[Freemint-list] Falcon + _FPU cookie

[Miro Kropáček]

>
> i have just found in some doc that on a falcon, accessing $fff940 (the
> address
> for a memory mapped FPU) does not generate a bus-error. Can somebody prove
> that? If that is true, then the fpu detection code will always report an
> SFP004 on falcons, even if there is none (and afaik, falcons never had
> one).
>
It wont. The SFP is checked only for  68000 and 68010.

It might be rather uncommon, but you could have an MSTE with SFP004 and
> upgraded it with an FPU, in which case the cookie should report both.
>
How would you have it 'upgraded with an FPU' if not via the SFP?

If you mean something like upgraded with PAK68/3 and FPU, in that case a)
FreeMiNT will complain (because it will detect an 030 machine running 000
kernel) and b) the original CPU (and therefore the SFP) will be
inaccessible.

-- 
MiKRO / Mystic Bytes
http://mikro.atari.org
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