@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