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// DESCRIPTION: Verilator: Verilog Test module
//
// This file ONLY is placed under the Creative Commons Public Domain, for
// any use, without warranty, 2004 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0
module t (/*AUTOARG*/
// Inputs
clk
);
input clk;
integer cyc; initial cyc=1;
reg [125:0] a;
wire q;
sub sub (
.q (q),
.a (a),
.clk (clk));
always @ (posedge clk) begin
if (cyc!=0) begin
cyc <= cyc + 1;
if (cyc==1) begin
a <= 126'b1000;
end
if (cyc==2) begin
a <= 126'h1001;
end
if (cyc==3) begin
a <= 126'h1010;
end
if (cyc==4) begin
a <= 126'h1111;
if (q !== 1'b0) $stop;
end
if (cyc==5) begin
if (q !== 1'b1) $stop;
end
if (cyc==6) begin
if (q !== 1'b0) $stop;
end
if (cyc==7) begin
if (q !== 1'b0) $stop;
end
if (cyc==8) begin
if (q !== 1'b0) $stop;
$write("*-* All Finished *-*\n");
$finish;
end
end
end
endmodule
module sub (
input clk,
input [125:0] a,
output reg q
);
// verilator public_module
reg [125:0] g_r;
wire [127:0] g_extend = { g_r, 1'b1, 1'b0 };
reg [6:0] sel;
wire g_sel = g_extend[sel];
always @ (posedge clk) begin
g_r <= a;
sel <= a[6:0];
q <= g_sel;
end
endmodule
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