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Hello Mike,

Saturday, October 17, 2009, 2:13:08 AM, you wrote:

> Well, there's your problem ... sizeof(long double) is 12 bytes for
> the x86 OSX ABI, but 16 bytes for the x64 OSX ABI (due to stricter
> alignment rules).

> But the stores from the x87 FPU to a long double only write to the
> first 12 bytes.

10 bytes, i think

Best regards,