97d40d3d4a
us up to version 2.17.50.20070703, at the last GPLv2 commit. Amongst others, this added upstream support for some FreeBSD-specific things that we previously had to manually hack in, such as the OSABI label support, and so on. There are also quite a number of new files, some for cpu's (e.g. SPU) that we may or may not be interested in, but those can be cleaned up later on, if needed.
145 lines
3.4 KiB
Plaintext
145 lines
3.4 KiB
Plaintext
@c Copyright 2001, 2002, 2003, 2005, 2006
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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 PPC-Dependent
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@chapter PowerPC 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 PowerPC Dependent Features
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@end ifclear
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@cindex PowerPC support
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@menu
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* PowerPC-Opts:: Options
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* PowerPC-Pseudo:: PowerPC Assembler Directives
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@end menu
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@node PowerPC-Opts
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@section Options
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@cindex options for PowerPC
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@cindex PowerPC options
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@cindex architectures, PowerPC
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@cindex PowerPC architectures
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The PowerPC chip family includes several successive levels, using the same
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core instruction set, but including a few additional instructions at
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each level. There are exceptions to this however. For details on what
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instructions each variant supports, please see the chip's architecture
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reference manual.
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The following table lists all available PowerPC options.
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@table @code
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@item -mpwrx | -mpwr2
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Generate code for POWER/2 (RIOS2).
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@item -mpwr
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Generate code for POWER (RIOS1)
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@item -m601
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Generate code for PowerPC 601.
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@item -mppc, -mppc32, -m603, -m604
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Generate code for PowerPC 603/604.
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@item -m403, -m405
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Generate code for PowerPC 403/405.
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@item -m440
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Generate code for PowerPC 440. BookE and some 405 instructions.
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@item -m7400, -m7410, -m7450, -m7455
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Generate code for PowerPC 7400/7410/7450/7455.
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@item -mppc64, -m620
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Generate code for PowerPC 620/625/630.
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@item -me500, -me500x2
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Generate code for Motorola e500 core complex.
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@item -mspe
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Generate code for Motorola SPE instructions.
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@item -mppc64bridge
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Generate code for PowerPC 64, including bridge insns.
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@item -mbooke64
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Generate code for 64-bit BookE.
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@item -mbooke, mbooke32
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Generate code for 32-bit BookE.
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@item -me300
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Generate code for PowerPC e300 family.
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@item -maltivec
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Generate code for processors with AltiVec instructions.
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@item -mpower4
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Generate code for Power4 architecture.
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@item -mpower5
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Generate code for Power5 architecture.
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@item -mpower6
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Generate code for Power6 architecture.
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@item -mcell
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Generate code for Cell Broadband Engine architecture.
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@item -mcom
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Generate code Power/PowerPC common instructions.
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@item -many
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Generate code for any architecture (PWR/PWRX/PPC).
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@item -mregnames
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Allow symbolic names for registers.
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@item -mno-regnames
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Do not allow symbolic names for registers.
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@item -mrelocatable
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Support for GCC's -mrelocatable option.
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@item -mrelocatable-lib
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Support for GCC's -mrelocatable-lib option.
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@item -memb
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Set PPC_EMB bit in ELF flags.
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@item -mlittle, -mlittle-endian
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Generate code for a little endian machine.
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@item -mbig, -mbig-endian
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Generate code for a big endian machine.
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@item -msolaris
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Generate code for Solaris.
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@item -mno-solaris
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Do not generate code for Solaris.
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@end table
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@node PowerPC-Pseudo
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@section PowerPC Assembler Directives
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@cindex directives for PowerPC
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@cindex PowerPC directives
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A number of assembler directives are available for PowerPC. The
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following table is far from complete.
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@table @code
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@item .machine "string"
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This directive allows you to change the machine for which code is
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generated. @code{"string"} may be any of the -m cpu selection options
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(without the -m) enclosed in double quotes, @code{"push"}, or
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@code{"pop"}. @code{.machine "push"} saves the currently selected
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cpu, which may be restored with @code{.machine "pop"}.
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@end table
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