ALIGN
Specifies the memory boundaries on which data items of level-01 or level-77 are aligned.
BOUND
Specifies that subscript or index values are to be checked to ensure they are within the limits defined by their OCCURS clause.
BOUNDOPT
Optimizes the code generated for subscripts.
CHECK
Turns on all run-time checks in generated code.
CHECKREFMOD
Turns on bounds checking for reference modification.
FCDALIGN
Ensures the memory boundaries of the file control descriptions (FCDs) associated with SYSIN, SYSOUT and SYSPUNCH files are aligned in the same way as other FCDs and internal structures.
FIXOPT
Changes the way in which generated code accesses the Data Division in object (.obj) code.
LINKALIAS
Lets the user provide assurances to the compiler about how linkage items will be used, to aid optimization.
LINKCHECK
Specifies that each time a Linkage Section item is referenced a check is to be made that it exists.
