// ========== Copyright Header Begin ==========================================
// OpenSPARC T2 Processor File: BL_Hsiao_256_10_Synd.cc
// Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved.
// DO NOT ALTER OR REMOVE COPYRIGHT NOTICES.
// The above named program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public
// License version 2 as published by the Free Software Foundation.
// The above named program is distributed in the hope that it will be
// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
// You should have received a copy of the GNU General Public
// License along with this work; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
// ========== Copyright Header End ============================================
/************************************************************************
** Copyright (C) 2006, Sun Microsystems, Inc.
** Sun considers its source code as an unpublished, proprietary
** trade secret and it is available only under strict license provisions.
** This copyright notice is placed here only to protect Sun in the event
** the source is deemed a published work. Disassembly, decompilation,
** or other means of reducing the object code to human readable form
** is prohibited by the license agreement under which this code is
** provided to the user or company in possession of this copy.
*************************************************************************/
#include "BL_Hsiao_256_10_Synd.h"
BL_EccBits
BL_Hsiao_256_10_Synd::Patterns::syndromes
[256];BL_Hsiao_256_10_Synd::Patterns
BL_Hsiao_256_10_Synd::hsiao_256_10_patterns
;
BL_Hsiao_256_10_Synd::Patterns::Patterns()
// These syndromes are defined in PRM 1.3 Section 16.14.1
// Note they are written in base 2 so we use strtoul() to convert them.
syndromes
[0] = strtoul("1110000000", NULL
, 2); syndromes
[1] = strtoul("1101000000", NULL
, 2); syndromes
[2] = strtoul("1011000000", NULL
, 2); syndromes
[3] = strtoul("0111000000", NULL
, 2); syndromes
[4] = strtoul("1100100000", NULL
, 2); syndromes
[5] = strtoul("1010100000", NULL
, 2); syndromes
[6] = strtoul("0110100000", NULL
, 2); syndromes
[7] = strtoul("1001100000", NULL
, 2); syndromes
[8] = strtoul("0101100000", NULL
, 2); syndromes
[9] = strtoul("0011100000", NULL
, 2); syndromes
[10] = strtoul("1100010000", NULL
, 2); syndromes
[11] = strtoul("1010010000", NULL
, 2); syndromes
[12] = strtoul("0110010000", NULL
, 2); syndromes
[13] = strtoul("1001010000", NULL
, 2); syndromes
[14] = strtoul("0101010000", NULL
, 2); syndromes
[15] = strtoul("0011010000", NULL
, 2); syndromes
[16] = strtoul("1000110000", NULL
, 2); syndromes
[17] = strtoul("0100110000", NULL
, 2); syndromes
[18] = strtoul("0010110000", NULL
, 2); syndromes
[19] = strtoul("0001110000", NULL
, 2); syndromes
[20] = strtoul("1100001000", NULL
, 2); syndromes
[21] = strtoul("1010001000", NULL
, 2); syndromes
[22] = strtoul("0110001000", NULL
, 2); syndromes
[23] = strtoul("1001001000", NULL
, 2); syndromes
[24] = strtoul("0101001000", NULL
, 2); syndromes
[25] = strtoul("0011001000", NULL
, 2); syndromes
[26] = strtoul("1000101000", NULL
, 2); syndromes
[27] = strtoul("0100101000", NULL
, 2); syndromes
[28] = strtoul("0010101000", NULL
