| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: mcu_crcscf_ctl.v |
| 4 | // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved |
| 5 | // 4150 Network Circle, Santa Clara, California 95054, U.S.A. |
| 6 | // |
| 7 | // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 8 | // |
| 9 | // This program is free software; you can redistribute it and/or modify |
| 10 | // it under the terms of the GNU General Public License as published by |
| 11 | // the Free Software Foundation; version 2 of the License. |
| 12 | // |
| 13 | // This program is distributed in the hope that it will be useful, |
| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | // GNU General Public License for more details. |
| 17 | // |
| 18 | // You should have received a copy of the GNU General Public License |
| 19 | // along with this program; if not, write to the Free Software |
| 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | // |
| 22 | // For the avoidance of doubt, and except that if any non-GPL license |
| 23 | // choice is available it will apply instead, Sun elects to use only |
| 24 | // the General Public License version 2 (GPLv2) at this time for any |
| 25 | // software where a choice of GPL license versions is made |
| 26 | // available with the language indicating that GPLv2 or any later version |
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| 28 | // otherwise unspecified. |
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| 31 | // CA 95054 USA or visit www.sun.com if you need additional information or |
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| 33 | // |
| 34 | // ========== Copyright Header End ============================================ |
| 35 | module mcu_crcscf_ctl ( |
| 36 | in, |
| 37 | crc); |
| 38 | |
| 39 | input [25:0] in; |
| 40 | output [9:0] crc; |
| 41 | |
| 42 | assign crc[0] = in[25] ^ in[22] ^ in[21] ^ in[19] ^ in[17] ^ in[16] ^ in[14] ^ |
| 43 | in[13] ^ in[10] ^ in[8] ^ in[2] ^ in[1] ^ in[0]; |
| 44 | assign crc[1] = in[25] ^ in[23] ^ in[21] ^ in[20] ^ in[19] ^ in[18] ^ in[16] ^ |
| 45 | in[15] ^ in[13] ^ in[11] ^ in[10] ^ in[9] ^ in[8] ^ in[3] ^ in[0]; |
| 46 | assign crc[2] = in[25] ^ in[24] ^ in[20] ^ in[13] ^ in[12] ^ in[11] ^ in[9] ^ |
| 47 | in[8] ^ in[4] ^ in[2] ^ in[0]; |
| 48 | assign crc[3] = in[22] ^ in[19] ^ in[17] ^ in[16] ^ in[12] ^ in[9] ^ in[8] ^ |
| 49 | in[5] ^ in[3] ^ in[2] ^ in[0]; |
| 50 | assign crc[4] = in[25] ^ in[23] ^ in[22] ^ in[21] ^ in[20] ^ in[19] ^ in[18] ^ |
| 51 | in[16] ^ in[14] ^ in[9] ^ in[8] ^ in[6] ^ in[4] ^ in[3] ^ |
| 52 | in[2] ^ in[0]; |
| 53 | assign crc[5] = in[24] ^ in[23] ^ in[22] ^ in[21] ^ in[20] ^ in[19] ^ in[17] ^ |
| 54 | in[15] ^ in[10] ^ in[9] ^ in[7] ^ in[5] ^ in[4] ^ in[3] ^ in[1]; |
| 55 | assign crc[6] = in[24] ^ in[23] ^ in[20] ^ in[19] ^ in[18] ^ in[17] ^ in[14] ^ |
| 56 | in[13] ^ in[11] ^ in[6] ^ in[5] ^ in[4] ^ in[1] ^ in[0]; |
| 57 | assign crc[7] = in[24] ^ in[22] ^ in[20] ^ in[18] ^ in[17] ^ in[16] ^ in[15] ^ |
| 58 | in[13] ^ in[12] ^ in[10] ^ in[8] ^ in[7] ^ in[6] ^ in[5] ^ in[0]; |
| 59 | assign crc[8] = in[25] ^ in[23] ^ in[21] ^ in[19] ^ in[18] ^ in[17] ^ in[16] ^ |
| 60 | in[14] ^ in[13] ^ in[11] ^ in[9] ^ in[8] ^ in[7] ^ in[6] ^ in[1]; |
| 61 | assign crc[9] = in[25] ^ in[24] ^ in[21] ^ in[20] ^ in[18] ^ in[16] ^ in[15] ^ |
| 62 | in[13] ^ in[12] ^ in[9] ^ in[7] ^ in[1] ^ in[0]; |
| 63 | |
| 64 | endmodule |
| 65 | |