Lines: 5
X-Admin: news AT aol DOT com
From: sterten AT aol DOT com (Sterten)
Newsgroups: comp.os.msdos.djgpp
Date: 26 Jul 2001 13:48:40 GMT
References: <458df9bf DOT 0107260409 DOT 6cd26945 AT posting DOT google DOT com>
Organization: AOL http://www.aol.com
Subject: Re: Cpu speed detection using DJGPP?
Message-ID: <20010726094840.20158.00001476@ng-bh1.aol.com>
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com

rdtsc puts the cyles into edx:eax ,

but you are ignoring edx.
So you routine fails with probability about 1:20000