From: tmoran@acm.org
Subject: Re: timeouts
Date: Sun, 29 Aug 2004 17:17:33 GMT
Date: 2004-08-29T17:17:33+00:00 [thread overview]
Message-ID: <NcoYc.80447$Fg5.40549@attbi_s53> (raw)
In-Reply-To: sa47jrib9t7.fsf@snoopy.apana.org.au
>Sorry if I am thick, but what significance does 2**24/(3*1_193_182) hold?
It isn't obvious? ;)
The original IBM PC had a timer running at 1.193182 MHz (they used cheap
timers built for TV sets). These days PC descendants often use a small
multiple of that rate, eg, 3*1193182 ticks/sec, so 2**24 ticks takes
4.686968 seconds. The chipset problem had to do with a 24 bit overflow,
and 4.6 seemed suspiciously close. Of course the chipset problem ought to
have been fixed in any reasonably new hardware, so that may be a red herring...
next prev parent reply other threads:[~2004-08-29 17:17 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-18 23:46 timeouts Brian May
2004-08-19 1:03 ` timeouts Jeffrey Carter
2004-08-19 3:10 ` timeouts Brian May
2004-08-19 19:18 ` timeouts Jeffrey Carter
2004-08-22 4:25 ` timeouts Brian May
2004-08-22 11:00 ` timeouts Stephen Leake
2004-08-22 11:29 ` timeouts Brian May
2004-08-22 19:56 ` timeouts Jeffrey Carter
2004-08-27 10:22 ` timeouts Brian May
2004-08-27 10:31 ` Cygwin and gcc-ada 3.4.1 (was Re: timeouts) Jano
2004-09-13 15:05 ` Dr Steve Sangwine
2004-08-27 17:54 ` timeouts Jeffrey Carter
2004-08-28 0:24 ` timeouts Stephen Leake
2004-08-29 0:24 ` timeouts Brian May
2004-08-29 4:40 ` timeouts tmoran
2004-08-29 8:57 ` timeouts Brian May
2004-08-29 17:17 ` tmoran [this message]
2004-08-29 22:37 ` timeouts Brian May
2004-08-29 13:31 ` timeouts Stephen Leake
2004-08-29 22:32 ` timeouts Brian May
2004-08-30 1:06 ` timeouts Stephen Leake
2004-08-30 12:17 ` timeouts Jano
2004-08-19 3:40 ` timeouts Steve
2004-08-22 4:18 ` timeouts Brian May
2004-08-22 12:54 ` timeouts Jeff C,
2004-08-26 1:28 ` timeouts Brian May
2004-08-26 10:00 ` timeouts Pascal Obry
2004-08-26 11:34 ` timeouts Georg Bauhaus
2004-08-26 11:58 ` timeouts Jean-Marc Bourguet
2004-08-26 22:20 ` timeouts Brian May
2004-08-27 18:12 ` timeouts Pascal Obry
2004-08-26 12:30 ` timeouts Stephen Leake
2004-08-26 22:54 ` timeouts Brian May
2004-08-27 1:17 ` timeouts Stephen Leake
2004-08-27 1:31 ` timeouts tmoran
2004-08-27 8:03 ` timeouts Brian May
2004-08-26 13:34 ` timeouts Steve
2004-08-26 14:02 ` timeouts Georg Bauhaus
2004-08-26 23:03 ` SPARK Brian May
2004-08-27 10:11 ` SPARK Georg Bauhaus
2004-08-26 23:20 ` timeouts Brian May
2004-08-27 10:20 ` timeouts Georg Bauhaus
2004-08-26 12:38 ` timeouts Jano
2004-08-26 19:07 ` timeouts Randy Brukardt
2004-08-26 21:25 ` timeouts tmoran
2004-08-26 23:01 ` timeouts Brian May
2004-08-27 0:03 ` timeouts Björn Persson
2004-08-27 9:31 ` timeouts Jano
2004-08-26 22:59 ` timeouts Brian May
2004-08-27 9:58 ` timeouts Jano
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