Sable CPU Module Specification

Copyright © 1993 Digital Equipment Corporation.
3.3.4 Data Translation Buffer Page Table Entry Temporary Register
(DTB_PTE_TEMP)
The DTB_PTE_TEMP register is a read-only holding register for DTB_PTE read data.
Reads of the DTB_PTE require two instructions to return the data to the register
file. The first reads the DTB_PTE register to the DTB_PTE_TEMP register. The
second returns the DTB_PTE_TEMP register to the integer register file.
Figure 24: DTB_PTE_TEMP
6
3
6
3
Small Page Format:
3
5
3
4
3
3
RAZ
A
S
M
PFN[33..13]
Large Page Format:
RAZ
40 Functions Located on the DECchip 21064
3
5
3
4
A
S
M
3
3
2
2
2
2
I
PFN[33..22] G
N
1
3
1
3
1
2
U
R
E
1
2
U
R
E
1
1
S
R
E
1
1
S
R
E
1
0
E
R
E
1
0
E
R
E
0
9
K
R
E
0
9
K
R
E
0
8
U
W
E
0
8
U
W
E
0
7
S
W
E
0
7
S
W
E
0
6
E
W
E
0
6
E
W
E
0
5
K
W
E
0
5
K
W
E
0
4
F
O
W
0
4
F
O
W
0
3
F
O
R
0
3
F
O
R
00
20
R
A
Z
00
20
R
A
Z
DTB_PTE_TEMP