On Wed, 23 Dec 2020 08:43:31 -0500, Peter Relson wrote: >>> VERY FEW system services officially support invocation in RMODE 64. If >>> they don't say that they do, then do not assume that they do. >> >>Is there a blanket statement to this effect in the relevant manual(s)? > >No, nor likely will there be. The books document what z/OS supports your >doing. They do not tend to document what is not supported. This should not >be new news to anyone. > But they don't "document what z/OS supports". How many services make an affirmative statement of support such as, "this service may be invoked from a location below 2GiB"?
Perhaps you don't understand what I mean by "blanket statement": a single affirmative sentence in the Introduction to the manual, "Any service described herein may be invoked from a location below 2 GiB." Adding that doesn't seem to be such "a significant cost". Otherwise you're arrogantly presuming every programmer has your profound understanding of z/OS internals and needn't ask questions such as the one that started this thread. >This applies to almost everything relating to an interface, including (but >not limited to) AMODE 64, data above the bar, ASC mode, ARs, high halves >of GRs. > >You could certainly argue that all services should be perfectly clear on >all of these things. They should be. And if it cost nothing to make that >happen, they would be. But doing so would incur a significant cost that >has not been felt to be justified. Maybe if all the IBM-Main folks put >together a "go fund me" page they could fund such an effort <kidding, of >course> -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
