Problem state




IBM jargon for user mode, the opposite of "supervisor state".

On IBM System 360, 370 and 390 mainframes privileged instructions may only be executed in "supervisor state". Application programs request the operating system to perform these operations by using the Supervisor Call (SVC) instruction.



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PRMD
PRML
probabilistic
probabilistic automaton
Probe
 Instruction Address Register
PSA
PSL
PSL/PSA
 PROC
procedural language
Procedural Language/SQL
procedure
process