Timescale

SystemVerilog
,
1

This is a small program I found on the web for timescale

`timescale 1ns/100ps
module tscale();

   time a;

   initial
     begin
        a = 0;
        #1 a = 1ns;
        #1 a = 5ns;
        #1 a = 20;
        #5 a = 100;                
     end

   initial
     begin
        $monitor("%t a=%t",$time,a);        
     end
   
endmodule

This is the output I am getting

               0 a=                   0
              10 a=                  10
              20 a=                  50
              30 a=                 200
              80 a=                1000

I was expecting the %t to be printed as 0,1,2,3 and 8 since time unit is 1ns but not sure why I am getting 0,10,20,30 and 80
also when assigning a=1ns why does the simulator print the value as 10? can someone clarify? Thanks

2

In reply to raja7052:

See the $timeformat system function.

3

In reply to dave_59:

Thanks Dave