Last modified on 21 October 2012, at 12:37

360 Assembly/360 Instructions/ISK

ISK - Insert Storage Key - Opcode 09 - RR Instruction (360 Only) Privileged Instruction

FormatEdit

OpcodeEdit

RR Instruction (2 bytes)
Byte 1
bits (0-7)
Byte 2
target register
(8-11)
source register
(12-15)
(in hex) Opcode
09
(4 bits)
0..F
(4 bits)
0..F
  • The first argument is a target register which value is affected by the instruction.
  • The second argument is the source register.
  • The target register and source register values are 0 to 15.

Example usageEdit

ISK R1,R2

AvailabilityEdit

The ISK instruction is available only on 360 models. It is a privileged instruction.

Purpose of InstructionEdit

Typical UsageEdit

OperationEdit

This is a privileged instruction, and is only available on the 360 series. The ISKE instruction is available on later 370 and zSystem processors.

Condition CodesEdit

Condition codes are not changed.

Exceptions and FaultsEdit

  • Privileged Operation
  • Invalid Opcode (370 and z/System)
Previous Instruction
IPTE
360 Assembly Instructions Next Instruction
ISKE
Previous Opcode
08
Next Opcode
0A