, 2); syndromes
[29] = strtoul("0001101000", NULL
, 2); syndromes
[30] = strtoul("1000011000", NULL
, 2); syndromes
[31] = strtoul("0100011000", NULL
, 2); syndromes
[32] = strtoul("0010011000", NULL
, 2); syndromes
[33] = strtoul("0001011000", NULL
, 2); syndromes
[34] = strtoul("0000111000", NULL
, 2); syndromes
[35] = strtoul("1100000100", NULL
, 2); syndromes
[36] = strtoul("1010000100", NULL
, 2); syndromes
[37] = strtoul("0110000100", NULL
, 2); syndromes
[38] = strtoul("1001000100", NULL
, 2); syndromes
[39] = strtoul("0101000100", NULL
, 2); syndromes
[40] = strtoul("0011000100", NULL
, 2); syndromes
[41] = strtoul("1000100100", NULL
, 2); syndromes
[42] = strtoul("0100100100", NULL
, 2); syndromes
[43] = strtoul("0010100100", NULL
, 2); syndromes
[44] = strtoul("0001100100", NULL
, 2); syndromes
[45] = strtoul("1000010100", NULL
, 2); syndromes
[46] = strtoul("0100010100", NULL
, 2); syndromes
[47] = strtoul("0010010100", NULL
, 2); syndromes
[48] = strtoul("0001010100", NULL
, 2); syndromes
[49] = strtoul("0000110100", NULL
, 2); syndromes
[50] = strtoul("1000001100", NULL
, 2); syndromes
[51] = strtoul("0100001100", NULL
, 2); syndromes
[52] = strtoul("0010001100", NULL
, 2); syndromes
[53] = strtoul("0001001100", NULL
, 2); syndromes
[54] = strtoul("0000101100", NULL
, 2); syndromes
[55] = strtoul("0000011100", NULL
, 2); syndromes
[56] = strtoul("1100000010", NULL
, 2); syndromes
[57] = strtoul("1010000010", NULL
, 2); syndromes
[58] = strtoul("0110000010", NULL
, 2); syndromes
[59] = strtoul("1001000010", NULL
, 2); syndromes
[60] = strtoul("0101000010", NULL
, 2); syndromes
[61] = strtoul("0011000010", NULL
, 2); syndromes
[62] = strtoul("1000100010", NULL
, 2); syndromes
[63] = strtoul("0100100010", NULL
, 2); syndromes
[64] = strtoul("0010100010", NULL
, 2); syndromes
[65] = strtoul("0001100010", NULL
, 2); syndromes
[66] = strtoul("1000010010", NULL
, 2); syndromes
[67] = strtoul("0100010010", NULL
, 2); syndromes
[68] = strtoul("0010010010", NULL
, 2); syndromes
[69] = strtoul("0001010010", NULL
, 2); syndromes
[70] = strtoul("0000110010", NULL
, 2); syndromes
[71] = strtoul("1000001010", NULL
, 2); syndromes
[72] = strtoul("0100001010", NULL
, 2); syndromes
[73] = strtoul("0010001010", NULL
, 2); syndromes
[74] = strtoul("0001001010", NULL
, 2); syndromes
[75] = strtoul("0000101010", NULL
, 2); syndromes
[76] = strtoul("0000011010", NULL
, 2); syndromes
[77] = strtoul("1000000110", NULL
, 2); syndromes
[78] = strtoul("0100000110", NULL
, 2); syndromes
[79] = strtoul("0010000110", NULL
, 2); syndromes
[80] = strtoul("0001000110", NULL
, 2); syndromes
[81] = strtoul("0000100110", NULL
, 2); syndromes
[82] = strtoul("0000010110", NULL
, 2); syndromes
[83] = strtoul("0000001110", NULL
, 2); syndromes
[84] = strtoul("1100000001", NULL
, 2); syndromes
[85] = strtoul("1010000001", NULL
, 2); syndromes
[86] = strtoul("0110000001", NULL
, 2); syndromes
[87] = strtoul("1001000001", NULL
, 2); syndromes
[88] = strtoul("0101000001", NULL
, 2); syndromes
[89] = strtoul("0011000001", NULL
, 2); syndromes
[90] = strtoul("1000100001", NULL
, 2); syndromes
[91] = strtoul("0100100001", NULL
, 2); syndromes
[92] = strtoul("0010100001", NULL
