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Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure RTEBK Region-Table Entry
RTEBK - 8 bytes, 64 bits
0000 0 Dbl-Word 8 RTEENTRY Entire region-table entry
64-bit mask X'FFFFFFFFFFFFF000'
00FFFFFF RTETOMH X'FFFFFFFF' Isolate table origin
(high word)
00FFF000 RTETOML X'FFFFF000' Isolate table origin
(low word)
64-bit mask X'0000000000000200'
32-bit high X'00000000'
00000200 RTEPROTM X'00000200' Isolate region page
protect bit
64-bit mask X'0000000000000100'
32-bit high X'00000000'
R3TE EDAT-2 with FC=1
00000100 RTEIEPM X'00000100' Isolate execution
protection bit
64-bit mask X'00000000000000C0'
32-bit high X'00000000'
11.. .... RTETFMSK X'000000C0' Isolate table offset
bits
64-bit mask X'0000000000000020'
32-bit high X'00000000'
..1. .... RTEINVMK X'00000020' Isolate invalid bit
64-bit mask X'0000000000000010'
32-bit high X'00000000'
...1 .... RTENULMK X'00000010' Isolate null bit - CP
internal use only. See RTENBIT.
64-bit mask X'000000000000000C'
32-bit high X'00000000'
.... 11.. RTETTMSK X'0000000C' Isolate table type
bits
64-bit mask X'0000000000000003'
32-bit high X'00000000'
.... ..11 RTETLMSK X'00000003' Isolate table length
of region-second table or
region-third table or segment
table
00000002 RTETFNUM 2 Number of table-offset bits
00000002 RTETLNUM 2 Number of table-length bits
00000006 RTETFSHF 6 Offset of table-offset (TF)
field from right edge of RTE
00000006 RTETFBYT 6 Bits to shift TF to get number
of bytes from table origin to
actual start of table
0000000C RTETLBYT 12 Bits to shift (TL+1) to get
number of bytes from origin to
end of table
0000000B RTERXNUM 11 Number of bits in Rx index
0000000B RTESXNUM RTERXNUM Number of bits in
Segment index
000007FF RTERXRIT X'7FF' Mask to select a right-
justified RX
0000000B RTERFNUM RTERXNUM Number of bits in RFX
portion of virtual address
0000000B RTERSNUM RTERXNUM Number of bits in RSX
portion of virtual address
0000000B RTERTNUM RTERXNUM Number of bits in RTX
portion of virtual address
0000000B RTESNUM RTERXNUM Number of bits in SX
portion of virtual address
0000003E RTERFXTL 64-RTETLNUM Number of bits to
shift to convert between an
isolated RFX and the
corresponding RFTL. Also the
number of bits to shift to
convert between RFTL units and
addressable bytes.
00000033 RTERSXTL 64-RTERSNUM-RTETLNUM Number of
bits to shift to convert between
an isolated RSX and the
corresponding RSTL. Also the
number of bits to shift to
convert between RSTL units and
addressable bytes.
00000028 RTERTXTL 64-RTERFNUM-RTERSNUM-RTETLNUM
Number of bits to shift to
convert between an isolated RTX
and the corresponding RTTL. Also
the number of bits to shift to
convert between RTTL units and
addressable bytes.
0000001D RTESXSTL 64-RTERFNUM-RTERSNUM-RTERTNUM-RTE
TLNUM Number of bits to shift to
convert between an isolated SX
and the corresponding STL. Also
the number of bits to shift to
convert between STL units and
addressable bytes.
0000000B RTEFCLR RTERFNUM Number of bits to shift
out RFX portion of virtual
address, i.e. left-align RSX
00000016 RTEFSCLR RTERFNUM+RTERSNUM Number of bits
to shift out RFX and RSX portions
of virtual address, i.e.
left-align RTX
00000035 RTESHIFT 64-RTERXNUM Number of bits to
shift to right-align a
left-aligned Rx index
00000008 RTELENTH *-RTEENTRY Length of one RTE
00000003 RTESZSHF 3 Shift to multiply by size of an
RTE
0008 8 Dbl-Word 8 RTENEXT (0) Next RTE
0000 0 Signed 4 RTEW0 Word 0 of RTE
0004 4 Signed 4 RTEW1 Word 1 of RTE
0004 4 Bitstring 1 RTEW1B0 Word 1 Byte 0 of RTE
0005 5 Bitstring 1 RTEW1B1 Word 1 Byte 1 of RTE
0006 6 Bitstring 1 RTEW1B2 Word 1 Byte 2 of RTE
.... .1.. RTEFC X'04' RTEFC R3TE Format Control
(EDAT2 only)
.... ..1. RTEPROT X'02' RTEPROT RTE Page Protection
bit (only when EDAT-1 enabled,
valid in all RTE levels).
.... ...1 RTEIEP X'01' RTEIEP RTE Instruction
Execution Protection bit (RTE3
only, EDAT-2 only, FC=1)
0007 7 Bitstring 1 RTEW1B3 Word 1 Byte 3 of RTE table origin
0007 7 Bitstring 1 RTEFLAG RTE Flag Byte
.1.. .... RTETRANS X'40' RTE is in the process of
being validated. This bit is a
non-architected CP software
definition and is used to
serialize RTE validation. Note
that TMLL is used to test RTEIBIT
and RTENBIT at the same time.
This creates a dependency on
RETIBIT being to the left of and
in the same halfword as RTENBIT.
..1. .... RTEIBIT X'20' RTE is invalid.
...1 .... RTENBIT X'10' RTE is null and cannot be
validated. This bit is a
non-architected CP software
definition used to identify RTEs
representing non- addressable
storage.
.... 11.. RTETTBTS X'0C' RTE table type bits
.... 11.. RTETTF X'0C' RTE is an RFT entry
.... 1... RTETTS X'08' RTE is an RST entry
.... .1.. RTETTT X'04' RTE is an RTT entry
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