-@c Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000, 2003,
-@c 2004 Free Software Foundation, Inc.
+@c Copyright (C) 1991-2014 Free Software Foundation, Inc.
@c This is part of the GAS manual.
@c For copying conditions, see the file as.texinfo.
@ifset GENERIC
@table @samp
+@cindex @samp{-march=} command line option, M680x0
+@item -march=@var{architecture}
+This option specifies a target architecture. The following
+architectures are recognized:
+@code{68000},
+@code{68010},
+@code{68020},
+@code{68030},
+@code{68040},
+@code{68060},
+@code{cpu32},
+@code{isaa},
+@code{isaaplus},
+@code{isab},
+@code{isac} and
+@code{cfv4e}.
+
+
+@cindex @samp{-mcpu=} command line option, M680x0
+@item -mcpu=@var{cpu}
+This option specifies a target cpu. When used in conjunction with the
+@option{-march} option, the cpu must be within the specified
+architecture. Also, the generic features of the architecture are used
+for instruction generation, rather than those of the specific chip.
+
+@cindex @samp{-m[no-]68851} command line option, M680x0
+@cindex @samp{-m[no-]68881} command line option, M680x0
+@cindex @samp{-m[no-]div} command line option, M680x0
+@cindex @samp{-m[no-]usp} command line option, M680x0
+@cindex @samp{-m[no-]float} command line option, M680x0
+@cindex @samp{-m[no-]mac} command line option, M680x0
+@cindex @samp{-m[no-]emac} command line option, M680x0
+@item -m[no-]68851
+@itemx -m[no-]68881
+@itemx -m[no-]div
+@itemx -m[no-]usp
+@itemx -m[no-]float
+@itemx -m[no-]mac
+@itemx -m[no-]emac
+
+Enable or disable various architecture specific features. If a chip
+or architecture by default supports an option (for instance
+@option{-march=isaaplus} includes the @option{-mdiv} option),
+explicitly disabling the option will override the default.
+
@cindex @samp{-l} option, M680x0
@item -l
You can use the @samp{-l} option to shorten the size of references to undefined
@cindex @samp{--base-size-default-16}
@cindex @samp{--base-size-default-32}
-@item --base-size-default-16 --base-size-default-32
+@item --base-size-default-16 --base-size-default-32
If you use an addressing mode with a base register without specifying
the size, @code{@value{AS}} will normally use the full 32 bit value.
For example, the addressing mode @samp{%a0@@(%d0)} is equivalent to
Assemble for the CPU32 family of chips.
@item -m5200
-@item -m5202
-@item -m5204
-@item -m5206
-@item -m5206e
-@item -m521x
-@item -m5249
-@item -m528x
-@item -m5307
-@item -m5407
-@item -m547x
-@item -m548x
-@item -mcfv4
-@item -mcfv4e
+@itemx -m5202
+@itemx -m5204
+@itemx -m5206
+@itemx -m5206e
+@itemx -m521x
+@itemx -m5249
+@itemx -m528x
+@itemx -m5307
+@itemx -m5407
+@itemx -m547x
+@itemx -m548x
+@itemx -mcfv4
+@itemx -mcfv4e
Assemble for the ColdFire family of chips.
@item -m68881
@item Address Register
@samp{%a0} through @samp{%a7}@*
-@samp{%a7} is also known as @samp{%sp}, i.e. the Stack Pointer. @code{%a6}
+@samp{%a7} is also known as @samp{%sp}, i.e., the Stack Pointer. @code{%a6}
is also known as @samp{%fp}, the Frame Pointer.
@item Address Register Indirect
@table @dfn
@item Address Register Indirect
-@samp{(%a0)} through @samp{(%a7)}@*
-@samp{%a7} is also known as @samp{%sp}, i.e. the Stack Pointer. @code{%a6}
+@samp{(%a0)} through @samp{(%a7)}@*
+@samp{%a7} is also known as @samp{%sp}, i.e., the Stack Pointer. @code{%a6}
is also known as @samp{%fp}, the Frame Pointer.
@item Address Register Postincrement
@cindex @code{skip} directive, M680x0
@item .skip
This directive is identical to a @code{.space} directive.
+
+@cindex @code{arch} directive, M680x0
+@item .arch @var{name}
+Select the target architecture and extension features. Valid values
+for @var{name} are the same as for the @option{-march} command line
+option. This directive cannot be specified after
+any instructions have been assembled. If it is given multiple times,
+or in conjunction with the @option{-march} option, all uses must be for
+the same architecture and extension set.
+
+@cindex @code{cpu} directive, M680x0
+@item .cpu @var{name}
+Select the target cpu. Valid valuse
+for @var{name} are the same as for the @option{-mcpu} command line
+option. This directive cannot be specified after
+any instructions have been assembled. If it is given multiple times,
+or in conjunction with the @option{-mopt} option, all uses must be for
+the same cpu.
+
@end table
@need 2000
@subsection Special Characters
@cindex special characters, M680x0
-@cindex M680x0 immediate character
-@cindex immediate character, M680x0
+
@cindex M680x0 line comment character
@cindex line comment character, M680x0
@cindex comments, M680x0
-The immediate character is @samp{#} for Sun compatibility. The
-line-comment character is @samp{|} (unless the @samp{--bitwise-or}
-option is used). If a @samp{#} appears at the beginning of a line, it
-is treated as a comment unless it looks like @samp{# line file}, in
-which case it is treated normally.
+Line comments are introduced by the @samp{|} character appearing
+anywhere on a line, unless the @option{--bitwise-or} command line option
+has been specified.
+
+An asterisk (@samp{*}) as the first character on a line marks the
+start of a line comment as well.
+
+@cindex M680x0 immediate character
+@cindex immediate character, M680x0
+
+A hash character (@samp{#}) as the first character on a line also
+marks the start of a line comment, but in this case it could also be a
+logical line number directive (@pxref{Comments}) or a preprocessor
+control command (@pxref{Preprocessing}). If the hash character
+appears elsewhere on a line it is used to introduce an immediate
+value. (This is for compatibility with Sun's assembler).
+
+@cindex M680x0 line separator
+@cindex line separator, M680x0
+Multiple statements on the same line can appear if they are separated
+by the @samp{;} character.
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