Data processor with sets of two registers where both registers r

Details Data processor with sets of two registers where both registers r Data processor with sets of two registers where both registers r

1994-08-09

1996-08-27

Black, Thomas G.

Boots, shoes, and leggings

395733, 395800, 3642302, 3642437, 364247, 3642471, 3642681, 3642688, 364933, 3649331, 364DIG1, G06F 946

Patent

active

055509932

ABSTRACT:
A data processing device includes an electronic processor responsive to a context signal and operable in alternative processing contexts identified by the context signal. First and second registers are connected to the electronic processor to participate in one processing context while retaining information from another processing context until a return thereto. A context switching circuit is connected to the first and second registers and operates to selectively control input and output operations of the registers to and from the electronic processor depending on the processing context. Other devices, systems and methods are also disclosed.

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patent: 4179733 (1979-12-01), Launzel et al.
patent: 4197579 (1980-04-01), Otis, Jr. et al.
patent: 4727478 (1988-02-01), Endfield et al.
patent: 4730248 (1988-04-01), Watanabe et al.
patent: 4800491 (1989-01-01), Hardy
patent: 5021993 (1991-06-01), Matoba et al.

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