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Article #12070

Re: clockspeed

#12070
From: Kris Heidenstrom
Date: Sun, 26 Nov 1995 00:00
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In article <498bs7$e88@tzlink.j51.com>, David Grossberg <mouse@j51.com> wrote:
> Does anyone know how to check the clockspeed of a PC.  I'm writing an
> arcade style action game which needs to run at a consistent speed on
> any PC or clone.  I simpy need to check the clock speed of the computer
> at the start of the program and insert an appropriate delay in the
> main loop.  I'm using Borland Turbo C++.

That's a very bad way to try to make your program speed independent
of processor speed!  There are several better ways, using the timer
which is clocked at a fixed speed regardless of the CPU clock rate.
You can find details in my timing FAQ, available via FTP from SimTel
and its mirror sites (e.g. oak.oakland.edu, ftp.gate.net) in the
/SimTel/msdos/info directory, file name pctim002.zip.  Good luck!

Kris
-- 
Kris Heidenstrom   kheidens@actrix.gen.nz   Wellington, New Zealand
"Minister can I just begin by asking why, with manufacturing output
down and Sterling showing a steep decline on world markets, are you
wearing a giant rabbit costume?" -- Interview, Alexei Sayle's Stuff
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From: kheidens@atlantis.actrix.gen.nz (Kris Heidenstrom)
Subject: Re: clockspeed
Date: 1995/11/26
Message-ID: <DIMpBC.6M8@actrix.gen.nz>
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