With Peter suggestion you cannt preserve the value of R15 it’s not like the RP instruction where you can save the register you are working with what if I have a value in R15 that I want its original value
> On Jun 26, 2019, at 9:39 AM, Tom Marchant > <000000a69b48f3bb-dmarc-requ...@listserv.uga.edu> wrote: > >> On Wed, 26 Jun 2019 07:39:38 -0400, Joseph Reichman wrote: >> >> Ultimitly I would need to do a LPSWE to get to where I need to go > > No you wouldn't. > >> I guess 64 bit support isn’t there yet > > I guess you didn't understand Peter's reply. > > What you are asking for as to be able to store 8 bytes of data in a fullword. > You can't do that. > > -- > Tom Marchant > >>> On Jun 26, 2019, at 7:37 AM, Peter Relson <rel...@us.ibm.com> wrote: >>> >>> <snip> >>> I was hoping to see STG R4 but the code still had ST R4 >>> </snip> >>> >>> Please re-read what Chuck A wrote. >>> <snip> >>> You can’t retry to rmode64 code. You have to have a stub code below the >>> bar to retry to and have the stub enter your rmode64 code. >>> </snip> >>> >>> There is such a stub provided by the system, CVTBSM0F. >>> You set SDWAG6415 to the address you really want to retry to, >>> pointer-defined (so for AMODE 64 bit 63 must be on). Identify CVTBSM0F via >>> SETRP as the retry address. . >>> >>> Peter Relson >>> z/OS Core Technology Design
