| Re: [hatari-devel] Falcon bus error at 0xFF8060 |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] Falcon bus error at 0xFF8060
- From: Thomas Huth <th.huth@xxxxxxxxx>
- Date: Sat, 24 Apr 2021 05:03:36 +0000
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Am Fri, 23 Apr 2021 13:46:41 +0200
schrieb Christian Zietz <czietz@xxxxxxx>:
> Thomas Huth schrieb:
>
> > But I also have a Magnum Fast-RAM card installed in my Falcon ...
> > maybe it's related to that one? Does anybody know how the Magnum
> > card gets set up during boot?
>
> Indeed: I checked this by reverse-engineering the Magnum Falcon driver
> with Ghidra. To test for presence of a Magnum and to subsequently
> configure it, the driver accesses 0xFF8061 and 0xFF8063. We can
> therefore conclude that these registers are only present in your
> Falcon because of the Magnum card. Maybe Hatari should thus be
> changed.
Wow, thanks for finding that out! I've now changed Hatari to generate a
bus error here, too (since we don't emulate a Magnum card).
Thomas