binutils-gdb/gas/doc/c-m32c.texi

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ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> * configure.in: Add cases for Renesas m32c. * configure: Regenerated. bfd/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for m32c-*-elf (Renesas m32c and m16c). * Makefile.am (ALL_MACHINES): Add cpu-m32c.lo. (ALL_MACHINES_CFILES): Add cpu-m32c.c. (BFD32_BACKENDS): Add elf32-m32c.lo. (BFD32_BACKENDS_CFILES): Add elf32-m32c.c. (cpu-m32c.lo, elf32-m32c.lo): New rules, generated by 'make dep-am'. * Makefile.in: Regenerated. * archures.c (bfd_arch_m32c, bfd_mach_m16c, bfd_mach_m32c): New arch and mach codes. (bfd_m32c_arch): New arch info object. (bfd_archures_list): List bfd_m32c_arch. * bfd-in2.h: Regenerated. * config.bfd: Add case for the m32c. * configure.in: Add case for the m32c. * configure: Regenerated. * cpu-m32c.c, elf32-m32c.c: New files. * libbfd.h: Regenerated. * targets.c (bfd_elf32_m32c_vec): Declare. (_bfd_target_vector): List bfd_elf32_m32c_vec. binutils/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> * readelf.c: #include "elf/m32c.h" (guess_is_rela, dump_relocations, get_machine_name): Add cases for EM_M32C. * Makefile.am (readelf.o): Update dependencies. * Makefile.in: Regenerated. cpu/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> * m32c.cpu, m32c.opc: Machine description for the Renesas M32C. gas/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for the Renesas M32C. * Makefile.am (CPU_TYPES): List m32c. (TARGET_CPU_CFILES): List config/tc-m32c.c. (TARGET_CPU_HFILES): List config/tc-m32c.h. * configure.in: Add case for m32c. * configure.tgt: Add cases for m32c and m32c-*-elf. * configure: Regenerated. * config/tc-m32c.c, config/tc-m32c.h: New files. * doc/Makefile.am (CPU_DOCS): Add c-m32c.texi. * doc/Makefile.in: Regenerated. * doc/all.texi: Set M32C. * doc/as.texinfo: Add text for the M32C-specific options and line comment characters, and refer to c-m32c.texi. * doc/c-m32c.texi: New file. include/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> * dis-asm.h (print_insn_m32c): New declaration. include/elf/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for Renesas M32C and M16C. * common.h (EM_M32C): New machine number. * m32c.h: New file. ld/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for the Renesas M32C and M16C. * Makefile.am (ALL_EMULATIONS): Add eelf32m32c.o. (eelf32m32c.c): New target. * Makefile.in: Regenerated. * configure.tgt: Add case for m32c-*-elf. * emulparams/elf32m32c.sh: New file. opcodes/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for the Renesas M32C and M16C. * m32c-asm.c, m32c-desc.c, m32c-dis.c, m32c-ibld.c, m32c-opc.c: New. * m32c-desc.h, m32c-opc.h: New. * Makefile.am (HFILES): List m32c-desc.h and m32c-opc.h. (CFILES): List m32c-asm.c, m32c-desc.c, m32c-dis.c, m32c-ibld.c, m32c-opc.c. (ALL_MACHINES): List m32c-asm.lo, m32c-desc.lo, m32c-dis.lo, m32c-ibld.lo, m32c-opc.lo. (CLEANFILES): List stamp-m32c. (M32C_DEPS): List stamp-m32c, if CGEN_MAINT. (CGEN_CPUS): Add m32c. (m32c-asm.c, m32c-desc.c, m32c-dis.c, m32c-ibld.c, m32c-opc.c) (m32c-desc.h, m32c-opc.h): Depend on M32C_DEPS. (m32c_opc_h): New variable. (stamp-m32c, m32c-asm.lo, m32c-desc.lo, m32c-dis.lo, m32c-ibld.lo) (m32c-opc.lo): New rules. * Makefile.in: Regenerated. * configure.in: Add case for bfd_m32c_arch. * configure: Regenerated. * disassemble.c (ARCH_m32c): New. [ARCH_m32c]: #include "m32c-desc.h". (disassembler) [ARCH_m32c]: Add case for bfd_arch_m32c. (disassemble_init_for_target) [ARCH_m32c]: Same. * cgen-ops.h, cgen-types.h: New files. * Makefile.am (HFILES): List them. * Makefile.in: Regenerated.
