You are talking about packed unsigned math a that has been around in IBM CPCS since forever
Sent from my iPhone > On Apr 23, 2020, at 21:09, Charles Mills <[email protected]> wrote: > > I believe the Enterprise COBOL 6 compiler generates code that takes > advantage, assuming ARCH(12) is specified. > > If you are *not* specifying ARCH(nn) where 'nn' is the architecture level of > your oldest machine (don't forget DR!) then you are leaving MSU's on the > table. The ARCH(nn) level is two less than the "marketing number": a z14 is > ARCH(12), and so forth. > > Charles > > > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Laurence Chiu > Sent: Thursday, April 23, 2020 7:01 PM > To: [email protected] > Subject: Vector Packed Decimal instructions experiences > > Just wondering if any shops have taken advantage of these new instructions > on the Z14 and Z15 and if so, how is your real world experience? > > https://ibmsystemsmag.com/IBM-Z/01/2018/vector-facility-z14 > > Looking at IBM's benchmarks they look pretty good and could have a postive > effect on reducing your 4HRA. > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
