78 lines
2.4 KiB
Plaintext
78 lines
2.4 KiB
Plaintext
:ivl_version "12.0" "vec4-stack";
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:vpi_module "system";
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; Copyright (c) 2001-2015 Stephen Williams (steve@icarus.com)
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;
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; This program is free software; you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 2 of the License, or
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; (at your option) any later version.
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;
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; This program is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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;
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; You should have received a copy of the GNU General Public License along
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; with this program; if not, write to the Free Software Foundation, Inc.,
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; 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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; This example is similar to the following Verilog code. The idea is
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; to test the disable statement. The task creates a scope (called test)
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; that is a hook for the disable statement to get at the thread that
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; threatens to fail the test. If the disable statement works properly,
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; the test task will be disabled before the #5 delay expires.
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;
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; module main;
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; task test;
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; begin
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; #5 $display("FAILED...");
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; $finish;
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; end
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; endtask
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;
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; initial begin
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; fork
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; test;
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; #1 disable test;
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; join
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; $display("PASSED");
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; end
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; endmodule
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;
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S_main .scope module, "main" "main" 0 0;
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S_test .scope task, "test" "test" 0 0, 0 0 0, S_main;
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; This code in the implementation of the thread that goes into the
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; test scope. The idea is to disable this thread before it does its
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; job and prints a failure.
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.scope S_test;
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T_0/1 ;
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%delay 5, 0;
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%vpi_call 0 0 "$display", "FAILED -- thread wasn't disabled" {0 0 0};
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%vpi_call 0 0 "$finish" {0 0 0};
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%end;
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; This is the main thread. Fork the thread under test, delay for a
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; moment to let it run, then %disable the test thread. If I don't
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; disable the test thread in time, then the child will print an error
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; message and exit.
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.scope S_main;
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T_0 ;
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%fork T_0/1, S_test;
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%delay 1, 0;
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%disable S_test ; This is the statement that I'm testing.
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%join;
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%vpi_call 0 0 "$display", "PASSED" {0 0 0};
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%end;
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.thread T_0;
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:file_names 2;
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"N/A";
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"<interactive>";
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