Communications: electrical – Digital comparator systems
Patent
1974-01-02
1976-05-04
Zache, Raulfe B.
Communications: electrical
Digital comparator systems
G05B 1702, G05B 2302, G06F 919, G06F 1100
Patent
active
039551806
ABSTRACT:
A host microprogrammed data processing system includes a plurality of tables to store information coded to define a plurality of a variety of different input-output system configurations of resources required to execute input-output instructions in a corresponding number of target systems being emulated by the host system. The host system further includes emulation apparatus which includes a control store which stores microprograms for directing the system in processing input-output instructions of target programs and for verifying whether each such instruction can be executed by the host system. The emulation apparatus generates coded information indicating which one of a given number of channel program routines the host system is required to use to execute the input-output instruction using the host input-output resources. Using the information of the tables, the emulation apparatus is able to execute completely certain types of target system input-output instructions used to perform control operations.
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patent: 3631405 (1971-12-01), Hoff et al.
patent: 3675214 (1972-07-01), Ellis et al.
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patent: 3859636 (1975-01-01), Cook
Driscoll Faith F.
Honeywell Information Systems Inc.
Reiling Ronald T.
Rhoads Jan E.
Zache Raulfe B.
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