| @c Copyright 2001 Free Software Foundation, Inc. |
| @c This is part of the GAS manual. |
| @c For copying conditions, see the file as.texinfo. |
| @page |
| @node M88K-Dependent |
| @chapter Motorola M88K Dependent Features |
| |
| @cindex M88K support |
| @menu |
| * M88K Directives:: M88K Machine Directives |
| @end menu |
| |
| @node M88K Directives |
| @section M88K Machine Directives |
| |
| The M88K version of the assembler supports the following machine |
| directives: |
| |
| @table @code |
| @cindex @code{align} directive, M88K |
| @item .align |
| This directive aligns the section program counter on the next 4-byte |
| boundary. |
| |
| @cindex @code{dfloat} directive, M88K |
| @item .dfloat @var{expr} |
| This assembles a double precision (64-bit) floating point constant. |
| |
| @cindex @code{ffloat} directive, M88K |
| @item .ffloat @var{expr} |
| This assembles a single precision (32-bit) floating point constant. |
| |
| @cindex @code{half} directive, M88K |
| @item .half @var{expr} |
| This directive assembles a half-word (16-bit) constant. |
| |
| @cindex @code{word} directive, M88K |
| @item .word @var{expr} |
| This assembles a word (32-bit) constant. |
| |
| @cindex @code{string} directive, M88K |
| @item .string "@var{str}" |
| This directive behaves like the standard @code{.ascii} directive for |
| copying @var{str} into the object file. The string is not terminated |
| with a null byte. |
| |
| @cindex @code{set} directive, M88K |
| @item .set @var{symbol}, @var{value} |
| This directive creates a symbol named @var{symbol} which is an alias for |
| another symbol (possibly not yet defined). This should not be confused |
| with the mnemonic @code{set}, which is a legitimate M88K instruction. |
| |
| @cindex @code{def} directive, M88K |
| @item .def @var{symbol}, @var{value} |
| This directive is synonymous with @code{.set} and is presumably provided |
| for compatibility with other M88K assemblers. |
| |
| @cindex @code{bss} directive, M88K |
| @item .bss @var{symbol}, @var{length}, @var{align} |
| Reserve @var{length} bytes in the bss section for a local @var{symbol}, |
| aligned to the power of two specified by @var{align}. @var{length} and |
| @var{align} must be positive absolute expressions. This directive |
| differs from @samp{.lcomm} only in that it permits you to specify |
| an alignment. @xref{Lcomm,,@code{.lcomm}}. |
| |
| @end table |
