Data processing system, data processing method and program

Details Data processing system, data processing method and program Data processing system, data processing method and program

2008-06-20

2009-11-10

Tsai, Henry W. H. (Department: 2184)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output command process

C710S006000, C710S007000, C710S020000, C710S021000, C710S024000, C712S034000, C712S035000, C712S226000, C719S313000, C719S328000

Reexamination Certificate

active

07617334

ABSTRACT:
In the host, an IP issues CCW, and a CH encodes the CCW and a CCW chain by the encode program to create a code including the description of controlling a conditional branch with the DKC and transmits the code to a PORT in the DKC. In the DKC, the PORT decodes the code by the decode program, and a CP sequentially processes each command obtained by the decoding and returns a return code representing the end state of the processing. The host receives the return code to recognize the end state of the processing.

REFERENCES:
patent: 3798613 (1974-03-01), Edstrom et al.
patent: 4272815 (1981-06-01), Kadowaki et al.
patent: 5060142 (1991-10-01), Menon et al.
patent: 5740391 (1998-04-01), Hunt
patent: 5901327 (1999-05-01), Ofek
patent: 2002/0052985 (2002-05-01), Furuumi et al.
patent: 2001-125866 (2001-05-01), None

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