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Hex Dec Type/Val Lng Label (dup) Comments
---- ---- --------- ---- -------------- --------
0000 0 Structure MPLBK Map Parameter List BlocK.
0000 0 Signed 2 MPLDIAGC Diagnose number.
MPLDIAGC MPLDC244 X'0244' MPLDC244 Diagnose code
244.
0002 2 Signed 2 MPLFCODE Diagnose function code.
.... .... MPLIPOOL X'0000' MPLIPOOL Identify Pool
function code.
.... ...1 MPLDFMAP X'0001' MPLDFMAP Define mapping
function code.
.... ..1. MPLRMMAP X'0002' MPLRMMAP Remove mapping
function code.
.... ..11 MPLSAVPG X'0003' MPLSAVPG Save-list
function code.
The following equate should always be the same as
the highest diagnose 244 function code.
.... ..11 MPLMAXFC X'0003' Highest or maximum
function code allowed for this
diagnose.
0004 4 Signed 2 MPLDWLEN Y(MPLSIZE) Size of block in
doublewords.
0006 6 Signed 2 MPLVERSN Version field.
.... ...1 MPLVERCD 1 MPLVERCD The version number of
this MPLBK.
0008 8 Dbl-Word 8 MPLASIT For function code 00 and 03
identify pool and save-list
functions this field contains
zeroes.
For function code 01 and 02
define and remove mapping this
field contains an Address Space
Identification Token associated
with the mapping function being
processed.
0010 16 Signed 4 * Reserved for IBM use.
0014 20 Address 4 MPLSPAGE For function codes 00 and 03
identify-pool and save-list this
field contains zeroes.
For function code 01 and 02
define and remove mapping, this
field contains a starting
absolute address in the address
space to be associated with a
pool-relative-block number.
0018 24 Signed 4 MPLEXTCT For function code 00 identify
pool this field contains the
number of minidisk extents to be
processed.
00000018 MPLPAGCT MPLEXTCT For function code 01 and
02 define and remove mapping this
field contains the number of
consecutive address pages to be
processed.
00000018 MPLENTCT MPLEXTCT For function code 03
this field contains the total
count of entries in the SLDBK.
001C 28 Bitstring 1 MPLTYPFG Type flag.
1... .... MPLCONSC X'80' Indicates that the PRBN
mapping is to be consecutive. If
this bit is zero the mapping is
based on mapping-list definition
block (MLDBK)
1... .... MPLBLOCK X'80' For function code 3 this
bit is on for the block form of
the SLDBK which is in page
ranges. If this bit is zero the
SLDBK is in the list form which
is list of individual pages.
001D 29 Bitstring 1 MPLPAGVW This field contains the page view
codes.
00000000 MPLFETCH 0 Indicates that the current
contents of the pages are
discarded and the contents of the
associated minidisk blocks are
made available in the mapped
pages.
.... ...1 MPLRETAN X'01' Indicates the current
contents of the pages are
retained.
.... ..1. MPLZERO X'02' Indicates the current
contents of the page are
discarded and the mapped pages
are considered to contain binary
zeroes.
.... ..1. MPLPAGMX X'02' Maximum pageview code
value.
001E 30 Bitstring 1 MPLRSVD0 (2) Reserved for IBM use.
0020 32 Signed 4 MPLXLDAL ALET specifying address space
containing XLDBK for function
code 00.
00000020 MPLMLDAL MPLXLDAL ALET specifying address
space containing XLDBK for
function code 01.
00000020 MPLSLDAL MPLXLDAL ALET specifying address
space containing SLDBK for
function code 03.
0024 36 Signed 4 MPLXLDBA (0) For function code 00 identify-
pool, this field contains the
guest real address of the XLDBK
block.
00000024 MPLMLDBA MPLXLDBA For function code 01
define mapping, this field
contains a guest real address of
the MLDBK if bit MPLCONSC is
zero. The address is on a
doubleword boundary.
00000024 MPLSPRBN MPLXLDBA For function code 01
define mapping this field
contains a starting
pool-relative-block number (PRBN)
if bit MPLCONSC is one. Each
subsequent page in the range of
pages to be mapped is associated
with the next larger PRBN.
00000024 MPLSLDBA MPLXLDBA For function code 03
save-list, this field contains a
guest real address of the first
save-list definition block
(SODBK).
0024 36 Bitstring 1 * (3)
0027 39 Bitstring 1 MPLXLDB3 Used to test for doubleword
alignment.
00000027 MPLMLDB3 MPLXLDB3 Ditto .
00000027 MPLSLDB3 MPLXLDB3 .Ditto .
00000028 MPLLEN *-MPLBK MPLBK length in bytes.
00000005 MPLSIZE (MPLLEN+7)/8 MPLBK size in
doublewords
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