Towards Denotational Semantics for Verilog in PVS

Verilog is a hardware description language that has been widely used in industry. We have explored its denotational semantics, operational semantics and algebraic semantics. In order to support the mechanical proof for the properties of Verilog programs, this paper studies the mechanical approach to the denotational semantics. We apply PVS in this exploration. Based on this achievement, algebraic laws for Verilog programs can be verified in the PVS framework.