Boots – shoes – and leggings
Patent
1997-07-25
1999-03-09
Treat, William M.
Boots, shoes, and leggings
36478701, 395564, G06F 9302, G06F 9305, G06F 9315
Patent
active
058812741
ABSTRACT:
An apparatus for performing ADD and ROTATE as a single instruction within a processor is disclosed. In accordance with a preferred embodiment of the present invention, the apparatus comprises an adder and a rotator. The adder is utilized for adding a first number to a second number in a multiple stages to yield a carry-out and a sum output. During each of these stages, the adder produces a group generate value and a group propagate value. The rotator is utilized for rotating the group propagate value and the group generate value at each of the stages before the yielding of the carry-out and the sum output. As such, both ADD and ROTATE instructions can be completed within a single processor cycle.
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Dhong Sang H.
Ngo Hung C.
Silberman Joel A.
Dillon Andrew J.
International Business Machines - Corporation
Ng Antony P.
Salys Casimer K.
Treat William M.
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