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[/] [sha3/] [trunk/] [low_throughput_core/] [rtl/] [rconst.v] - Rev 6
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/* * Copyright 2013, Homer Hsing <homer.hsing@gmail.com> * * 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. */ /* round constant */ module rconst(i, rc); input [23:0] i; output reg [63:0] rc; always @ (i) begin rc = 0; rc[0] = i[0] | i[4] | i[5] | i[6] | i[7] | i[10] | i[12] | i[13] | i[14] | i[15] | i[20] | i[22]; rc[1] = i[1] | i[2] | i[4] | i[8] | i[11] | i[12] | i[13] | i[15] | i[16] | i[18] | i[19]; rc[3] = i[2] | i[4] | i[7] | i[8] | i[9] | i[10] | i[11] | i[12] | i[13] | i[14] | i[18] | i[19] | i[23]; rc[7] = i[1] | i[2] | i[4] | i[6] | i[8] | i[9] | i[12] | i[13] | i[14] | i[17] | i[20] | i[21]; rc[15] = i[1] | i[2] | i[3] | i[4] | i[6] | i[7] | i[10] | i[12] | i[14] | i[15] | i[16] | i[18] | i[20] | i[21] | i[23]; rc[31] = i[3] | i[5] | i[6] | i[10] | i[11] | i[12] | i[19] | i[20] | i[22] | i[23]; rc[63] = i[2] | i[3] | i[6] | i[7] | i[13] | i[14] | i[15] | i[16] | i[17] | i[19] | i[20] | i[21] | i[23]; end endmodule