I wish someone would say what you said in chapter 4 of publication SA22-7614-07 "MVS Programming: Extended Addressability Guide". That doc says that "above the bar" starts at 2 GB instead of 4 GB.
Tony Thigpen -----Original Message ----- From: Peter Relson Sent: 12/10/2010 07:46 AM >> I wish you wouldn't write "within the bar". It suggests that >> the bar has thickness, which it does not. Addresses up to and >> including 7FFFFFFF are below the bar. Addresses from 80000000 >> and up are above the bar. "Special dispensation" is not needed. > > Actually, as it was designed, there is "thickness". The bar is from > 80000000 through FFFFFFFF. > Everything from 1_00000000 on up is above the bar. > > The bar has been blurred because of the special compensation for Java to > use an area that includes the bar. > > Peter Relson > z/OS Core Technology Design > >
