gas/doc/c-xc16x.texi

   1 @c Copyright 2006 Free Software Foundation, Inc.
   2 @c This is part of the GAS manual.
   3 @c For copying conditions, see the file as.texinfo.
   4
   5 @page
   6 @node xc16x-Dependent
   7 @chapter Infineon xc16x Dependent Features
   8
   9 @cindex xc16x support
  10 @menu
  11 * xc16x Directives::     xc16x Machine Directives
  12 @end menu
  13
  14 @node xc16x Directives
  15 @section xc16x Machine Directives
  16
  17 The xc16x version of the assembler supports the following machine
  18 directives:
  19
  20 @table @code
  21 @cindex @code{align} directive, xc16x
  22 @item .align
  23 This directive aligns the section program counter on the next 2-byte
  24 boundary.
  25
  26
  27 @cindex @code{byte} directive, xc16x
  28 @item .byte @var{expr}
  29 This directive assembles a half-word (8-bit) constant.
  30
  31 @cindex @code{word} directive, xc16x
  32 @item .word @var{expr}
  33 This assembles a word (16-bit) constant.
  34
  35 @cindex @code{ascii} directive, xc16x
  36 @item .ascii "@var{ascii}"
  37 This directive used for copying @var{str} into the object file.
  38 The string is terminated with a null byte.
  39
  40 @cindex @code{set} directive, xc16x
  41 @item .set @var{symbol}, @var{value}
  42 This directive creates a symbol named @var{symbol} which is an alias for
  43 another symbol (possibly not yet defined).  This should not be confused
  44 with the mnemonic @code{set}, which is a legitimate xc16x instruction.
  45
  46
  47
  48 @cindex @code{bss} directive, xc16x
  49 @item .bss @var{symbol}, @var{length}
  50 Reserve @var{length} bytes in the bss section for a local @var{symbol},
  51 aligned to the power of two specified by @var{align}.  @var{length} and
  52 @var{align} must be positive absolute expressions.  This directive
  53 differs from @samp{.lcomm} only in that it permits you to specify
  54 an alignment.
  55 @end table