360 Assembly/360 Instructions/LPSW

From Wikibooks, open books for an open world
Jump to navigation Jump to search

LPSW - ? - Opcode 82 - Privileged Instruction

Example usage[edit | edit source]


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)
Previous Instruction
360 Assembly Instructions   Next Instruction
Previous Opcode
Next Opcode
360 Assembly Language
360 Family Introduction · Basic FAQ · 360 Family · 360 Architecture
360 Instruction Set 360 Instructions · Branch Instructions · Data Transfer Instructions · Control Flow Instructions · Arithmetic Instructions · Logic Instructions · Shift and Rotate Instructions · Other Instructions
Syntaxes and Assemblers 360 Assemblers· Pseudo Instructions
Instruction Extensions Floating Point · High-Level Languages