Constrain a 2D matrix in diamond fashion

SystemVerilog
,
4

In reply to Juhi_Patel:

I liked your solution , how about this alternative ?

class C;
  rand bit data[8][8];

  constraint c_d {
    foreach(data[i,j]) {
      if (((i<=4) && ((j>2-i) && (j<i+5))) ||
         ((i==5) && ((j<i+2) && (j>i-5))) ||
         ((i==6) && ((j<i) && (j>i-5))) ||
         ((i==7) && ((j<i-2) && (j>i-5))) ) {
        data[i][j] == 1;
          } else {
        data[i][j] == 0;
      }
    }
  }
endclass : C

module top();
  C c;
  initial begin
    c = new();
    repeat(1) begin
      if(!c.randomize()) $error("RAND FAILED --- !!!");
      for(int i=0;i<8;i++)begin
        for(int j=0;j<8;j++)begin
          $write ("%0b\t",c.data[i][j]);
        end
        $display();
      end
    end
  end
 
endmodule : top

I should have spent more time to sort the lower half of diamond, for more generic solution instead of directed i values, but leaving on others to sort it out :)

Thank you,
Mega