27 lines
504 B
Coq
27 lines
504 B
Coq
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// pr1489568
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module bug();
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reg [15 : 0] in;
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reg sel;
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wire [31 : 0] result = { 16'd0, sel ? -in : in };
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initial begin
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in = 2;
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sel = 0;
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#1 if (result !== 32'h0000_0002) begin
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$display("FAILED -- sel=%b, in=%h, result=%h", sel, in, result);
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$finish;
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end
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sel = 1;
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#1 if (result !== 32'h0000_fffe) begin
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$display("FAILED -- sel=%b, in=%h, result=%h", sel, in, result);
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$finish;
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end
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$display("PASSED");
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end // initial begin
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endmodule
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