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Diffstat (limited to 'c_src/raid/intz.c')
-rw-r--r-- | c_src/raid/intz.c | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/c_src/raid/intz.c b/c_src/raid/intz.c deleted file mode 100644 index 80c20142..00000000 --- a/c_src/raid/intz.c +++ /dev/null @@ -1,119 +0,0 @@ -/* - * Copyright (C) 2013 Andrea Mazzoleni - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 2 of the License, or - * (at your option) any later version. - * - * This 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. - */ - -#include "internal.h" -#include "gf.h" - -/* - * GENz (triple parity with powers of 2^-1) 32bit C implementation - */ -void raid_genz_int32(int nd, size_t size, void **vv) -{ - uint8_t **v = (uint8_t**)vv; - uint8_t *p; - uint8_t *q; - uint8_t *r; - int d, l; - size_t i; - - uint32_t d0, r0, q0, p0; - uint32_t d1, r1, q1, p1; - - l = nd - 1; - p = v[nd]; - q = v[nd + 1]; - r = v[nd + 2]; - - for (i = 0; i < size; i += 8) { - r0 = q0 = p0 = v_32(v[l][i]); - r1 = q1 = p1 = v_32(v[l][i + 4]); - for (d = l - 1; d >= 0; --d) { - d0 = v_32(v[d][i]); - d1 = v_32(v[d][i + 4]); - - p0 ^= d0; - p1 ^= d1; - - q0 = x2_32(q0); - q1 = x2_32(q1); - - q0 ^= d0; - q1 ^= d1; - - r0 = d2_32(r0); - r1 = d2_32(r1); - - r0 ^= d0; - r1 ^= d1; - } - v_32(p[i]) = p0; - v_32(p[i + 4]) = p1; - v_32(q[i]) = q0; - v_32(q[i + 4]) = q1; - v_32(r[i]) = r0; - v_32(r[i + 4]) = r1; - } -} - -/* - * GENz (triple parity with powers of 2^-1) 64bit C implementation - */ -void raid_genz_int64(int nd, size_t size, void **vv) -{ - uint8_t **v = (uint8_t**)vv; - uint8_t *p; - uint8_t *q; - uint8_t *r; - int d, l; - size_t i; - - uint64_t d0, r0, q0, p0; - uint64_t d1, r1, q1, p1; - - l = nd - 1; - p = v[nd]; - q = v[nd + 1]; - r = v[nd + 2]; - - for (i = 0; i < size; i += 16) { - r0 = q0 = p0 = v_64(v[l][i]); - r1 = q1 = p1 = v_64(v[l][i + 8]); - for (d = l - 1; d >= 0; --d) { - d0 = v_64(v[d][i]); - d1 = v_64(v[d][i + 8]); - - p0 ^= d0; - p1 ^= d1; - - q0 = x2_64(q0); - q1 = x2_64(q1); - - q0 ^= d0; - q1 ^= d1; - - r0 = d2_64(r0); - r1 = d2_64(r1); - - r0 ^= d0; - r1 ^= d1; - } - v_64(p[i]) = p0; - v_64(p[i + 8]) = p1; - v_64(q[i]) = q0; - v_64(q[i + 8]) = q1; - v_64(r[i]) = r0; - v_64(r[i + 8]) = r1; - } -} - |