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_theCardinal <_the### [at] yahoocom> wrote:
> There are 2 typical variants of FPU around right now - 32 bit and 64 bit,
> matching the type of processor they are included on. Having a 64 bit FPU
> is necessary for doing 64 bit arithmetic in hardware - but is not
> sufficient. It would also require a 64 bit operating system such as
> windows XP x64, vista 64-bit, or a version of Unix compiled for 64 bit
> systems. All mainstream 64 bit processors can run in a limited 32-bit mode
> to back-support 32 bit execution, if this is the case the precision
> available is still only 32 bit in hardware.
You have a serious confusion there, mister.
How do you think POV-Ray can use 64-bit floating-point numbers
*in hardware* even with 32-bit computers?
--
- Warp
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