SYSTEM FOR PROVIDING TRACE DATA IN A DATA PROCESSOR HAVING A PIPELINED ARCHITECTURE

摘要

The invention is a method and system for providing trace data in a pipelined data processor. Aspects of the invention include providing a trace pipeline in parallel to the execution pipeline, providing trace information on whether conditional instructions complete or not, providing trace information on the interrupt status of the processor, replacing instructions in the processor with functionally equivalent instructions that also produce trace information and modifying the scheduling of instructions in the processor based on the occupancy of a trace output buffer.