verilator/test_regress/t/t_clk_gate_ext.v

32 lines
673 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
module t(/*AUTOARG*/
// Inputs
clk
);
input clk;
reg clk_en = 1'b0;
wire clk_gated = clk & clk_en;
wire [1:0] clks = {1'b0, clk_gated};
always @(posedge clks[0]) begin
$display("ERROR: clks[0] should not be active!");
$stop;
end
int cyc = 0;
always @(posedge clk) begin
cyc <= cyc + 1;
if (cyc == 99) begin
$write("*-* All Finished *-*\n");
$finish;
end
end
endmodule