The New Asm's mhz.ex
- Posted by xerox_irs at lvcm.com
May 23, 2003
This is a multi-part message in MIME format.
------=_NextPart_000_0005_01C320A7.0979A460
charset="iso-8859-1"
Well this is actually an old problem, and I just never reported =
it(sorry) because I could fix it in a half-second. In the mhz.ex, the =
reading is inaccurate, it reports 167ish for my 700mhz, thats because =
over the course of 5 seconds, it generate about 3.5 billion ticks, and =
if it is just a slite tad faster, say generating 4.167 billion tick, =
well it drops off the '4' (cause 4billion is bigger than 32bit) or the =
amount (cyclemark2-cyclemark1) may be negetive leading me to believe it =
generates 4bill - 167mill.
Either way it either needs the full 64bit number,(which you can do as =
there are mmx instructions on most comps with rdtsc) or shorten the time =
of five seconds, so it doen't overflow, but yes this does decrease the =
accuracy.
This is a little tiny problem, not worth mentioning though, so its not a =
huge priority. But it may take a massive amount of effort to correct =
this(ie changing the 5 to a 1 or 2 in one place).
Thanks for the library
Daniel Kluss
------=_NextPart_000_0005_01C320A7.0979A460
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2800.1170" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Well this is actually an old problem, =
and I just=20
never reported it(sorry) because I could fix it in a half-second. In the =
mhz.ex,=20
the reading is inaccurate, it reports 167ish for my 700mhz, thats =
because over=20
the course of 5 seconds, it generate about 3.5 billion ticks, and if it =
is just=20
a slite tad faster, say generating 4.167 billion tick, well it =
drops off=20
the '4' (cause 4billion is bigger than 32bit) or the amount=20
(cyclemark2-cyclemark1) may be negetive leading me to believe it =
generates 4bill=20
- 167mill.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Either way it either needs the full =
64bit=20
number,(which you can do as there are mmx instructions on most comps =
with rdtsc)=20
or shorten the time of five seconds, so it doen't overflow, but yes this =
does=20
decrease the accuracy.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>This is a little tiny problem, not =
worth mentioning=20
though, so its not a huge priority. But it may take a massive amount of =
effort=20
to correct this(ie changing the 5 to a 1 or 2 in one =
place).</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=3DArial size=3D2>Thanks for the library</FONT></DIV>
------=_NextPart_000_0005_01C320A7.0979A460--
|
Not Categorized, Please Help
|
|
