Example of using SYSSTATE

Consider that a program changes ASC mode from primary to AR mode and, while in AR mode, issues the LINKX and STORAGE macros. When it changes ASC mode, it should issue the following:

SAC      512
SYSSTATE ASCENV=AR

The LINKX macro generates different code and addresses, depending on the ASC mode of the caller. During the assembly of LINKX, the LINKX macro service checks the setting of the global bit. Because the global bit indicates that the caller is in AR mode, LINKX generates code and addresses that are appropriate for callers in AR mode.

The STORAGE macro generates the same code and addresses whether the caller is in AR mode or primary mode. Therefore, the STORAGE macro service does not check the global bit.

When the program changes back to primary mode, it should issue the following:

SAC      0
SYSSTATE ASCENV=P