Re: The correctness of floating-point square-root on the PPC603e.

> You don't know how many correct bits it will give. The spec say you
> have at least 5 correct bits. From various tests, the result may be
> more precise, depending on the implementation.

If the chip vendor will stand up and promise more precision, great,
but otherwise depending on more than 5 bits from FRSQTE would be as
foolish as depending on overclocking the chip. I've been using
Motorola/Freescale chips long enough to know that undocumented
behavior can come and go without notice during a minor revision.

-=- Andrew Klossner
.

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