Code Coverage

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Chapter contents

Enabling Code Coverage

The coverage_source window

Excluding lines and files

The coverage_summary window

Summary information

Misses tab

Exclusions tab

The coverage_summary window menu bar

Merging coverage report files

Exclusion filter files

Syntax

Arguments

Example

Default filter file

Code Coverage preference variables

Code Coverage commands

Code Coverage gives you graphical and report file feedback on which executable lines in your source code are actually being executed. This integrated feature provides three important benefits to the ModelSim user:

1. Because it's integrated into the ModelSim engine, it is totally non-intrusive - it doesn't require instrumented HDL code as do third-party code coverage products.
2. It has very little impact on simulation performance (typically less than 5%).
3. There is no need to recompile to obtain code coverage statistics. ModelSim version 5.3 and later libraries fully support this feature.

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