A hardware verification language, or HVL, is a programming language used to verify the designs of electronic circuits written in a hardware description language. HVLs typically include features of a high-level programming language like C++ or Java as well as features for easy bit-level manipulation similar to those found in HDLs. Many HVLs will provide constrained random stimulus generation, and functional coverage constructs to assist with complex hardware verification. [SystemVerilog](https://blipt[e](https://bliptext.com/articles/e-verification-language)xt.com/articl[e](https://bliptext.com/articles/e-verification-language)s/syst[e](https://bliptext.com/articles/e-verification-language)mv[e](https://bliptext.com/articles/e-verification-language)rilog), OpenVera, e, and SystemC are the most commonly used HVLs. SystemVerilog attempts to combine HDL and HVL constructs into a single standard.