82 lines
1.9 KiB
Coq
82 lines
1.9 KiB
Coq
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// Copyr (c) 2015-2016 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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// Test for shift operators (logical and arithmetic)
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module shifter_test;
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reg signed [7:0] inp, out_srl, out_sll, out_sra, out_sla, out_shl_u, out_shr_u, out_shl_s, out_shr_s;
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shifter dut(inp, out_srl, out_sll, out_sra, out_sla, out_shl_u, out_shr_u, out_shl_s, out_shr_s);
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initial begin
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inp = 8'b11101100;
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#1; // wait for signal assignments
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if(out_srl !== 8'b01110110)
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begin
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$display("FAILED 1");
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$finish();
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end
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if(out_sll !== 8'b11011000)
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begin
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$display("FAILED 2");
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$finish();
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end
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if(out_sra !== 8'b11110110)
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begin
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$display("FAILED 3");
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$finish();
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end
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if(out_sla !== 8'b11011000)
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begin
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$display("FAILED 4");
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$finish();
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end
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if(out_shl_u !== 8'b10110000)
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begin
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$display("FAILED 5");
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$finish();
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end
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if(out_shr_u !== 8'b00111011)
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begin
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$display("FAILED 6");
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$finish();
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end
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if(out_shl_s !== 8'b10110000)
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begin
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$display("FAILED 7");
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$finish();
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end
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if(out_shr_s !== 8'b11111011)
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begin
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$display("FAILED 8");
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$finish();
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end
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$display("PASSED");
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end
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endmodule
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