SystemVerilog DPIとは 意味・読み方・使い方

SystemVerilog DPI (Direct Programming Interface) is an interface which can be used to interface SystemVerilog with foreign languages. These Foreign languages can be a C, C++, System C as well as others. DPI's consists of two layers: A SystemVerilog Layer and a Foreign language layer. Both the layers are isolated from each other. Which programming language is actually used as the foreign language is transparent and irrelevant for the System-Verilog side of this interface. Neither the SystemVerilog compiler nor the foreign language compiler is required to analyze the source code in the other’s language. Different programming languages can be used and supported with the same intact SystemVerilog layer. For now, however, SystemVerilog defines a foreign language layer only for the C programming language.