I have started using the memory map function in the memory view of the

I have two data structures

D RList DS Qualified
D based(CurrentRList)
D Type 10a
D Storage *
D FreeIndexes *
D ElementSize 10u 0
D ElementDestructor...
D * procptr
D NextIteratorIndex...
D 10U 0


D Array DS Qualified
D based(CurrentArray)
D Type 10a
D ElementSize 10U 0
D CurrentNumberOfElements...
D 10U 0
D CurrentMax 10u 0
D GrowthAmount 10u 0
D InitialAmount 10u 0
D IsSorted N
D CompareMethod * ProcPtr
D FindMethod * ProcPtr
D ElementDestructor...
D * ProcPtr
D Storage *
D NextIteratorIndex...
D 10U 0

The storage sub field in the RList DS points to a structure of type Array.

I have modelled the above two DS in the following two map XML files

<?xml version="1.0"?>
<LAYOUT Header="RLIST" length="84">
<FIELD Header="Type" Type="EBCDIC" length="10" />
<FIELD Header="" Type="PADDING" length="6" />
<FIELD Header="Storage" Type="MAP" length="16" layout =
<FIELD Header="FreeIndexes" Type="HEX" length="16" />
<FIELD Header="ElementSize" Type="32_BIT_UINT" length="4" />
<FIELD Header="" Type="PADDING" length="12" />
<FIELD Header="Destructor" Type="HEX" length="16" />
<FIELD Header="NextIter" Type="32_BIT_UINT" length="4" />


<?xml version="1.0"?>
<LAYOUT Header = "ARRAY" length="100">
<FIELD Header = "Type" Type = "EBCDIC" length = "10"/>
<FIELD Header = "ElementSize" Type = "32_BIT_UINT" length = "4" />
<FIELD Header = "CurrentNumberOfElements" Type = "32_BIT_UINT" length =
"4" />
<FIELD Header = "CurrentMax" Type = "32_BIT_UINT" length = "4" />
<FIELD Header = "GrowthAmount" Type = "32_BIT_UINT" length = "4" />
<FIELD Header = "InitialAmount" Type = "32_BIT_UINT" length = "4" />
<FIELD Header = "IsSorted" Type = "HEX" length = "1" />
<FIELD Header = "" Type="PADDING" length = "1" />
<FIELD Header = "CompareMethod" Type = "HEX" length = "16" />
<FIELD Header = "FindMethod" Type = "HEX" length = "16" />
<FIELD Header = "ElementDestructor" Type = "HEX" length = "16" />
<FIELD Header = "Storage" Type = "HEX" length = "16" />
<FIELD Header = "NextIter" Type = "32_BIT_UINT" length = "4" />

When I stop in debug and do a monitor memory on a pointer pointing to RLIST
and choose the RLIST map XML file all of the fields are correct except the
storage one, which shows the ARRAY structure as I would expect but has
????????? for all of the sub fields.

Has anybody got a working example of the memory maps working with pointers
and RPGLE datastructures?

There's not much out there is google land, the best I could find was.


which seems to be some kind of z/OS reference.

Here's hoping someone knows how this works J


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