> how hard is it to save your registers in your own R13 area, write an inline > WTO
VERY hard if you are on an SRB, X-memory, or hold any locks. > IMHO an ABEND macro with a unique abend code is far preferable to any of the > discussed techniques except during actual development unit testing Agreed. Charles -----Original Message----- From: IBM Mainframe Assembler List [mailto:ASSEMBLER-LIST@LISTSERV.UGA.EDU] On Behalf Of Farley, Peter x23353 Sent: Thursday, May 11, 2017 11:23 AM To: ASSEMBLER-LIST@LISTSERV.UGA.EDU Subject: Re: Performance of Decimal Floating Point Instruction PMFJI, but really, even for non-LE subroutines how hard is it to save your registers in your own R13 area, write an inline WTO with message indicating where and why you want to blow up and an ABEND macro right after? Yes, the WTO is non-reentrant. Making it reentrant is not that hard. IMHO an ABEND macro with a unique abend code is far preferable to any of the discussed techniques except during actual development unit testing (before any client/user ever sees it), but maybe that's just me. Peter -----Original Message----- From: IBM Mainframe Assembler List [mailto:ASSEMBLER-LIST@LISTSERV.UGA.EDU] On Behalf Of John McKown Sent: Thursday, May 11, 2017 1:52 PM To: ASSEMBLER-LIST@LISTSERV.UGA.EDU Subject: Re: Performance of Decimal Floating Point Instruction On Thu, May 11, 2017 at 12:32 PM, Charles Mills <charl...@mcn.org> wrote: > And one of these days the architecture starts allowing EX of an EX and > it fails the bite test. > <EX discussion and old hardware description snipped> > Charles > -- This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system.
