What is Value change dump (VCD)?

A standard file format recording signal value changes during simulation, viewed in waveform tools for debugging.

Field: HDL & Verification

Value change dump (VCD) in the explanations

Questions that mention Value change dump (VCD) (1)

  1. What is the main purpose of dumping simulation results to a file in a format such as VCD?

Related terms

Asynchronous reset Blocking assignment Combinational loop Constrained random verification Four-state logic Gate-level simulation Generate statement Hardware description language (HDL) Lint tool Mealy machine

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