Based on my experience (I have no inside knowledge), IEARR is a very simple non-space-switching PC program that calls your specified EP as a subroutine, and same goes for the ARR address. It's very simple... no subtask is involved, nor any of the privilege modifications that PCs would normally be used for. Essentially, it works like a combo of BAKR and ESTAEX.
Possibly IEARR is more efficient than the latter. I know I've used it a couple of times to call subroutines that needed special abend handling; but it has been a while. sas On Fri, Apr 21, 2023 at 5:44 PM esst...@juno.com <esst...@juno.com> wrote: > Hello > ... > Does the PC routine (IEAARR) simply branch to the Target Routine (R15) > making it > an extension of the IEAARR PC Service Routine? > . > Is the Target Routine Attached as a separate Task ? > . > Can anyone add some details as to how IBM architected this.. > . > . > Paul > . > . > . > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
