Re: Change in GETMAIN behavior

> From: "Tony Harminc" > On 19 November 2015 at 10:14, Gary Weinhold wrote: > > But you have a valid concern about vendors' assembler code. We should be > > asked whether we know about this. (snip) > One slighly related point: It has been the case from

Re: NFS Client implementation query

In article

replacement CRTs for 3278s

Shmuel Metz , Seymour J. shmuel+ibm-m...@patriot.net wrote: In 20150730231354.cffa74874...@lara.ugcs.caltech.edu, on 07/30/2015 at 04:13 PM, glen herrmannsfeldt g...@ugcs.caltech.edu said: Does anyone know where to get replacement, either new or with lots of life left, CRTs for 3729 3279

replacement CRTs for 3278s

Does anyone know where to get replacement, either new or with lots of life left, CRTs for 3729s? thanks. -- glen -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the

Re: 1403 at 60Hz

(snip, I wrote) From one 1403 manual, I see some gears that are specified for 50Hz and for 60Hz, but I am not sure what they do. As far as I can tell, the train is powered by a synchronous motor (or close enough). I presume you don't want the train running 1.2 times as fast. (snip, John

Re: 1403 at 60Hz

(snip, someone wrote) I don't know power consuption, but nowadays it's not hard to get semiconductor-based power supply which generater 60Hz or 50Hz or any value you want (within some range). (snip, someone else wrote) (sorry for losing the attributions, I am copying from usenet) I suppose

1403 at 60Hz

I wonder if anyone knows what has to change to move a 1403 from 50Hz to 60Hz? If they use synchronous motors, then some belts or gears would be different. For transformers, you need more iron in the core for 50Hz, so 50Hz transformers should be fine at 60Hz, but not always the other way around.

Re: Strange 047 abend

Is the EXECUTE instruction broken on your machine? With what you are doing, you could possibly cause ABEND047 (or all sorts of other abends) not on the STC instruction, but on the AP instruction, if you had set a breakpoint on the AP under TSO TEST. That could happen because you would

Re: 3705

William Jones bjo...@followup-to-newsgroup.com wrote: (snip, I wrote) I am hoping to run Wylbur, Milten, and Orvyl, but TSO or VM/CMS are also possibilities. Is Wylbur or SuperWylbur available? I saw discussion on this years ago from Gerhard when he mentioned he was working on it but then

Re: 3705

William Jones bjo...@followup-to-newsgroup.com wrote: On 2015-07-22, glen herrmannsfeldt g...@ugcs.caltech.edu wrote: William Jones bjo...@followup-to-newsgroup.com wrote: (snip, I wrote) I am hoping to run Wylbur, Milten, and Orvyl, but TSO or VM/CMS are also possibilities. Is Wylbur

Re: 3705

http://www.livingcomputermuseum.org/About-Us/What-is-Living-Computer-Museum.aspx -- glen -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: 3705

Shmuel Metz , Seymour J. shmuel+ibm-m...@patriot.net wrote: (snip, I wrote) To connect terminals to a 3705. That's *WHAT*, not *WHY*. Why real terminals and why through a 3705? Probably some real terminals, and a terminal server for people not close enough.

Re: 3705

Shmuel Metz , Seymour J. shmuel+ibm-m...@patriot.net wrote: In 20150721061350.bb5994874...@lara.ugcs.caltech.edu, on 07/20/2015 (snip, I wrote) OK, I forgot that the Usenet gateway doesn't work anymore. I am wondering what software one needs for a 3705 to connect up ordinary ASCII terminals.

