Re: Bad Leap Year code, was: ... Possible Data Loss...

2010-01-09 Thread Paul Gilmartin
On Sat, 9 Jan 2010 16:43:42 -0600, Joel C. Ewing wrote: >>> This ought to be feasible (correctly) for 1901 to 2099 with two TM >>> instructions (and two branches). (Comments?) A third TM and branch >>> would handle the 400 year rule. >>> >> Wouldn't it take a fourth TM (or a CLI) to get the

Re: Bad Leap Year code, was: ... Possible Data Loss...

2010-01-09 Thread Joel C. Ewing
On 01/09/2010 04:32 PM, Joel C. Ewing wrote: > On 01/09/2010 10:43 AM, Paul Gilmartin wrote: >> On Sat, 9 Jan 2010 09:49:22 -0600, Joel C. Ewing wrote: >>> >>> The case I remember was IBM's SDSF. The intent obviously was an >>> overly-clever attempt to avoid the "overhead" of divides by using >>>

Re: Bad Leap Year code, was: ... Possible Data Loss...

2010-01-09 Thread Joel C. Ewing
On 01/09/2010 10:43 AM, Paul Gilmartin wrote: > On Sat, 9 Jan 2010 09:49:22 -0600, Joel C. Ewing wrote: >> >> The case I remember was IBM's SDSF. The intent obviously was an >> overly-clever attempt to avoid the "overhead" of divides by using >> multiple TM instructions to test bits in the BCD yea

Re: Subject: Re: VTOC Fmt6

2010-01-09 Thread Ed Gould
From: Rick Fochtman To: IBM-MAIN@bama.ua.edu Sent: Fri, January 8, 2010 2:14:13 PM Subject: Re: Subject: Re: VTOC Fmt6 - ---SNIP- > I strongly disagree > Quali

Re: Heads Up: Possible Data Loss for Temporary Data Sets starting 2010

2010-01-09 Thread Ed Gould
From: Elardus Engelbrecht To: IBM-MAIN@bama.ua.edu Sent: Fri, January 8, 2010 6:49:52 AM Subject: Re: Heads Up: Possible Data Loss for Temporary Data Sets starting 2010 Ed Gould wrote: >The salesman called me and very nastily said we will sue. I said go ahead an

Re: y2k10 problem with credit cards in Germany

2010-01-09 Thread Ted MacNEIL
>The machines can be fixed to temporally send a year of x'0A' in lieu of the >x'10' which is being misinterprete Sort of. Considering that the card is usable on many Financial Institutions in many counmtriess, how do you co-ordinate the changes to machines that don't belong to you, and don't e

Re: 3592 standalone drives at DR Site

2010-01-09 Thread Lorne Dudley
ti...@yahoo.com I'll describe our DR exercise a bit and get you more information next week when the SMS guy returns, including a sample of all of the SMS code if you wish. When we go to the DR site we take our backup tapes from a week back (leaving the most current at our offsite home locati

Re: y2k10 problem with credit cards in Germany

2010-01-09 Thread Itschak Mugzach
If I recall correctly, this is the second case in Germany causing electronic cheaps to become inactive. Earlier last year it was with healthcare cards. ITschak On Sat, Jan 9, 2010 at 1:15 PM, Bernd Oppolzer wrote: > Cool. Interesting, that I did not find this obvious work-around by myself. > May

Re: Bad Leap Year code, was: ... Possible Data Loss...

2010-01-09 Thread Paul Gilmartin
On Sat, 9 Jan 2010 09:49:22 -0600, Joel C. Ewing wrote: > >The case I remember was IBM's SDSF. The intent obviously was an >overly-clever attempt to avoid the "overhead" of divides by using >multiple TM instructions to test bits in the BCD year, determining leap >year by looking for years 0, 4, 8

Re: Bad Leap Year code, was: ... Possible Data Loss...

2010-01-09 Thread Joel C. Ewing
On 01/08/2010 05:23 PM, Andy Wood wrote: >> No, >> >> The error was only dividing the last digit of the year by 4 to determine >> if it was a leap year. I.e. 92 is divisible by 4 but 2 is not. >> > > There must be plenty of ways of going wrong. > > However, the ones I recall were taking a two or

Re: y2k10 problem with credit cards in Germany

2010-01-09 Thread Charles Mills
I had thought of that. I was concerned about what the "non-problem" cards would make of x'0a' when they were expecting a BCD year. Apparently this is just a problem with one "family" of cards -- the majority of cards in Europe and the world are apparently okay. What will they "make" of x'0a' when t

Re: y2k10 problem with credit cards in Germany

2010-01-09 Thread Bernd Oppolzer
Cool. Interesting, that I did not find this obvious work-around by myself. Maybe my brain refuses to take such ways of "correcting one error by inserting another" into account. Happy new year 200A to you all :-) Robert A. Rosenberg schrieb: At 23:34 +0100 on 01/08/2010, Bernd Oppolzer wrote abo