John, That makes no sense to me... I thought that a 31-bit program could address x'00000000' -> 'x'0FFFFFFF' below the line, and the same above the line. I.O.W. it could go up to x'8FFFFFFF' which means x'0FFFFFFF' above ? This means that the hole is from x'00000000 90000000' -> ?
Regards Herbie -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Chase, John Sent: 07 November 2007 17:20 To: IBM-MAIN@BAMA.UA.EDU Subject: Re: CSA 'above the bar' > -----Original Message----- > From: IBM Mainframe Discussion List On Behalf Of Rick Fochtman > > -----------------------<snip>----------------------- > > >The "bar" is the "hole" in z/OS between 2G and 4G for all address > >spaces, as you said. The origin of this thread was the > desire for a CSA > >in the "above the bar" area, similar to the CSA "below the line" and > >the CSA "above the line". I termed the phrase GCSA for this > area (G for > >the > >64 bit Grande instructions ). > > > > > -----------------------<unsnip>--------------------- > Huh? I was told that "The Bar" was the top of the 31-bit > addressable space. What did I miss? The "bar" is actually 2GiB wide, beginning at 64-bit address x'00000000_80000000' and ending at 64-bit address x'00000000_FFFFFFFF'. In the context of this thread, the "bar" and the "hole" are one and the same. -jc- ---------------------------------------------------------------------- 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 Elavon Financial Services Limited Registered in Ireland: Number 418442 Registered Office: Block E, 1st Floor, Cherrywood Business Park, Loughlinstown, Co. Dublin, Ireland Directors: Robert Abele (USA), John Collins, Terrance Dolan (USA), Pamela Joseph (USA), Declan Lynch, John McNally, Malcolm Towlson Elavon Financial Services Limited, trading as Elavon, is regulated by the Financial Regulator ---------------------------------------------------------------------- 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
