Boots – shoes – and leggings
Patent
1986-05-08
1990-03-06
Harkcom, Gary V.
Boots, shoes, and leggings
3647365, G06F 700, G06F 1500
Patent
active
049071858
ABSTRACT:
A program-controlled computer includes a first unit for executing an addition or a substraction on a first floating-point data and a second floating-point data inputted thereto, a second unit for receiving the exponents of the first and second floating-point data, for determining whether or not an absolute value of a difference between the exponents exceeds a predetermined value defined as a number of digits of a mantissa of the first or second floating-point data, and for generating an interrupt signal when the absolute value exceeds the number of digits, and third unit connected to the second unit for interrupting a program being executed in response to the interrupt signal so as to execute an interrupt processing program associated with the interrupt signal.
REFERENCES:
patent: 4229801 (1980-10-01), Whipple
patent: 4366548 (1982-12-01), Kregness et al.
patent: 4386413 (1983-05-01), Vignes et al.
patent: 4511990 (1985-04-01), Hagiwara et al.
patent: 4644490 (1987-02-01), Kobayashi et al.
Freiman et al., "Normalized Integer Operations for a Floating Point Arithmetic Unit," IBM Technical Disclosure Bulletin, vol. 9 #7, pp. 850-851, Dec. 1966.
Harkcom Gary V.
Hitachi , Ltd.
Shaw Dale M.
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