HP 3000 Manuals

Privileged Mode (PM) [ Controlling System Activity ] MPE/iX 5.0 Documentation


Controlling System Activity

Privileged Mode (PM) 

Privileged mode gives a user or a program access to all MPE XL resources,
including intrinsics, privileged procedure calls, main memory, system
tables and privileged CPU instructions.  A program with this capability
can run in a permanently privileged mode, or a temporarily privileged
mode through the GETPRIVMODE, GETUSERRMODE, SWITCHDB, CREATE, and
GETPRIORITY intrinsics.  For further information, refer to the MPE XL
Intrinsics Reference Manual (32650-90028).


CAUTION Privileged mode bypasses the normal checks and limitations that apply to standard MPE XL users. A privileged mode program can actually destroy file integrity, including the MPE XL operating system software itself upon request, Hewlett-Packard will investigate and attempt to resolve problems resulting from the use of privileged mode code. This service is not available under the standard service contract, but is available on a time and materials billing basis. However, Hewlett-Packard will not support, correct, or attend to any modification of the MPE XL operating system software.


MPE/iX 5.0 Documentation