I've probably been writing assembler for too long to be asking this question now, but what is the purpose of coding '*-*' in some assembler expressions? I've seen it in parameter lists (usually as an adcon), operands of executed instruction (e.g., MVC 0(*-*,5),0(6)), etc. As far as I can tell it effectively operates the same as '0', so it must mean something to the coder and/or the reader (but not to this reader). Any insights?
- mb
