US Patent 7752425 Data processing apparatus having trace and prediction logic

A data processing apparatus is disclosed comprising: trace logic for monitoring behavior of a portion of said data processing apparatus; and prediction logic operable to provide at least one prediction as to at least one step of said behavior of said portion of said data processing apparatus; wherein said trace logic is operable to: monitor behavior of said portion of said data processing apparatus; determine from said monitored behavior whether or not said at least one prediction is correct; and output a prediction indicator indicating whether or not said at least one prediction is correct.