c7927a3c0e
* Makefile.am (ALL_MACHINES): Add cpu-rx.lo.
(ALL_MACHINES_CFILES): Add cpu-rx.c.
(BFD32_BACKENDS): Add elf32-rx.lo.
(BFD32_BACKENDS_CFILES): Add elf32-rx.c.
* archures.c (bfd_architecture): Add bfd_arch_rx and bfd_mach_rx.
Export bfd_rx_arch.
(bfd_archures_list): Add bfd_rx_arch.
* config.bfd: Add entry for rx-*-elf.
* configure.in: Add entries for bfd_elf32_rx_le_vec and
bfd_elf32_rx_be_vec.
* reloc.c: Add RX relocations.
* targets.c: Add RX target vectors.
* Makefile.in: Regenerate.
* bfd-in2.h: Regenerate.
* configure: Regenerate.
* libbfd.h: Regenerate.
* cpu-rx.c: New file.
* elf32-rx.c: New file.
binutils
* readelf.c: Add support for RX target.
* MAINTAINERS: Add DJ and NickC as maintainers for RX.
gas
* Makefile.am: Add RX target.
* configure.in: Likewise.
* configure.tgt: Likewise.
* read.c (do_repeat_with_expander): New function.
* read.h: Provide a prototype for do_repeat_with_expander.
* doc/Makefile.am: Add RX target documentation.
* doc/all.texi: Likewise.
* doc/as.texinfo: Likewise.
* Makefile.in: Regenerate.
* NEWS: Mention support for RX architecture.
* configure: Regenerate.
* doc/Makefile.in: Regenerate.
* config/rx-defs.h: New file.
* config/rx-parse.y: New file.
* config/tc-rx.h: New file.
* config/tc-rx.c: New file.
* doc/c-rx.texi: New file.
gas/testsuite
* gas/rx: New directory.
* gas/rx/*: New set of test cases.
* gas/elf/section2.e-rx: New expected output file.
* gas/all/gas.exp: Add support for RX target.
* gas/elf/elf.exp: Likewise.
* gas/lns/lns.exp: Likewise.
* gas/macros/macros.exp: Likewise.
include
* dis-asm.h: Add prototype for print_insn_rx.
include/elf
* rx.h: New file.
include/opcode
* rx.h: New file.
ld
* Makefile.am: Add rules to build RX emulation.
* configure.tgt: Likewise.
* NEWS: Mention support for RX architecture.
* Makefile.in: Regenerate.
* emulparams/elf32rx.sh: New file.
* emultempl/rxelf.em: New file.
opcodes
* Makefile.am: Add RX files.
* configure.in: Add support for RX target.
* disassemble.c: Likewise.
* Makefile.in: Regenerate.
* configure: Regenerate.
* opc2c.c: New file.
* rx-decode.c: New file.
* rx-decode.opc: New file.
* rx-dis.c: New file.
145 lines
4.2 KiB
Text
145 lines
4.2 KiB
Text
@c Copyright 2008, 2009
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@c Free Software Foundation, Inc.
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@c This is part of the GAS manual.
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@c For copying conditions, see the file as.texinfo.
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@ifset GENERIC
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@page
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@node RX-Dependent
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@chapter RX Dependent Features
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@end ifset
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@ifclear GENERIC
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@node Machine Dependencies
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@chapter RX Dependent Features
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@end ifclear
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@cindex RX support
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@menu
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* RX-Opts:: RX Assembler Command Line Options
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* RX-Modifiers:: Symbolic Operand Modifiers
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* RX-Directives:: Assembler Directives
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* RX-Float:: Floating Point
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@end menu
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@node RX-Opts
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@section RX Options
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@cindex options, RX
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@cindex RX options
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The Renesas RX port of @code{@value{AS}} has a few target specfic
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command line options:
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@table @code
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@cindex @samp{-m32bit-doubles}
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@item -m32bit-doubles
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This option controls the ABI and indicates to use a 32-bit float ABI.
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It has no effect on the assembled instructions, but it does influence
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the behaviour of the @samp{.double} pseudo-op.
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This is the default.
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@cindex @samp{-m64bit-doubles}
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@item -m64bit-doubles
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This option controls the ABI and indicates to use a 64-bit float ABI.
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It has no effect on the assembled instructions, but it does influence
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the behaviour of the @samp{.double} pseudo-op.
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@cindex @samp{-mbig-endian}
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@item -mbig-endian
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This option controls the ABI and indicates to use a big-endian data
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ABI. It has no effect on the assembled instructions, but it does
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influence the behaviour of the @samp{.short}, @samp{.hword}, @samp{.int},
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@samp{.word}, @samp{.long}, @samp{.quad} and @samp{.octa} pseudo-ops.
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@cindex @samp{-mlittle-endian}
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@item -mlittle-endian
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This option controls the ABI and indicates to use a little-endian data
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ABI. It has no effect on the assembled instructions, but it does
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influence the behaviour of the @samp{.short}, @samp{.hword}, @samp{.int},
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@samp{.word}, @samp{.long}, @samp{.quad} and @samp{.octa} pseudo-ops.
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This is the default.
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@cindex @samp{-muse-conventional-section-names}
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@item -muse-conventional-section-names
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This option controls the default names given to the code (.text),
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initialised data (.data) and uninitialised data sections (.bss).
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@cindex @samp{-muse-renesas-section-names}
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@item -muse-renesas-section-names
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This option controls the default names given to the code (.P),
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initialised data (.D_1) and uninitialised data sections (.B_1).
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This is the default.
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@cindex @samp{-msmall-data-limit}
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@item -msmall-data-limit
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This option tells the assembler that the small data limit feature of
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the RX port of GCC is being used. This results in the assembler
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generating an undefined reference to a symbol called __gp for use by
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the relocations that are needed to support the small data limit
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feature. This option is not enabled by default as it would otherwise
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pollute the symbol table.
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@end table
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@node RX-Modifiers
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@section Symbolic Operand Modifiers
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@cindex RX modifiers
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@cindex syntax, RX
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The assembler supports several modifiers when using symbol addresses
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in RX instruction operands. The general syntax is the following:
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@smallexample
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%modifier(symbol)
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@end smallexample
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@table @code
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@cindex symbol modifiers
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@item %gp
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@c FIXME: Add documentation here.
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@end table
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@node RX-Directives
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@section Assembler Directives
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@cindex assembler directives, RX
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@cindex RX assembler directives
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The RX version of @code{@value{AS}} has the following specific
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assembler directives:
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@table @code
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@item .3byte
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@cindex assembler directive .3byte, RX
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@cindex RX assembler directive .3byte
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Inserts a 3-byte value into the output file at the current location.
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@end table
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@node RX-Float
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@section Floating Point
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@cindex floating point, RX
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@cindex RX floating point
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The floating point formats generated by directives are these.
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@table @code
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@cindex @code{float} directive, RX
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@item .float
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@code{Single} precision (32-bit) floating point constants.
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@cindex @code{double} directive, RX
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@item .double
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If the @option{-m64bit-doubles} command line option has been specified
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then then @code{double} directive generates @code{double} precision
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(64-bit) floating point constants, otherwise it generates
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@code{single} precision (32-bit) floating point constants. To force
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the generation of 64-bit floating point constants used the @code{dc.d}
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directive instead.
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@end table
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