46 lines
860 B
C
46 lines
860 B
C
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byte_match_count2 (buf, n, xm, m1, m2, m3, m4)
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unsigned *buf;
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unsigned n;
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unsigned xm;
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unsigned m1, m2, m3, m4;
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{
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unsigned w, cnt = 0;
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unsigned *bp;
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n /= 4;
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bp = buf;
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while (bp < buf + n)
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{
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w = *bp++;
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w ^= xm;
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cnt += ((m1 & w) == 0);
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cnt += ((m2 & w) == 0);
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cnt += ((m3 & w) == 0);
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cnt += ((m4 & w) == 0);
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w = *bp++;
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w ^= xm;
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cnt += ((m1 & w) == 0);
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cnt += ((m2 & w) == 0);
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cnt += ((m3 & w) == 0);
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cnt += ((m4 & w) == 0);
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w = *bp++;
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w ^= xm;
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cnt += ((m1 & w) == 0);
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cnt += ((m2 & w) == 0);
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cnt += ((m3 & w) == 0);
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cnt += ((m4 & w) == 0);
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w = *bp++;
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w ^= xm;
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cnt += ((m1 & w) == 0);
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cnt += ((m2 & w) == 0);
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cnt += ((m3 & w) == 0);
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cnt += ((m4 & w) == 0);
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}
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return cnt;
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}
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