资料来源 : Free On-Line Dictionary of Computing

speculative execution
     
         A technique allows a {superscalar} processor to
        keep its {functional units} as busy as possible by executing
        instructions before it is known that they will be needed.
     
        The {Intel P6} uses speculative execution.
     
        Compare {branch prediction}, {speculative evaluation}.
     
        (1995-05-05)