Technical

Could you detail the process of writing constraints in SystemVerilog?

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Anonymous

3.3Strong
  • To control the values that are getting assigned to the random variable on randomization we need      to define constraints.
  • Constraint provides  control on randomization.
class packet;
rand bit [3:0] addr;
constraint addr_range { addr > 5; }
endclass
module constr_blocks;
initial begin
packet pkt;
pkt = new();
repeat(10) begin
pkt.randomize();
$display("\taddr = %0d",pkt.addr);
end
end
endmodule
  • What is your process for creating constraints in SystemVerilog?
  • How would you go about writing constraints in SystemVerilog?
  • How do you write constraints in SystemVerilog?
  • Could you detail the process of writing constraints in SystemVerilog?
  • What's your approach to constraint writing in SystemVerilog?
  • Can you explain the steps for defining constraints in SystemVerilog?
  • In your experience, how do you effectively write constraints in SystemVerilog?
  • What methods do you use to write constraints in SystemVerilog?
  • How do you usually formulate constraints in SystemVerilog?
  • What’s your strategy for crafting constraints in SystemVerilog?
  • Can you demonstrate how to write constraints in SystemVerilog?
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Interview question asked to Design Verification Engineers interviewing at HP, IBM, Qualcomm and others: Could you detail the process of writing constraints in SystemVerilog?.