Abstract: In order to effectively reduce branch hazards without a restriction to a structure of a pipeline, the contents of instructions and the like during control of conditional branching in an information processing apparatus which processes an instruction by pipeline processing, before a condition of a conditional branch instruction becomes defined, that is, before a branch judgement is made, pipeline information of a subsequent instruction which is subsequent to the conditional branch instruction is saved so that an instruction beyond a branch is fed to a pipeline in advance. When the condition is met, the instruction beyond the branch is executed as it directly is. When the condition is not met, the saved pipeline information of the subsequent instruction is returned to the pipeline and the subsequent instruction which is subsequent to the conditional branch instruction is executed.

Abstract: A filtration apparatus for filtering water has a filter cloth which is supported on one side by support means against the pressure applied by water being filtered. During cleaning by reverse flow of water the cloth billows away from said support and cleaning means contact the billowed out filter cloth to clean it. To improve the cleaning effect, the cleaning means comprise a movable plate which is contacted by a region of said billowed out filter cloth during the reverse flow. The plate has at least one aperture at which said reverse flow occurs, and the aperture is moved relative to the filter cloth by movement of the plate.