Method and system for controlling references to system storage b

Details Method and system for controlling references to system storage b Method and system for controlling references to system storage b

1995-06-07

1997-03-25

Elmore, Reba I.

395483, B06F 906, B06F 1310

Patent

active

056153546

ABSTRACT:
A method and system for controlling references to system storage. Milli-code mode provides a flexible technique for overriding storage controls associated with referencing system storage of a data processing system. The storage controls to be overridden are not replaced and therefore, a restore of the previous contents of those controls is not necessary. This allows for an increase in system performance and an increase in the efficiency and flexibility of the system. In addition to the above, a system request instruction is provided, which enables flexibility in the manner in which system requests are executed. The flexibility of the system request instruction reduces the number of instructions needed to perform system requests.

REFERENCES:
"Milli-Code", IBM Technical Disclosure Bulletin, vol. 35, No. 4A, Sep. 1992, pp. 451-454.
"IBM System/390 Principles of Operation," Form No. SA22-7201-00. pp. 5-65 to 5-78 of Chapter 5. Program Execution.
"International Business Machines System 370 Extended Architecture Interpretative Execution," Publication No. SA22-7095-1.

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