-@c Copyright 2008, 2009, 2011
-@c Free Software Foundation, Inc.
+@c Copyright (C) 2008-2014 Free Software Foundation, Inc.
@c This is part of the GAS manual.
@c For copying conditions, see the file as.texinfo.
@ifset GENERIC
arguments that are passed on the stack are aligned to their natural
alignments. This option is the default.
+@cindex @samp{-mcpu=}
+@item -mcpu=@var{name}
+This option tells the assembler the target CPU type. Currently the
+@code{rx200}, @code{rx600} and @code{rx610} are recognised as valid
+cpu names. Attempting to assemble an instruction not supported by the
+indicated cpu type will result in an error message being generated.
+
@end table
@node RX-Modifiers