d and file_ase_mips3d based on command line options and configuration defaults. (macro_build, mips_ip): Accept MIPS-3D instructions if mips_opts.ase_mips3d is set. (OPTION_MIPS3D, OPTION_NO_MIPS3D, md_longopts, md_parse_option): Add support for "-mips3d" and "-no-mips3d" options. (OPTION_ELF_BASE): Move to accomodate new options. (s_mipsset): Support ".set mips3d" and ".set nomips3d". (mips_elf_final_processing): Add a comment indicating that a MIPS-3D ASE ELF header flag should be set, when one exists. * doc/as.texinfo: Document -mips3d and -no-mips3d options. * doc/c-mips.texi: Likewise, and document ".set mips3d" and ".set nomips3d" directives. [ gas/testsuite/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * gas/mips/mips64-mips3d.s: New file. * gas/mips/mips64-mips3d.d: Likewise. * gas/mips/mips.exp: Run new "mips64-mips3d" test. [ include/opcode/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * mips.h (INSN_MIPS3D): New definition used to mark MIPS-3D instructions. (OPCODE_IS_MEMBER): Adjust comments to indicate that ASE bit masks may be passed along with the ISA bitmask. [ opcodes/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * mips-dis.c (mips_isa_type): Add MIPS3D instructions to the ISA bit masks for bfd_mach_mips_sb1 and bfd_mach_mipsisa64. Add comments for bfd_mach_mipsisa32 and bfd_mach_mipsisa64 that indicate that they should dissassemble all applicable MIPS-specified ASEs. * mips-opc.c: Add support for MIPS-3D instructions. (M3D): New definition. * mips-opc.c: Update copyright years.
2002-03-16 03:09:19 +00:00
@node MIPS ASE instruction generation overrides
@section Directives to control generation of MIPS ASE instructions
@cindex MIPS MIPS-3D instruction generation override
@kindex @code{.set mips3d}
@kindex @code{.set nomips3d}
The directive @code{.set mips3d} makes the assembler accept instructions
from the MIPS-3D Application Specific Extension from that point on
in the assembly. The @code{.set nomips3d} directive prevents MIPS-3D
instructions from being accepted.
[ gas/ChangeLog ] * config/tc-mips.c (ISA_SUPPORTS_SMARTMIPS): Rename. (ISA_SUPPORTS_DSP_ASE, ISA_SUPPORTS_MT_ASE, ISA_HAS_64BIT_FPRS, ISA_HAS_MXHC1): New macros. (HAVE_32BIT_FPRS): Use ISA_HAS_64BIT_FPRS instead of ISA_HAS_64BIT_REGS. Formatting fixes. Improved comments. (mips_cpu_info): Change to use combined ASE/IS_ISA flag. (MIPS_CPU_IS_ISA, MIPS_CPU_ASE_SMARTMIPS, MIPS_CPU_ASE_DSP, MIPS_CPU_ASE_MT, MIPS_CPU_ASE_MIPS3D, MIPS_CPU_ASE_MDMX): New defines. (mips_after_parse_args): Change default handling of float register size to account for 32bit code with 64bit FP. Better sanity checking of ISA/ASE/ABI option combinations. (s_mipsset): Support switching of GPR and FPR sizes via .set {g,f}p={32,64,default}. Better sanity checking for .set ASE options. (mips_elf_final_processing): We should record the use of 64bit FP registers in 32bit code but we don't, because ELF header flags are a scarce ressource. (mips_cpu_info_table): Add ASE flags for CPUs with mandatory ASE extensions. Add 4ksc, 4kec, 4kem, 4kep, 4ksd, m4kp, 24kec, 24kef, 24kex, 34kc, 34kf, 34kx, 25kf CPU definitions. (mips_cpu_info_from_isa): Use MIPS_CPU_IS_ISA. * doc/c-mips.texi: Document .set {g,f}p={32,64,default}. Document missing -march options. Document .set arch=CPU. Move .set smartmips to ASE page. Use @code for .set FOO examples. [ gas/testsuite/Changelog ] * gas/mips/mips-gp32-fp64-pic.d, mips/mips-gp32-fp64.d, gas/mips/mips-gp64-fp32-pic.d, gas/mips/mips-gp64-fp32.l, gas/mips/mips-gp64-fp64.d: Adjust test cases to the changes assembler output. * gas/mips/mips-gp32-fp64.l, gas/mips/mips-gp64-fp32-pic.l: New files, catch assembler warnings.
