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