[hatari-devel] Re: macOS : FPU using EmuTOS

[Francois LE COAT <lecoat@xxxxxxxxx>]

Hi,

Francois LE COAT writes:
> I made a video demonstration using Hatari 2.3.0 with a Falcon030
> at 32MHz / TOS4.04:
>
>      <https://www.youtube.com/watch?v=SLm5ayChv9Q>
>
> It's the replay of the GEM sequence "EUREKA.REC" with my software,
> with the "RECORD.ACC" accessory. The issue is I used TOS4.04, but
> I wanted to use EmuTOS 1.0 instead, because I know EmuTOS works with
> appl_tplay() and appl_trecord() system calls. But when I switched
> Hatari to boot on EmuTOS 1.0, the FPU (68882) was disabled...
>
>      <http://eureka.atari.org/Hatari230.png>
>
> So, when I start my Eureka 2.12 software, that makes usage of the FPU,
> there's a floating point error (LineF).
>
> Is it a known issue ? Why is the FPU disabled when booting EmuTOS ?

Jérôme Vernet sent me a corrected binary of Hatari 2.3.0 and I made
a demonstration with a Falcon030 at 32MHz / EmuTOS 1.0:

	<https://www.youtube.com/watch?v=-fQCcx4bdnw>

It's the replay of the GEM sequence "3D.REC" with Eureka 2.12, with
the "RECORD.ACC" accessory. This video proves that same operations
can be performed, if you use either TOS4.04 or EmuTOS 1.0.

Regards,

--
François LE COAT
Author of Eureka 2.12 (2D Graph Describer, 3D Modeller)
http://eureka.atari.org/