Specifying suboptions in runtime options

Use commas to separate suboptions of runtime options. If you do not specify a suboption, you must still specify the comma to indicate its omission, for example STACK(,,ANYWHERE,FREE). However, trailing commas are not required; STACK(4K,4K,ANYWHERE) is valid. If you do not specify any suboptions, either of the following is valid: STACK or STACK().