Constraint

SystemVerilog
1

please tell me Constraint for {1 2 2 3 3 3 4 4 4 4}

2

In reply to Vikas Misra:

class pattern;
  rand int array[10];
  
  constraint c_pattern {array[0] == 1;
                        array[1] == 2;
                        array[2] == 2;
                        array[3] == 3;
                        array[4] == 3;
                        array[5] == 3;
                        array[6] == 4;
                        array[7] == 4;
                        array[8] == 4;
                        array[9] == 4;
                       };
  
  function new();
  endfunction
endclass

module testbench();
  pattern p_;

  initial begin
    p_ = new();
    if (!p_.randomize()) $display("Failed to randomize p_");
    else $display("p_ array is %p", p_.array);
  end
endmodule

vsim -voptargs=+acc=npr

run -all

p_ array is '{1, 2, 2, 3, 3, 3, 4, 4, 4, 4}

exit

3

In reply to bhagya_k_s:

Works for me: Simple array constraint - EDA Playground