3 Workflow Comparison

Both ModelSim and QuestaSim use the same basic two-step flow. Microchip recommends the two-step flow for migration, as it aligns with Libero's existing workflow. The only required change is adding -voptargs to the vsim command, which forwards optimization arguments to the internal vopt step. The three-step flow provides finer control over the optimization process and is preferred for advanced use cases.

The following table describes the simulation-phase command comparison.