1@c Copyright 2001 Free Software Foundation, Inc. 2@c This is part of the GAS manual. 3@c For copying conditions, see the file as.texinfo. 4@page 5@node M88K-Dependent 6@chapter Motorola M88K Dependent Features 7 8@cindex M88K support 9@menu 10* M88K Directives:: M88K Machine Directives 11@end menu 12 13@node M88K Directives 14@section M88K Machine Directives 15 16The M88K version of the assembler supports the following machine 17directives: 18 19@table @code 20@cindex @code{align} directive, M88K 21@item .align 22This directive aligns the section program counter on the next 4-byte 23boundary. 24 25@cindex @code{dfloat} directive, M88K 26@item .dfloat @var{expr} 27This assembles a double precision (64-bit) floating point constant. 28 29@cindex @code{ffloat} directive, M88K 30@item .ffloat @var{expr} 31This assembles a single precision (32-bit) floating point constant. 32 33@cindex @code{half} directive, M88K 34@item .half @var{expr} 35This directive assembles a half-word (16-bit) constant. 36 37@cindex @code{word} directive, M88K 38@item .word @var{expr} 39This assembles a word (32-bit) constant. 40 41@cindex @code{string} directive, M88K 42@item .string "@var{str}" 43This directive behaves like the standard @code{.ascii} directive for 44copying @var{str} into the object file. The string is not terminated 45with a null byte. 46 47@cindex @code{set} directive, M88K 48@item .set @var{symbol}, @var{value} 49This directive creates a symbol named @var{symbol} which is an alias for 50another symbol (possibly not yet defined). This should not be confused 51with the mnemonic @code{set}, which is a legitimate M88K instruction. 52 53@cindex @code{def} directive, M88K 54@item .def @var{symbol}, @var{value} 55This directive is synonymous with @code{.set} and is presumably provided 56for compatibility with other M88K assemblers. 57 58@cindex @code{bss} directive, M88K 59@item .bss @var{symbol}, @var{length}, @var{align} 60Reserve @var{length} bytes in the bss section for a local @var{symbol}, 61aligned to the power of two specified by @var{align}. @var{length} and 62@var{align} must be positive absolute expressions. This directive 63differs from @samp{.lcomm} only in that it permits you to specify 64an alignment. @xref{Lcomm,,@code{.lcomm}}. 65 66@end table 67