2005-07-15 00:52:28 +02:00
@c Copyright 2005
@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 M32C-Dependent
@chapter M32C Dependent Features
@end ifset
@ifclear GENERIC
@node Machine Dependencies
@chapter M32C Dependent Features
@end ifclear
@cindex M32C support
@code{@value{AS}} can assemble code for several different members of
the Renesas M32C family. Normally the default is to assemble code for
the M16C microprocessor. The @code{-m32c} option may be used to
change the default to the M32C microprocessor.
@menu
* M32C-Opts:: M32C Options
* M32C-Modifiers:: Symbolic Operand Modifiers
ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> * configure.in: Add cases for Renesas m32c. * configure: Regenerated. bfd/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for m32c-*-elf (Renesas m32c and m16c). * Makefile.am (ALL_MACHINES): Add cpu-m32c.lo. (ALL_MACHINES_CFILES): Add cpu-m32c.c. (BFD32_BACKENDS): Add elf32-m32c.lo. (BFD32_BACKENDS_CFILES): Add elf32-m32c.c. (cpu-m32c.lo, elf32-m32c.lo): New rules, generated by 'make dep-am'. * Makefile.in: Regenerated. * archures.c (bfd_arch_m32c, bfd_mach_m16c, bfd_mach_m32c): New arch and mach codes. (bfd_m32c_arch): New arch info object. (bfd_archures_list): List bfd_m32c_arch. * bfd-in2.h: Regenerated. * config.bfd: Add case for the m32c. * configure.in: Add case for the m32c. * configure: Regenerated. * cpu-m32c.c, elf32-m32c.c: New files. * libbfd.h: Regenerated. * targets.c (bfd_elf32_m32c_vec): Declare. (_bfd_target_vector): List bfd_elf32_m32c_vec. binutils/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> * readelf.c: #include "elf/m32c.h" (guess_is_rela, dump_relocations, get_machine_name): Add cases for EM_M32C. * Makefile.am (readelf.o): Update dependencies. * Makefile.in: Regenerated. cpu/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> * m32c.cpu, m32c.opc: Machine description for the Renesas M32C. gas/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for the Renesas M32C. * Makefile.am (CPU_TYPES): List m32c. (TARGET_CPU_CFILES): List config/tc-m32c.c. (TARGET_CPU_HFILES): List config/tc-m32c.h. * configure.in: Add case for m32c. * configure.tgt: Add cases for m32c and m32c-*-elf. * configure: Regenerated. * config/tc-m32c.c, config/tc-m32c.h: New files. * doc/Makefile.am (CPU_DOCS): Add c-m32c.texi. * doc/Makefile.in: Regenerated. * doc/all.texi: Set M32C. * doc/as.texinfo: Add text for the M32C-specific options and line comment characters, and refer to c-m32c.texi. * doc/c-m32c.texi: New file. include/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> * dis-asm.h (print_insn_m32c): New declaration. include/elf/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for Renesas M32C and M16C. * common.h (EM_M32C): New machine number. * m32c.h: New file. ld/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for the Renesas M32C and M16C. * Makefile.am (ALL_EMULATIONS): Add eelf32m32c.o. (eelf32m32c.c): New target. * Makefile.in: Regenerated. * configure.tgt: Add case for m32c-*-elf. * emulparams/elf32m32c.sh: New file. opcodes/ChangeLog: 2005-07-14 Jim Blandy <jimb@redhat.com> Add support for the Renesas M32C and M16C. * m32c-asm.c, m32c-desc.c, m32c-dis.c, m32c-ibld.c, m32c-opc.c: New. * m32c-desc.h, m32c-opc.h: