33 lines
695 B
C
33 lines
695 B
C
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#ifndef ONES
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#define ONES ((_BS_word)(~0L))
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#endif
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register int nwords;
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register _BS_word mask;
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if (offset == 0)
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;
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else if (offset + length >= _BS_BITS_PER_WORD)
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{
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mask = ONES _BS_RIGHT offset;
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DOIT(*ptr++, mask);
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length -= _BS_BITS_PER_WORD - offset;
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}
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else
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{
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mask = (ONES _BS_RIGHT (_BS_BITS_PER_WORD - length))
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_BS_LEFT (_BS_BITS_PER_WORD - length - offset);
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DOIT(*ptr, mask);
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goto done;
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}
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nwords = _BS_INDEX(length);
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while (--nwords >= 0)
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{
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DOIT(*ptr++, ONES);
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}
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length = _BS_POS (length);
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if (length)
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{
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mask = ONES _BS_LEFT (_BS_BITS_PER_WORD - length);
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DOIT(*ptr, mask);
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}
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done: ;
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