mirror of
https://github.com/verilator/verilator.git
synced 2025-01-05 22:27:35 +00:00
34 lines
991 B
Systemverilog
34 lines
991 B
Systemverilog
// DESCRIPTION: Verilator: Verilog Test module
|
|
//
|
|
// This file ONLY is placed under The Creative Commons Public Domain, for
|
|
// any use, without warranty, 2020 by Wilson Snyder.
|
|
// SPDX-License-Identifier: CC0-1.0
|
|
|
|
`define stop $stop
|
|
`define checkd(gotv,expv) do if ((gotv) !== (expv)) begin $write("%%Error: %s:%0d: got=%0d exp=%0d\n", `__FILE__,`__LINE__, (gotv), (expv)); `stop; end while(0);
|
|
|
|
`timescale 1ns/1ps
|
|
|
|
module t;
|
|
time t;
|
|
|
|
// realtime value scaled to timeunit, rounded to timeprecision
|
|
initial begin
|
|
// verilator lint_off REALCVT
|
|
t = 1s; `checkd(t, 64'd1000000000);
|
|
t = 2ms; `checkd(t, 2000000);
|
|
t = 1ms; `checkd(t, 1000000);
|
|
t = 1us; `checkd(t, 1000);
|
|
t = 1ns; `checkd(t, 1);
|
|
t = 1ps; `checkd(t, 0); // Below precision
|
|
t = 1fs; `checkd(t, 0);
|
|
|
|
t = 2.3ps; `checkd(t, 0);
|
|
t = 2.4us; `checkd(t, 2400);
|
|
// verilator lint_on REALCVT
|
|
|
|
$write("*-* All Finished *-*\n");
|
|
$finish;
|
|
end
|
|
endmodule
|