New. * Makefile.am (HFILES): List m32c-desc.h and m32c-opc.h. (CFILES): List m32c-asm.c, m32c-desc.c, m32c-dis.c, m32c-ibld.c, m32c-opc.c. (ALL_MACHINES): List m32c-asm.lo, m32c-desc.lo, m32c-dis.lo, m32c-ibld.lo, m32c-opc.lo. (CLEANFILES): List stamp-m32c. (M32C_DEPS): List stamp-m32c, if CGEN_MAINT. (CGEN_CPUS): Add m32c. (m32c-asm.c, m32c-desc.c, m32c-dis.c, m32c-ibld.c, m32c-opc.c) (m32c-desc.h, m32c-opc.h): Depend on M32C_DEPS. (m32c_opc_h): New variable. (stamp-m32c, m32c-asm.lo, m32c-desc.lo, m32c-dis.lo, m32c-ibld.lo) (m32c-opc.lo): New rules. * Makefile.in: Regenerated. * configure.in: Add case for bfd_m32c_arch. * configure: Regenerated. * disassemble.c (ARCH_m32c): New. [ARCH_m32c]: #include "m32c-desc.h". (disassembler) [ARCH_m32c]: Add case for bfd_arch_m32c. (disassemble_init_for_target) [ARCH_m32c]: Same. * cgen-ops.h, cgen-types.h: New files. * Makefile.am (HFILES): List them. * Makefile.in: Regenerated.
2005-07-15 00:52:28 +02:00
@end menu
@node M32C-Opts
@section M32C Options
@cindex options, M32C
@cindex M32C options
The Renesas M32C version of @code{@value{AS}} has two
machine-dependent options:
@table @code
@item -m32c
@cindex @samp{-m32c} option, M32C
@cindex architecture options, M32C
@cindex M32C architecture option
Assemble M32C instructions.
@item -m16c
@cindex @samp{-m16c} option, M16C
@cindex architecture options, M16C
@cindex M16C architecture option
Assemble M16C instructions (default).
@end table
@node M32C-Modifiers
@section Symbolic Operand Modifiers
@cindex M32C modifiers
@cindex syntax, M32C
The assembler supports several modifiers when using symbol addresses
in M32C instruction operands. The general syntax is the following:
@smallexample
%modifier(symbol)
@end smallexample
@table @code
@cindex symbol modifiers
@item %dsp8
@itemx %dsp16
These modifiers override the assembler's assumptions about how big a
symbol's address is. Normally, when it sees an operand like
@samp{sym[a0]} it assumes @samp{sym} may require the widest
displacement field (16 bits for @samp{-m16c}, 24 bits for
@samp{-m32c}). These modifiers tell it to assume the address will fit
in an 8 or 16 bit (respectively) unsigned displacement. Note that, of
course, if it doesn't actually fit you will get linker errors. Example:
@smallexample
mov.w %dsp8(sym)[a0],r1
mov.b #0,%dsp8(sym)[a0]
@end smallexample
@item %hi8
This modifier allows you to load bits 16 through 23 of a 24 bit
address into an 8 bit register. This is useful with, for example, the
M16C @samp{smovf} instruction, which expects a 20 bit address in
@samp{r1h} and @samp{a0}. Example:
@smallexample
mov.b #%hi8(sym),r1h
mov.w #%lo16(sym),a0
smovf.b
@end smallexample
@item %lo16
Likewise, this modifier allows you to load bits 0 through 15 of a 24
bit address into a 16 bit register.
@item %hi16
This modifier allows you to load bits 16 through 31 of a 32 bit
address into a 16 bit register. While the M32C family only has 24
bits of address space, it does support addresses in pairs of 16 bit
registers (like @samp{a1a0} for the @samp{lde} instruction). This
modifier is for loading the upper half in such cases. Example:
@smallexample
mov.w #%hi16(sym),a1
mov.w #%lo16(sym),a0
@dots{}
lde.w [a1a0],r1
@end smallexample
@end table