On 08/21/10 12:00 PM, Jeroen Demeyer wrote:
On 2010-08-21 07:55, Carl Witty wrote:
On Fri, Aug 20, 2010 at 9:26 PM, Dr. David Kirkby
wrote:
Unless OS X rounds by default to 64-bits, I can't understand how this would
have ever worked. Why was it not necessary to change the rounding behavior
of
On 2010-Aug-21 05:26:36 +0100, "Dr. David Kirkby"
wrote:
>it is clear that the quad double algorithm assumes that the floating point
>processor rounds to 64-bits, which things like PowerPC and SPARC do.
>
>But Intel and AMD CPUs round to 80 bits by default. As such, on Intel/AMD
>CPUs,
>the qu
On 2010-08-21 07:55, Carl Witty wrote:
> On Fri, Aug 20, 2010 at 9:26 PM, Dr. David Kirkby
> wrote:
>> Unless OS X rounds by default to 64-bits, I can't understand how this would
>> have ever worked. Why was it not necessary to change the rounding behavior
>> of an Intel based OS X system?
>
> Mo
On Fri, Aug 20, 2010 at 9:26 PM, Dr. David Kirkby
wrote:
> Unless OS X rounds by default to 64-bits, I can't understand how this would
> have ever worked. Why was it not necessary to change the rounding behavior
> of an Intel based OS X system?
Modern x86 family chips actually have two totally se
