IBM Professional Series User Manual page 259

STR
Note:
If
a module is generated with the NOMAP
option, that module cannot later be loaded and
started with the eMS LOADMOD and START
commands. When NOMAP is specified, the
information produced is not sufficient for the
START command to execute properly. However, a
module generated with the NOMAP option can later
be invoked as a command; that is, it can be invoked
if its filename is entered.
invokes the eMS storage initialization routine when
the MODULE file is subsequently loaded (see the
LOADMOD command description). This routine
frees any storage remaining from a previous
program. STR is the default setting if the MODULE
is to be loaded at the beginning of available user
storage.
If
you have issued eMS SET RELPAGE ON, STR
causes eMS storage initialization to release the
remaining pages of storage.
Note: If a program running in the user area calls a
transient routine that was generated with the STR
option, the user area storage pointers will be reset.
This reset condition could cause errors upon return
to the original program (for example, when OS
GETMAIN/FREEMAIN macros are issued in the
user program).
NOSTR
indicates that, when the MODULE is loaded, free
storage pointers are not reset for any storage
currently in use. NOSTR is the default setting if the
MODULE file is to be loaded at a location other
than the default load address.
SYSTEM
indicates that when the MODULE file is
subsequently loaded, it is to have a storage protect
key of zero.
7-86 VM/PC Users Guide