53 lines
1.3 KiB
Verilog
53 lines
1.3 KiB
Verilog
// Copyright (c) 2016 CERN
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// Maciej Suminski <maciej.suminski@cern.ch>
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//
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// This source code is free software; you can redistribute it
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// and/or modify it in source code form under the terms of the GNU
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// General Public License as published by the Free Software
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// Foundation; either version 2 of the License, or (at your option)
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// 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
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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// Unary minus operator test
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module vhdl_unary_minus_test;
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logic signed [7:0] data_in;
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logic signed [7:0] data_out;
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logic clk = 1'b0;
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vhdl_unary_minus dut(data_in, clk, data_out);
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always #10 clk = ~clk;
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initial begin
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#5;
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data_in = -12;
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#20;
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if(data_out !== 12) begin
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$display("FAILED 1");
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$finish();
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end
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data_in = 33;
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#20;
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if(data_out !== -33) begin
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$display("FAILED 2");
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$finish();
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end
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$display("PASSED");
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$finish();
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end
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endmodule
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