Re: Kernel FP software completion
On Mon, Jan 25, 1999 at 11:39:55PM -0600, John Goerzen wrote:
> In 2.2.0 (as opposed to the 2.2.0-pre series), there is now a "Kernel FP
> software completion" option. Help says:
It was in 2.2.0-pre9, at least, when I compiled it recently.
> CONFIG_MATHEMU:
>
> This option is required for IEEE compliant floating point arithmetic
> on the Alpha. The only time you would ever not say Y is to say M
> in order to debug the code. Do not say anything but Y unless you
> know what you are doing.
>
>
> So, my question is, why does Alpha suddenly require math emulation when it
> didn't before? Isn't FP one of the Alpha's strongest areas?
Duh, beats me. Probably it's a tiny rounding bug that no one will actually
notice, but which fails some test suite or other. I doubt that MATHEMU
actually emulates anything but the bugfix.
Have fun,
Avery
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