Most significant digit location

Details Most significant digit location Most significant digit location

1985-01-29

1988-07-19

Harkcom, Gary V.

Boots, shoes, and leggings

364786, 364736, G06F 738, G05F 750

Patent

active

047589744

ABSTRACT:
After performing a floating point addition, it is desired to normalize the sum; that is, shift the most significant digit of the mantissa into the left-most digit location, and adjust the exponent accordingly. Prior art techniques required performing the addition before calculating the number of shifts required. The present technique determines an approximate shift from the addends during addition, resulting in a significant time saving.

REFERENCES:
patent: 3831012 (1974-08-01), Tate et al.
patent: 4152775 (1979-05-01), Schwartz
patent: 4229801 (1980-10-01), Whipple
patent: 4357675 (1982-11-01), Freyman
patent: 4511990 (1985-04-01), Hagiwara et al.
patent: 4534010 (1985-08-01), Kobayashi et al.
patent: 4562553 (1985-12-01), Mattedi et al.
patent: 4563751 (1986-01-01), Barker
patent: 4592006 (1986-05-01), Hagiwara et al.

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