mirror of https://github.com/YosysHQ/yosys.git
29 lines
495 B
Coq
29 lines
495 B
Coq
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module test (
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input EN, CLK,
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input [3:0] D,
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output reg [3:0] Q
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);
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always @(posedge CLK)
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if (EN) Q <= D;
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specify
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if (EN) (CLK *> (Q : D)) = (1, 2:3:4);
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$setup(D, posedge CLK &&& EN, 5);
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$hold(posedge CLK, D &&& EN, 6);
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endspecify
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endmodule
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module test2 (
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input A, B,
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output Q
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);
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xor (Q, A, B);
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specify
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//specparam T_rise = 1;
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//specparam T_fall = 2;
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`define T_rise 1
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`define T_fall 2
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(A => Q) = (`T_rise,`T_fall);
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endspecify
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endmodule
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