Quote:
Originally Posted by cadaveca
PD emulates x87 entirely, hence the slowdown, IMHO.
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Pardon me, I know what x87 is but I don't know what you mean when you say "PD", could you clarify?
Quote:
Originally Posted by cadaveca
FPU doesn't matter when you aren't capable of running the instruction in the first place.
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I agree but do we know that the benchmark isn't executing x87 instructions in the first place?
Also floating point emulation is worse than just using floating point numbers to begin with. You really need the exact value if you want your result of pi to be at all accurate. As that decimal place goes further out you're going to start losing precision.