Let me volunteer to be the dumb one here.
> Note that use of transactional processing is inherently dual path.
> You would still need the "other" path even if every machine in the world
> already supported TBEGIN.
From: IBM Mainframe Assembler List [mailto:ASSEMBLER-LIST@LISTSERV.UGA.EDU] On
Behalf Of Ed Jaffe
Sent: Saturday, August 12, 2017 1:40 PM
Subject: Re: PLO <subject change: was Just Testing - It got very quiet>
On 8/11/2017 6:31 AM, Blaicher, Christopher Y. wrote:
> PLO is an expensive instruction. It can do a little or a lot. There are
> about 10 pages in the POP to describe it.
> However, until transactional processing is supported in all environments,
> ISV's, who never know what environment they are running under, need to keep
> using the PLO instruction. OK, Peter, we could dual path it, but who likes
> to maintain dual paths?
Note that use of transactional processing is inherently dual path.
You would still need the "other" path even if every machine in the world
already supported TBEGIN.