// Copyright (C) 2020-2021  The SymbiFlow Authors.
//
// Use of this source code is governed by a ISC-style
// license that can be found in the LICENSE file or at
// https://opensource.org/licenses/ISC
//
// SPDX-License-Identifier:ISC


module inv (
    output Q,
    input  A
);
  assign Q = A ? 0 : 1;
endmodule

module buff (
    output Q,
    input  A
);
  assign Q = A;
endmodule

module logic_0 (
    output a
);
  assign a = 0;
endmodule

module logic_1 (
    output a
);
  assign a = 1;
endmodule

(* blackbox *)
module gclkbuff (
    input  A,
    output Z
);

  assign Z = A;

endmodule