Execution history tracing method

摘要

An execution history tracing method includes tracing an execution history of a CPU upon executing, in a semiconductor device including the CPU, a program by using the CPU, for one or a tracing target, from outside the semiconductor device via software. The execution history tracing method includes recording, in a buffer, target information as trace information about an execution of the one or the tracing target, for each instruction cycle in which the target information is produced as the execution history; and performing data sorting by using the software to group the trace information about the execution of the one or the tracing target, the trace information being recorded for the each instruction execution cycle, for each of the one or the tracing target.

主权项

1. A method, comprising:
recording trace information about a tracing target during a first instruction execution cycle in a buffer; grouping the recorded trace information with additional trace information recorded during a second instruction execution cycle, wherein the additional trace information corresponds to the tracing target; and generating a single instruction notation for the first and second execution cycles based on the grouped recorded trace information and the additional trace information.