Detecting x state transitions by monitoring a subset of signals determined based on a device state

An apparatus for identifying a transition of a signal from a defined state to an undefined state when simulating a device, the apparatus comprising a computer processor, a computer memory operatively coupled to the computer processor, the computer memory having disposed within it computer program instructions that, when executed by the computer processor, cause the apparatus to carry out steps of:

• storing a set of breakpoints, each breakpoint associated with a state of the device and identifying a set of signals from the device;
• executing a simulation of the device using simulation data;
• determining a current state of the device from values of one or more storage elements of the device;
• selecting a breakpoint list including one or more breakpoints based on the current state of the device;
• and
• monitoring the set of signals from the device identified by the one or more breakpoints included in the breakpoint list.

A computer program product for identifying a transition of a signal from a defined state to an undefined state when simulating a device, the computer program product disposed upon a computer readable medium, the computer program product comprising computer program instructions that, when executed, cause a computer to carry out steps of:

• storing a set of breakpoints, each breakpoint associated with a state of the device and identifying a set of signals from the device;
• executing a simulation of the device using simulation data;
• determining a current state of the device from values of one or more storage elements of the device;
• selecting a breakpoint list including one or more breakpoints based on the current state of the device;
• and
• monitoring the set of signals from the device identified by the one or more breakpoints included in the breakpoint list.