Patent
1994-11-18
1997-03-18
Harvey, Jack B.
395821, 395868, 395826, G06F 300, G06F 304
Patent
active
056131631
ABSTRACT:
Execution of input/output operations is controlled by one or more suspend and/or resume mechanisms. Suspension of an input/output operation is accomplished by one of a number of mechanisms including, for instance, a START SUBCHANNEL instruction with execution limits, a SUSPEND SUBCHANNEL instruction with or without a suspension time limit, or a suspend subchannel channel command word with or without a suspension time limit. Subsequent to suspending execution of a channel program, execution can be resumed automatically or by issuing a RESUME SUBCHANNEL instruction with limits or a resume subchannel channel command word with limits.
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Marron Assaf
Meritt Allan S.
Crockatt Joann K.
Etienne Ario
Goldman Bernard M.
Harvey Jack B.
International Business Machines - Corporation
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