Re: 3705

(snip, I wrote) To connect terminals to a 3705. Well, maybe a terminal server instead of terminals. I'm posting to Usenet. (Can't be bothered.) That is where I read it, so fine with me. A display? Do you intend to use ISPF, CMS? You need to provide better info. I am hoping to run

3705

OK, I forgot that the Usenet gateway doesn't work anymore. I am wondering what software one needs for a 3705 to connect up ordinary ASCII terminals. For example, what would be needed to use TSO or Wylbur on ASCII terminals? I know this is what was done 35 years ago, but I don't know now who

Re: RPG for the 360/20

In article of4a881d2e.1388e6c9-on48257e66.00179ed9-48257e66.001c4...@sg.ibm.com you wrote: (snip) As for where you'd obtain any of these compilers (except obviously 5740-RG1), I'm not sure. You could try the roughly five organizations that have actual Model 20 machines in their collections.

RPG for the 360/20

Just wondering, does anyone know where a copy of the RPG compiler for the 360/20 is? Presumably on cards, but maybe some other form. Other 360/20 software could also be useful, but mostly if it doesn't need disk or tape. thanks, -- glen

Re: Mysterious U4088-63 from RPTSTG(ON)

In article 09a301d098e6$0607d120$12177360$@mcn.org you wrote: (snip) I have isolated the ABEND to a call to a self-written assembler function called ISAUTH. I execute a printf() immediately before the call but not a printf() after. I am posting below the entire code of ISAUTH. CDSALEN has a

Re: IBM C compiler substituting for macros inside literals?

Charles Mills write: #define V 5 #define STRINGZ(a,b,c,d) printf(%d %s %s %s %s\n, V, #a, #b, #c, #d) STRINGZ(The, quick, brown, fox); the compiler is making of it printf(%fox %s %s %s %s\n, 5, The, quick, brown, fox); As I

Re: OPEN not filling in DCBBLKSI for RECFM=U data set

Paul wrote: IBM designers a half century ago are not to be forgiven for the continuing anguish they inflicted on programmers in order to save two bytes in the DCB. There should have been two separate fields, one for the label block size; the other for the size of the block currently

Re: XR vs SR

David Bond wrote: Anyone who thinks that the S/360 instruction timings have any relevance to how machines work today has no understanding of the last several decades of processor design. Yes, simple instructions generally execute faster than more complex instructions. But even that rule of

XR vs SR

Robin wrote: XR Rn,Rn is faster than SR. But does it matter? Who says that XR is faster than SR? I know the IBM OS/360 software and compilers generate SR instead of XR. From: http://bitsavers.trailing-edge.com/pdf/ibm/360/A22_6825-1_360instrTiming.pdf on many S/360 models SR was much

BCT or BCTR

Someone wrote: And you can use BCTR to save a few µS. Why do you think BCTR would save such a large amount of time? Perhaps you're again talking about old machines. Surely BRCT/JCT would be the time saver on a current machine if there is one for this case. Yes, he must have been thinking

Re: Data flow for 1403-N1?

From GA24-3073-8_1403_printer.pdf on bitsavers, in figure 4, it looks like 48 train characters align with 132 print positions, and gcd(132,48) = 12 chain characters, or every 11th print position, can be aligned at once. (Chain printers are all except 3 and N1.) The formula on page 27 indicate

Re: IBM Hijacking User SVC ABEND code S048

Someone wrote: An abend from SVC 248 would be FF8, not 0F8, user or not. I used to see FFE abends from time to time in a prior shop, and it was from one of our IMS or ISV SVCs (can't remember which now), which happened to be 254 (FE). 0F8 is an abend in Supervisor control,

Re: COBOL packed decimal

(John Gilmore wrote) A little presumptuously perhaps, I shall reply for 'someone' He or she would appear to be a soul mate. The remark about floating-point that Mr Hermannsfeldt attributes to Knuth are relevant to HFP and, perhaps, BFP. Their timing moots any relevance to Cowlishaw's

Decimal arithmetic

(someone wrote) Some years ago this situation changed dramatically. Mike Cowlishaw---he who designed REXX---devised what is now ANSI decimal floating point (DFP). DFP behaves consistently in ways that do not surprise accountants. (All three floating-point formats are supported by