MANIPULATION OF TRACES FOR DEBUGGING A CIRCUIT DESIGN

摘要

A viewer shows circuit design activities, displaying a signal, its corresponding trace, and the values of the trace over time. A global zoom-in, zoom-out, and zoom-fit are provided over the value display to adjust the time interval covered within the viewer. Non-linear manipulation of the traces within the viewer enables simultaneous zoomed in display of multiple time intervals, and zoomed out display of other time intervals. The non-linear manipulations may be performed within a same display region by designating zoom groups corresponding to the selection of a designated time period of activities of the circuit. Each zoom group may be scaled independently of other timer periods to zoom in or out of activities occurring within the designated time period. A list of behaviors may also be provided. Selection of a behavior generates a separate signal list for signals associated with the behavior and corresponding traces for enhanced debugging.

主权项

1. A non-transitory computer-readable storage medium comprising computer program code for circuit design analysis, the computer program code comprising code for:
receiving signal traces for verification of a circuit design; generating a signal list display region and a trace display region, the trace display region including the signal traces, and the signal list display region including a list of signals corresponding to the signal traces, wherein a signal trace of the signal traces specifies values of a signal in the signal list for the circuit design at different time points; receiving a selection of a time interval of the signal traces in the trace display region; creating a zoom group based in part or in whole on to the time interval, the zoom group spanning portions of the signal traces corresponding to the time interval of the signal traces; and adjusting a scaling factor of the portions of the signal traces within the zoom group along a temporal dimension axis independently of other portions of the signal traces within the trace display region and are outside of the zoom group.