// © IBM Corp. 2020 // Licensed under the Apache License, Version 2.0 (the "License"), as modified by // the terms below; you may not use the files in this repository except in // compliance with the License as modified. // You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 // // Modified Terms: // // 1) For the purpose of the patent license granted to you in Section 3 of the // License, the "Work" hereby includes implementations of the work of authorship // in physical form. // // 2) Notwithstanding any terms to the contrary in the License, any licenses // necessary for implementation of the Work that are available from OpenPOWER // via the Power ISA End User License Agreement (EULA) are explicitly excluded // hereunder, and may be obtained from OpenPOWER under the terms and conditions // of the EULA. // // Unless required by applicable law or agreed to in writing, the reference design // 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. // // Additional rights, including the ability to physically implement a softcore that // is compliant with the required sections of the Power ISA Specification, are // available at no cost under the terms of the OpenPOWER Power ISA EULA, which can be // obtained (along with the Power ISA) here: https://openpowerfoundation.org. `timescale 1 ns / 1 ns // Description: Prioritizer // //***************************************************************************** module tri_agecmp( a, b, a_newer_b ); parameter SIZE = 8; input [0:SIZE-1] a; input [0:SIZE-1] b; output a_newer_b; // tri_agecmp wire a_lt_b; wire a_gte_b; wire cmp_sel; assign a_lt_b = (a[1:SIZE - 1] < b[1:SIZE - 1]) ? 1'b1 : 1'b0; assign a_gte_b = (~a_lt_b); assign cmp_sel = a[0] ~^ b[0]; assign a_newer_b = (a_lt_b & (~cmp_sel)) | (a_gte_b & cmp_sel); endmodule