Abstract: A method for error detection includes receiving a block of data that is divided into a plurality of sub-blocks having respective offsets within the block and processing the data in each of the sub-blocks so as to compute respective partial error detection codes for the sub-blocks. The partial error detection codes of the sub-blocks are modified responsive to the respective offsets, and the modified partial error detection codes are combined to determine a block error detection code for the block of data.

Abstract: Cache apparatus, including first and second cache memories, coupled to receive and hold context information from an external memory with respect to tasks, each task activated by one or more activating events, so that the context information is available for access by a processor in performing the tasks. The cache apparatus further includes a mapper, which is coupled to receive a classification of the tasks as fast and slow tasks. The mapper is adapted, upon receipt of one of the activating events for one of the fast tasks to be performed by the processor, to cause the context information with respect thereto to be received in the first cache memory, and upon receipt of one of the activating events for one of the slow tasks to be performed by the processor, to cause the context information with respect thereto to be received in the second cache memory.