| Re: [hatari-devel] Falcon bus error at 0xFF8060 |
[ Thread Index |
Date Index
| More lists.tuxfamily.org/hatari-devel Archives
]
- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: Re: [hatari-devel] Falcon bus error at 0xFF8060
- From: Thomas Huth <th.huth@xxxxxxxxx>
- Date: Fri, 23 Apr 2021 11:34:52 +0000
- Dkim-signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1619177694; bh=K8J39ZbqZMTFX96WIK93ra76b8dw7mR9PO+re4MnZk4=; h=Date:From:To:Subject:From; b=DzUJEY43SGvud9gp9/6/8stt1tC/uR+a321k9R0QSIjBrr9y/ZG8vAjWBwItJ6a+8 jek3ZmJJrnDLjnnmabUL/HMWEKVr22ads3LxSsff5RdO1QptMZgpgEDDq0MaEhGHnk TC9EEP+olQyfAncYF1Rq+YGr5jykr57WLkIr6eItdOqHAyjyJUrkurytZyPwQXODWB ez1wTtI7eDuM8hVXYzdtX3xNjZLcdGKEcmUO3qHgNTyvY3djy3B5aGNGt2SI/U6oSm PF7bZDvyCq32VKdZ74XmzaP1z5NPqbIr/ikgA9MKgzluaNgj0NSw0AT9DiG+6dd2oa VlRU1p9g/7gfg==
Am Fri, 23 Apr 2021 08:35:55 +0200
schrieb Christian Zietz <czietz@xxxxxxx>:
> Hello,
>
> while testing undocumented Falcon registers [1], I found an oddity
> when comparing with Hatari. In Hatari's source code it says "no bus
> error here" for addresses 0xFF8060 - 0xFF8063 [2]. This is not true
> on my Falcon, where accessing these addresses does in fact cause a
> bus error. See the attached results from Hatari's buserr*.prg tester.
> (The Falcon was running in "normal" bus mode.)
>
> Assuming that the original test by which Hatari's behavior was
> determined was correct, hence, Falcons must differ in this regard. Can
> people here confirm that their Falcons do *not* bus error when
> accessing 0xFF8060 - 0xFF8063?
The bus error listing used in Hatari has been created on my Falcon, so
at least my Falcon does not cause a bus error here.
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?
Thomas