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author | DJ Delorie <dj@redhat.com> | 2011-11-02 03:09:11 +0000 |
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committer | DJ Delorie <dj@redhat.com> | 2011-11-02 03:09:11 +0000 |
commit | 99c513f6aced67d96eb2979128b612cfc5f2bc0d (patch) | |
tree | 7ad0cd3aee4459b8f973a8a1017fc9c8c9ff7b6a /gas/doc/c-rl78.texi | |
parent | ff3ec4ee4dab461c725477840d39afd3efeead24 (diff) | |
download | gdb-99c513f6aced67d96eb2979128b612cfc5f2bc0d.zip gdb-99c513f6aced67d96eb2979128b612cfc5f2bc0d.tar.gz gdb-99c513f6aced67d96eb2979128b612cfc5f2bc0d.tar.bz2 |
[.]
* configure.ac (rl78-*-*) New case.
* configure: Regenerate.
[bfd]
* Makefile.am (ALL_MACHINES): Add cpu-rl78.lo.
(ALL_MACHINES_CFILES): Add cpu-rl78.c.
(BFD32_BACKENDS): Add elf32-rl78.lo.
(BFD32_BACKENDS_CFILES): Add elf32-rl78.c.
(Makefile.in): Regenerate.
* archures.c (bfd_architecture): Define bfd_arch_rl78.
(bfd_archures_list): Add bfd_rl78_arch.
* config.bfd: Add rl78-*-elf.
* configure.in: Add bfd_elf32_rl78_vec.
* reloc.c (bfd_reloc_code_type): Add BFD_RELOC_RL78_* relocations.
* targets.c (bfd_target_vector): Add bfd_elf32_rl78_vec.
* Makefile.in: Regenerate.
* bfd-in2.h: Regenerate.
* configure: Regenerate.
* libbfd.h: Regenerate.
* cpu-rl78.c: New file.
* elf32-rl78.c: New file.
[binutils]
* readelf.c: Include elf/rl78.h
(guess_is_rela): Handle EM_RL78.
(dump_relocations): Likewise.
(get_machine_name): Likewise.
(is_32bit_abs_reloc): Likewise.
* NEWS: Mention addition of RL78 support.
* MAINTAINERS: Add myself as RL78 port maintainer.
[gas]
* Makefile.am (TARGET_CPU_CFILES): Add tc-rl78.c.
(TARGET_CPU_HFILES): Add rc-rl78.h.
(EXTRA_DIST): Add rl78-parse.c and rl78-parse.y.
(rl78-parse.c, rl78-parse.h, rl78-parse.o, rl78-defs.h): New rules.
* Makefile.in: Regenerate.
* configure.in: Add rl78 case.
* configure: Regenerate.
* configure.tgt: Add rl78 case.
* config/rl78-defs.h: New file.
* config/rl78-parse.y: New file.
* config/tc-rl78.c: New file.
* config/tc-rl78.h: New file.
* NEWS: Add Renesas RL78.
* doc/Makefile.am (c-rl78.texi): New.
* doc/Makefile.in: Likewise.
* doc/all.texi: Enable it.
* doc/as.texi: Add it.
[include]
* dis-asm.h (print_insn_rl78): Declare.
[include/elf]
* common.h (EM_RL78, EM_78K0R): New.
* rl78.h: New.
[include/opcode]
* rl78.h: New file.
[ld]
* Makefile.am (ALL_EMULATION_SOURCES): Add eelf32rl78.c.
(+eelf32rl78.c): New rule.
* Makefile.in: Regenerate.
* configure.tgt: Add rl78-*-* case.
* emulparams/elf32rl78.sh: New file.
* NEWS: Mention addition of Renesas RL78 support.
[opcodes]
* Makefile.am (TARGET_LIBOPCODES_CFILES): Add rl78-decode.c and
rl78-dis.c.
(MAINTAINERCLEANFILES): Add rl78-decode.c.
(rl78-decode.c): New rule, built from rl78-decode.opc and opc2c.
* Makefile.in: Regenerate.
* configure.in: Add bfd_rl78_arch case.
* configure: Regenerate.
* disassemble.c: Define ARCH_rl78.
(disassembler): Add ARCH_rl78 case.
* rl78-decode.c: New file.
* rl78-decode.opc: New file.
* rl78-dis.c: New file.
Diffstat (limited to 'gas/doc/c-rl78.texi')
-rw-r--r-- | gas/doc/c-rl78.texi | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/gas/doc/c-rl78.texi b/gas/doc/c-rl78.texi new file mode 100644 index 0000000..356439a --- /dev/null +++ b/gas/doc/c-rl78.texi @@ -0,0 +1,121 @@ +@c Copyright 2011 +@c Free Software Foundation, Inc. +@c This is part of the GAS manual. +@c For copying conditions, see the file as.texinfo. +@ifset GENERIC +@page +@node RL78-Dependent +@chapter RL78 Dependent Features +@end ifset +@ifclear GENERIC +@node Machine Dependencies +@chapter RL78 Dependent Features +@end ifclear + +@cindex RL78 support +@menu +* RL78-Opts:: RL78 Assembler Command Line Options +* RL78-Modifiers:: Symbolic Operand Modifiers +* RL78-Directives:: Assembler Directives +* RL78-Float:: Floating Point +* RL78-Syntax:: Syntax +@end menu + +@node RL78-Opts +@section RL78 Options +@cindex options, RL78 +@cindex RL78 options + +The Renesas RL78 port of @code{@value{AS}} has no target-specific +options. + +@node RL78-Modifiers +@section Symbolic Operand Modifiers + +@cindex RL78 modifiers +@cindex syntax, RL78 + +The RL78 has three modifiers that adjust the relocations used by the +linker: + +@table @code + +@item %lo16() + +When loading a 20-bit (or wider) address into registers, this modifier +selects the 16 least significant bits. + +@smallexample + movw ax,#%lo16(_sym) +@end smallexample + +@item %hi16() + +When loading a 20-bit (or wider) address into registers, this modifier +selects the 16 most significant bits. + +@smallexample + movw ax,#%hi16(_sym) +@end smallexample + +@item %hi8() + +When loading a 20-bit (or wider) address into registers, this modifier +selects the 8 bits that would go into CS or ES (i.e. bits 23..16). + +@smallexample + mov es, #%hi8(_sym) +@end smallexample + +@end table + +@node RL78-Directives +@section Assembler Directives + +@cindex assembler directives, RL78 +@cindex RL78 assembler directives + +In addition to the common directives, the RL78 adds these: + +@table @code + +@item .double +Output a constant in ``double'' format, which is a 32-bit floating +point value on RL78. + +@item .bss +Select the BSS section. + +@item .3byte +Output a constant value in a three byte format. + +@item .int +@itemx .word +Output a constant value in a four byte format. + +@end table + +@node RL78-Syntax +@section Syntax for the RL78 +@menu +* RL78-Chars:: Special Characters +@end menu + +@node RL78-Chars +@subsection Special Characters + +@cindex line comment character, RL78 +@cindex RL78 line comment character +The presence of a @samp{;} appearing anywhere on a line indicates the +start of a comment that extends to the end of that line. + +If a @samp{#} appears as the first character of a line then the whole +line is treated as a comment, but in this case the line can also be a +logical line number directive (@pxref{Comments}) or a preprocessor +control command (@pxref{Preprocessing}). + +@cindex line separator, RL78 +@cindex statement separator, RL78 +@cindex RL78 line separator +The @samp{|} character can be used to separate statements on the same +line. |