Mmucr0 - Memory Management Unit Control Register 0 - IBM A2 User Manual

User's Manual
A2 Processor

14.5.89 MMUCR0 - Memory Management Unit Control Register 0

Register Short Name:
Decimal SPR Number:
Initial Value:
Slow SPR:
Guest Supervisor Mapping:
Bits Field Name
32 ECL
33 TID_NZ
34 TGS
35 TS
36:37 TLBSEL
38:49 ///
50:63 TID
Alphabetical Register Listing
Page 644 of 897
MMUCR0
1020
0x0000000000000000
Y
Initial
Value
0b0 Extended Class
Used to transfer the ExtClass field of the selected ERAT entry.
0b0 Translation ID Non-Zero
Used to transfer the TID_NZ field of the selected ERAT entry.
0b0 Translation Guest State
Used to transfer the TGS bit of the selected ERAT entry.
0b0 Translation Space
Used to transfer the TS bit of the selected ERAT entry.
0b00 TLB Select
ERAT structure selection:
00 Reserved.
01 Reserved.
10 I-ERAT.
11 D-ERAT.
0x0 Reserved
0x0 Translation ID
Used to transfer the TID field of the selected ERAT entry.
Read Access:
Write Access:
Duplicated for Multithread:
Notes:
Scan Ring:
Description
Hypv
Hypv
Y
AM
func
Version 1.3
October 23, 2012