verilator/test_regress/t/t_display_concat.v

31 lines
638 B
Systemverilog

// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain.
// SPDX-FileCopyrightText: 2021 Wilson Snyder
// SPDX-License-Identifier: CC0-1.0
module t (
input clk
);
int cyc = 0;
always @(posedge clk)++cyc;
reg [15 : 0] t2;
always @(posedge clk) begin
if (cyc == 0) begin
t2 <= 16'd0;
end
else if (cyc == 2) begin
t2 <= 16'habcd;
end
else if (cyc == 4) begin
$display("abcd=%x", t2);
$display("ab0d=%x", {t2[15:8], 4'd0, t2[3:0]});
$write("*-* All Finished *-*\n");
$finish(32'd0);
end
end
endmodule