Data processing apparatus for performing a pipeline operation on

Details Data processing apparatus for performing a pipeline operation on Data processing apparatus for performing a pipeline operation on

1997-03-27

1999-05-25

Lall, Parshotam S.

395395, 395562, G06F 938

Patent

active

059076941

ABSTRACT:
The present data processing apparatus effects the pipeline operation for each of the machine cycle time with a plurality of pipeline stages processed in parallel. With respect to a load & extension instruction for instructing with the single instruction a first processing portion for reading the data shorter than the register length from RAM 19 and a second processing portion for zero-extending or the sign-extending the data into the register length, a zero-extension or a sign-extension operation in the second processing operation is executed, in a pipeline stream different from the pipeline stream where a first processing operation is executed or in a pipeline stage different from the pipeline stage where the reading from the storage portion of the first processing operation is executed.

REFERENCES:
patent: 5420992 (1995-05-01), Killian et al.
patent: 5450607 (1995-09-01), Kowalczyk et al.
patent: 5560039 (1996-09-01), Dulong
patent: 5590352 (1996-12-01), Zuraski, Jr. et al.
patent: 5638526 (1997-06-01), Nakada
An English Language Summary of JP 7-262005.
An English Language Abstract of JP 2-250117.

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