The present invention solves the problems associated with the prior art by
decoupling the issuing of instructions from their dispatch into their
respective pipeline. This permits the determination of whether a
particular instruction can safely be issued from an instruction queue to
the next stage of the pipeline by providing such information at a point
early in the machine cycle. In a multistage pipeline, a first stage is
bypassed to provide instructions to a second stage regardless of the
ability of the first stage to store the instruction from the instruction
issuing unit.