|  | #!/bin/sh | 
|  | # SPDX-FileCopyrightText: 2020 Efabless Corporation | 
|  | # | 
|  | # 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 | 
|  |  | 
|  |  | 
|  | : ${1?"Usage: $0 file1.gds file2.gds <top_level_module_name>"} | 
|  | : ${2?"Usage: $0 file1.gds file2.gds <top_level_module_name>"} | 
|  | : ${3?"Usage: $0 file1.gds file2.gds <top_level_module_name>"} | 
|  |  | 
|  | klayout -r $(dirname $0)/xor.drc -rd top_cell=$3 -rd a=$1 -rd b=$2 -rd thr=$(nproc) -rd ol=xor.gds -zz |