Electronic Design Automation

9.3.3. Structural coverage metrics

Structural coverage measure is also referred to as code coverage metric, because the objective is to evaluate whether various kinds of elements in the HDL implementation are exercised by a given test set. Because code coverage metric ties with test vectors and physical representation in the hardware description language, simulation engines can be easily modified to provide the coverage information. Code coverage comes in many forms. The following describes a few among the commonly used metrics.

9.3.3.1. Line coverage (a.k.a. statement coverage)

This metric takes the syntactical HDL implementation and counts the number of lines exercised during the simulation run. The line coverage is defined as:Consider ...