, 2); syndromes
[93] = strtoul("0001100001", NULL
, 2); syndromes
[94] = strtoul("1000010001", NULL
, 2); syndromes
[95] = strtoul("0100010001", NULL
, 2); syndromes
[96] = strtoul("0010010001", NULL
, 2); syndromes
[97] = strtoul("0001010001", NULL
, 2); syndromes
[98] = strtoul("0000110001", NULL
, 2); syndromes
[99] = strtoul("1000001001", NULL
, 2); syndromes
[100] = strtoul("0100001001", NULL
, 2); syndromes
[101] = strtoul("0010001001", NULL
, 2); syndromes
[102] = strtoul("0001001001", NULL
, 2); syndromes
[103] = strtoul("0000101001", NULL
, 2); syndromes
[104] = strtoul("0000011001", NULL
, 2); syndromes
[105] = strtoul("1000000101", NULL
, 2); syndromes
[106] = strtoul("0100000101", NULL
, 2); syndromes
[107] = strtoul("0010000101", NULL
, 2); syndromes
[108] = strtoul("0001000101", NULL
, 2); syndromes
[109] = strtoul("0000100101", NULL
, 2); syndromes
[110] = strtoul("0000010101", NULL
, 2); syndromes
[111] = strtoul("0000001101", NULL
, 2); syndromes
[112] = strtoul("1000000011", NULL
, 2); syndromes
[113] = strtoul("0100000011", NULL
, 2); syndromes
[114] = strtoul("0010000011", NULL
, 2); syndromes
[115] = strtoul("0001000011", NULL
, 2); syndromes
[116] = strtoul("0000100011", NULL
, 2); syndromes
[117] = strtoul("0000010011", NULL
, 2); syndromes
[118] = strtoul("0000001011", NULL
, 2); syndromes
[119] = strtoul("0000000111", NULL
, 2); syndromes
[120] = strtoul("1111100000", NULL
, 2); syndromes
[121] = strtoul("0000011111", NULL
, 2); syndromes
[122] = strtoul("1111010000", NULL
, 2); syndromes
[123] = strtoul("0000101111", NULL
, 2); syndromes
[124] = strtoul("0111101000", NULL
, 2); syndromes
[125] = strtoul("1000010111", NULL
, 2); syndromes
[126] = strtoul("0011100110", NULL
, 2); syndromes
[127] = strtoul("1100011001", NULL
, 2); syndromes
[128] = strtoul("1100010110", NULL
, 2); syndromes
[129] = strtoul("0011101001", NULL
, 2); syndromes
[130] = strtoul("1010010110", NULL
, 2); syndromes
[131] = strtoul("0101101001", NULL
, 2); syndromes
[132] = strtoul("0110010110", NULL
, 2); syndromes
[133] = strtoul("1001101001", NULL
, 2); syndromes
[134] = strtoul("1001010110", NULL
, 2); syndromes
[135] = strtoul("0110101001", NULL
, 2); syndromes
[136] = strtoul("0101010110", NULL
, 2); syndromes
[137] = strtoul("1010101001", NULL
, 2); syndromes
[138] = strtoul("0011010110", NULL
, 2); syndromes
[139] = strtoul("1100101001", NULL
, 2); syndromes
[140] = strtoul("1000110110", NULL
, 2); syndromes
[141] = strtoul("0111001001", NULL
, 2); syndromes
[142] = strtoul("0100110110", NULL
, 2); syndromes
[143] = strtoul("1011001001", NULL
, 2); syndromes
[144] = strtoul("0010110110", NULL
, 2); syndromes
[145] = strtoul("1101001001", NULL
, 2); syndromes
[146] = strtoul("1110011000", NULL
, 2); syndromes
[147] = strtoul("0001100111", NULL
, 2); syndromes
[148] = strtoul("0001110110", NULL
, 2); syndromes
[149] = strtoul("1110001001", NULL
, 2); syndromes
[150] = strtoul("1100001110", NULL
, 2); syndromes
[151] = strtoul("0011110001", NULL
, 2); syndromes
[152] = strtoul("1010001110", NULL
, 2); syndromes
[153] = strtoul("0101110001", NULL
, 2); syndromes
[154] = strtoul("0110001110", NULL
, 2); syndromes