2006-05-23 15:37:20 +00:00
@cindex SmartMIPS instruction generation override
@kindex @code{.set smartmips}
@kindex @code{.set nosmartmips}
The directive @code{.set smartmips} makes the assembler accept
instructions from the SmartMIPS Application Specific Extension to the
MIPS32 @sc{isa} from that point on in the assembly. The
@code{.set nosmartmips} directive prevents SmartMIPS instructions from
being accepted.
[ gas/ChangeLog ] 2002-05-30 Chris G. Demetriou <cgd@broadcom.com> Ed Satterthwaite <ehs@broadcom.com> * config/tc-mips.c (mips_set_options): New "ase_mdmx" member. (mips_opts): Initialize "ase_mdmx" member. (file_ase_mdmx): New variable. (CPU_HAS_MDMX): New macro. (md_begin): Initialize mips_opts.ase_mdmx and file_ase_mdmx based on command line options and configuration defaults. (macro_build): Note in comment that use of MDMX in macros is not currently allowed. (validate_mips_insn): Add support for the "O", "Q", "X", "Y", and "Z" MDMX operand types. (mips_ip): Accept MDMX instructions if mips_opts.ase_mdmx is set, and add support for the "O", "Q", "X", "Y", and "Z" MDMX operand types. (OPTION_MDMX, OPTION_NO_MDMX, md_longopts, md_parse_option): Add support for "-mdmx" and "-no-mdmx" options. (OPTION_ELF_BASE): Move to accomodate new options. (s_mipsset): Support ".set mdmx" and ".set nomdmx". (mips_elf_final_processing): Set MDMX ASE ELF header flag if file_ase_mdmx was set. * doc/as.texinfo: Document -mdmx and -no-mdmx options. * doc/c-mips.texi: Likewise, and document ".set mdmx" and ".set nomdmx" directives. [ gas/testsuite/ChangeLog ] 2002-05-30 Chris G. Demetriou <cgd@broadcom.com> * gas/mips/mips64-mdmx.s: New file. * gas/mips/mips64-mdmx.d: Likewise. * gas/mips/mips.exp: Run new "mips64-mdmx" test. [ include/opcode/ChangeLog ] 2002-05-30 Chris G. Demetriou <cgd@broadcom.com> * mips.h (OP_SH_ALN, OP_MASK_ALN, OP_SH_VSEL, OP_MASK_VSEL) (MDMX_FMTSEL_IMM_QH, MDMX_FMTSEL_IMM_OB, MDMX_FMTSEL_VEC_QH) (MDMX_FMTSEL_VEC_OB, INSN_READ_MDMX_ACC, INSN_WRITE_MDMX_ACC) (INSN_MDMX): New constants, for MDMX support. (opcode character list): Add "O", "Q", "X", "Y", and "Z" for MDMX. [ opcodes/ChangeLog ] 2002-05-30 Chris G. Demetriou <cgd@broadcom.com> Ed Satterthwaite <ehs@broadcom.com> * mips-dis.c (print_insn_arg): Add support for 'O', 'Q', 'X', 'Y', and 'Z' formats, for MDMX. (mips_isa_type): Add MDMX instructions to the ISA bit mask for bfd_mach_mipsisa64. * mips-opc.c: Add support for MDMX instructions. (MX): New definition. * mips-dis.c: Update copyright years to include 2002.
2002-05-31 01:17:18 +00:00
@cindex MIPS MDMX instruction generation override
@kindex @code{.set mdmx}
@kindex @code{.set nomdmx}
The directive @code{.set mdmx} makes the assembler accept instructions
from the MDMX Application Specific Extension from that point on
in the assembly. The @code{.set nomdmx} directive prevents MDMX
instructions from being accepted.
