Mas7 - Mmu Assist Register 7 - IBM A2 User Manual

User's Manual
A2 Processor

14.5.79 MAS7 - MMU Assist Register 7

Register Short Name:
Decimal SPR Number:
Initial Value:
Slow SPR:
Guest Supervisor Mapping:
Bits Field Name
32:53 ///
54:63 RPNU
Alphabetical Register Listing
Page 632 of 897
MAS7
944
0x0000000000000000
Y
Initial
Value
0x0 Reserved
0x0 Real Page Number (Upper Bits 22:31)
For TLB entries (MAS0.ATSEL = 0), this field is used to transfer the MSbs of the entry real
page number. This value is treated as a TLB entry logical page number (LPNU) when an
LRAT is present and enabled. This field is treated as a real page number (RPNU) for LRAT
entries (MAS0.ATSEL = 1) and used to transfer the LRAT.RPN[22:31] value.
Read Access:
Write Access:
Duplicated for Multithread:
Notes:
Scan Ring:
Description
Priv
Priv
Y
HM
func
Version 1.3
October 23, 2012