From: "Tony Ingenoso" 

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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