[ gas/ChangeLog ] * config/tc-mips.c (mips_set_options, mips_opts, file_ase_dspr2, ISA_SUPPORTS_DSPR2_ASE, MIPS_CPU_ASE_DSPR2): Add DSP R2 ASE support. (macro_build): Add case '2'. (macro): Expand M_BALIGN to nop, packrl.ph or balign. (validate_mips_insn): Add support for balign instruction. (mips_ip): Handle DSP R2 instructions. Support balign instruction. (OPTION_DSPR2, OPTION_NO_DSPR2, OPTION_COMPAT_ARCH_BASE, md_parse_option, mips_after_parse_args): Add -mdspr2 and -mno-dspr2 command line options. (s_mipsset): Add support for .set dspr2 and .set nodspr2 directives. (md_show_usage): Add -mdspr2 and -mno-dspr2 help output. * doc/c-mips.texi, doc/as.texinfo: Document -mdspr2, -mno-dspr2, .set dspr2, .set nodspr2. [ gas/testsuite/ChangeLog ] * gas/mips/mips32-dspr2.s, gas/mips/mips32-dspr2.d: New test for DSP R2. * gas/mips/mips.exp: Run new test. [ include/opcode/Changelog ] * mips.h (OP_SH_BP, OP_MASK_BP): Add support for balign instruction. (INSN_DSPR2): Add flag for DSP R2 instructions. (M_BALIGN): New macro. [ opcodes/ChangeLog ] * mips-dis.c (mips_arch_choices): Add DSP R2 support. (print_insn_args): Add support for balign instruction. * mips-opc.c (D33): New shortcut for DSP R2 instructions. (mips_builtin_opcodes): Add DSP R2 instructions. [ sim/mips/ChangeLog ] * Makefile.in (IGEN_INCLUDE): Add dsp2.igen. * configure.ac (mips*-sde-elf*, mipsisa32r2*-*-*, mipsisa64r2*-*-*): Add dsp2 to sim_igen_machine. * configure: Regenerate. * dsp.igen (do_ph_op): Add MUL support when op = 2. (do_ph_mulq): New function to support mulq_rs.ph and mulq_s.ph. (mulq_rs.ph): Use do_ph_mulq. (MFHI, MFLO, MTHI, MTLO): Move these instructions to mips.igen. * mips.igen: Add dsp2 model and include dsp2.igen. (MFHI, MFLO, MTHI, MTLO): Extend these instructions for for *mips32r2, *mips64r2, *dsp. (MADD, MADDU, MSUB, MSUBU, MULT, MULTU): Extend these instructions for *mips32r2, *mips64r2, *dsp2. * dsp2.igen: New file for MIPS DSP REV 2 ASE. [ sim/testsuite/sim/mips/ChangeLog ] * basic.exp: Run the dsp2 test. * utils-dsp.inc (dspckacc_astio, dspck_tsimm): New macro. * mips32-dsp2.s: New test.
2007-02-20 13:28:56 +00:00
@cindex MIPS DSP Release 1 instruction generation override
@kindex @code{.set dsp}
@kindex @code{.set nodsp}
The directive @code{.set dsp} makes the assembler accept instructions
[ gas/ChangeLog ] * config/tc-mips.c (mips_set_options, mips_opts, file_ase_dspr2, ISA_SUPPORTS_DSPR2_ASE, MIPS_CPU_ASE_DSPR2): Add DSP R2 ASE support. (macro_build): Add case '2'. (macro): Expand M_BALIGN to nop, packrl.ph or balign. (validate_mips_insn): Add support for balign instruction. (mips_ip): Handle DSP R2 instructions. Support balign instruction. (OPTION_DSPR2, OPTION_NO_DSPR2, OPTION_COMPAT_ARCH_BASE, md_parse_option, mips_after_parse_args): Add -mdspr2 and -mno-dspr2 command line options. (s_mipsset): Add support for .set dspr2 and .set nodspr2 directives. (md_show_usage): Add -mdspr2 and -mno-dspr2 help output. * doc/c-mips.texi, doc/as.texinfo: Document -mdspr2, -mno-dspr2, .set dspr2, .set nodspr2. [ gas/testsuite/ChangeLog ] * gas/mips/mips32-dspr2.s, gas/mips/mips32-dspr2.d: New test for DSP R2. * gas/mips/mips.exp: Run new test. [ include/opcode/Changelog ] * mips.h (OP_SH_BP, OP_MASK_BP): Add support for balign instruction. (INSN_DSPR2): Add flag for DSP R2 instructions. (M_BALIGN): New macro. [ opcodes/ChangeLog ] * mips-dis.c (mips_arch_choices): Add DSP R2 support. (print_insn_args): Add support for balign instruction. * mips-opc.c (D33): New shortcut for DSP R2 instructions. (mips_builtin_opcodes): Add DSP R2 instructions. [ sim/mips/ChangeLog ] * Makefile.in (IGEN_INCLUDE): Add dsp2.igen. * configure.ac (mips*-sde-elf*, mipsisa32r2*-*-*, mipsisa64r2*-*-*): Add dsp2 to sim_igen_machine. * configure: Regenerate. * dsp.igen (do_ph_op): Add MUL support when op = 2. (do_ph_mulq): New function to support mulq_rs.ph and mulq_s.ph. (mulq_rs.ph): Use do_ph_mulq. (MFHI, MFLO, MTHI, MTLO): Move these instructions to mips.igen. * mips.igen: Add dsp2 model and include dsp2.igen. (MFHI, MFLO, MTHI, MTLO): Extend these instructions for for *mips32r2, *mips64r2, *dsp. (MADD, MADDU, MSUB, MSUBU, MULT, MULTU): Extend these instructions for *mips32r2, *mips64r2, *dsp2. * dsp2.igen: New file for MIPS DSP REV 2 ASE. [ sim/testsuite/sim/mips/ChangeLog ] * basic.exp: Run the dsp2 test. * utils-dsp.inc (dspckacc_astio, dspck_tsimm): New macro. * mips32-dsp2.s: New test.
