TECHNIQUE FOR TRANSLATING DEPENDENT INSTRUCTIONS

摘要

In response to determining an operation is a dependent operation, a mapper of a processor determines the source registers of the operation from which the dependent operation depends. The mapper translates the dependent operation to a new operation that uses as its source operands at least one of the determined source registers and a source register of the dependent operation. The new operation is independent of other pending operations and therefore can be executed without waiting for execution of other operations, thus reducing execution latency.

主权项

1. A method comprising:
decoding received instructions at an instruction pipeline into a plurality of operations including a first operation and a second operation; in response to determining the first operation of the plurality of operations is dependent on the second operation, translating the first operation to a third operation, the third operation independent of the second operation; and executing the third operation without waiting for execution of the second operation.