EARLY CONDITIONAL SELECTION OF AN OPERAND

摘要

Methods and apparatus are provided, including a method of pipeline operation, the method comprising detecting an instruction that specifies at least one operand to be selected from a group of at least two operands at least one of which may be in flight in the pipeline, determining an operand selection criterion as specified by the instruction, evaluating the operand selection criterion to select at least one operand from the group of at least two operands, and committing the instruction for execution once the at least one selected operand is available without waiting for a non-selected operand to become available.