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1 | // ========== Copyright Header Begin ========================================== |
2 | // | |
3 | // OpenSPARC T2 Processor File: niu_65data_ecc_generate_w_err_injection.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 | |
27 | // may be used, or where a choice of which version of the GPL is applied is | |
28 | // otherwise unspecified. | |
29 | // | |
30 | // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
31 | // CA 95054 USA or visit www.sun.com if you need additional information or | |
32 | // have any questions. | |
33 | // | |
34 | // ========== Copyright Header End ============================================ | |
35 | // **************************************************************************** | |
36 | // Copyright (c) 2002 by Sun Microsystems Inc. | |
37 | // | |
38 | // All rights reserved. No part of this design may be reproduced stored | |
39 | // in a retrieval system, or transmitted, in any form or by any means, | |
40 | // electronic, mechanical, photocopying, recording, or otherwise, without | |
41 | // prior written permission of Sun Microsystems, Inc. | |
42 | // | |
43 | // Sun Proprietary/Confidential | |
44 | // | |
45 | // **************************************************************************** | |
46 | // File Name : ecc_65data_ecc_generate.sv | |
47 | // Version : /main/1 | |
48 | // Last Update : 03/25/04 12:59:19 loj | |
49 | // **************************************************************************** | |
50 | // Module : ecc_65data_ecc_generate | |
51 | // Description : SEC-DED Checkbit Generation | |
52 | // din[64:0] refers to data bits[64:0] | |
53 | // For SEC and SEC-DED, dout[72:0] refers to | |
54 | // {data bits[64:0], check bits[7:0]} if the -p switch | |
55 | // is not set and {check bits[7:0]} if the -p switch is set. | |
56 | // This module is used while writing data | |
57 | // *************************************************************************** | |
58 | // Revision History | |
59 | // Date Author Description | |
60 | // 03/25/04 loj Initial verilog generated from ECC automation script | |
61 | // 12/20/04 loj Added chk_bit_data. | |
62 | // 12/23/04 loj Changed file and module name | |
63 | // from niu_zcp_65data_ecc_generate | |
64 | // to niu_65data_ecc_generate_w_err_injection. | |
65 | // | |
66 | // **************************************************************************** | |
67 | ||
68 | module niu_65data_ecc_generate_w_err_injection (chk_bit_data, din, dout); | |
69 | input [7:0] chk_bit_data; | |
70 | input [64:0] din; | |
71 | output [72:0] dout; | |
72 | ||
73 | wire [7:0] chk; | |
74 | wire [7:0] chk_bit_data; | |
75 | ||
76 | assign chk[7] = chk_bit_data[7] ^ din[62] ^ din[59] ^ din[57] ^ din[54] ^ din[52] ^ din[49] ^ din[46] ^ din[43] ^ din[40] ^ din[38] ^ din[36] ^ din[32] ^ din[30] ^ din[28] ^ din[24] ^ din[23] ^ din[19] ^ din[16] ^ din[15] ^ din[11] ^ din[10] ^ din[7] ^ din[5] ^ din[4] ^ din[2] ^ din[1]; | |
77 | assign chk[6] = chk_bit_data[6] ^ din[62] ^ din[60] ^ din[57] ^ din[54] ^ din[51] ^ din[49] ^ din[47] ^ din[44] ^ din[41] ^ din[39] ^ din[35] ^ din[33] ^ din[31] ^ din[27] ^ din[25] ^ din[22] ^ din[19] ^ din[18] ^ din[14] ^ din[11] ^ din[9] ^ din[7] ^ din[6] ^ din[4] ^ din[2] ^ din[1]; | |
78 | assign chk[5] = chk_bit_data[5] ^ din[63] ^ din[60] ^ din[57] ^ din[55] ^ din[52] ^ din[50] ^ din[46] ^ din[44] ^ din[41] ^ din[38] ^ din[36] ^ din[34] ^ din[30] ^ din[29] ^ din[26] ^ din[22] ^ din[21] ^ din[17] ^ din[14] ^ din[13] ^ din[12] ^ din[7] ^ din[6] ^ din[4] ^ din[3] ^ din[1] ^ din[0]; | |
79 | assign chk[4] = chk_bit_data[4] ^ din[63] ^ din[60] ^ din[58] ^ din[55] ^ din[52] ^ din[49] ^ din[48] ^ din[45] ^ din[42] ^ din[39] ^ din[37] ^ din[33] ^ din[31] ^ din[28] ^ din[25] ^ din[23] ^ din[20] ^ din[17] ^ din[16] ^ din[12] ^ din[10] ^ din[8] ^ din[6] ^ din[4] ^ din[3] ^ din[1]; | |
