forked from github/verilator
59 lines
1.7 KiB
Perl
59 lines
1.7 KiB
Perl
|
#!/usr/bin/env perl
|
||
|
|
if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
|
||
|
|
# DESCRIPTION: Verilator: Verilog Test driver/expect definition
|
||
|
|
#
|
||
|
|
# Copyright 2023 by Wilson Snyder. This program is free software; you
|
||
|
|
# can redistribute it and/or modify it under the terms of either the GNU
|
||
|
|
# Lesser General Public License Version 3 or the Perl Artistic License
|
||
|
|
# Version 2.0.
|
||
|
|
# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
|
||
|
|
use IO::File;
|
||
|
|
|
||
|
|
scenarios(vlt => 1);
|
||
|
|
|
||
|
|
sub gen {
|
||
|
|
my $filename = shift;
|
||
|
|
my $n = shift;
|
||
|
|
|
||
|
|
my $fh = IO::File->new(">$filename");
|
||
|
|
$fh->print("// Generated by t_vthread.pl\n");
|
||
|
|
$fh->print("module genmod #(int val = 0)(clk, o);\n");
|
||
|
|
$fh->print(" input clk;\n");
|
||
|
|
$fh->print(" output int o;\n");
|
||
|
|
$fh->print(" always @ (posedge clk) begin\n");
|
||
|
|
$fh->print(" o <= val;\n");
|
||
|
|
$fh->print(" end\n");
|
||
|
|
$fh->print("endmodule\n");
|
||
|
|
$fh->print("module t (clk, o);\n");
|
||
|
|
$fh->print(" input clk;\n");
|
||
|
|
$fh->print(" output int o;\n");
|
||
|
|
for (my $i = 0; $i < ($n + 1); ++$i) {
|
||
|
|
$fh->print(" int r$i;\n");
|
||
|
|
$fh->print(" genmod #(.val($i)) rm$i (.clk(clk), .o(r$i));\n");
|
||
|
|
}
|
||
|
|
$fh->print(" always @ (posedge clk) begin\n");
|
||
|
|
$fh->print(" o <= r$n;\n");
|
||
|
|
$fh->print(' $write("*-* All Finished *-*\n");', "\n");
|
||
|
|
$fh->print(' $finish;', "\n");
|
||
|
|
$fh->print(" end\n");
|
||
|
|
$fh->print("endmodule\n");
|
||
|
|
}
|
||
|
|
|
||
|
|
top_filename("$Self->{obj_dir}/t_vthread.v");
|
||
|
|
|
||
|
|
gen($Self->{top_filename}, 6000);
|
||
|
|
|
||
|
|
compile(
|
||
|
|
# use --trace to generate trace files that can be parallelized
|
||
|
|
verilator_flags2=>["--stats --trace --verilate-jobs 2"],
|
||
|
|
);
|
||
|
|
|
||
|
|
execute(
|
||
|
|
check_finished => 1,
|
||
|
|
);
|
||
|
|
|
||
|
|
file_grep($Self->{stats}, qr/Verilate jobs: 2/);
|
||
|
|
|
||
|
|
ok(1);
|
||
|
|
1;
|