Quote: fast addition, subtraction, and compare of masked integers; i.e., a subset of bits in a computer word

Quotation Skeleton

Let m … be interpreted as a constant mask of a … is included in the mask. The class of … be implemented within two or three cycles on … [p.40] (((value + (~mask) + d.value) & mask) … Intuitively, subtraction of two values is direct because … that remain. Similarly addition of two values is … Useful applications of these algorithms come from matrix … [as selected by the mask, m] and the low-order of the remaining … bits represent j, a column index.   Google-1   Google-2

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