Question

vpi_control(<coverageControl>, <coverageType>, instance_handle)
vpi_control(<coverageControl>, <coverageType>, assertion_handle)

Controls the collection of coverage on the given instance or assertion. Note that statement, toggle and FSM coverage are not individually controllable (i.e., they are controllable only at the instance level and not on a per statement/signal/FSM basis). The semantics and behavior are as per the $coverage_control system function (see Section 29.2.2.1). coverageControl is one vpiCoverageStart, vpiCoverageStop, vpiCoverageReset or vpiCoverageCheck, as defined in Section 29.4.2. coverageType is any one of the VPI coverage type properties (Section 29.4.2)

vpi_control(<coverageControl>, <coverageType>, name)

This saves or merges coverage into the current simulation. The semantics and behavior are specified as per the equivalent system functions $coverage_merge (see Section 29.2.2.4) and $coverage_save (see Section 29.2.2.5). coverageControl is one of vpiCoverageMerge or vpiCoverageSave, defined in Section 29.4.2.