Constraint Randomization Interview Question

SystemVerilog
21

Correct! I was solving for a problem which had 10 consecutive ones. Thanks for correcting

22

I tried the above problem as follows:

class abc;
  rand bit[31:0] addr;
  rand bit[31:0] shift;
  constraint addr_c{
   shift inside {[1:16]};
   addr == 10'b1111_1111_11 << shift; 
  }
  
    function void post_randomize();
    addr = ~addr;
      $display("arr == %b shift =%0p", addr, shift);
    endfunction
  
  
endclass: abc
    
    
    module tb;
      abc abc_inst;
      
      initial begin 
        abc_inst = new();
        repeat(10)
        abc_inst.randomize();
      end
      
      
    endmodule