Divide to integer

Details Divide to integer Divide to integer

1995-06-07

1997-08-26

Mai, Tan V.

Boots, shoes, and leggings

3647481, G06F 752, G06F 738

Patent

active

056616740

ABSTRACT:
A system and method for providing an interruptible remainder instruction that can produce a quotient as well as a remainder. Remainders are computed through an iterative procedure. This procedure is carried out in a computer system's hardware by following a series of steps, the series being interruptible at any point. Each step reduces the magnitude of the dividend until the final remainder can be obtained. In the intermediate steps, the sign of the new (smaller in magnitude) dividend is kept the same as the sign of the original dividend, and the value Ni (which can be considered part of the quotient) is rounded toward zero. Only in the last step must the sign of the operands be considered and directed rounding be performed. Throughout the remainder operation, the partial quotients can be saved so that upon completion, not only has the remainder been computed, but so has the quotient.

REFERENCES:
patent: 3736413 (1973-05-01), Ferguson
patent: 4724529 (1988-02-01), Irukulla et al.

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