Re: [hatari-devel] An issue with a demo "We Were @" by Oxygene

[Nicolas Pomarède <npomarede@xxxxxxxxxxxx>]

Le 10/02/2021 à 16:27, Cyprian Konador a écrit :
> Thanks Christian for the investigation.
> In the meantime I've checked the latest Steem, and the demo works fine 
> with 2MB and 4MB RAM with its GEMDOS emulation.
>
> Just to let you know, I also checked the ACSI disk image with AHDI and 
> the demo has the same issue in both emulators.
>
> Thanks
>
> Cyprian

Hi

Christian is right, I tested the floppy version, not the HD version.

Hatari gemdos HD emulation uses some native 68000 code located in the 
the cartridge space FA0000, unlike Steem HD emulation which really 
intercept disk accesses when reading/writing in the IO mem space FFxxxx.

This has some pros/cons, but in the case of Hatari it means system 
memory in lower RAM should not be altered by the program running from HD.

Nicolas