Re: [hatari-devel] Hatari FPU support (was: macOS : FPU using EmuTOS)

[Eero Tamminen <oak@xxxxxxxxxxxxxx>]

Hi,

On 12/5/20 6:11 PM, Jerome Vernet wrote:
> Wich CPU/FPU combination are usable ?
>
> Even thru the SDL GUI, I can select 68000/6882, Hatari ask to restart,
> but no FPU is shown..
>
> There is now way to have a 6882 with a 68000 ?

Hatari manual "The CPU Dialog" section says:
"The FPU settings are also only available with
the "WinUAE" builds of Hatari. They can be used
to select the type of floating point unit of CPUs
>= 68020."

Looking back to old discussions on 68000 FPU
support, they apparently work very differently
and would be hard to emulate & undocumented.

See:
* Thorsten: 
https://listengine.tuxfamily.org/lists.tuxfamily.org/hatari-devel/2015/12/msg00008.html
* Toni: 
https://listengine.tuxfamily.org/lists.tuxfamily.org/hatari-devel/2015/12/msg00007.html


Nicolas, I think FPU should be listed in Hatari
manual HW matrix, but I'm not sure what notes
I should add for each machine type.  Any suggestions?

SDL, macOS & Python GUI should probably also note
that FPU selection is 020+ specific.

(And I guess I should move FPU accuracy note from
Features section to CPU dialog section.)


	- Eero