The compiler is smart enough to turn this into a multiplication by 8:

    cf54:       3d c1 00 03     sli r1,r14,3
    cf58:       59 a1 00 00     sw (r13+0),r1

and any real division by ll would be trapped by ./check-error.c .

Still, I'd better simplify the code.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>