Now I've heard there was a secret code
That Duff did type, and it eased the load
But you don't really care for coding, do you?
It goes like this
The for, the switch
The minor fallthrough, the performance lift
The baffled dev composing unrolled loops, yeah
Unrolled loops, yeah
Unrolled loops, yeah
Unrolled loops, yeah
Unrolled loo-oo-oo-oo-oops, yeah