2007-02-20 13:28:56 +00:00
from the DSP Release 1 Application Specific Extension from that point
on in the assembly. The @code{.set nodsp} directive prevents DSP
Release 1 instructions from being accepted.
@cindex MIPS DSP Release 2 instruction generation override
@kindex @code{.set dspr2}
@kindex @code{.set nodspr2}
The directive @code{.set dspr2} makes the assembler accept instructions
from the DSP Release 2 Application Specific Extension from that point
on in the assembly. This dirctive implies @code{.set dsp}. The
@code{.set nodspr2} directive prevents DSP Release 2 instructions from
being accepted.
@cindex MIPS MT instruction generation override
@kindex @code{.set mt}
@kindex @code{.set nomt}
The directive @code{.set mt} makes the assembler accept instructions
from the MT Application Specific Extension from that point on
in the assembly. The @code{.set nomt} directive prevents MT
instructions from being accepted.
[ gas/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * config/tc-mips.c (mips_set_options): New "ase_mips3d" member. (mips_opts): Initialize "ase_mips3d" member. (file_ase_mips3d): New variable. (CPU_HAS_MIPS3D): New macro. (md_begin): Initialize mips_opts.ase_mips3d and file_ase_mips3d based on command line options and configuration defaults. (macro_build, mips_ip): Accept MIPS-3D instructions if mips_opts.ase_mips3d is set. (OPTION_MIPS3D, OPTION_NO_MIPS3D, md_longopts, md_parse_option): Add support for "-mips3d" and "-no-mips3d" options. (OPTION_ELF_BASE): Move to accomodate new options. (s_mipsset): Support ".set mips3d" and ".set nomips3d". (mips_elf_final_processing): Add a comment indicating that a MIPS-3D ASE ELF header flag should be set, when one exists. * doc/as.texinfo: Document -mips3d and -no-mips3d options. * doc/c-mips.texi: Likewise, and document ".set mips3d" and ".set nomips3d" directives. [ gas/testsuite/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * gas/mips/mips64-mips3d.s: New file. * gas/mips/mips64-mips3d.d: Likewise. * gas/mips/mips.exp: Run new "mips64-mips3d" test. [ include/opcode/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * mips.h (INSN_MIPS3D): New definition used to mark MIPS-3D instructions. (OPCODE_IS_MEMBER): Adjust comments to indicate that ASE bit masks may be passed along with the ISA bitmask. [ opcodes/ChangeLog ] 2002-03-15 Chris G. Demetriou <cgd@broadcom.com> * mips-dis.c (mips_isa_type): Add MIPS3D instructions to the ISA bit masks for bfd_mach_mips_sb1 and bfd_mach_mipsisa64. Add comments for bfd_mach_mipsisa32 and bfd_mach_mipsisa64 that indicate that they should dissassemble all applicable MIPS-specified ASEs. * mips-opc.c: Add support for MIPS-3D instructions. (M3D): New definition. * mips-opc.c: Update copyright years.
2002-03-16 03:09:19 +00:00
Traditional @sc{mips} assemblers do not support these directives.