From: "Geo." 

I dare you to do that on a P90..

Geo.

"Tony Ingenoso"  wrote in
message news:3dd31582{at}w3.nls.net...
> Some code could be as pathological as this (paraphrasing Intel assembler
code):
>
> FLDCW  chop
> FDIV
> FLDCW  roundup
> FDIV
> FLDCW  roundown
> FDIV
> FLDCW  roundnearest
> FDIV
>
> Within the span of 8 machine instruction there's 4 divisions each using a
different rounding mode
>
>
> "Tony Ingenoso"  wrote in message
news:3dd30406{at}w3.nls.net...
> > You don't find this anywhere in particular.  The rounding mode can
change as often as the running code desires to change it on the
> > fly.  Some apps could conceivably use all four modes within the space of
20 instructions or less.
> >
> > "Geo."  wrote in message
news:3dd2fd31$1{at}w3.nls.net...
> > > "Tony Ingenoso" 
wrote in message
> > > news:3dd1f09a{at}w3.nls.net...
> > >
> > > > point.  i.e it will have four rounding modes capable of
being abused
and
> > > misused by any and all applications and the OS
> > > >
> > >
> > > Ok now you are confusing me again, where exactly would I see how the
OS
> > > rounds off?
> > >
> > > Geo.
> > >
> > >
> >
> >
>
>

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