From: "Campbell, Rolf [SKY:1U32:EXCH]" <moscoop AT americasm01 DOT nt DOT com>
Newsgroups: comp.os.msdos.programmer,comp.os.msdos.djgpp
Subject: Re: Uptime and entropy in DOS
Date: Fri, 11 Feb 2000 09:47:00 -0500
Organization: Nortel Networks
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Damian Yerrick wrote:

> Is it possible to get the uptime of a DOS system?  I need more entropy
> than the 32 bits I get from time(NULL) to initialize a pseudorandom
> number generator.  Is there a predictable way to get at least 64 bits
> of entropy?

    On Pentium's, there is a 64-bit cycle counter, but the upper bits
will always be zero unless the machine's been running a few years...

--
(\/) Rolf Campbell (\/)