BCS wrote:
If you can
assume that any FPU will be designed to work with IEEE 754 (would that
be valid now days?)
Not at all!
IIRC, some of the PS2's CPUs don't implement NaN or Infinity (just check
out the "Advanced" page of PCSX2, you can set how accurately the various
PS2 CPUs FP operations are emulated on x86). Not sure if the PS2 is "now
days," but...
Also, this is kind of old, but it suggests GPUs have all sorts of
different behavior: http://www.cs.unc.edu/~ibr/projects/paranoia/ ...
When being used only for graphics, accuracy often isn't as important as
speed, however with GPGPU, I wouldn't be surprised if newer GPUs were
IEEE-compliant.
