US Patent 7831862 Selective timer control during single-step instruction execution

A processing device includes a timer and a processor core configured to execute an instruction during a debug session. The processing device further includes a timer control module configured to selectively enable/disable the timer based on a characteristic of the instruction. Another processing device includes a timer, a processor core configured to single step execute a sequence of instructions during a debug session, and a timer control module configured to selectively enable/disable the timer during single step execution of each instruction of the sequence of instructions.