127 lines
3.0 KiB
Plaintext
127 lines
3.0 KiB
Plaintext
@c Copyright 2001, 2002
|
|
@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 PPC-Dependent
|
|
@chapter PowerPC Dependent Features
|
|
@end ifset
|
|
@ifclear GENERIC
|
|
@node Machine Dependencies
|
|
@chapter PowerPC Dependent Features
|
|
@end ifclear
|
|
|
|
@cindex PowerPC support
|
|
@menu
|
|
* PowerPC-Opts:: Options
|
|
* PowerPC-Pseudo:: PowerPC Assembler Directives
|
|
@end menu
|
|
|
|
@node PowerPC-Opts
|
|
@section Options
|
|
|
|
@cindex options for PowerPC
|
|
@cindex PowerPC options
|
|
@cindex architectures, PowerPC
|
|
@cindex PowerPC architectures
|
|
The PowerPC chip family includes several successive levels, using the same
|
|
core instruction set, but including a few additional instructions at
|
|
each level. There are exceptions to this however. For details on what
|
|
instructions each variant supports, please see the chip's architecture
|
|
reference manual.
|
|
|
|
The following table lists all available PowerPC options.
|
|
|
|
@table @code
|
|
@item -mpwrx | -mpwr2
|
|
Generate code for POWER/2 (RIOS2).
|
|
|
|
@item -mpwr
|
|
Generate code for POWER (RIOS1)
|
|
|
|
@item -m601
|
|
Generate code for PowerPC 601.
|
|
|
|
@item -mppc, -mppc32, -m603, -m604
|
|
Generate code for PowerPC 603/604.
|
|
|
|
@item -m403, -m405
|
|
Generate code for PowerPC 403/405.
|
|
|
|
@item -m440
|
|
Generate code for PowerPC 440. BookE and some 405 instructions.
|
|
|
|
@item -m7400, -m7410, -m7450, -m7455
|
|
Generate code for PowerPC 7400/7410/7450/7455.
|
|
|
|
@item -mppc64, -m620
|
|
Generate code for PowerPC 620/625/630.
|
|
|
|
@item -mppc64bridge
|
|
Generate code for PowerPC 64, including bridge insns.
|
|
|
|
@item -mbooke64
|
|
Generate code for 64-bit BookE.
|
|
|
|
@item -mbooke, mbooke32
|
|
Generate code for 32-bit BookE.
|
|
|
|
@item -maltivec
|
|
Generate code for processors with AltiVec instructions.
|
|
|
|
@item -mpower4
|
|
Generate code for Power4 architecture.
|
|
|
|
@item -mcom
|
|
Generate code Power/PowerPC common instructions.
|
|
|
|
@item -many
|
|
Generate code for any architecture (PWR/PWRX/PPC).
|
|
|
|
@item -mregnames
|
|
Allow symbolic names for registers.
|
|
|
|
@item -mno-regnames
|
|
Do not allow symbolic names for registers.
|
|
|
|
@item -mrelocatable
|
|
Support for GCC's -mrelocatble option.
|
|
|
|
@item -mrelocatable-lib
|
|
Support for GCC's -mrelocatble-lib option.
|
|
|
|
@item -memb
|
|
Set PPC_EMB bit in ELF flags.
|
|
|
|
@item -mlittle, -mlittle-endian
|
|
Generate code for a little endian machine.
|
|
|
|
@item -mbig, -mbig-endian
|
|
Generate code for a big endian machine.
|
|
|
|
@item -msolaris
|
|
Generate code for Solaris.
|
|
|
|
@item -mno-solaris
|
|
Do not generate code for Solaris.
|
|
@end table
|
|
|
|
|
|
@node PowerPC-Pseudo
|
|
@section PowerPC Assembler Directives
|
|
|
|
@cindex directives for PowerPC
|
|
@cindex PowerPC directives
|
|
A number of assembler directives are available for PowerPC. The
|
|
following table is far from complete.
|
|
|
|
@table @code
|
|
@item .machine "string"
|
|
This directive allows you to change the machine for which code is
|
|
generated. @code{"string"} may be any of the -m cpu selection options
|
|
(without the -m) enclosed in double quotes, @code{"push"}, or
|
|
@code{"pop"}. @code{.machine "push"} saves the currently selected
|
|
cpu, which may be restored with @code{.machine "pop"}.
|
|
@end table
|