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NM and CM callable. Causes the area between DL and DB in the compatibility mode (CM)
stack to be expanded or contracted within the CM stack segment. Syntax | |
I16 I16V
dldbsize:=DLSIZE(size);
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Functional Return | |
- dldbsize
16-bit signed integer (assigned functional return) Returns the granted number of half words for the DL-to-DB area.
This value is negative, unless error condition CCL (1) is returned; a
positive value is possible.
Parameters | |
- size
16-bit signed integer by value (required) Passes the desired number of half words for the DL-to-DB area,
represented by a negative value. A size of 0 is permitted
and resets the DL-to-DB area of the CM stack to the original value
assigned when the process was created (initial DL).
The size granted is the absolute value of size,
rounded up so that the distance between the beginning of the
segment and DB is a multiple of 128 half words.
Operation Notes | |
If expanding, all information in the area between DL and DB is saved.
If contracting, all information in the area between DL and DB is lost. If the DL area has been expanded, it can be contracted by
calling DLSIZE with a size parameter requesting a smaller
DL-to-DB area. When called from programs running in NM the DLSIZE intrinsic
affects the CM stack only; programmatic expansion and contraction
in NM is not necessary. Condition Codes | |
- CCE (2)
Request granted. The value returned is >= the value requested. - CCG (0)
Request denied. The requested size exceeded the maximum limit
allowed. The maximum limit allowable is granted, and its size is returned. - CCL (1)
Request denied. An illegal size parameter was specified,
the size requested is less than the initial DL size,
or the size parameter was a positive integer. The original area
size, assigned when the CM stack segment was created, is granted.
Related Information | |
- Intrinsics
None - Commands
None - Manuals
Introduction to MPE XL for MPE V Programmers (30367-90005)
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