Data transfer control system which uses fields of a table to con

Details Data transfer control system which uses fields of a table to con Data transfer control system which uses fields of a table to con

1997-08-27

2000-02-15

Chan, Eddie P.

Electrical computers and digital data processing systems: input/

Input/output data processing

Data transfer specifying

370382, 711165, G06F 1314

Patent

active

060264500

ABSTRACT:
A transfer control table contains a source memory designation field, a desired region designation field, a shifting amount designation field, and a destination memory designation field. An source selection circuit selects source designation word data from the source word data stored in the source memory according to source memory designation data contained in the source memory designation field to provide the source designation word data. A transfer data bit operation circuit extracts, in response to the source designation word data, only the word data required for transfer as valid word data according to desired region designation data contained in the desired region designation field to shift the valid word data by a bit width that is predetermined based on shifting amount designation data contained in the shifting amount designation field and then to provide the shifted valid word data. A destination selection circuit selects which designation region in the destination memory the shifted valid word data are to be stored in and then provides the shifted valid word data to the designated area in the destination memory.

REFERENCES:
patent: 5425023 (1995-06-01), Haraguchi et al.
patent: 5623624 (1997-04-01), Holland et al.
patent: 5640528 (1997-06-01), Harney et al.
patent: 5644787 (1997-07-01), Nakamura et al.
patent: 5659798 (1997-08-01), Blumrich et al.
patent: 5765022 (1998-06-01), Kaiser et al.
patent: 5859990 (1999-01-01), Yarch

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