Pipeline arithmetic apparatus

Details Pipeline arithmetic apparatus Pipeline arithmetic apparatus

1982-12-14

1987-04-14

Shaw, Gareth D.

Boots, shoes, and leggings

364900, 364736, G06F 15347

Patent

active

046583556

ABSTRACT:
In a pipeline arithmetic apparatus, an arithmetic operation is divided into a plurality of stages and processed in an overlapping manner in each of the stages. Arithmetic circuits are provided each in association with each stage. Registers hold control information indicating the contents of arithmetic operations to the individual arithmetic circuits or to a predetermined number of the arithmetic circuits, respectively. The control information held by each of the registers is supplied to the associated arithmetic circuit or circuits straight-forwardly or after having been decoded to command the arithmetic operation to be executed by each of the arithmetic circuits. The control information held by each of the registers as well as the output from each of the arithmetic circuits is transferred to the registers and the arithmetic circuits of the succeeding stages, respectively.

REFERENCES:
patent: 4025771 (1977-05-01), Lynch, Jr. et al.
patent: 4128880 (1978-12-01), Cray
patent: 4149242 (1979-04-01), Pirz
patent: 4187539 (1980-02-01), Eaton
patent: 4228497 (1980-10-01), Gupta et al.
patent: 4309691 (1982-01-01), Castleman
patent: 4463441 (1984-07-01), Kassabou et al.

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