On Wed, Nov 5, 2014 at 1:03 PM, Paul Gilmartin < 00000014e0e4a59b-dmarc-requ...@listserv.uga.edu> wrote:
> On 2014-11-05, at 05:10, Tony Thigpen wrote: > > > And z/VSE followed the same pattern as z/OS. > > > > And, as a little extra, this is why the 31/64 line is called a BAR, not > a LINE. The unusable addresses are what is in the BAR. So, you can be above > the bar, or below the bar, but not in the bar. (No drinking allowed. :-) ) > > > This been discussed, tediously, in these lists. The statement, including > from some IBM employees, perhaps unofficial, is that the BAR is an > infinitesimal boundary immediately below 2GiB. Any address >= 2GiB > is considered *above*, never in, the BAR. > > Nevertheless, as long as z/OS and z/VSE exclude 2GiB <= address < 4GiB, > I prefer your interpretation. Is "bar" prevalent in VM or Linux argot? > On the Linux-390 forum, I've never seen the use of "bar" in this context. Only 64 bit mode or 31 bit mode. In the same context as the x86_64 or i386 mode for Intel. > > -- gil > -- The temperature of the aqueous content of an unremittingly ogled culinary vessel will not achieve 100 degrees on the Celsius scale. Maranatha! <>< John McKown
