@samp{-no-m4650} turns off this option.
@item -mcpu=@var{CPU}
-Generate code for a particular MIPS cpu. This has little effect on the
-assembler, but it is passed by @code{@value{GCC}}.
+Generate code for a particular MIPS cpu. It is exactly equivalent to
+@samp{-m@var{cpu}}, except that there are more value of @var{cpu}
+understood.
@cindex emulation
@item --emulation=@var{name}