| /* |
| * 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 |
| */ |
| |
| `include "../nor/nor.sim.v" |
| |
| module XOR ( |
| input A, |
| input B, |
| output Y |
| ); |
| |
| wire S00; |
| NOR nor00 (.A(A), .B(B), .Y(S00)); |
| |
| wire S10; |
| wire S11; |
| NOR nor10 (.A(A), .B(S00), .Y(S10)); |
| NOR nor11 (.A(B), .B(S00), .Y(S11)); |
| |
| wire S20; |
| NOR nor20 (.A(S10), .B(S11), .Y(S20)); |
| |
| NOR nor30 (.A(S20), .B(S20), .Y(Y)); |
| |
| endmodule |