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  • Randomization of an array

Randomization of an array

SystemVerilog 4972
constraint randomization 29
sk9
sk9
Forum Access
27 posts
February 15, 2017 at 6:42 pm

Hi,

Can anyone please help me write the code for the following question:
There is an array of i elements. Write a constraint to put random even numbers (choose any even number from 1 to 100) in the odd ith element of the array and random odd numbers (choose any odd number from 1 to 100) in the even ith element of the array.

Thanks,
Sruthi.

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Solution

Solution

naveen4860
naveen4860
Full Access
2 posts
February 15, 2017 at 8:50 pm

In reply to sruthikrapa:

module test;                                                                                                                                     
  class A;
  rand int a[] ;
  constraint C1 {a.size() == 50;}
  constraint C2 { foreach(a[i])
                  {   
                    if(i%2 == 0)
                      a[i]%2 != 0;
                    else
                      a[i]%2 == 0;
                    a[i] inside {[1:100]};
                  }   
                }   
  endclass
    A a_h;
  initial begin 
     a_h = new();
      begin
      assert(a_h.randomize());
      foreach(a_h.a[i])
      $display(" a [%0d] = %0d",i,a_h.a[i]);
      end 
  end 
endmodule

I think this will work

Thanks,
Naveen

sk9
sk9
Forum Access
27 posts
February 15, 2017 at 9:36 pm

In reply to naveen4860:
Hi Naveen,

It worked. Thank you very much.

Regards,
Sruthi.

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