PROCESSOR WITH DEBUG PIPELINE

摘要

A processor includes an execution pipeline that includes a plurality of execution stages, execution pipeline control logic, and a debug system. The execution pipeline control logic is configured to control flow of an instruction through the execution stages. The debug system includes a debug pipeline and debug pipeline control logic. The debug pipeline includes a plurality of debug stages. Each debug pipeline stage corresponds to an execution pipeline stage, and the total number of debug stages corresponds to the total number of execution stages. The debug pipeline control logic is coupled to the execution pipeline control logic. The debug pipeline control logic is configured to control flow through the debug stages of debug information associated with the instruction, and to advance the debug information into a next of the debug stages in correspondence with the execution pipeline control logic advancing the instruction into a corresponding stage of the execution pipeline.

主权项

1. A processor, comprising:
an execution pipeline comprising a plurality of execution stages; execution pipeline control logic configured to control flow of an instruction through the execution stages; and a debug system, comprising:
a debug pipeline comprising a plurality of debug stages, wherein each of the debug pipeline stages corresponds to one of the execution pipeline stages, and a total number of the debug stages corresponds to a total number of the execution stages;debug pipeline control logic coupled to the execution pipeline control logic, the debug pipeline control logic configured to:
control flow through the debug stages of debug information associated with the instruction;advance the debug information into a next of the debug stages in correspondence with the execution pipeline control logic advancing the instruction into a corresponding stage of the execution pipeline.