This Design Idea presents a method for fast integer multiplying and multiplying by fractions. What can you do when you lack access to a hardware multiplier or MAC (multiply/accumulate) function and ...

Signal processing and communications algorithms frequently make use of dynamic bit rotates or shifts. Utilizing merged trees improves performance and reduces routing congestion using fewer resources.

I'm dealing with some performance critical code-- a function which is called > 10^10 times in a typical execution. I've noticed that author used a lot of bit shifting instructions (foo >> 5) * (bar >> ...