From:	sandmann AT clio DOT rice DOT edu (Charles Sandmann)
Message-Id:	<10304291616.AA20589@clio.rice.edu>
Subject:	Re: uclock proposed patch
To:	djgpp-workers AT delorie DOT com
Date:	Tue, 29 Apr 2003 11:16:14 -0500 (CDT)
In-Reply-To:	<3EAE7990.C6D03B76@yahoo.com> from "CBFalconer" at Apr 29, 2003 09:09:36 AM
X-Mailer:	ELM [version 2.5 PL2]
Mime-Version:	1.0
Reply-To:	djgpp-workers AT delorie DOT com
Errors-To:	nobody AT delorie DOT com
X-Mailing-List:	djgpp-workers AT delorie DOT com
X-Unsubscribes-To:	listserv AT delorie DOT com

> I am running a 486 under W98 with no RDTSC - any such crashes.

This code will only be called under Windows NT, Windows 2000 or
Windows XP (note check for _os_trueversion == 0x532).  Your 486 
will use the PIT timer.  It would never even try to execute this 
code, much less install the handler.  But if you are worried, feel 
free to build and test the protection code in the doucmentation for 
_rdtsc (I tried it on a few 386/486 machines, but not specifically 
a 486 under W98).

- Raw text -