OK, I guess I asked my question poorly. And I should not have said anything about the PLO (instruction, not Mid-East organization)
So. Has anyone on this forum actually used the TBEGIN and TEND instructions in their code? I would appreciate knowing what / why they chose to do so. I'm just trying to understand the real purpose of these instructions on a PRACTICAL level. Yes, I've read up on "Transactional Memory" on the web. And how it allows "atomic updates". But I would like a real world example of why use this vs. the older "atomic" instructions (TSET, CS, CDS, PLO, etc). On Fri, Mar 3, 2017 at 8:18 AM, Blaicher, Christopher Y. < cblaic...@syncsort.com> wrote: > PLO is not Transactional-Execution Facility related. Look it up in > chapter 5 of the POP. I have not used it, yet. > > Chris Blaicher > Technical Architect > Mainframe Development > Syncsort Incorporated > 2 Blue Hill Plaza #1563, Pearl River, NY 10965 > > P: 201-930-8234 | M: 512-627-3803 > E: cblaic...@syncsort.com > > www.syncsort.com > > CONNECTING BIG IRON TO BIG DATA > > > -----Original Message----- > From: IBM Mainframe Assembler List [mailto:ASSEMBLER-LIST@LISTSERV.UGA.EDU] > On Behalf Of Ngan, Robert > Sent: Thursday, March 2, 2017 7:22 PM > To: MVS List Server 2 <ASSEMBLER-LIST@LISTSERV.UGA.EDU> > Subject: Re: Transactional Execution - anybody used it? > > The " Compare and swap and double store" function of PLO? > > -----Original Message----- > From: IBM Mainframe Assembler List [mailto:ASSEMBLER-LIST@LISTSERV.UGA.EDU] > On Behalf Of John McKown > Sent: Thursday, March 02, 2017 15:32 > To: ASSEMBLER-LIST@LISTSERV.UGA.EDU > Subject: Transactional Execution - anybody used it? > > I'm just curious. I don't, personally, have any need for it at present. I > can envision some need for it, such as "atomically" incrementing one > variable by some amount and decrementing another by that same amount (like > DB2 does within an SQL transaction). Or maybe updating a double linked > list to remove a node. > > I tried to see if there were any Redbooks about it, but my searches didn't > find anything. > > -- > "Irrigation of the land with seawater desalinated by fusion power is > ancient. It's called 'rain'." -- Michael McClary, in alt.fusion > > Maranatha! <>< > John McKown > > CSC - This is a PRIVATE message - If you are not the intended recipient, > please delete without copying and kindly advise us by e-mail of the mistake > in delivery. NOTE: Regardless of content, this e-mail shall not operate to > bind the Company to any order or other contract unless pursuant to explicit > written agreement or government initiative expressly permitting the use of > e-mail for such purpose. > -- "Irrigation of the land with seawater desalinated by fusion power is ancient. It's called 'rain'." -- Michael McClary, in alt.fusion Maranatha! <>< John McKown