80 | assign chk[3] = chk_bit_data[3] ^ din[63] ^ din[61] ^ din[58] ^ din[56] ^ din[53] ^ din[50] ^ din[47] ^ din[44] ^ din[42] ^ din[39] ^ din[36] ^ din[34] ^ din[32] ^ din[28] ^ din[27] ^ din[24] ^ din[20] ^ din[18] ^ din[15] ^ din[13] ^ din[11] ^ din[8] ^ din[6] ^ din[5] ^ din[3] ^ din[1] ^ din[0]; | |
81 | assign chk[2] = chk_bit_data[2] ^ din[64] ^ din[61] ^ din[58] ^ din[55] ^ din[53] ^ din[50] ^ din[47] ^ din[45] ^ din[43] ^ din[40] ^ din[37] ^ din[35] ^ din[31] ^ din[30] ^ din[26] ^ din[23] ^ din[21] ^ din[19] ^ din[15] ^ din[14] ^ din[9] ^ din[8] ^ din[6] ^ din[5] ^ din[3] ^ din[2] ^ din[0]; | |
82 | assign chk[1] = chk_bit_data[1] ^ din[64] ^ din[61] ^ din[59] ^ din[56] ^ din[54] ^ din[51] ^ din[48] ^ din[45] ^ din[42] ^ din[40] ^ din[38] ^ din[34] ^ din[32] ^ din[29] ^ din[26] ^ din[25] ^ din[22] ^ din[18] ^ din[16] ^ din[12] ^ din[9] ^ din[8] ^ din[7] ^ din[5] ^ din[3] ^ din[2] ^ din[0]; | |
83 | assign chk[0] = chk_bit_data[0] ^ din[64] ^ din[62] ^ din[59] ^ din[56] ^ din[53] ^ din[51] ^ din[48] ^ din[46] ^ din[43] ^ din[41] ^ din[37] ^ din[35] ^ din[33] ^ din[29] ^ din[27] ^ din[24] ^ din[21] ^ din[20] ^ din[17] ^ din[13] ^ din[10] ^ din[8] ^ din[7] ^ din[5] ^ din[4] ^ din[2] ^ din[0]; | |
84 | ||
85 | assign dout[72] = din[64]; | |
86 | assign dout[71] = din[63]; | |
87 | assign dout[70] = din[62]; | |
88 | assign dout[69] = din[61]; | |
89 | assign dout[68] = din[60]; | |
90 | assign dout[67] = din[59]; | |
91 | assign dout[66] = din[58]; | |
92 | assign dout[65] = din[57]; | |
93 | assign dout[64] = din[56]; | |
94 | assign dout[63] = din[55]; | |
95 | assign dout[62] = din[54]; | |
96 | assign dout[61] = din[53]; | |
97 | assign dout[60] = din[52]; | |
98 | assign dout[59] = din[51]; | |
99 | assign dout[58] = din[50]; | |
100 | assign dout[57] = din[49]; | |
101 | assign dout[56] = din[48]; | |
102 | assign dout[55] = din[47]; | |
103 | assign dout[54] = din[46]; | |
104 | assign dout[53] = din[45]; | |
105 | assign dout[52] = din[44]; | |
106 | assign dout[51] = din[43]; | |
107 | assign dout[50] = din[42]; | |
108 | assign dout[49] = din[41]; | |
109 | assign dout[48] = din[40]; | |
110 | assign dout[47] = din[39]; | |
111 | assign dout[46] = din[38]; | |
112 | assign dout[45] = din[37]; | |
113 | assign dout[44] = din[36]; | |
114 | assign dout[43] = din[35]; | |
115 | assign dout[42] = din[34]; | |
116 | assign dout[41] = din[33]; | |
117 | assign dout[40] = din[32]; | |
118 | assign dout[39] = din[31]; | |
119 | assign dout[38] = din[30]; | |
120 | assign dout[37] = din[29]; | |
121 | assign dout[36] = din[28]; | |
122 | assign dout[35] = din[27]; | |
123 | assign dout[34] = din[26]; | |
124 | assign dout[33] = din[25]; | |
125 | assign dout[32] = din[24]; | |
126 | assign dout[31] = din[23]; | |
127 | assign dout[30] = din[22]; | |
128 | assign dout[29] = din[21]; | |
129 | assign dout[28] = din[20]; | |
130 | assign dout[27] = din[19]; | |
131 | assign dout[26] = din[18]; | |
132 | assign dout[25] = din[17]; | |
133 | assign dout[24] = din[16]; | |
134 | assign dout[23] = din[15]; | |
135 | assign dout[22] = din[14]; | |
136 | assign dout[21] = din[13]; | |
137 | assign dout[20] = din[12]; | |
138 | assign dout[19] = din[11]; | |
139 | assign dout[18] = din[10]; | |
140 | assign dout[17] = din[9]; | |
141 | assign dout[16] = din[8]; | |
142 | assign dout[15] = din[7]; | |
143 | assign dout[14] = din[6]; | |
144 | assign dout[13] = din[5]; | |
145 | assign dout[12] = din[4]; | |
146 | assign dout[11] = din[3]; | |
147 | assign dout[10] = din[2]; | |
148 | assign dout[9] = din[1]; | |
149 | assign dout[8] = din[0]; | |
150 | assign dout[7] = chk[7]; | |
151 | assign dout[6] = chk[6]; | |
152 | assign dout[5] = chk[5]; | |
153 | assign dout[4] = chk[4]; | |
154 | assign dout[3] = chk[3]; | |
155 | assign dout[2] = chk[2]; | |
156 | assign dout[1] = chk[1]; | |
157 | assign dout[0] = chk[0]; | |
158 | ||
159 | ||
160 | endmodule |