Perhaps it didn't register? Bill Hitefield Dino-Software Corporation 800.480.DINO www.dino-software.com
> -----Original Message----- > From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On > Behalf Of Tom Brennan > Sent: Tuesday, August 08, 2023 11:18 AM > To: IBM-MAIN@LISTSERV.UA.EDU > Subject: Re: What's the fastest way to clear a register? Was: Trucks and > Politics > > It was a joke to help get us off the Truck topic. > It didn't work. > > On 8/8/2023 5:30 AM, Seymour J Metz wrote: > > Well, SLR, SR and XR have less of a I-cache hit then the others. What about, > e.g., SGR, SLGR, XFR? > > > > > > -- > > Shmuel (Seymour J.) Metz > > https://nam04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmason > > .gmu.edu%2F~smetz3&data=05%7C01%7CBill.Hitefield%40DINO- > SOFTWARE.COM%7 > > > Ce72c4f15cdb94ae1e1de08db9822beac%7Cbe5c5b1debb343f3a3641e98fd4056 > 47%7 > > > C0%7C0%7C638271047254432081%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC > 4wLjAwMD > > > AiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&s > data > > =qS%2FN2zoZLsXC4GqYPTE45SNSHdXYpSjpeq718ToeGds%3D&reserved=0 > > > > ________________________________________ > > From: IBM Mainframe Discussion List [IBM-MAIN@LISTSERV.UA.EDU] on > > behalf of Attila Fogarasi [fogar...@gmail.com] > > Sent: Monday, August 7, 2023 8:19 PM > > To: IBM-MAIN@LISTSERV.UA.EDU > > Subject: Re: What's the fastest way to clear a register? Was: Trucks > > and Politics > > > > Starting with zEC12 the 4 common ways to clear a register are > > identical > > speed: LHI/LGHI, XR, SR, SLR. On earlier models it varied due to > > differences in pipeline implementation and going way back, to > > limitations in microcode. For current machines there is a lot of > > capability for implementing optimization context, so it isn't so much > > single instructions being optimized but the outcome of a sequence. > > Clearing a register is recognized as a trivial special case (IBM has the > > patent). > > > > On Tue, Aug 8, 2023 at 10:03 AM Tom Brennan > > <t...@tombrennansoftware.com> > > wrote: > > > >> So what's the fastest way to clear a register? > >> > >> Maybe that will get things back to mainframes, and I even know what a > >> mainframe is. > >> > >> On 8/7/2023 4:42 PM, Bill Johnson wrote: > >>> America should never allow trucks as large as we do. Should also not > >> permit doubles and even triples and all trucks should have a lower > >> speed limit. But we all know lives aren’t nearly as important as > >> profits for trucking companies. America also had an opportunity to > >> limit the size of regular vehicles and fossil fuels usage but failed > >> miserably because Americans are self centered, piggish, and environmental > denialists. > >>> > >>> > >>> Sent from Yahoo Mail for iPhone > >>> > >>> > >>> On Monday, August 7, 2023, 7:32 PM, Bob Bridges > >>> <robhbrid...@gmail.com> > >> wrote: > >>> > >>> This is off-topic, and I'll happily take it up with both Bill and > >>> Shmuel > >> offline if requested. But I may as well point out that "fewer > >> deaths" may not be as simple as they're assuming. It seems likely to > >> me as well that if we had smaller trucks going slower, fewer people > >> would die in accidents caused by bigger trucks going faster. But how > >> many people would die because of smaller trucks going slower? You > >> gotta compare deaths to deaths, not simply deaths to nothing. > >>> > >>> Why would people die from smaller trucks going slower? Well, a good > >> deal less cargo would be transported as a result, and I surmise (but > >> it's only surmise) that there'd be a lot more pressure on drivers, as > >> a result, to produce more. Some of that pressure would translate to tired > drivers. > >> And all of it would translate to more expensive transportation, > >> meaning that poorer people would have increased difficulty affording > >> the goods that are cheaper now. > >>> > >>> Don't assume I'm saying that it's better as we do things now. I'm > >>> not; > >> I'm just saying that "this cause of death would be reduced" is no > >> help unless you can estimate how many deaths would also increase. > >> And if anyone thinks there'd be NO deaths owing to more expensive > >> goods, I'll just shut up. > >>> > >>> --- > >>> Bob Bridges, robhbrid...@gmail.com, cell 336 382-7313 > >>> > >>> /* A good scare is worth more than good advice. -Horace (65 BC – 8 > >>> BC) > >> */ > >>> > >>> -----Original Message----- > >>> From: IBM Mainframe Discussion List <IBM-MAIN@LISTSERV.UA.EDU> On > >> Behalf Of Bill Johnson > >>> Sent: Monday, August 7, 2023 18:45 > >>> > >>> For Americans here who’ve never been to Europe, trucks in Europe are > >> much smaller than US trucks, are required to have governors to limit > >> their speed, and are restricted to the right lane. The result is far > >> fewer traffic deaths involving trucks. > >>> > >>> In addition, Europeans almost never drive pickups and their > >>> automobiles > >> are much smaller. > >>> > >>> Their rates of deaths and serious injury are far less than America. > >>> > >>> So for you pro life people, perhaps some road restrictions would > >>> keep > >> more people alive. > >>> > >>> -------------------------------------------------------------------- > >>> -- 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 > >>> > >>> > >> > >> --------------------------------------------------------------------- > >> - 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 > > > > ---------------------------------------------------------------------- > > 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 ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
