37 lines
506 B
Coq
37 lines
506 B
Coq
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module test();
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reg clk;
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reg [1:0] state;
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always begin
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case (state)
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0 : state = 1;
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1 : state = 2;
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default : /* do nothing */ ;
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endcase
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@(posedge clk);
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end
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reg failed = 0;
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initial begin
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clk = 0;
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state = 0;
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#1 clk = 1;
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#1 clk = 0;
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if (state !== 1) failed = 1;
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#1 clk = 1;
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#1 clk = 0;
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if (state !== 2) failed = 1;
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#1 clk = 1;
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#1 clk = 0;
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if (state !== 2) failed = 1;
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if (failed)
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$display("FAILED");
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else
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$display("PASSED");
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end
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endmodule
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