ql-qlf-plugin/tests/full_adder/full_adder.v

// Copyright 2020-2022 F4PGA Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// SPDX-License-Identifier: Apache-2.0

module full_adder (
    input  wire [`WIDTH-1:0] A,
    input  wire [`WIDTH-1:0] B,
    output wire [`WIDTH  :0] S,
);

    // Implicit adder
    assign S = A + B;

endmodule

module subtractor (
    input  wire [`WIDTH-1:0] A,
    input  wire [`WIDTH-1:0] B,
    output wire [`WIDTH  :0] S,
);

    // Implicit subtractor
    assign S = A - B;

endmodule

module comparator (
    input  wire [`WIDTH-1:0] A,
    input  wire [`WIDTH-1:0] B,
    output wire CO,
);
    assign CO = (A <= B) ? 1'b1 : 1'b0;

endmodule