$display("input_data: %x,
              output_data: %x,
              result: %x",
              input_data,
              output_data,
              result);

module tb;

initial begin
    integer input_data  = 1;
    integer output_data = 0;
    integer result      = 55;
    $display("input_data: %x "  , input_data,
             "output_data: %x " , output_data,
             "result: %x "      , result);
end

endmodule

/*

Outputs:

input_data: 00000001 output_data: 00000000 result: 00000037

*/

string  a;
a = "This is multi line comment
     and this is second line";

/*

Outputs:

a = This is multi line comment^M
        and this is second line

*/

string tmg ={" n"                                               ,
    "//periodic signal intf.KEYCONTROL_CLK n"         ,
    "forkn"                                           ,
    "   beginn"                                       ,
    "     the_clock = 0;n"                            ,
    "     forever beginn"                             ,
    "       if(the_clock == 0)n"                      ,
    "          #(5000000/2 * 1ps);n"                  ,
    "       elsen"                                    ,
    "          #((5000000-5000000/2) * 1ps);n"        ,
    "       the_clock=~the_clock;n"                   ,
    "     endn"                                       ,
    "   endn"                                         ,
    "join_nonen"};

    `uvm_info("record_key_control_map_and_record", $sformatf("Start recording of interface if_record_key_control"), UVM_DEBUG);
    $fdisplay ( mcd0,tmg);