oops.  botched fix of harmess warning.
corrected source attached.

just for a giggle, i ran this test on a few handy machines to get a feel
for relative speed of a single core.  since this test is small enough to
fit in the tiniest cache, i would think that memory speed or any other
external factor would be unimportant:

open rd/marvell kirkwood				471.97u 0.00s 472.25r
Intel(R) Atom(TM) CPU  330   @ 1.60GHz		48.47u 0.00s 48.48r
Intel(R) Pentium(R) 4 CPU 3.00GHz		40.72u 0.00s 40.76r
AMD Athlon(tm) 64 X2 Dual Core Processor 3800+	30.62u 0.00s 30.64r
AMD Athlon(tm) 64 X2 Dual Core Processor 5000+	23.18u 0.00s 23.19r
Intel(R) Xeon(R) CPU            5120  @ 1.86GHz	23.16u 0.00s 23.08r
Intel(R) Xeon(R) CPU           E5540  @ 2.53GHz	17.26u 0.00s 17.26r
Intel(R) Core(TM) i7 CPU         920  @ 2.67GHz	16.86u 0.00s 16.86r
Intel(R) Xeon(R) CPU           E5630  @ 2.53GHz	10.46u 0.00s 10.50r

perhaps the arm's vlong arithmitic isn't as well optimized as x86.  the
atom also is conspicuously slow, but unfortunately with no obvious
excuses.

- erik