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Version 2.03
3.3.4.2 External Process ID Store Context
(EPSC) Register
The EPSC register contains fields to provide the context
for External Process ID Store instructions. The field
encoding is the same as the EPLC Register.
EPSC
32 63
Figure 6. External Process ID Store Context
Register
These bits are interpreted as follows:
Bits Definition
0 External Store Context PR Bit (EPR)
Used in place of MSR PR by the storage
access control mechanism when an External
Process ID Store instruction is executed.
0 Supervisor mode
1 User mode
1 External Store Context AS Bit (EAS)
Used in place of MSR DS for translation when
an External Process ID Store instruction is
executed.
0 Address space 0
1 Address space 1
2:17 Reserved
18:31 External Store Context Process ID Value
(EPID)
Used in place of all Process ID register values
for translation when an external PID Store
instruction is executed.
500
Power ISA -- Book III-E