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| From | moroney@world.std.spaamtrap.com (Michael Moroney) |
| Newsgroups | comp.os.vms |
| Subject | Re: Pointless Nostalgia: System Service Dispatching |
| Date | Thu, 30 Jun 2016 16:53:17 +0000 (UTC) |
| Organization | The World : www.TheWorld.com : Since 1989 |
| Lines | 22 |
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Johnny Billquist <bqt@softjar.se> writes: >On 2016-06-30 01:05, lawrencedo99@gmail.com wrote: >> On Wednesday, June 29, 2016 at 11:36:10 PM UTC+12, Johnny Billquist wrote: >>> Consider a $QIOW for example. If you get an AST, you do not want the $QIOW >>> to be reexecuted. >> >> That'冱 not a problem, because there is no actual $QIOW system call. >There isn't? Did I place the $ on the wrong side or something now? Or >what are you suggesting? $QIOW (and most $xxxW services which also have a corresponding $xxx service) are implemented as a $QIO followed immediately by a $SYNCH of the specified event flag/IOSB pair. I believe there is a stub routine that makes both calls. I believe only $HIBER can potentially be re-executed. It does (at least on VAX) some funky stack manipulation to place a call to the internal routine back on the stack rather than the following instruction. The called routine determines whether to actually hibernate based on internal states.
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Pointless Nostalgia: System Service Dispatching lawrencedo99@gmail.com - 2016-06-29 02:53 -0700
Re: Pointless Nostalgia: System Service Dispatching Johnny Billquist <bqt@softjar.se> - 2016-06-29 13:36 +0200
Re: Pointless Nostalgia: System Service Dispatching lawrencedo99@gmail.com - 2016-06-29 16:05 -0700
Re: Pointless Nostalgia: System Service Dispatching Johnny Billquist <bqt@softjar.se> - 2016-06-30 14:45 +0200
Re: Pointless Nostalgia: System Service Dispatching moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-06-30 16:53 +0000
Re: Pointless Nostalgia: System Service Dispatching lawrencedo99@gmail.com - 2016-06-30 15:32 -0700
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-06-30 16:55 +0000
Re: Pointless Nostalgia: System Service Dispatching Johnny Billquist <bqt@softjar.se> - 2016-06-30 21:13 +0200
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-06-30 19:52 +0000
Re: Pointless Nostalgia: System Service Dispatching Johnny Billquist <bqt@softjar.se> - 2016-07-01 14:11 +0200
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-07-01 12:46 +0000
Re: Pointless Nostalgia: System Service Dispatching Johnny Billquist <bqt@softjar.se> - 2016-07-01 17:40 +0200
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-07-01 16:59 +0000
Re: Pointless Nostalgia: System Service Dispatching Johnny Billquist <bqt@softjar.se> - 2016-07-01 19:45 +0200
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-07-01 20:01 +0000
Re: Pointless Nostalgia: System Service Dispatching Johnny Billquist <bqt@softjar.se> - 2016-07-04 12:35 +0200
Re: Pointless Nostalgia: System Service Dispatching lawrencedo99@gmail.com - 2016-07-01 15:18 -0700
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-07-02 20:02 +0000
Re: Pointless Nostalgia: System Service Dispatching lawrencedo99@gmail.com - 2016-07-03 14:10 -0700
Re: Pointless Nostalgia: System Service Dispatching lawrencedo99@gmail.com - 2016-07-04 14:56 -0700
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-07-04 13:25 +0000
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-07-05 00:46 +0000
Re: Pointless Nostalgia: System Service Dispatching David Froble <davef@tsoft-inc.com> - 2016-07-05 08:43 -0400
Re: Pointless Nostalgia: System Service Dispatching lawrencedo99@gmail.com - 2016-07-05 15:40 -0700
Re: Pointless Nostalgia: System Service Dispatching Paul Sture <nospam@sture.ch> - 2016-07-06 07:33 +0200
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-07-06 00:08 +0000
Re: Pointless Nostalgia: System Service Dispatching David Froble <davef@tsoft-inc.com> - 2016-07-05 22:57 -0400
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-07-06 10:43 +0000
Re: Pointless Nostalgia: System Service Dispatching Paul Sture <nospam@sture.ch> - 2016-07-05 12:30 +0200
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-07-05 13:00 +0000
Re: Pointless Nostalgia: System Service Dispatching Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2016-07-06 15:12 +0000
Re: Pointless Nostalgia: System Service Dispatching Paul Sture <nospam@sture.ch> - 2016-07-06 21:50 +0200
[OT] Real Genius, was: Re: Pointless Nostalgia: System Service Dispatching Simon Clubley <clubley@remove_me.eisner.decus.org-Earth.UFP> - 2016-07-07 19:55 +0000
Re: [OT] Real Genius, was: Re: Pointless Nostalgia: System Service Dispatching Paul Sture <nospam@sture.ch> - 2016-07-07 22:27 +0200
Re: Pointless Nostalgia: System Service Dispatching VAXman- @SendSpamHere.ORG - 2016-07-06 15:42 +0000
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