[155] = strtoul("1001110001", NULL
, 2); syndromes
[156] = strtoul("1001001110", NULL
, 2); syndromes
[157] = strtoul("0110110001", NULL
, 2); syndromes
[158] = strtoul("0101001110", NULL
, 2); syndromes
[159] = strtoul("1010110001", NULL
, 2); syndromes
[160] = strtoul("0011001110", NULL
, 2); syndromes
[161] = strtoul("1100110001", NULL
, 2); syndromes
[162] = strtoul("1000101110", NULL
, 2); syndromes
[163] = strtoul("0111010001", NULL
, 2); syndromes
[164] = strtoul("0100101110", NULL
, 2); syndromes
[165] = strtoul("1011010001", NULL
, 2); syndromes
[166] = strtoul("0010101110", NULL
, 2); syndromes
[167] = strtoul("1101010001", NULL
, 2); syndromes
[168] = strtoul("1101011000", NULL
, 2); syndromes
[169] = strtoul("0010100111", NULL
, 2); syndromes
[170] = strtoul("0001101110", NULL
, 2); syndromes
[171] = strtoul("1110010001", NULL
, 2); syndromes
[172] = strtoul("1000011110", NULL
, 2); syndromes
[173] = strtoul("0111100001", NULL
, 2); syndromes
[174] = strtoul("0100011110", NULL
, 2); syndromes
[175] = strtoul("1011100001", NULL
, 2); syndromes
[176] = strtoul("0010011110", NULL
, 2); syndromes
[177] = strtoul("1101100001", NULL
, 2); syndromes
[178] = strtoul("0001011110", NULL
, 2); syndromes
[179] = strtoul("1110100001", NULL
, 2); syndromes
[180] = strtoul("0000111110", NULL
, 2); syndromes
[181] = strtoul("1111000001", NULL
, 2); syndromes
[182] = strtoul("1011011000", NULL
, 2); syndromes
[183] = strtoul("0100100111", NULL
, 2); syndromes
[184] = strtoul("0111011000", NULL
, 2); syndromes
[185] = strtoul("1000100111", NULL
, 2); syndromes
[186] = strtoul("1100111000", NULL
, 2); syndromes
[187] = strtoul("0011000111", NULL
, 2); syndromes
[188] = strtoul("1010011001", NULL
, 2); syndromes
[189] = strtoul("0101100110", NULL
, 2); syndromes
[190] = strtoul("0110011001", NULL
, 2); syndromes
[191] = strtoul("1001100110", NULL
, 2); syndromes
[192] = strtoul("1001011001", NULL
, 2); syndromes
[193] = strtoul("0110100110", NULL
, 2); syndromes
[194] = strtoul("0101011001", NULL
, 2); syndromes
[195] = strtoul("1010100110", NULL
, 2); syndromes
[196] = strtoul("0011011001", NULL
, 2); syndromes
[197] = strtoul("1100100110", NULL
, 2); syndromes
[198] = strtoul("1000111001", NULL
, 2); syndromes
[199] = strtoul("0111000110", NULL
, 2); syndromes
[200] = strtoul("0100111001", NULL
, 2); syndromes
[201] = strtoul("1011000110", NULL
, 2); syndromes
[202] = strtoul("0010111001", NULL
, 2); syndromes
[203] = strtoul("1101000110", NULL
, 2); syndromes
[204] = strtoul("1010111000", NULL
, 2); syndromes
[205] = strtoul("0101000111", NULL
, 2); syndromes
[206] = strtoul("0001111001", NULL
, 2); syndromes
[207] = strtoul("1110000110", NULL
, 2); syndromes
[208] = strtoul("1110000101", NULL
, 2); syndromes
[209] = strtoul("0001111010", NULL
, 2); syndromes
[210] = strtoul("1101000101", NULL
, 2); syndromes
[211] = strtoul("0010111010", NULL
, 2); syndromes
[212] = strtoul("1011000101", NULL
, 2); syndromes
[213] = strtoul("0100111010", NULL
, 2); syndromes
[214] = strtoul("0111000101", NULL
, 2); syndromes
[215] = strtoul("1000111010", NULL
, 2); syndromes
[216] = strtoul("1100100101", NULL
, 2); syndromes
[217] = strtoul("0011011010", NULL
