It seems, that 64bit architecture is going through the same growing pains we saw with earlier versions of OS/VS2 , MVS/ESA , etc. This isn't necessary bad, in fact it's a good thing, since executing in 64bit mode, doing I/O would benefit many customers, I feel.
Scott On Wed, Mar 29, 2017 at 6:48 AM Ed Jaffe <edja...@phoenixsoftware.com> wrote: > On 3/29/2017 2:27 AM, Martin Packer wrote: > > > As I understand it the real restriction is not being interruptible (for > > > I/O). In which case a clever (and aren't they all nowadays?) :-) JVM > might > > > well find itself executing machine code that you'd hope wouldn't have to > > > be copied below the bar first. > > > > Actually, that's not a restriction at all. z/OS fully supports executing > > enabled code running above the bar. > > > > What's missing is binder/loader/contents support to load/manage > > executable RMODE(64) modules and enough officially-supported SVC and > > PC-entered z/OS services to make running programs there feasible. After > > that, you would need compiler and HLL run-time language support from LE > > to open that "world" up to everyone... > > > > -- > > Edward E Jaffe > > Phoenix Software International, Inc > > 831 Parkview Drive North > > El Segundo, CA 90245 > > http://www.phoenixsoftware.com/ > > > > ---------------------------------------------------------------------- > > For IBM-MAIN subscribe / signoff / archive access instructions, > > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > > -- Scott Ford IDMWORKS z/OS Development ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
