From: billy@MIX.COM Newsgroups: alt.sys.pdp11,comp.sys.dec,vmsnet.pdp-11 Subject: Re: Y3K for PDP-11 Operating Systems Date: Mon, 23 May 2011 03:41:40 +0000 (UTC) Organization: PANIX Public Access Internet and UNIX, NYC Lines: 55 Message-ID: References: <4d99c3b6$0$23756$14726298@news.sunsite.dk> <4dc1e27c.40366475@news.tpgi.com.au> NNTP-Posting-Host: panix5.panix.com X-Trace: reader1.panix.com 1306122100 5441 166.84.1.5 (23 May 2011 03:41:40 GMT) X-Complaints-To: abuse@panix.com NNTP-Posting-Date: Mon, 23 May 2011 03:41:40 +0000 (UTC) Path: csiph.com!x330-a1.tempe.blueboxinc.net!usenet.pasdenom.info!news.stben.net!border3.nntp.ams.giganews.com!border1.nntp.ams.giganews.com!nntp.giganews.com!feeder.news-service.com!feeder2.cambriumusenet.nl!feed.tweaknews.nl!209.197.12.242.MISMATCH!nx01.iad01.newshosting.com!newshosting.com!news-out.readnews.com!transit3.readnews.com!panix!MIX!Blackbird Xref: x330-a1.tempe.blueboxinc.net comp.sys.dec:457 In vmsnet.pdp-11 paramucho wrote: > With MENTEC gone the original version of RT-11 has been orphaned. Various considerations have been brought up in this thread, but not having the sources, to say nothing of permission to work on V5.7 (which has other improvements and bug fixes, and from which it would be best to continue), is a real show-stopper in itself. And then, the last support email I received for the RT-11 Kermit was so long ago (many years) it's now archived, so I can't easily check the date. The last for RSX was 11-Aug-2003, and the last for RSTS was 20-Dec-2006. My point being I don't think any of these operating systems are still widely used. Virtually all of the inquiries over the last decade have been to ask how to move data from a PDP-11 to another system. That said, I still use RT-11 and TSX+, although their days as videotape edit system controllers are now gone. Hardly anyone is even using tape anymore, and more recently even finding tape (raw stock) for those who do want to use it has become difficult. The last edit system hardware vendor (Editware), which bought and took over the Tektronix edit systems, used to have a notice on their web site telling people - | At midnight of December 31, 1999, the date will change to | 01-JAN-:0. Instead of rolling from 99 to 00, it rolls to ":0" | (colon-zero). Then in 2001, it will roll to ":1" and so on. They eventually bought V5.7, though. My feeling is if someone wants to run RT-11 a hundred years from now, it's highly unlikely it will be to get any real work done, and they can just set the clock back accordingly. Or this... > Thinking about how emulators might be better able to preserve and > extend the lives of historical operating systems by providing managed > environments would be more productive IMO. ...would be a heck of a lot easier to do. There are probably some improvements to be made, and bugs to be fixed, but I'm happy enough with it now. The only real problem I can recall is a handler can not be deassigned while a read completion routine for it is queued (you must exit the program), but that's a rather minor thing, and a trade-off I agreed to with DEC many years ago - that is, fixing this would be more trouble than it's worth... Billy Y.. -- sub #'9+1 ,r0 ; convert ascii byte add #9.+1 ,r0 ; to an integer bcc 20$ ; not a number