Apparatus for skipping arithmetic calculations involving leading

Details Apparatus for skipping arithmetic calculations involving leading Apparatus for skipping arithmetic calculations involving leading

1990-01-11

1991-06-11

Harkcom, Gary V.

Boots, shoes, and leggings

G06F 700

Patent

active

050238264

ABSTRACT:
In a digital computer system which may perform arithmetic computations on multi-word variable-length operands, and in which computation is performed right to left (least significant digit first), apparatus detects when all word positions containing significant digits have been computed and terminates computation after computing one additional word position to allow any carry to propagate. Additional apparatus forces zeros for those word positions of an operand that do not contain significant digits, for they may be non-existent positions.

REFERENCES:
patent: 4539549 (1985-09-01), Hong et al.
patent: 4774688 (1988-09-01), Kobayashi et al.
patent: 4789956 (1988-12-01), Hildebrandt
Shirley, "Parallel-Search MAX/MIN Word Algorithm"; IBM Tech. Disclosure Bull., vol. 22, No. 7; Dec. 1979, pp. 2671-2672.

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