Patent attributes
An integrated circuit 2 is provided with a plurality of pipeline stages 10. These pipeline stages 10 have speculative processing control circuitry 12 which permits speculative processing in downstream pipeline stages and triggers a first error recovery operation (partial pipeline flushing) if such speculative processing is determined to be based upon an error. The pipeline stage 10 further includes speculative error detecting circuitry 14 which generates a prediction nc regarding whether or not the processing circuitry 18 will produce an error. This prediction is used to trigger a second error recovery operation (partial pipeline stall). This second error recovery operation has a lower performance penalty than the first error recovery operation.
