gas/doc/c-ppc.texi

   1 @c Copyright 2001, 2002, 2003, 2005, 2006, 2007, 2008
   2 @c Free Software Foundation, Inc.
   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 PPC-Dependent
   8 @chapter PowerPC Dependent Features
   9 @end ifset
  10 @ifclear GENERIC
  11 @node Machine Dependencies
  12 @chapter PowerPC Dependent Features
  13 @end ifclear
  14
  15 @cindex PowerPC support
  16 @menu
  17 * PowerPC-Opts::                Options
  18 * PowerPC-Pseudo::              PowerPC Assembler Directives
  19 @end menu
  20
  21 @node PowerPC-Opts
  22 @section Options
  23
  24 @cindex options for PowerPC
  25 @cindex PowerPC options
  26 @cindex architectures, PowerPC
  27 @cindex PowerPC architectures
  28 The PowerPC chip family includes several successive levels, using the same
  29 core instruction set, but including a few additional instructions at
  30 each level.  There are exceptions to this however.  For details on what
  31 instructions each variant supports, please see the chip's architecture
  32 reference manual.
  33
  34 The following table lists all available PowerPC options.
  35
  36 @table @code
  37 @item -mpwrx | -mpwr2
  38 Generate code for POWER/2 (RIOS2).
  39
  40 @item -mpwr
  41 Generate code for POWER (RIOS1)
  42
  43 @item -m601
  44 Generate code for PowerPC 601.
  45
  46 @item -mppc, -mppc32, -m603, -m604
  47 Generate code for PowerPC 603/604.
  48
  49 @item -m403, -m405
  50 Generate code for PowerPC 403/405.
  51
  52 @item -m440
  53 Generate code for PowerPC 440.  BookE and some 405 instructions.
  54
  55 @item -m7400, -m7410, -m7450, -m7455
  56 Generate code for PowerPC 7400/7410/7450/7455.
  57
  58 @item -m750cl
  59 Generate code for PowerPC 750CL.
  60
  61 @item -mppc64, -m620
  62 Generate code for PowerPC 620/625/630.
  63
  64 @item -me500, -me500x2
  65 Generate code for Motorola e500 core complex.
  66
  67 @item -mspe
  68 Generate code for Motorola SPE instructions.
  69
  70 @item -mppc64bridge
  71 Generate code for PowerPC 64, including bridge insns.
  72
  73 @item -mbooke
  74 Generate code for 32-bit BookE.
  75
  76 @item -mppca2
  77 Generate code for A2 architecture.
  78
  79 @item -me300
  80 Generate code for PowerPC e300 family.
  81
  82 @item -maltivec
  83 Generate code for processors with AltiVec instructions.
  84
  85 @item -mvsx
  86 Generate code for processors with Vector-Scalar (VSX) instructions.
  87
  88 @item -mpower4
  89 Generate code for Power4 architecture.
  90
  91 @item -mpower5
  92 Generate code for Power5 architecture.
  93
  94 @item -mpower6
  95 Generate code for Power6 architecture.
  96
  97 @item -mpower7
  98 Generate code for Power7 architecture.
  99
 100 @item -mcell
 101 Generate code for Cell Broadband Engine architecture.
 102
 103 @item -mcom
 104 Generate code Power/PowerPC common instructions.
 105
 106 @item -many
 107 Generate code for any architecture (PWR/PWRX/PPC).
 108
 109 @item -mregnames
 110 Allow symbolic names for registers.
 111
 112 @item -mno-regnames
 113 Do not allow symbolic names for registers.
 114
 115 @item -mrelocatable
 116 Support for GCC's -mrelocatable option.
 117
 118 @item -mrelocatable-lib
 119 Support for GCC's -mrelocatable-lib option.
 120
 121 @item -memb
 122 Set PPC_EMB bit in ELF flags.
 123
 124 @item -mlittle, -mlittle-endian
 125 Generate code for a little endian machine.
 126
 127 @item -mbig, -mbig-endian
 128 Generate code for a big endian machine.
 129
 130 @item -msolaris
 131 Generate code for Solaris.
 132
 133 @item -mno-solaris
 134 Do not generate code for Solaris.
 135 @end table
 136
 137
 138 @node PowerPC-Pseudo
 139 @section PowerPC Assembler Directives
 140
 141 @cindex directives for PowerPC
 142 @cindex PowerPC directives
 143 A number of assembler directives are available for PowerPC.  The
 144 following table is far from complete.
 145
 146 @table @code
 147 @item .machine "string"
 148 This directive allows you to change the machine for which code is
 149 generated.  @code{"string"} may be any of the -m cpu selection options
 150 (without the -m) enclosed in double quotes, @code{"push"}, or
 151 @code{"pop"}.  @code{.machine "push"} saves the currently selected
 152 cpu, which may be restored with @code{.machine "pop"}.
 153 @end table