360 Assembly/360 Instructions/LPSW
LPSW - ? - Opcode 82 - Privileged Instruction
Example usage
[edit | edit source]- LPSW
Availability
[edit | edit source]The LPSW instruction is available on all models. It is a privileged instruction.
Purpose of Instruction
[edit | edit source]This instruction allows a privileged program to load the entire contents of the PSW from a location. The typical usage would be for an Operating System to set up the next task to run, or to return control to a problem program after completing processing of a Supervisor Call
Typical Usage
[edit | edit source]Operation
[edit | edit source]This is a privileged instruction, and is available on the 360 only. LPSWE is used on 370 and z/System.
Exceptions and Faults
[edit | edit source]- Privileged Operation
- Invalid Opcode (370 and z/System)
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