Blocking statement question

SystemVerilog
1

Hi All,

for fork join_none,the spawned processes do not start executing until the parent thread executes a blocking statement or terminates. what is blocking statement ?

Thank you!!

2

LRM_Blocking_Statement
LRM_Blocking_Statement1119×219 42.4 KB

initial begin
   fork
    begin
      $display("Within 1st thread");
    end

    begin
      $display("Within 2nd thread");
    end
   join_none
   $display("1st display after join_none");
   $display("2nd display after join_none");
   #0;
   $display("3rd display after join_none");
end

The 2 $displays after fork join_none are part of parent thread and execute first in source order.

Due to blocking statement #0 the parent thread blocks and as a result the 2 $displays within fork join_none execute ( in any order )