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SystemVerilog Regions

Overview

SystemVerilog's concept of "Scheduling Regions" is a crucial element influencing the execution flow of hardware designs. These regions determine the order of process and statement execution, impacting simulation behavior and final hardware implementation. Understanding scheduling regions empowers hardware engineers to optimize designs for performance, avoid pitfalls, and seamlessly integrate with various tools and verification methods. By grasping the fundamental aspects of SV Regions, designers can create efficient and robust HDL/HVL codes. Given below is a basic flow of the execution using the SV scheduling regions.

To better understand how regions work, you can review the verilog regions page using the following link.

Verilog Regions

Following is a diagram about the SystemVerilog regions for better pictorial understanding.

In SystemVerilog, along with Verilog regions, additional "Program Block" execution regions must also be considered. Any code which you wish to run in "Re-Regions" of SV, must be coded inside the program block. More can be found about this block in the next section.

Theory Questions

Locked Solution

module top;
    initial
    begin
        $display( "A" );    
    end
endmodule

program pp;
    initial
    begin
        $display( "B" );    
    end
endprogram

Locked Solution

module top;
    initial
    begin
        $display( "A" );    
    end
endmodule

program pp;
    initial
    begin
        #0;
        $display( "B" );    
    end
endprogram

Locked Solution

Coding Questions

Locked Solution