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Groups > comp.sys.acorn.programmer > #6066
| From | Martin <News03@avisoft.f9.co.uk> |
|---|---|
| Subject | Re: Subtracting times |
| Newsgroups | comp.sys.acorn.programmer |
| Date | 2020-04-23 00:07 +0100 |
| Message-ID | <586569f352News03@avisoft.f9.co.uk> (permalink) |
| References | (5 earlier) <r33gnb$1q0r$1@gioia.aioe.org> <6a72eb4758.Alan.Adams@ArmX6.adamshome.org.uk> <r38t89$nvf$1@gioia.aioe.org> <20365a4958.Alan.Adams@ArmX6.adamshome.org.uk> <69d8792f-18c1-4a2c-8e14-0a7e0fd698c7@googlegroups.com> |
| Organization | None |
On 22 Apr in article <69d8792f-18c1-4a2c-8e14-0a7e0fd698c7@googlegroups.com>, <jeffrey.a.doggett@gmail.com> wrote: > Sorry that I'm late to the party here. In order to calculate the > elapsed time you can just subtract the lower 4 bytes. > So if Start% is the lower four bytes of the start time & Finish% is > the lower four bytes of the finish time: > TimeTaken% = Finish% - Start% > This "Just works" and will always produce the correct result even > with rollovers. > If TimeTaken% < 0 then the finish was before the start. I don't think this works if the time difference is over 35 weeks.... -- Martin Avison Note that unfortunately this email address will become invalid without notice if (when) any spam is received.
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Subtracting times Alan Adams <alan@adamshome.org.uk> - 2020-02-18 11:55 +0000
Re: Subtracting times Jean-Michel <jmc.bruck@orange.fr> - 2020-02-18 19:11 +0100
Re: Subtracting times Steve Drain <steve@kappa.me.uk> - 2020-02-21 03:28 -0800
Re: Subtracting times Alan Adams <alan@adamshome.org.uk> - 2020-02-21 12:45 +0000
Re: Subtracting times Alan Adams <alan@adamshome.org.uk> - 2020-02-21 15:17 +0000
Re: Subtracting times Steve Drain <steve@kappa.me.uk> - 2020-02-22 10:37 +0000
Re: Subtracting times Steve Drain <steve@kappa.me.uk> - 2020-02-25 16:05 +0000
Re: Subtracting times Alan Adams <alan@adamshome.org.uk> - 2020-02-25 16:35 +0000
Re: Subtracting times Steve Drain <steve@kappa.me.uk> - 2020-02-27 17:10 +0000
Re: Subtracting times Steve Drain <steve@kappa.me.uk> - 2020-02-27 10:06 -0800
Re: Subtracting times Alan Adams <alan@adamshome.org.uk> - 2020-02-28 11:21 +0000
Re: Subtracting times jeffrey.a.doggett@gmail.com - 2020-04-22 12:00 -0700
Re: Subtracting times Martin <News03@avisoft.f9.co.uk> - 2020-04-23 00:07 +0100
Re: Subtracting times jeffrey.a.doggett@gmail.com - 2020-04-23 03:13 -0700
Re: Subtracting times Martin <News03@avisoft.f9.co.uk> - 2020-04-23 18:01 +0100
Re: Subtracting times "John Williams (News)" <UCEbin@tiscali.co.uk> - 2020-04-23 18:06 +0100
Re: Subtracting times jeffrey.a.doggett@gmail.com - 2020-04-23 11:18 -0700
Re: Subtracting times Martin <News03@avisoft.f9.co.uk> - 2020-04-23 21:23 +0100
Re: Subtracting times David Higton <dave@davehigton.me.uk> - 2020-04-24 15:24 +0100
Re: Subtracting times David Higton <dave@davehigton.me.uk> - 2020-04-23 20:57 +0100
Re: Subtracting times jgh@mdfs.net - 2020-02-23 17:39 -0800
Re: Subtracting times Steve Drain <steve@kappa.me.uk> - 2020-02-24 10:23 +0000
Re: Subtracting times Alan Adams <alan@adamshome.org.uk> - 2020-02-24 11:12 +0000
Re: Subtracting times Martin <News03@avisoft.f9.co.uk> - 2020-02-24 13:05 +0000
Re: Subtracting times Matthew Phillips <spam2011m@yahoo.co.uk> - 2020-02-19 08:35 +0000
Re: Subtracting times Alan Adams <alan@adamshome.org.uk> - 2020-02-19 10:03 +0000
Re: Subtracting times Sebastian Barthel <naitsabes@freenet.de> - 2020-02-19 13:04 +0000
Re: Subtracting times Alan Adams <alan@adamshome.org.uk> - 2020-02-19 16:41 +0000
Re: Subtracting times jgh@mdfs.net - 2020-02-19 12:01 -0800
Re: Subtracting times Matthew Phillips <spam2011m@yahoo.co.uk> - 2020-02-23 20:46 +0000
Re: Subtracting times Martin <News03@avisoft.f9.co.uk> - 2020-02-19 23:54 +0000
Re: Subtracting times Alan Adams <alan@adamshome.org.uk> - 2020-02-20 11:18 +0000
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