Boots – shoes – and leggings
Patent
1978-06-05
1980-08-19
Malzahn, David H.
Boots, shoes, and leggings
G06F 748, G06F 750
Patent
active
042187478
ABSTRACT:
An arithmetic and logic unit (ALU) formed by a small number of different types of basic cells suitable for cellular integration to form large scale integrated (LSI) semiconductor circuits. The arithmetic and logic unit is formed from a plurality of 1-bit ALU cells. Each ALU cell is formed by a plurality of cellular integrated basic cells where each ALU cell includes two data inputs, A and B, and responsively produces a data output, F. Each ALU cell has provision for some type of carry circuit, carry ripple or carry look-ahead. In a carry ripple example, the 1-bit ALU cells are of two basic types, an odd type and an even type. The carry-out from an odd type cell is connected as a carry-in to an even type cell and similarly, the carry-out of an even type cell is connected as a carry-in to an odd type cell. The arithmetic and logic unit is formed by a plurality of alternating odd and even 1-bit ALU cells.
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Bodner et al., "Eight-Bit Arithmetic & Logic Unit", IBM Tech. Disclosure Bulletin, vol. 17, No. 8, Jan. '75, pp. 2402-2406.
Fujitsu Limited
Lovejoy David E.
Malzahn David H.
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