Boots – shoes – and leggings
Patent
1993-06-01
1994-01-04
Mai, Tan V.
Boots, shoes, and leggings
364786, G06F 750
Patent
active
052766357
ABSTRACT:
A carry look-ahead (CLA) adder accommodates a late carry-in from a low-order external 32-bit adder to enable a 96-bit addition to be performed in the same time in which the CLA adder (60) performs a 64-bit addition. Within each adder slice, intermediate group propagate and group generate terms are generated for each bit location in the adder (60), while the adder simultaneously generates an n-bit group propagate and group generate term. The intermediate group propagate and group generate terms are combined with carry-in terms to generate, in parallel, local carry-out terms within each adder slice. The local carry-out terms and intermediate group propagate and group generate terms are used to form a carry chain path which allows the adder to delay the carry-in of an external carry term.
REFERENCES:
patent: 4584661 (1986-04-01), Grundland
patent: 4962471 (1990-10-01), Cornelissen
patent: 5136539 (1992-08-01), Kumar
patent: 5166899 (1992-11-01), Lamb
"A 3.1ns 32b CMOS Adder in Multiple Output Domino Logic," written by Inseok S. Wang and Aaron L. Fisher, published in IEEE ISSCC Conference Feb. 1988, at pp. 140-141, 332-333.
"High-Speed Addition in CMOS," written by Nhon T. Quach, et al, published in Stanford University Computer Systems Laboratory in Feb. 1990, at pp. 1-13.
"Introduction to Arithmetic for Digital Systems Designers", written by Shlomo Waser and Michael J. Flynn, Holt, Rinehart and Winston 1982, at pp. 83-88.
Anderson William C.
Naini Ajay
Mai Tan V.
Motorola Inc.
Whitaker Charlotte B.
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