83 lines
2 KiB
Text
83 lines
2 KiB
Text
|
@c Copyright 2013 Free Software Foundation, Inc.
|
||
|
|
@c Contributed by Imagination Technologies Ltd.
|
||
|
|
@c This is part of the GAS manual.
|
||
|
|
@c For copying conditions, see the file as.texinfo.
|
||
|
|
@ifset GENERIC
|
||
|
|
@page
|
||
|
|
@node Meta-Dependent
|
||
|
|
@chapter Meta Dependent Features
|
||
|
|
@end ifset
|
||
|
|
@ifclear GENERIC
|
||
|
|
@node Machine Dependencies
|
||
|
|
@chapter Meta Dependent Features
|
||
|
|
@end ifclear
|
||
|
|
|
||
|
|
@cindex Meta support
|
||
|
|
@menu
|
||
|
|
* Meta Options:: Options
|
||
|
|
* Meta Syntax:: Meta Assembler Syntax
|
||
|
|
@end menu
|
||
|
|
|
||
|
|
@node Meta Options
|
||
|
|
@section Options
|
||
|
|
|
||
|
|
@cindex options for Meta
|
||
|
|
@cindex Meta options
|
||
|
|
@cindex architectures, Meta
|
||
|
|
@cindex Meta architectures
|
||
|
|
|
||
|
|
The Imagination Technologies Meta architecture is implemented in a
|
||
|
|
number of versions, with each new version adding new features such as
|
||
|
|
instructions and registers. For precise details of what instructions
|
||
|
|
each core supports, please see the chip's technical reference manual.
|
||
|
|
|
||
|
|
The following table lists all available Meta options.
|
||
|
|
|
||
|
|
@table @code
|
||
|
|
@item -mcpu=metac11
|
||
|
|
Generate code for Meta 1.1.
|
||
|
|
|
||
|
|
@item -mcpu=metac12
|
||
|
|
Generate code for Meta 1.2.
|
||
|
|
|
||
|
|
@item -mcpu=metac21
|
||
|
|
Generate code for Meta 2.1.
|
||
|
|
|
||
|
|
@item -mfpu=metac21
|
||
|
|
Allow code to use FPU hardware of Meta 2.1.
|
||
|
|
|
||
|
|
@end table
|
||
|
|
|
||
|
|
@node Meta Syntax
|
||
|
|
@section Syntax
|
||
|
|
|
||
|
|
@menu
|
||
|
|
* Meta-Chars:: Special Characters
|
||
|
|
* Meta-Regs:: Register Names
|
||
|
|
@end menu
|
||
|
|
|
||
|
|
@node Meta-Chars
|
||
|
|
@subsection Special Characters
|
||
|
|
|
||
|
|
@cindex line comment character, Meta
|
||
|
|
@cindex Meta line comment character
|
||
|
|
@samp{!} is the line comment character.
|
||
|
|
|
||
|
|
@cindex line separator, Meta
|
||
|
|
@cindex statement separator, Meta
|
||
|
|
@cindex Meta line separator
|
||
|
|
You can use @samp{;} instead of a newline to separate statements.
|
||
|
|
|
||
|
|
@cindex symbol names, @samp{$} in
|
||
|
|
@cindex @code{$} in symbol names
|
||
|
|
Since @samp{$} has no special meaning, you may use it in symbol names.
|
||
|
|
|
||
|
|
@node Meta-Regs
|
||
|
|
@subsection Register Names
|
||
|
|
|
||
|
|
@cindex Meta registers
|
||
|
|
@cindex registers, Meta
|
||
|
|
Registers can be specified either using their mnemonic names, such as
|
||
|
|
@samp{D0Re0}, or using the unit plus register number separated by a @samp{.},
|
||
|
|
such as @samp{D0.0}.
|