gas/doc/c-metag.texi

   1 @c Copyright 2013 Free Software Foundation, Inc.
   2 @c Contributed by Imagination Technologies Ltd.
   3 @c This is part of the GAS manual.
   4 @c For copying conditions, see the file as.texinfo.
   5 @ifset GENERIC
   6 @page
   7 @node Meta-Dependent
   8 @chapter Meta Dependent Features
   9 @end ifset
  10 @ifclear GENERIC
  11 @node Machine Dependencies
  12 @chapter Meta Dependent Features
  13 @end ifclear
  14
  15 @cindex Meta support
  16 @menu
  17 * Meta Options::                Options
  18 * Meta Syntax::                 Meta Assembler Syntax
  19 @end menu
  20
  21 @node Meta Options
  22 @section Options
  23
  24 @cindex options for Meta
  25 @cindex Meta options
  26 @cindex architectures, Meta
  27 @cindex Meta architectures
  28
  29 The Imagination Technologies Meta architecture is implemented in a
  30 number of versions, with each new version adding new features such as
  31 instructions and registers. For precise details of what instructions
  32 each core supports, please see the chip's technical reference manual.
  33
  34 The following table lists all available Meta options.
  35
  36 @table @code
  37 @item -mcpu=metac11
  38 Generate code for Meta 1.1.
  39
  40 @item -mcpu=metac12
  41 Generate code for Meta 1.2.
  42
  43 @item -mcpu=metac21
  44 Generate code for Meta 2.1.
  45
  46 @item -mfpu=metac21
  47 Allow code to use FPU hardware of Meta 2.1.
  48
  49 @end table
  50
  51 @node Meta Syntax
  52 @section Syntax
  53
  54 @menu
  55 * Meta-Chars::                Special Characters
  56 * Meta-Regs::                 Register Names
  57 @end menu
  58
  59 @node Meta-Chars
  60 @subsection Special Characters
  61
  62 @cindex line comment character, Meta
  63 @cindex Meta line comment character
  64 @samp{!} is the line comment character.
  65
  66 @cindex line separator, Meta
  67 @cindex statement separator, Meta
  68 @cindex Meta line separator
  69 You can use @samp{;} instead of a newline to separate statements.
  70
  71 @cindex symbol names, @samp{$} in
  72 @cindex @code{$} in symbol names
  73 Since @samp{$} has no special meaning, you may use it in symbol names.
  74
  75 @node Meta-Regs
  76 @subsection Register Names
  77
  78 @cindex Meta registers
  79 @cindex registers, Meta
  80 Registers can be specified either using their mnemonic names, such as
  81 @samp{D0Re0}, or using the unit plus register number separated by a @samp{.},
  82 such as @samp{D0.0}.