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Date: | Mon, 11 Jun 2001 19:55:31 -0400 |
Message-Id: | <200106112355.TAA12944@envy.delorie.com> |
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From: | DJ Delorie <dj AT delorie DOT com> |
To: | djgpp AT delorie DOT com |
In-reply-to: | <3c03g9.v17.ln@nix-if1> (yurick@oblik.dp.ua) |
Subject: | Re: __djgpp_map_physical_memory - some questions |
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> Is DOS _really_ so slow? No, but consider that Unix keeps track of the time *as* a time_t, so time() merely reads a number from memory and returns it - a few CPU cycles at best. DOS, however, uses the hardware realtime clock, so it must convert month/day/year/hour/minute/second/timezone to a time_t each time you need to know what time it is. The conversion is slow.
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