Floating point exception handling in pipelined processor using special instruction to detect generated exception and execute instructions singly from known correct state

摘要

A process which automatically inserts commands that test for raised exceptions indicating floating point status exceptions into a sequence of instructions to be executed, and responds to exceptions in execution of the sequence of instructions by returning execution to a point in the sequence of instructions at which correct state is known and then executing each instructions in the sequence singly to completion so that exceptions in pipelined floating point instructions can be automatically detected.