forked from github/verilator
72 lines
2.0 KiB
Perl
Executable File
72 lines
2.0 KiB
Perl
Executable File
#!/usr/bin/env perl
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if (!$::Driver) { use FindBin; exec("$FindBin::Bin/bootstrap.pl", @ARGV, $0); die; }
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# DESCRIPTION: Verilator: Verilog Test driver/expect definition
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#
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# Copyright 2003 by Wilson Snyder. This program is free software; you
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# can redistribute it and/or modify it under the terms of either the GNU
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# Lesser General Public License Version 3 or the Perl Artistic License
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# Version 2.0.
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# SPDX-License-Identifier: LGPL-3.0-only OR Artistic-2.0
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use IO::File;
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scenarios(simulator => 1);
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# Look for O(n^2) problems in process handling
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sub gen {
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my $filename = shift;
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my $fh = IO::File->new(">$filename");
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$fh->print("// Generated by t_timing_long.pl\n");
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$fh->print("\n");
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$fh->print("`ifdef TEST_VERBOSE\n");
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$fh->print(" `define MSG(m) \$display m\n");
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$fh->print("`else\n");
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$fh->print(" `define MSG(m)\n");
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$fh->print("`endif\n");
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$fh->print("\n");
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$fh->print("module t;\n");
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$fh->print("\n");
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$fh->print(" int cnt;\n");
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$fh->print("\n");
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$fh->print(" initial begin\n");
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my $n = 100;
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for (my $i=1; $i<$n; ++$i) {
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# If statement around the timing is important to make the code scheduling
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# mostly unpredictable
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$fh->printf(" if (cnt == %d) begin\n", $i-1);
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$fh->printf(" #1; ++cnt; `MSG((\"[%0t] cnt?=${i}\", \$time));"
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." if (cnt != %d) \$stop;\n", $i);
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$fh->printf(" end\n");
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}
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$fh->print("\n");
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$fh->print(' $write("*-* All Finished *-*\n");',"\n");
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$fh->print(' $finish;',"\n");
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$fh->print(" end\n");
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$fh->print("endmodule\n");
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}
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top_filename("$Self->{obj_dir}/t_timing_long.v");
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gen($Self->{top_filename});
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compile(
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#verilator_flags2=>["--exe --build --main --timing"], # Unsupported
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verilator_flags2=>["--exe --build --main -Wno-STMTDLY"],
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verilator_make_cmake => 0,
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verilator_make_gmake => 0,
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make_main => 0,
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make_top => 1,
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);
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execute(
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check_finished => 1,
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);
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ok(1);
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1;
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