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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, 2003-2007 by Wilson Snyder.
// SPDX-License-Identifier: CC0-1.0
`define STRINGIFY(x) `"x`"
module t (/*AUTOARG*/
// Inputs
clk
);
input clk;
integer cyc = 0;
wire out;
reg in;
Genit g (.clk(clk), .value(in), .result(out));
always @ (posedge clk) begin
//$write("[%0t] cyc==%0d %x %x\n", $time, cyc, in, out);
cyc <= cyc + 1;
if (cyc==0) begin
// Setup
in <= 1'b1;
end
else if (cyc==1) begin
in <= 1'b0;
end
else if (cyc==2) begin
if (out != 1'b1) $stop;
end
else if (cyc==3) begin
if (out != 1'b0) $stop;
end
else if (cyc==9) begin
$write("*-* All Finished *-*\n");
$finish;
end
end
endmodule
module Generate (clk, value, result);
input clk;
input value;
output result;
reg Internal;
assign result = Internal;
always @(posedge clk)
Internal <= value;
endmodule
module Checker (clk, value);
input clk, value;
always @(posedge clk) begin
$write ("[%0t] value=%h\n", $time, value);
end
endmodule
module Test (clk, value, result);
input clk;
input value;
output result;
Generate gen (clk, value, result);
Checker chk (clk, gen.Internal);
endmodule
module Genit (clk, value, result);
input clk;
input value;
output result;
`ifndef ATSIM // else unsupported
`ifndef NC // else unsupported
`ifndef IVERILOG // else unsupported
`define WITH_FOR_GENVAR
`endif
`endif
`endif
`define WITH_GENERATE
`ifdef WITH_GENERATE
`ifndef WITH_FOR_GENVAR
genvar i;
`endif
generate
for (
`ifdef WITH_FOR_GENVAR
genvar
`endif
i = 0; i < 1; i = i + 1)
begin : foo
Test tt (clk, value, result);
end
endgenerate
`else
Test tt (clk, value, result);
`endif
wire Result2 = t.g.foo[0].tt.gen.Internal; // Works - Do not change!
always @ (posedge clk) begin
$write("[%0t] Result2 = %x\n", $time, Result2);
end
endmodule
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