Explanation
Direct Programming Interface (DPI) allows direct inter language function calls between the SystemVerilog and Foreign language. The functions implemented in Foreign language can be called from SystemVerilog and such functions are called Import functions similarly functions implemented in SystemVerilog can be called from Foreign language (C/C++ or System C) such functions are called Export functions. DPIs allow transfer of data between two domains through function arguments and return.
Read more about this topic: System Verilog DPI
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