Gee, in my impression, and in my expectations, a USING range check is just that: a check to make sure that the displacement in within the limits specified.
I would not expect it to have any effect on relative jumps. Yes, local-scope labels would be a wonderful thing, but that's a *big* enhancement, and in any event, not what the displacement range check does (although it could be used in limited circumstances to provide a limited amount of locality checking). I use the range check for an "uh-oh, you're in danger of running out of your 4096 bytes of addressability" check. Does anyone know of another "intended" use? Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Paul Gilmartin Sent: Sunday, November 19, 2006 12:52 PM To: IBM-MAIN@BAMA.UA.EDU Subject: Re: assembler question (strong typing) On Sun, 19 Nov 2006 09:02:47 -0700, Jeffrey D. Smith <[EMAIL PROTECTED]> wrote: > > I had a subroutine with ranged USING to prevent based references > beyond the bounds of the subroutine. > By experiment a while back, a ranged using properly prohibited references above the top of the range, but allowed references below the bottom of the range. Is this still true, or has it been fixed? -- gil -- StorageTek INFORMATION made POWERFUL ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
