From: "James A. Donald" <jamesd@echeque.com>
Date: Wed, 20 Sep 95 22:32:16 PDT
To: karlton@netscape.com (Phil Karlton)
Subject: Re: "random" number seeds vs. Netscape
Message-ID: <199509210531.WAA09687@blob.best.net>
MIME-Version: 1.0
Content-Type: text/plain


At 05:01 PM 9/20/95 -0400, Perry E. Metzger wrote:

>PC timers inherently run at Mhz speed -- they interrupt every 100th of
>a second but you can get finer resolution by querying the clock
>chip. Does Windows let you do this?

Yes:  1.196 MHz precision.

The VTD maintains a 64-bit value that is accurate to 0.8 microseconds. This
value is obtained by calling the VTD with AX set to 0100h. The 64-bit value
is returned in EDX:EAX. The returned value indicates the time Windows has
been running based on a 1.196 MHz clock.
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