Mill Computing, Inc. Forums The Mill Architecture Prediction Reply To: Prediction

Ivan Godard
Post count: 689

On a Mill an indirect is the same as a direct: Mills predict exits, not branches, and the prediction includes the address of the predicted target. The predictor neither knows or cares how control will get there.

A legacy machine usually has two predictors, one taken/untaken for direct branches, and another that includes the target address for indirect branches. The latter is often called a Branch Target Table. How these hook together varies.