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30 lines
499 B
C
30 lines
499 B
C
11 years ago
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/*
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* Copyright 2004, Phil Karn, KA9Q
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* May be used under the terms of the GNU Lesser General Public License (LGPL)
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*/
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#include <stdio.h>
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unsigned char Partab[256];
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int P_init;
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/* Create 256-entry odd-parity lookup table
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* Needed only on non-ia32 machines
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*/
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void partab_init(void) {
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int i, cnt, ti;
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/* Initialize parity lookup table */
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for (i = 0; i < 256; i++) {
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cnt = 0;
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ti = i;
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while (ti) {
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if (ti & 1)
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cnt++;
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ti >>= 1;
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}
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Partab[i] = cnt & 1;
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}
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P_init = 1;
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}
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