, 2); syndromes
[218] = strtoul("1010100101", NULL
, 2); syndromes
[219] = strtoul("0101011010", NULL
, 2); syndromes
[220] = strtoul("0110100101", NULL
, 2); syndromes
[221] = strtoul("1001011010", NULL
, 2); syndromes
[222] = strtoul("1001100101", NULL
, 2); syndromes
[223] = strtoul("0110011010", NULL
, 2); syndromes
[224] = strtoul("0101100101", NULL
, 2); syndromes
[225] = strtoul("1010011010", NULL
, 2); syndromes
[226] = strtoul("0110111000", NULL
, 2); syndromes
[227] = strtoul("1001000111", NULL
, 2); syndromes
[228] = strtoul("0011100101", NULL
, 2); syndromes
[229] = strtoul("1100011010", NULL
, 2); syndromes
[230] = strtoul("1100010101", NULL
, 2); syndromes
[231] = strtoul("0011101010", NULL
, 2); syndromes
[232] = strtoul("1010010101", NULL
, 2); syndromes
[233] = strtoul("0101101010", NULL
, 2); syndromes
[234] = strtoul("0110010101", NULL
, 2); syndromes
[235] = strtoul("1001101010", NULL
, 2); syndromes
[236] = strtoul("1001010101", NULL
, 2); syndromes
[237] = strtoul("0110101010", NULL
, 2); syndromes
[238] = strtoul("0101010101", NULL
, 2); syndromes
[239] = strtoul("1010101010", NULL
, 2); syndromes
[240] = strtoul("0011010101", NULL
, 2); syndromes
[241] = strtoul("1100101010", NULL
, 2); syndromes
[242] = strtoul("1000110101", NULL
, 2); syndromes
[243] = strtoul("0111001010", NULL
, 2); syndromes
[244] = strtoul("0100110101", NULL
, 2); syndromes
[245] = strtoul("1011001010", NULL
, 2); syndromes
[246] = strtoul("0010110101", NULL
, 2); syndromes
[247] = strtoul("1101001010", NULL
, 2); syndromes
[248] = strtoul("1001111000", NULL
, 2); syndromes
[249] = strtoul("0110000111", NULL
, 2); syndromes
[250] = strtoul("0001110101", NULL
, 2); syndromes
[251] = strtoul("1110001010", NULL
, 2); syndromes
[252] = strtoul("1100001101", NULL
, 2); syndromes
[253] = strtoul("0011110010", NULL
, 2); syndromes
[254] = strtoul("1010001101", NULL
, 2); syndromes
[255] = strtoul("0101110010", NULL
, 2); // Convert the syndromes for each single bit error into the H matrix.
// Each pattern (there are 10) is multiplied by the data (a
// BL_Uint256) to generate one bit of ECC.
for (uint_t pattern_ndx
= 0; pattern_ndx
< 10; ++pattern_ndx
)
for (uint_t syndrome_ndx
= 0; syndrome_ndx
< 256; syndrome_ndx
+= 64)
patterns
[9 - pattern_ndx
].set(syndrome_ndx
/64, calc_pattern(syndrome_ndx
, pattern_ndx
));
// For Hsiao ECC, the check bits and the syndrome are calculated
// using the same algorithm.
// Check that inverting one data bit and calculating the resulting
// ECC matching the bit's syndrome.
for (uint_t syndrome_ndx
= 0; syndrome_ndx
< 256; ++syndrome_ndx
)
data
.invert(syndrome_ndx
); if (calc_checks(10, patterns
, data
).get() != syndromes
[syndrome_ndx
].get())
"syndrome mismatch: ndx %d calc_check 0x%x syndrome 0x%x\n",
calc_checks(10, patterns
, data
).get(),
syndromes
[syndrome_ndx
].get());uint64_t BL_Hsiao_256_10_Synd::Patterns::calc_pattern(uint_t syndrome_ndx
,
for (uint_t ndx
= 0; ndx
< 64; ++ndx
)
if (syndromes
[syndrome_ndx
+ ndx
].get() == 0)
fprintf(stderr
, "bad zero syndrome: %d\n", syndrome_ndx
+ ndx
);
pattern
|= ((syndromes
[syndrome_ndx
+ ndx
].get() >> pattern_ndx
) & 0x1ULL
)
projects / OpenSPARC-T2-SAM / blob