SHARING PROCESSING RESULTS BETWEEN DIFFERENT PROCESSING LANES OF A DATA PROCESSING APPARATUS

摘要

A data processing apparatus has control circuitry for detecting whether a first micro-operation to be processed by a first processing lane would give the same result as a second micro-operation processed by a second processing lane. if they would give the same result, then the first micro-operation is prevented from being processed by the first processing lane and the result of the second micro-operation is output as the result of the first micro-operation. This avoids duplication of processing, to save energy for example.

主权项

1. A data processing apparatus comprising:
first and second processing lanes configured to perform data processing operations in parallel in response to micro-operations; and control circuitry configured to detect whether a first micro-operation to be processed by the first processing lane would give the same result as a second micro-operation processed by the second processing lane; wherein if the control circuitry detects that the first micro-operation would give the same result as the second micro-operation, then the control circuitry is configured to prevent the first micro-operation being processed by the first processing lane and to control the first processing lane to output the result of the second micro-operation as the result of the first micro-operation.